Logo ROOT   6.08/07
Reference Guide
TGLPhysicalShape.cxx
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1 // @(#)root/gl:$Id$
2 // Author: Richard Maunder 25/05/2005
3 
4 /*************************************************************************
5  * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *
6  * All rights reserved. *
7  * *
8  * For the licensing terms see $ROOTSYS/LICENSE. *
9  * For the list of contributors see $ROOTSYS/README/CREDITS. *
10  *************************************************************************/
11 
12 #include "TGLPhysicalShape.h"
13 #include "TGLLogicalShape.h"
14 #include "TGLPShapeRef.h"
15 #include "TGLCamera.h"
16 #include "TGLRnrCtx.h"
17 #include "TGLIncludes.h"
18 
19 #include "TGLScene.h"
20 
21 #include "TColor.h"
22 #include "TROOT.h"
23 
24 #include <cmath>
25 
26 // For debug tracing
27 #include "TClass.h"
28 #include "TError.h"
29 
30 /** \class TGLPhysicalShape
31 \ingroup opengl
32 Concrete physical shape - a GL drawable. Physical shapes are the
33 objects the user can actually see, select, move in the viewer. It is
34 a placement of the associated local frame TGLLogicaShape into the
35 world frame. The draw process is:
36 
37 Load attributes - material colors etc
38 Load translation matrix - placement
39 Load gl name (for selection)
40 Call our associated logical shape Draw() to draw placed shape
41 
42 The physical shape supports translation, scaling and rotation,
43 selection, color changes, and permitted modification flags etc.
44 A physical shape cannot modify or be bound to another (or no)
45 logical shape - hence const & handle. It can perform mutable
46 reference counting on the logical to enable purging.
47 
48 Physical shape also maintains a list of references to it and
49 provides notifications of change and destruction.
50 See class TGLPShapeRef which needs to be sub-classes for real use.
51 
52 See base/src/TVirtualViewer3D for description of common external 3D
53 viewer architecture and how external viewer clients use it.
54 */
55 
57 
58 ////////////////////////////////////////////////////////////////////////////////
59 /// Construct a physical shape using arguments:
60 /// - ID - unique drawable id.
61 /// - logicalShape - bound logical shape
62 /// - transform - transform for placement of logical drawing
63 /// - invertedWind - use inverted face polygon winding?
64 /// - rgba - basic four component (RGBA) diffuse color
65 
67  const TGLMatrix & transform, Bool_t invertedWind,
68  const Float_t rgba[4]) :
69  fLogicalShape (&logicalShape),
70  fNextPhysical (0),
71  fFirstPSRef (0),
72  fID (id),
73  fTransform (transform),
74  fManip (kManipAll),
75  fSelected (0),
76  fInvertedWind (invertedWind),
77  fModified (kFALSE),
78  fIsScaleForRnr(kFALSE)
79 {
80  fLogicalShape->AddRef(this);
81  UpdateBoundingBox();
82 
83  // Initialise color
84  InitColor(rgba);
85 }
86 
87 ////////////////////////////////////////////////////////////////////////////////
88 /// Construct a physical shape using arguments:
89 /// - id - unique drawable id.
90 /// - logicalShape - bound logical shape
91 /// - transform - 16 Double_t component transform for placement of logical drawing
92 /// - invertedWind - use inverted face polygon winding?
93 /// - rgba - basic four component (RGBA) diffuse color
94 
96  const Double_t * transform, Bool_t invertedWind,
97  const Float_t rgba[4]) :
98  fLogicalShape (&logicalShape),
99  fNextPhysical (0),
100  fFirstPSRef (0),
101  fID (id),
102  fTransform (transform),
103  fManip (kManipAll),
104  fSelected (0),
105  fInvertedWind (invertedWind),
106  fModified (kFALSE),
107  fIsScaleForRnr(kFALSE)
108 {
109  fLogicalShape->AddRef(this);
110 
111  // Temporary hack - invert the 3x3 part of matrix as TGeo sends this
112  // in opp layout to shear/translation parts. Speak to Andrei about best place
113  // to fix - probably when filling TBuffer3D - should always be OGL convention?
116 
117  // Initialise color
118  InitColor(rgba);
119 }
120 
121 ////////////////////////////////////////////////////////////////////////////////
122 /// Destroy the physical shape.
123 
125 {
126  // If destroyed from the logical shape itself the pointer has already
127  // been cleared.
128  if (fLogicalShape) fLogicalShape->SubRef(this);
129 
130  // Remove all references.
131  while (fFirstPSRef) {
133  }
134 }
135 
136 ////////////////////////////////////////////////////////////////////////////////
137 /// Add reference ref.
138 
140 {
141  assert(ref != 0);
142 
143  ref->fNextPSRef = fFirstPSRef;
144  fFirstPSRef = ref;
145 }
146 
147 ////////////////////////////////////////////////////////////////////////////////
148 /// Remove reference ref.
149 
151 {
152  assert(ref != 0);
153 
154  Bool_t found = kFALSE;
155  if (fFirstPSRef == ref) {
156  fFirstPSRef = ref->fNextPSRef;
157  found = kTRUE;
158  } else {
159  TGLPShapeRef *shp1 = fFirstPSRef, *shp2;
160  while ((shp2 = shp1->fNextPSRef) != 0) {
161  if (shp2 == ref) {
162  shp1->fNextPSRef = shp2->fNextPSRef;
163  found = kTRUE;
164  break;
165  }
166  shp1 = shp2;
167  }
168  }
169  if (found) {
170  ref->fNextPSRef = 0;
171  } else {
172  Error("TGLPhysicalShape::RemoveReference", "Attempt to un-ref an unregistered shape-ref.");
173  }
174 }
175 
176 ////////////////////////////////////////////////////////////////////////////////
177 /// Call this after modifying the physical so that the information
178 /// can be propagated to the object referencing it.
179 
181 {
182  fModified = kTRUE;
183  TGLPShapeRef * ref = fFirstPSRef;
184  while (ref) {
185  ref->PShapeModified();
186  ref = ref->fNextPSRef;
187  }
188 }
189 
190 ////////////////////////////////////////////////////////////////////////////////
191 /// Update our internal bounding box (in global frame).
192 
194 {
197 
199 
200  if (fLogicalShape->GetScene())
202 }
203 
204 ////////////////////////////////////////////////////////////////////////////////
205 /// Initialise the colors, using basic RGBA diffuse material color supplied
206 
208 {
209  // TODO: Make a color class
210  fColor[0] = rgba[0];
211  fColor[1] = rgba[1];
212  fColor[2] = rgba[2];
213  fColor[3] = rgba[3];
214 
215  fColor[4] = fColor[5] = fColor[6] = 0.0f; //ambient
216  fColor[8] = fColor[9] = fColor[10] = 0.7f; //specular
217  fColor[12] = fColor[13] = fColor[14] = 0.0f; //emission
218  fColor[7] = fColor[11] = fColor[15] = 1.0f; //alpha
219  fColor[16] = 60.0f; //shininess
220 }
221 
222 ////////////////////////////////////////////////////////////////////////////////
223 /// Set full color attributes - see OpenGL material documentation
224 /// for full description.
225 /// 0->3 diffuse, 4->7 ambient, 8->11 specular, 12->15 emission, 16 shininess
226 
227 void TGLPhysicalShape::SetColor(const Float_t color[17])
228 {
229  // TODO: Make a color class
230  for (UInt_t i = 0; i < 17; i++) {
231  fColor[i] = color[i];
232  }
233 
234  Modified();
235 }
236 
237 ////////////////////////////////////////////////////////////////////////////////
238 /// Set full color attributes to all physicals sharing the same
239 /// logical with this object.
240 
242 {
244  while (pshp)
245  {
246  pshp->SetColor(color);
247  pshp = pshp->fNextPhysical;
248  }
249 }
250 
251 ////////////////////////////////////////////////////////////////////////////////
252 /// Set color from ROOT color index and transparency [0,100].
253 
255 {
256  for (Int_t i=0; i<4; ++i)
257  fColor[i] = rgba[i];
258  Modified();
259 }
260 
261 ////////////////////////////////////////////////////////////////////////////////
262 /// Set color from RGBA quadruplet.
263 
265 {
266  for (Int_t i=0; i<4; ++i)
267  fColor[i] = rgba[i]/255.0f;
268  Modified();
269 }
270 
271 ////////////////////////////////////////////////////////////////////////////////
272 /// Set color from standard ROOT representation, that is color index
273 /// + transparency in range [0, 100].
274 
276 {
277  if (ci < 0) ci = 1;
278  TColor* c = gROOT->GetColor(ci);
279  if (c) {
280  fColor[0] = c->GetRed();
281  fColor[1] = c->GetGreen();
282  fColor[2] = c->GetBlue();
283  fColor[3] = 1.0f - 0.01*transparency;
284  }
285  Modified();
286 }
287 
288 ////////////////////////////////////////////////////////////////////////////////
289 /// Setup colors - avoid setting things not required
290 /// for current draw flags.
291 
292 void TGLPhysicalShape::SetupGLColors(TGLRnrCtx & rnrCtx, const Float_t* color) const
293 {
294  if (color == 0) color = fColor;
295 
296  switch (rnrCtx.DrawPass()) {
298  {
299  // Wireframe needs basic color only
300  glColor4fv(color);
301  break;
302  }
305  {
306  // Both need material colors
307 
308  // Set back diffuse only for clipping where inner (back) faces
309  // are shown. Don't set shininess or specular as we want
310  // back face to appear as 'flat' as possible as crude visual
311  // approximation to proper capped clipped solid
312  glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, color);
313  glMaterialfv(GL_FRONT, GL_AMBIENT, color + 4);
314  glMaterialfv(GL_FRONT, GL_SPECULAR, color + 8);
315  glMaterialfv(GL_FRONT, GL_EMISSION, color + 12);
316  glMaterialf(GL_FRONT, GL_SHININESS, color[16]);
317  // Some objects use point/line graphics. Material mode disabled.
318  glColor4fv(color);
319  break;
320  }
322  {
323  // Outline also needs grey wireframe but respecting
324  // transparency of main diffuse color.
325  TGLUtil::ColorAlpha(rnrCtx.ColorSet().Outline(), 0.5f*color[3]);
326  break;
327  }
328  default:
329  {
330  assert(kFALSE);
331  }
332  }
333 }
334 
335 ////////////////////////////////////////////////////////////////////////////////
336 /// Draw physical shape, using LOD flags, potential from display list cache
337 
338 void TGLPhysicalShape::Draw(TGLRnrCtx & rnrCtx) const
339 {
340  // Debug tracing
341  if (gDebug > 4) {
342  Info("TGLPhysicalShape::Draw", "this %ld (class %s) LOD %d",
343  (Long_t)this, IsA()->GetName(), rnrCtx.ShapeLOD());
344  }
345 
346  // If LOD is pixel or less can draw pixel(point) directly, skipping
347  // any logical call, caching etc.
348  if (rnrCtx.ShapeLOD() == TGLRnrCtx::kLODPixel)
349  {
350  if (!rnrCtx.IsDrawPassOutlineLine())
351  {
352  glColor4fv(fColor);
353  glBegin(GL_POINTS);
354  glVertex3dv(&fTransform.CArr()[12]);
355  glEnd();
356  }
357  return;
358  }
359 
360  if (gDebug > 4) {
361  Info("TGLPhysicalShape::Draw", "this %ld (class %s) LOD %d",
362  (Long_t)this, IsA()->GetName(), rnrCtx.ShapeLOD());
363  }
364 
365  glPushMatrix();
366  glMultMatrixd(fTransform.CArr());
367  if (fIsScaleForRnr) glEnable(GL_NORMALIZE);
368  if (fInvertedWind) glFrontFace(GL_CW);
369  if (rnrCtx.Highlight())
370  {
371  glPushAttrib(GL_LIGHTING_BIT | GL_DEPTH_BUFFER_BIT);
372 
373  glDisable(GL_LIGHTING);
374  glDisable(GL_DEPTH_TEST);
375 
376  if (rnrCtx.HighlightOutline())
377  {
378  static const Int_t offsets[20][2] =
379  { {-1,-1}, { 1,-1}, { 1, 1}, {-1, 1},
380  { 1, 0}, { 0, 1}, {-1, 0}, { 0,-1},
381  { 0,-2}, { 2, 0}, { 0, 2}, {-2, 0},
382  {-2,-2}, { 2,-2}, { 2, 2}, {-2, 2},
383  { 0,-3}, { 3, 0}, { 0, 3}, {-3, 0} };
384  static const Int_t max_off =
385  TGLUtil::GetScreenScalingFactor() > 1.5 ? 20 : 12;
386 
387  const TGLRect& vp = rnrCtx.RefCamera().RefViewport();
388 
389  for (int i = 0; i < max_off; ++i)
390  {
391  glViewport(vp.X() + offsets[i][0], vp.Y() + offsets[i][1], vp.Width(), vp.Height());
392  fLogicalShape->DrawHighlight(rnrCtx, this);
393  }
394 
395  glViewport(vp.X(), vp.Y(), vp.Width(), vp.Height());
396  }
397  else
398  {
399  fLogicalShape->DrawHighlight(rnrCtx, this);
400  }
401 
402  glPopAttrib();
403  }
404  else
405  {
406  SetupGLColors(rnrCtx);
407  if (rnrCtx.IsDrawPassOutlineLine())
409  fLogicalShape->Draw(rnrCtx);
410  if (rnrCtx.IsDrawPassOutlineLine())
412  }
413  if (fInvertedWind) glFrontFace(GL_CCW);
414  if (fIsScaleForRnr) glDisable(GL_NORMALIZE);
415  glPopMatrix();
416 }
417 
418 ////////////////////////////////////////////////////////////////////////////////
419 /// Calculate shape-lod, suitable for use under
420 /// projection defined by 'rnrCtx', taking account of which local
421 /// axes of the shape support LOD adjustment, and the global
422 /// 'sceneFlags' passed.
423 ///
424 /// Returned shapeLOD component is from 0 (kLODPixel - lowest
425 /// quality) to 100 (kLODHigh - highest quality).
426 ///
427 /// Scene flags are not used. LOD quantization is not done. RnrCtx
428 /// is not modified as this is called via lodification stage of
429 /// rendering.
430 
431 void TGLPhysicalShape::CalculateShapeLOD(TGLRnrCtx& rnrCtx, Float_t& pixSize, Short_t& shapeLOD) const
432 {
434 
435  if (lodAxes == TGLLogicalShape::kLODAxesNone)
436  { // Shape doesn't support LOD along any axes return special
437  // unsupported LOD draw/cache flag.
438  // TODO: Still ... could check for kLODPixel when very small,
439  // by using diagonal from bounding-box and some special camera foo.
440  pixSize = 100; // Make up something / irrelevant.
441  shapeLOD = TGLRnrCtx::kLODHigh;
442  return;
443  }
444 
445  std::vector <Double_t> boxViewportDiags;
446  const TGLBoundingBox & box = BoundingBox();
447  const TGLCamera & camera = rnrCtx.RefCamera();
448 
449  if (lodAxes == TGLLogicalShape::kLODAxesAll) {
450  // Shape supports LOD along all axes - basis LOD hint on diagonal of viewport
451  // projection rect round whole bounding box
452  boxViewportDiags.push_back(camera.ViewportRect(box).Diagonal());
453  } else if (lodAxes == (TGLLogicalShape::kLODAxesY | TGLLogicalShape::kLODAxesZ)) {
454  // Shape supports LOD along Y/Z axes (not X). LOD hint based on longest
455  // diagonal (largest rect) of either of the X axis end faces
456  boxViewportDiags.push_back(camera.ViewportRect(box, TGLBoundingBox::kFaceLowX).Diagonal());
457  boxViewportDiags.push_back(camera.ViewportRect(box, TGLBoundingBox::kFaceHighX).Diagonal());
458  } else if (lodAxes == (TGLLogicalShape::kLODAxesX | TGLLogicalShape::kLODAxesZ)) {
459  // Shape supports LOD along X/Z axes (not Y). See above for Y/Z
460  boxViewportDiags.push_back(camera.ViewportRect(box, TGLBoundingBox::kFaceLowY).Diagonal());
461  boxViewportDiags.push_back(camera.ViewportRect(box, TGLBoundingBox::kFaceHighY).Diagonal());
462  } else if (lodAxes == (TGLLogicalShape::kLODAxesX | TGLLogicalShape::kLODAxesY)) {
463  // Shape supports LOD along X/Y axes (not Z). See above for Y/Z
464  boxViewportDiags.push_back(camera.ViewportRect(box, TGLBoundingBox::kFaceLowZ).Diagonal());
465  boxViewportDiags.push_back(camera.ViewportRect(box, TGLBoundingBox::kFaceHighZ).Diagonal());
466  } else {
467  // Don't bother to implement LOD calc for shapes supporting LOD along single
468  // axis only. Not needed at present + unlikely case - but could be done based
469  // on longest of projection of 4 edges of BBox along LOD axis. However this would
470  // probably be more costly than just using whole BB projection (as for all axes)
471  Error("TGLPhysicalShape::CalcPhysicalLOD", "LOD calculation for single axis not implemented presently");
472  shapeLOD = TGLRnrCtx::kLODMed;
473  return;
474  }
475 
476  // Find largest of the projected diagonals
477  Double_t largestDiagonal = 0.0;
478  for (UInt_t i = 0; i < boxViewportDiags.size(); i++) {
479  if (boxViewportDiags[i] > largestDiagonal) {
480  largestDiagonal = boxViewportDiags[i];
481  }
482  }
483  pixSize = largestDiagonal;
484 
485  if (largestDiagonal <= 1.0) {
486  shapeLOD = TGLRnrCtx::kLODPixel;
487  } else {
488  // TODO: Get real screen size - assuming 2000 pixel screen at present
489  // Calculate a non-linear sizing hint for this shape based on diagonal.
490  // Needs more experimenting with...
491  UInt_t lodApp = static_cast<UInt_t>(std::pow(largestDiagonal,0.4) * 100.0 / std::pow(2000.0,0.4));
492  if (lodApp > 1000) lodApp = 1000;
493  shapeLOD = (Short_t) lodApp;
494  }
495 }
496 
497 ////////////////////////////////////////////////////////////////////////////////
498 /// Factor in scene/vierer LOD and Quantize ... forward to
499 /// logical shape.
500 
501 void TGLPhysicalShape::QuantizeShapeLOD(Short_t shapeLOD, Short_t combiLOD, Short_t& quantLOD) const
502 {
503  quantLOD = fLogicalShape->QuantizeShapeLOD(shapeLOD, combiLOD);
504 }
505 
506 ////////////////////////////////////////////////////////////////////////////////
507 /// Request creation of context menu on shape, attached to 'menu' at screen position
508 /// 'x' 'y'
509 
511 {
512  // Just defer to our logical at present
513  fLogicalShape->InvokeContextMenu(menu, x, y);
514 }
std::string GetName(const std::string &scope_name)
Definition: Cppyy.cxx:140
Bool_t Highlight() const
Definition: TGLRnrCtx.h:218
The TGLRnrCtx class aggregates data for a given redering context as needed by various parts of the RO...
Definition: TGLRnrCtx.h:40
void InvokeContextMenu(TContextMenu &menu, UInt_t x, UInt_t y) const
Request creation of context menu on shape, attached to &#39;menu&#39; at screen position &#39;x&#39; &#39;y&#39;...
virtual Short_t QuantizeShapeLOD(Short_t shapeLOD, Short_t combiLOD) const
Logical shapes usually support only discreet LOD values, especially in view of display-list caching...
Abstract base camera class - concrete classes for orthographic and perspective cameras derive from it...
Definition: TGLCamera.h:43
Float_t GetRed() const
Definition: TColor.h:60
void SetColorOnFamily(const Float_t rgba[17])
Set full color attributes to all physicals sharing the same logical with this object.
Int_t X() const
Definition: TGLUtil.h:451
void Set(const TGLVertex3 vertex[8])
Set a bounding box from provided 8 vertices.
float Float_t
Definition: RtypesCore.h:53
return c
16 component (4x4) transform matrix - column MAJOR as per GL.
Definition: TGLUtil.h:600
virtual ~TGLPhysicalShape()
Destroy the physical shape.
TGLCamera & RefCamera()
Definition: TGLRnrCtx.h:157
void SetupGLColors(TGLRnrCtx &rnrCtx, const Float_t *color=0) const
Setup colors - avoid setting things not required for current draw flags.
Bool_t fModified
face winding TODO: can get directly from fTransform?
static Float_t GetScreenScalingFactor()
Returns scaling factor between screen points and GL viewport pixels.
Definition: TGLUtil.cxx:1813
void Transpose3x3()
Transpose the top left 3x3 matrix component along major diagonal Supported as currently incompatibili...
Definition: TGLUtil.cxx:975
#define gROOT
Definition: TROOT.h:364
void UpdateBoundingBox()
cache
int Int_t
Definition: RtypesCore.h:41
bool Bool_t
Definition: RtypesCore.h:59
void AddRef(TGLPhysicalShape *phys) const
Add reference to given physical shape.
const Bool_t kFALSE
Definition: Rtypes.h:92
Int_t Y() const
Definition: TGLUtil.h:453
TGLRect & RefViewport()
Definition: TGLCamera.h:128
void Modified()
Call this after modifying the physical so that the information can be propagated to the object refere...
void box(Int_t pat, Double_t x1, Double_t y1, Double_t x2, Double_t y2)
Definition: fillpatterns.C:1
Bool_t IsDrawPassOutlineLine() const
Definition: TGLRnrCtx.h:207
Float_t GetBlue() const
Definition: TColor.h:62
Bool_t fInvertedWind
selected state
Short_t DrawPass() const
Definition: TGLRnrCtx.h:204
const TGLLogicalShape * fLogicalShape
virtual void QuantizeShapeLOD(Short_t shapeLOD, Short_t combiLOD, Short_t &quantLOD) const
Factor in scene/vierer LOD and Quantize ...
Concrete physical shape - a GL drawable.
void InitColor(const Float_t rgba[4])
Initialise the colors, using basic RGBA diffuse material color supplied.
TGLRect ViewportRect(const TGLBoundingBox &box, TGLBoundingBox::EFace face) const
Calculate viewport rectangle which just contains projection of single &#39;face&#39; of world frame bounding ...
Definition: TGLCamera.cxx:329
TGLBoundingBox fBoundingBox
transform (placement) of physical instance
Double_t x[n]
Definition: legend1.C:17
void SubRef(TGLPhysicalShape *phys) const
Remove reference to given physical shape, potentially deleting this object when hitting zero ref-coun...
void SetColor(const Float_t rgba[17])
Set full color attributes - see OpenGL material documentation for full description.
Float_t GetGreen() const
Definition: TColor.h:61
void Transform(const TGLMatrix &matrix)
Transform all vertices with matrix.
const TGLBoundingBox & BoundingBox() const
double pow(double, double)
void Info(const char *location, const char *msgfmt,...)
Viewport (pixel base) 2D rectangle class.
Definition: TGLUtil.h:426
static UInt_t LockColor()
Prevent further color changes.
Definition: TGLUtil.cxx:1630
static UInt_t UnlockColor()
Allow color changes.
Definition: TGLUtil.cxx:1638
void Error(const char *location, const char *msgfmt,...)
short Color_t
Definition: RtypesCore.h:79
Short_t ShapeLOD() const
Definition: TGLRnrCtx.h:177
const TGLBoundingBox & BoundingBox() const
virtual void DrawHighlight(TGLRnrCtx &rnrCtx, const TGLPhysicalShape *pshp, Int_t lvl=-1) const
Draw the logical shape in highlight mode.
Bool_t HighlightOutline() const
Definition: TGLRnrCtx.h:220
TGLPhysicalShape * fNextPhysical
the associated logical shape
const Double_t * CArr() const
Definition: TGLUtil.h:667
This class provides an interface to context sensitive popup menus.
Definition: TContextMenu.h:44
unsigned int UInt_t
Definition: RtypesCore.h:42
const TGLPhysicalShape * GetFirstPhysical() const
short Short_t
Definition: RtypesCore.h:35
virtual void PShapeModified()
This is called from physical shape when it is modified.
Base class for references to TGLPysicalShape that need to be notified when the shape is destroyed...
Definition: TGLPShapeRef.h:19
void InvalidateBoundingBox()
Definition: TGLSceneBase.h:137
Int_t Diagonal() const
Return the diagonal of the rectangle.
Definition: TGLUtil.cxx:316
Abstract logical shape - a GL &#39;drawable&#39; - base for all shapes - faceset sphere etc.
Int_t Width() const
Definition: TGLUtil.h:455
virtual void Draw(TGLRnrCtx &rnrCtx) const
Draw physical shape, using LOD flags, potential from display list cache.
long Long_t
Definition: RtypesCore.h:50
Bool_t fIsScaleForRnr
has been modified - retain across scene rebuilds
virtual void SetPShape(TGLPhysicalShape *shape)
Set the shape.
#define ClassImp(name)
Definition: Rtypes.h:279
double f(double x)
void AddReference(TGLPShapeRef *ref)
Add reference ref.
double Double_t
Definition: RtypesCore.h:55
TGLPhysicalShape(const TGLPhysicalShape &)
Double_t y[n]
Definition: legend1.C:17
Float_t fColor[17]
bounding box of the physical (transformed)
Bool_t IsScalingForRender() const
Return true if matrix is to be considered a scaling matrix for rendering.
Definition: TGLUtil.cxx:1139
The color creation and management class.
Definition: TColor.h:23
TGLMatrix fTransform
unique physical ID within containing scene
Concrete class describing an orientated (free) or axis aligned box of 8 vertices. ...
virtual void Draw(TGLRnrCtx &rnrCtx) const
Draw the GL drawable, using draw flags.
void InvokeContextMenu(TContextMenu &menu, UInt_t x, UInt_t y) const
Invoke popup menu or our bound external TObject (if any), using passed &#39;menu&#39; object, at location &#39;x&#39; &#39;y&#39;.
virtual ELODAxes SupportedLODAxes() const
void RemoveReference(TGLPShapeRef *ref)
Remove reference ref.
TGLColor & Outline()
Definition: TGLUtil.h:855
R__EXTERN Int_t gDebug
Definition: Rtypes.h:128
unsigned char UChar_t
Definition: RtypesCore.h:34
Int_t Height() const
Definition: TGLUtil.h:457
virtual void CalculateShapeLOD(TGLRnrCtx &rnrCtx, Float_t &pixSize, Short_t &shapeLOD) const
Calculate shape-lod, suitable for use under projection defined by &#39;rnrCtx&#39;, taking account of which l...
TGLColorSet & ColorSet()
Return reference to current color-set (top of the stack).
Definition: TGLRnrCtx.cxx:278
TGLScene * GetScene() const
TGLPShapeRef * fNextPSRef
Definition: TGLPShapeRef.h:26
const Bool_t kTRUE
Definition: Rtypes.h:91
TGLPShapeRef * fFirstPSRef
pointer to next replica
static void ColorAlpha(const TGLColor &color, UChar_t alpha)
Set color from TGLColor and alpha value.
Definition: TGLUtil.cxx:1666
void SetDiffuseColor(const Float_t rgba[4])
Set color from ROOT color index and transparency [0,100].