// @(#)root/spectrumpainter:$Id: TSpectrum2Painter.cxx,v 1.00
// Author: Miroslav Morhac 29/09/06

/*************************************************************************
 * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers.               *
 * All rights reserved.                                                  *
 *                                                                       *
 * For the licensing terms see $ROOTSYS/LICENSE.                         *
 * For the list of contributors see $ROOTSYS/README/CREDITS.             *
 *************************************************************************/


//______________________________________________________________________________
//
// Two-dimensional graphics function
//
// TSpectrum2Painter is a set of graphical functions developed by Miroslav
// Morhac to paint 2D-histograms in three dimensions. This package is accessed
// via THistPainter in a transparent way. For the ROOT user it is enough to use
// the "SPEC" option to draw a 2D-Histogram. This option offers many
// functionalities detailed in the header of the PaintSpectrum function.
//
// Reference:
// Morhac M., Kliman J., Matousek V., Turzo I.: Sophisticated visualization
// algorithms for analysis of multidimensional experimental nuclear data. Acta
// Pysica Slovaca Vol. 54/ 4 (2004), pp. 385-400.

#include <climits>

#include "TROOT.h"
#include "TClass.h"
#include "TClass.h"
#include "TColor.h"
#include "TMath.h"
#include "TLine.h"
#include "TEllipse.h"
#include "TPad.h"
#include "TBox.h"
#include "TF1.h"
#include "TH2.h"
#include "TGaxis.h"
#include "THLimitsFinder.h"
#include "TSpectrum2Painter.h"

ClassImp (TSpectrum2Painter)


//______________________________________________________________________________
TSpectrum2Painter::TSpectrum2Painter(TH2* h2, Int_t bs)
   : TNamed ("Spectrum Painter2","Miroslav Morhac Painter")
{
   // TSpectrum2Painter normal constructor

   int i, j;
   double val;
   gPad->Range(0, 0, 1 ,1);
   fXmin = 0;
   fXmax = h2->GetNbinsX() - 1;
   fYmin = 0;
   fYmax = h2->GetNbinsY() - 1;
   fZmin = 0, fZmax = 0;
   fMaximumXScreenResolution = bs;

   for (i = 0;i <= fXmax; i++) {
      for (j = 0;j <= fYmax; j++) {
         val = h2->GetBinContent(i + 1,j + 1);
         if (val > fZmax) fZmax = val;
      }
   }

   fBx1 = gPad->XtoPixel(0.1); //axis positions
   fBx2 = gPad->XtoPixel(0.99);
   fBy1 = gPad->YtoPixel(0.99);
   fBy2 = gPad->YtoPixel(0.05);

   fModeGroup = kModeGroupLightHeight;

   fDisplayMode = kDisplayModeSurface;

   fZscale = kZScaleLinear; // Scale linear, log.

   fNodesx = fXmax-fXmin+1; // Number of nodes in x dimension of grid
   fNodesy = fYmax-fYmin+1; // Number of nodes in y dimension of grid

   fContWidth = 50; // Width between contours,
                    // applies only for contours display mode.
   fAlpha     = 20; // Angles of display,alfa+beta must be less or equal to 90,
                    // alpha- angle between base line of Canvas and left lower
                    // edge of picture picture base plane
   fBeta      = 60; // Angle between base line of Canvas and right lower edge
                    // of picture base plane
   fViewAngle = 0;  // Rotation angle of the view,
                    // it can be 0, 90, 180, 270 degrees.

   fLevels       = 256; // Number of color levels for rainbowed display modes,
                        // It does not apply for simple display modes
                        // algorithm group
   fRainbow1Step = 1;   // Determines the first component step for
                        // neighbouring color levels, applies only for
                        // rainbowed display modes, it does not apply for
                        // simple display modes algorithm group.
   fRainbow2Step = 1;   // Determines the second component step for
                        // neighbouring color levels, applies only for
                        // rainbowed display modes, it does not apply for
                        // simple display modes algorithm group.
   fRainbow3Step = 1;   // Determines the third component step for
                        // neighbouring color levels, applies only for
                        // rainbowed display modes, it does not apply for
                        // simple display modes algorithm group.

   fColorAlg = kColorAlgRgbSmooth; // Applies only for rainbowed display modes
                                   // (rgb smooth alorithm, rgb modulo color
                                   // component, cmy smooth algorithm, cmy
                                   // modulo color component, cie smooth
                                   // algorithm, cie modulo color component,
                                   // yiq smooth algorithm, yiq modulo color
                                   // component, hsv smooth algorithm, hsv
                                   // modulo color component, it does not
                                   // apply for simple display modes
                                   // algorithm group.

   fLHweight = 0.5; // Weight between shading according to fictive light
                    // source and according to channels counts, applies only
                    // for kModeGroupLightHeight modes group.

   fXlight   = 1000; // X position of fictive light source, applies only for
                     // rainbowed display modes with shading according to light.
   fYlight   = 1000; // Y position of fictive light source, applies only for
                     // rainbowed display modes with shading according to light.
   fZlight   = 1000; // Z position of fictive light source, applies only for
                     // rainbowed display modes with shading according to light.

   fShadow   = kShadowsNotPainted; // Determines whether shadow will be drawn
                                   // (no shadow, shadow), for rainbowed
                                   // display modes with shading according to
                                   // light.

   fShading  = kShaded; // Determines whether the picture will shaded,
                        // smoothed (no shading, shading), for rainbowed
                        // display modes only.

   fBezier   = kNoBezierInterpol; // Determines Bezier interpolation (applies
                                  // only for simple display modes group for
                                  // grid, x_lines, y_lines display modes).

   fPenColor = kBlack;         // Color of spectrum.
   fPenWidth = 1;              // Width of line.
   fPenDash  = kPenStyleSolid; // Style of pen.

   fChanmarkEnDis  = kChannelMarksNotDrawn; // Decides whether the channel
                                            // marks are shown.
   fChanmarkColor  = kBlue;                 // Color of channel marks.
   fChanmarkWidth  = 8;                     // Width of channel marks.
   fChanmarkHeight = 8;                     // Height of channel marks.
   fChanmarkStyle  = kChannelMarksStyleDot; // Style of channel marks.

   fChanlineEnDis   = kChannelGridNotDrawn; // Decides whether the channel lines
                                            // (grid) are shown.
   fChanlineColor   = kRed;                 // Color of channel marks.
   fNewColor        = 0;
   fEnvelope        = new Short_t [fMaximumXScreenResolution];
   fEnvelopeContour = new Short_t [fMaximumXScreenResolution];
   for (i=0;i<fMaximumXScreenResolution;i++) {
      fEnvelope[i]        = fBy2;
      fEnvelopeContour[i] = fBy2;
   }
   fH2 = h2;
}


//______________________________________________________________________________
TSpectrum2Painter::~TSpectrum2Painter()
{
   // TSpectrum2Painter destructor

   TColor* col;
   for (int i=0; i<256; i++) {
      col = gROOT->GetColor(250+i);
      if (col) delete col;
   }
   if (fEnvelope) delete [] fEnvelope;
   if (fEnvelopeContour) delete [] fEnvelopeContour;
}


//______________________________________________________________________________
void TSpectrum2Painter::Transform(Int_t it,Int_t jt,Int_t zmt)
{
   // Reads out the value from histogram and calculates screen coordinates
   //
   // Parameters:
   //    -it - node in x- direction
   //    -jt - node in y- direction
   //    -zmt - control variable

   Int_t lxt,lyt,ix,iy;
   Double_t zf = 0;
   Double_t p1,p2;
   p1        = fXmin+fKx*(Double_t)it;
   p2        = fYmin+fKy*(Double_t)jt;
   ix        = (Int_t)p1;
   iy        = (Int_t)p2;
   fDxspline = p1;
   fDyspline = p2;
   if ((zmt==0)||(zmt==-3)||(zmt==-4)) {
      zf = fH2->GetBinContent(ix+1,iy+1);
   } else if (zmt==-2) zf = fZPresetValue;
   if (zf<fZmin) zf = fZmin;
   fZeq = zf;
   switch (fZscale) {
      case kZScaleLog:
         if (zf>=1.0) zf = log(zf);
         else         zf = 0;
         break;
      case kZScaleSqrt:
         if (zf>0) zf = sqrt(zf);
         else      zf = 0;
         break;
   }
   lxt = (Int_t)(fTxx*(Double_t)it+fTxy*(Double_t)jt+fVx);
   lyt = (Int_t)(fTyx*(Double_t)it+fTyy*(Double_t)jt+fTyz*zf+fVy);
   if (lxt<fBx1) lxt = fBx1;
   if (lxt>fBx2) lxt = fBx2;
   if (lyt<fBy1) lyt = fBy1;
   if (lyt>fBy2) lyt = fBy2;
   fXt = lxt;
   fYt = lyt;
   fZ  = zf;
   return;
}


//______________________________________________________________________________
Double_t TSpectrum2Painter::ColorCalculation(
         Double_t dx1, Double_t dy1, Double_t z1,
         Double_t dx2, Double_t dy2, Double_t z2,
         Double_t dx3, Double_t dy3, Double_t z3)
{
   // Calculates and returns color value for the surface triangle
   // given by function parameters:
   //    -dx1,dy1,z1 coordinates of the first point in 3d space
   //    -dx2,dy2,z2 coordinates of the second point in 3d space
   //    -dx3,dy3,z3 coordinates of the third point in 3d space

   Double_t da,db,dc=0,dd,dl,dm,dn,xtaz,ytaz,ztaz,v=0,v1;
   Double_t pi=3.1415927;
   Int_t i;
   switch (fZscale) {
      case kZScaleLog:
         if (z1>900) z1 = 900;
         z1 = exp(z1);
         if (z2>900) z2 = 900;
         z2 = exp(z2);
         if (z3>900) z3 = 900;
         z3 = exp(z3);
         break;
      case kZScaleSqrt:
         z1 = z1*z1;
         z2 = z2*z2;
         z3 = z3*z3;
         break;
   }
   i = fViewAngle;
   i = i/90;
   if ((i==1)||(i==3)) {
      da  = dx1;
      dx1 = dx2;
      dx2 = da;
      da  = dy1;
      dy1 = dy2;
      dy2 = da;
      da  = z1;
      z1  = z2;
      z2  = da;
   }
   xtaz = (dx1+dx2+dx3)/3;
   ytaz = (dy1+dy2+dy3)/3;
   ztaz = (z1+z2+z3)/3;
   if (fModeGroup==kModeGroupLight) {
      dn = (Double_t)fZlight-ztaz;
      dm = (Double_t)fYlight-ytaz;
      dl = (Double_t)fXlight-xtaz;
      da = (dy2-dy1)*(z3-z1)-(dy3-dy1)*(z2-z1);
      db = (z2-z1)*(dx3-dx1)-(z3-z1)*(dx2-dx1);
      dc = (dx2-dx1)*(dy3-dy1)-(dx3-dx1)*(dy2-dy1);
      dd = (da*da+db*db+dc*dc)*(dl*dl+dm*dm+dn*dn);
      dd = sqrt(dd);
      if (dd!=0) v = (da*dl+db*dm+dc*dn)/dd;
      else       v = 0;
      if (v<-1) v=-1;
      if (v>1) v=1;
      v = asin(v);
      v = v+pi/2;
      v = v/pi;
   } else if (fModeGroup==kModeGroupHeight) {
      da = fZmax-fZmin;
      if (ztaz<fZmin) ztaz=fZmin;
      if (ztaz>=fZmax) ztaz=fZmax-1;
      db = ztaz-fZmin;
      if (da!=0) {
         switch (fZscale) {
            case kZScaleLinear:
               dc = db/da;
               break;
            case kZScaleLog:
               if (da>=1) da=log(da);
               if (db>=1) db=log(db);
               if (da!=0) dc=db/da;
               else dc=0;
               break;
            case kZScaleSqrt:
               da = sqrt(da);
               db = sqrt(db);
               dc = db/da;
               break;
         }
      } else {
         dc=0;
      }
      i = (Int_t)dc;
      v = dc-i;
   } else if (fModeGroup==kModeGroupLightHeight) {
      dn = (Double_t)fZlight-ztaz;
      dm = (Double_t)fYlight-ytaz;
      dl = (Double_t)fXlight-xtaz;
      da = (dy2-dy1)*(z3-z1)-(dy3-dy1)*(z2-z1);
      db = (z2-z1)*(dx3-dx1)-(z3-z1)*(dx2-dx1);
      dc = (dx2-dx1)*(dy3-dy1)-(dx3-dx1)*(dy2-dy1);
      dd = (da*da+db*db+dc*dc)*(dl*dl+dm*dm+dn*dn);
      dd = sqrt(dd);
      if (dd!=0) v = (da*dl+db*dm+dc*dn)/dd;
      else v = 0;
      if (v<-1) v=-1;
      if (v>1) v=1;
      v  = asin(v);
      v  = v+pi/2;
      v  = v/pi;
      da = fZmax-fZmin;
      if (ztaz<fZmin)  ztaz = fZmin;
      if (ztaz>=fZmax) ztaz = fZmax-1;
      db = ztaz-fZmin;
      if (da!=0) {
         switch (fZscale) {
            case kZScaleLinear:
               dc = db/da;
               break;
            case kZScaleLog:
               if (da>=1) da = log(da);
               if (db>=1) db = log(db);
               if (da!=0) dc = db/da;
               else       dc = 0;
               break;
            case kZScaleSqrt:
               da = sqrt(da);
               db = sqrt(db);
               dc = db/da;
               break;
         }
      } else {
         dc = 0;
      }
      i  = (Int_t)dc;
      v1 = dc-i;
      v  = fLHweight*v+(1-fLHweight)*v1;
   }
   if (fShadow==kShadowsNotPainted) {
      da = 1.0/(Double_t)fLevels;
      if (v<da) v = da;
   } else {
      da = 2.0/(Double_t)fLevels;
      if (v<da) v = da;
   }
   return(v);
}


//______________________________________________________________________________
Double_t TSpectrum2Painter::ShadowColorCalculation(Double_t xtaz, Double_t ytaz,
                                                   Double_t ztaz,
                                                   Double_t shad_noise)
{
   // Determines whether the center of the triangle in 3-d space
   // given by function parameters:
   //   -xtaz,ytaz,ztaz
   //   is in shadow or not. If yes it return 1 otherwise it returns 0.

   Int_t sx2,sy2,sz1,sz2,skrokx,skroky,xmax,ymax;
   Double_t sx1,sy1;
   Double_t pom1,pom2,sdx1=0,sdx2=0,sdy1,sdy2,spriz;
   switch (fZscale) {
      case kZScaleLog:
         if (ztaz>900) ztaz = 900;
         ztaz = exp(ztaz);
         if (ztaz>32767) ztaz = 32767;
         break;
      case kZScaleSqrt:
         ztaz = ztaz*ztaz;
         break;
   }
   spriz = 0;
   sx1   = xtaz;
   sy1   = ytaz;
   sz1   = (Int_t)ztaz;
   sx2   = fXlight;
   sy2   = fYlight;
   sz2   = fZlight;
   xmax  = fXmax;
   ymax  = fYmax;
   if (sx1!=sx2) {
      if (sx1<sx2) skrokx =  1;
      else         skrokx = -1;
      if (sy1<sy2) skroky =  1;
      else         skroky = -1;
      pom1 = sx2-sx1;
      pom2 = sy2-sy1;
      if (TMath::Abs(pom1)>0.0000001) sdx1 = pom2/pom1;
      pom1 = sx1;
      pom2 = sy1;
      sdy1 = pom2-sdx1*pom1;
      pom1 = sx2-sx1;
      pom2 = sz2-sz1;
      if (TMath::Abs(pom1)>0.0000001) sdx2 = pom2/pom1;
      pom1  = sx1;
      pom2  = sz1;
      sdy2  = pom2-sdx2*pom1;
      spriz = 0;
      pom1  = sx1;
      pom2  = pom1*sdx1+sdy1;
      sy1   = pom2;
      for (;(sx1>(fXmin-skrokx)) && (sx1<(xmax-skrokx)) &&
            (sy1>(fYmin-skroky)) && (sy1<(ymax-skroky)) &&
            (spriz==0);sx1+=skrokx) {
         pom1 = sx1;
         pom2 = pom1*sdx1+sdy1;
         sy1  = pom2+skroky;
         if ((sy1>=fYmin)&&(sy1<=fYmax)) {
            sz1  = (Int_t)(fH2->GetBinContent((Int_t)sx1+1,(Int_t)sy1+1));
            pom2 = pom1*sdx2+sdy2;
            sz2  = (Int_t)(pom2+shad_noise);
            if (sz1>sz2) spriz = 1;
         }
      }
   } else if (sy1!=sy2) {
      if (sy1<sy2) skroky =  1;
      else         skroky = -1;
      pom1 = sy2-sy1;
      pom2 = sz2-sz1;
      if (TMath::Abs(pom1)>0.0000001) sdx2 = pom2/pom1;
      pom1  = sy1;
      pom2  = sz1;
      sdy2  = pom2-sdx2*pom1;
      spriz = 0;
      for (;(sy1>(fYmin-skroky)) && (sy1<(ymax-skroky)) &&
            (spriz==0);sy1+=skroky) {
         sz1  = (Int_t)(fH2->GetBinContent((Int_t)sx1+1,(Int_t)sy1+1));
         pom1 = sy1;
         pom2 = pom1*sdx2+sdy2;
         sz2  = (Int_t)(pom2+shad_noise);
         if (sz1>sz2) spriz=1;
      }
   }
   return(spriz);
}


//______________________________________________________________________________
void TSpectrum2Painter::ColorModel(unsigned ui, unsigned ui1, unsigned ui2,
                                   unsigned ui3)
{
   // This function calculates color for one palette entry
   // given by function parameter ui. Other parameters
   //    -ui1,ui2,ui3
   //    represent r, g, b color components of the basic pen color.

   unsigned long uinc1=0,uinc2=0,uinc3=0,upom,i;
   Double_t a,b,c,d,h,v,s,f;
   Int_t j,iv=ui;
   Double_t red=0,green=0,blue=0;
   if (iv<0)        iv = 0;
   else if (iv>255) iv = 255;
   if (gROOT->GetColor(250+iv)) {
      fNewColorIndex = 250+iv;
      return;
   }
   if (fColorAlg%2==0) {
      a     = fRainbow1Step;
      a     = ui*a;
      a     = ui1+a;
      if (a >= UINT_MAX) uinc1 = UINT_MAX;
      else               uinc1 = (unsigned)a;
      upom  = uinc1%256;
      i     = (uinc1-upom)/256;
      if ((i%2)==0) uinc1 = upom;
      else          uinc1 = 255-upom;
      b     = fRainbow2Step;
      b     = ui*b;
      b     = ui2+b;
      uinc2 = (Int_t)b;
      upom  = uinc2%256;
      i     = (uinc2-upom)/256;
      if ((i%2)==0) uinc2 = upom;
      else          uinc2 = 255-upom;
      c     = fRainbow3Step;
      c     = ui*c;
      c     = ui3+c;
      uinc3 = (Int_t)c;
      upom  = uinc3%256;
      i     = (uinc3-upom)/256;
      if ((i%2)==0) uinc3 = upom;
      else          uinc3 = 255-upom;
      if (fColorAlg==kColorAlgCmySmooth) {
         uinc1 = 255-uinc1;
         uinc2 = 255-uinc2;
         uinc3 = 255-uinc3;
      } else if (fColorAlg==kColorAlgCieSmooth) {
         a = uinc1;
         b = uinc2;
         c = uinc3;
         d = a+b+c;
         if (d!=0) {
            a = a/d;
            b = b/d;
            c = c/d;
         }
         red   = a*255;
         green = b*255;
         blue  = c*255;
         uinc1 = (Int_t)red;
         uinc2 = (Int_t)green;
         uinc3 = (Int_t)blue;
      } else if (fColorAlg==kColorAlgYiqSmooth) {
         a     = uinc1;
         b     = uinc2;
         c     = uinc3;
         a     = a/256;
         b     = b/256;
         c     = c/256;
         red   = a+0.956*b+0.62*c;
         green = a-0.272*b-0.647*c;
         blue  = a-1.108*b+1.705*c;
         if (red>=2)       red   = red-2;
         else if (red>=1)  red   = 2-red;
         if (green<0)      green = -green;
         if (blue>=2)      blue  = blue-2;
         else if (blue>=1) blue  = 2-blue;
         else if (blue<-1) blue  = 2+blue;
         else if (blue<0)  blue  = -blue;
         red   = red*255;
         green = green*255;
         blue  = blue*255;
         uinc1 = (Int_t)red;
         uinc2 = (Int_t)green;
         uinc3 = (Int_t)blue;
      } else if (fColorAlg==kColorAlgHvsSmooth) {
         h = uinc1;
         v = uinc2;
         s = uinc3;
         h = h/256;
         v = v/256;
         s = s/256;
         if (s==0) {
            red   = v;
            green = v;
            blue  = v;
         } else {
            if (h==1.0) h=0;
            h = 6.0*h;
            j = (Int_t)h;
            f = h-j;
            a = v*(1-s);
            b = v*(1-s*f);
            c = v*(1-s*(1-f));
            switch (j) {
               case 0:
                  red   = v;
                  green = c;
                  blue  = a;
                  break;
               case 1:
                  red   = b;
                  green = v;
                  blue  = a;
                  break;
               case 2:
                  red   = a;
                  green = v;
                  blue  = c;
                  break;
               case 3:
                  red   = a;
                  green = b;
                  blue  = v;
                  break;
               case 4:
                  red   = c;
                  green = a;
                  blue  = v;
                  break;
               case 5:
                  red   = v;
                  green = a;
                  blue  = b;
                  break;
            }
         }
         red   = red*255;
         green = green*255;
         blue  = blue*255;
         uinc1 = (Int_t)red;
         uinc2 = (Int_t)green;
         uinc3 = (Int_t)blue;
      }
      ui = uinc1+uinc2*256+uinc3*65536;
   } else if (fColorAlg%2==1) {
      a     = fRainbow1Step;
      a     = ui*a;
      a     = ui1/2+a;
      uinc1 = (Int_t)a;
      uinc1 = uinc1%256;
      b     = fRainbow2Step;
      b     = ui*b;
      b     = ui2/2+b;
      uinc2 = (Int_t)b;
      uinc2 = uinc2%256;
      c     = fRainbow3Step;
      c     = ui*c;
      c     = ui3/2+c;
      uinc3 = (Int_t)c;
      uinc3 = uinc3%256;
      if (fColorAlg==kColorAlgCmyModulo) {
         uinc1 = 255-uinc1;
         uinc2 = 255-uinc2;
         uinc3 = 255-uinc3;
      } else if (fColorAlg==kColorAlgCieModulo) {
         a = uinc1;
         b = uinc2;
         c = uinc3;
         d = a+b+c;
         if (d!=0) {
            a = a/d;
            b = b/d;
            c = c/d;
         }
         red   = a*255;
         green = b*255;
         blue  = c*255;
         uinc1 = (Int_t)red;
         uinc2 = (Int_t)green;
         uinc3 = (Int_t)blue;
      } else if (fColorAlg==kColorAlgYiqModulo) {
         a     = uinc1;
         b     = uinc2;
         c     = uinc3;
         a     = a/256;
         b     = b/256;
         c     = c/256;
         red   = a+0.956*b+0.62*c;
         green = a-0.272*b-0.647*c;
         blue  = a-1.108*b+1.705*c;
         if (red>=2)       red   = red-2;
         else if (red>=1)  red   = red-1;
         if (green<0)      green = 1+green;
         if (blue>=2)      blue  = blue-2;
         else if (blue>=1) blue  = blue-1;
         else if (blue<-1) blue  = 2+blue;
         else if (blue<0)  blue  = 1+blue;
         red   = red*255;
         green = green*255;
         blue  = blue*255;
         uinc1 = (Int_t)red;
         uinc2 = (Int_t)green;
         uinc3 = (Int_t)blue;
      } else if (fColorAlg==kColorAlgHvsModulo) {
         h = uinc1;
         v = uinc2;
         s = uinc3;
         h = h/256;
         v = v/256;
         s = s/256;
         if (s==0) {
            red   = v;
            green = v;
            blue  = v;
         } else {
            if (h==1.0) h = 0;
            h = 6.0*h;
            j = (Int_t)h;
            f = h-j;
            a = v*(1-s);
            b = v*(1-s*f);
            c = v*(1-s*(1-f));
            switch (j) {
               case 0:
                  red   = v;
                  green = c;
                  blue  = a;
                  break;
               case 1:
                  red   = b;
                  green = v;
                  blue  = a;
                  break;
               case 2:
                  red   = a;
                  green = v;
                  blue  = c;
                  break;
               case 3:
                  red   = a;
                  green = b;
                  blue  = v;
                  break;
               case 4:
                  red   = c;
                  green = a;
                  blue  = v;
                  break;
               case 5:
                  red   = v;
                  green = a;
                  blue  = b;
                  break;
            }
         }
         red   = red*255;
         green = green*255;
         blue  = blue*255;
         uinc1 = (Int_t)red;
         uinc2 = (Int_t)green;
         uinc3 = (Int_t)blue;
      }
      ui = uinc1+uinc2*256+uinc3*65536;
   }
   red            = uinc1;
   green          = uinc2;
   blue           = uinc3;
   red            = red/255.0;
   green          = green/255.0;
   blue           = blue/255.0;
   fNewColor      = new TColor(250+iv,red,green,blue);
   fNewColorIndex = 250+iv;
   return;
}


//______________________________________________________________________________
Int_t TSpectrum2Painter::BezC(Int_t i)
{
   // This function is called from BezierBlend function.

   Int_t j,a;
   a = 1;
   for (j=i+1;j<=3;j++) a = a*j;
   for (j=1;j<=3-i;j++) a = a/j;
   return a;
}


//______________________________________________________________________________
Double_t TSpectrum2Painter::BezierBlend(Int_t i,Double_t bezf)
{
   // This function calculates Bezier approximation.

   Int_t j;
   Double_t v;
   v = BezC(i);
   for (j=1;j<=i;j++)   v = v*bezf;
   for (j=1;j<=3-i;j++) v = v*(1-bezf);
   return v;
}


//______________________________________________________________________________
void TSpectrum2Painter::BezierSmoothing(Double_t bezf)
{
   // Calculates screen coordinates of the smoothed point.
   // Parameter bezf changes within the interval 0 to 1 in 0.1 steps.

   Int_t i;
   Double_t b;
   fGbezx = 0;
   fGbezy = 0;
   for (i=0;i<4;i++) {
      b       = BezierBlend(i,bezf);
      fGbezx += fBzX[i]*b;
      fGbezy += fBzY[i]*b;
   }
   return;
}


//______________________________________________________________________________
void TSpectrum2Painter::Envelope(Int_t x1,Int_t y1,Int_t x2,Int_t y2)
{
   // Ensures hidden surface removal.

   Int_t x,y,krok,xold=0,yold=0,prvy,yprv=0;
   Double_t fx,fy,fx1,fy1;
   if (y1<fBy1) y1 = fBy1;
   if (y2<fBy1) y2 = fBy1;
   if (x1==x2) {
      if ((y1>=fEnvelope[x1]) && (y2>=fEnvelope[x1])) {
         if (x1>0) {
            if (y1<=fEnvelope[x1-1]||y2<=fEnvelope[x1-1]) {
               if (y1>fEnvelope[x1-1]) y1 = fEnvelope[x1-1];
               if (y2>fEnvelope[x1-1]) y2 = fEnvelope[x1-1];
               fLine = 2;
               fXs   = x1;
               fYs   = y1;
               fXe   = x2;
               fYe   = y2;
               return;
            }
         }
         if (x1<fBx2) {
            if (y1<=fEnvelope[x1+1]||y2<=fEnvelope[x1+1]) {
               if (y1>fEnvelope[x1+1]) y1 = fEnvelope[x1+1];
               if (y2>fEnvelope[x1+1]) y2 = fEnvelope[x1+1];
               fLine = 2;
               fXs   = x1;
               fYs   = y1;
               fXe   = x2;
               fYe   = y2;
               return;
            }
         }
         fLine=0;
         return;
      }
      if ((y1<fEnvelope[x1]) && (y2<fEnvelope[x1])) {
         fLine = 2;
         fXs   = x1;
         fYs   = y1;
         fXe   = x2;
         fYe   = y2;
         if (y1<y2) fEnvelope[x1] = y1;
         else       fEnvelope[x1] = y2;
         return;
      }
      if (y1<y2) {
         fLine = 2;
         fXs   = x1;
         fYs   = y1;
         fXe   = x1;
         fYe   = fEnvelope[x1];
         fEnvelope[x1] = y1;
         return;
      } else {
         fLine = 2;
         fXs   = x1;
         fYs   = y2;
         fXe   = x1;
         fYe   = fEnvelope[x1];
         fEnvelope[x1] = y2;
         return;
      }
   }
   krok  = (x1<x2)? 1:-1;
   fLine = 0;
   prvy  = 0;
   x     = x1;
   y     = y1;
l1:
   if (y<=fEnvelope[x]) {
      xold = x;
      yold = y;
      if (fLine==0) {
         fLine = 1;
         if (prvy==1) {
            if (yprv<=fEnvelope[x]) fYs = yprv;
            else                    fYs = fEnvelope[x];
            fXs = x;
         } else {
            fXs = x;
            fYs = y;
         }
      }
      if (x!=x2) fEnvelope[x] = y;
   } else {
      prvy = 1;
      yprv = y;
      if (fLine==1) {
         fLine = 2;
         fXe   = xold;
         fYe   = yold;
      }
   }
   if (x1==x2) {
      if (y1!=y2) y += (y1<y2)? +1:-1;
      if (y!=y2) goto l1;
   } else {
      x  += krok;
      fy1 = y2-y1;
      fx1 = x2-x1;
      fx  = x-x1;
      fy  = fy1*fx/fx1;
      y   = (Int_t)(y1+fy);
      if (((x<=x2)&&(x1<x2)) || ((x>=x2)&&(x1>x2))) goto l1;
   }
   return;
}


//______________________________________________________________________________
void TSpectrum2Painter::EnvelopeBars(Int_t x1,Int_t y1,Int_t x2,Int_t y2)
{
   // Ensures hidden surfuce removal for Bars, BarsX and BarsY
   // display modes.

   Int_t x,y,krok,xold=0,yold=0,prvy,xprv,yprv=0;
   Double_t fx,fy,fx1,fy1;
   if (x1==x2) {
      if ((y1>=fEnvelope[x1]) && (y2>=fEnvelope[x1])) {
         fLine = 0;
         return;
      }
      if ((y1<fEnvelope[x1]) && (y2<fEnvelope[x1])) {
         fLine = 2;
         fXs   = x1;
         fYs   = y1;
         fXe   = x2;
         fYe   = y2;
         if (y1<y2) fEnvelope[x1] = y1;
         else       fEnvelope[x1] = y2;
         return;
      }
      if (y1<y2) {
         fLine = 2;
         fXs   = x1;
         fYs   = y1;
         fXe   = x1;
         fYe   = fEnvelope[x1];
         fEnvelope[x1] = y1;
         return;
      } else {
         fLine = 2;
         fXs   = x1;
         fYs   = y2;
         fXe   = x1;
         fYe   = fEnvelope[x1];
         fEnvelope[x1] = y2;
         return;
      }
   }
   krok  = (x1<x2)? 1:-1;
   fLine = 0;
   prvy  = 0;
   x     = x1;
   y     = y1;
l1:
   if (y<=fEnvelope[x]) {
      xold = x;
      yold = y;
      if (fLine==0) {
         fLine = 1;
         if (prvy==1) {
            xprv = x;
            fXs  = xprv;
            fYs  = yprv;
         } else {
            fXs = x;
            fYs = y;
         }
      }
      if (x!=x2) fEnvelope[x] = y;
   } else {
      prvy = 1;
      xprv = x;
      yprv = y;
      if (fLine==1) {
         fLine = 2;
         fXe   = xold;
         fYe   = yold;
      }
   }
   if (x1==x2) {
      if (y1!=y2) y+=(y1<y2)? +1:-1;
      if (y!=y2) goto l1;
   } else {
      x  += krok;
      fy1 = y2-y1;
      fx1 = x2-x1;
      fx  = x-x1;
      fy  = fy1*fx/fx1;
      y   = (Int_t)(y1+fy);
      if (((x<=x2)&&(x1<x2)) || ((x>=x2)&&(x1>x2))) goto l1;
   }
   return;
}


//______________________________________________________________________________
void TSpectrum2Painter::DrawMarker(Int_t x,Int_t y,Int_t w,Int_t h,Int_t type)
{
   // Draws channel mark at the screen coordinates x, y. Width of
   // the mark is w, height is h and the type of the mark is determined by the
   // parameter type.

   TLine *line=new TLine();
   TEllipse *ellipse=new TEllipse();
   line->SetLineColor(fChanmarkColor);
   line->SetLineWidth(1);
   line->SetLineStyle(kPenStyleSolid);
   ellipse->SetLineColor(fChanmarkColor);
   ellipse->SetLineWidth(1);
   ellipse->SetLineStyle(kPenStyleSolid);
   switch (type) {
      case kChannelMarksStyleDot:
         ellipse->SetX1(gPad->PixeltoX(x));
         ellipse->SetY1(gPad->PixeltoY(y)+1);
         ellipse->SetR1(gPad->PixeltoX(w/2));
         ellipse->SetR2(gPad->PixeltoY(h/2));
         ellipse->SetPhimin(0);
         ellipse->SetPhimax(360);
         ellipse->SetTheta(0);
         ellipse->Paint("");
         break;
      case kChannelMarksStyleCross:
         line->PaintLine(gPad->PixeltoX(x-w/2),gPad->PixeltoY(y)+1,
                         gPad->PixeltoX(x+w/2),gPad->PixeltoY(y)+1);
         line->PaintLine(gPad->PixeltoX(x)    ,gPad->PixeltoY(y-h/2)+1,
                         gPad->PixeltoX(x)    ,gPad->PixeltoY(y+h/2+1)+1);
         break;
      case kChannelMarksStyleStar:
         line->PaintLine(gPad->PixeltoX(x-w/2)  ,gPad->PixeltoY(y)+1,
                         gPad->PixeltoX(x+w/2+1),gPad->PixeltoY(y)+1);
         line->PaintLine(gPad->PixeltoX(x)      ,gPad->PixeltoY(y-h/2)+1,
                         gPad->PixeltoX(x)      ,gPad->PixeltoY(y+h/2+1)+1);
         line->PaintLine(gPad->PixeltoX(x-w/2)  ,gPad->PixeltoY(y-h/2)+1,
                         gPad->PixeltoX(x+w/2+1),gPad->PixeltoY(y+h/2+1)+1);
         line->PaintLine(gPad->PixeltoX(x-w/2)  ,gPad->PixeltoY(y+h/2)+1,
                         gPad->PixeltoX(x+w/2+1),gPad->PixeltoY(y-h/2-1)+1);
         break;
      case kChannelMarksStyleRectangle:
         line->PaintLine(gPad->PixeltoX(x-w/2),gPad->PixeltoY(y-h/2)+1,
                         gPad->PixeltoX(x-w/2),gPad->PixeltoY(y+h/2)+1);
         line->PaintLine(gPad->PixeltoX(x-w/2),gPad->PixeltoY(y+h/2)+1,
                         gPad->PixeltoX(x+w/2),gPad->PixeltoY(y+h/2)+1);
         line->PaintLine(gPad->PixeltoX(x+w/2),gPad->PixeltoY(y+h/2)+1,
                         gPad->PixeltoX(x+w/2),gPad->PixeltoY(y-h/2)+1);
         line->PaintLine(gPad->PixeltoX(x+w/2),gPad->PixeltoY(y-h/2)+1,
                         gPad->PixeltoX(x-w/2),gPad->PixeltoY(y-h/2)+1);
         break;
      case kChannelMarksStyleX:
         line->PaintLine(gPad->PixeltoX(x-w/2)  ,gPad->PixeltoY(y-h/2)+1,
                         gPad->PixeltoX(x+w/2+1),gPad->PixeltoY(y+h/2+1)+1);
         line->PaintLine(gPad->PixeltoX(x-w/2)  ,gPad->PixeltoY(y+h/2)+1,
                         gPad->PixeltoX(x+w/2+1),gPad->PixeltoY(y-h/2-1)+1);
         break;
      case kChannelMarksStyleDiamond:
         line->PaintLine(gPad->PixeltoX(x)    ,gPad->PixeltoY(y-h/2)+1,
                         gPad->PixeltoX(x-w/2),gPad->PixeltoY(y)+1);
         line->PaintLine(gPad->PixeltoX(x-w/2),gPad->PixeltoY(y)+1,
                         gPad->PixeltoX(x)    ,gPad->PixeltoY(y+h/2)+1);
         line->PaintLine(gPad->PixeltoX(x)    ,gPad->PixeltoY(y+h/2)+1,
                         gPad->PixeltoX(x+w/2),gPad->PixeltoY(y)+1);
         line->PaintLine(gPad->PixeltoX(x+w/2),gPad->PixeltoY(y)+1,
                         gPad->PixeltoX(x)    ,gPad->PixeltoY(y-h/2)+1);
         break;
      case kChannelMarksStyleTriangle:
         line->PaintLine(gPad->PixeltoX(x)    ,gPad->PixeltoY(y-h/2)+1,
                         gPad->PixeltoX(x-w/2),gPad->PixeltoY(y+h/2)+1);
         line->PaintLine(gPad->PixeltoX(x-w/2),gPad->PixeltoY(y+h/2)+1,
                         gPad->PixeltoX(x+w/2),gPad->PixeltoY(y+h/2)+1);
         line->PaintLine(gPad->PixeltoX(x+w/2),gPad->PixeltoY(y+h/2)+1,
                         gPad->PixeltoX(x)    ,gPad->PixeltoY(y-h/2)+1);
         break;
   }
   delete line;
   delete ellipse;
   return;
}


//______________________________________________________________________________
void TSpectrum2Painter::Slice(Double_t xr, Double_t yr, Double_t xs,
                              Double_t ys, TLine *line)
{
   // Calculates screen coordinates of the line given by two
   // nodes for contours display mode. The line is given by two points
   // xr, yr, xs, ys. Finally it draws the line.

   Int_t krok,xi,yi,xj,yj,a,b,as,bs,pr,ae,be;
   Double_t fx,fy,fx1,fy1;
   xi = (Int_t)(fTxx*(xr-fXmin)/fKx+fTxy*(yr-fYmin)/fKy+fVx);
   xj = (Int_t)(fTxx*(xs-fXmin)/fKx+fTxy*(ys-fYmin)/fKy+fVx);
   yi = (Int_t)(fTyx*(xr-fXmin)/fKx+fTyy*(yr-fYmin)/fKy+fTyz*fZ+fVy);
   yj = (Int_t)(fTyx*(xs-fXmin)/fKx+fTyy*(ys-fYmin)/fKy+fTyz*fZ+fVy);
   as = xi;
   bs = yi;
   ae = xj;
   be = yj;
   a  = xi;
   b  = yi;
   pr = 0;
   krok = (xi<xj)? 1:-1;
l1:
   if (b<=fEnvelope[a]) {
      fEnvelopeContour[a] = b;
      if (pr==0) {
         pr = 1;
         as = a;
         bs = b;
      }
   } else {
      if (pr==1) {
         pr = 2;
         ae = a;
         be = b;
      }
   }
   if (xi==xj) {
      if (yi!=yj) b += (yi<yj)? +1:-1;
      if (b!=yj)  goto l1;
   } else {
      a  += krok;
      fy1 = yj-yi;
      fx1 = xj-xi;
      fx  = a-xi;
      fy  = fy1*fx/fx1;
      b   = (Int_t)(yi+fy);
      if (a!=xj) goto l1;
   }
   if (pr!=0) {
      if (pr==1) {
         ae = xj;
         be = yj;
      }
      line->PaintLine(gPad->PixeltoX(as),gPad->PixeltoY(bs)+1,
                      gPad->PixeltoX(ae),gPad->PixeltoY(be)+1);
   }
   return;
}


//______________________________________________________________________________
void TSpectrum2Painter::CopyEnvelope(Double_t xr, Double_t xs, Double_t yr,
                                     Double_t ys)
{
   // Copies envelope vector, which ensures hidden surface removal for the
   // contours display mode.

   Int_t xi,xj,a;
   xi = (Int_t)(fTxx*(xr-fXmin)/fKx+fTxy*(yr-fYmin)/fKy+fVx);
   xj = (Int_t)(fTxx*(xs-fXmin)/fKx+fTxy*(ys-fYmin)/fKy+fVx);
   if (xi<xj) {
      for (a=xi;a<=xj;a++) {
         if (fEnvelopeContour[a]<fEnvelope[a])
            fEnvelope[a] = fEnvelopeContour[a];
         fEnvelopeContour[a] = fBy2;
      }
   } else if (xj<xi) {
      for (a=xj;a<=xi;a++) {
         if (fEnvelopeContour[a]<fEnvelope[a])
            fEnvelope[a] = fEnvelopeContour[a];
         fEnvelopeContour[a] = fBy2;
      }
   }
   return;
}


//______________________________________________________________________________
void TSpectrum2Painter::Paint(Option_t * /*option*/)
{
   // Paints histogram according to preset parameters.
//Begin_Html <!--
/* -->
<h1>Visualization</h1>
<h2><i>Goal: to present 2-dimensional spectra in suitable visual form</i></h2>
This package has several display mode groups and display modes, which can be
employed for the presentation of 2-dimensional histograms
<h2><i>Display modes groups:</i></h2>
<ul>
<p><li><b>kModeGroupSimple</b>      - it covers simple display modes using one
                                      color only
<p><li><b>kModeGroupLight</b>       - in this group the shading is carried out
                                      according to the position of the fictive
                                      light source
<p><li><b>kModeGroupHeight</b>      - in this group the shading is carried out
                                      according to the channel contents
<p><li><b>kModeGroupLightHeight</b> - combination of two previous shading
                                      algorithms. One can control the weight
                                      between both algorithms.
</ul>
<h2><i>Display modes:</i></h2>
<ul>
<p><li><b>kDisplayModePoints, </b>
<p><li><b>kDisplayModeGrid, </b>
<p><li><b>kDisplayModeContours,</b>
<p><li><b>kDisplayModeBars,</b>
<p><li><b>kDisplayModeLinesX,</b>
<p><li><b>kDisplayModeLinesY,</b>
<p><li><b>kDisplayModeBarsX,</b>
<p><li><b>kDisplayModeBarsY,</b>
<p><li><b>kDisplayModeNeedles,</b>
<p><li><b>kDisplayModeSurface,</b>
<p><li><b>kDisplayModeTriangles.</b>
</ul>
one can combine the above given modes groups and display modes. The meaningful
combinations (denoted by x) are given in the next table.
<p>
<center>
<table border=1 cellspacing=0 cellpadding=0>
<tr><th></th><th>Simple</th><th>Light</th><th>Height</th><th>Light-Height</th>
</tr>
<tr><th>Points   </th><th>X</th><th>X</th><th>X</th><th>X</th></tr>
<tr><th>Grid     </th><th>X</th><th>X</th><th>X</th><th>X</th></tr>
<tr><th>Contours </th><th>X</th><th>-</th><th>X</th><th>-</th></tr>
<tr><th>Bars     </th><th>X</th><th>-</th><th>X</th><th>-</th></tr>
<tr><th>LinesX   </th><th>X</th><th>X</th><th>X</th><th>X</th></tr>
<tr><th>LinesY   </th><th>X</th><th>X</th><th>X</th><th>X</th></tr>
<tr><th>BarsX    </th><th>X</th><th>-</th><th>X</th><th>-</th></tr>
<tr><th>BarsY    </th><th>X</th><th>-</th><th>X</th><th>-</th></tr>
<tr><th>Needles  </th><th>X</th><th>-</th><th>-</th><th>-</th></tr>
<tr><th>Surface  </th><th>-</th><th>X</th><th>X</th><th>X</th></tr>
<tr><th>Triangles</th><th>X</th><th>X</th><th>X</th><th>X</th></tr>
</table></center>
<h2><i>Function:</i></h2>
<h2>void TSpectrum2Painter::SetDisplayMode (Int_t modeGroup, Int_t displayMode)</h2>
<p>
This function controls the display mode group and display mode of the
histogram drawing. To illustrate the possible effects of the various display
modes we introduce a set of examples. Default values:
<ul>
<p><li> <b>modeGroup = kModeGroupLightHeight </b>
<p><li> <b>displayMode = kDisplayModeSurface </b>
</ul>
<p><center><img src="gif/spectrumpainter001.jpg"></center>
<p>Simple modes group, display mode = points, 256 x 256 channels.
<p><center><img src="gif/spectrumpainter002.jpg"></center>
<p>Simple modes group, display mode = grid, 64 x 64 channels.
<p><center><img src="gif/spectrumpainter003.jpg"></center>
<p>Simple modes group, display mode = contours, 64 x 64 channels.
<p><center><img src="gif/spectrumpainter004.jpg"></center>
<p>Simple modes group, display mode = bars, 64 x 64 channels.
<p><center><img src="gif/spectrumpainter005.jpg"></center>
<p>Simple modes group, display mode = linesX, 64 x 64 channels.
<p><center><img src="gif/spectrumpainter006.jpg"></center>
<p>Simple modes group, display mode = linesY, 64 x 64 channels.
<p><center><img src="gif/spectrumpainter007.jpg"></center>
<p>Simple modes group, display mode = barsX, 64 x 64 channels.
<p><center><img src="gif/spectrumpainter008.jpg"></center>
<p>Simple modes group, display mode = barsY, 64 x 64 channels.
<p><center><img src="gif/spectrumpainter009.jpg"></center>
<p>Simple modes group, display mode = needles, 64 x 64 channels.
<p><center><img src="gif/spectrumpainter010.jpg"></center>
<p>Simple modes group, display mode = triangles, 64 x 64 channels.
<p><center><img src="gif/spectrumpainter011.jpg"></center>
<p>Light modes group, display mode = points, 256 x 256 channels.
<p><center><img src="gif/spectrumpainter012.jpg"></center>
<p>Light modes group, display mode = grid, 256 x 256 channels.
<p><center><img src="gif/spectrumpainter013.jpg"></center>
<p>Light modes group, display mode = surface, 64 x 64 channels.
<p><center><img src="gif/spectrumpainter014.jpg"></center>
<p>Light modes group, display mode = triangles, 64 x 64 channels.
<p><center><img src="gif/spectrumpainter015.jpg"></center>
<p>Height modes group, display mode = points, 256 x 256 channels.
<p><center><img src="gif/spectrumpainter016.jpg"></center>
<p>Height modes group, display mode = grid, 256 x 256 channels.
<p><center><img src="gif/spectrumpainter017.jpg"></center>
<p>Height modes group, display mode = contours, 64 x 64 channels.
<p><center><img src="gif/spectrumpainter018.jpg"></center>
<p>Height modes group, display mode = bars, 64 x 64 channels.
<p><center><img src="gif/spectrumpainter019.jpg"></center>
<p>Height modes group, display mode = surface, 64 x 64 channels.
<p><center><img src="gif/spectrumpainter020.jpg"></center>
<p>Height modes group, display mode = triangles, 64 x 64 channels.
<p><center><img src="gif/spectrumpainter021.jpg"></center>
<p>
Light - height modes group, display mode = surface, 64 x 64 channels. The weight
between both shading algorithms is set to 0.5. One can observe the influence of
both shadings.
<h2><i>Function:</i></h2>
<h2>TSpectrum2Painter::SetPenAttr(Int_t color,Int_t style,Int_t width)</h2>
<p>
Using this function one can change pen color, pen style and pen width.
Possible pen styles are:
<ul>
<p><li><b> kPenStyleSolid,</b>
<p><li><b> kPenStyleDash,</b>
<p><li><b> kPenStyleDot,</b>
<p><li><b> kPenStyleDashDot.</b>
</ul>
<p>Default values:
<ul>
<p><li><b> color = kBlack</b>
<p><li><b> style = kPenStyleSolid</b>
<p><li><b> width = 1</b>
</ul>
<p><center><img src="gif/spectrumpainter022.jpg"></center>
<p>Simple modes group, display mode = linesX, 64 x 64 channels. Pen width = 3.
<h2><i>Function:</i></h2>
<h2>TSpectrum2Painter::SetNodes(Int_t nodesx,Int_t nodesy)</h2>
<p>Sometimes the displayed region is rather large. When displaying all channels
pictures become very dense and complicated. It is very difficult to understand
overall shape of the data. Therefore in the package we have implemented the
possibility to change the density of displayed channels. Only channels
coinciding with given nodes are displayed. In the next figure we introduce the
example of the above presented spectrum with number of nodes set to 64x64.
<p>Default values:
<ul>
<p><li><b> nodesx = Xmax-Xmin+1</b>
<p><li><b> nodesy = Ymax-Ymin+1</b>
</ul>
<p><center><img src="gif/spectrumpainter023.jpg"></center>
<p>Simple modes group, display mode = grid, 256 x 256 channels.
Number of nodes is 64x64.
<h2><i>Function:</i></h2>
<h2>void TSpectrum2Painter::SetAngles (Int_t alpha,Int_t beta, Int_t view)</h2>
<p>One can change the angles of the position of 3-d space and to rotate the
space. Alpha parameter defines the angle between bottom horizontal screen line
and the displayed space on the right side of the picture and beta on the left
side, respectively. One can rotate the 3-d space around vertical axis going
through the center of it employing the view parameter.
Allowed values are 0, 90, 180 and 270 degrees respectively.
<p>Default values:
<ul>
<p><li><b> alpha = 20</b>
<p><li><b> beta = 60</b>
<p><li><b> view = 0</b>
</ul>
<p><center><img src="gif/spectrumpainter024.jpg"></center>
<p>Light modes group, display mode = surface, 256 x 256 channels. Angles are
set as follows: alpha=40, beta=30, view=0.
<p><center><img src="gif/spectrumpainter025.jpg"></center>
<p>Light modes group, display mode = surface, 256 x 256 channels. Angles are
set as follows: alpha=30, beta=30, view=90.
<h2><i>Function:</i></h2>
<h2>TSpectrum2Painter::SetZScale(Int_t scale)</h2>
<p>One can change the scale of z-axis. Possible values are:
<ul>
<p><li><b> kZScaleLinear</b>
<p><li><b> kZScaleLog</b>
<p><li><b> kZScaleSqrt</b>
</ul>
<p>Default value is:
<ul>
<p><li><b> scale = kZScaleLinear</b>
</ul>
<p><center><img src="gif/spectrumpainter026.jpg"></center>
<p>Height modes group, display mode = surface, 64 x 64 channels, log scale.
<h2><i>Function:</i></h2>
<h2>TSpectrum2Painter::SetColorIncrements(Double_t r,Double_t g,Double_t b);</h2>
<p> For sophisticated shading (in <b>kModeGroupLight, kModeGroupHeight</b>
and <b>kModeGroupLightHeight</b> display modes groups) the color palette starts
from the basic pen color (see SetPenAttr function). There is a predefined number
of color levels (256). Color in every level is calculated by adding the
increments of the r, g, b components to the previous level. Using this function
one can change the color increments between two neighboring color levels. The
function does not apply for <b>kModeGroupSimple</b> display modes group.
Default values: <b>r=1, g=1, b=1;</b>
<p><center><img src="gif/spectrumpainter027.jpg"></center>
<p>Light modes group, display mode = surface, 64 x 64 channels, color increments
r=1, g=2, b=3.
<p><center><img src="gif/spectrumpainter028.jpg"></center>
<p>Light modes group, display mode = surface, 64 x 64 channels, color
increments r=4, g=2, b=1.
<h2><i>Function:</i></h2>
<h2>TSpectrum2Painter::SetColorAlgorithm(Int_t colorAlgorithm)</h2>
<p>To define the colors one can employ one of the following color algorithms
(rgb, cmy, cie, yiq, hvs models [1], [2]). When the level of a component
achieves the limit value one can choose either smooth transition (by decreasing
the limit value) or sharp - modulo transition (continuing with 0 value). This
makes possible to realize various visual effects. One can choose from the
following set of the algorithms:
<ul>
<p><li><b> kColorAlgRgbSmooth </b>
<p><li><b> kColorAlgRgbModulo </b>
<p><li><b> kColorAlgCmySmooth </b>
<p><li><b> kColorAlgCmyModulo </b>
<p><li><b> kColorAlgCieSmooth </b>
<p><li><b> kColorAlgCieModulo </b>
<p><li><b> kColorAlgYiqSmooth </b>
<p><li><b> kColorAlgYiqModulo </b>
<p><li><b> kColorAlgHvsSmooth </b>
<p><li><b> kColorAlgHvsModulo </b>
</ul>
<p>The function does not apply for <b>kModeGroupSimple</b> display modes group.
Default value is:
<ul>
<p><li><b> colorAlgorithm = kColorAlgRgbSmooth</b>
</ul>
<p><center><img src="gif/spectrumpainter029.jpg"></center>
<p>Light modes group, display mode = surface, 64 x 64 channels, color algorithm
is cmy smooth.
<p><center><img src="gif/spectrumpainter030.jpg"></center>
<p>Light modes group, display mode = surface, 64 x 64 channels, color algorithm
is hvs smooth.
<p><center><img src="gif/spectrumpainter031.jpg"></center>
<p>Light modes group, display mode = surface, 64 x 64 channels, color algorithm
is yiq smooth.
<p><center><img src="gif/spectrumpainter032.jpg"></center>
<p>Light modes group, display mode = surface, 64 x 64 channels, color algorithm
is rgb modulo.
<p><center><img src="gif/spectrumpainter033.jpg"></center>
<p>Height modes group, display mode = surface, 256 x 256 channels, color
algorithm is rgb modulo, increments r=5, g=5, b=5, angles alpha=0, beta=90,
view=0.
<h2><i>Function:</i></h2>
<h2>TSpectrum2Painter::SetLightPosition(Int_t x, Int_t y, Int_t z)</h2>
<p>In <b>kModeGroupLight</b> and <b>kModeGroupLightHeight</b> display modes
groups the color palette is calculated according to the fictive light source
position in 3-d space. Using this function one can change the position of the
source and thus to achieve various graphical effects. The function does not
apply for <b>kModeGroupSimple</b> and<b> kModeGroupHeight </b>display modes
groups. Default values are: <b>x=1000, y=1000, z=1000.</b>
<p><center><img src="gif/spectrumpainter034.jpg"></center>
<p>Light modes group, display mode = surface, 64 x 64 channels. Position of the
light source was set to x=0, y=1000, z=1000.
<h2><i>Function:</i></h2>
<h2>TSpectrum2Painter::SetShading(Int_t shading,Int_t shadow)</h2>
<p>Surface of the picture is composed of triangles. If desired the edges of the
neighboring triangles can be smoothed (shaded). If desired the display of the
shadow can be painted as well. The function does not apply for
<b>kModeGroupSimple</b> display modes group.
<p>Possible values for shading are:
<ul>
<p><li><b> kNotShaded</b>
<p><li><b> kShaded.</b>
</ul>
<p>Possible values for shadow are:
<ul>
<p><li><b> kShadowsNotPainted</b>
<p><li><b> kShadowsPainted</b>
</ul>
<p>Default values:
<ul>
<p><li><b> shading = kShaded</b>
<p><li><b> shadow = kShadowsNotPainted</b>
</ul>
<p><center><img src="gif/spectrumpainter035.jpg"></center>
<p>Light modes group, display mode = surface, 64 x 64 channels, not shaded.
<p><center><img src="gif/spectrumpainter036.jpg"></center>
<p>Light modes group, display mode = surface, 64 x 64 channels, shaded, with
shadow.
<h2><i>Function:</i></h2>
<h2>TSpectrum2Painter::SetBezier(Int_t bezier)</h2>
<p>For kModeGroupSimple display modes group and for <b>kDisplayModeGrid,
kDisplayModeLinesX</b> >and <b>kDisplayModeLinesY</b> display modes one
can smooth data using Bezier smoothing algorithm. The function does not apply
for other display modes groups and display modes. Possible values are:
<ul>
<p><li><b> kNoBezierInterpol</b>
<p><li><b> kBezierInterpol</b>
</ul>
<p>Default value is:
<ul>
<p><li><b> bezier = kNoBezierInterpol.</b>
</ul>
<p><center><img src="gif/spectrumpainter005.jpg"></center>
<p>Simple modes group, display mode = linesX, 64 x 64 channels with Bezier
smoothing.
<h2><i>Function:</i></h2>
<h2>TSpectrum2Painter::SetContourWidth(Int_t width)</h2>
<p>This function applies only for <b>kDisplayModeContours</b> display mode.
One can change the width between horizontal slices and thus their density.
Default value: <b>width=50.</b>
<p><center><img src="gif/spectrumpainter037.jpg"></center>
<p>Simple modes group, display mode = contours, 64 x 64 channels. Width between
slices was set to 30.
<h2><i>Function:</i></h2>
<h2>TSpectrum2Painter::SetLightHeightWeight(Double_t weight)</h2>
<p>For <b>kModeGroupLightHeight</b> display modes group one can change the
weight between both shading algorithm. The function does not apply for other
display modes groups. Default value is: <b>weight=0.5.</b>
<p><center><img src="gif/spectrumpainter038.jpg"></center>
<p>Light - height modes group, display mode = surface, 64 x 64 channels.
The weight between both shading algorithms is set to 0.7.
<h2><i>Function:</i></h2>
<h2>TSpectrum2Painter::SetChanMarks(Int_t enable,Int_t color,Int_t width,Int_t height,Int_t style)</h2>
In addition to the surface drawn using any above given algorithm one can display
channel marks. One can control the color as well as the width, height
(in pixels) and the style of the marks. The parameter enable can be set to:
<ul>
<p><li> <b>kChannelMarksNotDrawn</b>
<p><li> <b>kChannelMarksDrawn.</b>
</ul>
The possible styles can be chosen from the set:
<ul>
<p><li><b> kChannelMarksStyleDot</b>
<p><li><b> kChannelMarksStyleCross</b>
<p><li><b> kChannelMarksStyleStar</b>
<p><li><b> kChannelMarksStyleRectangle</b>
<p><li><b> kChannelMarksStyleX</b>
<p><li><b> kChannelMarksStyleDiamond</b>
<p><li><b> kChannelMarksStyleTriangle.</b>
</ul>
<p><center><img src="gif/spectrumpainter039.jpg"></center>
<p><b>Light modes group, display mode = surface, 64 x 64 channels,
with marks (red circles).</b></p>
<h2><i>Function:</i></h2>
<h2>TSpectrum2Painter::SetChanGrid(Int_t enable,Int_t color)</h2>
<p>In addition to the surface drawn using any above given algorithm one can
display grid using the color parameter. The parameter enable can be set to:
<ul>
<p><li><b> kChannelGridNotDrawn</b>
<p><li><b> kChannelGridDrawn.</b>
</ul>
<p><center><img src="gif/spectrumpainter040.jpg"></center>
<p>Height modes group, display mode = surface, 64 x 64 channels, with blue grid.
<p><center><img src="gif/spectrumpainter041.jpg"></center>
<p>Height modes group, display mode = surface, 64 x 64 channels, with marks
(red circles) and blue grid.
<h2><i>References:</i></h2>
<p> [1] Morhá&#269; M., Kliman J., Matoušek V., Turzo I.,
Sophisticated visualization algorithms for analysis of multidimensional
experimental nuclear data, Acta Physica Slovaca 54 (2004) 385.
<p> [2] D. Hearn, M. P. Baker: Computer Graphics, Prentice Hall International,
Inc.  1994.
<h2>Script:</h2>
<pre>
// Example to draw source spectrum (class TSpectrum2Painter).
// To execute this example, do
// root &gt; .x VisA.C
#include &quot;TSpectrum2Painter.h&quot;

void VisA() {
   TFile *f = new TFile(&quot;TSpectrum2.root&quot;);
   TH2F *graph=(TH2F*) f-&gt;Get(&quot;graph2;1&quot;);
   TCanvas *Graph2 = new TCanvas(&quot;Graph2&quot;,&quot;Illustration of 2D graphics&quot;,10,10,1000,700);
   graph-&gt;Draw(&quot;SPEC&quot;);
}
</pre>
<!-- */
// --> End_Html

   Int_t turni,turnj,w1,w2,x,y;
   Int_t q1=0,q2=0,qv=0,smer=0,flag=0,i=0,j=0,x1=0,y1=0,x2=0,y2=0,x3=0,y3=0,x4=0,y4=0,uhl=0,xp1=0,yp1=0,xp2=0,yp2=0;
   Int_t ix5,iy5,x6,y6,x7,y7,y8,x1d,y1d,x2d=0,y2d=0;
   Int_t i1=0,i2=0,i3=0,i4=0,j1=0,j2=0,j3=0,j4=0;
   Int_t s1=0,s2=0,s3=0,s4=0,t1=0,t2=0,t3=0,t4=0;
   Double_t dx1,dx2,dx3,dx4,dy1,dy2,dy3,dy4,z1,z2,z3,z4,zl,zh;
   Double_t xa,xb=0,ya,yb=0,x5=0,y5=0;
   Double_t da=0,db=0,dc=0,dd=0,xtaz,ytaz,ztaz,v,shad_noise;
   Int_t iv=0,ekv,stvor,sx1,sx2,sx3,sx4,sx5,sy1,sy2,sy3,sy4,sy5;
   Double_t pom1,pom2,sdx1,sdy1,sdx2=0,sdy2,sdx3,sdy3,sdy4,spriz;
   Int_t sr1=0,sr2=0,sr3=0,sr4=0,sr5=0,sr6=0,sr7=0,sr8=0;
   Int_t tr1=0,tr2=0,tr3=0,tr4=0,tr5=0,tr6=0,tr7=0,tr8=0;
   Int_t il,iv1=0,iv2=0,iv3=0,iv4=0;
   Double_t v1=0,v2=0,v3=0,v4=0,dxr1,dxr2,dyr1,dyr2,zr1,zr2,bezf;
   Double_t dcount_reg,z1l,z2l,z3l,z4l,sdx2p,sdy2p,dap,dbp,dcp,ddp;
   Int_t sx1p,sy1p,sx3p,uip=0;
   Double_t bezx1,bezy1,bezx2,bezy2;
   Double_t p000x,p000y,p100x,p100y,p010x,p010y,p110x,p110y;
   Double_t p001x,p001y,p101x,p101y,p011x,p011y,p111x,p111y;
   Int_t ibezx1=0,ibezy1=0,ibezx2,ibezy2;
   unsigned ui1,ui2,ui3;
   Double_t fi,alfa,beta,x3max,y3max,mul,movx,movy;
   Double_t xmin,xmax,ymin,ymax,zmin,zmax,mx,my,mz;
   Double_t mxx,mxy,myx,myy,myz,px,py,kx,ky;
   Double_t bxl,bxh,byl,byh,xd,yd,a,b,rotx,roty;
   TLine  *line = new TLine();
   TBox   *box  = new TBox();
   TColor *pen_col;
   pen_col = (TColor*)(gROOT->GetListOfColors()->At(fPenColor));
   ui1 = (Int_t)(256*pen_col->GetRed());
   ui2 = (Int_t)(256*pen_col->GetGreen());
   ui3 = (Int_t)(256*pen_col->GetBlue());

   if (fBx2>=fMaximumXScreenResolution) {
      printf("The canvas size exceed the maximum X screen resolution.\n");
      printf("Use the option bf() to increase the buffer size (it should be greater than %d).\n",fBx2);
      return;
   }

   for (i=fBx1;i<fBx2;i++) {
      fEnvelope[i]        = fBy2;
      fEnvelopeContour[i] = fBy2;
   }

//   gPad->Range(0, 0, 1 ,1);

   // Set the histogram's parameters.
   fBx1      = gPad->XtoPixel(0.1);
   fBx2      = gPad->XtoPixel(0.99);
   fBy1      = gPad->YtoPixel(0.99);
   fBy2      = gPad->YtoPixel(0.05);
   fXmin     = fH2->GetXaxis()->GetFirst();
   fXmax     = fH2->GetXaxis()->GetLast();
   fYmin     = fH2->GetYaxis()->GetFirst();
   fYmax     = fH2->GetYaxis()->GetLast();
   fZmax     = fH2->GetMaximum();
   fZmin     = fH2->GetMinimum();

   // Calculation of display parameters.
   xmin  = fXmin;
   xmax  = fXmax;
   ymin  = fYmin;
   ymax  = fYmax;
   zmin  = fZmin;
   zmax  = fZmax;
   xd    = (xmax-xmin)/2;
   yd    = (ymax-ymin)/2;
   a     = (xmax+xmin)/2;
   b     = (ymax+ymin)/2;
   fi    = (fViewAngle*3.1415927)/180;
   alfa  = (fAlpha*3.1415927)/180;
   beta  = (fBeta*3.1415927)/180;
   rotx  = (-1)*a*cos(fi)+b*sin(fi)+xd*TMath::Abs(cos(fi))+yd*TMath::Abs(sin(fi));
   roty  = (-1)*a*sin(fi)-b*cos(fi)+xd*TMath::Abs(sin(fi))+yd*TMath::Abs(cos(fi));
   x3max = (xmax-xmin)*TMath::Abs(cos(fi))+(ymax-ymin)*TMath::Abs(sin(fi));
   y3max = (xmax-xmin)*TMath::Abs(sin(fi))+(ymax-ymin)*TMath::Abs(cos(fi));
   bxl   = fBx1;
   bxh   = fBx2;
   byl   = fBy1;
   byh   = fBy2;
   mx    = (bxh-bxl)/(x3max*(cos(alfa)+cos(beta)));
   my    = (bxh-bxl)/(y3max*(cos(alfa)+cos(beta)));
   mul   = (byh-byl)/(bxh-bxl);
   movx  = bxl+my*cos(alfa)*y3max;
   mxx   = mx*cos(beta)*cos(fi)-my*cos(alfa)*sin(fi);
   mxy   = (-1)*mx*cos(beta)*sin(fi)-my*cos(alfa)*cos(fi);
   myx   = mul*(mx*sin(beta)*cos(fi)+my*sin(alfa)*sin(fi));
   myy   = mul*((-1)*mx*sin(beta)*sin(fi)+my*sin(alfa)*cos(fi));
   px    = rotx*mx*cos(beta)-roty*my*cos(alfa)+movx;
   kx    = (xmax-xmin)/(fNodesx-1);
   ky    = (ymax-ymin)/(fNodesy-1);
   fKx   = kx;
   fKy   = ky;
   fMxx  = mxx;
   fMxy  = mxy;
   fMyx  = myx;
   fMyy  = myy;
   fTxx  = mxx*kx;
   fTxy  = mxy*ky;
   fTyx  = myx*kx;
   fTyy  = myy*ky;
   fVx   = mxx*xmin+mxy*ymin+px;
   if (fZscale==kZScaleLinear) {
      mz     = (bxh-bxl)*(cos(alfa)+cos(beta)-sin(alfa)-sin(beta));
      mz     = mz/((zmax-zmin)*(cos(alfa)+cos(beta)));
      movy   = byl+mul*mz*zmax;
      myz    = (-1)*mz*mul;
      py     = mul*(rotx*mx*sin(beta)+roty*my*sin(alfa))+movy;
      fTyz   = myz;
      fVy    = myx*xmin+myy*ymin+py;
      fNuSli = (zmax-zmin)/(Double_t)fContWidth;
   } else if (fZscale==kZScaleLog) {
      if (zmin>=1) zmin = log(zmin);
      else         zmin = 0;
      if (zmax>=1) zmax = log(zmax);
      else         zmax = 0;
      if ((zmax-zmin)<0.000001) zmax = zmin+0.000001;
      mz     = (bxh-bxl)*(cos(alfa)+cos(beta)-sin(alfa)-sin(beta));
      mz     = mz/((zmax-zmin)*(cos(alfa)+cos(beta)));
      movy   = byl+mul*mz*zmax;
      myz    = (-1)*mz*mul;
      py     = mul*(rotx*mx*sin(beta)+roty*my*sin(alfa))+movy;
      fTyz   = myz;
      fVy    = myx*xmin+myy*ymin+py;
      fNuSli = (zmax-zmin)/(Double_t)fContWidth;
   } else if (fZscale==kZScaleSqrt) {
      if (zmin>=1) zmin = sqrt(zmin);
      else         zmin = 0;
      if (zmax>=1) zmax = sqrt(zmax);
      else         zmax = 0;
      if ((zmax-zmin)<0.000001) zmax = zmin+0.000001;
      mz     = (bxh-bxl)*(cos(alfa)+cos(beta)-sin(alfa)-sin(beta));
      mz     = mz/((zmax-zmin)*(cos(alfa)+cos(beta)));
      movy   = byl+mul*mz*zmax;
      myz    = (-1)*mz*mul;
      py     = mul*(rotx*mx*sin(beta)+roty*my*sin(alfa))+movy;
      fTyz   = myz;
      fVy    = myx*xmin+myy*ymin+py;
      fNuSli = (zmax-zmin)/(Double_t)fContWidth;
   }

   // End of calculations of display parameters.
   dcount_reg=fContWidth;
   switch (fZscale) {
      case kZScaleLog:
         dcount_reg=log(dcount_reg);
         break;
      case kZScaleSqrt:
         dcount_reg=sqrt(dcount_reg);
         break;
   }
   shad_noise  = fZmax;
   shad_noise /= 100.;
   w1          = fNodesx-1;
   w2          = fNodesy-1;

   // Drawing axis in backplanes.
   Transform(0,0,-1);
   p000x = gPad->PixeltoX(fXt);
   p000y = gPad->PixeltoY(fYt)+1;
   Transform(w1,0,-1);
   p100x = gPad->PixeltoX(fXt);
   p100y = gPad->PixeltoY(fYt)+1;
   Transform(0,w2,-1);
   p010x = gPad->PixeltoX(fXt);
   p010y = gPad->PixeltoY(fYt)+1;
   Transform(w1,w2,-1);
   p110x = gPad->PixeltoX(fXt);
   p110y = gPad->PixeltoY(fYt)+1;
   fZPresetValue = fZmax;
   Transform(0,0,-2);
   p001x = gPad->PixeltoX(fXt);
   p001y = gPad->PixeltoY(fYt)+1;
   Transform(w1,0,-2);
   p101x = gPad->PixeltoX(fXt);
   p101y = gPad->PixeltoY(fYt)+1;
   Transform(0,w2,-2);
   p011x = gPad->PixeltoX(fXt);
   p011y = gPad->PixeltoY(fYt)+1;
   Transform(w1,w2,-2);
   p111x = gPad->PixeltoX(fXt);
   p111y = gPad->PixeltoY(fYt)+1;
   Double_t bmin, bmax, binLow, binHigh, binWidth;
   Double_t axisLevel, gridDist, gridY1, gridY2;
   Int_t ndivx = 0, ndivy, ndivz, nbins;
   TGaxis *axis  = new TGaxis();
   TGaxis *xaxis = new TGaxis();
   TGaxis *yaxis = new TGaxis();
   TGaxis *zaxis = new TGaxis();
   line->SetLineStyle(kPenStyleDot);
   if (fViewAngle==0) {
      axis->PaintAxis(p000x, p000y, p100x, p100y, bmin, bmax, ndivx, "");
      axis->PaintAxis(p000x, p000y, p010x, p010y, bmin, bmax, ndivx, "");
      if(fAlpha+fBeta<90)
         axis->PaintAxis(p000x, p000y, p001x, p001y, bmin, bmax, ndivx, "");
      if(fAlpha+fBeta<90)
         axis->PaintAxis(p100x, p100y, p101x, p101y, bmin, bmax, ndivx, "");
      axis->PaintAxis(p101x, p101y, p001x, p001y, bmin, bmax, ndivx, "");
      axis->PaintAxis(p001x, p001y, p011x, p011y, bmin, bmax, ndivx, "");
      if (fZscale==kZScaleLinear) {
         bmin  = fZmin;
         bmax  = fZmax;
         ndivz = 10;
         THLimitsFinder::Optimize(bmin, bmax, ndivz, binLow, binHigh,
                                  nbins, binWidth, " ");
         for (i = 0; i < nbins + 1; i++) {
            axisLevel = binLow+i*binWidth;
            gridDist  = (axisLevel-bmin)*(p001y-p000y)/(bmax-bmin);
            gridY1    = p000y + gridDist, gridY2 = p100y + gridDist;
            line->PaintLine(p000x,gridY1,p100x,gridY2);
            gridY2    = p010y + gridDist;
            line->PaintLine(p000x,gridY1,p010x,gridY2);
         }
      }
   } else if (fViewAngle==90) {
      axis->PaintAxis(p010x, p010y, p000x, p000y, bmin, bmax, ndivx, "");
      axis->PaintAxis(p010x, p010y, p110x, p110y, bmin, bmax, ndivx, "");
      if(fAlpha+fBeta<90)
         axis->PaintAxis(p010x, p010y, p011x, p011y, bmin, bmax, ndivx, "");
      if(fAlpha+fBeta<90)
         axis->PaintAxis(p000x, p000y, p001x, p001y, bmin, bmax, ndivx, "");
      axis->PaintAxis(p001x, p001y, p011x, p011y, bmin, bmax, ndivx, "");
      axis->PaintAxis(p011x, p011y, p111x, p111y, bmin, bmax, ndivx, "");
      if (fZscale==kZScaleLinear) {
         bmin  = fZmin;
         bmax  = fZmax;
         ndivz = 10;
         THLimitsFinder::Optimize(bmin, bmax, ndivz, binLow, binHigh,
                                  nbins, binWidth, " ");
         for (i = 0; i < nbins + 1; i++) {
            axisLevel = binLow+i*binWidth;
            gridDist  = (axisLevel-bmin)*(p011y-p010y)/(bmax-bmin);
            gridY1    = p010y + gridDist, gridY2 = p000y + gridDist;
            line->PaintLine(p010x,gridY1,p000x,gridY2);
            gridY2    = p110y + gridDist;
            line->PaintLine(p010x,gridY1,p110x,gridY2);
         }
      }
   } else if (fViewAngle==180) {
      axis->PaintAxis(p110x, p110y, p010x, p010y, bmin, bmax, ndivx, "");
      axis->PaintAxis(p110x, p110y, p100x, p100y, bmin, bmax, ndivx, "");
      if(fAlpha+fBeta<90)
         axis->PaintAxis(p110x, p110y, p111x, p111y, bmin, bmax, ndivx, "");
      if(fAlpha+fBeta<90)
         axis->PaintAxis(p010x, p010y, p011x, p011y, bmin, bmax, ndivx, "");
      axis->PaintAxis(p011x, p011y, p111x, p111y, bmin, bmax, ndivx, "");
      axis->PaintAxis(p111x, p111y, p101x, p101y, bmin, bmax, ndivx, "");
      if (fZscale==kZScaleLinear) {
         bmin  = fZmin;
         bmax  = fZmax;
         ndivz = 10;
         THLimitsFinder::Optimize(bmin, bmax, ndivz, binLow, binHigh,
                                  nbins, binWidth, " ");
         for (i = 0; i < nbins + 1; i++) {
            axisLevel = binLow+i*binWidth;
            gridDist  = (axisLevel-bmin)*(p111y-p110y)/(bmax-bmin);
            gridY1    = p110y + gridDist, gridY2 = p010y + gridDist;
            line->PaintLine(p110x,gridY1,p010x,gridY2);
            gridY2    = p100y + gridDist;
            line->PaintLine(p110x,gridY1,p100x,gridY2);
         }
      }
   } else if (fViewAngle==270) {
      axis->PaintAxis(p100x, p100y, p110x, p110y, bmin, bmax, ndivx, "");
      axis->PaintAxis(p100x, p100y, p000x, p000y, bmin, bmax, ndivx, "");
      if(fAlpha+fBeta<90)
         axis->PaintAxis(p100x, p100y, p101x, p101y, bmin, bmax, ndivx, "");
      if(fAlpha+fBeta<90)
         axis->PaintAxis(p110x, p110y, p111x, p111y, bmin, bmax, ndivx, "");
      axis->PaintAxis(p111x, p111y, p101x, p101y, bmin, bmax, ndivx, "");
      axis->PaintAxis(p101x, p101y, p001x, p001y, bmin, bmax, ndivx, "");
      if (fZscale==kZScaleLinear) {
         bmin  = fZmin;
         bmax  = fZmax;
         ndivz = 10;
         THLimitsFinder::Optimize(bmin, bmax, ndivz, binLow, binHigh,
                                  nbins, binWidth, " ");
         for (i = 0; i < nbins + 1; i++) {
            axisLevel = binLow+i*binWidth;
            gridDist  = (axisLevel-bmin)*(p101y-p100y)/(bmax-bmin);
            gridY1    = p100y + gridDist, gridY2 = p110y + gridDist;
            line->PaintLine(p100x,gridY1,p110x,gridY2);
            gridY2    = p000y + gridDist;
            line->PaintLine(p100x,gridY1,p000x,gridY2);
         }
      }
   }

   // End.
   line->ResetAttLine("");
   line->SetLineColor(fPenColor);
   line->SetLineWidth(fPenWidth);
   line->SetLineStyle(fPenDash);
   turni = 0;
   turnj = 0;
   Transform(w1,0,0);
   x1    = fXt;
   Transform(0,0,0);
   x2    = fXt;
   Transform(0,w2,0);
   x3    = fXt;
   if (x2>=x1) turnj = 1;
   if (x3>=x2) turni = 1;
   q1 = 1;
   q2 = 0;
   qv = 1;
   do {
      uhl  = 0;
      smer = 0;
      flag = 0;
l2:
      if (turni==1) {
         i = q1;
      } else {
         i = w1-q1;
      }
      if (turnj==1) {
         j = q2;
      } else {
         j = w2-q2;
      }
      Transform(i,j,0);
      x1 = fXt;
      y1 = fYt;
      Transform(i,j,-1);
      x1d = fXt;
      y1d = fYt;
      do {
         if (flag==0) {
            flag = 1;
            if (smer==0) q1 -= 1;
            else         q2 -= 1;
         } else {
            flag = 0;
            if (smer==0) q2 += 1;
            else         q1 += 1;
         }
         if (turni==1) {
            i = q1;
         } else {
            i = w1-q1;
         }
         if (turnj==1) {
            j = q2;
         } else {
            j = w2-q2;
         }
         Transform(i,j,0);
         x2 = fXt;
         y2 = fYt;
         if (flag==1) {
            x  = x1;
            y  = y1;
            x1 = x2;
            y1 = y2;
            x2 = x;
            y2 = y;
         }
         switch (fDisplayMode) {
            case kDisplayModePoints:
               if (fModeGroup==kModeGroupSimple) {
                  Envelope(x1,y1,x2,y2);
                  if (y1<=fEnvelope[x1]) {
                     line->PaintLine(gPad->PixeltoX(x1)  ,gPad->PixeltoY(y1)+1,
                                     gPad->PixeltoX(x1+1),gPad->PixeltoY(y1)+1);
                  }
                  if (y2<=fEnvelope[x2]) {
                     line->PaintLine(gPad->PixeltoX(x2)  ,gPad->PixeltoY(y2)+1,
                                     gPad->PixeltoX(x2+1),gPad->PixeltoY(y2)+1);
                  }
               } else {
                  if ((q1!=q2||smer!=0) && flag==1) {
                     s1 = q1+1;
                     t1 = q2;
                     s2 = q1;
                     t2 = q2;
                     s3 = q1;
                     t3 = q2+1;
                     s4 = q1+1;
                     t4 = q2+1;
                     if (fShading==kShaded) {
                        sr1 = s1;
                        tr1 = (Int_t)TMath::Max(t1-1,0);
                        sr2 = s2;
                        tr2 = (Int_t)TMath::Max(t2-1,0);
                        sr3 = (Int_t)TMath::Max(s2-1,0);
                        tr3 = t2;
                        sr4 = (Int_t)TMath::Max(s3-1,0);
                        tr4 = t3;
                        sr5 = s3;
                        tr5 = t3+1;
                        sr6 = s4;
                        tr6 = t4+1;
                        sr7 = s4+1;
                        tr7 = t4;
                        sr8 = s1+1;
                        tr8 = t1;
                     }
                     if (turni==1) {
                        i1 = s1;
                        i2 = s2;
                        i3 = s3;
                        i4 = s4;
                     } else {
                        i1 = (Int_t)TMath::Max(w1-s1,0);
                        i2 = (Int_t)TMath::Max(w1-s2,0);
                        i3 = (Int_t)TMath::Max(w1-s3,0);
                        i4 = (Int_t)TMath::Max(w1-s4,0);
                        if (fShading==kShaded) {
                           sr1 = (Int_t)TMath::Max(w1-sr1,0);
                           sr2 = (Int_t)TMath::Max(w1-sr2,0);
                           sr3 = (Int_t)TMath::Max(w1-sr3,0);
                           sr4 = (Int_t)TMath::Max(w1-sr4,0);
                           sr5 = (Int_t)TMath::Max(w1-sr5,0);
                           sr6 = (Int_t)TMath::Max(w1-sr6,0);
                           sr7 = (Int_t)TMath::Max(w1-sr7,0);
                           sr8 = (Int_t)TMath::Max(w1-sr8,0);
                        }
                     }
                     if (turnj==1) {
                        j1 = t1;
                        j2 = t2;
                        j3 = t3;
                        j4 = t4;
                     } else {
                        j1 = (Int_t)TMath::Max(w2-t1,0);
                        j2 = (Int_t)TMath::Max(w2-t2,0);
                        j3 = (Int_t)TMath::Max(w2-t3,0);
                        j4 = (Int_t)TMath::Max(w2-t4,0);
                        if (fShading==kShaded) {
                           tr1 = (Int_t)TMath::Max(w2-tr1,0);
                           tr2 = (Int_t)TMath::Max(w2-tr2,0);
                           tr3 = (Int_t)TMath::Max(w2-tr3,0);
                           tr4 = (Int_t)TMath::Max(w2-tr4,0);
                           tr5 = (Int_t)TMath::Max(w2-tr5,0);
                           tr6 = (Int_t)TMath::Max(w2-tr6,0);
                           tr7 = (Int_t)TMath::Max(w2-tr7,0);
                           tr8 = (Int_t)TMath::Max(w2-tr8,0);
                        }
                     }
                     Transform(i1,j1,0);
                     x1   = fXt;
                     y1   = fYt;
                     dx1  = fDxspline;
                     dy1  = fDyspline;
                     z1   = fZ;
                     Transform(i2,j2,0);
                     x2   = fXt;
                     y2   = fYt;
                     dx2  = fDxspline;
                     dy2  = fDyspline;
                     z2   = fZ;
                     Transform(i3,j3,0);
                     x3   = fXt;
                     y3   = fYt;
                     dx3  = fDxspline;
                     dy3  = fDyspline;
                     z3   = fZ;
                     Transform(i4,j4,0);
                     x4   = fXt;
                     y4   = fYt;
                     dx4  = fDxspline;
                     dy4  = fDyspline;
                     z4   = fZ;
                     Envelope(x1,y1,x2,y2);
                     Envelope(x2,y2,x3,y3);
                     xtaz = (dx1+dx2+dx4)/3;
                     ytaz = (dy1+dy2+dy4)/3;
                     ztaz = (z1+z2+z4)/3;
                     v    = ColorCalculation(dx1,dy1,z1,dx2,dy2,z2,dx4,dy4,z4);
                     if (fShading==kShaded) {
                        if (fShadow==kShadowsNotPainted) {
                           if (sr1<0||sr1>w1||tr1<0||tr1>w2) Transform(sr1,tr1,-1);
                           else                              Transform(sr1,tr1,0);
                           dxr1  = fDxspline;
                           dyr1  = fDyspline;
                           zr1   = fZ;
                           if (sr8<0||sr8>w1||tr8<0||tr8>w2) Transform(sr8,tr8,-1);
                           else                              Transform(sr8,tr8,0);
                           dxr2  = fDxspline;
                           dyr2  = fDyspline;
                           zr2   = fZ;
                           v     = v+ColorCalculation(dxr1,dyr1,zr1,dx2,dy2,z2,dx1,dy1,z1);
                           v     = v+ColorCalculation(dxr1,dyr1,zr1,dx1,dy1,z1,dxr2,dyr2,zr2);
                           v     = v+ColorCalculation(dxr2,dyr2,zr2,dx1,dy1,z1,dx4,dy4,z4);
                           v1    = v/4;
                           if (sr3<0||sr3>w1||tr3<0||tr3>w2) Transform(sr3,tr3,-1);
                           else                              Transform(sr3,tr3,0);
                           dxr1  = fDxspline;
                           dyr1  = fDyspline;
                           zr1   = fZ;
                           if (sr2<0||sr2>w1||tr2<0||tr2>w2) Transform(sr2,tr2,-1);
                           else                              Transform(sr2,tr2,0);
                           dxr2  = fDxspline;
                           dyr2  = fDyspline;
                           zr2   = fZ;
                           v     = ColorCalculation(dx1,dy1,z1,dx2,dy2,z2,dx3,dy3,z3);
                           v     = v+ColorCalculation(dx2,dy2,z2,dxr1,dyr1,zr1,dx3,dy3,z3);
                           v     = v+ColorCalculation(dx2,dy2,z2,dxr2,dyr2,zr2,dxr1,dyr1,zr1);
                           v     = v+ColorCalculation(dxr2,dyr2,zr2,dx2,dy2,z2,dx1,dy1,z1);
                           v2    = v/4;
                           if (sr5<0||sr5>w1||tr5<0||tr5>w2) Transform(sr5,tr5,-1);
                           else                              Transform(sr5,tr5,0);
                           dxr1  = fDxspline;
                           dyr1  = fDyspline;
                           zr1   = fZ;
                           if (sr4<0||sr4>w1||tr4<0||tr4>w2) Transform(sr4,tr4,-1);
                           else                              Transform(sr4,tr4,0);
                           dxr2  = fDxspline;
                           dyr2  = fDyspline;
                           zr2   = fZ;
                           v     = ColorCalculation(dx2,dy2,z2,dx3,dy3,z3,dx4,dy4,z4);
                           v     = v+ColorCalculation(dx4,dy4,z4,dx3,dy3,z3,dxr1,dyr1,zr1);
                           v     = v+ColorCalculation(dx3,dy3,z3,dxr2,dyr2,zr2,dxr1,dyr1,zr1);
                           v     = v+ColorCalculation(dx2,dy2,z2,dxr2,dyr2,zr2,dx3,dy3,z3);
                           v3    = v/4;
                           if (sr7<0||sr7>w1||tr7<0||tr7>w2) Transform(sr7,tr7,-1);
                           else                              Transform(sr7,tr7,0);
                           dxr1  = fDxspline;
                           dyr1  = fDyspline;
                           zr1   = fZ;
                           if (sr6<0||sr6>w1||tr6<0||tr6>w2) Transform(sr6,tr6,-1);
                           else                              Transform(sr6,tr6,0);
                           dxr2  = fDxspline;
                           dyr2  = fDyspline;
                           zr2   = fZ;
                           v     = ColorCalculation(dx1,dy1,z1,dx3,dy3,z3,dx4,dy4,z4);
                           v     = v+ColorCalculation(dx4,dy4,z4,dx3,dy3,z3,dxr2,dyr2,zr2);
                           v     = v+ColorCalculation(dx4,dy4,z4,dxr2,dyr2,zr2,dxr1,dyr1,zr1);
                           v     = v+ColorCalculation(dx1,dy1,z1,dx4,dy4,z4,dxr1,dyr1,zr1);
                           v4    = v/4;
                        } else {
                           spriz = ShadowColorCalculation(xtaz,ytaz,ztaz,shad_noise);
                           v     = v+spriz;
                           v     = v/2;
                           if (sr1<0||sr1>w1||tr1<0||tr1>w2) Transform(sr1,tr1,-1);
                           else                              Transform(sr1,tr1,0);
                           dxr1  = fDxspline;
                           dyr1  = fDyspline;
                           zr1   = fZ;
                           if (sr8<0||sr8>w1||tr8<0||tr8>w2) Transform(sr8,tr8,-1);
                           else                              Transform(sr8,tr8,0);
                           dxr2  = fDxspline;
                           dyr2  = fDyspline;
                           zr2   = fZ;
                           da    = (dxr1+dx2+dx1)/3;
                           db    = (dyr1+dy2+dy1)/3;
                           dc    = (zr1+z2+z1)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dxr1,dyr1,zr1,dx2,dy2,z2,dx1,dy1,z1)+spriz)/2;
                           da    = (dxr1+dxr2+dx1)/3;
                           db    = (dyr1+dyr2+dy1)/3;
                           dc    = (zr1+zr2+z1)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dxr1,dyr1,zr1,dx1,dy1,z1,dxr2,dyr2,zr2)+spriz)/2;
                           da    = (dxr2+dx1+dx4)/3;
                           db    = (dyr2+dy1+dy4)/3;
                           dc    = (zr2+z1+z4)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dxr2,dyr2,zr2,dx1,dy1,z1,dx4,dy4,z4)+spriz)/2;
                           v1    = v/4;
                           if (sr3<0||sr3>w1||tr3<0||tr3>w2) Transform(sr3,tr3,-1);
                           else                              Transform(sr3,tr3,0);
                           dxr1  = fDxspline;
                           dyr1  = fDyspline;
                           zr1   = fZ;
                           if (sr2<0||sr2>w1||tr2<0||tr2>w2) Transform(sr2,tr2,-1);
                           else                              Transform(sr2,tr2,0);
                           dxr2  = fDxspline;
                           dyr2  = fDyspline;
                           zr2   = fZ;
                           da    = (dx1+dx2+dx3)/3;
                           db    = (dy1+dy2+dy3)/3;
                           dc    = (z1+z2+z3)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = (ColorCalculation(dx1,dy1,z1,dx2,dy2,z2,dx3,dy3,z3)+spriz)/2;
                           da    = (dx2+dxr1+dx3)/3;
                           db    = (dy2+dyr1+dy3)/3;
                           dc    = (z2+zr1+z3)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dx2,dy2,z2,dxr1,dyr1,zr1,dx3,dy3,z3)+spriz)/2;
                           da    = (dx2+dxr2+dxr1)/3;
                           db    = (dy2+dyr2+dyr1)/3;
                           dc    = (z2+zr2+zr1)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dx2,dy2,z2,dxr2,dyr2,zr2,dxr1,dyr1,zr1)+spriz)/2;
                           da    = (dxr2+dx2+dx1)/3;
                           db    = (dyr2+dy2+dy1)/3;
                           dc    = (zr2+z2+z1)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dxr2,dyr2,zr2,dx2,dy2,z2,dx1,dy1,z1)+spriz)/2;
                           v2    = v/4;
                           if (sr5<0||sr5>w1||tr5<0||tr5>w2) Transform(sr5,tr5,-1);
                           else                              Transform(sr5,tr5,0);
                           dxr1  = fDxspline;
                           dyr1  = fDyspline;
                           zr1   = fZ;
                           if (sr4<0||sr4>w1||tr4<0||tr4>w2) Transform(sr4,tr4,-1);
                           else                              Transform(sr4,tr4,0);
                           dxr2  = fDxspline;
                           dyr2  = fDyspline;
                           zr2   = fZ;
                           da    = (dx2+dx3+dx4)/3;
                           db    = (dy2+dy3+dy4)/3;
                           dc    = (z2+z3+z4)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = (ColorCalculation(dx2,dy2,z2,dx3,dy3,z3,dx4,dy4,z4)+spriz)/2;
                           da    = (dx4+dx3+dxr1)/3;
                           db    = (dy4+dy3+dyr1)/3;
                           dc    = (z4+z3+zr1)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dx4,dy4,z4,dx3,dy3,z3,dxr1,dyr1,zr1)+spriz)/2;
                           da    = (dx3+dxr2+dxr1)/3;
                           db    = (dy3+dyr2+dyr1)/3;
                           dc    = (z3+zr2+zr1)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dx3,dy3,z3,dxr2,dyr2,zr2,dxr1,dyr1,zr1)+spriz)/2;
                           da    = (dx2+dxr2+dx3)/3;
                           db    = (dy2+dyr2+dy3)/3;
                           dc    = (z2+zr2+z3)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dx2,dy2,z2,dxr2,dyr2,zr2,dx3,dy3,z3)+spriz)/2;
                           v3    = v/4;
                           if (sr7<0||sr7>w1||tr7<0||tr7>w2) Transform(sr7,tr7,-1);
                           else                              Transform(sr7,tr7,0);
                           dxr1  = fDxspline;
                           dyr1  = fDyspline;
                           zr1   = fZ;
                           if (sr6<0||sr6>w1||tr6<0||tr6>w2) Transform(sr6,tr6,-1);
                           else                              Transform(sr6,tr6,0);
                           dxr2  = fDxspline;
                           dyr2  = fDyspline;
                           zr2   = fZ;
                           da    = (dx1+dx3+dx4)/3;
                           db    = (dy1+dy3+dy4)/3;
                           dc    = (z1+z3+z4)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = (ColorCalculation(dx1,dy1,z1,dx3,dy3,z3,dx4,dy4,z4)+spriz)/2;
                           da    = (dx4+dx3+dxr2)/3;
                           db    = (dy4+dy3+dyr2)/3;
                           dc    = (z4+z3+zr2)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dx4,dy4,z4,dx3,dy3,z3,dxr2,dyr2,zr2)+spriz)/2;
                           da    = (dx4+dxr2+dxr1)/3;
                           db    = (dy4+dyr2+dyr1)/3;
                           dc    = (z4+zr2+zr1)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dx4,dy4,z4,dxr2,dyr2,zr2,dxr1,dyr1,zr1)+spriz)/2;
                           da    = (dx1+dx4+dxr1)/3;
                           db    = (dy1+dy4+dyr1)/3;
                           dc    = (z1+z4+zr1)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dx1,dy1,z1,dx4,dy4,z4,dxr1,dyr1,zr1)+spriz)/2;
                           v4    = v/4;
                        }
                     }
                     spriz = 0;
                     if (fShadow==kShadowsNotPainted) {
                        if (fShading==kNotShaded) {
                           v  = v*fLevels+0.5;
                           iv = fLevels-(Int_t)v;
                        } else {
                           v1  = v1*fLevels;
                           iv1 = fLevels-(Int_t)v1;
                           v2  = v2*fLevels;
                           iv2 = fLevels-(Int_t)v2;
                           v4 = v4*fLevels;
                           iv4 = fLevels-(Int_t)v4;
                        }
                     } else {
                        spriz = ShadowColorCalculation(xtaz,ytaz,ztaz,shad_noise);
                        if (fShading==kNotShaded) {
                           v  = v*fLevels/2.0;
                           iv = fLevels-(Int_t)(v+0.5);
                        } else {
                           v1  = v1*fLevels;
                           iv1 = fLevels-(Int_t)v1;
                           v2  = v2*fLevels;
                           iv2 = fLevels-(Int_t)v2;
                           v4  = v4*fLevels;
                           iv4 = fLevels-(Int_t)v4;
                        }
                     }
                     if (fShading==kNotShaded) {
                        ColorModel(iv,ui1,ui2,ui3);
                        line->SetLineColor(fNewColorIndex);
                        if (fEnvelope[x1]>=y1) {
                           line->PaintLine(gPad->PixeltoX(x1),gPad->PixeltoY(y1)+1,gPad->PixeltoX(x1+1),gPad->PixeltoY(y1)+1);
                           fEnvelope[x1] = y1;
                        }
                        if (fEnvelope[x2]>=y2) {
                           line->PaintLine(gPad->PixeltoX(x2),gPad->PixeltoY(y2)+1,gPad->PixeltoX(x2+1),gPad->PixeltoY(y2)+1);
                           fEnvelope[x2] = y2;
                        }
                        if (fEnvelope[x4]>=y4) {
                           line->PaintLine(gPad->PixeltoX(x4),gPad->PixeltoY(y4)+1,gPad->PixeltoX(x4+1),gPad->PixeltoY(y4)+1);
                           fEnvelope[x4] = y4;
                        }
                     } else {
                        if (fEnvelope[x1]>=y1) {
                           iv = iv1;
                           ColorModel(iv,ui1,ui2,ui3);
                           line->SetLineColor(fNewColorIndex);
                           line->PaintLine(gPad->PixeltoX(x1),gPad->PixeltoY(y1)+1,gPad->PixeltoX(x1+1),gPad->PixeltoY(y1)+1);
                           fEnvelope[x1] = y1;
                        }
                        if (fEnvelope[x2]>=y2) {
                           iv = iv2;
                           ColorModel(iv,ui1,ui2,ui3);
                           line->SetLineColor(fNewColorIndex);
                           line->PaintLine(gPad->PixeltoX(x2),gPad->PixeltoY(y2)+1,gPad->PixeltoX(x2+1),gPad->PixeltoY(y2)+1);
                           fEnvelope[x2]=y2;
                        }
                        if (fEnvelope[x4]>=y4) {
                           iv = iv4;
                           ColorModel(iv,ui1,ui2,ui3);
                           line->SetLineColor(fNewColorIndex);
                           line->PaintLine(gPad->PixeltoX(x4),gPad->PixeltoY(y4)+1,gPad->PixeltoX(x4+1),gPad->PixeltoY(y4)+1);
                           fEnvelope[x4] = y4;
                        }
                     }
                     xtaz = (dx3+dx2+dx4)/3;
                     ytaz = (dy3+dy2+dy4)/3;
                     ztaz = (z3+z2+z4)/3;
                     if (fShading==kNotShaded) v=ColorCalculation(dx2,dy2,z2,dx3,dy3,z3,dx4,dy4,z4);
                     spriz = 0;
                     if (fShadow==kShadowsNotPainted) {
                        if (fShading==kNotShaded) {
                           v  = v*fLevels;
                           iv = fLevels-(Int_t)v;
                        } else {
                           v3  = v3*fLevels;
                           iv3 = fLevels-(Int_t)v3;
                        }
                     } else {
                        spriz = ShadowColorCalculation(xtaz,ytaz,ztaz,shad_noise);
                        if (fShading==kNotShaded) {
                           v  = v*fLevels/2;
                           iv = fLevels-(Int_t)v;
                           iv = (Int_t)(iv-fLevels*spriz/2);
                        } else {
                           v3  = v3*fLevels;
                           iv3 = fLevels-(Int_t)v3;
                        }
                     }
                     if (fShading==kNotShaded) {
                        ColorModel(iv,ui1,ui2,ui3);
                        line->ResetAttLine("");
                        line->SetLineColor(fNewColorIndex);
                        if (fEnvelope[x3]>=y3) {
                           line->PaintLine(gPad->PixeltoX(x3),gPad->PixeltoY(y3)+1,gPad->PixeltoX(x3+1),gPad->PixeltoY(y3)+1);
                           fEnvelope[x3] = y3;
                        }
                     } else {
                        if (fEnvelope[x3]>=y3) {
                           iv = iv3;
                           ColorModel(iv,ui1,ui2,ui3);
                           line->ResetAttLine("");
                           line->SetLineColor(fNewColorIndex);
                           line->PaintLine(gPad->PixeltoX(x3),gPad->PixeltoY(y3)+1,gPad->PixeltoX(x3+1),gPad->PixeltoY(y3)+1);
                           fEnvelope[x3]=y3;
                        }
                     }
                  }
               }
               break;
            case kDisplayModeGrid:
               if (fBezier==kNoBezierInterpol) {
                  if (fModeGroup==kModeGroupSimple) {
                        Envelope(x1,y1,x2,y2);
                        if (fLine!=0) {
                           if (fLine==1) {
                              fXe = x2;
                              fYe = y2;
                           }
                           line->PaintLine(gPad->PixeltoX(fXs),gPad->PixeltoY(fYs)+1,gPad->PixeltoX(fXe),gPad->PixeltoY(fYe)+1);
                        }
                  } else {
                     if ((q1!=q2||smer!=0)&&flag==1) {
                        s1 = q1+1;
                        t1 = q2;
                        s2 = q1;
                        t2 = q2;
                        s3 = q1;
                        t3 = q2+1;
                        s4 = q1+1;
                        t4 = q2+1;
                        if (fShading==kShaded) {
                           sr1 = s1;
                           tr1 = (Int_t)TMath::Max(t1-1,0);
                           sr2 = s2;
                           tr2 = (Int_t)TMath::Max(t2-1,0);
                           sr3 = (Int_t)TMath::Max(s2-1,0);
                           tr3 = t2;
                           sr4 = (Int_t)TMath::Max(s3-1,0);
                           tr4 = t3;
                           sr5 = s3;
                           tr5 = t3+1;
                           sr6 = s4;
                           tr6 = t4+1;
                           sr7 = s4+1;
                           tr7 = t4;
                           sr8 = s1+1;
                           tr8 = t1;
                        }
                        if (turni==1) {
                           i1 = s1;
                           i2 = s2;
                           i3 = s3;
                           i4 = s4;
                        } else {
                           i1 = (Int_t)TMath::Max(w1-s1,0);
                           i2 = (Int_t)TMath::Max(w1-s2,0);
                           i3 = (Int_t)TMath::Max(w1-s3,0);
                           i4 = (Int_t)TMath::Max(w1-s4,0);
                           if (fShading==kShaded) {
                              sr1 = (Int_t)TMath::Max(w1-sr1,0);
                              sr2 = (Int_t)TMath::Max(w1-sr2,0);
                              sr3 = (Int_t)TMath::Max(w1-sr3,0);
                              sr4 = (Int_t)TMath::Max(w1-sr4,0);
                              sr5 = (Int_t)TMath::Max(w1-sr5,0);
                              sr6 = (Int_t)TMath::Max(w1-sr6,0);
                              sr7 = (Int_t)TMath::Max(w1-sr7,0);
                              sr8 = (Int_t)TMath::Max(w1-sr8,0);
                           }
                        }
                        if (turnj==1) {
                           j1 = t1;
                           j2 = t2;
                           j3 = t3;
                           j4 = t4;
                        } else {
                           j1 = (Int_t)TMath::Max(w2-t1,0);
                           j2 = (Int_t)TMath::Max(w2-t2,0);
                           j3 = (Int_t)TMath::Max(w2-t3,0);
                           j4 = (Int_t)TMath::Max(w2-t4,0);
                           if (fShading==kShaded) {
                              tr1 = (Int_t)TMath::Max(w2-tr1,0);
                              tr2 = (Int_t)TMath::Max(w2-tr2,0);
                              tr3 = (Int_t)TMath::Max(w2-tr3,0);
                              tr4 = (Int_t)TMath::Max(w2-tr4,0);
                              tr5 = (Int_t)TMath::Max(w2-tr5,0);
                              tr6 = (Int_t)TMath::Max(w2-tr6,0);
                              tr7 = (Int_t)TMath::Max(w2-tr7,0);
                              tr8 = (Int_t)TMath::Max(w2-tr8,0);
                           }
                        }
                        Transform(i1,j1,0);
                        x1  = fXt;
                        y1  = fYt;
                        dx1 = fDxspline;
                        dy1 = fDyspline;
                        z1  = fZ;
                        Transform(i2,j2,0);
                        x2  = fXt;
                        y2  = fYt;
                        dx2 = fDxspline;
                        dy2 = fDyspline;
                        z2  = fZ;
                        Transform(i3,j3,0);
                        x3  = fXt;
                        y3  = fYt;
                        dx3 = fDxspline;
                        dy3 = fDyspline;
                        z3  = fZ;
                        Transform(i4,j4,0);
                        x4  = fXt;
                        y4  = fYt;
                        dx4 = fDxspline;
                        dy4 = fDyspline;
                        z4  = fZ;
                        Envelope(x1,y1,x2,y2);
                        Envelope(x2,y2,x3,y3);
                        xtaz = (dx1+dx2+dx4)/3;
                        ytaz = (dy1+dy2+dy4)/3;
                        ztaz = (z1+z2+z4)/3;
                        v    = ColorCalculation(dx1,dy1,z1,dx2,dy2,z2,dx4,dy4,z4);
                        if (fShading==kShaded) {
                           if (fShadow==kShadowsNotPainted) {
                              if (sr1<0||sr1>w1||tr1<0||tr1>w2) Transform(sr1,tr1,-1);
                              else                              Transform(sr1,tr1,0);
                              dxr1  = fDxspline;
                              dyr1  = fDyspline;
                              zr1   = fZ;
                              if (sr8<0||sr8>w1||tr8<0||tr8>w2) Transform(sr8,tr8,-1);
                              else                              Transform(sr8,tr8,0);
                              dxr2  = fDxspline;
                              dyr2  = fDyspline;
                              zr2   = fZ;
                              v     = v+ColorCalculation(dxr1,dyr1,zr1,dx2,dy2,z2,dx1,dy1,z1);
                              v     = v+ColorCalculation(dxr1,dyr1,zr1,dx1,dy1,z1,dxr2,dyr2,zr2);
                              v     = v+ColorCalculation(dxr2,dyr2,zr2,dx1,dy1,z1,dx4,dy4,z4);
                              v1    = v/4;
                              if (sr3<0||sr3>w1||tr3<0||tr3>w2) Transform(sr3,tr3,-1);
                              else                              Transform(sr3,tr3,0);
                              dxr1  = fDxspline;
                              dyr1  = fDyspline;
                              zr1   = fZ;
                              if (sr2<0||sr2>w1||tr2<0||tr2>w2) Transform(sr2,tr2,-1);
                              else                              Transform(sr2,tr2,0);
                              dxr2  = fDxspline;
                              dyr2  = fDyspline;
                              zr2   = fZ;
                              v     = ColorCalculation(dx1,dy1,z1,dx2,dy2,z2,dx3,dy3,z3);
                              v     = v+ColorCalculation(dx2,dy2,z2,dxr1,dyr1,zr1,dx3,dy3,z3);
                              v     = v+ColorCalculation(dx2,dy2,z2,dxr2,dyr2,zr2,dxr1,dyr1,zr1);
                              v     = v+ColorCalculation(dxr2,dyr2,zr2,dx2,dy2,z2,dx1,dy1,z1);
                              v2    = v/4;
                              if (sr5<0||sr5>w1||tr5<0||tr5>w2) Transform(sr5,tr5,-1);
                              else                              Transform(sr5,tr5,0);
                              dxr1  = fDxspline;
                              dyr1  = fDyspline;
                              zr1   = fZ;
                              if (sr4<0||sr4>w1||tr4<0||tr4>w2) Transform(sr4,tr4,-1);
                              else                              Transform(sr4,tr4,0);
                              dxr2  = fDxspline;
                              dyr2  = fDyspline;
                              zr2   = fZ;
                              v     = ColorCalculation(dx2,dy2,z2,dx3,dy3,z3,dx4,dy4,z4);
                              v     = v+ColorCalculation(dx4,dy4,z4,dx3,dy3,z3,dxr1,dyr1,zr1);
                              v     = v+ColorCalculation(dx3,dy3,z3,dxr2,dyr2,zr2,dxr1,dyr1,zr1);
                              v     = v+ColorCalculation(dx2,dy2,z2,dxr2,dyr2,zr2,dx3,dy3,z3);
                              v3    = v/4;
                              if (sr7<0||sr7>w1||tr7<0||tr7>w2) Transform(sr7,tr7,-1);
                              else                              Transform(sr7,tr7,0);
                              dxr1  = fDxspline;
                              dyr1  = fDyspline;
                              zr1   = fZ;
                              if (sr6<0||sr6>w1||tr6<0||tr6>w2) Transform(sr6,tr6,-1);
                              else                              Transform(sr6,tr6,0);
                              dxr2  = fDxspline;
                              dyr2  = fDyspline;
                              zr2   = fZ;
                              v     = ColorCalculation(dx1,dy1,z1,dx3,dy3,z3,dx4,dy4,z4);
                              v     = v+ColorCalculation(dx4,dy4,z4,dx3,dy3,z3,dxr2,dyr2,zr2);
                              v     = v+ColorCalculation(dx4,dy4,z4,dxr2,dyr2,zr2,dxr1,dyr1,zr1);
                              v     = v+ColorCalculation(dx1,dy1,z1,dx4,dy4,z4,dxr1,dyr1,zr1);
                              v4    = v/4;
                           } else {
                              spriz = ShadowColorCalculation(xtaz,ytaz,ztaz,shad_noise);
                              v     = v+spriz;
                              v     = v/2;
                              if (sr1<0||sr1>w1||tr1<0||tr1>w2) Transform(sr1,tr1,-1);
                              else                              Transform(sr1,tr1,0);
                              dxr1  = fDxspline;
                              dyr1  = fDyspline;
                              zr1   = fZ;
                              if (sr8<0||sr8>w1||tr8<0||tr8>w2) Transform(sr8,tr8,-1);
                              else                              Transform(sr8,tr8,0);
                              dxr2  = fDxspline;
                              dyr2  = fDyspline;
                              zr2   = fZ;
                              da    = (dxr1+dx2+dx1)/3;
                              db    = (dyr1+dy2+dy1)/3;
                              dc    = (zr1+z2+z1)/3;
                              spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                              v     = v+(ColorCalculation(dxr1,dyr1,zr1,dx2,dy2,z2,dx1,dy1,z1)+spriz)/2;
                              da    = (dxr1+dxr2+dx1)/3;
                              db    = (dyr1+dyr2+dy1)/3;
                              dc    = (zr1+zr2+z1)/3;
                              spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                              v     = v+(ColorCalculation(dxr1,dyr1,zr1,dx1,dy1,z1,dxr2,dyr2,zr2)+spriz)/2;
                              da    = (dxr2+dx1+dx4)/3;
                              db    = (dyr2+dy1+dy4)/3;
                              dc    = (zr2+z1+z4)/3;
                              spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                              v     = v+(ColorCalculation(dxr2,dyr2,zr2,dx1,dy1,z1,dx4,dy4,z4)+spriz)/2;
                              v1    = v/4;
                              if (sr3<0||sr3>w1||tr3<0||tr3>w2) Transform(sr3,tr3,-1);
                              else                              Transform(sr3,tr3,0);
                              dxr1  = fDxspline;
                              dyr1  = fDyspline;
                              zr1   = fZ;
                              if (sr2<0||sr2>w1||tr2<0||tr2>w2) Transform(sr2,tr2,-1);
                              else                              Transform(sr2,tr2,0);
                              dxr2  = fDxspline;
                              dyr2  = fDyspline;
                              zr2   = fZ;
                              da    = (dx1+dx2+dx3)/3;
                              db    = (dy1+dy2+dy3)/3;
                              dc    = (z1+z2+z3)/3;
                              spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                              v     = (ColorCalculation(dx1,dy1,z1,dx2,dy2,z2,dx3,dy3,z3)+spriz)/2;
                              da    = (dx2+dxr1+dx3)/3;
                              db    = (dy2+dyr1+dy3)/3;
                              dc    = (z2+zr1+z3)/3;
                              spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                              v     = v+(ColorCalculation(dx2,dy2,z2,dxr1,dyr1,zr1,dx3,dy3,z3)+spriz)/2;
                              da    = (dx2+dxr2+dxr1)/3;
                              db    = (dy2+dyr2+dyr1)/3;
                              dc    = (z2+zr2+zr1)/3;
                              spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                              v     = v+(ColorCalculation(dx2,dy2,z2,dxr2,dyr2,zr2,dxr1,dyr1,zr1)+spriz)/2;
                              da    = (dxr2+dx2+dx1)/3;
                              db    = (dyr2+dy2+dy1)/3;
                              dc    = (zr2+z2+z1)/3;
                              spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                              v     = v+(ColorCalculation(dxr2,dyr2,zr2,dx2,dy2,z2,dx1,dy1,z1)+spriz)/2;
                              v2    = v/4;
                              if (sr5<0||sr5>w1||tr5<0||tr5>w2) Transform(sr5,tr5,-1);
                              else                              Transform(sr5,tr5,0);
                              dxr1  = fDxspline;
                              dyr1  = fDyspline;
                              zr1   = fZ;
                              if (sr4<0||sr4>w1||tr4<0||tr4>w2) Transform(sr4,tr4,-1);
                              else                              Transform(sr4,tr4,0);
                              dxr2  = fDxspline;
                              dyr2  = fDyspline;
                              zr2   = fZ;
                              da    = (dx2+dx3+dx4)/3;
                              db    = (dy2+dy3+dy4)/3;
                              dc    = (z2+z3+z4)/3;
                              spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                              v     = (ColorCalculation(dx2,dy2,z2,dx3,dy3,z3,dx4,dy4,z4)+spriz)/2;
                              da    = (dx4+dx3+dxr1)/3;
                              db    = (dy4+dy3+dyr1)/3;
                              dc    = (z4+z3+zr1)/3;
                              spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                              v     = v+(ColorCalculation(dx4,dy4,z4,dx3,dy3,z3,dxr1,dyr1,zr1)+spriz)/2;
                              da    = (dx3+dxr2+dxr1)/3;
                              db    = (dy3+dyr2+dyr1)/3;
                              dc    = (z3+zr2+zr1)/3;
                              spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                              v     = v+(ColorCalculation(dx3,dy3,z3,dxr2,dyr2,zr2,dxr1,dyr1,zr1)+spriz)/2;
                              da    = (dx2+dxr2+dx3)/3;
                              db    = (dy2+dyr2+dy3)/3;
                              dc    = (z2+zr2+z3)/3;
                              spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                              v     = v+(ColorCalculation(dx2,dy2,z2,dxr2,dyr2,zr2,dx3,dy3,z3)+spriz)/2;
                              v3    = v/4;
                              if (sr7<0||sr7>w1||tr7<0||tr7>w2) Transform(sr7,tr7,-1);
                              else                              Transform(sr7,tr7,0);
                              dxr1  = fDxspline;
                              dyr1  = fDyspline;
                              zr1   = fZ;
                              if (sr6<0||sr6>w1||tr6<0||tr6>w2) Transform(sr6,tr6,-1);
                              else                              Transform(sr6,tr6,0);
                              dxr2  = fDxspline;
                              dyr2  = fDyspline;
                              zr2   = fZ;
                              da    = (dx1+dx3+dx4)/3;
                              db    = (dy1+dy3+dy4)/3;
                              dc    = (z1+z3+z4)/3;
                              spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                              v     = (ColorCalculation(dx1,dy1,z1,dx3,dy3,z3,dx4,dy4,z4)+spriz)/2;
                              da    = (dx4+dx3+dxr2)/3;
                              db    = (dy4+dy3+dyr2)/3;
                              dc    = (z4+z3+zr2)/3;
                              spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                              v     = v+(ColorCalculation(dx4,dy4,z4,dx3,dy3,z3,dxr2,dyr2,zr2)+spriz)/2;
                              da    = (dx4+dxr2+dxr1)/3;
                              db    = (dy4+dyr2+dyr1)/3;
                              dc    = (z4+zr2+zr1)/3;
                              spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                              v     = v+(ColorCalculation(dx4,dy4,z4,dxr2,dyr2,zr2,dxr1,dyr1,zr1)+spriz)/2;
                              da    = (dx1+dx4+dxr1)/3;
                              db    = (dy1+dy4+dyr1)/3;
                              dc    = (z1+z4+zr1)/3;
                              spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                              v     = v+(ColorCalculation(dx1,dy1,z1,dx4,dy4,z4,dxr1,dyr1,zr1)+spriz)/2;
                              v4    = v/4;
                           }
                        }
                        spriz = 0;
                        if (fShadow==kShadowsNotPainted) {
                           if (fShading==kNotShaded) {
                              v  = v*fLevels+0.5;
                              iv = fLevels-(Int_t)v;
                           } else {
                              v1  = v1*fLevels;
                              iv1 = fLevels-(Int_t)v1;
                              v2  = v2*fLevels;
                              iv2 = fLevels-(Int_t)v2;
                              v4  = v4*fLevels;
                              iv4 = fLevels-(Int_t)v4;
                           }
                        } else {
                           spriz = ShadowColorCalculation(xtaz,ytaz,ztaz,shad_noise);
                           if (fShading==kNotShaded) {
                              v  = v*fLevels/2.0;
                              iv = fLevels-(Int_t)(v+0.5);
                           } else {
                              v1  = v1*fLevels;
                              iv1 = fLevels-(Int_t)v1;
                              v2  = v2*fLevels;
                              iv2 = fLevels-(Int_t)v2;
                              v4  = v4*fLevels;
                              iv4 = fLevels-(Int_t)v4;
                           }
                        }
                        if (fShading==kNotShaded) {
                           ColorModel(iv,ui1,ui2,ui3);
                           line->SetLineColor(fNewColorIndex);
                        } else {
                           dx1 = x1;
                           dy1 = y1;
                           dx2 = x2;
                           dy2 = y2;
                           dx3 = x4;
                           dy3 = y4;
                           z1  = iv1;
                           z2  = iv2;
                           z3  = iv4;
                           da  = (dy2-dy1)*(z3-z1)-(dy3-dy1)*(z2-z1);
                           db  = (z2-z1)*(dx3-dx1)-(z3-z1)*(dx2-dx1);
                           dc  = (dx2-dx1)*(dy3-dy1)-(dx3-dx1)*(dy2-dy1);
                           dd  = -da*dx1-db*dy1-dc*z1;
                        }
                        sx1 = x1;
                        sy1 = y1;
                        sx2 = x2;
                        sy2 = y2;
                        if (sx2<sx1) {
                           sx4 = sx1;
                           sy4 = sy1;
                           sx1 = sx2;
                           sy1 = sy2;
                           sx2 = sx4;
                           sy2 = sy4;
                        }
                        sdx1 = 0;
                        pom1 = sy2-sy1;
                        pom2 = sx2-sx1;
                        if (pom2!=0) sdx1 = pom1/pom2;
                        pom1 = sy1;
                        pom2 = sx1;
                        sdy1 = pom1-sdx1*pom2;
                        for (sx4=sx1,sx5=sx1,sy5=sy1;sx4<=sx2;sx4++) {
                           pom1 = sx4;
                           sdy4 = sdx1*pom1+sdy1;
                           sy4  = (Int_t)(sdy4);
                           if (sy4<=fEnvelope[sx4]) {
                              fEnvelope[sx4] = sy4;
                              if (fShading==kNotShaded) {
                                 line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                              } else {
                                 dx1 = sx4;
                                 dy1 = sy4;
                                 if (dc!=0) v = (-dd-da*dx1-db*dy1)/dc;
                                 else       v = (iv1+iv2+iv4)/3;
                                 iv = (Int_t)v;
                                 ColorModel(iv,ui1,ui2,ui3);
                                 line->SetLineColor(fNewColorIndex);
                                 line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                              }
                              sy5 = sy4;
                           } else {
                              sy4 = fEnvelope[sx4];
                              if (fShading==kNotShaded&&sy5<=fEnvelope[sx5]) {
                                 line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                              } else if (sy5<=fEnvelope[sx5]) {
                                 dx1 = sx4;
                                 dy1 = sy4;
                              if (dc!=0) v = (-dd-da*dx1-db*dy1)/dc;
                              else       v = (iv1+iv2+iv4)/3;
                              iv = (Int_t)v;
                              ColorModel(iv,ui1,ui2,ui3);
                              line->SetLineColor(fNewColorIndex);
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                              }
                              sy5 = fEnvelope[sx4];
                           }
                           sx5 = sx4;
                        }
                        sx1 = x1;
                        sy1 = y1;
                        sx3 = x4;
                        sy3 = y4;
                        if (sx3<sx1) {
                           sx4 = sx1;
                           sy4 = sy1;
                           sx1 = sx3;
                           sy1 = sy3;
                           sx3 = sx4;
                           sy3 = sy4;
                        }
                        pom1  = sy3-sy1;
                        pom2  = sx3-sx1;
                        if (pom2!=0) sdx2 = pom1/pom2;
                        pom1  = sy1;
                        pom2  = sx1;
                        sdy2  = pom1-sdx2*pom2;
                        sx1p  = sx1;
                        sy1p  = sy1;
                        sx3p  = sx3;
                        sdx2p = sdx2;
                        sdy2p = sdy2;
                        dap   = da;
                        dbp   = db;
                        dcp   = dc;
                        ddp   = dd;
                        uip   = fNewColorIndex;
                        xtaz  = (dx3+dx2+dx4)/3;
                        ytaz  = (dy3+dy2+dy4)/3;
                        ztaz  = (z3+z2+z4)/3;
                        if (fShading==kNotShaded) v = ColorCalculation(dx2,dy2,z2,dx3,dy3,z3,dx4,dy4,z4);
                        spriz = 0;
                        if (fShadow==kShadowsNotPainted) {
                           if (fShading==kNotShaded) {
                              v  = v*fLevels;
                              iv = fLevels-(Int_t)v;
                           } else {
                              v3  = v3*fLevels;
                              iv3 = fLevels-(Int_t)v3;
                           }
                        } else {
                           spriz = ShadowColorCalculation(xtaz,ytaz,ztaz,shad_noise);
                           if (fShading==kNotShaded) {
                              v  = v*fLevels/2;
                              iv = fLevels-(Int_t)v;
                              iv = (Int_t)(iv-fLevels*spriz/2);
                           } else {
                              v3  = v3*fLevels;
                              iv3 = fLevels-(Int_t)v3;
                           }
                        }
                        if (fShading==kNotShaded) {
                           ColorModel(iv,ui1,ui2,ui3);
                           line->SetLineColor(fNewColorIndex);
                        } else {
                           dx1 = x2;
                           dy1 = y2;
                           dx2 = x3;
                           dy2 = y3;
                           dx3 = x4;
                           dy3 = y4;
                           z1  = iv2;
                           z2  = iv3;
                           z3  = iv4;
                           da  = (dy2-dy1)*(z3-z1)-(dy3-dy1)*(z2-z1);
                           db  = (z2-z1)*(dx3-dx1)-(z3-z1)*(dx2-dx1);
                           dc  = (dx2-dx1)*(dy3-dy1)-(dx3-dx1)*(dy2-dy1);
                           dd  = -da*dx1-db*dy1-dc*z1;
                        }
                        sx1 = x2;
                        sy1 = y2;
                        sx2 = x3;
                        sy2 = y3;
                        if (sx2<sx1) {
                           sx4 = sx1;
                           sy4 = sy1;
                           sx1 = sx2;
                           sy1 = sy2;
                           sx2 = sx4;
                           sy2 = sy4;
                        }
                        pom1 = sy2-sy1;
                        pom2 = sx2-sx1;
                        sdx1 = 0;
                        if (pom2!=0) sdx1 = pom1/pom2;
                        pom1 = sy1;
                        pom2 = sx1;
                        sdy1 = pom1-sdx1*pom2;
                        for (sx4=sx1,sx5=sx1,sy5=sy1;sx4<=sx2;sx4++) {
                           pom1 = sx4;
                           sdy4 = sdx1*pom1+sdy1;
                           sy4  = (Int_t)sdy4;
                           if (sy4<=fEnvelope[sx4]) {
                              fEnvelope[sx4] = sy4;
                              if (fShading==kNotShaded) {
                                 line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                              } else {
                                 dx1 = sx4;
                                 dy1 = sy4;
                                 if (dc!=0) v = (-dd-da*dx1-db*dy1)/dc;
                                 else       v = (iv1+iv2+iv4)/3;
                                 iv = (Int_t)v;
                                 ColorModel(iv,ui1,ui2,ui3);
                                 line->SetLineColor(fNewColorIndex);
                                 line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                              }
                              sy5 = sy4;
                           } else {
                              sy4 = fEnvelope[sx4];
                              if (fShading==kNotShaded&&sy5<=fEnvelope[sx5]) {
                                 line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                              } else if (sy5<=fEnvelope[sx5]) {
                                 dx1 = sx4;
                                 dy1 = sy4;
                                 if (dc!=0) v = (-dd-da*dx1-db*dy1)/dc;
                                 else       v = (iv1+iv2+iv4)/3;
                                 iv = (Int_t)v;
                                 ColorModel(iv,ui1,ui2,ui3);
                                 line->SetLineColor(fNewColorIndex);
                                 line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                              }
                              sy5 = fEnvelope[sx4];
                           }
                           sx5 = sx4;
                        }
                        for (sx4=sx1p,sx5=sx1p,sy5=sy1p;sx4<=sx3p;sx4++) {
                           pom1 = sx4;
                           sdy4 = sdx2p*pom1+sdy2p;
                           sy4  = (Int_t)sdy4;
                           if (sy4<=fEnvelope[sx4]) {
                              fEnvelope[sx4]=sy4;
                              if (fShading==kNotShaded) {
                                 line->SetLineColor(uip);
                                 line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                              } else {
                                 dx1 = sx4;
                                 dy1 = sy4;
                                 if (dcp!=0) v = (-ddp-dap*dx1-dbp*dy1)/dcp;
                                 else        v = (iv1+iv2+iv4)/3;
                                 iv = (Int_t)v;
                                 ColorModel(iv,ui1,ui2,ui3);
                                 line->SetLineColor(fNewColorIndex);
                                 line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                              }
                              sy5 = sy4;
                           } else {
                              sy4 = fEnvelope[sx4];
                              if (fShading==kNotShaded&&sy5<=fEnvelope[sx5]) {
                                 line->SetLineColor(uip);
                                 line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                              } else if (sy5<=fEnvelope[sx5]) {
                                 dx1 = sx4;
                                 dy1 = sy4;
                                 if (dcp!=0) v = (-ddp-dap*dx1-dbp*dy1)/dcp;
                                 else        v = (iv1+iv2+iv4)/3;
                                 iv = (Int_t)v;
                                 ColorModel(iv,ui1,ui2,ui3);
                                 line->SetLineColor(fNewColorIndex);
                                 line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                              }
                              sy5 = fEnvelope[sx4];
                           }
                           sx5 = sx4;
                        }
                        sx2 = x3;
                        sy2 = y3;
                        sx3 = x4;
                        sy3 = y4;
                        if (sx3<sx2) {
                           sx4 = sx2;
                           sy4 = sy2;
                           sx2 = sx3;
                           sy2 = sy3;
                           sx3 = sx4;
                           sy3 = sy4;
                        }
                        sdx2 = 0;
                        pom1 = sy3-sy2;
                        pom2 = sx3-sx2;
                        if (pom2!=0) sdx2 = pom1/pom2;
                        pom1 = sy2;
                        pom2 = sx2;
                        sdy2 = pom1-sdx2*pom2;
                        for (sx4=sx2,sx5=sx2,sy5=sy2;sx4<=sx3;sx4++) {
                           pom1 = sx4;
                           sdy4 = sdx2*pom1+sdy2;
                           sy4  = (Int_t)sdy4;
                           if (sy4<=fEnvelope[sx4]) {
                              fEnvelope[sx4] = sy4;
                              if (fShading==kNotShaded) {
                                 line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                              } else {
                                 dx1 = sx4;
                                 dy1 = sy4;
                                 if (dc!=0) v = (-dd-da*dx1-db*dy1)/dc;
                                 else       v =(iv1+iv2+iv4)/3;
                                 iv = (Int_t)v;
                                 ColorModel(iv,ui1,ui2,ui3);
                                 line->SetLineColor(fNewColorIndex);
                                 line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                              }
                              sy5 = sy4;
                           } else {
                              sy4 = fEnvelope[sx4];
                              if (fShading==kNotShaded&&sy5<=fEnvelope[sx5]) {
                                 line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                              } else if (sy5<=fEnvelope[sx5]) {
                                 dx1 = sx4;
                                 dy1 = sy4;
                                 if (dc!=0) v = (-dd-da*dx1-db*dy1)/dc;
                                 else       v =(iv1+iv2+iv4)/3;
                                 iv = (Int_t)v;
                                 ColorModel(iv,ui1,ui2,ui3);
                                 line->SetLineColor(fNewColorIndex);
                                 line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                              }
                              sy5 = fEnvelope[sx4];
                           }
                           sx5 = sx4;
                        }
                     }
                  }
               } else {
                  if (((flag==0)&&(smer==0))||((flag!=0)&&(smer!=0))) {
                     s1 = q1;
                     t1 = (Int_t)TMath::Max(q2-1,0);
                     s2 = q1;
                     t2 = (Int_t)TMath::Min(q2+2,w2);
                  } else if (((flag!=0)&&(smer==0))||((flag==0)&&(smer!=0))) {
                     s1 = (Int_t)TMath::Max(q1-1,0);
                     t1 = q2;
                     s2 = (Int_t)TMath::Min(q1+2,w1);
                     t2 = q2;
                  }
                  if (turni==1) {
                     i1 = s1;
                     i2 = s2;
                  } else {
                     i1 = w1-s1;
                     i2 = w1-s2;
                  }
                  if (turnj==1) {
                     j1 = t1;
                     j2 = t2;
                  } else {
                     j1 = w2-t1;
                     j2 = w2-t2;
                  }
                  Transform(i1,j1,0);
                  x3 = fXt;
                  y3 = fYt;
                  Transform(i2,j2,0);
                  x4    = fXt;
                  y4    = fYt;
                  bezx1 = x1+(x2-x1)/3;
                  bezx2 = x1+2*(x2-x1)/3;
                  bezy1 = y1+(y2-y3)/6;
                  bezy2 = y2-(y4-y1)/6;
                  if (x1<=x2) {
                     if (bezx1<=x1) {
                        bezx1 = x1;
                        bezy1 = y1;
                     }
                     if (bezx1>=x2) {
                        bezx1 = x2;
                        bezy1 = y2;
                     }
                     if (bezx2<=x1) {
                        bezx2 = x1;
                        bezy2 = y1;
                     }
                     if (bezx2>=x2) {
                        bezx2 = x2;
                        bezy2 = y2;
                     }
                     fBzX[0] = x1;
                     fBzY[0] = y1;
                     fBzX[1] = (Int_t)bezx1;
                     fBzY[1] = (Int_t)bezy1;
                     fBzX[2] = (Int_t)bezx2;
                     fBzY[2] = (Int_t)bezy2;
                     fBzX[3] = x2;
                     fBzY[3] = y2;
                     for (bezf=0;bezf<1.01;bezf+=0.1) {
                        BezierSmoothing(bezf);
                        if (bezf==0) {
                           ibezx1 = (Int_t)(fGbezx+0.5);
                           ibezy1 = (Int_t)(fGbezy+0.5);
                        } else {
                           ibezx2 = ibezx1;
                           ibezy2 = ibezy1;
                           ibezx1 = (Int_t)(fGbezx+0.5);
                           ibezy1 = (Int_t)(fGbezy+0.5);
                           Envelope(ibezx2,ibezy2,ibezx1,ibezy1);
                           if (fLine!=0) {
                              if (fLine==1) {
                                 fXe = ibezx1;
                                 fYe = ibezy1;
                              }
                              line->PaintLine(gPad->PixeltoX(fXs),gPad->PixeltoY(fYs)+1,gPad->PixeltoX(fXe),gPad->PixeltoY(fYe)+1);
                           }
                        }
                     }
                  } else if (x1>x2) {
                     if (bezx1>=x1) {
                        bezx1 = x1;
                        bezy1 = y1;
                     }
                     if (bezx1<=x2) {
                        bezx1 = x2;
                        bezy1 = y2;
                     }
                     if (bezx2>=x1) {
                        bezx2 = x1;
                        bezy2 = y1;
                     }
                     if (bezx2<=x2) {
                        bezx2 = x2;
                        bezy2 = y2;
                     }
                     fBzX[0] = x1;
                     fBzY[0] = y1;
                     fBzX[1] = (Int_t)bezx1;
                     fBzY[1] = (Int_t)bezy1;
                     fBzX[2] = (Int_t)bezx2;
                     fBzY[2] = (Int_t)bezy2;
                     fBzX[3] = x2;
                     fBzY[3] = y2;
                     for (bezf=0;bezf<1.01;bezf+=0.1) {
                        BezierSmoothing(bezf);
                        if (bezf==0) {
                           ibezx1 = (Int_t)(fGbezx+0.5);
                           ibezy1 = (Int_t)(fGbezy+0.5);
                        } else {
                           ibezx2 = ibezx1;
                           ibezy2 = ibezy1;
                           ibezx1 = (Int_t)(fGbezx+0.5);
                           ibezy1 = (Int_t)(fGbezy+0.5);
                           Envelope(ibezx1,ibezy1,ibezx2,ibezy2);
                           if (fLine!=0) {
                              if (fLine==1) {
                                 fXe = ibezx2;
                                 fYe = ibezy2;
                              }
                              line->PaintLine(gPad->PixeltoX(fXs),gPad->PixeltoY(fYs)+1,gPad->PixeltoX(fXe),gPad->PixeltoY(fYe)+1);
                           }
                        }
                     }
                  }
               }
               break;
            case kDisplayModeContours:
               if ((q1!=q2||smer!=0)&&flag==1) {
                  s1 = q1+1;
                  t1 = q2;
                  s2 = q1;
                  t2 = q2;
                  s3 = q1;
                  t3 = q2+1;
                  s4 = q1+1;
                  t4 = q2+1;
                  if (turni==1) {
                     i1 = (Int_t)TMath::Min(w1,s1);
                     i2 = (Int_t)TMath::Min(w1,s2);
                     i3 = (Int_t)TMath::Min(w1,s3);
                     i4 = (Int_t)TMath::Min(w1,s4);
                  } else {
                     i1 = (Int_t)TMath::Max(w1-s1,0);
                     i2 = (Int_t)TMath::Max(w1-s2,0);
                     i3 = (Int_t)TMath::Max(w1-s3,0);
                     i4 = (Int_t)TMath::Max(w1-s4,0);
                  }
                  if (turnj==1) {
                     j1 = (Int_t)TMath::Min(w2,t1);
                     j2 = (Int_t)TMath::Min(w2,t2);
                     j3 = (Int_t)TMath::Min(w2,t3);
                     j4 = (Int_t)TMath::Min(w2,t4);
                  } else {
                     j1 = (Int_t)TMath::Max(w2-t1,0);
                     j2 = (Int_t)TMath::Max(w2-t2,0);
                     j3 = (Int_t)TMath::Max(w2-t3,0);
                     j4 = (Int_t)TMath::Max(w2-t4,0);
                  }
                  Transform(i1,j1,0);
                  dx1 = fDxspline;
                  dy1 = fDyspline;
                  z1  = fZ;
                  z1l = fZeq;
                  Transform(i2,j2,0);
                  dx2 = fDxspline;
                  dy2 = fDyspline;
                  z2  = fZ;
                  z2l = fZeq;
                  Transform(i3,j3,0);
                  dx3 = fDxspline;
                  dy3 = fDyspline;
                  z3  = fZ;
                  z3l = fZeq;
                  Transform(i4,j4,0);
                  dx4 = fDxspline;
                  dy4 = fDyspline;
                  z4  = fZ;
                  z4l = fZeq;
                  zh  = (Double_t)TMath::Max(z1,z2);
                  zh  = (Double_t)TMath::Max(zh,z3);
                  zh  = (Double_t)TMath::Max(zh,z4);
                  zl  = (Double_t)TMath::Min(z1l,z2l);
                  zl  = (Double_t)TMath::Min(zl,z3l);
                  zl  = (Double_t)TMath::Min(zl,z4l);
                  i1 = (Int_t)(zl/dcount_reg+1);
                  if (z1!=z2||z2!=z3||z3!=z4) {
                     do {
                        fZ = i1*dcount_reg;
                        switch (fZscale) {
                           case kZScaleLog:
                              if (fZ>=1.0) fZ = log(fZ);
                              else         fZ = 0;
                              break;
                           case kZScaleSqrt:
                              if (fZ>0) fZ = sqrt(fZ);
                              else      fZ = 0;
                              break;
                        }
                        if (fModeGroup!=kModeGroupSimple) {
                           v  = ColorCalculation(dx1,dy1,fZ,dx2,dy2,fZ,dx4,dy4,fZ);
                           v  = v*fLevels+0.5;
                           iv = fLevels-(Int_t)v;
                           ColorModel(iv,ui1,ui2,ui3);
                           line->SetLineColor(fNewColorIndex);
                        }
                        if (fZ>zh) goto eqend;
                        i1   += 1;
                        ekv   = 0;
                        stvor = 0;
                        if ((z2<=fZ&&fZ<z1)||(z2<fZ&&fZ<=z1)) {
                           xb = (fZ-z2)*(dx1-dx2)/(z1-z2)+dx2;
                           goto ekvi1;
                        }
                        if ((z1<=fZ&&fZ<z2)||(z1<fZ&&fZ<=z2)) {
                           xb = (fZ-z1)*(dx2-dx1)/(z2-z1)+dx1;
                           goto ekvi1;
                        }
                        if (z2==fZ&&fZ==z1) {
                           xb     = dx2;
ekvi1:
                           yb     = dy2;
                           ekv    = 1;
                           x5     = xb;
                           y5     = yb;
                           stvor += 1;
                        }
                        if ((z1<=fZ&&fZ<z4)||(z1<fZ&&fZ<=z4)) {
                           ya = (fZ-z1)*(dy4-dy1)/(z4-z1)+dy1;
                           goto ekvi2;
                        }
                        if ((z4<=fZ&&fZ<z1)||(z4<fZ&&fZ<=z1)) {
                           ya = (fZ-z4)*(dy1-dy4)/(z1-z4)+dy4;
                           goto ekvi2;
                        }
                        if (z4==fZ&&fZ==z1) {
                           ya = dy1;
ekvi2:
                           xa = dx1;
                           if (ekv==1) {
                              Slice(xa,ya,xb,yb,line);
                              stvor += 1;
                           }
                           xb  = xa;
                           yb  = ya;
                           ekv = 1;
                        }
                        if ((z3<=fZ&&fZ<z4)||(z3<fZ&&fZ<=z4)) {
                           xa = (fZ-z3)*(dx4-dx3)/(z4-z3)+dx3;
                           goto ekvi3;
                        }
                        if ((z4<=fZ&&fZ<z3)||(z4<fZ&&fZ<=z3)) {
                           xa = (fZ-z4)*(dx3-dx4)/(z3-z4)+dx4;
                           goto ekvi3;
                        }
                        if (z4==fZ&&fZ==z3) {
                           xa = dx4;
ekvi3:
                           ya = dy4;
                           if (ekv==1) {
                              Slice(xa,ya,xb,yb,line);
                              stvor += 1;
                           }
                           xb  = xa;
                           yb  = ya;
                           ekv = 1;
                        }
                        if ((z2<=fZ&&fZ<z3)||(z2<fZ&&fZ<=z3)) {
                           ya = (fZ-z2)*(dy3-dy2)/(z3-z2)+dy2;
                           goto ekvi4;
                        }
                        if ((z3<=fZ&&fZ<z2)||(z3<fZ&&fZ<=z2)) {
                           ya = (fZ-z3)*(dy2-dy3)/(z2-z3)+dy3;
                           goto ekvi4;
                        }
                        if (z3==fZ&&fZ==z2) {
                           ya = dy3;
ekvi4:
                           xa = dx3;
                           if (ekv==1) {
                              Slice(xa,ya,xb,yb,line);
                              stvor += 1;
                           }
                           if (stvor==4) Slice(xa,ya,x5,y5,line);
                        }
                     } while (fZ<=zh);
eqend:
                     CopyEnvelope(dx1,dx3,dy1,dy3);
                  }
               }
               break;
            case kDisplayModeBars:
            case kDisplayModeBarsX:
            case kDisplayModeBarsY:
               if ((q1!=q2||smer!=0)&&flag==1) {
                  s1 = q1+1;
                  t1 = q2;
                  s2 = q1;
                  t2 = q2;
                  s3 = q1;
                  t3 = q2+1;
                  s4 = q1+1;
                  t4 = q2+1;
               }
               if (turni==1) {
                  if (fDisplayMode==kDisplayModeBarsX) {
                     if (s1<=w1&&s2<=w1&&s3<=w1&&s4<=w1) {
                        i1 = s1;
                        i2 = s2;
                        i3 = s3;
                        i4 = s4;
                     }
                  } else {
                     i1 = (Int_t)TMath::Min(w1,s1);
                     i2 = (Int_t)TMath::Min(w1,s2);
                     i3 = (Int_t)TMath::Min(w1,s3);
                     i4 = (Int_t)TMath::Min(w1,s4);
                  }
               } else {
                  if (fDisplayMode==kDisplayModeBarsX) {
                     if (s1<=w1&&s2<=w1&&s3<=w1&&s4<=w1) {
                        i1 = w1-s1;
                        i2 = w1-s2;
                        i3 = w1-s3;
                        i4 = w1-s4;
                     }
                  } else {
                     i1 = (Int_t)TMath::Max(w1-s1,0);
                     i2 = (Int_t)TMath::Max(w1-s2,0);
                     i3 = (Int_t)TMath::Max(w1-s3,0);
                     i4 = (Int_t)TMath::Max(w1-s4,0);
                  }
               }
               if (turnj==1) {
                  if (fDisplayMode==kDisplayModeBarsY) {
                     if (t1<=w2&&t2<=w2&&t3<=w2&&t4<=w2) {
                        j1 = t1;
                        j2 = t2;
                        j3 = t3;
                        j4 = t4;
                     }
                  } else {
                     j1 = (Int_t)TMath::Min(w2,t1);
                     j2 = (Int_t)TMath::Min(w2,t2);
                     j3 = (Int_t)TMath::Min(w2,t3);
                     j4 = (Int_t)TMath::Min(w2,t4);
                  }
               } else {
                  if (fDisplayMode==kDisplayModeBarsY) {
                     if (t1<=w2&&t2<=w2&&t3<=w2&&t4<=w2) {
                        j1 = w2-t1;
                        j2 = w2-t2;
                        j3 = w2-t3;
                        j4 = w2-t4;
                     }
                  } else {
                     j1 = (Int_t)TMath::Max(w2-t1,0);
                     j2 = (Int_t)TMath::Max(w2-t2,0);
                     j3 = (Int_t)TMath::Max(w2-t3,0);
                     j4 = (Int_t)TMath::Max(w2-t4,0);
                  }
               }
               Transform(i1,j1,0);
               x1  = fXt;
               dx1 = fDxspline;
               dy1 = fDyspline;
               z1  = fZ;
               Transform(i2,j2,0);
               x2  = fXt;
               dx2 = fDxspline;
               dy2 = fDyspline;
               z2  = fZ;
               Transform(i3,j3,0);
               x3  = fXt;
               dx3 = fDxspline;
               dy3 = fDyspline;
               z3  = fZ;
               Transform(i4,j4,0);
               x4  = fXt;
               y4  = fYt;
               dx4 = fDxspline;
               dy4 = fDyspline;
               z4  = fZ;
               Transform(i1,j1,-1);
               ix5 = fXt;
               iy5 = fYt;
               Transform(i2,j2,-1);
               x6  = fXt;
               y6  = fYt;
               Transform(i3,j3,-1);
               x7  = fXt;
               y7  = fYt;
               Transform(i4,j4,-1);
               y8  = fYt;
               y1  = iy5+(y4-y8);
               y2  = y6+(y4-y8);
               y3  = y7+(y4-y8);
               if ((fDisplayMode==kDisplayModeBars)&&(q1!=q2||smer!=0)&&(flag==1)) {
                  EnvelopeBars(ix5,iy5,x6,y6);
                  if (fLine!=0) {
                     if (fLine==1) {
                        fXe = x6;
                        fYe = y6;
                     }
                     line->PaintLine(gPad->PixeltoX(fXs),gPad->PixeltoY(fYs)+1,gPad->PixeltoX(fXe),gPad->PixeltoY(fYe)+1);
                  }
                  EnvelopeBars(x6,y6,x7,y7);
                  if (fLine!=0) {
                     if (fLine==1) {
                        fXe = x7;
                        fYe = y7;
                     }
                     line->PaintLine(gPad->PixeltoX(fXs),gPad->PixeltoY(fYs)+1,gPad->PixeltoX(fXe),gPad->PixeltoY(fYe)+1);
                  }
                  EnvelopeBars(ix5,iy5,x1,y1);
                  if (fLine!=0) {
                     if (fLine==1) {
                        fXe = x1;
                        fYe = y1;
                     }
                     line->PaintLine(gPad->PixeltoX(fXs),gPad->PixeltoY(fYs)+1,gPad->PixeltoX(fXe),gPad->PixeltoY(fYe)+1);
                  }
                  EnvelopeBars(x6,y6,x2,y2);
                  if (fLine!=0) {
                     if (fLine==1) {
                        fXe = x2;
                        fYe = y2;
                     }
                     line->PaintLine(gPad->PixeltoX(fXs),gPad->PixeltoY(fYs)+1,gPad->PixeltoX(fXe),gPad->PixeltoY(fYe)+1);
                  }
                  EnvelopeBars(x7,y7,x3,y3);
                  if (fLine!=0) {
                     if (fLine==1) {
                        fXe = x3;
                        fYe = y3;
                     }
                     line->PaintLine(gPad->PixeltoX(fXs),gPad->PixeltoY(fYs)+1,gPad->PixeltoX(fXe),gPad->PixeltoY(fYe)+1);
                  }
                  if (fModeGroup!=kModeGroupSimple) {
                     v   = ColorCalculation(dx1,dy1,z4,dx2,dy2,z4,dx4,dy4,z4);
                     v   = v*fLevels+0.5;
                     iv  = fLevels-(Int_t)v;
                     uip = fNewColorIndex;
                     ColorModel(iv,ui1,ui2,ui3);
                     line->SetLineColor(fNewColorIndex);
                     sx1 = x1;
                     sy1 = y1;
                     sx2 = x2;
                     sy2 = y2;
                     sx3 = x4;
                     sy3 = y4;
                     if (sx2<sx1) {
                        sx4 = sx1;
                        sy4 = sy1;
                        sx1 = sx2;
                        sy1 = sy2;
                        sx2 = sx4;
                        sy2 = sy4;
                     }
                     if (sx3<sx1) {
                        sx4 = sx1;
                        sy4 = sy1;
                        sx1 = sx3;
                        sy1 = sy3;
                        sx3 = sx4;
                        sy3 = sy4;
                     }
                     if (sy2<sy3) {
                        sx4 = sx2;
                        sy4 = sy2;
                        sx2 = sx3;
                        sy2 = sy3;
                        sx3 = sx4;
                        sy3 = sy4;
                     }
                     sdx1 = 0;
                     sdx2 = 0;
                     sdx3 = 0;
                     pom1 = sy2-sy1;
                     pom2 = sx2-sx1;
                     if (pom2!=0) sdx1 = pom1/pom2;
                     pom1 = sy1;
                     pom2 = sx1;
                     sdy1 = pom1-sdx1*pom2;
                     pom1 = sy3-sy1;
                     pom2 = sx3-sx1;
                     if (pom2!=0) sdx2 = pom1/pom2;
                     pom1 = sy1;
                     pom2 = sx1;
                     sdy2 = pom1-sdx2*pom2;
                     pom1 = sy3-sy2;
                     pom2 = sx3-sx2;
                     if (pom2!=0) sdx3 = pom1/pom2;
                     pom1 = sy2;
                     pom2 = sx2;
                     sdy3 = pom1-sdx3*pom2;
                     if (sx2<sx3) {
                        if (sx1!=sx2) {
                           for (sx4=sx1;sx4<=sx2;sx4++) {
                              pom1 = sx4;
                              sdy4 = sdx1*pom1+sdy1;
                              sy4  = (Int_t)sdy4;
                              if (sx3!=sx1) {
                                 sdy4 = sdx2*pom1+sdy2;
                                 sy5  = (Int_t)sdy4;
                                 y5   = fEnvelope[sx4];
                                 if (sy4<sy5) {
                                    pom1 = sy4;
                                    sy4 = sy5;
                                    sy5 = (Int_t)pom1;
                                 }
                                 if ((sy4<=y5)||(sy5<y5)) {
                                    sy4 = (Int_t)TMath::Min(sy4,(Int_t)y5);
                                    sy5 = (Int_t)TMath::Min(sy5,(Int_t)y5);
                                    line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx4),gPad->PixeltoY(sy5)+1);
                                 }
                              }
                           }
                        }
                        if (sx2!=sx3) {
                           for (sx4=sx2;sx4<=sx3;sx4++) {
                              pom1 = sx4;
                              sdy4 = sdx3*pom1+sdy3;
                              sy4  = (Int_t)sdy4;
                              if (sx3!=sx1) {
                                 sdy4 = sdx2*pom1+sdy2;
                                 sy5  = (Int_t)sdy4;
                                 y5   = fEnvelope[sx4];
                                 if (sy4<sy5) {
                                    pom1 = sy4;
                                    sy4  = sy5;
                                    sy5  = (Int_t)pom1;
                                 }
                                 if ((sy4<=y5)||(sy5<y5)) {
                                    sy4 = (Int_t)TMath::Min(sy4,(Int_t)y5);
                                    sy5 = (Int_t)TMath::Min(sy5,(Int_t)y5);
                                    line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx4),gPad->PixeltoY(sy5)+1);
                                 }
                              }
                           }
                        }
                     } else {
                        if (sx3!=sx1) {
                           for (sx4=sx1;sx4<=sx3;sx4++) {
                              pom1 = sx4;
                              sdy4 = sdx2*pom1+sdy2;
                              sy4  = (Int_t)sdy4;
                              if (sx2!=sx1) {
                                 sdy4 = sdx1*pom1+sdy1;
                                 sy5  = (Int_t)sdy4;
                                 y5   = fEnvelope[sx4];
                                 if (sy4<sy5) {
                                    pom1 = sy4;
                                    sy4  = sy5;
                                    sy5  = (Int_t)pom1;
                                 }
                                 if ((sy4<=y5)||(sy5<y5)) {
                                    sy4 = (Int_t)TMath::Min(sy4,(Int_t)y5);
                                    sy5 = (Int_t)TMath::Min(sy5,(Int_t)y5);
                                    line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx4),gPad->PixeltoY(sy5)+1);
                                 }
                              }
                           }
                        }
                        if (sx2!=sx3) {
                           for (sx4=sx3;sx4<=sx2;sx4++) {
                              pom1 = sx4;
                              sdy4 = sdx3*pom1+sdy3;
                              sy4  = (Int_t)sdy4;
                              if (sx2!=sx1) {
                                 sdy4 = sdx1*pom1+sdy1;
                                 sy5  = (Int_t)sdy4;
                                 y5   = fEnvelope[sx4];
                                 if (sy4<sy5) {
                                    pom1 = sy4;
                                    sy4  = sy5;
                                    sy5  = (Int_t)pom1;
                                 }
                                 if ((sy4<=y5)||(sy5<y5)) {
                                    sy4 = (Int_t)TMath::Min(sy4,(Int_t)y5);
                                    sy5 = (Int_t)TMath::Min(sy5,(Int_t)y5);
                                    line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx4),gPad->PixeltoY(sy5)+1);
                                 }
                              }
                           }
                        }
                     }
                     sx1 = x2;
                     sy1 = y2;
                     sx2 = x3;
                     sy2 = y3;
                     sx3 = x4;
                     sy3 = y4;
                     if (sx2<sx1) {
                        sx4 = sx1;
                        sy4 = sy1;
                        sx1 = sx2;
                        sy1 = sy2;
                        sx2 = sx4;
                        sy2 = sy4;
                     }
                     if (sx3<sx1) {
                        sx4 = sx1;
                        sy4 = sy1;
                        sx1 = sx3;
                        sy1 = sy3;
                        sx3 = sx4;
                        sy3 = sy4;
                     }
                     if (sy2<sy3) {
                        sx4 = sx2;
                        sy4 = sy2;
                        sx2 = sx3;
                        sy2 = sy3;
                        sx3 = sx4;
                        sy3 = sy4;
                     }
                     sdx1 = 0;
                     sdx2 = 0;
                     sdx3 = 0;
                     pom1 = sy2-sy1;
                     pom2 = sx2-sx1;
                     if (pom2!=0) sdx1 = pom1/pom2;
                     pom1 = sy1;
                     pom2 = sx1;
                     sdy1 = pom1-sdx1*pom2;
                     pom1 = sy3-sy1;
                     pom2 = sx3-sx1;
                     if (pom2!=0) sdx2 = pom1/pom2;
                     pom1 = sy1;
                     pom2 = sx1;
                     sdy2 = pom1-sdx2*pom2;
                     pom1 = sy3-sy2;
                     pom2 = sx3-sx2;
                     if (pom2!=0) sdx3 = pom1/pom2;
                     pom1 = sy2;
                     pom2 = sx2;
                     sdy3 = pom1-sdx3*pom2;
                     if (sx2<sx3) {
                        if (sx1!=sx2) {
                           for (sx4=sx1;sx4<=sx2;sx4++) {
                              pom1 = sx4;
                              sdy4 = sdx1*pom1+sdy1;
                              sy4  = (Int_t)sdy4;
                              if (sx3!=sx1) {
                                 sdy4 = sdx2*pom1+sdy2;
                                 sy5  = (Int_t)sdy4;
                                 y5   = fEnvelope[sx4];
                                 if (sy4<sy5) {
                                    pom1 = sy4;
                                    sy4  = sy5;
                                    sy5  = (Int_t)pom1;
                                 }
                                 if ((sy4<=y5)||(sy5<y5)) {
                                    sy4 = (Int_t)TMath::Min(sy4,(Int_t)y5);
                                    sy5 = (Int_t)TMath::Min(sy5,(Int_t)y5);
                                    line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx4),gPad->PixeltoY(sy5)+1);
                                 }
                              }
                           }
                        }
                        if (sx2!=sx3) {
                           for (sx4=sx2;sx4<=sx3;sx4++) {
                              pom1 = sx4;
                              sdy4 = sdx3*pom1+sdy3;
                              sy4  = (Int_t)sdy4;
                              if (sx3!=sx1) {
                                 sdy4 = sdx2*pom1+sdy2;
                                 sy5  = (Int_t)sdy4;
                                 y5   = fEnvelope[sx4];
                                 if (sy4<sy5) {
                                    pom1 = sy4;
                                    sy4  = sy5;
                                    sy5  = (Int_t)pom1;
                                 }
                                 if ((sy4<=y5)||(sy5<y5)) {
                                    sy4 = (Int_t)TMath::Min(sy4,(Int_t)y5);
                                    sy5 = (Int_t)TMath::Min(sy5,(Int_t)y5);
                                    line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx4),gPad->PixeltoY(sy5)+1);
                                 }
                              }
                           }
                        }
                     } else {
                        if (sx3!=sx1) {
                           for (sx4=sx1;sx4<=sx3;sx4++) {
                              pom1 = sx4;
                              sdy4 = sdx2*pom1+sdy2;
                              sy4  = (Int_t)sdy4;
                              if (sx2!=sx1) {
                                 sdy4 = sdx1*pom1+sdy1;
                                 sy5  = (Int_t)sdy4;
                                 y5 = fEnvelope[sx4];
                                 if (sy4<sy5) {
                                    pom1 = sy4;
                                    sy4  = sy5;
                                    sy5  = (Int_t)pom1;
                                 }
                                 if ((sy4<=y5)||(sy5<y5)) {
                                    sy4 = (Int_t)TMath::Min(sy4,(Int_t)y5);
                                    sy5 = (Int_t)TMath::Min(sy5,(Int_t)y5);
                                    line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx4),gPad->PixeltoY(sy5)+1);
                                 }
                              }
                           }
                        }
                        if (sx2!=sx3) {
                           for (sx4=sx3;sx4<=sx2;sx4++) {
                              pom1 = sx4;
                              sdy4 = sdx3*pom1+sdy3;
                              sy4  = (Int_t)sdy4;
                              if (sx2!=sx1) {
                                 sdy4 = sdx1*pom1+sdy1;
                                 sy5  = (Int_t)sdy4;
                                 y5   = fEnvelope[sx4];
                                 if (sy4<sy5) {
                                    pom1 = sy4;
                                    sy4  = sy5;
                                    sy5  = (Int_t)pom1;
                                 }
                                 if ((sy4<=y5)||(sy5<y5)) {
                                    sy4  = (Int_t)TMath::Min(sy4,(Int_t)y5);
                                    sy5  = (Int_t)TMath::Min(sy5,(Int_t)y5);
                                    line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx4),gPad->PixeltoY(sy5)+1);
                                 }
                              }
                           }
                        }
                     }
                     line->SetLineColor(uip);
                  }
                  EnvelopeBars(x1,y1,x2,y2);
                  if (fLine!=0) {
                     if (fLine==1) {
                        fXe = x2;
                        fYe = y2;
                     }
                     line->PaintLine(gPad->PixeltoX(fXs),gPad->PixeltoY(fYs)+1,gPad->PixeltoX(fXe),gPad->PixeltoY(fYe)+1);
                  }
                  EnvelopeBars(x2,y2,x3,y3);
                  if (fLine!=0) {
                     if (fLine==1) {
                        fXe = x3;
                        fYe = y3;
                     }
                     line->PaintLine(gPad->PixeltoX(fXs),gPad->PixeltoY(fYs)+1,gPad->PixeltoX(fXe),gPad->PixeltoY(fYe)+1);
                  }
                  EnvelopeBars(x1,y1,x4,y4);
                  if (fLine!=0) {
                     if (fLine==1) {
                        fXe = x4;
                        fYe = y4;
                     }
                     line->PaintLine(gPad->PixeltoX(fXs),gPad->PixeltoY(fYs)+1,gPad->PixeltoX(fXe),gPad->PixeltoY(fYe)+1);
                  }
                  EnvelopeBars(x4,y4,x3,y3);
                  if (fLine!=0) {
                     if (fLine==1) {
                        fXe = x3;
                        fYe = y3;
                     }
                     line->PaintLine(gPad->PixeltoX(fXs),gPad->PixeltoY(fYs)+1,gPad->PixeltoX(fXe),gPad->PixeltoY(fYe)+1);
                  }
               } else if ((fDisplayMode==kDisplayModeBarsY)&&(((flag!=0)&&(smer==0))||((flag==0)&&(smer!=0)))) {
                  EnvelopeBars(ix5,iy5,x6,y6);
                  if (fLine!=0) {
                     if (fLine==1) {
                        fXe = x6;
                        fYe = y6;
                     }
                     line->PaintLine(gPad->PixeltoX(fXs),gPad->PixeltoY(fYs)+1,gPad->PixeltoX(fXe),gPad->PixeltoY(fYe)+1);
                  }
                  EnvelopeBars(x1,y1,ix5,iy5);
                  if (fLine!=0) {
                     if (fLine==1) {
                        fXe = ix5;
                        fYe = iy5;
                     }
                     line->PaintLine(gPad->PixeltoX(fXs),gPad->PixeltoY(fYs)+1,gPad->PixeltoX(fXe),gPad->PixeltoY(fYe)+1);
                  }
                  EnvelopeBars(x2,y2,x6,y6);
                  if (fLine!=0) {
                     if (fLine==1) {
                        fXe = x6;
                        fYe = y6;
                     }
                     line->PaintLine(gPad->PixeltoX(fXs),gPad->PixeltoY(fYs)+1,gPad->PixeltoX(fXe),gPad->PixeltoY(fYe)+1);
                  }
                  if (fModeGroup!=kModeGroupSimple) {
                     v   = ColorCalculation(dx1,dy1,z4,dx2,dy2,z4,dx4,dy4,z4);
                     v   = v*fLevels+0.5;
                     iv  = fLevels-(Int_t)v;
                     uip = fNewColorIndex;
                     ColorModel(iv,ui1,ui2,ui3);
                     line->SetLineColor(fNewColorIndex);
                  }
                  EnvelopeBars(x1,y1,x2,y2);
                  if (fLine!=0) {
                     if (fLine==1) {
                        fXe = x2;
                        fYe = y2;
                     }
                     line->PaintLine(gPad->PixeltoX(fXs),gPad->PixeltoY(fYs)+1,gPad->PixeltoX(fXe),gPad->PixeltoY(fYe)+1);
                  }
                  if (fModeGroup!=kModeGroupSimple) {
                     line->SetLineColor(uip);
                  }
               } else if ((fDisplayMode==kDisplayModeBarsX)&&(((flag==0)&&(smer==0))||((flag!=0)&&(smer!=0)))) {
                  EnvelopeBars(x7,y7,x6,y6);
                  if (fLine!=0) {
                     if (fLine==1) {
                        fXe = x6;
                        fYe = y6;
                     }
                     line->PaintLine(gPad->PixeltoX(fXs),gPad->PixeltoY(fYs)+1,gPad->PixeltoX(fXe),gPad->PixeltoY(fYe)+1);
                  }
                  EnvelopeBars(x2,y2,x6,y6);
                  if (fLine!=0) {
                     if (fLine==1) {
                        fXe = x6;
                        fYe = y6;
                     }
                     line->PaintLine(gPad->PixeltoX(fXs),gPad->PixeltoY(fYs)+1,gPad->PixeltoX(fXe),gPad->PixeltoY(fYe)+1);
                  }
                  EnvelopeBars(x3,y3,x7,y7);
                  if (fLine!=0) {
                     if (fLine==1) {
                        fXe = x7;
                        fYe = y7;
                     }
                     line->PaintLine(gPad->PixeltoX(fXs),gPad->PixeltoY(fYs)+1,gPad->PixeltoX(fXe),gPad->PixeltoY(fYe)+1);
                  }
                  if (fModeGroup!=kModeGroupSimple) {
                     v   = ColorCalculation(dx1,dy1,z4,dx2,dy2,z4,dx4,dy4,z4);
                     v   = v*fLevels+0.5;
                     iv  = fLevels-(Int_t)v;
                     uip = fNewColorIndex;
                     ColorModel(iv,ui1,ui2,ui3);
                     line->SetLineColor(fNewColorIndex);
                  }
                  EnvelopeBars(x3,y3,x2,y2);
                  if (fLine!=0) {
                     if (fLine==1) {
                        fXe = x2;
                        fYe = y2;
                     }
                     line->PaintLine(gPad->PixeltoX(fXs),gPad->PixeltoY(fYs)+1,gPad->PixeltoX(fXe),gPad->PixeltoY(fYe)+1);
                  }
                  if (fModeGroup!=kModeGroupSimple) {
                     line->SetLineColor(uip);
                  }
               }
               break;
            case kDisplayModeLinesX:
               if (fModeGroup==kModeGroupSimple) {
                  if (((flag==0)&&(smer==0))||((flag!=0)&&(smer!=0))) {
                     if (fBezier==kNoBezierInterpol) {
                        Envelope(x1,y1,x2,y2);
                        if (fLine!=0) {
                           if (fLine==1) {
                              fXe = x2;
                              fYe = y2;
                           }
                           line->PaintLine(gPad->PixeltoX(fXs),gPad->PixeltoY(fYs)+1,gPad->PixeltoX(fXe),gPad->PixeltoY(fYe)+1);
                        }
                     } else {
                        s1 = q1;
                        t1 = (Int_t)TMath::Max(q2-1,0);
                        s2 = q1;
                        t2 = (Int_t)TMath::Min(q2+2,w2);
                        if (turni==1) {
                           i1 = s1;
                           i2 = s2;
                        } else {
                           i1 = (Int_t)TMath::Max(w1-s1,0);
                           i2 = (Int_t)TMath::Max(w1-s2,0);
                        }
                        if (turnj==1) {
                           j1 = t1;
                           j2 = t2;
                        } else {
                           j1 = (Int_t)TMath::Max(w2-t1,0);
                           j2 = (Int_t)TMath::Max(w2-t2,0);
                        }
                        Transform(i1,j1,0);
                        x3 = fXt;
                        y3 = fYt;
                        Transform(i2,j2,0);
                        x4    = fXt;
                        y4    = fYt;
                        bezx1 = x1+(x2-x1)/3;
                        bezx2 = x1+2*(x2-x1)/3;
                        bezy1 = y1+(y2-y3)/6;
                        bezy2 = y2-(y4-y1)/6;
                        if (x1<=x2) {
                           if (bezx1<=x1) {
                              bezx1 = x1;
                              bezy1 = y1;
                           }
                           if (bezx1>=x2) {
                              bezx1 = x2;
                              bezy1 = y2;
                           }
                           if (bezx2<=x1) {
                              bezx2 = x1;
                              bezy2 = y1;
                           }
                           if (bezx2>=x2) {
                              bezx2 = x2;
                              bezy2 = y2;
                           }
                           fBzX[0] = x1;
                           fBzY[0] = y1;
                           fBzX[1] = (Int_t)bezx1;
                           fBzY[1] = (Int_t)bezy1;
                           fBzX[2] = (Int_t)bezx2;
                           fBzY[2] = (Int_t)bezy2;
                           fBzX[3] = x2;
                           fBzY[3] = y2;
                           for (bezf=0;bezf<1.01;bezf+=0.1) {
                              BezierSmoothing(bezf);
                              if (bezf==0) {
                                 ibezx1 = (Int_t)(fGbezx+0.5);
                                 ibezy1 = (Int_t)(fGbezy+0.5);
                              } else {
                                 ibezx2 = ibezx1;
                                 ibezy2 = ibezy1;
                                 ibezx1 = (Int_t)(fGbezx+0.5);
                                 ibezy1 = (Int_t)(fGbezy+0.5);
                                 Envelope(ibezx2,ibezy2,ibezx1,ibezy1);
                                 if (fLine!=0) {
                                    if (fLine==1) {
                                       fXe = ibezx1;
                                       fYe = ibezy1;
                                    }
                                    line->PaintLine(gPad->PixeltoX(fXs),gPad->PixeltoY(fYs)+1,gPad->PixeltoX(fXe),gPad->PixeltoY(fYe)+1);
                                 }
                              }
                           }
                        } else if (x1>x2) {
                           if (bezx1>=x1) {
                              bezx1 = x1;
                              bezy1 = y1;
                           }
                           if (bezx1<=x2) {
                              bezx1 = x2;
                              bezy1 = y2;
                           }
                           if (bezx2>=x1) {
                              bezx2 = x1;
                              bezy2 = y1;
                           }
                           if (bezx2<=x2) {
                              bezx2 = x2;
                              bezy2 = y2;
                           }
                           fBzX[0] = x1;
                           fBzY[0] = y1;
                           fBzX[1] = (Int_t)bezx1;
                           fBzY[1] = (Int_t)bezy1;
                           fBzX[2] = (Int_t)bezx2;
                           fBzY[2] = (Int_t)bezy2;
                           fBzX[3] = x2;
                           fBzY[3] = y2;
                           for (bezf=0;bezf<1.01;bezf+=0.1) {
                              BezierSmoothing(bezf);
                              if (bezf==0) {
                                 ibezx1 = (Int_t)(fGbezx+0.5);
                                 ibezy1 = (Int_t)(fGbezy+0.5);
                              } else {
                                 ibezx2 = ibezx1;
                                 ibezy2 = ibezy1;
                                 ibezx1 = (Int_t)(fGbezx+0.5);
                                 ibezy1 = (Int_t)(fGbezy+0.5);
                                 Envelope(ibezx1,ibezy1,ibezx2,ibezy2);
                                 if (fLine!=0) {
                                    if (fLine==1) {
                                       fXe = ibezx2;
                                       fYe = ibezy2;
                                    }
                                    line->PaintLine(gPad->PixeltoX(fXs),gPad->PixeltoY(fYs)+1,gPad->PixeltoX(fXe),gPad->PixeltoY(fYe)+1);
                                 }
                              }
                           }
                        }
                     }
                  }
               } else {
                  if ((q1!=q2||smer!=0)&&flag==1) {
                     s1 = q1+1;
                     t1 = q2;
                     s2 = q1;
                     t2 = q2;
                     s3 = q1;
                     t3 = q2+1;
                     s4 = q1+1;
                     t4 = q2+1;
                     if (fShading==kShaded) {
                        sr1 = s1;
                        tr1 = (Int_t)TMath::Max(t1-1,0);
                        sr2 = s2;
                        tr2 = (Int_t)TMath::Max(t2-1,0);
                        sr3 = (Int_t)TMath::Max(s2-1,0);
                        tr3 = t2;
                        sr4 = (Int_t)TMath::Max(s3-1,0);
                        tr4 = t3;
                        sr5 = s3;
                        tr5 = t3+1;
                        sr6 = s4;
                        tr6 = t4+1;
                        sr7 = s4+1;
                        tr7 = t4;
                        sr8 = s1+1;
                        tr8 = t1;
                     }
                     if (turni==1) {
                        i1 = s1;
                        i2 = s2;
                        i3 = s3;
                        i4 = s4;
                     } else {
                        i1 = (Int_t)TMath::Max(w1-s1,0);
                        i2 = (Int_t)TMath::Max(w1-s2,0);
                        i3 = (Int_t)TMath::Max(w1-s3,0);
                        i4 = (Int_t)TMath::Max(w1-s4,0);
                        if (fShading==kShaded) {
                           sr1 = (Int_t)TMath::Max(w1-sr1,0);
                           sr2 = (Int_t)TMath::Max(w1-sr2,0);
                           sr3 = (Int_t)TMath::Max(w1-sr3,0);
                           sr4 = (Int_t)TMath::Max(w1-sr4,0);
                           sr5 = (Int_t)TMath::Max(w1-sr5,0);
                           sr6 = (Int_t)TMath::Max(w1-sr6,0);
                           sr7 = (Int_t)TMath::Max(w1-sr7,0);
                           sr8 = (Int_t)TMath::Max(w1-sr8,0);
                        }
                     }
                     if (turnj==1) {
                        j1 = t1;
                        j2 = t2;
                        j3 = t3;
                        j4 = t4;
                     } else {
                        j1 = (Int_t)TMath::Max(w2-t1,0);
                        j2 = (Int_t)TMath::Max(w2-t2,0);
                        j3 = (Int_t)TMath::Max(w2-t3,0);
                        j4 = (Int_t)TMath::Max(w2-t4,0);
                        if (fShading==kShaded) {
                           tr1 = (Int_t)TMath::Max(w2-tr1,0);
                           tr2 = (Int_t)TMath::Max(w2-tr2,0);
                           tr3 = (Int_t)TMath::Max(w2-tr3,0);
                           tr4 = (Int_t)TMath::Max(w2-tr4,0);
                           tr5 = (Int_t)TMath::Max(w2-tr5,0);
                           tr6 = (Int_t)TMath::Max(w2-tr6,0);
                           tr7 = (Int_t)TMath::Max(w2-tr7,0);
                           tr8 = (Int_t)TMath::Max(w2-tr8,0);
                        }
                     }
                     Transform(i1,j1,0);
                     x1  = fXt;
                     y1  = fYt;
                     dx1 = fDxspline;
                     dy1 = fDyspline;
                     z1  = fZ;
                     Transform(i2,j2,0);
                     x2  = fXt;
                     y2  = fYt;
                     dx2 = fDxspline;
                     dy2 = fDyspline;
                     z2  = fZ;
                     Transform(i3,j3,0);
                     x3  = fXt;
                     y3  = fYt;
                     dx3 = fDxspline;
                     dy3 = fDyspline;
                     z3  = fZ;
                     Transform(i4,j4,0);
                     x4  = fXt;
                     y4  = fYt;
                     dx4 = fDxspline;
                     dy4 = fDyspline;
                     z4  = fZ;
                     Envelope(x1,y1,x2,y2);
                     Envelope(x2,y2,x3,y3);
                     xtaz = (dx1+dx2+dx4)/3;
                     ytaz = (dy1+dy2+dy4)/3;
                     ztaz = (z1+z2+z4)/3;
                     v    = ColorCalculation(dx1,dy1,z1,dx2,dy2,z2,dx4,dy4,z4);
                     if (fShading==kShaded) {
                        if (fShadow==kShadowsNotPainted) {
                           if (sr1<0||sr1>w1||tr1<0||tr1>w2) Transform(sr1,tr1,-1);
                           else                              Transform(sr1,tr1,0);
                           dxr1 = fDxspline;
                           dyr1 = fDyspline;
                           zr1  = fZ;
                           if (sr8<0||sr8>w1||tr8<0||tr8>w2) Transform(sr8,tr8,-1);
                           else                              Transform(sr8,tr8,0);
                           dxr2 = fDxspline;
                           dyr2 = fDyspline;
                           zr2  = fZ;
                           v    = v+ColorCalculation(dxr1,dyr1,zr1,dx2,dy2,z2,dx1,dy1,z1);
                           v    = v+ColorCalculation(dxr1,dyr1,zr1,dx1,dy1,z1,dxr2,dyr2,zr2);
                           v    = v+ColorCalculation(dxr2,dyr2,zr2,dx1,dy1,z1,dx4,dy4,z4);
                           v1   = v/4;
                           if (sr3<0||sr3>w1||tr3<0||tr3>w2) Transform(sr3,tr3,-1);
                           else                              Transform(sr3,tr3,0);
                           dxr1 = fDxspline;
                           dyr1 = fDyspline;
                           zr1  = fZ;
                           if (sr2<0||sr2>w1||tr2<0||tr2>w2) Transform(sr2,tr2,-1);
                           else                              Transform(sr2,tr2,0);
                           dxr2 = fDxspline;
                           dyr2 = fDyspline;
                           zr2  = fZ;
                           v    = ColorCalculation(dx1,dy1,z1,dx2,dy2,z2,dx3,dy3,z3);
                           v    = v+ColorCalculation(dx2,dy2,z2,dxr1,dyr1,zr1,dx3,dy3,z3);
                           v    = v+ColorCalculation(dx2,dy2,z2,dxr2,dyr2,zr2,dxr1,dyr1,zr1);
                           v    = v+ColorCalculation(dxr2,dyr2,zr2,dx2,dy2,z2,dx1,dy1,z1);
                           v2   = v/4;
                           if (sr5<0||sr5>w1||tr5<0||tr5>w2) Transform(sr5,tr5,-1);
                           else                              Transform(sr5,tr5,0);
                           dxr1 = fDxspline;
                           dyr1 = fDyspline;
                           zr1  = fZ;
                           if (sr4<0||sr4>w1||tr4<0||tr4>w2) Transform(sr4,tr4,-1);
                           else                              Transform(sr4,tr4,0);
                           dxr2 = fDxspline;
                           dyr2 = fDyspline;
                           zr2  = fZ;
                           v    = ColorCalculation(dx2,dy2,z2,dx3,dy3,z3,dx4,dy4,z4);
                           v    = v+ColorCalculation(dx4,dy4,z4,dx3,dy3,z3,dxr1,dyr1,zr1);
                           v    = v+ColorCalculation(dx3,dy3,z3,dxr2,dyr2,zr2,dxr1,dyr1,zr1);
                           v    = v+ColorCalculation(dx2,dy2,z2,dxr2,dyr2,zr2,dx3,dy3,z3);
                           v3   = v/4;
                           if (sr7<0||sr7>w1||tr7<0||tr7>w2) Transform(sr7,tr7,-1);
                           else                              Transform(sr7,tr7,0);
                           dxr1 = fDxspline;
                           dyr1 = fDyspline;
                           zr1  = fZ;
                           if (sr6<0||sr6>w1||tr6<0||tr6>w2) Transform(sr6,tr6,-1);
                           else                              Transform(sr6,tr6,0);
                           dxr2 = fDxspline;
                           dyr2 = fDyspline;
                           zr2  = fZ;
                           v    = ColorCalculation(dx1,dy1,z1,dx3,dy3,z3,dx4,dy4,z4);
                           v    = v+ColorCalculation(dx4,dy4,z4,dx3,dy3,z3,dxr2,dyr2,zr2);
                           v    = v+ColorCalculation(dx4,dy4,z4,dxr2,dyr2,zr2,dxr1,dyr1,zr1);
                           v    = v+ColorCalculation(dx1,dy1,z1,dx4,dy4,z4,dxr1,dyr1,zr1);
                           v4   = v/4;
                        } else {
                           spriz = ShadowColorCalculation(xtaz,ytaz,ztaz,shad_noise);
                           v     = v+spriz;
                           v     = v/2;
                           if (sr1<0||sr1>w1||tr1<0||tr1>w2) Transform(sr1,tr1,-1);
                           else                              Transform(sr1,tr1,0);
                           dxr1  = fDxspline;
                           dyr1  = fDyspline;
                           zr1   = fZ;
                           if (sr8<0||sr8>w1||tr8<0||tr8>w2) Transform(sr8,tr8,-1);
                           else                              Transform(sr8,tr8,0);
                           dxr2  = fDxspline;
                           dyr2  = fDyspline;
                           zr2   = fZ;
                           da    = (dxr1+dx2+dx1)/3;
                           db    = (dyr1+dy2+dy1)/3;
                           dc    = (zr1+z2+z1)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dxr1,dyr1,zr1,dx2,dy2,z2,dx1,dy1,z1)+spriz)/2;
                           da    = (dxr1+dxr2+dx1)/3;
                           db    = (dyr1+dyr2+dy1)/3;
                           dc    = (zr1+zr2+z1)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dxr1,dyr1,zr1,dx1,dy1,z1,dxr2,dyr2,zr2)+spriz)/2;
                           da    = (dxr2+dx1+dx4)/3;
                           db    = (dyr2+dy1+dy4)/3;
                           dc    = (zr2+z1+z4)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dxr2,dyr2,zr2,dx1,dy1,z1,dx4,dy4,z4)+spriz)/2;
                           v1    = v/4;
                           if (sr3<0||sr3>w1||tr3<0||tr3>w2) Transform(sr3,tr3,-1);
                           else                              Transform(sr3,tr3,0);
                           dxr1  = fDxspline;
                           dyr1  = fDyspline;
                           zr1   = fZ;
                           if (sr2<0||sr2>w1||tr2<0||tr2>w2) Transform(sr2,tr2,-1);
                           else                              Transform(sr2,tr2,0);
                           dxr2  = fDxspline;
                           dyr2  = fDyspline;
                           zr2   = fZ;
                           da    = (dx1+dx2+dx3)/3;
                           db    = (dy1+dy2+dy3)/3;
                           dc    = (z1+z2+z3)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = (ColorCalculation(dx1,dy1,z1,dx2,dy2,z2,dx3,dy3,z3)+spriz)/2;
                           da    = (dx2+dxr1+dx3)/3;
                           db    = (dy2+dyr1+dy3)/3;
                           dc    = (z2+zr1+z3)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dx2,dy2,z2,dxr1,dyr1,zr1,dx3,dy3,z3)+spriz)/2;
                           da    = (dx2+dxr2+dxr1)/3;
                           db    = (dy2+dyr2+dyr1)/3;
                           dc    = (z2+zr2+zr1)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dx2,dy2,z2,dxr2,dyr2,zr2,dxr1,dyr1,zr1)+spriz)/2;
                           da    = (dxr2+dx2+dx1)/3;
                           db    = (dyr2+dy2+dy1)/3;
                           dc    = (zr2+z2+z1)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dxr2,dyr2,zr2,dx2,dy2,z2,dx1,dy1,z1)+spriz)/2;
                           v2    = v/4;
                           if (sr5<0||sr5>w1||tr5<0||tr5>w2) Transform(sr5,tr5,-1);
                           else                              Transform(sr5,tr5,0);
                           dxr1  = fDxspline;
                           dyr1  = fDyspline;
                           zr1   = fZ;
                           if (sr4<0||sr4>w1||tr4<0||tr4>w2) Transform(sr4,tr4,-1);
                           else                              Transform(sr4,tr4,0);
                           dxr2  = fDxspline;
                           dyr2  = fDyspline;
                           zr2   = fZ;
                           da    = (dx2+dx3+dx4)/3;
                           db    = (dy2+dy3+dy4)/3;
                           dc    = (z2+z3+z4)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = (ColorCalculation(dx2,dy2,z2,dx3,dy3,z3,dx4,dy4,z4)+spriz)/2;
                           da    = (dx4+dx3+dxr1)/3;
                           db    = (dy4+dy3+dyr1)/3;
                           dc    = (z4+z3+zr1)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dx4,dy4,z4,dx3,dy3,z3,dxr1,dyr1,zr1)+spriz)/2;
                           da    = (dx3+dxr2+dxr1)/3;
                           db    = (dy3+dyr2+dyr1)/3;
                           dc    = (z3+zr2+zr1)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dx3,dy3,z3,dxr2,dyr2,zr2,dxr1,dyr1,zr1)+spriz)/2;
                           da    = (dx2+dxr2+dx3)/3;
                           db    = (dy2+dyr2+dy3)/3;
                           dc    = (z2+zr2+z3)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dx2,dy2,z2,dxr2,dyr2,zr2,dx3,dy3,z3)+spriz)/2;
                           v3    = v/4;
                           if (sr7<0||sr7>w1||tr7<0||tr7>w2) Transform(sr7,tr7,-1);
                           else                              Transform(sr7,tr7,0);
                           dxr1  = fDxspline;
                           dyr1  = fDyspline;
                           zr1   = fZ;
                           if (sr6<0||sr6>w1||tr6<0||tr6>w2) Transform(sr6,tr6,-1);
                           else                              Transform(sr6,tr6,0);
                           dxr2  = fDxspline;
                           dyr2  = fDyspline;
                           zr2   = fZ;
                           da    = (dx1+dx3+dx4)/3;
                           db    = (dy1+dy3+dy4)/3;
                           dc    = (z1+z3+z4)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = (ColorCalculation(dx1,dy1,z1,dx3,dy3,z3,dx4,dy4,z4)+spriz)/2;
                           da    = (dx4+dx3+dxr2)/3;
                           db    = (dy4+dy3+dyr2)/3;
                           dc    = (z4+z3+zr2)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dx4,dy4,z4,dx3,dy3,z3,dxr2,dyr2,zr2)+spriz)/2;
                           da    = (dx4+dxr2+dxr1)/3;
                           db    = (dy4+dyr2+dyr1)/3;
                           dc    = (z4+zr2+zr1)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dx4,dy4,z4,dxr2,dyr2,zr2,dxr1,dyr1,zr1)+spriz)/2;
                           da    = (dx1+dx4+dxr1)/3;
                           db    = (dy1+dy4+dyr1)/3;
                           dc    = (z1+z4+zr1)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dx1,dy1,z1,dx4,dy4,z4,dxr1,dyr1,zr1)+spriz)/2;
                           v4    = v/4;
                        }
                     }
                     spriz = 0;
                     if (fShadow==kShadowsNotPainted) {
                        if (fShading==kNotShaded) {
                           v  = v*fLevels+0.5;
                           iv = fLevels-(Int_t)v;
                        } else {
                           v1  = v1*fLevels;
                           iv1 = fLevels-(Int_t)v1;
                           v2  = v2*fLevels;
                           iv2 = fLevels-(Int_t)v2;
                           v4  = v4*fLevels;
                           iv4 = fLevels-(Int_t)v4;
                        }
                     } else {
                     spriz = ShadowColorCalculation(xtaz,ytaz,ztaz,shad_noise);
                        if (fShading==kNotShaded) {
                           v  = v*fLevels/2.0;
                           iv = fLevels-(Int_t)(v+0.5);
                        } else {
                           v1  = v1*fLevels;
                           iv1 = fLevels-(Int_t)v1;
                           v2  = v2*fLevels;
                           iv2 = fLevels-(Int_t)v2;
                           v4  = v4*fLevels;
                           iv4 = fLevels-(Int_t)v4;
                        }
                     }
                     if (fShading==kNotShaded) {
                        ColorModel(iv,ui1,ui2,ui3);
                        line->SetLineColor(fNewColorIndex);
                     } else {
                        dx1 = x1;
                        dy1 = y1;
                        dx2 = x2;
                        dy2 = y2;
                        dx3 = x4;
                        dy3 = y4;
                        z1  = iv1;
                        z2  = iv2;
                        z3  = iv4;
                        da  = (dy2-dy1)*(z3-z1)-(dy3-dy1)*(z2-z1);
                        db  = (z2-z1)*(dx3-dx1)-(z3-z1)*(dx2-dx1);
                        dc  = (dx2-dx1)*(dy3-dy1)-(dx3-dx1)*(dy2-dy1);
                        dd  = -da*dx1-db*dy1-dc*z1;
                     }
                     sx1 = x1;
                     sy1 = y1;
                     sx3 = x4;
                     sy3 = y4;
                     if (sx3<sx1) {
                        sx4 = sx1;
                        sy4 = sy1;
                        sx1 = sx3;
                        sy1 = sy3;
                        sx3 = sx4;
                        sy3 = sy4;
                     }
                     pom1 = sy3-sy1;
                     pom2 = sx3-sx1;
                     if (pom2!=0) sdx2 = pom1/pom2;
                     pom1  = sy1;
                     pom2  = sx1;
                     sdy2  = pom1-sdx2*pom2;
                     sx1p  = sx1;
                     sy1p  = sy1;
                     sx3p  = sx3;
                     sdx2p = sdx2;
                     sdy2p = sdy2;
                     dap   = da;
                     dbp   = db;
                     dcp   = dc;
                     ddp   = dd;
                     uip   = fNewColorIndex;
                     xtaz  = (dx3+dx2+dx4)/3;
                     ytaz  = (dy3+dy2+dy4)/3;
                     ztaz  = (z3+z2+z4)/3;
                     if (fShading==kNotShaded) v=ColorCalculation(dx2,dy2,z2,dx3,dy3,z3,dx4,dy4,z4);
                     spriz = 0;
                     if (fShadow==kShadowsNotPainted) {
                        if (fShading==kNotShaded) {
                           v  = v*fLevels;
                           iv = fLevels-(Int_t)v;
                        } else {
                           v3  = v3*fLevels;
                           iv3 = fLevels-(Int_t)v3;
                        }
                     } else {
                        spriz = ShadowColorCalculation(xtaz,ytaz,ztaz,shad_noise);
                        if (fShading==kNotShaded) {
                           v  = v*fLevels/2;
                           iv = fLevels-(Int_t)v;
                           iv = (Int_t)(iv-fLevels*spriz/2);
                        } else {
                           v3  = v3*fLevels;
                           iv3 = fLevels-(Int_t)v3;
                        }
                     }
                     if (fShading==kNotShaded) {
                        ColorModel(iv,ui1,ui2,ui3);
                        line->SetLineColor(fNewColorIndex);
                     } else {
                        dx1 = x2;
                        dy1 = y2;
                        dx2 = x3;
                        dy2 = y3;
                        dx3 = x4;
                        dy3 = y4;
                        z1  = iv2;
                        z2  = iv3;
                        z3  = iv4;
                        da  = (dy2-dy1)*(z3-z1)-(dy3-dy1)*(z2-z1);
                        db  = (z2-z1)*(dx3-dx1)-(z3-z1)*(dx2-dx1);
                        dc  = (dx2-dx1)*(dy3-dy1)-(dx3-dx1)*(dy2-dy1);
                        dd  = -da*dx1-db*dy1-dc*z1;
                     }
                     sx1 = x2;
                     sy1 = y2;
                     sx2 = x3;
                     sy2 = y3;
                     if (sx2<sx1) {
                        sx4 = sx1;
                        sy4 = sy1;
                        sx1 = sx2;
                        sy1 = sy2;
                        sx2 = sx4;
                        sy2 = sy4;
                     }
                     pom1 = sy2-sy1;
                     pom2 = sx2-sx1;
                     sdx1 = 0;
                     if (pom2!=0) sdx1 = pom1/pom2;
                     pom1 = sy1;
                     pom2 = sx1;
                     sdy1 = pom1-sdx1*pom2;
                     for (sx4=sx1,sx5=sx1,sy5=sy1;sx4<=sx2;sx4++) {
                        pom1 = sx4;
                        sdy4 = sdx1*pom1+sdy1;
                        sy4  = (Int_t)sdy4;
                        if (sy4<=fEnvelope[sx4]) {
                           fEnvelope[sx4] = sy4;
                           if (fShading==kNotShaded) {
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           } else {
                              dx1 = sx4;
                              dy1 = sy4;
                              if (dc!=0) v = (-dd-da*dx1-db*dy1)/dc;
                              else       v =(iv1+iv2+iv4)/3;
                              iv = (Int_t)v;
                              ColorModel(iv,ui1,ui2,ui3);
                              line->SetLineColor(fNewColorIndex);
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           }
                           sy5 = sy4;
                        } else {
                           sy4 = fEnvelope[sx4];
                           if (fShading==kNotShaded&&sy5<=fEnvelope[sx5]) {
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           } else if (sy5<=fEnvelope[sx5]) {
                              dx1 = sx4;
                              dy1 = sy4;
                              if (dc!=0) v = (-dd-da*dx1-db*dy1)/dc;
                              else       v =(iv1+iv2+iv4)/3;
                              iv = (Int_t)v;
                              ColorModel(iv,ui1,ui2,ui3);
                              line->SetLineColor(fNewColorIndex);
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           }
                           sy5 = fEnvelope[sx4];
                        }
                        sx5 = sx4;
                     }
                     for (sx4=sx1p,sx5=sx1p,sy5=sy1p;sx4<=sx3p;sx4++) {
                        pom1 = sx4;
                        sdy4 = sdx2p*pom1+sdy2p;
                        sy4  = (Int_t)sdy4;
                        if (sy4<=fEnvelope[sx4]) {
                           fEnvelope[sx4]=sy4;
                           if (fShading==kNotShaded) {
                              line->SetLineColor(uip);
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           } else {
                              dx1 = sx4;
                              dy1 = sy4;
                              if (dcp!=0) v = (-ddp-dap*dx1-dbp*dy1)/dcp;
                              else        v = (iv1+iv2+iv4)/3;
                              iv = (Int_t)v;
                              ColorModel(iv,ui1,ui2,ui3);
                              line->SetLineColor(fNewColorIndex);
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           }
                           sy5 = sy4;
                        } else {
                           sy4 = fEnvelope[sx4];
                           if (fShading==kNotShaded&&sy5<=fEnvelope[sx5]) {
                              line->SetLineColor(uip);
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           } else if (sy5<=fEnvelope[sx5]) {
                              dx1 = sx4;
                              dy1 = sy4;
                              if (dcp!=0) v = (-ddp-dap*dx1-dbp*dy1)/dcp;
                              else        v = (iv1+iv2+iv4)/3;
                              iv = (Int_t)v;
                              ColorModel(iv,ui1,ui2,ui3);
                              line->SetLineColor(fNewColorIndex);
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           }
                           sy5 = fEnvelope[sx4];
                        }
                        sx5 = sx4;
                     }
                  }
               }
               break;
            case kDisplayModeLinesY:
               if (fModeGroup==kModeGroupSimple) {
                  if (((flag!=0)&&(smer==0))||((flag==0)&&(smer!=0))) {
                     if (fBezier==kNoBezierInterpol) {
                        Envelope(x1,y1,x2,y2);
                        if (fLine!=0) {
                           if (fLine==1) {
                              fXe = x2;
                              fYe = y2;
                           }
                           line->PaintLine(gPad->PixeltoX(fXs),gPad->PixeltoY(fYs)+1,gPad->PixeltoX(fXe),gPad->PixeltoY(fYe)+1);
                        }
                     } else {
                        s1 = (Int_t)TMath::Max(q1-1,0);
                        t1 = q2;
                        s2 = (Int_t)TMath::Min(q1+2,w1);
                        t2 = q2;
                        if (turni==1) {
                           i1 = s1;
                           i2 = s2;
                        } else {
                           i1 = w1-s1;
                           i2 = w1-s2;
                        }
                        if (turnj==1) {
                           j1 = t1;
                           j2 = t2;
                        } else {
                           j1 = w2-t1;
                           j2 = w2-t2;
                        }
                        Transform(i1,j1,0);
                        x3 = fXt;
                        y3 = fYt;
                        Transform(i2,j2,0);
                        x4 = fXt;
                        y4 = fYt;
                        bezx1 = x1+(x2-x1)/3;
                        bezx2 = x1+2*(x2-x1)/3;
                        bezy1 = y1+(y2-y3)/6;
                        bezy2 = y2-(y4-y1)/6;
                        if (x1<=x2) {
                           if (bezx1<=x1) {
                              bezx1 = x1;
                              bezy1 = y1;
                           }
                           if (bezx1>=x2) {
                              bezx1 = x2;
                              bezy1 = y2;
                           }
                           if (bezx2<=x1) {
                              bezx2 = x1;
                              bezy2 = y1;
                           }
                           if (bezx2>=x2) {
                              bezx2 = x2;
                              bezy2 = y2;
                           }
                           fBzX[0] = x1;
                           fBzY[0] = y1;
                           fBzX[1] = (Int_t)bezx1;
                           fBzY[1] = (Int_t)bezy1;
                           fBzX[2] = (Int_t)bezx2;
                           fBzY[2] = (Int_t)bezy2;
                           fBzX[3] = x2;
                           fBzY[3] = y2;
                           for (bezf=0;bezf<1.01;bezf+=0.1) {
                           BezierSmoothing(bezf);
                              if (bezf==0) {
                                 ibezx1 = (Int_t)(fGbezx+0.5);
                                 ibezy1 = (Int_t)(fGbezy+0.5);
                              } else {
                                 ibezx2 = ibezx1;
                                 ibezy2 = ibezy1;
                                 ibezx1 = (Int_t)(fGbezx+0.5);
                                 ibezy1 = (Int_t)(fGbezy+0.5);
                                 Envelope(ibezx2,ibezy2,ibezx1,ibezy1);
                                 if (fLine!=0) {
                                    if (fLine==1) {
                                       fXe = ibezx1;
                                       fYe = ibezy1;
                                    }
                                    line->PaintLine(gPad->PixeltoX(fXs),gPad->PixeltoY(fYs)+1,gPad->PixeltoX(fXe),gPad->PixeltoY(fYe)+1);
                                 }
                              }
                           }
                        } else if (x1>x2) {
                           if (bezx1>=x1) {
                              bezx1 = x1;
                              bezy1 = y1;
                           }
                           if (bezx1<=x2) {
                              bezx1 = x2;
                              bezy1 = y2;
                           }
                           if (bezx2>=x1) {
                              bezx2 = x1;
                              bezy2 = y1;
                           }
                           if (bezx2<=x2) {
                              bezx2 = x2;
                              bezy2 = y2;
                           }
                           fBzX[0] = x1;
                           fBzY[0] = y1;
                           fBzX[1] = (Int_t)bezx1;
                           fBzY[1] = (Int_t)bezy1;
                           fBzX[2] = (Int_t)bezx2;
                           fBzY[2] = (Int_t)bezy2;
                           fBzX[3] = x2;
                           fBzY[3] = y2;
                           for (bezf=0;bezf<1.01;bezf+=0.1) {
                              BezierSmoothing(bezf);
                              if (bezf==0) {
                                 ibezx1 = (Int_t)(fGbezx+0.5);
                                 ibezy1 = (Int_t)(fGbezy+0.5);
                              } else {
                              ibezx2 = ibezx1;
                              ibezy2 = ibezy1;
                              ibezx1 = (Int_t)(fGbezx+0.5);
                              ibezy1 = (Int_t)(fGbezy+0.5);
                              Envelope(ibezx1,ibezy1,ibezx2,ibezy2);
                              if (fLine!=0) {
                                 if (fLine==1) {
                                    fXe = ibezx2;
                                    fYe = ibezy2;
                                 }
                                 line->PaintLine(gPad->PixeltoX(fXs),gPad->PixeltoY(fYs)+1,gPad->PixeltoX(fXe),gPad->PixeltoY(fYe)+1);
                                 }
                              }
                           }
                        }
                     }
                  }
               } else {
                  if ((q1!=q2||smer!=0)&&flag==1) {
                     s1 = q1+1;
                     t1 = q2;
                     s2 = q1;
                     t2 = q2;
                     s3 = q1;
                     t3 = q2+1;
                     s4 = q1+1;
                     t4 = q2+1;
                     if (fShading==kShaded) {
                        sr1 = s1;
                        tr1 = (Int_t)TMath::Max(t1-1,0);
                        sr2 = s2;
                        tr2 = (Int_t)TMath::Max(t2-1,0);
                        sr3 = (Int_t)TMath::Max(s2-1,0);
                        tr3 = t2;
                        sr4 = (Int_t)TMath::Max(s3-1,0);
                        tr4 = t3;
                        sr5 = s3;
                        tr5 = t3+1;
                        sr6 = s4;
                        tr6 = t4+1;
                        sr7 = s4+1;
                        tr7 = t4;
                        sr8 = s1+1;
                        tr8 = t1;
                     }
                        if (turni==1) {
                        i1 = s1;
                        i2 = s2;
                        i3 = s3;
                        i4 = s4;
                     } else {
                        i1 = (Int_t)TMath::Max(w1-s1,0);
                        i2 = (Int_t)TMath::Max(w1-s2,0);
                        i3 = (Int_t)TMath::Max(w1-s3,0);
                        i4 = (Int_t)TMath::Max(w1-s4,0);
                        if (fShading==kShaded) {
                           sr1 = (Int_t)TMath::Max(w1-sr1,0);
                           sr2 = (Int_t)TMath::Max(w1-sr2,0);
                           sr3 = (Int_t)TMath::Max(w1-sr3,0);
                           sr4 = (Int_t)TMath::Max(w1-sr4,0);
                           sr5 = (Int_t)TMath::Max(w1-sr5,0);
                           sr6 = (Int_t)TMath::Max(w1-sr6,0);
                           sr7 = (Int_t)TMath::Max(w1-sr7,0);
                           sr8 = (Int_t)TMath::Max(w1-sr8,0);
                        }
                     }
                     if (turnj==1) {
                        j1 = t1;
                        j2 = t2;
                        j3 = t3;
                        j4 = t4;
                     } else {
                        j1 = (Int_t)TMath::Max(w2-t1,0);
                        j2 = (Int_t)TMath::Max(w2-t2,0);
                        j3 = (Int_t)TMath::Max(w2-t3,0);
                        j4 = (Int_t)TMath::Max(w2-t4,0);
                        if (fShading==kShaded) {
                           tr1 = (Int_t)TMath::Max(w2-tr1,0);
                           tr2 = (Int_t)TMath::Max(w2-tr2,0);
                           tr3 = (Int_t)TMath::Max(w2-tr3,0);
                           tr4 = (Int_t)TMath::Max(w2-tr4,0);
                           tr5 = (Int_t)TMath::Max(w2-tr5,0);
                           tr6 = (Int_t)TMath::Max(w2-tr6,0);
                           tr7 = (Int_t)TMath::Max(w2-tr7,0);
                           tr8 = (Int_t)TMath::Max(w2-tr8,0);
                        }
                     }
                     Transform(i1,j1,0);
                     x1  = fXt;
                     y1  = fYt;
                     dx1 = fDxspline;
                     dy1 = fDyspline;
                     z1  = fZ;
                     Transform(i2,j2,0);
                     x2  = fXt;
                     y2  = fYt;
                     dx2 = fDxspline;
                     dy2 = fDyspline;
                     z2  = fZ;
                     Transform(i3,j3,0);
                     x3  = fXt;
                     y3  = fYt;
                     dx3 = fDxspline;
                     dy3 = fDyspline;
                     z3  = fZ;
                     Transform(i4,j4,0);
                     x4  = fXt;
                     y4  = fYt;
                     dx4 = fDxspline;
                     dy4 = fDyspline;
                     z4  = fZ;
                     Envelope(x1,y1,x2,y2);
                     Envelope(x2,y2,x3,y3);
                     xtaz = (dx1+dx2+dx4)/3;
                     ytaz = (dy1+dy2+dy4)/3;
                     ztaz = (z1+z2+z4)/3;
                     v    = ColorCalculation(dx1,dy1,z1,dx2,dy2,z2,dx4,dy4,z4);
                     if (fShading==kShaded) {
                        if (fShadow==kShadowsNotPainted) {
                           if (sr1<0||sr1>w1||tr1<0||tr1>w2) Transform(sr1,tr1,-1);
                           else                              Transform(sr1,tr1,0);
                           dxr1 = fDxspline;
                           dyr1 = fDyspline;
                           zr1  = fZ;
                           if (sr8<0||sr8>w1||tr8<0||tr8>w2) Transform(sr8,tr8,-1);
                           else                              Transform(sr8,tr8,0);
                           dxr2 = fDxspline;
                           dyr2 = fDyspline;
                           zr2  = fZ;
                           v    = v+ColorCalculation(dxr1,dyr1,zr1,dx2,dy2,z2,dx1,dy1,z1);
                           v    = v+ColorCalculation(dxr1,dyr1,zr1,dx1,dy1,z1,dxr2,dyr2,zr2);
                           v    = v+ColorCalculation(dxr2,dyr2,zr2,dx1,dy1,z1,dx4,dy4,z4);
                           v1   = v/4;
                           if (sr3<0||sr3>w1||tr3<0||tr3>w2) Transform(sr3,tr3,-1);
                           else                              Transform(sr3,tr3,0);
                           dxr1 = fDxspline;
                           dyr1 = fDyspline;
                           zr1  = fZ;
                           if (sr2<0||sr2>w1||tr2<0||tr2>w2) Transform(sr2,tr2,-1);
                           else                              Transform(sr2,tr2,0);
                           dxr2 = fDxspline;
                           dyr2 = fDyspline;
                           zr2  = fZ;
                           v    = ColorCalculation(dx1,dy1,z1,dx2,dy2,z2,dx3,dy3,z3);
                           v    = v+ColorCalculation(dx2,dy2,z2,dxr1,dyr1,zr1,dx3,dy3,z3);
                           v    = v+ColorCalculation(dx2,dy2,z2,dxr2,dyr2,zr2,dxr1,dyr1,zr1);
                           v    = v+ColorCalculation(dxr2,dyr2,zr2,dx2,dy2,z2,dx1,dy1,z1);
                           v2   = v/4;
                           if (sr5<0||sr5>w1||tr5<0||tr5>w2) Transform(sr5,tr5,-1);
                           else                              Transform(sr5,tr5,0);
                           dxr1 = fDxspline;
                           dyr1 = fDyspline;
                           zr1  = fZ;
                           if (sr4<0||sr4>w1||tr4<0||tr4>w2) Transform(sr4,tr4,-1);
                           else                              Transform(sr4,tr4,0);
                           dxr2 = fDxspline;
                           dyr2 = fDyspline;
                           zr2  = fZ;
                           v    = ColorCalculation(dx2,dy2,z2,dx3,dy3,z3,dx4,dy4,z4);
                           v    = v+ColorCalculation(dx4,dy4,z4,dx3,dy3,z3,dxr1,dyr1,zr1);
                           v    = v+ColorCalculation(dx3,dy3,z3,dxr2,dyr2,zr2,dxr1,dyr1,zr1);
                           v    = v+ColorCalculation(dx2,dy2,z2,dxr2,dyr2,zr2,dx3,dy3,z3);
                           v3   = v/4;
                           if (sr7<0||sr7>w1||tr7<0||tr7>w2) Transform(sr7,tr7,-1);
                           else                              Transform(sr7,tr7,0);
                           dxr1 = fDxspline;
                           dyr1 = fDyspline;
                           zr1  = fZ;
                           if (sr6<0||sr6>w1||tr6<0||tr6>w2) Transform(sr6,tr6,-1);
                           else                              Transform(sr6,tr6,0);
                           dxr2 = fDxspline;
                           dyr2 = fDyspline;
                           zr2  = fZ;
                           v    = ColorCalculation(dx1,dy1,z1,dx3,dy3,z3,dx4,dy4,z4);
                           v    = v+ColorCalculation(dx4,dy4,z4,dx3,dy3,z3,dxr2,dyr2,zr2);
                           v    = v+ColorCalculation(dx4,dy4,z4,dxr2,dyr2,zr2,dxr1,dyr1,zr1);
                           v    = v+ColorCalculation(dx1,dy1,z1,dx4,dy4,z4,dxr1,dyr1,zr1);
                           v4   = v/4;
                        } else {
                           spriz = ShadowColorCalculation(xtaz,ytaz,ztaz,shad_noise);
                           v     = v+spriz;
                           v     = v/2;
                           if (sr1<0||sr1>w1||tr1<0||tr1>w2) Transform(sr1,tr1,-1);
                           else                              Transform(sr1,tr1,0);
                           dxr1 = fDxspline;
                           dyr1 = fDyspline;
                           zr1  = fZ;
                           if (sr8<0||sr8>w1||tr8<0||tr8>w2) Transform(sr8,tr8,-1);
                           else                              Transform(sr8,tr8,0);
                           dxr2  = fDxspline;
                           dyr2  = fDyspline;
                           zr2   = fZ;
                           da    = (dxr1+dx2+dx1)/3;
                           db    = (dyr1+dy2+dy1)/3;
                           dc    = (zr1+z2+z1)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dxr1,dyr1,zr1,dx2,dy2,z2,dx1,dy1,z1)+spriz)/2;
                           da    = (dxr1+dxr2+dx1)/3;
                           db    = (dyr1+dyr2+dy1)/3;
                           dc    = (zr1+zr2+z1)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dxr1,dyr1,zr1,dx1,dy1,z1,dxr2,dyr2,zr2)+spriz)/2;
                           da    = (dxr2+dx1+dx4)/3;
                           db    = (dyr2+dy1+dy4)/3;
                           dc    = (zr2+z1+z4)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dxr2,dyr2,zr2,dx1,dy1,z1,dx4,dy4,z4)+spriz)/2;
                           v1    = v/4;
                           if (sr3<0||sr3>w1||tr3<0||tr3>w2) Transform(sr3,tr3,-1);
                           else                              Transform(sr3,tr3,0);
                           dxr1  = fDxspline;
                           dyr1  = fDyspline;
                           zr1   = fZ;
                           if (sr2<0||sr2>w1||tr2<0||tr2>w2) Transform(sr2,tr2,-1);
                           else                              Transform(sr2,tr2,0);
                           dxr2  = fDxspline;
                           dyr2  = fDyspline;
                           zr2   = fZ;
                           da    = (dx1+dx2+dx3)/3;
                           db    = (dy1+dy2+dy3)/3;
                           dc    = (z1+z2+z3)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = (ColorCalculation(dx1,dy1,z1,dx2,dy2,z2,dx3,dy3,z3)+spriz)/2;
                           da    = (dx2+dxr1+dx3)/3;
                           db    = (dy2+dyr1+dy3)/3;
                           dc    = (z2+zr1+z3)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dx2,dy2,z2,dxr1,dyr1,zr1,dx3,dy3,z3)+spriz)/2;
                           da    = (dx2+dxr2+dxr1)/3;
                           db    = (dy2+dyr2+dyr1)/3;
                           dc    = (z2+zr2+zr1)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dx2,dy2,z2,dxr2,dyr2,zr2,dxr1,dyr1,zr1)+spriz)/2;
                           da    = (dxr2+dx2+dx1)/3;
                           db    = (dyr2+dy2+dy1)/3;
                           dc    = (zr2+z2+z1)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dxr2,dyr2,zr2,dx2,dy2,z2,dx1,dy1,z1)+spriz)/2;
                           v2    = v/4;
                           if (sr5<0||sr5>w1||tr5<0||tr5>w2) Transform(sr5,tr5,-1);
                           else                              Transform(sr5,tr5,0);
                           dxr1  = fDxspline;
                           dyr1  = fDyspline;
                           zr1   = fZ;
                           if (sr4<0||sr4>w1||tr4<0||tr4>w2) Transform(sr4,tr4,-1);
                           else                              Transform(sr4,tr4,0);
                           dxr2  = fDxspline;
                           dyr2  = fDyspline;
                           zr2   = fZ;
                           da    = (dx2+dx3+dx4)/3;
                           db    = (dy2+dy3+dy4)/3;
                           dc    = (z2+z3+z4)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = (ColorCalculation(dx2,dy2,z2,dx3,dy3,z3,dx4,dy4,z4)+spriz)/2;
                           da    = (dx4+dx3+dxr1)/3;
                           db    = (dy4+dy3+dyr1)/3;
                           dc    = (z4+z3+zr1)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dx4,dy4,z4,dx3,dy3,z3,dxr1,dyr1,zr1)+spriz)/2;
                           da    = (dx3+dxr2+dxr1)/3;
                           db    = (dy3+dyr2+dyr1)/3;
                           dc    = (z3+zr2+zr1)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dx3,dy3,z3,dxr2,dyr2,zr2,dxr1,dyr1,zr1)+spriz)/2;
                           da    = (dx2+dxr2+dx3)/3;
                           db    = (dy2+dyr2+dy3)/3;
                           dc    = (z2+zr2+z3)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dx2,dy2,z2,dxr2,dyr2,zr2,dx3,dy3,z3)+spriz)/2;
                           v3    = v/4;
                           if (sr7<0||sr7>w1||tr7<0||tr7>w2) Transform(sr7,tr7,-1);
                           else                              Transform(sr7,tr7,0);
                           dxr1  = fDxspline;
                           dyr1  = fDyspline;
                           zr1   = fZ;
                           if (sr6<0||sr6>w1||tr6<0||tr6>w2) Transform(sr6,tr6,-1);
                           else                              Transform(sr6,tr6,0);
                           dxr2  = fDxspline;
                           dyr2  = fDyspline;
                           zr2   = fZ;
                           da    = (dx1+dx3+dx4)/3;
                           db    = (dy1+dy3+dy4)/3;
                           dc    = (z1+z3+z4)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = (ColorCalculation(dx1,dy1,z1,dx3,dy3,z3,dx4,dy4,z4)+spriz)/2;
                           da    = (dx4+dx3+dxr2)/3;
                           db    = (dy4+dy3+dyr2)/3;
                           dc    = (z4+z3+zr2)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dx4,dy4,z4,dx3,dy3,z3,dxr2,dyr2,zr2)+spriz)/2;
                           da    = (dx4+dxr2+dxr1)/3;
                           db    = (dy4+dyr2+dyr1)/3;
                           dc    = (z4+zr2+zr1)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dx4,dy4,z4,dxr2,dyr2,zr2,dxr1,dyr1,zr1)+spriz)/2;
                           da    = (dx1+dx4+dxr1)/3;
                           db    = (dy1+dy4+dyr1)/3;
                           dc    = (z1+z4+zr1)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dx1,dy1,z1,dx4,dy4,z4,dxr1,dyr1,zr1)+spriz)/2;
                           v4    = v/4;
                        }
                     }
                     spriz = 0;
                     if (fShadow==kShadowsNotPainted) {
                        if (fShading==kNotShaded) {
                           v  = v*fLevels+0.5;
                           iv = fLevels-(Int_t)v;
                        } else {
                           v1  = v1*fLevels;
                           iv1 = fLevels-(Int_t)v1;
                           v2  = v2*fLevels;
                           iv2 = fLevels-(Int_t)v2;
                           v4  = v4*fLevels;
                           iv4 = fLevels-(Int_t)v4;
                        }
                     } else {
                        spriz = ShadowColorCalculation(xtaz,ytaz,ztaz,shad_noise);
                        if (fShading==kNotShaded) {
                           v  = v*fLevels/2.0;
                           iv = fLevels-(Int_t)(v+0.5);
                        } else {
                           v1  = v1*fLevels;
                           iv1 = fLevels-(Int_t)v1;
                           v2  = v2*fLevels;
                           iv2 = fLevels-(Int_t)v2;
                           v4  = v4*fLevels;
                           iv4 = fLevels-(Int_t)v4;
                        }
                     }
                     if (fShading==kNotShaded) {
                        ColorModel(iv,ui1,ui2,ui3);
                        line->SetLineColor(fNewColorIndex);
                     } else {
                        dx1 = x1;
                        dy1 = y1;
                        dx2 = x2;
                        dy2 = y2;
                        dx3 = x4;
                        dy3 = y4;
                        z1  = iv1;
                        z2  = iv2;
                        z3  = iv4;
                        da  = (dy2-dy1)*(z3-z1)-(dy3-dy1)*(z2-z1);
                        db  = (z2-z1)*(dx3-dx1)-(z3-z1)*(dx2-dx1);
                        dc  = (dx2-dx1)*(dy3-dy1)-(dx3-dx1)*(dy2-dy1);
                        dd  = -da*dx1-db*dy1-dc*z1;
                     }
                     sx1 = x1;
                     sy1 = y1;
                     sx2 = x2;
                     sy2 = y2;
                     if (sx2<sx1) {
                        sx4 = sx1;
                        sy4 = sy1;
                        sx1 = sx2;
                        sy1 = sy2;
                        sx2 = sx4;
                        sy2 = sy4;
                     }
                     sdx1 = 0;
                     pom1 = sy2-sy1;
                     pom2 = sx2-sx1;
                     if (pom2!=0) sdx1 = pom1/pom2;
                     pom1 = sy1;
                     pom2 = sx1;
                     sdy1 = pom1-sdx1*pom2;
                     for (sx4=sx1,sx5=sx1,sy5=sy1;sx4<=sx2;sx4++) {
                        pom1 = sx4;
                        sdy4 = sdx1*pom1+sdy1;
                        sy4  = (Int_t)sdy4;
                        if (sy4<=fEnvelope[sx4]) {
                           fEnvelope[sx4] = sy4;
                           if (fShading==kNotShaded) {
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           } else {
                              dx1 = sx4;
                              dy1 = sy4;
                              if (dc!=0) v = (-dd-da*dx1-db*dy1)/dc;
                              else       v =(iv1+iv2+iv4)/3;
                              iv = (Int_t)v;
                              ColorModel(iv,ui1,ui2,ui3);
                              line->SetLineColor(fNewColorIndex);
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           }
                           sy5 = sy4;
                        } else {
                           sy4 = fEnvelope[sx4];
                           if (fShading==kNotShaded&&sy5<=fEnvelope[sx5]) {
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           } else if (sy5<=fEnvelope[sx5]) {
                              dx1 = sx4;
                              dy1 = sy4;
                              if (dc!=0) v = (-dd-da*dx1-db*dy1)/dc;
                              else       v =(iv1+iv2+iv4)/3;
                              iv = (Int_t)v;
                              ColorModel(iv,ui1,ui2,ui3);
                              line->SetLineColor(fNewColorIndex);
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           }
                           sy5 = fEnvelope[sx4];
                        }
                        sx5 = sx4;
                     }
                     xtaz = (dx3+dx2+dx4)/3;
                     ytaz = (dy3+dy2+dy4)/3;
                     ztaz = (z3+z2+z4)/3;
                     if (fShading==kNotShaded) v=ColorCalculation(dx2,dy2,z2,dx3,dy3,z3,dx4,dy4,z4);
                     spriz = 0;
                     if (fShadow==kShadowsNotPainted) {
                        if (fShading==kNotShaded) {
                           v  = v*fLevels;
                           iv = fLevels-(Int_t)v;
                        } else {
                           v3  = v3*fLevels;
                           iv3 = fLevels-(Int_t)v3;
                        }
                     } else {
                        spriz = ShadowColorCalculation(xtaz,ytaz,ztaz,shad_noise);
                        if (fShading==kNotShaded) {
                           v  = v*fLevels/2;
                           iv = fLevels-(Int_t)v;
                           iv = (Int_t)(iv-fLevels*spriz/2);
                        } else {
                           v3  = v3*fLevels;
                           iv3 = fLevels-(Int_t)v3;
                        }
                     }
                     if (fShading==kNotShaded) {
                        ColorModel(iv,ui1,ui2,ui3);
                        line->SetLineColor(fNewColorIndex);
                     } else {
                        dx1 = x2;
                        dy1 = y2;
                        dx2 = x3;
                        dy2 = y3;
                        dx3 = x4;
                        dy3 = y4;
                        z1  = iv2;
                        z2  = iv3;
                        z3  = iv4;
                        da  = (dy2-dy1)*(z3-z1)-(dy3-dy1)*(z2-z1);
                        db  = (z2-z1)*(dx3-dx1)-(z3-z1)*(dx2-dx1);
                        dc  = (dx2-dx1)*(dy3-dy1)-(dx3-dx1)*(dy2-dy1);
                        dd  = -da*dx1-db*dy1-dc*z1;
                     }
                     sx2 = x3;
                     sy2 = y3;
                     sx3 = x4;
                     sy3 = y4;
                     if (sx3<sx2) {
                        sx4 = sx2;
                        sy4 = sy2;
                        sx2 = sx3;
                        sy2 = sy3;
                        sx3 = sx4;
                        sy3 = sy4;
                     }
                     sdx2 = 0;
                     pom1 = sy3-sy2;
                     pom2 = sx3-sx2;
                     if (pom2!=0) sdx2 = pom1/pom2;
                     pom1 = sy2;
                     pom2 = sx2;
                     sdy2 = pom1-sdx2*pom2;
                     for (sx4=sx2,sx5=sx2,sy5=sy2;sx4<=sx3;sx4++) {
                        pom1 = sx4;
                        sdy4 = sdx2*pom1+sdy2;
                        sy4  = (Int_t)sdy4;
                        if (sy4<=fEnvelope[sx4]) {
                           fEnvelope[sx4] = sy4;
                           if (fShading==kNotShaded) {
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           } else {
                              dx1 = sx4;
                              dy1 = sy4;
                              if (dc!=0) v = (-dd-da*dx1-db*dy1)/dc;
                              else       v =(iv1+iv2+iv4)/3;
                              iv = (Int_t)v;
                              ColorModel(iv,ui1,ui2,ui3);
                              line->SetLineColor(fNewColorIndex);
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           }
                           sy5 = sy4;
                        } else {
                           sy4 = fEnvelope[sx4];
                           if (fShading==kNotShaded&&sy5<=fEnvelope[sx5]) {
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           } else if (sy5<=fEnvelope[sx5]) {
                              dx1 = sx4;
                              dy1 = sy4;
                              if (dc!=0) v = (-dd-da*dx1-db*dy1)/dc;
                              else       v =(iv1+iv2+iv4)/3;
                              iv = (Int_t)v;
                              ColorModel(iv,ui1,ui2,ui3);
                              line->SetLineColor(fNewColorIndex);
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           }
                           sy5 = fEnvelope[sx4];
                        }
                        sx5 = sx4;
                     }
                  }
               }
               break;
            case kDisplayModeNeedles:
               Transform(i,j,-1);
               x2d = fXt;
               y2d = fYt;
               if (flag==1) {
                  x   = x1d;
                  y   = y1d;
                  x1d = x2d;
                  y1d = y2d;
                  x2d = x;
                  y2d = y;
               }
               line->PaintLine(gPad->PixeltoX(x1),gPad->PixeltoY(y1)+1,gPad->PixeltoX(x1d),gPad->PixeltoY(y1d)+1);
               line->PaintLine(gPad->PixeltoX(x2),gPad->PixeltoY(y2)+1,gPad->PixeltoX(x2d),gPad->PixeltoY(y2d)+1);
               break;
            case kDisplayModeSurface:
               box->SetFillStyle(1001);
               if ((q1!=q2||smer!=0)&&flag==1) {
                  s1 = q1+1;
                  t1 = q2;
                  s2 = q1;
                  t2 = q2;
                  s3 = q1;
                  t3 = q2+1;
                  s4 = q1+1;
                  t4 = q2+1;
                  if (fShading==kShaded) {
                     sr1 = s1;
                     tr1 = (Int_t)TMath::Max(t1-1,0);
                     sr2 = s2;
                     tr2 = (Int_t)TMath::Max(t2-1,0);
                     sr3 = (Int_t)TMath::Max(s2-1,0);
                     tr3 = t2;
                     sr4 = (Int_t)TMath::Max(s3-1,0);
                     tr4 = t3;
                     sr5 = s3;
                     tr5 = t3+1;
                     sr6 = s4;
                     tr6 = t4+1;
                     sr7 = s4+1;
                     tr7 = t4;
                     sr8 = s1+1;
                     tr8 = t1;
                  }
                  if (turni==1) {
                     i1 = s1;
                     i2 = s2;
                     i3 = s3;
                     i4 = s4;
                  } else {
                     i1 = (Int_t)TMath::Max(w1-s1,0);
                     i2 = (Int_t)TMath::Max(w1-s2,0);
                     i3 = (Int_t)TMath::Max(w1-s3,0);
                     i4 = (Int_t)TMath::Max(w1-s4,0);
                     if (fShading==kShaded) {
                     sr1 = (Int_t)TMath::Max(w1-sr1,0);
                     sr2 = (Int_t)TMath::Max(w1-sr2,0);
                     sr3 = (Int_t)TMath::Max(w1-sr3,0);
                     sr4 = (Int_t)TMath::Max(w1-sr4,0);
                     sr5 = (Int_t)TMath::Max(w1-sr5,0);
                     sr6 = (Int_t)TMath::Max(w1-sr6,0);
                     sr7 = (Int_t)TMath::Max(w1-sr7,0);
                     sr8 = (Int_t)TMath::Max(w1-sr8,0);
                     }
                  }
                  if (turnj==1) {
                     j1 = t1;
                     j2 = t2;
                     j3 = t3;
                     j4 = t4;
                  } else {
                     j1 = (Int_t)TMath::Max(w2-t1,0);
                     j2 = (Int_t)TMath::Max(w2-t2,0);
                     j3 = (Int_t)TMath::Max(w2-t3,0);
                     j4 = (Int_t)TMath::Max(w2-t4,0);
                     if (fShading==kShaded) {
                        tr1 = (Int_t)TMath::Max(w2-tr1,0);
                        tr2 = (Int_t)TMath::Max(w2-tr2,0);
                        tr3 = (Int_t)TMath::Max(w2-tr3,0);
                        tr4 = (Int_t)TMath::Max(w2-tr4,0);
                        tr5 = (Int_t)TMath::Max(w2-tr5,0);
                        tr6 = (Int_t)TMath::Max(w2-tr6,0);
                        tr7 = (Int_t)TMath::Max(w2-tr7,0);
                        tr8 = (Int_t)TMath::Max(w2-tr8,0);
                     }
                  }
                  Transform(i1,j1,0);
                  x1  = fXt;
                  y1  = fYt;
                  dx1 = fDxspline;
                  dy1 = fDyspline;
                  z1  = fZ;
                  Transform(i2,j2,0);
                  x2  = fXt;
                  y2  = fYt;
                  dx2 = fDxspline;
                  dy2 = fDyspline;
                  z2  = fZ;
                  Transform(i3,j3,0);
                  x3  = fXt;
                  y3  = fYt;
                  dx3 = fDxspline;
                  dy3 = fDyspline;
                  z3  = fZ;
                  Transform(i4,j4,0);
                  x4  = fXt;
                  y4  = fYt;
                  dx4 = fDxspline;
                  dy4 = fDyspline;
                  z4  = fZ;
                  Envelope(x1,y1,x2,y2);
                  Envelope(x2,y2,x3,y3);
                  xtaz = (dx1+dx2+dx4)/3;
                  ytaz = (dy1+dy2+dy4)/3;
                  ztaz = (z1+z2+z4)/3;
                  v    = ColorCalculation(dx1,dy1,z1,dx2,dy2,z2,dx4,dy4,z4);
                  if (fShading==kShaded) {
                     if (fShadow==kShadowsNotPainted) {
                        if (sr1<0||sr1>w1||tr1<0||tr1>w2) Transform(sr1,tr1,-1);
                        else                              Transform(sr1,tr1,0);
                        dxr1 = fDxspline;
                        dyr1 = fDyspline;
                        zr1  = fZ;
                        if (sr8<0||sr8>w1||tr8<0||tr8>w2) Transform(sr8,tr8,-1);
                        else                              Transform(sr8,tr8,0);
                        dxr2 = fDxspline;
                        dyr2 = fDyspline;
                        zr2  = fZ;
                        v    = v+ColorCalculation(dxr1,dyr1,zr1,dx2,dy2,z2,dx1,dy1,z1);
                        v    = v+ColorCalculation(dxr1,dyr1,zr1,dx1,dy1,z1,dxr2,dyr2,zr2);
                        v    = v+ColorCalculation(dxr2,dyr2,zr2,dx1,dy1,z1,dx4,dy4,z4);
                        v1   = v/4;
                        if (sr3<0||sr3>w1||tr3<0||tr3>w2) Transform(sr3,tr3,-1);
                        else                              Transform(sr3,tr3,0);
                        dxr1 = fDxspline;
                        dyr1 = fDyspline;
                        zr1  = fZ;
                        if (sr2<0||sr2>w1||tr2<0||tr2>w2) Transform(sr2,tr2,-1);
                        else                              Transform(sr2,tr2,0);
                        dxr2 = fDxspline;
                        dyr2 = fDyspline;
                        zr2  = fZ;
                        v    = ColorCalculation(dx1,dy1,z1,dx2,dy2,z2,dx3,dy3,z3);
                        v    = v+ColorCalculation(dx2,dy2,z2,dxr1,dyr1,zr1,dx3,dy3,z3);
                        v    = v+ColorCalculation(dx2,dy2,z2,dxr2,dyr2,zr2,dxr1,dyr1,zr1);
                        v    = v+ColorCalculation(dxr2,dyr2,zr2,dx2,dy2,z2,dx1,dy1,z1);
                        v2   = v/4;
                        if (sr5<0||sr5>w1||tr5<0||tr5>w2) Transform(sr5,tr5,-1);
                        else                              Transform(sr5,tr5,0);
                        dxr1 = fDxspline;
                        dyr1 = fDyspline;
                        zr1  = fZ;
                        if (sr4<0||sr4>w1||tr4<0||tr4>w2) Transform(sr4,tr4,-1);
                        else                              Transform(sr4,tr4,0);
                        dxr2 = fDxspline;
                        dyr2 = fDyspline;
                        zr2  = fZ;
                        v    = ColorCalculation(dx2,dy2,z2,dx3,dy3,z3,dx4,dy4,z4);
                        v    = v+ColorCalculation(dx4,dy4,z4,dx3,dy3,z3,dxr1,dyr1,zr1);
                        v    = v+ColorCalculation(dx3,dy3,z3,dxr2,dyr2,zr2,dxr1,dyr1,zr1);
                        v    = v+ColorCalculation(dx2,dy2,z2,dxr2,dyr2,zr2,dx3,dy3,z3);
                        v3   = v/4;
                        if (sr7<0||sr7>w1||tr7<0||tr7>w2) Transform(sr7,tr7,-1);
                        else                              Transform(sr7,tr7,0);
                        dxr1 = fDxspline;
                        dyr1 = fDyspline;
                        zr1  = fZ;
                        if (sr6<0||sr6>w1||tr6<0||tr6>w2) Transform(sr6,tr6,-1);
                        else                              Transform(sr6,tr6,0);
                        dxr2 = fDxspline;
                        dyr2 = fDyspline;
                        zr2  = fZ;
                        v    = ColorCalculation(dx1,dy1,z1,dx3,dy3,z3,dx4,dy4,z4);
                        v    = v+ColorCalculation(dx4,dy4,z4,dx3,dy3,z3,dxr2,dyr2,zr2);
                        v    = v+ColorCalculation(dx4,dy4,z4,dxr2,dyr2,zr2,dxr1,dyr1,zr1);
                        v    = v+ColorCalculation(dx1,dy1,z1,dx4,dy4,z4,dxr1,dyr1,zr1);
                        v4   = v/4;
                     } else {
                        spriz = ShadowColorCalculation(xtaz,ytaz,ztaz,shad_noise);
                        v     = v+spriz;
                        v     = v/2;
                        if (sr1<0||sr1>w1||tr1<0||tr1>w2) Transform(sr1,tr1,-1);
                        else                              Transform(sr1,tr1,0);
                        dxr1 = fDxspline;
                        dyr1 = fDyspline;
                        zr1  = fZ;
                        if (sr8<0||sr8>w1||tr8<0||tr8>w2) Transform(sr8,tr8,-1);
                        else                              Transform(sr8,tr8,0);
                        dxr2  = fDxspline;
                        dyr2  = fDyspline;
                        zr2   = fZ;
                        da    = (dxr1+dx2+dx1)/3;
                        db    = (dyr1+dy2+dy1)/3;
                        dc    = (zr1+z2+z1)/3;
                        spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                        v     = v+(ColorCalculation(dxr1,dyr1,zr1,dx2,dy2,z2,dx1,dy1,z1)+spriz)/2;
                        da    = (dxr1+dxr2+dx1)/3;
                        db    = (dyr1+dyr2+dy1)/3;
                        dc    = (zr1+zr2+z1)/3;
                        spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                        v     = v+(ColorCalculation(dxr1,dyr1,zr1,dx1,dy1,z1,dxr2,dyr2,zr2)+spriz)/2;
                        da    = (dxr2+dx1+dx4)/3;
                        db    = (dyr2+dy1+dy4)/3;
                        dc    = (zr2+z1+z4)/3;
                        spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                        v     = v+(ColorCalculation(dxr2,dyr2,zr2,dx1,dy1,z1,dx4,dy4,z4)+spriz)/2;
                        v1    = v/4;
                        if (sr3<0||sr3>w1||tr3<0||tr3>w2) Transform(sr3,tr3,-1);
                        else                              Transform(sr3,tr3,0);
                        dxr1  = fDxspline;
                        dyr1  = fDyspline;
                        zr1   = fZ;
                        if (sr2<0||sr2>w1||tr2<0||tr2>w2) Transform(sr2,tr2,-1);
                        else                              Transform(sr2,tr2,0);
                        dxr2  = fDxspline;
                        dyr2  = fDyspline;
                        zr2   = fZ;
                        da    = (dx1+dx2+dx3)/3;
                        db    = (dy1+dy2+dy3)/3;
                        dc    = (z1+z2+z3)/3;
                        spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                        v     = (ColorCalculation(dx1,dy1,z1,dx2,dy2,z2,dx3,dy3,z3)+spriz)/2;
                        da    = (dx2+dxr1+dx3)/3;
                        db    = (dy2+dyr1+dy3)/3;
                        dc    = (z2+zr1+z3)/3;
                        spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                        v     = v+(ColorCalculation(dx2,dy2,z2,dxr1,dyr1,zr1,dx3,dy3,z3)+spriz)/2;
                        da    = (dx2+dxr2+dxr1)/3;
                        db    = (dy2+dyr2+dyr1)/3;
                        dc    = (z2+zr2+zr1)/3;
                        spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                        v     = v+(ColorCalculation(dx2,dy2,z2,dxr2,dyr2,zr2,dxr1,dyr1,zr1)+spriz)/2;
                        da    = (dxr2+dx2+dx1)/3;
                        db    = (dyr2+dy2+dy1)/3;
                        dc    = (zr2+z2+z1)/3;
                        spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                        v     = v+(ColorCalculation(dxr2,dyr2,zr2,dx2,dy2,z2,dx1,dy1,z1)+spriz)/2;
                        v2    = v/4;
                        if (sr5<0||sr5>w1||tr5<0||tr5>w2) Transform(sr5,tr5,-1);
                        else                              Transform(sr5,tr5,0);
                        dxr1  = fDxspline;
                        dyr1  = fDyspline;
                        zr1   = fZ;
                        if (sr4<0||sr4>w1||tr4<0||tr4>w2) Transform(sr4,tr4,-1);
                        else                              Transform(sr4,tr4,0);
                        dxr2  = fDxspline;
                        dyr2  = fDyspline;
                        zr2   = fZ;
                        da    = (dx2+dx3+dx4)/3;
                        db    = (dy2+dy3+dy4)/3;
                        dc    = (z2+z3+z4)/3;
                        spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                        v     = (ColorCalculation(dx2,dy2,z2,dx3,dy3,z3,dx4,dy4,z4)+spriz)/2;
                        da    = (dx4+dx3+dxr1)/3;
                        db    = (dy4+dy3+dyr1)/3;
                        dc    = (z4+z3+zr1)/3;
                        spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                        v     = v+(ColorCalculation(dx4,dy4,z4,dx3,dy3,z3,dxr1,dyr1,zr1)+spriz)/2;
                        da    = (dx3+dxr2+dxr1)/3;
                        db    = (dy3+dyr2+dyr1)/3;
                        dc    = (z3+zr2+zr1)/3;
                        spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                        v     = v+(ColorCalculation(dx3,dy3,z3,dxr2,dyr2,zr2,dxr1,dyr1,zr1)+spriz)/2;
                        da    = (dx2+dxr2+dx3)/3;
                        db    = (dy2+dyr2+dy3)/3;
                        dc    = (z2+zr2+z3)/3;
                        spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                        v     = v+(ColorCalculation(dx2,dy2,z2,dxr2,dyr2,zr2,dx3,dy3,z3)+spriz)/2;
                        v3    = v/4;
                        if (sr7<0||sr7>w1||tr7<0||tr7>w2) Transform(sr7,tr7,-1);
                        else                              Transform(sr7,tr7,0);
                        dxr1  = fDxspline;
                        dyr1  = fDyspline;
                        zr1   = fZ;
                        if (sr6<0||sr6>w1||tr6<0||tr6>w2) Transform(sr6,tr6,-1);
                        else                              Transform(sr6,tr6,0);
                        dxr2  = fDxspline;
                        dyr2  = fDyspline;
                        zr2   = fZ;
                        da    = (dx1+dx3+dx4)/3;
                        db    = (dy1+dy3+dy4)/3;
                        dc    = (z1+z3+z4)/3;
                        spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                        v     = (ColorCalculation(dx1,dy1,z1,dx3,dy3,z3,dx4,dy4,z4)+spriz)/2;
                        da    = (dx4+dx3+dxr2)/3;
                        db    = (dy4+dy3+dyr2)/3;
                        dc    = (z4+z3+zr2)/3;
                        spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                        v     = v+(ColorCalculation(dx4,dy4,z4,dx3,dy3,z3,dxr2,dyr2,zr2)+spriz)/2;
                        da    = (dx4+dxr2+dxr1)/3;
                        db    = (dy4+dyr2+dyr1)/3;
                        dc    = (z4+zr2+zr1)/3;
                        spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                        v     = v+(ColorCalculation(dx4,dy4,z4,dxr2,dyr2,zr2,dxr1,dyr1,zr1)+spriz)/2;
                        da    = (dx1+dx4+dxr1)/3;
                        db    = (dy1+dy4+dyr1)/3;
                        dc    = (z1+z4+zr1)/3;
                        spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                        v     = v+(ColorCalculation(dx1,dy1,z1,dx4,dy4,z4,dxr1,dyr1,zr1)+spriz)/2;
                        v4    = v/4;
                     }
                  }
                  spriz = 0;
                  if (fShadow==kShadowsNotPainted) {
                     if (fShading==kNotShaded) {
                        v  = v*fLevels+0.5;
                        iv = fLevels-(Int_t)v;
                     } else {
                        v1  = v1*fLevels+0.5;
                        iv1 = fLevels-(Int_t)v1;
                        v2  = v2*fLevels+0.5;
                        iv2 = fLevels-(Int_t)v2;
                        v4  = v4*fLevels+0.5;
                        iv4 = fLevels-(Int_t)v4;
                     }
                  } else {
                     spriz = ShadowColorCalculation(xtaz,ytaz,ztaz,shad_noise);
                     if (fShading==kNotShaded) {
                        v  = v*fLevels/2.0;
                        iv = fLevels-(Int_t)(v+0.5);
                     } else {
                        v1  = v1*fLevels;
                        iv1 = fLevels-(Int_t)v1;
                        v2  = v2*fLevels;
                        iv2 = fLevels-(Int_t)v2;
                        v4  = v4*fLevels;
                        iv4 = fLevels-(Int_t)v4;
                     }
                  }
                  if (fShading==kNotShaded) {
                     ColorModel(iv,ui1,ui2,ui3);
                     box->SetFillColor(fNewColorIndex);
                  } else {
                     dx1 = x1;
                     dy1 = y1;
                     dx2 = x2;
                     dy2 = y2;
                     dx3 = x4;
                     dy3 = y4;
                     z1  = iv1;
                     z2  = iv2;
                     z3  = iv4;
                     da  = (dy2-dy1)*(z3-z1)-(dy3-dy1)*(z2-z1);
                     db  = (z2-z1)*(dx3-dx1)-(z3-z1)*(dx2-dx1);
                     dc  = (dx2-dx1)*(dy3-dy1)-(dx3-dx1)*(dy2-dy1);
                     dd  = -da*dx1-db*dy1-dc*z1;
                  }
                  sx1 = x1;
                  sy1 = y1;
                  sx2 = x2;
                  sy2 = y2;
                  sx3 = x4;
                  sy3 = y4;
                  if (sx2<sx1) {
                     sx4 = sx1;
                     sy4 = sy1;
                     sx1 = sx2;
                     sy1 = sy2;
                     sx2 = sx4;
                     sy2 = sy4;
                  }
                  if (sx3<sx1) {
                     sx4 = sx1;
                     sy4 = sy1;
                     sx1 = sx3;
                     sy1 = sy3;
                     sx3 = sx4;
                     sy3 = sy4;
                  }
                  if (sy2<sy3) {
                     sx4 = sx2;
                     sy4 = sy2;
                     sx2 = sx3;
                     sy2 = sy3;
                     sx3 = sx4;
                     sy3 = sy4;
                  }
                  sdx1 = 0;
                  sdx2 = 0;
                  sdx3 = 0;
                  pom1 = sy2-sy1;
                  pom2 = sx2-sx1;
                  if (pom2!=0) sdx1 = pom1/pom2;
                  pom1 = sy1;
                  pom2 = sx1;
                  sdy1 = pom1-sdx1*pom2;
                  pom1 = sy3-sy1;
                  pom2 = sx3-sx1;
                  if (pom2!=0) sdx2 = pom1/pom2;
                  pom1 = sy1;
                  pom2 = sx1;
                  sdy2 = pom1-sdx2*pom2;
                  pom1 = sy3-sy2;
                  pom2 = sx3-sx2;
                  if (pom2!=0) sdx3 = pom1/pom2;
                  pom1 = sy2;
                  pom2 = sx2;
                  sdy3 = pom1-sdx3*pom2;
                  if (sx2<sx3) {
                     if (sx1!=sx2) {
                        for (sx4=sx1;sx4<=sx2;sx4++) {
                           pom1 = sx4;
                           sdy4 = sdx1*pom1+sdy1;
                           sy4  = (Int_t)sdy4;
                           if (sx3!=sx1) {
                              sdy4 = sdx2*pom1+sdy2;
                              sy5  = (Int_t)sdy4;
                              y5 = fEnvelope[sx4];
                              if (sy4<sy5) {
                                 pom1 = sy4;
                                 sy4  = sy5;
                                 sy5  = (Int_t)pom1;
                              }
                              if ((sy4<=y5)||(sy5<y5)) {
                                 sy4 = (Int_t)TMath::Min(sy4,(Int_t)y5);
                                 sy5 = (Int_t)TMath::Min(sy5,(Int_t)y5);
                                 if (fShading==kNotShaded) {
                                    box->PaintBox(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx4+1),gPad->PixeltoY(sy5-1)+1);
                                 } else {
                                    for (il=sy5;il<=sy4+1;il++) {
                                       dx1 = sx4;
                                       if(il<=sy4) dy1 = il;
                                       else dy1 = sy4;
                                       if (dc!=0) v = (-dd-da*dx1-db*dy1)/dc;
                                       else       v =(iv1+iv2+iv4)/3;
                                       iv = (Int_t)v;
                                       ColorModel(iv,ui1,ui2,ui3);
                                       box->SetFillColor(fNewColorIndex);
                                       box->PaintBox(gPad->PixeltoX(sx4),gPad->PixeltoY(il)+1,gPad->PixeltoX(sx4+1),gPad->PixeltoY(il-1)+1);
                                    }
                                 }
                              }
                           }
                        }
                     }
                     if (sx2!=sx3) {
                        for (sx4=sx2;sx4<=sx3;sx4++) {
                           pom1 = sx4;
                           sdy4 = sdx3*pom1+sdy3;
                           sy4  = (Int_t)sdy4;
                           if (sx3!=sx1) {
                              sdy4 = sdx2*pom1+sdy2;
                              sy5  = (Int_t)sdy4;
                              y5  = fEnvelope[sx4];
                              if (sy4<sy5) {
                                 pom1 = sy4;
                                 sy4  = sy5;
                                 sy5  = (Int_t)pom1;
                              }
                              if ((sy4<=y5)||(sy5<y5)) {
                                 sy4 = (Int_t)TMath::Min(sy4,(Int_t)y5);
                                 sy5 = (Int_t)TMath::Min(sy5,(Int_t)y5);
                                 if (fShading==kNotShaded) {
                                    box->PaintBox(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx4+1),gPad->PixeltoY(sy5-1)+1);
                                 } else {
                                    for (il=sy5;il<=sy4+1;il++) {
                                       dx1 = sx4;
                                       if(il<=sy4) dy1 = il;
                                       else dy1 = sy4;
                                       if (dc!=0) v = (-dd-da*dx1-db*dy1)/dc;
                                       else       v =(iv1+iv2+iv4)/3;
                                       iv = (Int_t)v;
                                       ColorModel(iv,ui1,ui2,ui3);
                                       box->SetFillColor(fNewColorIndex);
                                       box->PaintBox(gPad->PixeltoX(sx4),gPad->PixeltoY(il)+1,gPad->PixeltoX(sx4+1),gPad->PixeltoY(il-1)+1);
                                    }
                                 }
                              }
                           }
                        }
                     }
                  } else {
                     if (sx3!=sx1) {
                        for (sx4=sx1;sx4<=sx3;sx4++) {
                           pom1 = sx4;
                           sdy4 = sdx2*pom1+sdy2;
                           sy4  = (Int_t)sdy4;
                           if (sx2!=sx1) {
                              sdy4 = sdx1*pom1+sdy1;
                              sy5  = (Int_t)sdy4;
                              y5   = fEnvelope[sx4];
                              if (sy4<sy5) {
                                 pom1 = sy4;
                                 sy4  = sy5;
                                 sy5  = (Int_t)pom1;
                              }
                              if ((sy4<=y5)||(sy5<y5)) {
                                 sy4 = (Int_t)TMath::Min(sy4,(Int_t)y5);
                                 sy5 = (Int_t)TMath::Min(sy5,(Int_t)y5);
                                 if (fShading==kNotShaded) {
                                    box->PaintBox(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx4+1),gPad->PixeltoY(sy5-1)+1);
                                 } else {
                                    for (il=sy5;il<=sy4+1;il++) {
                                       dx1 = sx4;
                                       if(il<=sy4) dy1 = il;
                                       else dy1 = sy4;
                                       if (dc!=0) v = (-dd-da*dx1-db*dy1)/dc;
                                       else       v =(iv1+iv2+iv4)/3;
                                       iv = (Int_t)v;
                                       ColorModel(iv,ui1,ui2,ui3);
                                       box->SetFillColor(fNewColorIndex);
                                       box->PaintBox(gPad->PixeltoX(sx4),gPad->PixeltoY(il)+1,gPad->PixeltoX(sx4+1),gPad->PixeltoY(il-1)+1);
                                    }
                                 }
                              }
                           }
                        }
                     }
                     if (sx2!=sx3) {
                        for (sx4=sx3;sx4<=sx2;sx4++) {
                           pom1 = sx4;
                           sdy4 = sdx3*pom1+sdy3;
                           sy4  = (Int_t)sdy4;
                           if (sx2!=sx1) {
                              sdy4 = sdx1*pom1+sdy1;
                              sy5  = (Int_t)sdy4;
                              y5 = fEnvelope[sx4];
                              if (sy4<sy5) {
                                 pom1 = sy4;
                                 sy4  = sy5;
                                 sy5  = (Int_t)pom1;
                              }
                              if ((sy4<=y5)||(sy5<y5)) {
                                 sy4 = (Int_t)TMath::Min(sy4,(Int_t)y5);
                                 sy5 = (Int_t)TMath::Min(sy5,(Int_t)y5);
                                 if (fShading==kNotShaded) {
                                    box->PaintBox(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx4+1),gPad->PixeltoY(sy5-1)+1);
                                 } else {
                                    for (il=sy5;il<=sy4+1;il++) {
                                       dx1 = sx4;
                                       if(il<=sy4) dy1 = il;
                                       else dy1 = sy4;
                                       if (dc!=0) v = (-dd-da*dx1-db*dy1)/dc;
                                       else       v =(iv1+iv2+iv4)/3;
                                       iv = (Int_t)v;
                                       ColorModel(iv,ui1,ui2,ui3);
                                       box->SetFillColor(fNewColorIndex);
                                       box->PaintBox(gPad->PixeltoX(sx4),gPad->PixeltoY(il)+1,gPad->PixeltoX(sx4+1),gPad->PixeltoY(il-1)+1);
                                    }
                                 }
                              }
                           }
                        }
                     }
                  }
                  xtaz = (dx3+dx2+dx4)/3;
                  ytaz = (dy3+dy2+dy4)/3;
                  ztaz = (z3+z2+z4)/3;
                  if (fShading==kNotShaded) v=ColorCalculation(dx2,dy2,z2,dx3,dy3,z3,dx4,dy4,z4);
                  spriz = 0;
                  if (fShadow==kShadowsNotPainted) {
                     if (fShading==kNotShaded) {
                        v  = v*fLevels;
                        iv = fLevels-(Int_t)v;
                     } else {
                        v3  = v3*fLevels;
                        iv3 = fLevels-(Int_t)v3;
                     }
                  } else {
                     spriz = ShadowColorCalculation(xtaz,ytaz,ztaz,shad_noise);
                     if (fShading==kNotShaded) {
                        v  = v*fLevels/2;
                        iv = fLevels-(Int_t)v;
                        iv = (Int_t)(iv-fLevels*spriz/2);
                     } else {
                        v3  = v3*fLevels;
                        iv3 = fLevels-(Int_t)v3;
                     }
                  }
                  if (fShading==kNotShaded) {
                     ColorModel(iv,ui1,ui2,ui3);
                     box->SetFillColor(fNewColorIndex);
                  } else {
                     dx1 = x2;
                     dy1 = y2;
                     dx2 = x3;
                     dy2 = y3;
                     dx3 = x4;
                     dy3 = y4;
                     z1  = iv2;
                     z2  = iv3;
                     z3  = iv4;
                     da  = (dy2-dy1)*(z3-z1)-(dy3-dy1)*(z2-z1);
                     db  = (z2-z1)*(dx3-dx1)-(z3-z1)*(dx2-dx1);
                     dc  = (dx2-dx1)*(dy3-dy1)-(dx3-dx1)*(dy2-dy1);
                     dd  = -da*dx1-db*dy1-dc*z1;
                  }
                  sx1 = x2;
                  sy1 = y2;
                  sx2 = x3;
                  sy2 = y3;
                  sx3 = x4;
                  sy3 = y4;
                  if (sx2<sx1) {
                     sx4 = sx1;
                     sy4 = sy1;
                     sx1 = sx2;
                     sy1 = sy2;
                     sx2 = sx4;
                     sy2 = sy4;
                  }
                  if (sx3<sx1) {
                     sx4 = sx1;
                     sy4 = sy1;
                     sx1 = sx3;
                     sy1 = sy3;
                     sx3 = sx4;
                     sy3 = sy4;
                  }
                  if (sy2<sy3) {
                     sx4 = sx2;
                     sy4 = sy2;
                     sx2 = sx3;
                     sy2 = sy3;
                     sx3 = sx4;
                     sy3 = sy4;
                  }
                  pom1 = sy2-sy1;
                  pom2 = sx2-sx1;
                  sdx1 = 0;
                  sdx2 = 0;
                  sdx3 = 0;
                  if (pom2!=0) sdx1 = pom1/pom2;
                  pom1 = sy1;
                  pom2 = sx1;
                  sdy1 = pom1-sdx1*pom2;
                  pom1 = sy3-sy1;
                  pom2 = sx3-sx1;
                  if (pom2!=0) sdx2 = pom1/pom2;
                  pom1 = sy1;
                  pom2 = sx1;
                  sdy2 = pom1-sdx2*pom2;
                  pom1 = sy3-sy2;
                  pom2 = sx3-sx2;
                  if (pom2!=0) sdx3 = pom1/pom2;
                  pom1 = sy2;
                  pom2 = sx2;
                  sdy3 = pom1-sdx3*pom2;
                  if (sx2<sx3) {
                     if (sx1!=sx2) {
                        for (sx4=sx1;sx4<=sx2;sx4++) {
                           pom1 = sx4;
                           sdy4 = sdx1*pom1+sdy1;
                           sy4  = (Int_t)sdy4;
                           if (sx3!=sx1) {
                              sdy4 = sdx2*pom1+sdy2;
                              sy5  = (Int_t)sdy4;
                              y5 = fEnvelope[sx4];
                              if (sy4<sy5) {
                                 pom1 = sy4;
                                 sy4  = sy5;
                                 sy5  = (Int_t)pom1;
                              }
                              if ((sy4<=y5)||(sy5<y5)) {
                                 sy4 = (Int_t)TMath::Min(sy4,(Int_t)y5);
                                 sy5 = (Int_t)TMath::Min(sy5,(Int_t)y5);
                                 if (fShading==kNotShaded) {
                                    box->PaintBox(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx4+1),gPad->PixeltoY(sy5-1)+1);
                                 } else {
                                    for (il=sy5;il<=sy4+1;il++) {
                                       dx1 = sx4;
                                       if(il<=sy4) dy1 = il;
                                       else dy1 = sy4;
                                       if (dc!=0) v = (-dd-da*dx1-db*dy1)/dc;
                                       else       v =(iv2+iv3+iv4)/3;
                                       iv = (Int_t)v;
                                       ColorModel(iv,ui1,ui2,ui3);
                                       box->SetFillColor(fNewColorIndex);
                                       box->PaintBox(gPad->PixeltoX(sx4),gPad->PixeltoY(il)+1,gPad->PixeltoX(sx4+1),gPad->PixeltoY(il-1)+1);
                                    }
                                 }
                              }
                           }
                        }
                     }
                     if (sx2!=sx3) {
                        for (sx4=sx2;sx4<=sx3;sx4++) {
                           pom1 = sx4;
                           sdy4 = sdx3*pom1+sdy3;
                           sy4  = (Int_t)sdy4;
                           if (sx3!=sx1) {
                              sdy4 = sdx2*pom1+sdy2;
                              sy5  = (Int_t)sdy4;
                              y5 = fEnvelope[sx4];
                              if (sy4<sy5) {
                                 pom1 = sy4;
                                 sy4  = sy5;
                                 sy5  = (Int_t)pom1;
                              }
                              if ((sy4<=y5)||(sy5<y5)) {
                                 sy4 = (Int_t)TMath::Min(sy4,(Int_t)y5);
                                 sy5 = (Int_t)TMath::Min(sy5,(Int_t)y5);
                                 if (fShading==kNotShaded) {
                                    box->PaintBox(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx4+1),gPad->PixeltoY(sy5-1)+1);
                                 } else {
                                    for (il=sy5;il<=sy4+1;il++) {
                                       dx1 = sx4;
                                       if(il<=sy4) dy1 = il;
                                       else dy1 = sy4;
                                       if (dc!=0) v = (-dd-da*dx1-db*dy1)/dc;
                                       else       v =(iv2+iv3+iv4)/3;
                                       iv = (Int_t)v;
                                       ColorModel(iv,ui1,ui2,ui3);
                                       box->SetFillColor(fNewColorIndex);
                                       box->PaintBox(gPad->PixeltoX(sx4),gPad->PixeltoY(il)+1,gPad->PixeltoX(sx4+1),gPad->PixeltoY(il-1)+1);
                                    }
                                 }
                              }
                           }
                        }
                     }
                  } else {
                     if (sx3!=sx1) {
                        for (sx4=sx1;sx4<=sx3;sx4++) {
                           pom1 = sx4;
                           sdy4 = sdx2*pom1+sdy2;
                           sy4  = (Int_t)sdy4;
                           if (sx2!=sx1) {
                              sdy4 = sdx1*pom1+sdy1;
                              sy5  = (Int_t)sdy4;
                              y5   = fEnvelope[sx4];
                              if (sy4<sy5) {
                                 pom1 = sy4;
                                 sy4  = sy5;
                                 sy5  = (Int_t)pom1;
                              }
                              if ((sy4<=y5)||(sy5<y5)) {
                                 sy4 = (Int_t)TMath::Min(sy4,(Int_t)y5);
                                 sy5 = (Int_t)TMath::Min(sy5,(Int_t)y5);
                                 if (fShading==kNotShaded) {
                                    box->PaintBox(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx4+1),gPad->PixeltoY(sy5-1)+1);
                                 } else {
                                    for (il=sy5;il<=sy4+1;il++) {
                                       dx1 = sx4;
                                       if(il<=sy4) dy1 = il;
                                       else dy1 = sy4;
                                       if (dc!=0) v = (-dd-da*dx1-db*dy1)/dc;
                                       else       v =(iv2+iv3+iv4)/3;
                                       iv = (Int_t)v;
                                       ColorModel(iv,ui1,ui2,ui3);
                                       box->SetFillColor(fNewColorIndex);
                                       box->PaintBox(gPad->PixeltoX(sx4),gPad->PixeltoY(il)+1,gPad->PixeltoX(sx4+1),gPad->PixeltoY(il-1)+1);
                                    }
                                 }
                              }
                           }
                        }
                     }
                     if (sx2!=sx3) {
                        for (sx4=sx3;sx4<=sx2;sx4++) {
                           pom1 = sx4;
                           sdy4 = sdx3*pom1+sdy3;
                           sy4  = (Int_t)sdy4;
                           if (sx2!=sx1) {
                              sdy4 = sdx1*pom1+sdy1;
                              sy5  = (Int_t)sdy4;
                              y5 = fEnvelope[sx4];
                              if (sy4<sy5) {
                                 pom1 = sy4;
                                 sy4  = sy5;
                                 sy5  = (Int_t)pom1;
                              }
                              if ((sy4<=y5)||(sy5<y5)) {
                                 sy4 = (Int_t)TMath::Min(sy4,(Int_t)y5);
                                 sy5 = (Int_t)TMath::Min(sy5,(Int_t)y5);
                                 if (fShading==kNotShaded) {
                                    box->PaintBox(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx4+1),gPad->PixeltoY(sy5-1)+1);
                                 } else {
                                    for (il=sy5;il<=sy4+1;il++) {
                                       dx1 = sx4;
                                       if(il<=sy4) dy1 = il;
                                       else dy1 = sy4;
                                       if (dc!=0) v = (-dd-da*dx1-db*dy1)/dc;
                                       else       v =(iv2+iv3+iv4)/3;
                                       iv = (Int_t)v;
                                       ColorModel(iv,ui1,ui2,ui3);
                                       box->SetFillColor(fNewColorIndex);
                                       box->PaintBox(gPad->PixeltoX(sx4),gPad->PixeltoY(il)+1,gPad->PixeltoX(sx4+1),gPad->PixeltoY(il-1)+1);
                                    }
                                 }
                              }
                           }
                        }
                     }
                  }
               }
               break;
            case kDisplayModeTriangles:
               if (fModeGroup==kModeGroupSimple) {
                  if ((q1!=q2||smer!=0)&&flag==1) {
                     s1 = q1+1;
                     t1 = q2;
                     s2 = q1;
                     t2 = q2;
                     s3 = q1;
                     t3 = q2+1;
                     s4 = q1+1;
                     t4 = q2+1;
                  }
                  if (turni==1) {
                     i1 = (Int_t)TMath::Min(w1,s1);
                     i2 = (Int_t)TMath::Min(w1,s2);
                     i3 = (Int_t)TMath::Min(w1,s3);
                     i4 = (Int_t)TMath::Min(w1,s4);
                  } else {
                     i1 = (Int_t)TMath::Max(w1-s1,0);
                     i2 = (Int_t)TMath::Max(w1-s2,0);
                     i3 = (Int_t)TMath::Max(w1-s3,0);
                     i4 = (Int_t)TMath::Max(w1-s4,0);
                  }
                  if (turnj==1) {
                     j1 = (Int_t)TMath::Min(w2,t1);
                     j2 = (Int_t)TMath::Min(w2,t2);
                     j3 = (Int_t)TMath::Min(w2,t3);
                     j4 = (Int_t)TMath::Min(w2,t4);
                  } else {
                     j1 = (Int_t)TMath::Max(w2-t1,0);
                     j2 = (Int_t)TMath::Max(w2-t2,0);
                     j3 = (Int_t)TMath::Max(w2-t3,0);
                     j4 = (Int_t)TMath::Max(w2-t4,0);
                  }
                  Transform(i1,j1,0);
                  x1 = fXt;
                  y1 = fYt;
                  Transform(i2,j2,0);
                  x2 = fXt;
                  y2 = fYt;
                  Transform(i3,j3,0);
                  x3 = fXt;
                  y3 = fYt;
                  Transform(i4,j4,0);
                  x4 = fXt;
                  y4 = fYt;
                  if ((q1!=q2||smer!=0)&&flag==1) {
                     Envelope(x1,y1,x2,y2);
                     if (fLine!=0) {
                        if (fLine==1) {
                           fXe = x2;
                           fYe = y2;
                        }
                        line->PaintLine(gPad->PixeltoX(fXs),gPad->PixeltoY(fYs)+1,gPad->PixeltoX(fXe),gPad->PixeltoY(fYe)+1);
                     }
                     Envelope(x2,y2,x3,y3);
                     if (fLine!=0) {
                        if (fLine==1) {
                           fXe = x3;
                           fYe = y3;
                        }
                        line->PaintLine(gPad->PixeltoX(fXs),gPad->PixeltoY(fYs)+1,gPad->PixeltoX(fXe),gPad->PixeltoY(fYe)+1);
                     }
                     Envelope(x2,y2,x4,y4);
                     if (fLine!=0) {
                        if (fLine==1) {
                           fXe = x4;
                           fYe = y4;
                        }
                        line->PaintLine(gPad->PixeltoX(fXs),gPad->PixeltoY(fYs)+1,gPad->PixeltoX(fXe),gPad->PixeltoY(fYe)+1);
                     }
                     Envelope(x1,y1,x4,y4);
                     if (fLine!=0) {
                        if (fLine==1) {
                           fXe = x4;
                           fYe = y4;
                        }
                        line->PaintLine(gPad->PixeltoX(fXs),gPad->PixeltoY(fYs)+1,gPad->PixeltoX(fXe),gPad->PixeltoY(fYe)+1);
                     }
                     Envelope(x3,y3,x4,y4);
                     if (fLine!=0) {
                        if (fLine==1) {
                           fXe = x4;
                           fYe = y4;
                        }
                        line->PaintLine(gPad->PixeltoX(fXs),gPad->PixeltoY(fYs)+1,gPad->PixeltoX(fXe),gPad->PixeltoY(fYe)+1);
                     }
                  }
               } else {
                  if ((q1!=q2||smer!=0)&&flag==1) {
                     s1 = q1+1;
                     t1 = q2;
                     s2 = q1;
                     t2 = q2;
                     s3 = q1;
                     t3 = q2+1;
                     s4 = q1+1;
                     t4 = q2+1;
                     if (fShading==kShaded) {
                        sr1 = s1;
                        tr1 = (Int_t)TMath::Max(t1-1,0);
                        sr2 = s2;
                        tr2 = (Int_t)TMath::Max(t2-1,0);
                        sr3 = (Int_t)TMath::Max(s2-1,0);
                        tr3 = t2;
                        sr4 = (Int_t)TMath::Max(s3-1,0);
                        tr4 = t3;
                        sr5 = s3;
                        tr5 = t3+1;
                        sr6 = s4;
                        tr6 = t4+1;
                        sr7 = s4+1;
                        tr7 = t4;
                        sr8 = s1+1;
                        tr8 = t1;
                     }
                     if (turni==1) {
                        i1 = s1;
                        i2 = s2;
                        i3 = s3;
                        i4 = s4;
                     } else {
                        i1 = (Int_t)TMath::Max(w1-s1,0);
                        i2 = (Int_t)TMath::Max(w1-s2,0);
                        i3 = (Int_t)TMath::Max(w1-s3,0);
                        i4 = (Int_t)TMath::Max(w1-s4,0);
                        if (fShading==kShaded) {
                           sr1 = (Int_t)TMath::Max(w1-sr1,0);
                           sr2 = (Int_t)TMath::Max(w1-sr2,0);
                           sr3 = (Int_t)TMath::Max(w1-sr3,0);
                           sr4 = (Int_t)TMath::Max(w1-sr4,0);
                           sr5 = (Int_t)TMath::Max(w1-sr5,0);
                           sr6 = (Int_t)TMath::Max(w1-sr6,0);
                           sr7 = (Int_t)TMath::Max(w1-sr7,0);
                           sr8 = (Int_t)TMath::Max(w1-sr8,0);
                        }
                     }
                     if (turnj==1) {
                        j1 = t1;
                        j2 = t2;
                        j3 = t3;
                        j4 = t4;
                     } else {
                        j1 = (Int_t)TMath::Max(w2-t1,0);
                        j2 = (Int_t)TMath::Max(w2-t2,0);
                        j3 = (Int_t)TMath::Max(w2-t3,0);
                        j4 = (Int_t)TMath::Max(w2-t4,0);
                        if (fShading==kShaded) {
                           tr1 = (Int_t)TMath::Max(w2-tr1,0);
                           tr2 = (Int_t)TMath::Max(w2-tr2,0);
                           tr3 = (Int_t)TMath::Max(w2-tr3,0);
                           tr4 = (Int_t)TMath::Max(w2-tr4,0);
                           tr5 = (Int_t)TMath::Max(w2-tr5,0);
                           tr6 = (Int_t)TMath::Max(w2-tr6,0);
                           tr7 = (Int_t)TMath::Max(w2-tr7,0);
                           tr8 = (Int_t)TMath::Max(w2-tr8,0);
                        }
                     }
                     Transform(i1,j1,0);
                     x1  = fXt;
                     y1  = fYt;
                     dx1 = fDxspline;
                     dy1 = fDyspline;
                     z1  = fZ;
                     Transform(i2,j2,0);
                     x2  = fXt;
                     y2  = fYt;
                     dx2 = fDxspline;
                     dy2 = fDyspline;
                     z2  = fZ;
                     Transform(i3,j3,0);
                     x3  = fXt;
                     y3  = fYt;
                     dx3 = fDxspline;
                     dy3 = fDyspline;
                     z3  = fZ;
                     Transform(i4,j4,0);
                     x4  = fXt;
                     y4  = fYt;
                     dx4 = fDxspline;
                     dy4 = fDyspline;
                     z4  = fZ;
                     Envelope(x1,y1,x2,y2);
                     Envelope(x2,y2,x3,y3);
                     xtaz = (dx1+dx2+dx4)/3;
                     ytaz = (dy1+dy2+dy4)/3;
                     ztaz = (z1+z2+z4)/3;
                     v    = ColorCalculation(dx1,dy1,z1,dx2,dy2,z2,dx4,dy4,z4);
                     if (fShading==kShaded) {
                        if (fShadow==kShadowsNotPainted) {
                           if (sr1<0||sr1>w1||tr1<0||tr1>w2) Transform(sr1,tr1,-1);
                           else                              Transform(sr1,tr1,0);
                           dxr1 = fDxspline;
                           dyr1 = fDyspline;
                           zr1  = fZ;
                           if (sr8<0||sr8>w1||tr8<0||tr8>w2) Transform(sr8,tr8,-1);
                           else                              Transform(sr8,tr8,0);
                           dxr2 = fDxspline;
                           dyr2 = fDyspline;
                           zr2  = fZ;
                           v    = v+ColorCalculation(dxr1,dyr1,zr1,dx2,dy2,z2,dx1,dy1,z1);
                           v    = v+ColorCalculation(dxr1,dyr1,zr1,dx1,dy1,z1,dxr2,dyr2,zr2);
                           v    = v+ColorCalculation(dxr2,dyr2,zr2,dx1,dy1,z1,dx4,dy4,z4);
                           v1   = v/4;
                           if (sr3<0||sr3>w1||tr3<0||tr3>w2) Transform(sr3,tr3,-1);
                           else                              Transform(sr3,tr3,0);
                           dxr1 = fDxspline;
                           dyr1 = fDyspline;
                           zr1  = fZ;
                           if (sr2<0||sr2>w1||tr2<0||tr2>w2) Transform(sr2,tr2,-1);
                           else                              Transform(sr2,tr2,0);
                           dxr2 = fDxspline;
                           dyr2 = fDyspline;
                           zr2  = fZ;
                           v    = ColorCalculation(dx1,dy1,z1,dx2,dy2,z2,dx3,dy3,z3);
                           v    = v+ColorCalculation(dx2,dy2,z2,dxr1,dyr1,zr1,dx3,dy3,z3);
                           v    = v+ColorCalculation(dx2,dy2,z2,dxr2,dyr2,zr2,dxr1,dyr1,zr1);
                           v    = v+ColorCalculation(dxr2,dyr2,zr2,dx2,dy2,z2,dx1,dy1,z1);
                           v2   = v/4;
                           if (sr5<0||sr5>w1||tr5<0||tr5>w2) Transform(sr5,tr5,-1);
                           else                              Transform(sr5,tr5,0);
                           dxr1 = fDxspline;
                           dyr1 = fDyspline;
                           zr1  = fZ;
                           if (sr4<0||sr4>w1||tr4<0||tr4>w2) Transform(sr4,tr4,-1);
                           else                              Transform(sr4,tr4,0);
                           dxr2 = fDxspline;
                           dyr2 = fDyspline;
                           zr2  = fZ;
                           v    = ColorCalculation(dx2,dy2,z2,dx3,dy3,z3,dx4,dy4,z4);
                           v    = v+ColorCalculation(dx4,dy4,z4,dx3,dy3,z3,dxr1,dyr1,zr1);
                           v    = v+ColorCalculation(dx3,dy3,z3,dxr2,dyr2,zr2,dxr1,dyr1,zr1);
                           v    = v+ColorCalculation(dx2,dy2,z2,dxr2,dyr2,zr2,dx3,dy3,z3);
                           v3   = v/4;
                           if (sr7<0||sr7>w1||tr7<0||tr7>w2) Transform(sr7,tr7,-1);
                           else                              Transform(sr7,tr7,0);
                           dxr1 = fDxspline;
                           dyr1 = fDyspline;
                           zr1  = fZ;
                           if (sr6<0||sr6>w1||tr6<0||tr6>w2) Transform(sr6,tr6,-1);
                           else                              Transform(sr6,tr6,0);
                           dxr2 = fDxspline;
                           dyr2 = fDyspline;
                           zr2  = fZ;
                           v    = ColorCalculation(dx1,dy1,z1,dx3,dy3,z3,dx4,dy4,z4);
                           v    = v+ColorCalculation(dx4,dy4,z4,dx3,dy3,z3,dxr2,dyr2,zr2);
                           v    = v+ColorCalculation(dx4,dy4,z4,dxr2,dyr2,zr2,dxr1,dyr1,zr1);
                           v    = v+ColorCalculation(dx1,dy1,z1,dx4,dy4,z4,dxr1,dyr1,zr1);
                           v4   = v/4;
                        } else {
                           spriz = ShadowColorCalculation(xtaz,ytaz,ztaz,shad_noise);
                           v     = v+spriz;
                           v     = v/2;
                           if (sr1<0||sr1>w1||tr1<0||tr1>w2) Transform(sr1,tr1,-1);
                           else                              Transform(sr1,tr1,0);
                           dxr1  = fDxspline;
                           dyr1  = fDyspline;
                           zr1   = fZ;
                           if (sr8<0||sr8>w1||tr8<0||tr8>w2) Transform(sr8,tr8,-1);
                           else                              Transform(sr8,tr8,0);
                           dxr2  = fDxspline;
                           dyr2  = fDyspline;
                           zr2   = fZ;
                           da    = (dxr1+dx2+dx1)/3;
                           db    = (dyr1+dy2+dy1)/3;
                           dc    = (zr1+z2+z1)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dxr1,dyr1,zr1,dx2,dy2,z2,dx1,dy1,z1)+spriz)/2;
                           da    = (dxr1+dxr2+dx1)/3;
                           db    = (dyr1+dyr2+dy1)/3;
                           dc    = (zr1+zr2+z1)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dxr1,dyr1,zr1,dx1,dy1,z1,dxr2,dyr2,zr2)+spriz)/2;
                           da    = (dxr2+dx1+dx4)/3;
                           db    = (dyr2+dy1+dy4)/3;
                           dc    = (zr2+z1+z4)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dxr2,dyr2,zr2,dx1,dy1,z1,dx4,dy4,z4)+spriz)/2;
                           v1    = v/4;
                           if (sr3<0||sr3>w1||tr3<0||tr3>w2) Transform(sr3,tr3,-1);
                           else                              Transform(sr3,tr3,0);
                           dxr1  = fDxspline;
                           dyr1  = fDyspline;
                           zr1   = fZ;
                           if (sr2<0||sr2>w1||tr2<0||tr2>w2) Transform(sr2,tr2,-1);
                           else                              Transform(sr2,tr2,0);
                           dxr2  = fDxspline;
                           dyr2  = fDyspline;
                           zr2   = fZ;
                           da    = (dx1+dx2+dx3)/3;
                           db    = (dy1+dy2+dy3)/3;
                           dc    = (z1+z2+z3)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = (ColorCalculation(dx1,dy1,z1,dx2,dy2,z2,dx3,dy3,z3)+spriz)/2;
                           da    = (dx2+dxr1+dx3)/3;
                           db    = (dy2+dyr1+dy3)/3;
                           dc    = (z2+zr1+z3)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dx2,dy2,z2,dxr1,dyr1,zr1,dx3,dy3,z3)+spriz)/2;
                           da    = (dx2+dxr2+dxr1)/3;
                           db    = (dy2+dyr2+dyr1)/3;
                           dc    = (z2+zr2+zr1)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dx2,dy2,z2,dxr2,dyr2,zr2,dxr1,dyr1,zr1)+spriz)/2;
                           da    = (dxr2+dx2+dx1)/3;
                           db    = (dyr2+dy2+dy1)/3;
                           dc    = (zr2+z2+z1)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dxr2,dyr2,zr2,dx2,dy2,z2,dx1,dy1,z1)+spriz)/2;
                           v2    = v/4;
                           if (sr5<0||sr5>w1||tr5<0||tr5>w2) Transform(sr5,tr5,-1);
                           else                              Transform(sr5,tr5,0);
                           dxr1  = fDxspline;
                           dyr1  = fDyspline;
                           zr1   = fZ;
                           if (sr4<0||sr4>w1||tr4<0||tr4>w2) Transform(sr4,tr4,-1);
                           else                              Transform(sr4,tr4,0);
                           dxr2  = fDxspline;
                           dyr2  = fDyspline;
                           zr2   = fZ;
                           da    = (dx2+dx3+dx4)/3;
                           db    = (dy2+dy3+dy4)/3;
                           dc    = (z2+z3+z4)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = (ColorCalculation(dx2,dy2,z2,dx3,dy3,z3,dx4,dy4,z4)+spriz)/2;
                           da    = (dx4+dx3+dxr1)/3;
                           db    = (dy4+dy3+dyr1)/3;
                           dc    = (z4+z3+zr1)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dx4,dy4,z4,dx3,dy3,z3,dxr1,dyr1,zr1)+spriz)/2;
                           da    = (dx3+dxr2+dxr1)/3;
                           db    = (dy3+dyr2+dyr1)/3;
                           dc    = (z3+zr2+zr1)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dx3,dy3,z3,dxr2,dyr2,zr2,dxr1,dyr1,zr1)+spriz)/2;
                           da    = (dx2+dxr2+dx3)/3;
                           db    = (dy2+dyr2+dy3)/3;
                           dc    = (z2+zr2+z3)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dx2,dy2,z2,dxr2,dyr2,zr2,dx3,dy3,z3)+spriz)/2;
                           v3    = v/4;
                           if (sr7<0||sr7>w1||tr7<0||tr7>w2) Transform(sr7,tr7,-1);
                           else                              Transform(sr7,tr7,0);
                           dxr1  = fDxspline;
                           dyr1  = fDyspline;
                           zr1   = fZ;
                           if (sr6<0||sr6>w1||tr6<0||tr6>w2) Transform(sr6,tr6,-1);
                           else                              Transform(sr6,tr6,0);
                           dxr2  = fDxspline;
                           dyr2  = fDyspline;
                           zr2   = fZ;
                           da    = (dx1+dx3+dx4)/3;
                           db    = (dy1+dy3+dy4)/3;
                           dc    = (z1+z3+z4)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = (ColorCalculation(dx1,dy1,z1,dx3,dy3,z3,dx4,dy4,z4)+spriz)/2;
                           da    = (dx4+dx3+dxr2)/3;
                           db    = (dy4+dy3+dyr2)/3;
                           dc    = (z4+z3+zr2)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dx4,dy4,z4,dx3,dy3,z3,dxr2,dyr2,zr2)+spriz)/2;
                           da    = (dx4+dxr2+dxr1)/3;
                           db    = (dy4+dyr2+dyr1)/3;
                           dc    = (z4+zr2+zr1)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dx4,dy4,z4,dxr2,dyr2,zr2,dxr1,dyr1,zr1)+spriz)/2;
                           da    = (dx1+dx4+dxr1)/3;
                           db    = (dy1+dy4+dyr1)/3;
                           dc    = (z1+z4+zr1)/3;
                           spriz = ShadowColorCalculation(da,db,dc,shad_noise);
                           v     = v+(ColorCalculation(dx1,dy1,z1,dx4,dy4,z4,dxr1,dyr1,zr1)+spriz)/2;
                           v4    = v/4;
                        }
                     }
                     spriz = 0;
                     if (fShadow==kShadowsNotPainted) {
                        if (fShading==kNotShaded) {
                           v  = v*fLevels+0.5;
                           iv = fLevels-(Int_t)v;
                        } else {
                           v1  = v1*fLevels;
                           iv1 = fLevels-(Int_t)v1;
                           v2  = v2*fLevels;
                           iv2 = fLevels-(Int_t)v2;
                           v4  = v4*fLevels;
                           iv4 = fLevels-(Int_t)v4;
                        }
                     } else {
                        spriz = ShadowColorCalculation(xtaz,ytaz,ztaz,shad_noise);
                        if (fShading==kNotShaded) {
                           v  = v*fLevels/2.0;
                           iv = fLevels-(Int_t)(v+0.5);
                        } else {
                           v1  = v1*fLevels;
                           iv1 = fLevels-(Int_t)v1;
                           v2  = v2*fLevels;
                           iv2 = fLevels-(Int_t)v2;
                           v4  = v4*fLevels;
                           iv4 = fLevels-(Int_t)v4;
                        }
                     }
                     if (fShading==kNotShaded) {
                        ColorModel(iv,ui1,ui2,ui3);
                        line->SetLineColor(fNewColorIndex);
                     } else {
                        dx1 = x1;
                        dy1 = y1;
                        dx2 = x2;
                        dy2 = y2;
                        dx3 = x4;
                        dy3 = y4;
                        z1  = iv1;
                        z2  = iv2;
                        z3  = iv4;
                        da  = (dy2-dy1)*(z3-z1)-(dy3-dy1)*(z2-z1);
                        db  = (z2-z1)*(dx3-dx1)-(z3-z1)*(dx2-dx1);
                        dc  = (dx2-dx1)*(dy3-dy1)-(dx3-dx1)*(dy2-dy1);
                        dd  = -da*dx1-db*dy1-dc*z1;
                     }
                     sx1 = x1;
                     sy1 = y1;
                     sx2 = x2;
                     sy2 = y2;
                     if (sx2<sx1) {
                        sx4 = sx1;
                        sy4 = sy1;
                        sx1 = sx2;
                        sy1 = sy2;
                        sx2 = sx4;
                        sy2 = sy4;
                     }
                     sdx1 = 0;
                     pom1 = sy2-sy1;
                     pom2 = sx2-sx1;
                     if (pom2!=0) sdx1 = pom1/pom2;
                     pom1 = sy1;
                     pom2 = sx1;
                     sdy1 = pom1-sdx1*pom2;
                     for (sx4=sx1,sx5=sx1,sy5=sy1;sx4<=sx2;sx4++) {
                        pom1 = sx4;
                        sdy4 = sdx1*pom1+sdy1;
                        sy4  = (Int_t)sdy4;
                        if (sy4<=fEnvelope[sx4]) {
                           fEnvelope[sx4] = sy4;
                           if (fShading==kNotShaded) {
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           } else {
                              dx1 = sx4;
                              dy1 = sy4;
                              if (dc!=0) v = (-dd-da*dx1-db*dy1)/dc;
                              else v = (iv1+iv2+iv4)/3;
                              iv = (Int_t)v;
                              ColorModel(iv,ui1,ui2,ui3);
                              line->SetLineColor(fNewColorIndex);
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           }
                           sy5 = sy4;
                        } else {
                        sy4 = fEnvelope[sx4];
                           if (fShading==kNotShaded&&sy5<=fEnvelope[sx5]) {
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           } else if (sy5<=fEnvelope[sx5]) {
                              dx1 = sx4;
                              dy1 = sy4;
                              if (dc!=0) v = (-dd-da*dx1-db*dy1)/dc;
                              else v = (iv1+iv2+iv4)/3;
                              iv = (Int_t)v;
                              ColorModel(iv,ui1,ui2,ui3);
                              line->SetLineColor(fNewColorIndex);
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           }
                           sy5 = fEnvelope[sx4];
                        }
                        sx5 = sx4;
                     }
                     sx1 = x1;
                     sy1 = y1;
                     sx3 = x4;
                     sy3 = y4;
                     if (sx3<sx1) {
                        sx4 = sx1;
                        sy4 = sy1;
                        sx1 = sx3;
                        sy1 = sy3;
                        sx3 = sx4;
                        sy3 = sy4;
                     }
                     pom1 = sy3-sy1;
                     pom2 = sx3-sx1;
                     if (pom2!=0) sdx2 = pom1/pom2;
                     pom1  = sy1;
                     pom2  = sx1;
                     sdy2  = pom1-sdx2*pom2;
                     sx1p  = sx1;
                     sy1p  = sy1;
                     sx3p  = sx3;
                     sdx2p = sdx2;
                     sdy2p = sdy2;
                     dap   = da;
                     dbp   = db;
                     dcp   = dc;
                     ddp   = dd;
                     uip   = fNewColorIndex;
                     xtaz  = (dx3+dx2+dx4)/3;
                     ytaz  = (dy3+dy2+dy4)/3;
                     ztaz  = (z3+z2+z4)/3;
                     if (fShading==kNotShaded) v = ColorCalculation(dx2,dy2,z2,dx3,dy3,z3,dx4,dy4,z4);
                     spriz = 0;
                     if (fShadow==kShadowsNotPainted) {
                        if (fShading==kNotShaded) {
                           v  =  v*fLevels;
                           iv = fLevels-(Int_t)v;
                        } else {
                           v3 = v3*fLevels;
                           iv3 = fLevels-(Int_t)v3;
                        }
                     } else {
                        spriz = ShadowColorCalculation(xtaz,ytaz,ztaz,shad_noise);
                        if (fShading==kNotShaded) {
                           v  =  v*fLevels/2;
                           iv = fLevels-(Int_t)v;
                           iv = (Int_t)(iv-fLevels*spriz/2);
                        } else {
                           v3  = v3*fLevels;
                           iv3 = fLevels-(Int_t)v3;
                        }
                     }
                     if (fShading==kNotShaded) {
                        ColorModel(iv,ui1,ui2,ui3);
                        line->SetLineColor(fNewColorIndex);
                     } else {
                        dx1 = x2;
                        dy1 = y2;
                        dx2 = x3;
                        dy2 = y3;
                        dx3 = x4;
                        dy3 = y4;
                        z1 = iv2;
                        z2 = iv3;
                        z3 = iv4;
                        da = (dy2-dy1)*(z3-z1)-(dy3-dy1)*(z2-z1);
                        db = (z2-z1)*(dx3-dx1)-(z3-z1)*(dx2-dx1);
                        dc = (dx2-dx1)*(dy3-dy1)-(dx3-dx1)*(dy2-dy1);
                        dd = -da*dx1-db*dy1-dc*z1;
                     }
                     sx1 = x2;
                     sy1 = y2;
                     sx2 = x3;
                     sy2 = y3;
                     if (sx2<sx1) {
                        sx4 = sx1;
                        sy4 = sy1;
                        sx1 = sx2;
                        sy1 = sy2;
                        sx2 = sx4;
                        sy2 = sy4;
                     }
                     pom1 = sy2-sy1;
                     pom2 = sx2-sx1;
                     sdx1 = 0;
                     if (pom2!=0) sdx1 = pom1/pom2;
                     pom1 = sy1;
                     pom2 = sx1;
                     sdy1 = pom1-sdx1*pom2;
                     for (sx4=sx1,sx5=sx1,sy5=sy1;sx4<=sx2;sx4++) {
                        pom1 = sx4;
                        sdy4 = sdx1*pom1+sdy1;
                        sy4  = (Int_t)sdy4;
                        if (sy4<=fEnvelope[sx4]) {
                           fEnvelope[sx4] = sy4;
                           if (fShading==kNotShaded) {
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           } else {
                              dx1 = sx4;
                              dy1 = sy4;
                              if (dc!=0) v = (-dd-da*dx1-db*dy1)/dc;
                              else v = (iv1+iv2+iv4)/3;
                              iv = (Int_t)v;
                              ColorModel(iv,ui1,ui2,ui3);
                              line->SetLineColor(fNewColorIndex);
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           }
                           sy5 = sy4;
                        } else {
                           sy4 = fEnvelope[sx4];
                           if (fShading==kNotShaded&&sy5<=fEnvelope[sx5]) {
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           } else if (sy5<=fEnvelope[sx5]) {
                              dx1 = sx4;
                              dy1 = sy4;
                              if (dc!=0) v = (-dd-da*dx1-db*dy1)/dc;
                              else v = (iv1+iv2+iv4)/3;
                              iv = (Int_t)v;
                              ColorModel(iv,ui1,ui2,ui3);
                              line->SetLineColor(fNewColorIndex);
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           }
                           sy5 = fEnvelope[sx4];
                        }
                        sx5 = sx4;
                     }
                     sx1 = x2;
                     sy1 = y2;
                     sx2 = x4;
                     sy2 = y4;
                     if (sx2<sx1) {
                        sx4 = sx1;
                        sy4 = sy1;
                        sx1 = sx2;
                        sy1 = sy2;
                        sx2 = sx4;
                        sy2 = sy4;
                     }
                     pom1 = sy2-sy1;
                     pom2 = sx2-sx1;
                     sdx1 = 0;
                     if (pom2!=0) sdx1 = pom1/pom2;
                     pom1 = sy1;
                     pom2 = sx1;
                     sdy1 = pom1-sdx1*pom2;
                     for (sx4=sx1,sx5=sx1,sy5=sy1;sx4<=sx2;sx4++) {
                        pom1 = sx4;
                        sdy4 = sdx1*pom1+sdy1;
                        sy4  = (Int_t)sdy4;
                        if (sy4<=fEnvelope[sx4]) {
                           fEnvelope[sx4] = sy4;
                           if (fShading==kNotShaded) {
                           line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                        } else {
                           dx1 = sx4;
                           dy1 = sy4;
                           if (dc!=0) v = (-dd-da*dx1-db*dy1)/dc;
                           else v = (iv1+iv2+iv4)/3;
                           iv = (Int_t)v;
                           ColorModel(iv,ui1,ui2,ui3);
                           line->SetLineColor(fNewColorIndex);
                           line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                        }
                        sy5 = sy4;
                        } else {
                           sy4 = fEnvelope[sx4];
                           if (fShading==kNotShaded&&sy5<=fEnvelope[sx5]) {
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           } else if (sy5<=fEnvelope[sx5]) {
                              dx1 = sx4;
                              dy1 = sy4;
                              if (dc!=0) v = (-dd-da*dx1-db*dy1)/dc;
                              else v = (iv1+iv2+iv4)/3;
                              iv = (Int_t)v;
                              ColorModel(iv,ui1,ui2,ui3);
                              line->SetLineColor(fNewColorIndex);
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           }
                           sy5 = fEnvelope[sx4];
                        }
                        sx5 = sx4;
                     }
                     for (sx4=sx1p,sx5=sx1p,sy5=sy1p;sx4<=sx3p;sx4++) {
                        pom1 = sx4;
                        sdy4 = sdx2p*pom1+sdy2p;
                        sy4  = (Int_t)sdy4;
                        if (sy4<=fEnvelope[sx4]) {
                           fEnvelope[sx4] = sy4;
                           if (fShading==kNotShaded) {
                              line->SetLineColor(uip);
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           } else {
                              dx1 = sx4;
                              dy1 = sy4;
                              if (dcp!=0) v = (-ddp-dap*dx1-dbp*dy1)/dcp;
                              else v = (iv1+iv2+iv4)/3;
                              iv = (Int_t)v;
                              ColorModel(iv,ui1,ui2,ui3);
                              line->SetLineColor(fNewColorIndex);
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           }
                           sy5 = sy4;
                        } else {
                           sy4 = fEnvelope[sx4];
                           if (fShading==kNotShaded&&sy5<=fEnvelope[sx5]) {
                              line->SetLineColor(uip);
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           } else if (sy5<=fEnvelope[sx5]) {
                              dx1 = sx4;
                              dy1 = sy4;
                              if (dcp!=0) v = (-ddp-dap*dx1-dbp*dy1)/dcp;
                              else v = (iv1+iv2+iv4)/3;
                              iv = (Int_t)v;
                              ColorModel(iv,ui1,ui2,ui3);
                              line->SetLineColor(fNewColorIndex);
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           }
                           sy5 = fEnvelope[sx4];
                        }
                        sx5 = sx4;
                     }
                     sx2 = x3;
                     sy2 = y3;
                     sx3 = x4;
                     sy3 = y4;
                     if (sx3<sx2) {
                        sx4 = sx2;
                        sy4 = sy2;
                        sx2 = sx3;
                        sy2 = sy3;
                        sx3 = sx4;
                        sy3 = sy4;
                     }
                     sdx2 = 0;
                     pom1 = sy3-sy2;
                     pom2 = sx3-sx2;
                     if (pom2!=0) sdx2 = pom1/pom2;
                     pom1 = sy2;
                     pom2 = sx2;
                     sdy2 = pom1-sdx2*pom2;
                     for (sx4=sx2,sx5=sx2,sy5=sy2;sx4<=sx3;sx4++) {
                        pom1 = sx4;
                        sdy4 = sdx2*pom1+sdy2;
                        sy4  = (Int_t)sdy4;
                        if (sy4<=fEnvelope[sx4]) {
                           fEnvelope[sx4] = sy4;
                           if (fShading==kNotShaded) {
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           } else {
                              dx1 = sx4;
                              dy1 = sy4;
                              if (dc!=0) v = (-dd-da*dx1-db*dy1)/dc;
                              else v = (iv1+iv2+iv4)/3;
                              iv = (Int_t)v;
                              ColorModel(iv,ui1,ui2,ui3);
                              line->SetLineColor(fNewColorIndex);
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           }
                           sy5 = sy4;
                        } else {
                           sy4 = fEnvelope[sx4];
                           if (fShading==kNotShaded&&sy5<=fEnvelope[sx5]) {
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           } else if (sy5<=fEnvelope[sx5]) {
                              dx1 = sx4;
                              dy1 = sy4;
                              if (dc!=0) v = (-dd-da*dx1-db*dy1)/dc;
                              else v = (iv1+iv2+iv4)/3;
                              iv = (Int_t)v;
                              ColorModel(iv,ui1,ui2,ui3);
                              line->SetLineColor(fNewColorIndex);
                              line->PaintLine(gPad->PixeltoX(sx4),gPad->PixeltoY(sy4)+1,gPad->PixeltoX(sx5),gPad->PixeltoY(sy5)+1);
                           }
                           sy5 = fEnvelope[sx4];
                        }
                        sx5 = sx4;
                     }
                  }
               }
               break;
         }
         if (flag==1) {
            x   = x1;
            y   = y1;
            x1  = x2;
            y1  = y2;
            x2  = x;
            y2  = y;
            x   = x1d;
            y   = y1d;
            x1d = x2d;
            y1d = y2d;
            x2d = x;
            y2d = y;
            if (smer==0) q1 += 1;
            else         q2 += 1;
         } else {
            x1  = x2;
            y1  = y2;
            x1d = x2d;
            y1d = y2d;
         }
      } while ((q1!=qv||(q2!=(qv-1) && q2!=w2)||smer!=0||flag!=1) &&
               ((q1!=(qv-1) && q1!=w1)||q2!=qv||smer!=1||flag!=1) &&
                uhl!=1);
      if (qv<=w2&&qv<=w1) {
         if (uhl==0) {
            if (smer==0) {
               smer = 1;
               q1   = 0;
               flag = 0;
               q2   = qv;
               xp1  = x1;
               yp1  = y1;
               goto l2;
            } else {
               smer = 0;
               uhl  = 1;
               q1   = qv;
               q2   = qv-1;
               xp2  = x1;
               yp2  = y1;
               x1   = xp1;
               y1   = yp1;
               flag = 1;
               goto l2;
            }
         } else {
            if (smer==0) {
               smer = 1;
               x1   = xp2;
               y1   = yp2;
               q1   = qv-1;
               q2   = qv;
               flag = 1;
               goto l2;
            }
         }
      }
      q2 = 0;
      qv += 1;
      q1 = qv;
      if (q1>w1) {
         q2   = qv;
         q1   = 0;
         smer = 1;
         flag = 0;
         uhl  = 0;
         if (q2<=w2) goto l2;
      }
   } while (q1<=w1&&q2<=w2);
   if (fChanmarkEnDis==kChannelMarksDrawn ||
       fChanlineEnDis==kChannelGridDrawn) {
      line->SetLineWidth(1);
      for (i=fBx1;i<=fBx2;i++) fEnvelope[i] = fBy2;
      turni = 0;
      turnj = 0;
      Transform(w1,0,0);
      x1 = fXt;
      Transform(0,0,0);
      x2 = fXt;
      Transform(0,w2,0);
      x3 = fXt;
      if (x2>=x1) turnj = 1;
      if (x3>=x2) turni = 1;
      q1 = 1;
      q2 = 0;
      qv = 1;
      do {
         uhl  = 0;
         smer = 0;
         flag = 0;
lc2:
         if (turni==1) {
            i = q1;
         } else {
            i = w1-q1;
         }
         if (turnj==1) {
            j = q2;
         } else {
            j = w2-q2;
         }
         Transform(i,j,0);
         x1 = fXt;
         y1 = fYt;
         Transform(i,j,-1);
         x1d = fXt;
         y1d = fYt;
         do {
            if (flag==0) {
               flag = 1;
               if (smer==0) q1 -= 1;
               else         q2 -= 1;
            } else {
               flag = 0;
               if (smer==0) q2 += 1;
               else         q1 += 1;
            }
            if (turni==1) {
               i = q1;
            } else {
               i = w1-q1;
            }
            if (turnj==1) {
               j = q2;
            } else {
               j = w2-q2;
            }
            Transform(i,j,0);
            x2 = fXt;
            y2 = fYt;
            if (flag==1) {
               x  = x1;
               y  = y1;
               x1 = x2;
               y1 = y2;
               x2 = x;
               y2 = y;
            }
            Envelope(x1,y1,x2,y2);
            if (fChanlineEnDis==kChannelGridDrawn) {
               if (fLine!=0) {
                  if (fLine==1) {
                     fXe = x2;
                     fYe = y2;
                  }
                  line->SetLineColor(fChanlineColor);
                  line->PaintLine(gPad->PixeltoX(fXs),gPad->PixeltoY(fYs)+1,gPad->PixeltoX(fXe),gPad->PixeltoY(fYe)+1);
               }
            }
            if (fChanmarkEnDis==kChannelMarksDrawn) {
               if (y1<=fEnvelope[x1]) {
                  DrawMarker(x1,y1,fChanmarkWidth,fChanmarkHeight,fChanmarkStyle);
               }
            }
            if (flag==1) {
               x   = x1;
               y   = y1;
               x1  = x2;
               y1  = y2;
               x2  = x;
               y2  = y;
               x   = x1d;
               y   = y1d;
               x1d = x2d;
               y1d = y2d;
               x2d = x;
               y2d = y;
               if (smer==0) q1 += 1;
               else         q2 += 1;
            } else {
               x1  = x2;
               y1  = y2;
               x1d = x2d;
               y1d = y2d;
            }
         } while ((q1!=qv||(q2!=(qv-1)&&q2!=w2)||smer!=0||flag!=1) &&
                  ((q1!=(qv-1)&&q1!=w1)||q2!=qv||smer!=1||flag!=1) &&
                   uhl!=1);
         if (qv<=w2&&qv<=w1) {
            if (uhl==0) {
               if (smer==0) {
                  smer = 1;
                  q1   = 0;
                  flag = 0;
                  q2   = qv;
                  xp1  = x1;
                  yp1  = y1;
                  goto lc2;
               } else {
                  smer = 0;
                  uhl  = 1;
                  q1   = qv;
                  q2   = qv-1;
                  xp2  = x1;
                  yp2  = y1;
                  x1   = xp1;
                  y1   = yp1;
                  flag = 1;
                  goto lc2;
               }
            } else {
               if (smer==0) {
                  smer = 1;
                  x1   = xp2;
                  y1   = yp2;
                  q1   = qv-1;
                  q2   = qv;
                  flag = 1;
                  goto lc2;
               }
            }
         }
         q2  = 0;
         qv += 1;
         q1  = qv;
         if (q1>w1) {
            q2   = qv;
            q1   = 0;
            smer = 1;
            flag = 0;
            uhl  = 0;
            if (q2<=w2) goto lc2;
         }
      } while (q1<=w1&&q2<=w2);
   }

   // Paint axis.
   static char chopt[10] = "";
   if (fViewAngle==0) {
      axis->PaintAxis(p101x, p101y, p111x, p111y, bmin, bmax, ndivx, "");
      axis->PaintAxis(p011x, p011y, p111x, p111y, bmin, bmax, ndivx, "");
      if(fAlpha+fBeta<90)
         axis->PaintAxis(p110x, p110y, p111x, p111y, bmin, bmax, ndivx, "");
      ndivx = fH2->GetXaxis()->GetNdivisions();
      bmin  = fH2->GetXaxis()->GetXmin();
      bmax  = fH2->GetXaxis()->GetXmax();
      xaxis->SetLabelOffset(xaxis->GetLabelOffset()-xaxis->GetTickSize());
      chopt[0] = 0; strlcat(chopt, "SDH-",10);
      if (ndivx < 0) {
         strlcat(chopt, "N",10);
         ndivx = -ndivx;
      }
      xaxis->PaintAxis(p010x, p010y, p110x, p110y, bmin, bmax, ndivx, chopt);
      ndivy = fH2->GetYaxis()->GetNdivisions();
      bmin  = fH2->GetYaxis()->GetXmin();
      bmax  = fH2->GetYaxis()->GetXmax();
      yaxis->SetLabelOffset(yaxis->GetLabelOffset()+yaxis->GetTickSize());
      chopt[0] = 0; strlcat(chopt, "SDH+",10);
      if (ndivy < 0) {
         strlcat(chopt, "N",10);
         ndivy = -ndivy;
      }
      yaxis->PaintAxis(p100x, p100y, p110x, p110y, bmin, bmax, ndivy, chopt);
      if(fAlpha+fBeta<90){
         ndivz = 510;
         bmin  = fZmin;
         bmax  = fZmax;
         zaxis->SetLabelOffset(zaxis->GetLabelOffset()-zaxis->GetTickSize());
         if (fZscale==kZScaleLog) {
            ndivz = 510;
            if (bmin <= 0) bmin=0.001*bmax;
            zaxis->PaintAxis(p010x, p010y, p011x, p011y, bmin, bmax, ndivz, "G+");
         } else if (fZscale==kZScaleSqrt) {
            TF1 *f1=new TF1("f1","sqrt(x)",bmin,bmax);
            TGaxis *a1 = new TGaxis(p010x, p010y, p011x, p011y, "f1", ndivz, "SDH+");
            a1->SetLabelOffset(a1->GetLabelOffset()-a1->GetTickSize());
            a1->Paint();
            delete f1;
            delete a1;
         } else {
            chopt[0] = 0; strlcat(chopt, "SDH+",10);
            if (ndivz < 0) {
               strlcat(chopt, "N",10);
               ndivz = -ndivz;
            }
            zaxis->PaintAxis(p010x, p010y, p011x, p011y, bmin, bmax, ndivz, chopt);
         }
      }
   } else if (fViewAngle==90) {
      axis->PaintAxis(p001x, p001y, p101x, p101y, bmin, bmax, ndivx, "");
      axis->PaintAxis(p111x, p111y, p101x, p101y, bmin, bmax, ndivx, "");
      if(fAlpha+fBeta<90)
         axis->PaintAxis(p100x, p100y, p101x, p101y, bmin, bmax, ndivx, "");
      ndivx = fH2->GetXaxis()->GetNdivisions();
      bmin  = fH2->GetXaxis()->GetXmin();
      bmax  = fH2->GetXaxis()->GetXmax();
      xaxis->SetLabelOffset(xaxis->GetLabelOffset()+xaxis->GetTickSize());
      chopt[0] = 0; strlcat(chopt, "SDH+",10);
      if (ndivx < 0) {
         strlcat(chopt, "N",10);
         ndivx = -ndivx;
      }
      xaxis->PaintAxis(p000x, p000y, p100x, p100y, bmin, bmax, ndivx, chopt);
      ndivy = fH2->GetYaxis()->GetNdivisions();
      bmin  = fH2->GetYaxis()->GetXmin();
      bmax  = fH2->GetYaxis()->GetXmax();
      yaxis->SetLabelOffset(yaxis->GetLabelOffset()+yaxis->GetTickSize());
      chopt[0] = 0; strlcat(chopt, "SDH+",10);
      if (ndivy < 0) {
         strlcat(chopt, "N",10);
         ndivy = -ndivy;
      }
      yaxis->PaintAxis(p100x, p100y, p110x, p110y, bmin, bmax, ndivy, chopt);
      if(fAlpha+fBeta<90){
         ndivz = 510;
         bmin  = fZmin;
         bmax  = fZmax;
         zaxis->SetLabelOffset(zaxis->GetLabelOffset()-zaxis->GetTickSize());
         if (fZscale==kZScaleLog) {
            ndivz = 510;
            if (bmin <= 0) bmin=0.001*bmax;
            zaxis->PaintAxis(p110x, p110y, p111x, p111y, bmin, bmax, ndivz, "G+");
         } else if (fZscale==kZScaleSqrt) {
            TF1 *f1=new TF1("f1","sqrt(x)",bmin,bmax);
            TGaxis *a1 = new TGaxis(p110x, p110y, p111x, p111y, "f1", ndivz, "SDH+");
            a1->SetLabelOffset(a1->GetLabelOffset()-a1->GetTickSize());
            a1->Paint();
            delete f1;
            delete a1;
         } else {
            chopt[0] = 0; strlcat(chopt, "SDH+",10);
            if (ndivz < 0) {
               strlcat(chopt, "N",10);
               ndivz = -ndivz;
            }
            zaxis->PaintAxis(p110x, p110y, p111x, p111y, bmin, bmax, ndivz, chopt);
         }
      }
   } else if (fViewAngle==180) {
      axis->PaintAxis(p011x, p011y, p001x, p001y, bmin, bmax, ndivx, "");
      axis->PaintAxis(p101x, p101y, p001x, p001y, bmin, bmax, ndivx, "");
      if(fAlpha+fBeta<90)
         axis->PaintAxis(p000x, p000y, p001x, p001y, bmin, bmax, ndivx, "");
      ndivx = fH2->GetXaxis()->GetNdivisions();
      bmin  = fH2->GetXaxis()->GetXmin();
      bmax  = fH2->GetXaxis()->GetXmax();
      xaxis->SetLabelOffset(xaxis->GetLabelOffset()+xaxis->GetTickSize());
      chopt[0] = 0; strlcat(chopt, "SDH+",10);
      if (ndivx < 0) {
         strlcat(chopt, "N",10);
         ndivx = -ndivx;
      }
      xaxis->PaintAxis(p000x, p000y, p100x, p100y, bmin, bmax, ndivx, chopt);
      ndivy = fH2->GetYaxis()->GetNdivisions();
      bmin  = fH2->GetYaxis()->GetXmin();
      bmax  = fH2->GetYaxis()->GetXmax();
      yaxis->SetLabelOffset(yaxis->GetLabelOffset()-yaxis->GetTickSize());
      chopt[0] = 0; strlcat(chopt, "SDH-",10);
      if (ndivy < 0) {
         strlcat(chopt, "N",10);
         ndivy = -ndivy;
      }
      yaxis->PaintAxis(p000x, p000y, p010x, p010y, bmin, bmax, ndivy, chopt);
      if(fAlpha+fBeta<90){
         ndivz = 510;
         bmin  = fZmin;
         bmax  = fZmax;
         zaxis->SetLabelOffset(zaxis->GetLabelOffset()-zaxis->GetTickSize());
         if (fZscale==kZScaleLog) {
            ndivz=510;
            if (bmin <= 0) bmin=0.001*bmax;
            zaxis->PaintAxis(p100x, p100y, p101x, p101y, bmin, bmax, ndivz, "G+");
         } else if (fZscale==kZScaleSqrt) {
            TF1 *f1=new TF1("f1","sqrt(x)",bmin,bmax);
            TGaxis *a1 = new TGaxis(p100x, p100y, p101x, p101y, "f1", ndivz, "SDH+");
            a1->SetLabelOffset(a1->GetLabelOffset()-a1->GetTickSize());
            a1->Paint();
            delete f1;
            delete a1;
         } else {
            chopt[0] = 0; strlcat(chopt, "SDH+",10);
            if (ndivz < 0) {
               strlcat(chopt, "N",10);
               ndivz = -ndivz;
            }
            zaxis->PaintAxis(p100x, p100y, p101x, p101y, bmin, bmax, ndivz, chopt);
         }
      }
   } else if (fViewAngle==270) {
      axis->PaintAxis(p111x, p111y, p011x, p011y, bmin, bmax, ndivx, "");
      axis->PaintAxis(p001x, p001y, p011x, p011y, bmin, bmax, ndivx, "");
      if(fAlpha+fBeta<90)
         axis->PaintAxis(p010x, p010y, p011x, p011y, bmin, bmax, ndivx, "");
      ndivx = fH2->GetXaxis()->GetNdivisions();
      bmin  = fH2->GetXaxis()->GetXmin();
      bmax  = fH2->GetXaxis()->GetXmax();
      xaxis->SetLabelOffset(xaxis->GetLabelOffset()-xaxis->GetTickSize());
      chopt[0] = 0; strlcat(chopt, "SDH-",10);
      if (ndivx < 0) {
         strlcat(chopt, "N",10);
         ndivx = -ndivx;
      }
      xaxis->PaintAxis(p010x, p010y, p110x, p110y, bmin, bmax, ndivx, chopt);
      ndivy = fH2->GetYaxis()->GetNdivisions();
      bmin  = fH2->GetYaxis()->GetXmin();
      bmax  = fH2->GetYaxis()->GetXmax();
      yaxis->SetLabelOffset(yaxis->GetLabelOffset()-yaxis->GetTickSize());
      chopt[0] = 0; strlcat(chopt, "SDH-",10);
      if (ndivy < 0) {
         strlcat(chopt, "N",10);
         ndivy = -ndivy;
      }
      yaxis->PaintAxis(p000x, p000y, p010x, p010y, bmin, bmax, ndivy, chopt);
      if(fAlpha+fBeta<90){
         ndivz = 510;
         bmin  = fZmin;
         bmax  = fZmax;
         zaxis->SetLabelOffset(zaxis->GetLabelOffset()-zaxis->GetTickSize());
         if (fZscale==kZScaleLog) {
            ndivz = 510;
            if (bmin <= 0) bmin=0.001*bmax;
            zaxis->PaintAxis(p000x, p000y, p001x, p001y, bmin, bmax, ndivz, "G+");
         } else if (fZscale==kZScaleSqrt) {
            TF1 *f1=new TF1("f1","sqrt(x)",bmin,bmax);
            TGaxis *a1 = new TGaxis(p000x, p000y, p001x, p001y, "f1", ndivz, "SDH+");
            a1->SetLabelOffset(a1->GetLabelOffset()-a1->GetTickSize());
            a1->Paint();
            delete f1;
            delete a1;
         } else {
            chopt[0] = 0; strlcat(chopt, "SDH+",10);
            if (ndivz < 0) {
               strlcat(chopt, "N",10);
               ndivz = -ndivz;
            }
            zaxis->PaintAxis(p000x, p000y, p001x, p001y, bmin, bmax, ndivz, "SDH+");
         }
      }
   }

   // End.
   delete axis;
   delete xaxis;
   delete yaxis;
   delete zaxis;
}


//______________________________________________________________________________
void TSpectrum2Painter::SetDisplayMode(Int_t modeGroup,Int_t displayMode)
{
   // Sets display group mode and display mode:
   //    -modeGroup - the following group modes can be set: simple modes-kPicture2ModeGroupSimple, modes with shading according to light-kPicture2ModeGroupLight, modes with shading according to channels counts-kPicture2ModeGroupHeight, modes of combination of shading according to light and to channels counts-kPicture2ModeGroupLightHeight
   //    -displayMode - posible display modes are: points, grid, contours, bars, x_lines, y_lines, bars_x, bars_y, needles, surface, triangles

   if (modeGroup>=kModeGroupSimple&&modeGroup<=kModeGroupLightHeight) {
      if (displayMode>=kDisplayModePoints&&displayMode<=kDisplayModeTriangles) {
         fModeGroup   = modeGroup;
         fDisplayMode = displayMode;
      }
   }
}


//______________________________________________________________________________
void TSpectrum2Painter::SetPenAttr(Int_t color,Int_t style,Int_t width)
{
   // Sets pen attributes:
   //    -color - color of spectrum
   //    -style - style of pen (solid, dash, dot, dash-dot)
   //    -width - width of pen in pixels

   if (color>=0 && style >=kPenStyleSolid && style <= kPenStyleDashDot && width > 0) {
      fPenColor = color;
      fPenDash  = style;
      fPenWidth = width;
   }
}


//______________________________________________________________________________
void TSpectrum2Painter::SetNodes(Int_t nodesx,Int_t nodesy)
{
   // Sets nodes in both directions:
   //    -nodesx, nodesy, only the bins at the nodes points are displayed

   if (nodesx>1&&nodesy>1) {
      fNodesx = nodesx;
      fNodesy = nodesy;
   }
}


//______________________________________________________________________________
void TSpectrum2Painter::SetAngles(Int_t alpha,Int_t beta,Int_t view)
{
   // Sets angles of the view:
   //    -alpha - angles of display,alpha+beta must be less or equal to 90, alpha- angle between base line of Canvas and right lower edge of picture base plane
   //    -beta - angle between base line of Canvas and left lower edge of picture base plane
   //    -view - rotation angle of the view, it can be 0, 90, 180, 270 degrees

   if (alpha>=0&&alpha<=90&&beta>=0&&beta<=90&&alpha+beta<=90) {
      fAlpha = alpha;
      fBeta  = beta;
   }
   view = view/90;
   if (view>=0&&view<=3) fViewAngle = view*90;
}


//______________________________________________________________________________
void TSpectrum2Painter::SetZScale(Int_t scale)
{
   // Sets z-axis scale:
   //    -scale - linear, sqrt or log

   if (scale>=kZScaleLinear&&scale<=kZScaleSqrt) {
      fZscale = scale;
   }
}


//______________________________________________________________________________
void TSpectrum2Painter::SetColorAlgorithm(Int_t colorAlgorithm)
{
   // Sets shading color algorithm:
   //    -colorAlgorithm - applies only for rainbowed display modes
   //    (rgb smooth alorithm, rgb modulo color component, cmy smooth alorithm,
   //    cmy modulo color component, cie smooth alorithm,
   //    cie modulo color component, yiq smooth alorithm,
   //    yiq modulo color component, hsv smooth alorithm,
   //    hsv modulo color component, it does not apply for simple display modes
   //    algorithm group

   if (fModeGroup!=kModeGroupSimple) {
      if (colorAlgorithm>=kColorAlgRgbSmooth&&colorAlgorithm<=kColorAlgHvsModulo) fColorAlg = colorAlgorithm;
   }
}


//______________________________________________________________________________
void TSpectrum2Painter::SetColorIncrements(Double_t r,Double_t g,Double_t b)
{
   // Sets color increments between two color levels for r, g, b components:
   //    -r, g, b - color increments between two color levels

   if (r>=0&&r<=255&&g>=0&&g<=255&&b>=0&&b<=255) {
      fRainbow1Step = r;
      fRainbow2Step = g;
      fRainbow3Step = b;
   }
}


//______________________________________________________________________________
void TSpectrum2Painter::SetLightPosition(Int_t x,Int_t y,Int_t z)
{
   // Sets position of fictive light source in 3D space:
   //    -x, y, z

   if (x>=0&&y>=0&&z>=0) {
      fXlight = x;
      fYlight = y;
      fZlight = z;
   }
}


//______________________________________________________________________________
void TSpectrum2Painter::SetShading(Int_t shading,Int_t shadow)
{
   // Sets on/off shading and shadow switches:
   //    -shading - determines whether the picture will shaded, smoothed (no shading, shading), for rainbowed display modes only
   //    -shadow - determines whether shadow will be drawn, for rainbowed display modes with shading according to light

   if (fModeGroup!=kModeGroupSimple) {
      if (shading==kNotShaded||shading==kShaded) fShading = shading;
      if (shadow==kShadowsNotPainted||shadow==kShadowsPainted) fShadow = shadow;
   }
}


//______________________________________________________________________________
void TSpectrum2Painter::SetBezier(Int_t bezier)
{
   // Sets on/off Bezier smoothing:
   //    -bezier - determines Bezier interpolation (applies only for simple
   //    display modes group for grid, x_lines, y_lines display modes)

   if (fDisplayMode==kDisplayModeGrid || fDisplayMode==kDisplayModeLinesX ||
       fDisplayMode==kDisplayModeLinesY) {
      if (bezier==kBezierInterpol||bezier==kNoBezierInterpol) fBezier = bezier;
   }
}


//______________________________________________________________________________
void TSpectrum2Painter::SetContourWidth(Int_t width)
{
   // Sets width between horizontal slices:
   //    -width - width between contours, applies only for contours display mode

   if (width>=1) fContWidth = width;
}


//______________________________________________________________________________
void TSpectrum2Painter::SetLightHeightWeight(Double_t weight)
{
   // Sets weight between shading according to fictive light source and according to channels counts:
   //    -weight - weight between shading according to fictive light source and according to channels counts, applies only for kPicture2ModeGroupLightHeight modes group

   if (fModeGroup==kModeGroupLightHeight) {
      if (weight>=0&&weight<=1) fLHweight = weight;
   }
}


//______________________________________________________________________________
void TSpectrum2Painter::SetChanMarks(Int_t enable,Int_t color,Int_t width,Int_t height,Int_t style)
{
   // Sets enables/disables drawing of channel marks and sets their attributes:
   //    -enable - decides whether the channel marks are shown or not
   //    -color - color of channel marks
   //    -width - width of channel marks in pixels
   //    -height - height of channel marks in pixels
   //    -style - style of channel marks (dot, cross, star, rectangle, X, diamond, triangle)

   if (enable==kChannelMarksNotDrawn||enable==kChannelMarksDrawn) {
      if (enable==kChannelMarksDrawn) {
         if (style>=kChannelMarksStyleDot&&style<=kChannelMarksStyleTriangle) {
            fChanmarkStyle  = style;
            fChanmarkColor  = color;
            if (width>=4) {
               fChanmarkWidth  = width;
            }
            else fChanmarkWidth  = 4;
            if (height>=4) {
               fChanmarkHeight = height;
            }
            else fChanmarkHeight  = 4;
         }
      }
      fChanmarkEnDis = enable;
   }
}


//______________________________________________________________________________
void TSpectrum2Painter::SetChanGrid(Int_t enable,Int_t color)
{
   //   This function sets enables/disables drawing of channel grid and sets its color:
   //         -enable - decides whether the channel grid is shown or not
   //         -color - color of channel grid

   if (enable==kChannelGridNotDrawn||enable==kChannelGridDrawn) {
      if (enable==kChannelGridDrawn) {
         fChanlineColor=color;
      }
      fChanlineEnDis=enable;
   }
}


//______________________________________________________________________________
void TSpectrum2Painter::GetDisplayMode(Int_t &modeGroup,Int_t &displayMode)
{
   // Gets display group mode and display mode:
   //    -modeGroup - the following group modes might have been set: simple modes-kPicture2ModeGroupSimple, modes with shading according to light-kPicture2ModeGroupLight, modes with shading according to channels counts-kPicture2ModeGroupHeight, modes of combination of shading according to light and to channels counts-kPicture2ModeGroupLightHeight
   //    -displayMode - display modes that might have been set: points, grid, contours, bars, x_lines, y_lines, bars_x, bars_y, needles, surface, triangles

   modeGroup   = fModeGroup;
   displayMode = fDisplayMode;
}


//______________________________________________________________________________
void TSpectrum2Painter::GetPenAttr(Int_t &color, Int_t &style, Int_t &width)
{
   // Gets pen attributes:
   //    -color - color of spectrum
   //    -style - style of pen (solid, dash, dot, dash-dot)
   //    -width - width of pen in pixels

   color = fPenColor;
   style = fPenDash;
   width = fPenWidth;
}


//______________________________________________________________________________
void TSpectrum2Painter::GetNodes(Int_t &nodesx,Int_t &nodesy)
{
   // Gets nodes in both directions:
   //    -nodesx, nodesy, only the bins at the nodes points are displayed

   nodesx = fNodesx;
   nodesy = fNodesy;
}


//______________________________________________________________________________
void TSpectrum2Painter::GetAngles(Int_t &alpha,Int_t &beta,Int_t &view)
{
   // Gets angles of the view:
   //    -alpha - angle between base line of Canvas and right lower edge of picture base plane
   //    -beta - angle between base line of Canvas and left lower edge of picture base plane
   //    -view - rotation angle of the view, it can be 0, 90, 180, 270 degrees

   alpha = fAlpha;
   beta  = fBeta;
   view  = fViewAngle;
}


//______________________________________________________________________________
void TSpectrum2Painter::GetZScale(Int_t &scale)
{
   // Gets z-axis scale:
   //    -scale - it can be linear, sqrt or log

   scale = fZscale;
}


//______________________________________________________________________________
void TSpectrum2Painter::GetColorAlgorithm(Int_t &colorAlgorithm)
{
   // Gets shading color algorithm:
   //    -colorAlgorithm - rgb smooth alorithm, rgb modulo color component, cmy smooth alorithm, cmy modulo color component, cie smooth alorithm, cie modulo color component, yiq smooth alorithm, yiq modulo color component, hsv smooth alorithm, hsv modulo algorithm

   colorAlgorithm = fColorAlg;
}


//______________________________________________________________________________
void TSpectrum2Painter::GetColorIncrements(Double_t &r,Double_t &g,Double_t &b)
{
   // Gets color increments between two color levels for r, g, b components:
   //    -r, g, b - color increments between two color levels

   r = fRainbow1Step;
   g = fRainbow2Step;
   b = fRainbow3Step;
}


//______________________________________________________________________________
void TSpectrum2Painter::GetLightPosition(Int_t &x,Int_t &y,Int_t &z)
{
   // Gets position of fictive light source in 3D space:
   //    -x, y, z

   x = fXlight;
   y = fYlight;
   z = fZlight;
}


//______________________________________________________________________________
void TSpectrum2Painter::GetShading(Int_t &shading,Int_t &shadow)
{
   // Gets shading and shadow switches:
   //    -shading - determines whether the picture will shaded, smoothed (no shading, shading), for rainbowed display modes only
   //    -shadow - determines whether shadow will be drawn, for rainbowed display modes with shading according to light

   shading = fShading;
   shadow  = fShadow;
}


//______________________________________________________________________________
void TSpectrum2Painter::GetBezier(Int_t &bezier)
{
   // Gets Bezier smoothing switch:
   //    -bezier - determines Bezier interpolation (applies only for simple display modes group for grid, x_lines, y_lines display modes)

   bezier = fBezier;
}


//______________________________________________________________________________
void TSpectrum2Painter::GetContourWidth(Int_t &width)
{
   // Gets width between horizontal slices:
   //    -width - width between contours, applies only for contours display mode

   width = fContWidth;
}


//______________________________________________________________________________
void TSpectrum2Painter::GetLightHeightWeight(Double_t &weight)
{
   // Gets weight between shading according to fictive light source and according to channels counts:
   //    -weight - weight between shading according to fictive light source and according to channels counts, applies only for kPicture2ModeGroupLightHeight modes group

   weight = fLHweight;
}


//______________________________________________________________________________
void TSpectrum2Painter::GetChanMarks(Int_t &enable,Int_t &color,Int_t &width,Int_t &height,Int_t &style)
{
   // Gets drawing attributes for channel marks:
   //    -enable - decides whether the channel marks are shown or not
   //    -color - color of channel marks
   //    -width - width of channel marks in pixels
   //    -height - height of channel marks in pixels
   //    -style - style of channel marks (dot, cross, star, rectangle, X, diamond, triangle)

   style  = fChanmarkStyle,width=fChanmarkWidth,height=fChanmarkHeight,color=fChanmarkColor;
   enable = fChanmarkEnDis;
}


//______________________________________________________________________________
void TSpectrum2Painter::GetChanGrid(Int_t &enable,Int_t &color)
{
   // This function gets attributes for drawing channel:
   //    -enable - decides whether the channel grid is shown or not
   //    -color - color of channel grid

   color  = fChanlineColor;
   enable = fChanlineEnDis;
}


//______________________________________________________________________________
void TSpectrum2Painter::PaintSpectrum(TH2* h2, Option_t *option, Int_t bs)
{
   // This function allows to set all the possible options available in
   // TSpectrum2Painter and paint "h2".
   //
   // TSpectrum2Painter offers a large set of options/attributes. In the
   // "option" parameter each of them can be set to specific values via
   // "operators" in the option itself. for instance on can do:
   //
   //  h2->Draw("SPEC a(30,30,0)");
   //
   // to draw h2 with TSpectrum2Painter using all the default attributes except
   // the viewing angles. The operators' names are case unsensitive (one can use
   // "a" or "A"). Operators parameters are seperated by ",". The operators can
   // be put is any order in the option. Operators must be serparated by " ".
   // No " " characters should be put in an operator. This help page describes
   // all the available operators.
   //
   //                               * * *
   //
   // The way "h2" will be painted is controled with 2 parameters the "Display
   // modes groups" and the "Display Modes".
   //
   //   "Display modes groups" can take the following values:
   //
   //   0 = Simple      - it covers simple display modes using one color only
   //   1 = Light       - in this group the shading is carried out according to
   //                     the position of the fictive light source
   //   2 = Height      - in this group the shading is carried out according to
   //                     the channel contents
   //   3 = LightHeight - combination of two previous shading algorithms. One
   //                     can control the weight between both algorithms.
   //
   //   "Display modes" can take the following values:
   //
   //    1 = Points.
   //    2 = Grid.
   //    3 = Contours.
   //    4 = Bars.
   //    5 = LinesX.
   //    6 = LinesY.
   //    7 = BarsX.
   //    8 = BarsY.
   //    9 = Needles.
   //   10 = Surface.
   //   11 = Triangles.
   //
   // Using this function these parameters can be set using the "dm" operator
   // in the option. Example:
   //
   //   h2->Draw("SPEC dm(1,2)");
   //
   // will paint the 2D histogram h2 using the "Light Display mode group" and
   // the "Grid Display mode". The following table summarizes all the possible
   // combinations of the "Display modes groups" and the "Display modes".
   //
   //                  +--------+-------+--------+--------------+
   //                  | Simple | Light | Height | Light-Height |
   //      +-----------+--------+-------+--------+--------------+
   //      | Points    |   X    |   X   |   X    |      X       |
   //      +-----------+--------+-------+--------+--------------+
   //      | Grid      |   X    |   X   |   X    |      X       |
   //      +-----------+--------+-------+--------+--------------+
   //      | Contours  |   X    |   -   |   X    |      -       |
   //      +-----------+--------+-------+--------+--------------+
   //      | Bars      |   X    |   -   |   X    |      -       |
   //      +-----------+--------+-------+--------+--------------+
   //      | LinesX    |   X    |   X   |   X    |      X       |
   //      +-----------+--------+-------+--------+--------------+
   //      | LinesY    |   X    |   X   |   X    |      X       |
   //      +-----------+--------+-------+--------+--------------+
   //      | BarsX     |   X    |   -   |   X    |      -       |
   //      +-----------+--------+-------+--------+--------------+
   //      | BarsY     |   X    |   -   |   X    |      -       |
   //      +-----------+--------+-------+--------+--------------+
   //      | Needles   |   X    |   -   |   -    |      -       |
   //      +-----------+--------+-------+--------+--------------+
   //      | Surface   |   -    |   X   |   X    |      X       |
   //      +-----------+--------+-------+--------+--------------+
   //      | Triangles |   X    |   X   |   X    |      X       |
   //      +-----------+--------+-------+--------+--------------+
   //
   //                               * * *
   //
   // The Pen Attributes can be changed using pa(color, style, width). Example:
   //
   //   h2->Draw("SPEC dm(1,2) pa(2,1,2)");
   //
   // sets the line color to 2, line type to 1 and line width to2. Note that if
   // pa() is not specified, the histogram "h2" line attributes are used. Note
   // also that operators for SPEC option can be cummulated and specified in
   // any order.
   //
   //                               * * *
   //
   // The buffer size can be change with bf(size). Example:
   //
   //   h2->Draw("SPEC bf(8000)");
   //
   // The spectrum painter needs a buffer to paint the spectrum. By default the
   // buffer size is set to 1600. In most cases this buffer size is enough. But
   // if the canvas size is very big, for instance 8000x5000 this buffer size is
   // too small. An error message is issued telling to use the option bf().
   //
   //                               * * *
   //
   // The number of nodes can be change with n(nodesx, nodesy). Example:
   //
   //   h2->Draw("SPEC n(40,40)");
   //
   // Sometimes the displayed region is rather large. When displaying all
   // channels pictures become very dense and complicated. It is very difficult
   // to understand the overall shape of data. "n(nx,ny)" allows to change the
   // density of displayed channels. Only the channels coinciding with given
   // nodes are displayed.
   //
   //                               * * *
   //
   // The visualization angles can be changed with a(alpha, beta, view).
   // Example:
   //
   //   h2->Draw("SPEC n(40,40) dm(0,1) a(30,30,0)");
   //
   // Alpha defines the angle between bottom horizontal screen line and the
   // displayed space on the right side of the picture and beta on the left
   // side, respectively. One can rotate the 3-d space around vertical axis
   // going through the center of it employing the view parameter. Allowed
   // values are 0, 90, 180 and 270 degrees.
   //
   //                               * * *
   //
   // zs(scale) changes the scale of the Z-axis Possible values are:
   //
   //   0 = Linear (default)
   //   1 = Log
   //   2 = Sqrt
   //
   // If gPad->SetLogz() has been set, log scale on Z-axis is set automatically.
   // No need to use the zs() operator. Note that the X and Y axis are always
   // linear.
   //
   //                               * * *
   //
   // ci(r,g,b), were r,g and b are floats defines the colors increments.
   // For sophisticated shading (Light, Height and LightHeight Display Modes
   // Groups) the color palette starts from the basic pen color (see pa()
   // function). There is a predefined number of color levels (256). Color in
   // every level is calculated by adding the increments of the r, g, b
   // components to the previous level. Using this function one can change the
   // color increments between two neighboring color levels. The function does
   // not apply dor the Simple Display Modes Group. The default values are:
   // (1,1,1).
   //
   //                               * * *
   //
   // ca(color_algorithm) allows to choose the Color Algorithm.
   // To define the colors one can employ one of the following color algorithms
   // (RGB, CMY, CIE, YIQ, HVS models). When the level of a component reaches
   // the limit value one can choose either smooth transition (by decreasing
   // the limit value) or a sharp modulo transition (continuing with 0 value).
   // This makes possible to realize various visual effects. One can choose from
   // the following set of the algorithms:
   //
   //   0 = RGB Smooth
   //   1 = RGB Modulo
   //   2 = CMY Smooth
   //   3 = CMY Modulo
   //   4 = CIE Smooth
   //   5 = CIE Modulo
   //   6 = YIQ Smooth
   //   7 = YIQ Modulo
   //   8 = HVS Smooth
   //   9 = HVS Modulo
   //
   // This function does not apply on Simple display modes group. Default
   // value is 0. Example:
   //
   //   h2->Draw("SPEC c1(4) dm(0,1) a(30,30,0)");
   //
   // choose CMY Modulo to paint the "h2" histogram.
   //
   //                               * * *
   //
   // lp(x,y,z) set the light position.
   // In Light and LightHeight display modes groups the color palette is
   // calculated according to the fictive light source position in 3-d space.
   // Using this function one can change the position of the source and thus
   // to achieve various graphical effects. This function does not apply for
   // Simple and Height display modes groups. Default is:
   // lp(1000,1000,100).
   //
   //                               * * *
   //
   // s(shading,shadow) allows to set the shading.
   // The picture's surface is composed of triangles. If desired the edges of
   // the neighboring triangles can be smoothed (shaded). If desired the
   // display of the shadow can be painted as well. The function does not apply
   // for Simple display modes group. The possible values for shading are:
   //
   //   0 = Not Shaded
   //   1 = Shaded
   //
   // The possible values for shadow are:
   //
   //   0 = Shadows are not painted
   //   1 = Shadows are painted
   //
   // Default values: s(1,0)
   //
   //                               * * *
   //
   // b(bezier) set the Bezier smoothing.
   // For Simple display modes group and for Grid, LinesX and LinesY display
   // modes one can smooth data using Bezier smoothing algorithm. The function
   // does not apply for other display modes groups and display modes. Possible
   // values are:
   //
   //   0 = No bezier smoothing
   //   1 = Bezier smoothing
   //
   // Default value is: b(0)
   //
   //                               * * *
   //
   // cw(width) set the contour width.
   // This function applies only for the Contours display mode. One can change
   // the width between horizontal slices and thus their density.
   // Default value: cw(50)
   //
   //                               * * *
   //
   // lhw(weight) set the light height weight.
   // For LightHeight display modes group one can change the weight between
   // both shading algorithms. The function does not apply for other display
   // modes groups. Default value is lhw(0.5).
   //
   //                               * * *
   //
   // cm(enable,color,width,height,style) allows to draw a marker on each node.
   // In addition to the surface drawn using any above given algorithm one can
   // display channel marks. One can control the color as well as the width,
   // height (in pixels) and the style of the marks. The parameter enable can
   // be set to
   //
   //   0 =  Channel marks are not drawn
   //   1 =  Channel marks drawn
   //
   // The possible styles can be chosen from the set:
   //
   //   1 = Dot
   //   2 = Cross
   //   3 = Star
   //   4 = Rectangle
   //   5 = X
   //   6 = Diamond
   //   7 = Triangle.
   //
   //                               * * *
   //
   // cg(enable,color) channel grid.
   // In addition to the surface drawn using any above given algorithm one can
   // display grid using the color parameter. The parameter enable can be set
   // to:
   //
   //   0 = Grid not drawn
   //   1 = Grid drawn
   //
   //                               * * *
   //
   // See example in $ROOTSYS/tutorials/spectrum/spectrumpainter.C
   //Begin_Html
   /*
   <img src="gif/spectrumpainter.gif">
   */
   //End_Html

   TString opt = option;

   TSpectrum2Painter sp(h2, bs);

   if (gPad->GetLogz()) sp.SetZScale(kZScaleLog);
   sp.SetPenAttr(h2->GetLineColor(), h2->GetLineStyle(), h2->GetLineWidth());

   TString token;
   Int_t i1, i2, i3, i4, i5;
   Double_t f1, f2, f3;
   Ssiz_t from = 4;

   // Decode the paint options.
   while (opt.Tokenize(token, from, "[ (]")) {

      // Display Mode
      if (token=="dm") {
         opt.Tokenize(token, from, ","); i1 = token.Atoi();
         if (i1<0 || i1>3) {
            printf("PaintSpectrum: Display modes groups should be in the [0,3] range\n");
            i1 = 0;
         }
         opt.Tokenize(token, from, ")"); i2 = token.Atoi();
         if (i2<1 || i2>11) {
            printf("PaintSpectrum: Display modes should be in the [1,11] range\n");
            i2 = 1;
         }
         sp.SetDisplayMode(i1, i2);

      // Pen Attributes
      } else if (token=="pa") {
         opt.Tokenize(token, from, ","); i1 = token.Atoi();
         opt.Tokenize(token, from, ","); i2 = token.Atoi();
         opt.Tokenize(token, from, ")"); i3 = token.Atoi();
         sp.SetPenAttr(i1, i2, i3);

      // Nodes
      } else if (token=="n") {
         opt.Tokenize(token, from, ","); i1 = token.Atoi();
         opt.Tokenize(token, from, ")"); i2 = token.Atoi();
         sp.SetNodes(i1, i2);

      // Color Algorithm
      } else if (token=="ca") {
         opt.Tokenize(token, from, ")"); i1 = token.Atoi();
         if (i1<0 || i1>9) {
            printf("PaintSpectrum: Color Algorithm should be in the [0,9] range\n");
            i1 = 1;
         }
         sp.SetColorAlgorithm(i1);

      // Z Scale
      } else if (token=="zs") {
         opt.Tokenize(token, from, ")"); i1 = token.Atoi();
         if (i1<0 || i1>2) {
            printf("PaintSpectrum: Z-Scale should be in the [0,2] range\n");
            i1 = 0;
         }
         sp.SetZScale(i1);

      // Color Increment
      } else if (token=="ci") {
         opt.Tokenize(token, from, ","); f1 = token.Atof();
         opt.Tokenize(token, from, ","); f2 = token.Atof();
         opt.Tokenize(token, from, ")"); f3 = token.Atof();
         sp.SetColorIncrements(f1, f2, f3);

      // Light Height Weight
      } else if (token=="lhw") {
         opt.Tokenize(token, from, ")"); f1 = token.Atof();
         sp.SetLightHeightWeight(f1);

      // Light Position
      } else if (token=="lp") {
         opt.Tokenize(token, from, ","); i1 = token.Atoi();
         opt.Tokenize(token, from, ","); i2 = token.Atoi();
         opt.Tokenize(token, from, ")"); i3 = token.Atoi();
         sp.SetLightPosition(i1, i2, i3);

      // Contour Width
      } else if (token=="cw") {
         opt.Tokenize(token, from, ")"); i1 = token.Atoi();
         sp.SetContourWidth(i1);

      // Bezier
      } else if (token=="b") {
         opt.Tokenize(token, from, ")"); i1 = token.Atoi();
         if (i1<0 || i1>1) {
            printf("PaintSpectrum: Bezier should be in the [0,1] range\n");
            i1 = 0;
         }
         sp.SetBezier(i1);

      // Shading
      } else if (token=="s") {
         opt.Tokenize(token, from, ","); i1 = token.Atoi();
         if (i1<0 || i1>1) {
            printf("PaintSpectrum: Shading should be in the [0,1] range\n");
            i1 = 0;
         }
         opt.Tokenize(token, from, ")"); i2 = token.Atoi();
         if (i2<0 || i2>1) {
            printf("PaintSpectrum: Shadow should be in the [0,1] range\n");
            i2 = 0;
         }
         sp.SetShading(i1, i2);

      // Channel Marks
      } else if (token=="cm") {
         opt.Tokenize(token, from, ","); i1 = token.Atoi();
         opt.Tokenize(token, from, ","); i2 = token.Atoi();
         opt.Tokenize(token, from, ","); i3 = token.Atoi();
         opt.Tokenize(token, from, ","); i4 = token.Atoi();
         opt.Tokenize(token, from, ")"); i5 = token.Atoi();
         sp.SetChanMarks(i1, i2, i3, i4, i5);

      // Channel Grid
      } else if (token=="cg") {
         opt.Tokenize(token, from, ","); i1 = token.Atoi();
         opt.Tokenize(token, from, ")"); i2 = token.Atoi();
         sp.SetChanGrid(i1, i2);

      // Angles
      } else if (token=="a" || token=="a=") {
         opt.Tokenize(token, from, ","); i1 = token.Atoi();
         opt.Tokenize(token, from, ","); i2 = token.Atoi();
         opt.Tokenize(token, from, ")"); i3 = token.Atoi();
         sp.SetAngles(i1, i2, i3);

      // Buffer size
      } else if (token=="bf") {
         // Nothing to do here, The option "bf" has been handle before.
         // But it is a valid option.
         opt.Tokenize(token, from, ")");

      // Unknown option
      } else {
         if (!token.IsNull()) {
            printf("Unknown option \"%s\"\n",token.Data());
            return;
         }
      }
   }

   sp.Paint("");
}