// @(#)root/g3d:$Name:  $:$Id: TSPHE.cxx,v 1.4 2001/06/19 15:45:24 brun Exp $
// Author: Rene Brun   13/06/97

/*************************************************************************
 * 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.             *
 *************************************************************************/

#include "TSPHE.h"
#include "TNode.h"
#include "TView.h"
#include "TVirtualPad.h"
#include "TVirtualGL.h"


ClassImp(TSPHE)


//______________________________________________________________________________
//  

// SPHE is a Sphere. It has 9 parameters: // // - name name of the shape // - title shape's title // - material (see TMaterial) // - rmin minimum radius // - rmax maximum radius // - themin theta min // - themax theta max // - phimin phi min // - phimax phi max // ROOT color indx = max(i-i0,j-j0); //______________________________________________________________________________ TSPHE::TSPHE() { //*-*-*-*-*-*-*-*-*-*-*-*-*SPHE shape default constructor*-*-*-*-*-*-*-*-*-*-*-* //*-* ============================== fRmin = 0; fRmax = 0; fThemin = 0; fThemax = 0; fPhimin = 0; fPhimax = 0; fSiTab = 0; fCoTab = 0; fCoThetaTab = 0; fNdiv = 0; fAspectRatio=1.0; faX = faY = faZ = 1.0; // Coeff along Ox } //______________________________________________________________________________ TSPHE::TSPHE(const char *name, const char *title, const char *material, Float_t rmin, Float_t rmax, Float_t themin, Float_t themax, Float_t phimin, Float_t phimax) : TShape(name, title,material) { //*-*-*-*-*-*-*-*-*-*-*-*-*SPHE shape normal constructor*-*-*-*-*-*-*-*-*-*-*-*-* //*-* ============================= fRmin = rmin; fRmax = rmax; fThemin = themin; fThemax = themax; fPhimin = phimin; fPhimax = phimax; fSiTab = 0; fCoTab = 0; fCoThetaTab = 0; fAspectRatio=1.0; faX = faY = faZ = 1.0; // Coeff along Ox SetNumberOfDivisions (20); } //______________________________________________________________________________ TSPHE::TSPHE(const char *name, const char *title, const char *material, Float_t rmax) : TShape(name, title,material) { //*-*-*-*-*-*-*-*-*-*-*-*-*SPHE shape "simplified" constructor*-*-*-*-*-*-*-*-*-*-*-*-* //*-* =================================== fRmin = 0; fRmax = rmax; fThemin = 0; fThemax = 180; fPhimin = 0; fPhimax = 360; fSiTab = 0; fCoTab = 0; fCoThetaTab = 0; fAspectRatio=1.0; faX = faY = faZ = 1.0; // Coeff along Ox SetNumberOfDivisions (20); } //______________________________________________________________________________ TSPHE::~TSPHE() { //*-*-*-*-*-*-*-*-*-*-*-*-*SPHE shape default destructor*-*-*-*-*-*-*-*-*-*-*-*-* //*-* ============================= if (fCoThetaTab) delete [] fCoThetaTab; if (fSiTab) delete [] fSiTab; if (fCoTab) delete [] fCoTab; fCoTab = 0; fSiTab = 0; fCoThetaTab=0; } //______________________________________________________________________________ Int_t TSPHE::DistancetoPrimitive(Int_t px, Int_t py) { //*-*-*-*-*-*-*-*Compute distance from point px,py to a PSPHE-*-*-*-*-*-*-*-*-*-* //*-* =========================================== //*-* //*-* Compute the closest distance of approach from point px,py to each //*-* computed outline point of the PSPHE (stolen from PCON). //*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* Int_t n = GetNumberOfDivisions()+1; Int_t numPoints = 2*n*(fNz+1); return ShapeDistancetoPrimitive(numPoints,px,py); } //______________________________________________________________________________ void TSPHE::Paint(Option_t *option) { //*-*-*-*-*-*-*-*Paint this 3-D shape with its current attributes*-*-*-*-*-*-*-* //*-* ================================================ Int_t i, j; const Int_t n = GetNumberOfDivisions()+1; Int_t nz = fNz+1; Int_t numpoints = 2*n*nz; if (nz < 2) return; if (numpoints <= 0) return; //*-* Allocate memory for points *-* Float_t *points = new Float_t[3*numpoints]; if (!points) return; SetPoints(points); Bool_t rangeView = option && *option && strcmp(option,"range")==0 ? kTRUE : kFALSE; if (!rangeView && gPad->GetView3D()) PaintGLPoints(points); //== for (i = 0; i < numpoints; i++) //== gNode->Local2Master(&points[3*i],&points[3*i]); Bool_t specialCase = kFALSE; if (TMath::Abs(TMath::Sin(2*(fPhimax - fPhimin))) <= 0.01) //mark this as a very special case, when specialCase = kTRUE; //we have to draw this PCON like a TUBE X3DBuffer *buff = new X3DBuffer; if (buff) { buff->numPoints = numpoints; buff->numSegs = 4*(nz*n-1+(specialCase == kTRUE)); buff->numPolys = 2*(nz*n-1+(specialCase == kTRUE)); } //*-* Allocate memory for points *-* buff->points = points; Int_t c = ((GetLineColor() % 8) - 1) * 4; // Basic colors: 0, 1, ... 7 if (c < 0) c = 0; //*-* Allocate memory for segments *-* Int_t indx, indx2, k; indx = indx2 = 0; buff->segs = new Int_t[buff->numSegs*3]; if (buff->segs) { //inside & outside spheres, number of segments: 2*nz*(n-1) // special case number of segments: 2*nz*n for (i = 0; i < nz*2; i++) { indx2 = i*n; for (j = 1; j < n; j++) { buff->segs[indx++] = c; buff->segs[indx++] = indx2+j-1; buff->segs[indx++] = indx2+j; } if (specialCase) { buff->segs[indx++] = c; buff->segs[indx++] = indx2+j-1; buff->segs[indx++] = indx2; } } //bottom & top lines, number of segments: 2*n for (i = 0; i < 2; i++) { indx2 = i*(nz-1)*2*n; for (j = 0; j < n; j++) { buff->segs[indx++] = c; buff->segs[indx++] = indx2+j; buff->segs[indx++] = indx2+n+j; } } //inside & outside spheres, number of segments: 2*(nz-1)*n for (i = 0; i < (nz-1); i++) { //inside sphere indx2 = i*n*2; for (j = 0; j < n; j++) { buff->segs[indx++] = c+2; buff->segs[indx++] = indx2+j; buff->segs[indx++] = indx2+n*2+j; } //outside sphere indx2 = i*n*2+n; for (j = 0; j < n; j++) { buff->segs[indx++] = c+3; buff->segs[indx++] = indx2+j; buff->segs[indx++] = indx2+n*2+j; } } //left & right sections, number of segments: 2*(nz-2) // special case number of segments: 0 if (!specialCase) { for (i = 1; i < (nz-1); i++) { for (j = 0; j < 2; j++) { buff->segs[indx++] = c; buff->segs[indx++] = 2*i * n + j*(n-1); buff->segs[indx++] = (2*i+1) * n + j*(n-1); } } } } Int_t m = n - 1 + (specialCase == kTRUE); //*-* Allocate memory for polygons *-* indx = 0; buff->polys = new Int_t[buff->numPolys*6]; if (buff->polys) { //bottom & top, number of polygons: 2*(n-1) // special case number of polygons: 2*n for (i = 0; i < 2; i++) { for (j = 0; j < n-1; j++) { buff->polys[indx++] = c+3; buff->polys[indx++] = 4; buff->polys[indx++] = 2*nz*m+i*n+j; buff->polys[indx++] = i*(nz*2-2)*m+m+j; buff->polys[indx++] = 2*nz*m+i*n+j+1; buff->polys[indx++] = i*(nz*2-2)*m+j; } if (specialCase) { buff->polys[indx++] = c+3; buff->polys[indx++] = 4; buff->polys[indx++] = 2*nz*m+i*n+j; buff->polys[indx++] = i*(nz*2-2)*m+m+j; buff->polys[indx++] = 2*nz*m+i*n; buff->polys[indx++] = i*(nz*2-2)*m+j; } } //inside & outside, number of polygons: (nz-1)*2*(n-1) for (k = 0; k < (nz-1); k++) { for (i = 0; i < 2; i++) { for (j = 0; j < n-1; j++) { buff->polys[indx++] = c+i; buff->polys[indx++] = 4; buff->polys[indx++] = (2*k+i*1)*m+j; buff->polys[indx++] = nz*2*m+(2*k+i*1+2)*n+j; buff->polys[indx++] = (2*k+i*1+2)*m+j; buff->polys[indx++] = nz*2*m+(2*k+i*1+2)*n+j+1; } if (specialCase) { buff->polys[indx++] = c+i; buff->polys[indx++] = 4; buff->polys[indx++] = (2*k+i*1)*m+j; buff->polys[indx++] = nz*2*m+(2*k+i*1+2)*n+j; buff->polys[indx++] = (2*k+i*1+2)*m+j; buff->polys[indx++] = nz*2*m+(2*k+i*1+2)*n; } } } //left & right sections, number of polygons: 2*(nz-1) // special case number of polygons: 0 if (!specialCase) { indx2 = nz*2*(n-1); for (k = 0; k < (nz-1); k++) { for (i = 0; i < 2; i++) { buff->polys[indx++] = c+2; buff->polys[indx++] = 4; buff->polys[indx++] = k==0 ? indx2+i*(n-1) : indx2+2*nz*n+2*(k-1)+i; buff->polys[indx++] = indx2+2*(k+1)*n+i*(n-1); buff->polys[indx++] = indx2+2*nz*n+2*k+i; buff->polys[indx++] = indx2+(2*k+3)*n+i*(n-1); } } buff->polys[indx-8] = indx2+n; buff->polys[indx-2] = indx2+2*n-1; } } //*-* Paint in the pad PaintShape(buff,rangeView); if (strstr(option, "x3d")) { if(buff && buff->points && buff->segs) FillX3DBuffer(buff); else { gSize3D.numPoints -= buff->numPoints; gSize3D.numSegs -= buff->numSegs; gSize3D.numPolys -= buff->numPolys; } } delete [] points; if (buff->segs) delete [] buff->segs; if (buff->polys) delete [] buff->polys; if (buff) delete buff; } //______________________________________________________________________________ void TSPHE::SetEllipse(const Float_t *factors){ if (factors[0] > 0) faX = factors[0]; if (factors[1] > 0) faY = factors[1]; if (factors[2] > 0) faZ = factors[2]; // MakeTableOfCoSin(); } //______________________________________________________________________________ void TSPHE::SetNumberOfDivisions (Int_t p) { if (GetNumberOfDivisions () == p) return; fNdiv=p; fNz = Int_t(fAspectRatio*fNdiv*(fThemax - fThemin )/(fPhimax - fPhimin )) + 1; MakeTableOfCoSin(); } //______________________________________________________________________________ void TSPHE::SetPoints(Float_t *buff) { //*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*Create SPHE points*-*-*-*-*-*-*-*-*-*-*-*-*-*-* //*-* ================== Int_t i, j; Int_t indx = 0; if (buff) { Int_t n = GetNumberOfDivisions()+1; //*-* We've to check whether the table does exist and create it //*-* since fCoTab/fSiTab are not saved with any TShape::Streamer function if (!fCoTab) MakeTableOfCoSin(); Float_t z; for (i = 0; i < fNz+1; i++) { z = fRmin * fCoThetaTab[i]; // fSinPhiTab[i]; Float_t sithet = TMath::Sqrt(TMath::Abs(1-fCoThetaTab[i]*fCoThetaTab[i])); Float_t zi = fRmin*sithet; for (j = 0; j < n; j++) { buff[indx++] = faX*zi * fCoTab[j]; buff[indx++] = faY*zi * fSiTab[j]; buff[indx++] = faZ*z; } z = fRmax * fCoThetaTab[i]; zi = fRmax*sithet; for (j = 0; j < n; j++) { buff[indx++] = faX*zi * fCoTab[j]; buff[indx++] = faY*zi * fSiTab[j]; buff[indx++] = faZ*z; } } } } //______________________________________________________________________________ void TSPHE::MakeTableOfCoSin() { const Double_t PI = TMath::ATan(1) * 4.0; const Double_t ragrad = PI/180.0; Float_t dphi = fPhimax - fPhimin; while (dphi > 360) dphi -= 360; Float_t dtet = fThemax - fThemin; while (dtet > 180) dtet -= 180; Int_t j; Int_t n = GetNumberOfDivisions () + 1; if (fCoTab) delete [] fCoTab; // Delete the old tab if any fCoTab = new Double_t [n]; if (!fCoTab ) return; if (fSiTab) delete [] fSiTab; // Delete the old tab if any fSiTab = new Double_t [n]; if (!fSiTab ) return; Double_t range = Double_t(dphi * ragrad); Double_t phi1 = Double_t(fPhimin * ragrad); Double_t angstep = range/(n-1); Double_t ph = phi1; for (j = 0; j < n; j++) { ph = phi1 + j*angstep; fCoTab[j] = TMath::Cos(ph); fSiTab[j] = TMath::Sin(ph); } n = fNz + 1; if (fCoThetaTab) delete [] fCoThetaTab; // Delete the old tab if any fCoThetaTab = new Double_t [n]; if (!fCoThetaTab ) return; range = Double_t(dtet * ragrad); phi1 = Double_t(fThemin * ragrad); angstep = range/(n-1); ph = phi1; for (j = 0; j < n; j++) { fCoThetaTab[n-j-1] = TMath::Cos(ph); ph += angstep; } } //_______________________________________________________________________ void TSPHE::PaintGLPoints(Float_t *vertex) { gVirtualGL->PaintCone(vertex,-(GetNumberOfDivisions()+1),fNz+1); } //______________________________________________________________________________ void TSPHE::Sizeof3D() const { //*-*-*-*-*-*-*Return total X3D size of this shape with its attributes*-*-*-*-*-* //*-* ======================================================= Int_t n; n = GetNumberOfDivisions()+1; Int_t nz = fNz+1; Bool_t specialCase = kFALSE; if (TMath::Abs(TMath::Sin(2*(fPhimax - fPhimin))) <= 0.01) //mark this as a very special case, when specialCase = kTRUE; //we have to draw this PCON like a TUBE gSize3D.numPoints += 2*n*nz; gSize3D.numSegs += 4*(nz*n-1+(specialCase == kTRUE)); gSize3D.numPolys += 2*(nz*n-1+(specialCase == kTRUE)); } //_______________________________________________________________________ void TSPHE::Streamer(TBuffer &b) { //*-*-*-*-*-*-*-*-*Stream a class object*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-* //*-* ========================================= if (b.IsReading()) { UInt_t R__s, R__c; Version_t R__v = b.ReadVersion(&R__s, &R__c); if (R__v > 2) { TSPHE::Class()->ReadBuffer(b, this, R__v, R__s, R__c); Int_t ndiv = fNdiv; fNdiv = 0; SetNumberOfDivisions (ndiv); return; } //====process old versions before automatic schema evolution TShape::Streamer(b); b >> fRmin; // minimum radius b >> fRmax; // maximum radius b >> fThemin; // minimum theta b >> fThemax; // maximum theta b >> fPhimin; // minimum phi b >> fPhimax; // maximum phi Int_t tNdiv; // XXX added by RvdE XXX (fNdiv is set by SetNumberOfDivisions) b >> tNdiv; if (R__v > 1) { b >> faX; b >> faY; b >> faZ; } SetNumberOfDivisions (tNdiv); // XXX added by RvdE b.CheckByteCount(R__s, R__c, TSPHE::IsA()); //====end of old versions } else { TSPHE::Class()->WriteBuffer(b,this); } }


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