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VolumeMeshBufferManagerT.cc
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49 
50 #define VOLUMEMESHBUFFERMANAGERT_CC
51 
52 #include "VolumeMeshBufferManager.hh"
53 
54 template <class VolumeMesh>
55 VolumeMeshBufferManager<VolumeMesh>::VolumeMeshBufferManager(const VolumeMesh &mesh_, OpenVolumeMesh::StatusAttrib& statusAttrib_,
56  OpenVolumeMesh::ColorAttrib<ACG::Vec4f>& colorAttrib_,
57  OpenVolumeMesh::NormalAttrib<VolumeMesh>& normalAttrib_,
58  OpenVolumeMesh::TexCoordAttrib<ACG::Vec2f>& texcoordAttrib_)
59  :
60  mDefaultColor(ACG::Vec4f(0.0,0.0,0.0,1.0)),
61  mMesh(mesh_),
62  mStatusAttrib(statusAttrib_),
63  mColorAttrib(colorAttrib_),
64  mNormalAttrib(normalAttrib_),
65  mTexcoordAttrib(texcoordAttrib_),
66  mNumOfVertices(-1),
67  mCurrentNumOfVertices(-1),
68  mVertexSize(0),
69  mVertexDeclaration(),
70  mColorOffset(-1),
71  mNormalOffset(-1),
72  mScale(0.8),
73  mBuffer(0),
74  mCurrentPickOffset(-1),
75  mGlobalPickOffset(0),
76  mInvalidated(true),
77  mGeometryChanged(true),
78  mNormalsChanged(true),
79  mColorsChanged(true),
80  mTexCoordsChanged(true),
81  mDrawModes(),
82  mPrimitiveMode(PM_NONE),
83  mNormalMode(NM_NONE),
84  mColorMode(CM_NO_COLORS),
85  mSkipUnselected(false),
86  mShowIrregularInnerEdges(false),
87  mShowIrregularOuterValence2Edges(false),
88  mSkipRegularEdges(false),
89  mBoundaryOnly(false),
90  mCurrentPrimitiveMode(PM_NONE),
91  mCurrentNormalMode(NM_NONE),
92  mCurrentColorMode(CM_NO_COLORS),
93  mCurrentSkipUnselected(false),
94  mCurrentShowIrregularInnerEdges(false),
95  mCurrentShowIrregularOuterValence2Edges(false),
96  mCurrentSkipRegularEdges(false),
97  mCurrentBoundaryOnly(false),
98  mCurrentVertexSize(0),
99  mCurrentNormalOffset(0),
100  mCurrentColorOffset(0),
101  mCogsValid(false),
102  mCellInsidenessValid(),
103  mTexCoordMode(TCM_NONE),
104  mCurrentTexCoordMode(TCM_NONE),
105  mTexCoordOffset(0),
106  mCurrentTexCoordOffset(0)
107 {
108 
109 }
110 
120 template <class VolumeMesh>
121 void VolumeMeshBufferManager<VolumeMesh>::addFloatToBuffer( float _value, unsigned char *&_buffer )
122 {
123  // get pointer
124  unsigned char *v = (unsigned char *) &_value;
125 
126  // copy over 4 bytes
127  *_buffer++ = *v++;
128  *_buffer++ = *v++;
129  *_buffer++ = *v++;
130  *_buffer++ = *v;
131 }
132 
142 template <class VolumeMesh>
143 void VolumeMeshBufferManager<VolumeMesh>::addUCharToBuffer( unsigned char _value, unsigned char *&_buffer )
144 {
145  *_buffer = _value;
146  ++_buffer;
147 }
148 
159 template <class VolumeMesh>
160 void VolumeMeshBufferManager<VolumeMesh>::addPositionToBuffer(ACG::Vec3d _position, unsigned char* _buffer , unsigned int _offset)
161 {
162  unsigned char* buffer = _buffer + _offset*mVertexSize;
163  addFloatToBuffer(_position[0], buffer);
164  addFloatToBuffer(_position[1], buffer);
165  addFloatToBuffer(_position[2], buffer);
166 }
167 
178 template <class VolumeMesh>
179 void VolumeMeshBufferManager<VolumeMesh>::addColorToBuffer(ACG::Vec4uc _color, unsigned char* _buffer, unsigned int _offset)
180 {
181  unsigned char* buffer = _buffer + _offset*mVertexSize + mColorOffset;
182  addUCharToBuffer(_color[0], buffer);
183  addUCharToBuffer(_color[1], buffer);
184  addUCharToBuffer(_color[2], buffer);
185  addUCharToBuffer(_color[3], buffer);
186 }
187 
200 template <class VolumeMesh>
201 void VolumeMeshBufferManager<VolumeMesh>::addColorToBuffer(ACG::Vec4f _color, unsigned char* _buffer, unsigned int _offset)
202 {
203  unsigned char* buffer = _buffer + _offset*mVertexSize + mColorOffset;
204  addUCharToBuffer(_color[0]*255, buffer);
205  addUCharToBuffer(_color[1]*255, buffer);
206  addUCharToBuffer(_color[2]*255, buffer);
207  addUCharToBuffer(_color[3]*255, buffer);
208 }
209 
220 template <class VolumeMesh>
221 void VolumeMeshBufferManager<VolumeMesh>::addNormalToBuffer(ACG::Vec3d _normal, unsigned char* _buffer, unsigned int _offset)
222 {
223  unsigned char* buffer = _buffer + _offset*mVertexSize + mNormalOffset;
224  addFloatToBuffer(_normal[0], buffer);
225  addFloatToBuffer(_normal[1], buffer);
226  addFloatToBuffer(_normal[2], buffer);
227 }
228 
239 template <class VolumeMesh>
240 void VolumeMeshBufferManager<VolumeMesh>::addTexCoordToBuffer(ACG::Vec2f _texCoord, unsigned char* _buffer, unsigned int _offset)
241 {
242  unsigned char* buffer = _buffer + _offset*mVertexSize + mTexCoordOffset;
243  addFloatToBuffer(_texCoord[0], buffer);
244  addFloatToBuffer(_texCoord[1], buffer);
245 }
246 
247 
255 template <class VolumeMesh>
256 void VolumeMeshBufferManager<VolumeMesh>::calculateVertexDeclaration()
257 {
258  unsigned int currentOffset = 0;
259  mVertexDeclaration.clear();
260 
261  mNormalOffset = -1;
262  mColorOffset = -1;
263 
264  if (mPrimitiveMode != PM_NONE) //should always be the case
265  {
266  mVertexDeclaration.addElement(GL_FLOAT, 3, ACG::VERTEX_USAGE_POSITION, reinterpret_cast<GLuint*>(currentOffset));
267  currentOffset += 3*sizeof(float);
268  }
269 
270  if (mNormalMode != NM_NONE)
271  {
272  mNormalOffset = currentOffset;
273  mVertexDeclaration.addElement(GL_FLOAT, 3, ACG::VERTEX_USAGE_NORMAL, reinterpret_cast<GLuint*>(currentOffset));
274  currentOffset += 3*sizeof(float);
275  }
276 
277  if ((mColorMode != CM_NO_COLORS) || mShowIrregularInnerEdges || mShowIrregularOuterValence2Edges)
278  {
279  mColorOffset = currentOffset;
280  mVertexDeclaration.addElement(GL_UNSIGNED_BYTE, 4, ACG::VERTEX_USAGE_COLOR, reinterpret_cast<GLuint*>(currentOffset));
281  currentOffset += 4*sizeof(char);
282  }
283 
284  if ((mTexCoordMode != TCM_NONE))
285  {
286  mTexCoordOffset = currentOffset;
287  unsigned char numOfCoords = 0;
288  if (mTexCoordMode == TCM_SINGLE_2D)
289  numOfCoords = 2;
290  mVertexDeclaration.addElement(GL_FLOAT, numOfCoords, ACG::VERTEX_USAGE_TEXCOORD, reinterpret_cast<GLuint*>(currentOffset));
291  currentOffset += numOfCoords * sizeof(float);
292  }
293 
294  mVertexSize = currentOffset;
295 }
296 
297 
302 template <class VolumeMesh>
303 unsigned int VolumeMeshBufferManager<VolumeMesh>::getNumOfVertices()
304 {
305  if (mNumOfVertices == -1)
306  countNumOfVertices();
307  return mNumOfVertices;
308 }
309 
317 template <class VolumeMesh>
318 void VolumeMeshBufferManager<VolumeMesh>::setDefaultColor(ACG::Vec4f _defaultColor)
319 {
320  if (mDefaultColor != _defaultColor)
321  {
322  invalidateColors();
323  mDefaultColor = _defaultColor;
324  }
325 }
326 
335 template <class VolumeMesh>
336 void VolumeMeshBufferManager<VolumeMesh>::setOptionsFromDrawMode(ACG::SceneGraph::DrawModes::DrawMode _drawMode)
337 {
338  // colors
339  if (_drawMode & (mDrawModes.cellsColoredPerCell))
340  enablePerCellColors();
341  else if (_drawMode & (mDrawModes.cellsColoredPerFace | mDrawModes.facesColoredPerFace))
342  enablePerFaceColors();
343  else if (_drawMode & (mDrawModes.cellsColoredPerHalfface | mDrawModes.halffacesColoredPerHalfface))
344  enablePerHalffaceColors();
345  else if (_drawMode & ( mDrawModes.edgesColoredPerEdge ))
346  enablePerEdgeColors();
347  else if (_drawMode & (mDrawModes.halfedgesColoredPerHalfedge))
348  enablePerHalfedgeColors();
349  else if (_drawMode & (mDrawModes.cellsColoredPerVertex | mDrawModes.facesColoredPerVertex |
350  mDrawModes.halffacesColoredPerVertex | mDrawModes.edgesColoredPerEdge |
351  mDrawModes.verticesColored))
352  enablePerVertexColors();
353  else
354  disableColors();
355 
356  //normals
357  if (_drawMode & (mDrawModes.cellsFlatShaded | mDrawModes.halffacesFlatShaded))
358  enablePerHalffaceNormals();
359  else if (_drawMode & (mDrawModes.facesFlatShaded | mDrawModes.facesTexturedShaded))
360  enablePerFaceNormals();
361  else if (_drawMode & (mDrawModes.cellsSmoothShaded | mDrawModes.facesSmoothShaded | mDrawModes.halffacesSmoothShaded |
362  mDrawModes.cellsPhongShaded | mDrawModes.facesPhongShaded | mDrawModes.halffacesPhongShaded))
363  enablePerVertexNormals();
364  else
365  disableNormals();
366 
367  if (_drawMode & (mDrawModes.irregularInnerEdges))
368  mShowIrregularInnerEdges = true;
369  else
370  mShowIrregularInnerEdges = false;
371 
372  if (_drawMode & (mDrawModes.irregularOuterEdges))
373  mShowIrregularOuterValence2Edges = true;
374  else
375  mShowIrregularOuterValence2Edges = false;
376 
377  if (!mShowIrregularInnerEdges && !mShowIrregularOuterValence2Edges)
378  mSkipRegularEdges = false;
379  else
380  mSkipRegularEdges = true;
381 
382 
383  // textures
384  if (_drawMode & (mDrawModes.facesTextured | mDrawModes.facesTexturedShaded))
385  mTexCoordMode = TCM_SINGLE_2D;
386  else
387  mTexCoordMode = TCM_NONE;
388 
389  // primiive mode
390  if (_drawMode & (mDrawModes.cellBasedDrawModes))
391  mPrimitiveMode = PM_CELLS;
392  else if (_drawMode & (mDrawModes.facesOnCells))
393  mPrimitiveMode = PM_FACES_ON_CELLS;
394  else if (_drawMode & (mDrawModes.faceBasedDrawModes | mDrawModes.hiddenLineBackgroundFaces))
395  mPrimitiveMode = PM_FACES;
396  else if (_drawMode & (mDrawModes.halffaceBasedDrawModes))
397  mPrimitiveMode = PM_HALFFACES;
398  else if (_drawMode & (mDrawModes.edgesOnCells))
399  mPrimitiveMode = PM_EDGES_ON_CELLS;
400  else if (_drawMode & ((mDrawModes.edgeBasedDrawModes) & ~(mDrawModes.irregularInnerEdges | mDrawModes.irregularOuterEdges)))
401  mPrimitiveMode = PM_EDGES;
402  else if (_drawMode & (mDrawModes.irregularInnerEdges | mDrawModes.irregularOuterEdges)) // note: this has to be checked after _drawMode & (mDrawModes.edgeBasedDrawModes)
403  mPrimitiveMode = PM_IRREGULAR_EDGES; // if this is true, irregular edges are already included
404  else if (_drawMode & (mDrawModes.halfedgeBasedDrawModes))
405  mPrimitiveMode = PM_HALFEDGES;
406  else if (_drawMode & (mDrawModes.verticesOnCells))
407  mPrimitiveMode = PM_VERTICES_ON_CELLS;
408  else if (_drawMode & (mDrawModes.vertexBasedDrawModes))
409  mPrimitiveMode = PM_VERTICES;
410  else
411  mPrimitiveMode = PM_NONE;
412 
413 
414 }
415 
416 
423 template <class VolumeMesh>
424 void VolumeMeshBufferManager<VolumeMesh>::clearCutPlanes()
425 {
426  cut_planes_.clear();
427  invalidateGeometry();
428  mCellInsidenessValid = false;
429 }
430 
438 template <class VolumeMesh>
439 void VolumeMeshBufferManager<VolumeMesh>::addCutPlane(const typename VolumeMeshBufferManager<VolumeMesh>::Plane& _p)
440 {
441  cut_planes_.push_back(_p);
442  invalidateGeometry();
443  mCellInsidenessValid = false;
444 }
445 
456 template <class VolumeMesh>
457 void VolumeMeshBufferManager<VolumeMesh>::addCutPlane(const ACG::Vec3d &_p, const ACG::Vec3d &_n, const ACG::Vec3d &_xsize, const ACG::Vec3d &_ysize)
458 {
459  addCutPlane(Plane(_p, _n, _xsize, _ysize));
460 }
461 
469 template <class VolumeMesh>
470 bool VolumeMeshBufferManager<VolumeMesh>::is_inside(const ACG::Vec3d& _p)
471 {
472  for(typename std::vector<Plane>::iterator it = cut_planes_.begin(); it != cut_planes_.end(); ++it) {
473  // get local position
474  ACG::Vec3d pl = _p - it->position;
475  // evaluate dot products
476  double pn = (pl | it->normal);
477  double px = (pl | it->xdirection);
478  double py = (pl | it->ydirection);
479 
480  if (pn < 0.0 && px > -0.5 && px < 0.5 && py > -0.5 && py < 0.5)
481  return false;
482  }
483 
484  return true;
485 }
486 
496 template <class VolumeMesh>
497 bool VolumeMeshBufferManager<VolumeMesh>::is_inside(const VertexHandle& _vh)
498 {
499  if ( cut_planes_.empty() ) return true;
500  return is_inside(mMesh.vertex(_vh));
501 }
502 
512 template <class VolumeMesh>
513 bool VolumeMeshBufferManager<VolumeMesh>::is_inside(const HalfEdgeHandle& _heh)
514 {
515  if ( cut_planes_.empty() ) return true;
516  Edge e(mMesh.halfedge(_heh));
517  return is_inside(mMesh.vertex(e.from_vertex())) && is_inside(mMesh.vertex(e.to_vertex()));
518 }
519 
529 template <class VolumeMesh>
530 bool VolumeMeshBufferManager<VolumeMesh>::is_inside(const EdgeHandle& _eh)
531 {
532  if ( cut_planes_.empty() ) return true;
533  Edge e(mMesh.edge(_eh));
534  return is_inside(mMesh.vertex(e.from_vertex())) && is_inside(mMesh.vertex(e.to_vertex()));
535 }
536 
546 template <class VolumeMesh>
547 bool VolumeMeshBufferManager<VolumeMesh>::is_inside(const HalfFaceHandle& _hfh)
548 {
549  if ( cut_planes_.empty() ) return true;
550  for (OpenVolumeMesh::HalfFaceVertexIter hfv_it = mMesh.hfv_iter(_hfh); hfv_it; ++hfv_it)
551  if (!is_inside(*hfv_it)) return false;
552 
553  return true;
554 }
555 
565 template <class VolumeMesh>
566 bool VolumeMeshBufferManager<VolumeMesh>::is_inside(const FaceHandle& _fh)
567 {
568  if ( cut_planes_.empty() ) return true;
569  return is_inside(mMesh.halfface_handle(_fh,0));
570 }
571 
583 template <class VolumeMesh>
584 bool VolumeMeshBufferManager<VolumeMesh>::is_inside(const CellHandle& _ch)
585 {
586  if (!mCellInsidenessValid)
587  calculateCellInsideness();
588 
589  return mCellInsideness[_ch.idx()];
590 }
591 
592 
599 template <class VolumeMesh>
600 void VolumeMeshBufferManager<VolumeMesh>::calculateCellInsideness()
601 {
602  if (mCellInsideness.size() != mMesh.n_cells())
603  mCellInsideness.resize(mMesh.n_cells());
604 
605  for (unsigned int i = 0; i < mMesh.n_cells(); i++)
606  {
607  CellHandle ch = CellHandle(i);
608  bool inside;
609  ACG::Vec3d cog = getCOG(ch);
610  if ( cut_planes_.empty() )
611  inside = true;
612  else
613  {
614  inside = true;
615  for (OpenVolumeMesh::CellVertexIter cv_it = mMesh.cv_iter(ch); cv_it; ++cv_it)
616  {
617  ACG::Vec3d vertexPos = mScale * mMesh.vertex(*cv_it) + (1-mScale) * cog;
618  if (!is_inside(vertexPos)) inside = false;
619  }
620  }
621  mCellInsideness[i] = inside;
622  }
623 
624  mCellInsidenessValid = true;
625 }
626 
627 
635 template <class VolumeMesh>
636 bool VolumeMeshBufferManager<VolumeMesh>::optionsChanged()
637 {
638  return mCurrentPrimitiveMode != mPrimitiveMode ||
639  mCurrentNormalMode != mNormalMode ||
640  mCurrentColorMode != mColorMode ||
641  mCurrentSkipUnselected != mSkipUnselected ||
642  mCurrentShowIrregularInnerEdges != mShowIrregularInnerEdges ||
643  mCurrentShowIrregularOuterValence2Edges != mShowIrregularOuterValence2Edges ||
644  mCurrentSkipRegularEdges != mSkipRegularEdges ||
645  mCurrentBoundaryOnly != mBoundaryOnly;
646 }
647 
653 template <class VolumeMesh>
654 void VolumeMeshBufferManager<VolumeMesh>::saveOptions()
655 {
656  mCurrentPrimitiveMode = mPrimitiveMode;
657  mCurrentNormalMode = mNormalMode;
658  mCurrentColorMode = mColorMode;
659  mCurrentSkipUnselected = mSkipUnselected;
660  mCurrentShowIrregularInnerEdges = mShowIrregularInnerEdges;
661  mCurrentShowIrregularOuterValence2Edges = mShowIrregularOuterValence2Edges;
662  mCurrentSkipRegularEdges = mSkipRegularEdges;
663  mCurrentBoundaryOnly = mBoundaryOnly;
664  mCurrentVertexSize = mVertexSize;
665  mCurrentNormalOffset = mNormalOffset;
666  mCurrentColorOffset = mColorOffset;
667  mCurrentNumOfVertices = mNumOfVertices;
668 }
669 
670 
679 template <class VolumeMesh>
680 ACG::Vec4f VolumeMeshBufferManager<VolumeMesh>::getValenceColorCode(unsigned int _valence, bool _inner) const {
681 
682  if(_inner && _valence == 3) {
683  return ACG::Vec4f(0.0f, 1.0f, 1.0f, 1.0f);
684  } else if(_inner && _valence == 5) {
685  return ACG::Vec4f(1.0f, 0.0f, 1.0f, 1.0f);
686  } else if(!_inner && _valence > 3) {
687  return ACG::Vec4f(0.0f, 1.0f, 0.0f, 1.0f);
688  } else if(!_inner && _valence == 2) {
689  return ACG::Vec4f(1.0f, 1.0f, 0.0f, 1.0f);
690  } else if(_inner && _valence > 5) {
691  return ACG::Vec4f(0.5f, 1.0f, 0.5f, 1.0f);
692  }
693  return ACG::Vec4f(0.0f, 0.0f, 0.0f, 1.0f);
694 }
695 
701 template <class VolumeMesh>
702 void VolumeMeshBufferManager<VolumeMesh>::countNumOfVertices()
703 {
704  unsigned int numOfVertices = 0;
705 
706  if (mSkipUnselected) //only count selected
707  {
708  if (mPrimitiveMode == PM_CELLS)
709  {
710  OpenVolumeMesh::CellIter c_begin(mMesh.cells_begin()), c_end(mMesh.cells_end());
711  for (OpenVolumeMesh::CellIter c_it = c_begin; c_it != c_end; ++c_it)
712  if (mStatusAttrib[*c_it].selected() && is_inside(*c_it))
713  {
714  std::vector<HalfFaceHandle> hfs = mMesh.cell(*c_it).halffaces();
715  for (unsigned int i = 0; i < hfs.size(); ++i)
716  numOfVertices += ((mMesh.valence(mMesh.face_handle(hfs[i])))-2)*3;
717  }
718  }
719  else if (mPrimitiveMode == PM_FACES)
720  {
721  OpenVolumeMesh::FaceIter f_begin(mMesh.faces_begin()), f_end(mMesh.faces_end());
722  for (OpenVolumeMesh::FaceIter f_it = f_begin; f_it != f_end; ++f_it)
723  if (mStatusAttrib[*f_it].selected() && is_inside(*f_it) && (!mBoundaryOnly || mMesh.is_boundary(*f_it)))
724  numOfVertices += ((mMesh.valence(*f_it))-2)*3; //additional vertices are added for faces with more than 3 adjacent vertices
725  }
726  else if (mPrimitiveMode == PM_FACES_ON_CELLS)
727  {
728  OpenVolumeMesh::FaceIter f_begin(mMesh.faces_begin()), f_end(mMesh.faces_end());
729  for (OpenVolumeMesh::FaceIter f_it = f_begin; f_it != f_end; ++f_it)
730  if (mStatusAttrib[*f_it].selected())
731  numOfVertices += ((mMesh.valence(*f_it))-2)*3*getNumOfIncidentCells(*f_it); //additional vertices are added for faces with more than 3 adjacent vertices
732  }
733  else if (mPrimitiveMode == PM_HALFFACES)
734  {
735  OpenVolumeMesh::HalfFaceIter hf_begin(mMesh.halffaces_begin()), hf_end(mMesh.halffaces_end());
736  for (OpenVolumeMesh::HalfFaceIter hf_it = hf_begin; hf_it != hf_end; ++hf_it)
737  if (mStatusAttrib[*hf_it].selected() && is_inside(*hf_it) && (!mBoundaryOnly || mMesh.is_boundary(*hf_it)))
738  numOfVertices += ((mMesh.valence(mMesh.face_handle(*hf_it)))-2)*3; //additional vertices are added for faces with more than 3 adjacent vertices
739  }
740  else if (mPrimitiveMode == PM_EDGES)
741  {
742  OpenVolumeMesh::EdgeIter e_begin(mMesh.edges_begin()), e_end(mMesh.edges_end());
743  for (OpenVolumeMesh::EdgeIter e_it = e_begin; e_it != e_end; ++e_it)
744  if (mStatusAttrib[*e_it].selected() && is_inside(*e_it) && (!mBoundaryOnly || mMesh.is_boundary(*e_it)))
745  numOfVertices += 2;
746  }
747  else if (mPrimitiveMode == PM_EDGES_ON_CELLS)
748  {
749  OpenVolumeMesh::EdgeIter e_begin(mMesh.edges_begin()), e_end(mMesh.edges_end());
750  for (OpenVolumeMesh::EdgeIter e_it = e_begin; e_it != e_end; ++e_it)
751  if (mStatusAttrib[*e_it].selected())
752  numOfVertices += 2*getNumOfIncidentCells(*e_it);
753  }
754  else if (mPrimitiveMode == PM_HALFEDGES)
755  {
756  OpenVolumeMesh::HalfEdgeIter he_begin(mMesh.halfedges_begin()), he_end(mMesh.halfedges_end());
757  for (OpenVolumeMesh::HalfEdgeIter he_it = he_begin; he_it != he_end; ++he_it)
758  if (mStatusAttrib[*he_it].selected() && is_inside(*he_it) && (!mBoundaryOnly || mMesh.is_boundary(*he_it)))
759  numOfVertices += 2;
760  }
761  else if (mPrimitiveMode == PM_VERTICES)
762  {
763  OpenVolumeMesh::VertexIter v_begin(mMesh.vertices_begin()), v_end(mMesh.vertices_end());
764  for (OpenVolumeMesh::VertexIter v_it = v_begin; v_it != v_end; ++v_it)
765  if (mStatusAttrib[*v_it].selected() && is_inside(*v_it) && (!mBoundaryOnly || mMesh.is_boundary(*v_it)))
766  numOfVertices += 1;
767  }
768  else if (mPrimitiveMode == PM_VERTICES_ON_CELLS)
769  {
770  OpenVolumeMesh::VertexIter v_begin(mMesh.vertices_begin()), v_end(mMesh.vertices_end());
771  for (OpenVolumeMesh::VertexIter v_it = v_begin; v_it != v_end; ++v_it)
772  if (mStatusAttrib[*v_it].selected())
773  numOfVertices += getNumOfIncidentCells(*v_it);
774  }
775  }
776  else
777  {
778  if (mPrimitiveMode == PM_VERTICES_ON_CELLS)
779  {
780  for (unsigned int i = 0; i < mMesh.n_vertices(); i++)
781  numOfVertices += getNumOfIncidentCells(VertexHandle(i));
782  }
783  else if (mPrimitiveMode == PM_VERTICES)
784  {
785  for (unsigned int i = 0; i < mMesh.n_vertices(); i++)
786  if (is_inside(VertexHandle(i)) && (!mBoundaryOnly || mMesh.is_boundary(VertexHandle(i))))
787  numOfVertices += 1;
788  }
789  else if (mPrimitiveMode == PM_FACES)
790  {
791  OpenVolumeMesh::FaceIter f_begin(mMesh.faces_begin()), f_end(mMesh.faces_end());
792  for (OpenVolumeMesh::FaceIter f_it = f_begin; f_it != f_end; ++f_it)
793  if (is_inside(*f_it) && (!mBoundaryOnly || mMesh.is_boundary(*f_it)))
794  numOfVertices += ((mMesh.valence(*f_it))-2)*3; //additional vertices are added for faces with more than 3 adjacent vertices
795  }
796  else if (mPrimitiveMode == PM_FACES_ON_CELLS)
797  {
798  OpenVolumeMesh::FaceIter f_begin(mMesh.faces_begin()), f_end(mMesh.faces_end());
799  for (OpenVolumeMesh::FaceIter f_it = f_begin; f_it != f_end; ++f_it)
800  numOfVertices += ((mMesh.valence(*f_it))-2)*3*getNumOfIncidentCells(*f_it); //additional vertices are added for faces with more than 3 adjacent vertices
801  }
802  else if (mPrimitiveMode == PM_HALFFACES)
803  {
804  OpenVolumeMesh::HalfFaceIter hf_begin(mMesh.halffaces_begin()), hf_end(mMesh.halffaces_end());
805  for (OpenVolumeMesh::HalfFaceIter hf_it = hf_begin; hf_it != hf_end; ++hf_it)
806  if (is_inside(*hf_it) && (!mBoundaryOnly || mMesh.is_boundary(*hf_it)))
807  numOfVertices += ((mMesh.valence(mMesh.face_handle(*hf_it)))-2)*3; //additional vertices are added for faces with more than 3 adjacent vertices
808  }
809  else if (mPrimitiveMode == PM_CELLS)
810  {
811  OpenVolumeMesh::CellIter c_begin(mMesh.cells_begin()), c_end(mMesh.cells_end());
812  for (OpenVolumeMesh::CellIter c_it = c_begin; c_it != c_end; ++c_it)
813  {
814  if (is_inside(*c_it))
815  {
816  std::vector<HalfFaceHandle> hfs = mMesh.cell(*c_it).halffaces();
817  for (unsigned int i = 0; i < hfs.size(); ++i)
818  numOfVertices += ((mMesh.valence(mMesh.face_handle(hfs[i])))-2)*3;
819  }
820  }
821  }
822  else if (mPrimitiveMode == PM_EDGES_ON_CELLS)
823  {
824  for (OpenVolumeMesh::EdgeIter e_it = mMesh.edges_begin(); e_it != mMesh.edges_end(); ++e_it)
825  numOfVertices += 2*getNumOfIncidentCells(*e_it);
826  }
827  else if ( mPrimitiveMode == PM_EDGES ) //all edges are drawn, so irregular ones are already included
828  {
829  for (OpenVolumeMesh::EdgeIter e_it = mMesh.edges_begin(); e_it != mMesh.edges_end(); ++e_it)
830  if (is_inside(*e_it) && (!mBoundaryOnly || mMesh.is_boundary(*e_it)))
831  numOfVertices += 2;
832  }
833  else if ( mPrimitiveMode == PM_IRREGULAR_EDGES )
834  {
835  for (OpenVolumeMesh::EdgeIter e_it = mMesh.edges_begin(); e_it != mMesh.edges_end(); ++e_it)
836  if (is_inside(*e_it) && (!mBoundaryOnly || mMesh.is_boundary(*e_it)))
837  {
838  bool boundary = mMesh.is_boundary(*e_it);
839  unsigned int valence = mMesh.valence(*e_it);
840 
841  // Skip regular edges
842  if(( boundary && valence == 3) || (!boundary && valence == 4)) continue;
843  //skip boundary valence 2 edges if not drawn
844  if ((!(mShowIrregularOuterValence2Edges)) && ( boundary && valence == 2)) continue;
845  //skip irregular inner edges if not drawn
846  if ((!(mShowIrregularInnerEdges)) && (( !boundary && valence != 4) ||
847  ( boundary && valence < 2) ||
848  ( boundary && valence > 3))) continue;
849 
850  numOfVertices += 2;
851  }
852  }
853  else if ( mPrimitiveMode == PM_HALFEDGES )
854  {
855  for (OpenVolumeMesh::HalfEdgeIter he_it = mMesh.halfedges_begin(); he_it != mMesh.halfedges_end(); ++he_it)
856  if (is_inside(*he_it) && (!mBoundaryOnly || mMesh.is_boundary(*he_it)))
857  numOfVertices += 2;
858  }
859  else /*if ( mPrimitiveMode == PM_NONE)*/
860  {
861  numOfVertices = 0;
862  }
863  }
864 
865  mNumOfVertices = numOfVertices;
866 }
867 
875 template <class VolumeMesh>
876 int VolumeMeshBufferManager<VolumeMesh>::getNumOfIncidentCells(OpenVolumeMesh::FaceHandle _fh)
877 {
878  int incidentCells = 0;
879  OpenVolumeMesh::HalfFaceHandle hf0 = mMesh.halfface_handle(_fh, 0);
880  if (mMesh.incident_cell(hf0) != CellHandle(-1))
881  if (is_inside(mMesh.incident_cell(hf0)))
882  incidentCells += 1;
883  OpenVolumeMesh::HalfFaceHandle hf1 = mMesh.halfface_handle(_fh, 1);
884  if (mMesh.incident_cell(hf1) != CellHandle(-1))
885  if (is_inside(mMesh.incident_cell(hf1)))
886  incidentCells += 1;
887  return incidentCells;
888 }
889 
897 template <class VolumeMesh>
898 int VolumeMeshBufferManager<VolumeMesh>::getNumOfIncidentCells(OpenVolumeMesh::EdgeHandle _eh)
899 {
900  int incidentCells = 0;
901  OpenVolumeMesh::HalfEdgeHandle heh = mMesh.halfedge_handle(_eh, 0);
902  for (OpenVolumeMesh::HalfEdgeCellIter hec_it = OpenVolumeMesh::HalfEdgeCellIter(heh,&mMesh); hec_it.valid(); ++hec_it)
903  if (hec_it->idx() != -1)
904  if (is_inside(*hec_it))
905  incidentCells++;
906  return incidentCells;
907 }
908 
916 template <class VolumeMesh>
917 int VolumeMeshBufferManager<VolumeMesh>::getNumOfIncidentCells(OpenVolumeMesh::VertexHandle _vh)
918 {
919  int incidentCells = 0;
920  for (OpenVolumeMesh::VertexCellIter vc_it = OpenVolumeMesh::VertexCellIter(_vh,&mMesh); vc_it; ++vc_it)
921  if (vc_it->idx() != -1)
922  if (is_inside(*vc_it))
923  incidentCells++;
924  return incidentCells;
925 }
926 
934 template <class VolumeMesh>
935 ACG::Vec3d VolumeMeshBufferManager<VolumeMesh>::getCOG(OpenVolumeMesh::CellHandle _ch)
936 {
937  if (!mCogsValid)
938  calculateCOGs();
939 
940  return mCogs[_ch.idx()];
941 }
942 
950 template <class VolumeMesh>
951 void VolumeMeshBufferManager<VolumeMesh>::calculateCOGs()
952 {
953  if (mCogs.size() != mMesh.n_cells())
954  mCogs.resize(mMesh.n_cells());
955 
956  OpenVolumeMesh::CellIter c_begin(mMesh.cells_begin()), c_end(mMesh.cells_end());
957  for (OpenVolumeMesh::CellIter c_it = c_begin; c_it != c_end; ++c_it)
958  {
959 
960  std::vector<HalfFaceHandle> hfs = mMesh.cell(*c_it).halffaces();
961  ACG::Vec3d cog = ACG::Vec3d(0.0f);
962  int count = 0;
963  for (unsigned int i = 0; i < hfs.size(); ++i)
964  for (OpenVolumeMesh::HalfFaceVertexIter hfv_it = mMesh.hfv_iter(hfs[i]); hfv_it; ++hfv_it)
965  {
966  cog += mMesh.vertex(*hfv_it);
967  count += 1;
968  }
969  cog = 1.0/count * cog;
970 
971  mCogs[c_it->idx()] = cog;
972  }
973 
974  mCogsValid = true;
975 }
976 
982 template <class VolumeMesh>
983 bool VolumeMeshBufferManager<VolumeMesh>::positionsNeedRebuild()
984 {
985  return (mGeometryChanged) ||
986  (mVertexSize != mCurrentVertexSize) ||
987  (mPrimitiveMode != mCurrentPrimitiveMode) ||
988  (mNumOfVertices != mCurrentNumOfVertices);
989 }
990 
996 template <class VolumeMesh>
997 bool VolumeMeshBufferManager<VolumeMesh>::colorsNeedRebuild()
998 {
999  return (mColorsChanged) ||
1000  (mVertexSize != mCurrentVertexSize) ||
1001  (mNumOfVertices != mCurrentNumOfVertices) ||
1002  (mPrimitiveMode != mCurrentPrimitiveMode) ||
1003  (mColorOffset != mCurrentColorOffset) ||
1004  (mColorMode != mCurrentColorMode) ||
1005  (mShowIrregularInnerEdges != mCurrentShowIrregularInnerEdges) ||
1006  (mShowIrregularOuterValence2Edges != mCurrentShowIrregularOuterValence2Edges);
1007 }
1008 
1014 template <class VolumeMesh>
1015 bool VolumeMeshBufferManager<VolumeMesh>::texCoordsNeedRebuild()
1016 {
1017  return (mTexCoordsChanged) ||
1018  (mVertexSize != mCurrentVertexSize) ||
1019  (mNumOfVertices != mCurrentNumOfVertices) ||
1020  (mPrimitiveMode != mCurrentPrimitiveMode) ||
1021  (mTexCoordOffset!= mCurrentTexCoordOffset);
1022 }
1023 
1029 template <class VolumeMesh>
1030 bool VolumeMeshBufferManager<VolumeMesh>::normalsNeedRebuild()
1031 {
1032  return (mNormalsChanged) ||
1033  (mVertexSize != mCurrentVertexSize) ||
1034  (mPrimitiveMode != mCurrentPrimitiveMode) ||
1035  (mNormalOffset != mCurrentNormalOffset) ||
1036  (mNormalMode != mCurrentNormalMode) ||
1037  (mNumOfVertices != mCurrentNumOfVertices);
1038 }
1039 
1045 template <class VolumeMesh>
1046 void VolumeMeshBufferManager<VolumeMesh>::buildVertexBuffer(unsigned char* _buffer)
1047 {
1048  unsigned int pos = 0;
1049 
1050  if (mPrimitiveMode == PM_VERTICES)
1051  {
1052  for (unsigned int i = 0; i < mMesh.n_vertices(); ++i) {
1053  if (mSkipUnselected && !mStatusAttrib[VertexHandle(i)].selected()) continue;
1054  if (!is_inside(VertexHandle(i))) continue;
1055  if (mBoundaryOnly && !mMesh.is_boundary(VertexHandle(i))) continue;
1056  ACG::Vec3d p = mMesh.vertex(VertexHandle(i));
1057  addPositionToBuffer(p, _buffer, pos++);
1058  }
1059  }
1060  else if (mPrimitiveMode == PM_VERTICES_ON_CELLS)
1061  {
1062  for (unsigned int i = 0; i < mMesh.n_vertices(); ++i) {
1063  if (mSkipUnselected && !mStatusAttrib[VertexHandle(i)].selected()) continue;
1064  ACG::Vec3d p = mMesh.vertex(VertexHandle(i));
1065  for (OpenVolumeMesh::VertexCellIter vc_it = OpenVolumeMesh::VertexCellIter(VertexHandle(i),&mMesh); vc_it; ++vc_it)
1066  {
1067  ACG::Vec3d cog = getCOG(*vc_it);
1068  //ACG::Vec3d newPos = p*mScale + cog*(1-mScale);
1069  if (is_inside(*vc_it))
1070  addPositionToBuffer(p*mScale + cog*(1-mScale), _buffer, pos++);
1071  }
1072  }
1073  }
1074  else if (mPrimitiveMode == PM_FACES)
1075  {
1076  std::vector<ACG::Vec3d> vertices;
1077  OpenVolumeMesh::FaceIter f_begin(mMesh.faces_begin()), f_end(mMesh.faces_end());
1078  for (OpenVolumeMesh::FaceIter f_it = f_begin; f_it != f_end; ++f_it)
1079  {
1080  if (mSkipUnselected && !mStatusAttrib[*f_it].selected()) continue;
1081  if (mBoundaryOnly && !mMesh.is_boundary(*f_it)) continue;
1082  if (!is_inside(*f_it)) continue;
1083  vertices.clear();
1084  for (OpenVolumeMesh::HalfFaceVertexIter hfv_it = mMesh.hfv_iter(mMesh.halfface_handle(*f_it,0)); hfv_it; ++hfv_it)
1085  vertices.push_back(mMesh.vertex(*hfv_it));
1086 
1087  for (unsigned int i = 0; i < vertices.size()-2; i++)
1088  {
1089  addPositionToBuffer(vertices[0], _buffer, pos++);
1090  addPositionToBuffer(vertices[i+1], _buffer, pos++);
1091  addPositionToBuffer(vertices[i+2], _buffer, pos++);
1092  }
1093  }
1094  }
1095  else if (mPrimitiveMode == PM_FACES_ON_CELLS)
1096  {
1097  std::vector<ACG::Vec3d> vertices;
1098  OpenVolumeMesh::FaceIter f_begin(mMesh.faces_begin()), f_end(mMesh.faces_end());
1099  for (OpenVolumeMesh::FaceIter f_it = f_begin; f_it != f_end; ++f_it)
1100  {
1101  if (mSkipUnselected && !mStatusAttrib[*f_it].selected()) continue;
1102  vertices.clear();
1103  for (OpenVolumeMesh::HalfFaceVertexIter hfv_it = mMesh.hfv_iter(mMesh.halfface_handle(*f_it,0)); hfv_it; ++hfv_it)
1104  vertices.push_back(mMesh.vertex(*hfv_it));
1105 
1106  for (int i = 0; i < 2; i++)
1107  {
1108  OpenVolumeMesh::CellHandle ch = mMesh.incident_cell(mMesh.halfface_handle(*f_it,i));
1109  if (ch != CellHandle(-1))
1110  {
1111  if (!is_inside(ch)) continue;
1112  ACG::Vec3d cog = getCOG(ch);
1113  for (unsigned int i = 0; i < vertices.size()-2; i++)
1114  {
1115  //we dont care about the correct facing because we dont cull the back side of faces
1116  addPositionToBuffer(vertices[0]*mScale + cog*(1-mScale), _buffer, pos++);
1117  addPositionToBuffer(vertices[i+1]*mScale + cog*(1-mScale), _buffer, pos++);
1118  addPositionToBuffer(vertices[i+2]*mScale + cog*(1-mScale), _buffer, pos++);
1119  }
1120  }
1121  }
1122 
1123  }
1124  }
1125  else if (mPrimitiveMode == PM_HALFFACES)
1126  {
1127  std::vector<ACG::Vec3d> vertices;
1128  OpenVolumeMesh::HalfFaceIter hf_begin(mMesh.halffaces_begin()), hf_end(mMesh.halffaces_end());
1129  for (OpenVolumeMesh::HalfFaceIter hf_it = hf_begin; hf_it != hf_end; ++hf_it)
1130  {
1131  if (mSkipUnselected && !mStatusAttrib[*hf_it].selected()) continue;
1132  if (mBoundaryOnly && !mMesh.is_boundary(*hf_it)) continue;
1133  if (!is_inside(*hf_it)) continue;
1134  vertices.clear();
1135  for (OpenVolumeMesh::HalfFaceVertexIter hfv_it = mMesh.hfv_iter(*hf_it); hfv_it; ++hfv_it)
1136  vertices.push_back(mMesh.vertex(*hfv_it));
1137 
1138  for (unsigned int i = 0; i < vertices.size()-2; i++)
1139  {
1140  addPositionToBuffer(vertices[0], _buffer, pos++);
1141  addPositionToBuffer(vertices[i+1], _buffer, pos++);
1142  addPositionToBuffer(vertices[i+2], _buffer, pos++);
1143  }
1144  }
1145  }
1146  else if (mPrimitiveMode == PM_CELLS)
1147  {
1148  std::vector<ACG::Vec3d> vertices;
1149  OpenVolumeMesh::CellIter c_begin(mMesh.cells_begin()), c_end(mMesh.cells_end());
1150  for (OpenVolumeMesh::CellIter c_it = c_begin; c_it != c_end; ++c_it)
1151  {
1152  if (mSkipUnselected && !mStatusAttrib[*c_it].selected()) continue;
1153  if (!is_inside(*c_it)) continue;
1154  std::vector<HalfFaceHandle> hfs = mMesh.cell(*c_it).halffaces();
1155  ACG::Vec3d cog = getCOG(*c_it);
1156  for (unsigned int i = 0; i < hfs.size(); ++i)
1157  {
1158  vertices.clear();
1159  for (OpenVolumeMesh::HalfFaceVertexIter hfv_it = mMesh.hfv_iter(hfs[i]); hfv_it; ++hfv_it)
1160  vertices.push_back(mScale*mMesh.vertex(*hfv_it)+(1-mScale)*cog);
1161 
1162  for (unsigned int i = 0; i < vertices.size()-2; i++)
1163  {
1164  addPositionToBuffer(vertices[0], _buffer, pos++);
1165  addPositionToBuffer(vertices[i+1], _buffer, pos++);
1166  addPositionToBuffer(vertices[i+2], _buffer, pos++);
1167  }
1168  }
1169  }
1170 
1171  }
1172  else if (mPrimitiveMode == PM_EDGES)
1173  {
1174  OpenVolumeMesh::EdgeIter e_begin(mMesh.edges_begin()), e_end(mMesh.edges_end());
1175  for (OpenVolumeMesh::EdgeIter e_it = e_begin; e_it != e_end; ++e_it)
1176  {
1177  if (mSkipUnselected && !mStatusAttrib[*e_it].selected()) continue;
1178  if (mBoundaryOnly && !mMesh.is_boundary(*e_it)) continue;
1179  if (!is_inside(*e_it)) continue;
1180 
1181  Edge e(mMesh.edge(*e_it));
1182  addPositionToBuffer(mMesh.vertex(e.from_vertex()), _buffer, pos++);
1183  addPositionToBuffer(mMesh.vertex(e.to_vertex()), _buffer, pos++);
1184  }
1185  }
1186  else if (mPrimitiveMode == PM_EDGES_ON_CELLS)
1187  {
1188  OpenVolumeMesh::EdgeIter e_begin(mMesh.edges_begin()), e_end(mMesh.edges_end());
1189  for (OpenVolumeMesh::EdgeIter e_it = e_begin; e_it != e_end; ++e_it)
1190  {
1191  if (mSkipUnselected && !mStatusAttrib[*e_it].selected()) continue;
1192 
1193  Edge e(mMesh.edge(*e_it));
1194  OpenVolumeMesh::HalfEdgeHandle heh = mMesh.halfedge_handle(*e_it, 0);
1195  for (OpenVolumeMesh::HalfEdgeCellIter hec_it = OpenVolumeMesh::HalfEdgeCellIter(heh,&mMesh); hec_it.valid(); ++hec_it)
1196  {
1197  if (hec_it->idx() != -1)
1198  {
1199  if (!is_inside(*hec_it)) continue;
1200  ACG::Vec3d cog = getCOG(*hec_it);
1201  addPositionToBuffer(mMesh.vertex(e.from_vertex())*mScale + cog*(1-mScale), _buffer, pos++);
1202  addPositionToBuffer(mMesh.vertex(e.to_vertex()) *mScale + cog*(1-mScale), _buffer, pos++);
1203  }
1204  }
1205  }
1206  }
1207  else if (mPrimitiveMode == PM_IRREGULAR_EDGES)
1208  {
1209  OpenVolumeMesh::EdgeIter e_begin(mMesh.edges_begin()), e_end(mMesh.edges_end());
1210  for (OpenVolumeMesh::EdgeIter e_it = e_begin; e_it != e_end; ++e_it)
1211  {
1212  if (mSkipUnselected && !mStatusAttrib[*e_it].selected()) continue;
1213  if (mBoundaryOnly && !mMesh.is_boundary(*e_it)) continue;
1214  if (!is_inside(*e_it)) continue;
1215 
1216  bool boundary = mMesh.is_boundary(*e_it);
1217  unsigned int valence = mMesh.valence(*e_it);
1218  // Skip regular
1219  if(( boundary && valence == 3) ||
1220  (!boundary && valence == 4)) continue;
1221  //skip boundary valence 2 edges if not drawn
1222  if ((!mShowIrregularOuterValence2Edges) && ( boundary && valence == 2)) continue;
1223  //skip irregular inner edges if not drawn
1224  if ((!mShowIrregularInnerEdges) && (( !boundary && valence != 4) ||
1225  ( boundary && valence < 2) ||
1226  ( boundary && valence > 3))) continue;
1227 
1228  Edge e(mMesh.edge(*e_it));
1229  addPositionToBuffer(mMesh.vertex(e.from_vertex()), _buffer, pos++);
1230  addPositionToBuffer(mMesh.vertex(e.to_vertex()), _buffer, pos++);
1231  }
1232  }
1233  else if (mPrimitiveMode == PM_HALFEDGES)
1234  {
1235  OpenVolumeMesh::HalfEdgeIter he_begin(mMesh.halfedges_begin()), he_end(mMesh.halfedges_end());
1236  for (OpenVolumeMesh::HalfEdgeIter he_it = he_begin; he_it != he_end; ++he_it)
1237  {
1238  if (mSkipUnselected && !mStatusAttrib[*he_it].selected()) continue;
1239  if (mBoundaryOnly && !mMesh.is_boundary(*he_it)) continue;
1240  if (!is_inside(*he_it)) continue;
1241 
1242  double lambda = 0.4;
1243  Edge e(mMesh.halfedge(*he_it));
1244  addPositionToBuffer(mMesh.vertex(e.from_vertex()), _buffer, pos++);
1245  addPositionToBuffer((1-lambda)*mMesh.vertex(e.from_vertex()) + lambda*mMesh.vertex(e.to_vertex()), _buffer, pos++);
1246  }
1247  }
1248  else /*if (mPrimitiveMode == PM_NONE)*/
1249  {
1250  //This case should not happen. Do nothing.
1251  }
1252 }
1253 
1259 template <class VolumeMesh>
1260 void VolumeMeshBufferManager<VolumeMesh>::buildNormalBuffer(unsigned char* _buffer)
1261 {
1262  if (mNormalMode == NM_NONE) return;
1263 
1264  unsigned int pos = 0;
1265 
1266  if ((mPrimitiveMode == PM_FACES) && (mNormalMode == NM_FACE))
1267  {
1268  OpenVolumeMesh::FaceIter f_begin(mMesh.faces_begin()), f_end(mMesh.faces_end());
1269  for (OpenVolumeMesh::FaceIter f_it = f_begin; f_it != f_end; ++f_it)
1270  {
1271  if (mBoundaryOnly && !mMesh.is_boundary(*f_it)) continue;
1272  if (!is_inside(*f_it)) continue;
1273  ACG::Vec3d normal = mNormalAttrib[*f_it];
1274  unsigned int numOfVerticesInFace = mMesh.valence(*f_it);
1275 
1276  for (unsigned int i = 0; i < numOfVerticesInFace - 2; i++)
1277  {
1278  addNormalToBuffer(normal, _buffer, pos++);
1279  addNormalToBuffer(normal, _buffer, pos++);
1280  addNormalToBuffer(normal, _buffer, pos++);
1281  }
1282  }
1283  }
1284  else if ((mPrimitiveMode == PM_FACES) && (mNormalMode == NM_VERTEX))
1285  {
1286  std::vector<ACG::Vec3d> normals;
1287  OpenVolumeMesh::FaceIter f_begin(mMesh.faces_begin()), f_end(mMesh.faces_end());
1288  for (OpenVolumeMesh::FaceIter f_it = f_begin; f_it != f_end; ++f_it)
1289  {
1290  if (mBoundaryOnly && !mMesh.is_boundary(*f_it)) continue;
1291  if (!is_inside(*f_it)) continue;
1292  normals.clear();
1293  for (OpenVolumeMesh::HalfFaceVertexIter hfv_it = mMesh.hfv_iter(mMesh.halfface_handle(*f_it,0)); hfv_it; ++hfv_it)
1294  normals.push_back(mNormalAttrib[*hfv_it]);
1295 
1296  for (unsigned int i = 0; i < normals.size()-2; i++)
1297  {
1298  addNormalToBuffer(normals[0], _buffer, pos++);
1299  addNormalToBuffer(normals[i+1], _buffer, pos++);
1300  addNormalToBuffer(normals[i+2], _buffer, pos++);
1301  }
1302  }
1303  }
1304  else if ((mPrimitiveMode == PM_HALFFACES) && (mNormalMode == NM_HALFFACE))
1305  {
1306  OpenVolumeMesh::HalfFaceIter hf_begin(mMesh.halffaces_begin()), hf_end(mMesh.halffaces_end());
1307  for (OpenVolumeMesh::HalfFaceIter hf_it = hf_begin; hf_it != hf_end; ++hf_it)
1308  {
1309  if (mBoundaryOnly && !mMesh.is_boundary(*hf_it)) continue;
1310  if (!is_inside(*hf_it)) continue;
1311  ACG::Vec3d normal = mNormalAttrib[*hf_it];
1312  unsigned int numOfVerticesInCell = 0;
1313  for (OpenVolumeMesh::HalfFaceVertexIter hfv_it = mMesh.hfv_iter(*hf_it); hfv_it; ++hfv_it)
1314  ++numOfVerticesInCell;
1315 
1316  for (unsigned int i = 0; i < numOfVerticesInCell- 2; i++)
1317  {
1318  addNormalToBuffer(normal, _buffer, pos++);
1319  addNormalToBuffer(normal, _buffer, pos++);
1320  addNormalToBuffer(normal, _buffer, pos++);
1321  }
1322  }
1323  }
1324  else if ((mPrimitiveMode == PM_HALFFACES) && (mNormalMode == NM_VERTEX))
1325  {
1326  std::vector<ACG::Vec3d> normals;
1327  OpenVolumeMesh::HalfFaceIter hf_begin(mMesh.halffaces_begin()), hf_end(mMesh.halffaces_end());
1328  for (OpenVolumeMesh::HalfFaceIter hf_it = hf_begin; hf_it != hf_end; ++hf_it)
1329  {
1330  if (mBoundaryOnly && !mMesh.is_boundary(*hf_it)) continue;
1331  if (!is_inside(*hf_it)) continue;
1332  normals.clear();
1333  for (OpenVolumeMesh::HalfFaceVertexIter hfv_it = mMesh.hfv_iter(*hf_it); hfv_it; ++hfv_it)
1334  normals.push_back(mNormalAttrib[*hfv_it]);
1335 
1336  for (unsigned int i = 0; i < normals.size()-2; i++)
1337  {
1338  addNormalToBuffer(normals[0], _buffer, pos++);
1339  addNormalToBuffer(normals[i+1], _buffer, pos++);
1340  addNormalToBuffer(normals[i+2], _buffer, pos++);
1341  }
1342  }
1343  }
1344  else if ((mPrimitiveMode == PM_CELLS) && (mNormalMode == NM_HALFFACE))
1345  {
1346  OpenVolumeMesh::CellIter c_begin(mMesh.cells_begin()), c_end(mMesh.cells_end());
1347  for (OpenVolumeMesh::CellIter c_it = c_begin; c_it != c_end; ++c_it)
1348  {
1349  if (!is_inside(*c_it)) continue;
1350  std::vector<HalfFaceHandle> hfs = mMesh.cell(*c_it).halffaces();
1351  for (unsigned int i = 0; i < hfs.size(); ++i)
1352  {
1353  ACG::Vec3d normal = -1.0*mNormalAttrib[hfs[i]];
1354  unsigned int numOfVerticesInFace = mMesh.valence(mMesh.face_handle(hfs[i]));
1355 
1356  for (unsigned int i = 0; i < numOfVerticesInFace-2; i++)
1357  {
1358  addNormalToBuffer(normal, _buffer, pos++);
1359  addNormalToBuffer(normal, _buffer, pos++);
1360  addNormalToBuffer(normal, _buffer, pos++);
1361  }
1362  }
1363  }
1364  }
1365  else if ((mPrimitiveMode == PM_CELLS) && (mNormalMode == NM_VERTEX))
1366  {
1367  std::vector<ACG::Vec3d> normals;
1368  OpenVolumeMesh::CellIter c_begin(mMesh.cells_begin()), c_end(mMesh.cells_end());
1369  for (OpenVolumeMesh::CellIter c_it = c_begin; c_it != c_end; ++c_it)
1370  {
1371  if (!is_inside(*c_it)) continue;
1372  std::vector<HalfFaceHandle> hfs = mMesh.cell(*c_it).halffaces();
1373 
1374  for (unsigned int i = 0; i < hfs.size(); ++i)
1375  {
1376  normals.clear();
1377  for (OpenVolumeMesh::HalfFaceVertexIter hfv_it = mMesh.hfv_iter(hfs[i]); hfv_it; ++hfv_it)
1378  normals.push_back(mNormalAttrib[*hfv_it]);
1379 
1380  for (unsigned int i = 0; i < normals.size()-2; i++)
1381  {
1382  addNormalToBuffer(normals[0], _buffer, pos++);
1383  addNormalToBuffer(normals[i+1], _buffer, pos++);
1384  addNormalToBuffer(normals[i+2], _buffer, pos++);
1385  }
1386  }
1387  }
1388  }
1389 
1390 }
1391 
1397 template <class VolumeMesh>
1398 void VolumeMeshBufferManager<VolumeMesh>::buildColorBuffer(unsigned char* _buffer)
1399 {
1400  unsigned int pos = 0;
1401 
1402  if ((mPrimitiveMode == PM_VERTICES) && (mColorMode == CM_VERTEX))
1403  {
1404  for (unsigned int i = 0; i < mMesh.n_vertices(); ++i)
1405  {
1406  if (mBoundaryOnly && !mMesh.is_boundary(VertexHandle(i))) continue;
1407  if (!is_inside(VertexHandle(i))) continue;
1408  ACG::Vec4f color = mColorAttrib[VertexHandle(i)];
1409  addColorToBuffer(color, _buffer, pos++);
1410  }
1411  }
1412  else if ((mPrimitiveMode == PM_FACES) && (mColorMode == CM_VERTEX))
1413  {
1414  std::vector<ACG::Vec4f> colors;
1415  OpenVolumeMesh::FaceIter f_begin(mMesh.faces_begin()), f_end(mMesh.faces_end());
1416  for (OpenVolumeMesh::FaceIter f_it = f_begin; f_it != f_end; ++f_it)
1417  {
1418  if (mBoundaryOnly && !mMesh.is_boundary(*f_it)) continue;
1419  if (!is_inside(*f_it)) continue;
1420  colors.clear();
1421 
1422  for (OpenVolumeMesh::HalfFaceVertexIter hfv_it = mMesh.hfv_iter(mMesh.halfface_handle(*f_it,0)); hfv_it; ++hfv_it)
1423  colors.push_back(mColorAttrib[*hfv_it]);
1424 
1425  for (unsigned int i = 0; i < (colors.size()-2); i++)
1426  {
1427  addColorToBuffer(colors[0], _buffer, pos++);
1428  addColorToBuffer(colors[i+1], _buffer, pos++);
1429  addColorToBuffer(colors[i+2], _buffer, pos++);
1430  }
1431  }
1432  }
1433  else if ((mPrimitiveMode == PM_FACES) && (mColorMode == CM_FACE))
1434  {
1435  OpenVolumeMesh::FaceIter f_begin(mMesh.faces_begin()), f_end(mMesh.faces_end());
1436  for (OpenVolumeMesh::FaceIter f_it = f_begin; f_it != f_end; ++f_it)
1437  {
1438  if (mBoundaryOnly && !mMesh.is_boundary(*f_it)) continue;
1439  if (!is_inside(*f_it)) continue;
1440  ACG::Vec4f color = mColorAttrib[*f_it];
1441 
1442  unsigned int numOfVerticesInFace = mMesh.valence(*f_it);
1443  unsigned int numOfDrawnTriangles = numOfVerticesInFace-2;
1444 
1445  for (unsigned int i = 0; i < numOfDrawnTriangles*3; i++)
1446  addColorToBuffer(color, _buffer, pos++);
1447  }
1448  }
1449  else if ((mPrimitiveMode == PM_HALFFACES) && (mColorMode == CM_HALFFACE))
1450  {
1451  OpenVolumeMesh::HalfFaceIter hf_begin(mMesh.halffaces_begin()), hf_end(mMesh.halffaces_end());
1452  for (OpenVolumeMesh::HalfFaceIter hf_it = hf_begin; hf_it != hf_end; ++hf_it)
1453  {
1454  if (mBoundaryOnly && !mMesh.is_boundary(*hf_it)) continue;
1455  if (!is_inside(*hf_it)) continue;
1456  ACG::Vec4f color = mColorAttrib[*hf_it];
1457 
1458  unsigned int numOfVerticesInFace = mMesh.valence(mMesh.face_handle(*hf_it));
1459  unsigned int numOfDrawnTriangles = numOfVerticesInFace-2;
1460 
1461  for (unsigned int i = 0; i < numOfDrawnTriangles*3; i++)
1462  addColorToBuffer(color, _buffer, pos++);
1463  }
1464  }
1465  else if ((mPrimitiveMode == PM_HALFFACES) && (mColorMode == CM_VERTEX))
1466  {
1467  std::vector<ACG::Vec4f> colors;
1468  OpenVolumeMesh::HalfFaceIter hf_begin(mMesh.halffaces_begin()), hf_end(mMesh.halffaces_end());
1469  for (OpenVolumeMesh::HalfFaceIter hf_it = hf_begin; hf_it != hf_end; ++hf_it)
1470  {
1471  if (mBoundaryOnly && !mMesh.is_boundary(*hf_it)) continue;
1472  if (!is_inside(*hf_it)) continue;
1473  colors.clear();
1474 
1475  for (OpenVolumeMesh::HalfFaceVertexIter hfv_it = mMesh.hfv_iter(*hf_it); hfv_it; ++hfv_it)
1476  colors.push_back(mColorAttrib[*hfv_it]);
1477 
1478  for (unsigned int i = 0; i < (colors.size()-2); i++)
1479  {
1480  addColorToBuffer(colors[0], _buffer, pos++);
1481  addColorToBuffer(colors[i+1], _buffer, pos++);
1482  addColorToBuffer(colors[i+2], _buffer, pos++);
1483  }
1484  }
1485  }
1486  else if ((mPrimitiveMode == PM_CELLS) && (mColorMode == CM_CELL))
1487  {
1488  OpenVolumeMesh::CellIter c_begin(mMesh.cells_begin()), c_end(mMesh.cells_end());
1489  for (OpenVolumeMesh::CellIter c_it = c_begin; c_it != c_end; ++c_it)
1490  {
1491  if (!is_inside(*c_it)) continue;
1492  ACG::Vec4f color = mColorAttrib[*c_it];
1493  std::vector<HalfFaceHandle> hfs = mMesh.cell(*c_it).halffaces();
1494  for (unsigned int i = 0; i < hfs.size(); ++i)
1495  {
1496  unsigned int numOfVerticesInHalfface = 0;
1497  for (OpenVolumeMesh::HalfFaceVertexIter hfv_it = mMesh.hfv_iter(hfs[i]); hfv_it; ++hfv_it)
1498  ++numOfVerticesInHalfface;
1499 
1500  unsigned int numOfDrawnFaces = numOfVerticesInHalfface-2;
1501  for (unsigned int i = 0; i < numOfDrawnFaces*3; i++)
1502  addColorToBuffer(color, _buffer, pos++);
1503  }
1504  }
1505  }
1506  else if ((mPrimitiveMode == PM_CELLS) && (mColorMode == CM_HALFFACE))
1507  {
1508  OpenVolumeMesh::CellIter c_begin(mMesh.cells_begin()), c_end(mMesh.cells_end());
1509  for (OpenVolumeMesh::CellIter c_it = c_begin; c_it != c_end; ++c_it)
1510  {
1511  if (!is_inside(*c_it)) continue;
1512  std::vector<HalfFaceHandle> hfs = mMesh.cell(*c_it).halffaces();
1513  for (unsigned int i = 0; i < hfs.size(); ++i)
1514  {
1515  ACG::Vec4f color = mColorAttrib[hfs[i]];
1516  unsigned int numOfVerticesInHalfface = 0;
1517  for (OpenVolumeMesh::HalfFaceVertexIter hfv_it = mMesh.hfv_iter(hfs[i]); hfv_it; ++hfv_it)
1518  ++numOfVerticesInHalfface;
1519 
1520  unsigned int numOfDrawnFaces = numOfVerticesInHalfface-2;
1521  for (unsigned int i = 0; i < numOfDrawnFaces*3; i++)
1522  addColorToBuffer(color, _buffer, pos++);
1523  }
1524  }
1525  }
1526  else if ((mPrimitiveMode == PM_CELLS) && (mColorMode == CM_FACE))
1527  {
1528  OpenVolumeMesh::CellIter c_begin(mMesh.cells_begin()), c_end(mMesh.cells_end());
1529  for (OpenVolumeMesh::CellIter c_it = c_begin; c_it != c_end; ++c_it)
1530  {
1531  if (!is_inside(*c_it)) continue;
1532  std::vector<HalfFaceHandle> hfs = mMesh.cell(*c_it).halffaces();
1533  for (unsigned int i = 0; i < hfs.size(); ++i)
1534  {
1535  ACG::Vec4f color = mColorAttrib[mMesh.face_handle(hfs[i])];
1536  unsigned int numOfVerticesInHalfface = 0;
1537  for (OpenVolumeMesh::HalfFaceVertexIter hfv_it = mMesh.hfv_iter(hfs[i]); hfv_it; ++hfv_it)
1538  ++numOfVerticesInHalfface;
1539 
1540  unsigned int numOfDrawnFaces = numOfVerticesInHalfface-2;
1541  for (unsigned int i = 0; i < numOfDrawnFaces*3; i++)
1542  addColorToBuffer(color, _buffer, pos++);
1543  }
1544  }
1545  }
1546  else if ((mPrimitiveMode == PM_CELLS) && (mColorMode == CM_VERTEX))
1547  {
1548  std::vector<ACG::Vec4f> colors;
1549  OpenVolumeMesh::CellIter c_begin(mMesh.cells_begin()), c_end(mMesh.cells_end());
1550  for (OpenVolumeMesh::CellIter c_it = c_begin; c_it != c_end; ++c_it)
1551  {
1552  if (!is_inside(*c_it)) continue;
1553  std::vector<HalfFaceHandle> hfs = mMesh.cell(*c_it).halffaces();
1554  for (unsigned int i = 0; i < hfs.size(); ++i)
1555  {
1556  colors.clear();
1557  for (OpenVolumeMesh::HalfFaceVertexIter hfv_it = mMesh.hfv_iter(hfs[i]); hfv_it; ++hfv_it)
1558  colors.push_back(mColorAttrib[*hfv_it]);
1559 
1560  for (unsigned int i = 0; i < colors.size()-2; i++)
1561  {
1562  addColorToBuffer(colors[0], _buffer, pos++);
1563  addColorToBuffer(colors[i+1], _buffer, pos++);
1564  addColorToBuffer(colors[i+2], _buffer, pos++);
1565  }
1566  }
1567  }
1568  }
1569  else if ((mPrimitiveMode == PM_EDGES) && (mColorMode == CM_EDGE))
1570  {
1571  OpenVolumeMesh::EdgeIter e_begin(mMesh.edges_begin()), e_end(mMesh.edges_end());
1572  for (OpenVolumeMesh::EdgeIter e_it = e_begin; e_it != e_end; ++e_it)
1573  {
1574  if (mBoundaryOnly && !mMesh.is_boundary(*e_it)) continue;
1575  if (!is_inside(*e_it)) continue;
1576  ACG::Vec4f color = mColorAttrib[*e_it];
1577  addColorToBuffer(color, _buffer, pos++);
1578  addColorToBuffer(color, _buffer, pos++);
1579  }
1580  }
1581  else if ((mPrimitiveMode == PM_EDGES) && (mShowIrregularInnerEdges || mShowIrregularOuterValence2Edges))
1582  {
1583  OpenVolumeMesh::EdgeIter e_begin(mMesh.edges_begin()), e_end(mMesh.edges_end());
1584  for (OpenVolumeMesh::EdgeIter e_it = e_begin; e_it != e_end; ++e_it)
1585  {
1586  if (mBoundaryOnly && !mMesh.is_boundary(*e_it)) continue;
1587  if (!is_inside(*e_it)) continue;
1588 
1589  bool boundary = mMesh.is_boundary(*e_it);
1590  unsigned int valence = mMesh.valence(*e_it);
1591 
1592  bool isIrregularInner = ( boundary && valence < 2) || ( boundary && valence > 3) || (!boundary && valence != 4);
1593  bool isIrregularOuterValence2 = ( boundary && valence == 2);
1594 
1595  ACG::Vec4f color;
1596 
1597  if (isIrregularInner && mShowIrregularInnerEdges)
1598  color = getValenceColorCode(valence, !boundary);
1599  else if (isIrregularOuterValence2 && mShowIrregularOuterValence2Edges)
1600  color = getValenceColorCode(valence, !boundary);
1601  else
1602  color = mDefaultColor;
1603 
1604  addColorToBuffer(color, _buffer, pos++);
1605  addColorToBuffer(color, _buffer, pos++);
1606  }
1607  }
1608  else if ( mPrimitiveMode == PM_IRREGULAR_EDGES )
1609  {
1610  OpenVolumeMesh::EdgeIter e_begin(mMesh.edges_begin()), e_end(mMesh.edges_end());
1611  for (OpenVolumeMesh::EdgeIter e_it = e_begin; e_it != e_end; ++e_it)
1612  {
1613  if (mBoundaryOnly && !mMesh.is_boundary(*e_it)) continue;
1614  if (!is_inside(*e_it)) continue;
1615 
1616  bool boundary = mMesh.is_boundary(*e_it);
1617  unsigned int valence = mMesh.valence(*e_it);
1618 
1619  bool isRegular = ( boundary && valence == 3) || (!boundary && valence == 4);
1620  bool isIrregularInner = ( boundary && valence < 2) || ( boundary && valence > 3) || (!boundary && valence != 4);
1621  bool isIrregularOuterValence2 = ( boundary && valence == 2);
1622 
1623  if (isRegular) continue;
1624  if (isIrregularInner && !mShowIrregularInnerEdges) continue;
1625  if (isIrregularOuterValence2 && !mShowIrregularOuterValence2Edges) continue;
1626 
1627  ACG::Vec4f color;
1628 
1629  if (isIrregularInner && mShowIrregularInnerEdges)
1630  color = getValenceColorCode(valence, !boundary);
1631  else if (isIrregularOuterValence2 && mShowIrregularOuterValence2Edges)
1632  color = getValenceColorCode(valence, !boundary);
1633  else
1634  color = mDefaultColor;
1635 
1636  addColorToBuffer(color, _buffer, pos++);
1637  addColorToBuffer(color, _buffer, pos++);
1638  }
1639  }
1640  else if ((mPrimitiveMode == PM_HALFEDGES) && (mColorMode == CM_HALFEDGE))
1641  {
1642  OpenVolumeMesh::HalfEdgeIter he_begin(mMesh.halfedges_begin()), he_end(mMesh.halfedges_end());
1643  for (OpenVolumeMesh::HalfEdgeIter he_it = he_begin; he_it != he_end; ++he_it)
1644  {
1645  if (mBoundaryOnly && !mMesh.is_boundary(*he_it)) continue;
1646  if (!is_inside(*he_it)) continue;
1647  ACG::Vec4f color = mColorAttrib[*he_it];
1648 
1649  addColorToBuffer(color, _buffer, pos++);
1650  addColorToBuffer(color, _buffer, pos++);
1651  }
1652  }
1653 
1654 }
1655 
1661 template <class VolumeMesh>
1662 void VolumeMeshBufferManager<VolumeMesh>::buildTexCoordBuffer(unsigned char* _buffer)
1663 {
1664 
1665  unsigned int pos = 0;
1666 
1667  if (mTexCoordMode == TCM_NONE)
1668  return;
1669 
1670  if (mPrimitiveMode == PM_FACES)
1671  {
1672  std::vector<ACG::Vec2f> texCoords;
1673  OpenVolumeMesh::FaceIter f_begin(mMesh.faces_begin()), f_end(mMesh.faces_end());
1674  for (OpenVolumeMesh::FaceIter f_it = f_begin; f_it != f_end; ++f_it)
1675  {
1676  if (mBoundaryOnly && !mMesh.is_boundary(*f_it)) continue;
1677  if (!is_inside(*f_it)) continue;
1678  texCoords.clear();
1679 
1680  for (OpenVolumeMesh::HalfFaceVertexIter hfv_it = mMesh.hfv_iter(mMesh.halfface_handle(*f_it,0)); hfv_it; ++hfv_it)
1681  texCoords.push_back(mTexcoordAttrib[*hfv_it]);
1682 
1683  for (unsigned int i = 0; i < (texCoords.size()-2); i++)
1684  {
1685  addTexCoordToBuffer(texCoords[0], _buffer, pos++);
1686  addTexCoordToBuffer(texCoords[i+1], _buffer, pos++);
1687  addTexCoordToBuffer(texCoords[i+2], _buffer, pos++);
1688  }
1689  }
1690  }
1691  else if (mPrimitiveMode == PM_HALFFACES)
1692  {
1693  std::vector<ACG::Vec2f> texCoords;
1694  OpenVolumeMesh::HalfFaceIter hf_begin(mMesh.halffaces_begin()), hf_end(mMesh.halffaces_end());
1695  for (OpenVolumeMesh::HalfFaceIter hf_it = hf_begin; hf_it != hf_end; ++hf_it)
1696  {
1697  if (mBoundaryOnly && !mMesh.is_boundary(*hf_it)) continue;
1698  if (!is_inside(*hf_it)) continue;
1699  texCoords.clear();
1700 
1701  for (OpenVolumeMesh::HalfFaceVertexIter hfv_it = mMesh.hfv_iter(*hf_it); hfv_it; ++hfv_it)
1702  texCoords.push_back(mTexcoordAttrib[*hfv_it]);
1703 
1704  for (unsigned int i = 0; i < (texCoords.size()-2); i++)
1705  {
1706  addTexCoordToBuffer(texCoords[0], _buffer, pos++);
1707  addTexCoordToBuffer(texCoords[i+1], _buffer, pos++);
1708  addTexCoordToBuffer(texCoords[i+2], _buffer, pos++);
1709  }
1710  }
1711  }
1712 
1713 }
1714 
1723 template <class VolumeMesh>
1724 void VolumeMeshBufferManager<VolumeMesh>::buildPickColorBuffer(ACG::GLState& _state, unsigned int _offset, unsigned char* _buffer)
1725 {
1726  unsigned int pos = 0;
1727 
1728  if (mPrimitiveMode == PM_VERTICES)
1729  {
1730  for (unsigned int i = 0; i < mMesh.n_vertices(); ++i)
1731  {
1732  if (mBoundaryOnly && !mMesh.is_boundary(VertexHandle(i))) continue;
1733  if (!is_inside(VertexHandle(i))) continue;
1734  ACG::Vec4uc color = _state.pick_get_name_color(VertexHandle(i).idx() + _offset);
1735  addColorToBuffer(color, _buffer, pos++);
1736  }
1737  }
1738  if (mPrimitiveMode == PM_VERTICES_ON_CELLS)
1739  {
1740  for (unsigned int i = 0; i < mMesh.n_vertices(); ++i) {
1741  ACG::Vec4uc color = _state.pick_get_name_color(VertexHandle(i).idx() + _offset);
1742  unsigned int numOfIncidentCells = getNumOfIncidentCells(VertexHandle(i));
1743  for (unsigned int j = 0; j < numOfIncidentCells; j++)
1744  addColorToBuffer(color, _buffer, pos++);
1745  }
1746  }
1747  else if (mPrimitiveMode == PM_EDGES)
1748  {
1749  OpenVolumeMesh::EdgeIter e_begin(mMesh.edges_begin()), e_end(mMesh.edges_end());
1750  for (OpenVolumeMesh::EdgeIter e_it = e_begin; e_it != e_end; ++e_it)
1751  {
1752  if (mBoundaryOnly && !mMesh.is_boundary(*e_it)) continue;
1753  if (!is_inside(*e_it)) continue;
1754  ACG::Vec4uc color = _state.pick_get_name_color(e_it->idx()+_offset);
1755  addColorToBuffer(color, _buffer, pos++);
1756  addColorToBuffer(color, _buffer, pos++);
1757  }
1758  }
1759  else if (mPrimitiveMode == PM_EDGES_ON_CELLS)
1760  {
1761  OpenVolumeMesh::EdgeIter e_begin(mMesh.edges_begin()), e_end(mMesh.edges_end());
1762  for (OpenVolumeMesh::EdgeIter e_it = e_begin; e_it != e_end; ++e_it)
1763  {
1764  ACG::Vec4uc color = _state.pick_get_name_color(e_it->idx()+_offset);
1765  unsigned int numOfIncidentCells = getNumOfIncidentCells(*e_it);
1766  for (unsigned int i = 0; i < numOfIncidentCells*2;i++)
1767  addColorToBuffer(color, _buffer, pos++);
1768  }
1769  }
1770  else if (mPrimitiveMode == PM_FACES)
1771  {
1772  OpenVolumeMesh::FaceIter f_begin(mMesh.faces_begin()), f_end(mMesh.faces_end());
1773  for (OpenVolumeMesh::FaceIter f_it = f_begin; f_it != f_end; ++f_it)
1774  {
1775  if (mBoundaryOnly && !mMesh.is_boundary(*f_it)) continue;
1776  if (!is_inside(*f_it)) continue;
1777  ACG::Vec4uc color = _state.pick_get_name_color(f_it->idx());
1778 
1779  unsigned int numOfVertices = 0;
1780  for (OpenVolumeMesh::HalfFaceVertexIter hfv_it = mMesh.hfv_iter(mMesh.halfface_handle(*f_it,0)); hfv_it; ++hfv_it)
1781  ++numOfVertices;
1782 
1783  for (unsigned int i = 0; i < (numOfVertices-2)*3; i++)
1784  addColorToBuffer(color, _buffer, pos++);
1785  }
1786  }
1787  else if (mPrimitiveMode == PM_FACES_ON_CELLS)
1788  {
1789  OpenVolumeMesh::FaceIter f_begin(mMesh.faces_begin()), f_end(mMesh.faces_end());
1790  for (OpenVolumeMesh::FaceIter f_it = f_begin; f_it != f_end; ++f_it)
1791  {
1792  ACG::Vec4uc color = _state.pick_get_name_color(f_it->idx()+_offset);
1793 
1794  unsigned int numOfVerticesInHalfface = 0;
1795  for (OpenVolumeMesh::HalfFaceVertexIter hfv_it = mMesh.hfv_iter(mMesh.halfface_handle(*f_it,0)); hfv_it; ++hfv_it)
1796  ++numOfVerticesInHalfface;
1797 
1798  for (int i = 0; i < 2; i++)
1799  {
1800  OpenVolumeMesh::CellHandle ch = mMesh.incident_cell(mMesh.halfface_handle(*f_it,i));
1801  if (ch != CellHandle(-1))
1802  {
1803  if (!is_inside(ch)) continue;
1804  for (unsigned int i = 0; i < (numOfVerticesInHalfface-2)*3; i++)
1805  addColorToBuffer(color, _buffer, pos++);
1806  }
1807  }
1808  }
1809  }
1810  else if (mPrimitiveMode == PM_CELLS)
1811  {
1812  OpenVolumeMesh::CellIter c_begin(mMesh.cells_begin()), c_end(mMesh.cells_end());
1813  for (OpenVolumeMesh::CellIter c_it = c_begin; c_it != c_end; ++c_it)
1814  {
1815  if (!is_inside(*c_it)) continue;
1816  ACG::Vec4uc color = _state.pick_get_name_color(c_it->idx()+_offset);
1817  std::vector<HalfFaceHandle> hfs = mMesh.cell(*c_it).halffaces();
1818  for (unsigned int i = 0; i < hfs.size(); ++i)
1819  {
1820  unsigned int numOfVerticesInHalfface = 0;
1821  for (OpenVolumeMesh::HalfFaceVertexIter hfv_it = mMesh.hfv_iter(hfs[i]); hfv_it; ++hfv_it)
1822  ++numOfVerticesInHalfface;
1823 
1824  unsigned int numOfDrawnFaces = numOfVerticesInHalfface-2;
1825  for (unsigned int i = 0; i < numOfDrawnFaces*3; i++)
1826  addColorToBuffer(color, _buffer, pos++);
1827  }
1828  }
1829  }
1830 }
1831 
1839 template <class VolumeMesh>
1840 GLuint VolumeMeshBufferManager<VolumeMesh>::getBuffer()
1841 {
1842  if ((mBuffer == 0) || optionsChanged() || mInvalidated)
1843  {
1844 
1845  if (mBuffer == 0)
1846  ACG::GLState::genBuffers(1, &mBuffer);
1847 
1848  calculateVertexDeclaration();
1849 
1850  if (optionsChanged())
1851  mNumOfVertices = -1;
1852 
1853  unsigned int numOfVertices = getNumOfVertices();
1854 
1855  if (getNumOfVertices() > 0)
1856  {
1857 
1858  unsigned int bufferSize = mVertexSize * numOfVertices;
1859 
1860  ACG::GLState::bindBuffer(GL_ARRAY_BUFFER, mBuffer);
1861  ACG::GLState::bufferData(GL_ARRAY_BUFFER, bufferSize, 0, GL_STATIC_DRAW);
1862 
1863  unsigned char* buffer = (unsigned char *) ACG::GLState::mapBuffer(
1864  GL_ARRAY_BUFFER, GL_READ_WRITE);
1865 
1866  if (buffer)
1867  {
1868 
1869  if (positionsNeedRebuild())
1870  buildVertexBuffer(buffer);
1871  if (normalsNeedRebuild())
1872  buildNormalBuffer(buffer);
1873  if (colorsNeedRebuild())
1874  buildColorBuffer(buffer);
1875  if (texCoordsNeedRebuild())
1876  buildTexCoordBuffer(buffer);
1877 
1878 
1879  ACG::GLState::unmapBuffer(GL_ARRAY_BUFFER);
1880 
1881  ACG::GLState::bindBuffer(GL_ARRAY_BUFFER, 0);
1882 
1883  }
1884  else
1885  {
1886  std::cerr << "error while mapping buffer" << std::endl;
1887  }
1888 
1889  }
1890 
1891  saveOptions();
1892  mInvalidated = false;
1893  mGeometryChanged = false;
1894  mColorsChanged = false;
1895  mNormalsChanged = false;
1896  mTexCoordsChanged = false;
1897 
1898  }
1899 
1900  return mBuffer;
1901 }
1902 
1911 template <class VolumeMesh>
1912 GLuint VolumeMeshBufferManager<VolumeMesh>::getPickBuffer(ACG::GLState &_state, unsigned int _offset)
1913 {
1914  if (_offset != mCurrentPickOffset || _state.pick_current_index() != mGlobalPickOffset)
1915  {
1916  invalidateColors();
1917  mGlobalPickOffset = _state.pick_current_index();
1918  }
1919 
1920  if ((mBuffer == 0) || optionsChanged() || mInvalidated)
1921  {
1922  if (mBuffer == 0)
1923  ACG::GLState::genBuffers(1, &mBuffer);
1924 
1925  calculateVertexDeclaration();
1926 
1927  if (optionsChanged())
1928  mNumOfVertices = -1;
1929 
1930  unsigned int numOfVertices = getNumOfVertices();
1931 
1932  if (getNumOfVertices() > 0)
1933  {
1934 
1935  unsigned int bufferSize = mVertexSize * numOfVertices;
1936 
1937  ACG::GLState::bindBuffer(GL_ARRAY_BUFFER, mBuffer);
1938  ACG::GLState::bufferData(GL_ARRAY_BUFFER, bufferSize, 0, GL_STATIC_DRAW);
1939 
1940  unsigned char* buffer = (unsigned char *) ACG::GLState::mapBuffer(GL_ARRAY_BUFFER, GL_READ_WRITE);
1941 
1942  if (buffer)
1943  {
1944 
1945  if (positionsNeedRebuild())
1946  buildVertexBuffer(buffer);
1947  if (colorsNeedRebuild())
1948  buildPickColorBuffer(_state, _offset, buffer);
1949 
1950  ACG::GLState::unmapBuffer(GL_ARRAY_BUFFER);
1951 
1952  ACG::GLState::bindBuffer(GL_ARRAY_BUFFER, 0);
1953 
1954  }
1955  else
1956  {
1957  std::cerr << "error while mapping buffer" << std::endl;
1958  }
1959 
1960  }
1961 
1962  mCurrentPickOffset = _offset;
1963  saveOptions();
1964  mInvalidated = false;
1965  mGeometryChanged = false;
1966  mColorsChanged = false;
1967  mTexCoordsChanged = false;
1968 
1969  }
1970 
1971  return mBuffer;
1972 }
1973 
1977 template <class VolumeMesh>
1978 void VolumeMeshBufferManager<VolumeMesh>::invalidate()
1979 {
1980  invalidateGeometry();
1981  invalidateNormals();
1982  invalidateColors();
1983 }
1984 
1988 template <class VolumeMesh>
1989 void VolumeMeshBufferManager<VolumeMesh>::invalidateGeometry()
1990 {
1991  mInvalidated = true;
1992  mNumOfVertices = -1;
1993  mGeometryChanged = true;
1994  mColorsChanged = true;
1995  mTexCoordsChanged = true;
1996  mNormalsChanged = true;
1997  mCogsValid = false;
1998  mCellInsidenessValid = false;
1999 }
2000 
2004 template <class VolumeMesh>
2005 void VolumeMeshBufferManager<VolumeMesh>::invalidateColors()
2006 {
2007  mInvalidated = true;
2008  mColorsChanged = true;
2009 }
2010 
2014 template <class VolumeMesh>
2015 void VolumeMeshBufferManager<VolumeMesh>::invalidateNormals()
2016 {
2017  mInvalidated = true;
2018  mNormalsChanged = true;
2019 }
2020 
2024 template <class VolumeMesh>
2025 void VolumeMeshBufferManager<VolumeMesh>::invalidateTexCoords()
2026 {
2027  mInvalidated = true;
2028  mTexCoordsChanged = true;
2029 }
2030 
2036 template <class VolumeMesh>
2037 void VolumeMeshBufferManager<VolumeMesh>::free()
2038 {
2039  if (mBuffer != 0)
2040  ACG::GLState::deleteBuffers(1, &mBuffer);
2041 
2042  mBuffer = 0;
2043 
2044  invalidate();
2045 }
VolumeMeshBufferManager::getValenceColorCode
ACG::Vec4f getValenceColorCode(unsigned int _valence, bool _inner) const
Returns a color code for irregular edges.
Definition: VolumeMeshBufferManagerT.cc:680
VolumeMeshBufferManager::setOptionsFromDrawMode
void setOptionsFromDrawMode(ACG::SceneGraph::DrawModes::DrawMode _drawMode)
Configures the buffer manager's options from a DrawMode.
Definition: VolumeMeshBufferManagerT.cc:336
VolumeMeshBufferManager::calculateCOGs
void calculateCOGs()
Calculates the center of gravity for all cells.
Definition: VolumeMeshBufferManagerT.cc:951
ACG
Namespace providing different geometric functions concerning angles.
Definition: DBSCANT.cc:51
ACG::GLState::bindBuffer
static void bindBuffer(GLenum _target, GLuint _buffer)
replaces glBindBuffer, supports locking
Definition: GLState.cc:1764
VolumeMeshBufferManager::invalidate
void invalidate()
Invalidates the buffer.
Definition: VolumeMeshBufferManagerT.cc:1978
VolumeMeshBufferManager::clearCutPlanes
void clearCutPlanes()
Removes all cut planes.
Definition: VolumeMeshBufferManagerT.cc:424
VolumeMeshBufferManager::invalidateColors
void invalidateColors()
Invalidates colors.
Definition: VolumeMeshBufferManagerT.cc:2005
VolumeMeshBufferManager::invalidateNormals
void invalidateNormals()
Invalidates normals.
Definition: VolumeMeshBufferManagerT.cc:2015
VolumeMeshBufferManager::buildColorBuffer
void buildColorBuffer(unsigned char *_buffer)
Adds all colors to the buffer.
Definition: VolumeMeshBufferManagerT.cc:1398
ACG::GLState::pick_get_name_color
Vec4uc pick_get_name_color(unsigned int _idx)
Definition: GLState.cc:1064
VolumeMeshBufferManager::texCoordsNeedRebuild
bool texCoordsNeedRebuild()
Checks whether texture coordinates need to be rebuild.
Definition: VolumeMeshBufferManagerT.cc:1015
VolumeMeshBufferManager::free
void free()
Deletes the buffers on the GPU.
Definition: VolumeMeshBufferManagerT.cc:2037
VolumeMeshBufferManager::addPositionToBuffer
void addPositionToBuffer(ACG::Vec3d _position, unsigned char *_buffer, unsigned int _offset)
Adds a position to the buffer.
Definition: VolumeMeshBufferManagerT.cc:160
ACG::Vec4f
VectorT< float, 4 > Vec4f
Definition: VectorT.hh:144
ACG::GLState::unmapBuffer
static GLboolean unmapBuffer(GLenum target)
Definition: GLState.cc:2114
VolumeMeshBufferManager::addUCharToBuffer
void addUCharToBuffer(unsigned char _value, unsigned char *&_buffer)
Adds an unsigned char to the buffer.
Definition: VolumeMeshBufferManagerT.cc:143
ACG::Vec3d
VectorT< double, 3 > Vec3d
Definition: VectorT.hh:127
VolumeMeshBufferManager::positionsNeedRebuild
bool positionsNeedRebuild()
Checks whether positions need to be rebuild.
Definition: VolumeMeshBufferManagerT.cc:983
ACG::GLState::mapBuffer
static GLvoid * mapBuffer(GLenum target, GLenum access)
Definition: GLState.cc:2109
VolumeMeshBufferManager
This class creates buffers that can be used to render open volume meshs.
Definition: VolumeMeshBufferManager.hh:69
VolumeMeshBufferManager::addCutPlane
void addCutPlane(const typename VolumeMeshBufferManager< VolumeMesh >::Plane &_p)
Adds a cut plane.
Definition: VolumeMeshBufferManagerT.cc:439
VolumeMeshBufferManager::getBuffer
GLuint getBuffer()
Returns the name of the buffer.
Definition: VolumeMeshBufferManagerT.cc:1840
VolumeMeshBufferManager::getNumOfIncidentCells
int getNumOfIncidentCells(OpenVolumeMesh::FaceHandle _fh)
Returns the number of cells that are incident to the given face and also inside w.r.t. all cut planes.
Definition: VolumeMeshBufferManagerT.cc:876
VolumeMeshBufferManager::buildPickColorBuffer
void buildPickColorBuffer(ACG::GLState &_state, unsigned int _offset, unsigned char *_buffer)
Adds all picking colors to the buffer.
Definition: VolumeMeshBufferManagerT.cc:1724
VolumeMeshBufferManager::setDefaultColor
void setDefaultColor(ACG::Vec4f _defaultColor)
Sets the default color.
Definition: VolumeMeshBufferManagerT.cc:318
VolumeMeshBufferManager::getPickBuffer
GLuint getPickBuffer(ACG::GLState &_state, unsigned int _offset)
Returns the name of the pick buffer.
Definition: VolumeMeshBufferManagerT.cc:1912
VolumeMeshBufferManager::calculateVertexDeclaration
void calculateVertexDeclaration()
Constructs a VertexDeclaration, the size and the offsets for the vertices stored in the buffer...
Definition: VolumeMeshBufferManagerT.cc:256
VolumeMeshBufferManager::addNormalToBuffer
void addNormalToBuffer(ACG::Vec3d _normal, unsigned char *_buffer, unsigned int _offset)
Adds a normal to the buffer.
Definition: VolumeMeshBufferManagerT.cc:221
VolumeMeshBufferManager::addColorToBuffer
void addColorToBuffer(ACG::Vec4uc _color, unsigned char *_buffer, unsigned int _offset)
Adds a color to the buffer.
Definition: VolumeMeshBufferManagerT.cc:179
ACG::GLState::pick_current_index
unsigned int pick_current_index() const
Returns the current color picking index (can be used for caching)
Definition: GLState.cc:1114
VolumeMeshBufferManager::buildVertexBuffer
void buildVertexBuffer(unsigned char *_buffer)
Adds all vertices to the buffer.
Definition: VolumeMeshBufferManagerT.cc:1046
VolumeMeshBufferManager::saveOptions
void saveOptions()
State that the current buffer was built with the current options.
Definition: VolumeMeshBufferManagerT.cc:654
VolumeMeshBufferManager::countNumOfVertices
void countNumOfVertices()
Counts the number of vertices that need to be stored in the buffer.
Definition: VolumeMeshBufferManagerT.cc:702
VolumeMeshBufferManager::calculateCellInsideness
void calculateCellInsideness()
Calculates for all cells whether they are inside w.r.t. all cut planes.
Definition: VolumeMeshBufferManagerT.cc:600
VolumeMeshBufferManager::optionsChanged
bool optionsChanged()
Tests whether the options were changed since the last time building the buffer.
Definition: VolumeMeshBufferManagerT.cc:636
VolumeMeshBufferManager::buildTexCoordBuffer
void buildTexCoordBuffer(unsigned char *_buffer)
Adds texture coordinates to the buffer.
Definition: VolumeMeshBufferManagerT.cc:1662
VolumeMeshBufferManager::addTexCoordToBuffer
void addTexCoordToBuffer(ACG::Vec2f _texCoord, unsigned char *_buffer, unsigned int _offset)
Adds a texture coordnate to the buffer.
Definition: VolumeMeshBufferManagerT.cc:240
VolumeMeshBufferManager::getNumOfVertices
unsigned int getNumOfVertices()
Returns the number of vertices stored in the buffer.
Definition: VolumeMeshBufferManagerT.cc:303
VolumeMeshBufferManager::invalidateTexCoords
void invalidateTexCoords()
Invalidates texture coordinates.
Definition: VolumeMeshBufferManagerT.cc:2025
ACG::GLState::deleteBuffers
static void deleteBuffers(GLsizei n, const GLuint *buffers)
Definition: GLState.cc:2105
ACG::GLState::bufferData
static void bufferData(GLenum target, GLsizeiptr size, const GLvoid *data, GLenum usage)
Definition: GLState.cc:2100
VolumeMeshBufferManager::addFloatToBuffer
void addFloatToBuffer(float _value, unsigned char *&_buffer)
Adds a float to the buffer.
Definition: VolumeMeshBufferManagerT.cc:121
VolumeMeshBufferManager::invalidateGeometry
void invalidateGeometry()
Invalidates geometry.
Definition: VolumeMeshBufferManagerT.cc:1989
ACG::GLState::genBuffers
static void genBuffers(GLsizei n, GLuint *buffers)
Definition: GLState.cc:2091
VolumeMeshBufferManager::colorsNeedRebuild
bool colorsNeedRebuild()
Checks whether colors need to be rebuild.
Definition: VolumeMeshBufferManagerT.cc:997
VolumeMeshBufferManager::normalsNeedRebuild
bool normalsNeedRebuild()
Checks whether normals need to be rebuild.
Definition: VolumeMeshBufferManagerT.cc:1030
VolumeMeshBufferManager::is_inside
bool is_inside(const ACG::Vec3d &_p)
Tests whether the given point is inside w.r.t. all cut planes.
Definition: VolumeMeshBufferManagerT.cc:470
VolumeMeshBufferManager::buildNormalBuffer
void buildNormalBuffer(unsigned char *_buffer)
Adds all normals to the buffer.
Definition: VolumeMeshBufferManagerT.cc:1260
VolumeMeshBufferManager::getCOG
ACG::Vec3d getCOG(OpenVolumeMesh::CellHandle _ch)
Returns the center of gravity of the given cell.
Definition: VolumeMeshBufferManagerT.cc:935