1 // Copyright (C) 2007-2022 CEA/DEN, EDF R&D, OPEN CASCADE
3 // Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
6 // This library is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU Lesser General Public
8 // License as published by the Free Software Foundation; either
9 // version 2.1 of the License, or (at your option) any later version.
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // Lesser General Public License for more details.
16 // You should have received a copy of the GNU Lesser General Public
17 // License along with this library; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
22 // File : SMDS_ElementFactory.cxx
26 #include "SMDS_ElementFactory.hxx"
28 #include "ObjectPool.hxx"
29 #include "SMDS_EdgePosition.hxx"
30 #include "SMDS_FacePosition.hxx"
31 #include "SMDS_Mesh.hxx"
32 #include "SMDS_SpacePosition.hxx"
33 #include "SMDS_VertexPosition.hxx"
37 // nb of elements allocated by SMDS_ElementChunk at once
38 const int theChunkSize = 1024;
40 const int theDefaultShapeDim = 3;
42 // classes allowing to modify parameters of SMDS_Position stored in SMDS_ElementFactory
44 struct _EdgePosition : public SMDS_EdgePosition
48 _EdgePosition( TParam* aUParam ) : myUParameter( aUParam )
49 { SMDS_EdgePosition::SetUParameter( aUParam[0]); }
50 virtual void SetUParameter(double aUparam)
51 { *myUParameter = (TParam) aUparam; SMDS_EdgePosition::SetUParameter( aUparam ); }
54 struct _FacePosition : public SMDS_FacePosition
58 _FacePosition(TParam* aParam) : myParameter( aParam )
59 { SMDS_FacePosition::SetParameters( aParam[0], aParam[1] ); }
60 virtual void SetUParameter(double aUparam)
61 { myParameter[0] = (TParam) aUparam; SMDS_FacePosition::SetUParameter( aUparam ); }
62 virtual void SetVParameter(double aVparam)
63 { myParameter[1] = (TParam) aVparam; SMDS_FacePosition::SetVParameter( aVparam ); }
64 virtual void SetParameters(double aU, double aV)
65 { myParameter[0] = aU; myParameter[1] = aV; SMDS_FacePosition::SetParameters( aU, aV ); }
69 //================================================================================
71 * \brief Create a factory of cells or nodes in a given mesh
73 //================================================================================
75 SMDS_ElementFactory::SMDS_ElementFactory( SMDS_Mesh* mesh, const bool isNodal )
76 : myIsNodal( isNodal ), myMesh( mesh ), myNbUsedElements( 0 )
80 //================================================================================
84 //================================================================================
86 SMDS_ElementFactory::~SMDS_ElementFactory()
88 myChunksWithUnused.clear();
92 //================================================================================
94 * \brief Return a number of elements in a chunk
95 * \return int - chunk size
97 //================================================================================
99 int SMDS_ElementFactory::ChunkSize()
104 //================================================================================
106 * \brief Return minimal ID of a non-used element
107 * \return smIdType - minimal element ID
109 //================================================================================
111 smIdType SMDS_ElementFactory::GetFreeID()
113 if ( myChunksWithUnused.empty() )
115 smIdType id0 = myChunks.size() * theChunkSize + 1;
116 myChunks.push_back( new SMDS_ElementChunk( this, id0 ));
118 SMDS_ElementChunk * chunk = (*myChunksWithUnused.begin());
119 return chunk->GetUnusedID();
122 //================================================================================
124 * \brief Return maximal ID of an used element
125 * \return smIdType - element ID
127 //================================================================================
129 smIdType SMDS_ElementFactory::GetMaxID()
132 TIndexRanges usedRanges;
133 for ( smIdType i = myChunks.size() - 1; i >= 0; --i )
134 if ( myChunks[i].GetUsedRanges().GetIndices( true, usedRanges ))
136 int index = usedRanges.back().second-1;
137 id = myChunks[i].Get1stID() + index;
143 //================================================================================
145 * \brief Return minimal ID of an used element
146 * \return smIdType - element ID
148 //================================================================================
150 smIdType SMDS_ElementFactory::GetMinID()
153 TIndexRanges usedRanges;
154 for ( size_t i = 0; i < myChunks.size(); ++i )
155 if ( myChunks[i].GetUsedRanges().GetIndices( true, usedRanges ))
157 int index = usedRanges[0].first;
158 id = myChunks[i].Get1stID() + index;
164 //================================================================================
166 * \brief Return an element by ID. NULL if the element with the given ID is already used
167 * \param [in] id - element ID
168 * \return SMDS_MeshElement* - element pointer
170 //================================================================================
172 SMDS_MeshElement* SMDS_ElementFactory::NewElement( const smIdType id )
174 smIdType iChunk = ( id - 1 ) / theChunkSize;
175 smIdType index = ( id - 1 ) % theChunkSize;
176 while ((smIdType) myChunks.size() <= iChunk )
178 smIdType id0 = myChunks.size() * theChunkSize + 1;
179 myChunks.push_back( new SMDS_ElementChunk( this, id0 ));
181 SMDS_MeshElement* e = myChunks[iChunk].Element( FromSmIdType<int>(index) );
183 return 0; // element with given ID already exists
185 myChunks[iChunk].UseElement( FromSmIdType<int>(index) );
188 e->myHolder = & myChunks[iChunk];
190 myMesh->setMyModified();
195 //================================================================================
197 * \brief Return an used element by ID. NULL if the element with the given ID is not yet used
198 * \param [in] id - element ID
199 * \return const SMDS_MeshElement* - element pointer
201 //================================================================================
203 const SMDS_MeshElement* SMDS_ElementFactory::FindElement( const smIdType id ) const
207 smIdType iChunk = ( id - 1 ) / theChunkSize;
208 smIdType index = ( id - 1 ) % theChunkSize;
209 if ( iChunk < (smIdType) myChunks.size() )
211 const SMDS_MeshElement* e = myChunks[iChunk].Element( FromSmIdType<int>(index) );
212 return e->IsNull() ? 0 : e;
218 //================================================================================
220 * \brief Return an SMDS ID by a Vtk one
221 * \param [in] vtkID - Vtk ID
222 * \return smIdType - SMDS ID
224 //================================================================================
226 smIdType SMDS_ElementFactory::FromVtkToSmds( vtkIdType vtkID )
228 if ( vtkID >= 0 && vtkID < (vtkIdType)mySmdsIDs.size() )
229 return mySmdsIDs[vtkID] + 1;
233 //================================================================================
235 * \brief Clear marked flag of all elements
237 //================================================================================
239 void SMDS_ElementFactory::SetAllNotMarked()
241 for ( SMDS_ElementChunk& chunk : myChunks )
242 chunk.SetAllNotMarked();
245 //================================================================================
247 * \brief Mark the element as non-used
248 * \param [in] e - element
250 //================================================================================
252 void SMDS_ElementFactory::Free( const SMDS_MeshElement* e )
254 if ( e != FindElement( e->GetID() ))
255 SALOME_Exception("SMDS_ElementFactory::Free(): element of other mesh");
257 if ( !myVtkIDs.empty() )
259 size_t id = e->GetID() - 1;
260 size_t vtkID = e->GetVtkID();
261 if ( id < myVtkIDs.size() )
263 if ( vtkID < mySmdsIDs.size() )
264 mySmdsIDs[ vtkID ] = -1;
266 e->myHolder->Free( e );
267 const_cast< SMDS_MeshElement*>( e )->myHolder = 0;
270 myMesh->setMyModified();
273 //================================================================================
275 * \brief De-allocate all elements
277 //================================================================================
279 void SMDS_ElementFactory::Clear()
281 myChunksWithUnused.clear();
282 clearVector( myChunks );
283 clearVector( myVtkIDs );
284 clearVector( mySmdsIDs );
285 myNbUsedElements = 0;
288 //================================================================================
290 * \brief Remove unused elements located not at the end of the last chunk.
291 * Minimize allocated memory
292 * \param [out] theVtkIDsNewToOld - theVtkIDsNewToOld[ new VtkID ] = old VtkID
294 //================================================================================
296 void SMDS_ElementFactory::Compact( std::vector<smIdType>& theVtkIDsNewToOld )
298 smIdType newNbCells = NbUsedElements();
299 smIdType maxCellID = GetMaxID();
300 smIdType newNbChunks = newNbCells / theChunkSize + bool ( newNbCells % theChunkSize );
302 theVtkIDsNewToOld.resize( newNbCells );
304 if ( newNbCells == 0 ) // empty mesh
306 clearVector( myChunks );
308 else if ( newNbCells == maxCellID ) // no holes
310 smIdType newID, minLastID = std::min( myVtkIDs.size(), theVtkIDsNewToOld.size() );
311 for ( newID = 0; newID < minLastID; ++newID )
312 theVtkIDsNewToOld[ newID ] = myVtkIDs[ newID ];
313 for ( ; newID < newNbCells; ++newID )
314 theVtkIDsNewToOld[ newID ] = newID;
316 else // there are holes in SMDS IDs
318 smIdType newVtkID = 0; // same as new smds ID (-1)
319 for ( smIdType oldID = 1; oldID <= maxCellID; ++oldID ) // smds IDs
321 const SMDS_MeshElement* oldElem = FindElement( oldID );
322 if ( !oldElem ) continue;
323 theVtkIDsNewToOld[ newVtkID++ ] = oldElem->GetVtkID(); // now newVtkID == new smds ID
324 if ( oldID != newVtkID )
326 const SMDS_MeshElement* newElem = FindElement( newVtkID );
328 newElem = NewElement( newVtkID );
329 if ( int shapeID = oldElem->GetShapeID() )
330 const_cast< SMDS_MeshElement* >( newElem )->setShapeID( shapeID );
331 if ( oldID > newNbCells )
336 myChunks.resize( newNbChunks );
338 myChunksWithUnused.clear();
339 if ( !myChunks.empty() && myChunks.back().GetUsedRanges().Size() > 1 )
340 myChunksWithUnused.insert( & myChunks.back() );
342 for ( size_t i = 0; i < myChunks.size(); ++i )
343 myChunks[i].Compact();
345 clearVector( myVtkIDs );
346 clearVector( mySmdsIDs );
350 //================================================================================
352 * \brief Return true if Compact() will change IDs of elements
354 //================================================================================
356 bool SMDS_ElementFactory::CompactChangePointers()
358 // there can be VTK_EMPTY_CELL's in the VTK grid as well as "holes" in SMDS numeration
359 return ( NbUsedElements() != GetMaxID() );
362 //================================================================================
364 * \brief Create a factory of nodes in a given mesh
366 //================================================================================
368 SMDS_NodeFactory::SMDS_NodeFactory( SMDS_Mesh* mesh )
369 : SMDS_ElementFactory( mesh, /*isNodal=*/true )
373 //================================================================================
377 //================================================================================
379 SMDS_NodeFactory::~SMDS_NodeFactory()
384 //================================================================================
386 * \brief Remove unused nodes located not at the end of the last chunk.
387 * Minimize allocated memory
388 * \param [out] theVtkIDsOldToNew - vector storing change of vtk IDs
390 //================================================================================
392 void SMDS_NodeFactory::Compact( std::vector<smIdType>& theVtkIDsOldToNew )
394 // IDs of VTK nodes always correspond to SMDS IDs but there can be "holes"
395 // in the chunks. So we remove holes and report relocation in theVtkIDsOldToNew:
396 // theVtkIDsOldToNew[ old VtkID ] = new VtkID
398 smIdType oldNbNodes = myMesh->GetGrid()->GetNumberOfPoints();
399 smIdType newNbNodes = NbUsedElements();
400 smIdType newNbChunks = newNbNodes / theChunkSize + bool ( newNbNodes % theChunkSize );
401 smIdType maxNodeID = GetMaxID();
403 theVtkIDsOldToNew.resize( oldNbNodes, -1 );
405 if ( newNbNodes == 0 ) // empty mesh
407 clearVector( myChunks );
409 else if ( maxNodeID > newNbNodes ) // there are holes
412 for ( size_t oldID = 0; oldID < theVtkIDsOldToNew.size(); ++oldID )
414 const SMDS_MeshElement* oldNode = FindNode( oldID+1 );
417 theVtkIDsOldToNew[ oldID ] = newID;
418 if ( oldID != newID )
420 const SMDS_MeshElement* newNode = FindElement( newID+1 );
422 newNode = NewElement( newID+1 );
423 int shapeID = oldNode->GetShapeID();
424 int shapeDim = GetShapeDim( shapeID );
425 smIdType iChunk = newID / theChunkSize;
426 myChunks[ iChunk ].SetShapeID( newNode, shapeID );
427 if ( shapeDim == 2 || shapeDim == 1 )
429 smIdType iChunkOld = oldID / theChunkSize;
430 TParam* oldPos = myChunks[ iChunkOld ].GetPositionPtr( oldNode );
431 TParam* newPos = myChunks[ iChunk ].GetPositionPtr( newNode, /*allocate=*/true );
434 newPos[0] = oldPos[0];
435 newPos[1] = oldPos[1];
438 if ( oldNode->GetID() > newNbNodes )
446 for ( smIdType i = 0; i < newNbNodes; ++i )
447 theVtkIDsOldToNew[ i ] = i;
449 myChunks.resize( newNbChunks );
451 myChunksWithUnused.clear();
452 if ( !myChunks.empty() && myChunks.back().GetUsedRanges().Size() > 1 )
453 myChunksWithUnused.insert( & myChunks.back() );
455 for ( size_t i = 0; i < myChunks.size(); ++i )
456 myChunks[i].Compact();
458 ASSERT( newNbNodes == GetMaxID() );
459 ASSERT( newNbNodes == NbUsedElements() );
462 //================================================================================
464 * \brief Return true if Compact() will change IDs of elements
466 //================================================================================
468 bool SMDS_NodeFactory::CompactChangePointers()
470 // IDs of VTK nodes always correspond to SMDS IDs but there can be "holes" in SMDS numeration
471 return ( NbUsedElements() != GetMaxID() );
474 //================================================================================
476 * \brief De-allocate all nodes
478 //================================================================================
480 void SMDS_NodeFactory::Clear()
482 SMDS_ElementFactory::Clear();
485 //================================================================================
487 * \brief Set a total number of sub-shapes in the main shape
489 //================================================================================
491 void SMDS_NodeFactory::SetNbShapes( size_t nbShapes )
493 clearVector( myShapeDim );
494 myShapeDim.resize( nbShapes+1, theDefaultShapeDim );
497 //================================================================================
499 * \brief Return a dimension of a shape
501 //================================================================================
503 int SMDS_NodeFactory::GetShapeDim( int shapeID ) const
505 return shapeID < (int)myShapeDim.size() ? myShapeDim[ shapeID ] : theDefaultShapeDim;
508 //================================================================================
510 * \brief Set a dimension of a shape
512 //================================================================================
514 void SMDS_NodeFactory::SetShapeDim( int shapeID, int dim )
516 if ( shapeID >= (int)myShapeDim.size() )
517 myShapeDim.resize( shapeID + 10, theDefaultShapeDim );
518 myShapeDim[ shapeID ] = dim;
521 //================================================================================
523 * \brief SMDS_ElementChunk constructor
524 * \param [in] factory - the factory
525 * \param [in] id0 - ID of the 1st element
527 //================================================================================
529 SMDS_ElementChunk::SMDS_ElementChunk( SMDS_ElementFactory* factory, smIdType id0 ):
530 myFactory( factory ),
533 // myMinSubID( std::numeric_limits<int>::max() ),
538 if ( myFactory->myIsNodal )
539 myElements = new SMDS_MeshNode[ theChunkSize ];
541 myElements = new SMDS_MeshCell[ theChunkSize ];
543 myUsedRanges.mySet.reserve(2);
544 mySubIDRanges.mySet.insert( _ShapeIDRange( 0, 0 ));
545 myUsedRanges.mySet.insert( _UsedRange( 0, false ));
546 myFactory->myChunksWithUnused.insert( this );
549 //================================================================================
551 * \brief SMDS_ElementChunk destructor
553 //================================================================================
555 SMDS_ElementChunk::~SMDS_ElementChunk()
557 delete [] myElements;
558 myFactory->myChunksWithUnused.erase( this );
561 //================================================================================
563 * \brief Mark an element as used
565 //================================================================================
567 void SMDS_ElementChunk::UseElement( const int index )
569 myUsedRanges.SetValue( index, true );
570 if ( myUsedRanges.Size() == 1 ) // all elements used
571 myFactory->myChunksWithUnused.erase( this );
574 //================================================================================
576 * \brief Return ID of the first non-used element
578 //================================================================================
580 smIdType SMDS_ElementChunk::GetUnusedID() const
582 TUsedRangeSet::set_iterator r = myUsedRanges.mySet.begin();
583 for ( ; r != myUsedRanges.mySet.end(); ++r )
587 return my1stID + r->my1st;
590 //================================================================================
592 * \brief Mark an element as non-used
594 //================================================================================
596 void SMDS_ElementChunk::Free( const SMDS_MeshElement* e )
598 bool hasHoles = ( myUsedRanges.Size() > 1 );
599 myUsedRanges.SetValue( Index( e ), false );
600 SetShapeID( e, 0 ); // sub-mesh must do it?
601 SetIsMarked( e, false );
603 myFactory->myChunksWithUnused.insert( this );
605 if ( myUsedRanges.Size() == 1 )
607 clearVector( myMarkedSet );
608 clearVector( myPositions );
612 //================================================================================
614 * \brief Return an SMDS ID of an element
616 //================================================================================
618 smIdType SMDS_ElementChunk::GetID( const SMDS_MeshElement* e ) const
620 return my1stID + Index( e );
623 //================================================================================
625 * \brief Set a Vtk ID of an element
627 //================================================================================
629 void SMDS_ElementChunk::SetVTKID( const SMDS_MeshElement* e, const vtkIdType vtkID )
631 if ( e->GetID() - 1 != vtkID )
633 if ((smIdType) myFactory->myVtkIDs.size() <= e->GetID() - 1 )
635 vtkIdType i = (vtkIdType) myFactory->myVtkIDs.size();
636 myFactory->myVtkIDs.resize( e->GetID() + 100 );
637 vtkIdType newSize = (vtkIdType) myFactory->myVtkIDs.size();
638 for ( ; i < newSize; ++i )
639 myFactory->myVtkIDs[i] = i;
641 myFactory->myVtkIDs[ e->GetID() - 1 ] = vtkID;
643 if ((vtkIdType) myFactory->mySmdsIDs.size() <= vtkID )
645 size_t i = myFactory->mySmdsIDs.size();
646 myFactory->mySmdsIDs.resize( vtkID + 100 );
647 for ( ; i < myFactory->mySmdsIDs.size(); ++i )
648 myFactory->mySmdsIDs[i] = i;
650 myFactory->mySmdsIDs[ vtkID ] = e->GetID() - 1;
654 if ((size_t) e->GetID() <= myFactory->myVtkIDs.size() )
655 myFactory->myVtkIDs[ e->GetID() - 1 ] = vtkID;
656 if ((size_t) vtkID < myFactory->mySmdsIDs.size() )
657 myFactory->mySmdsIDs[ vtkID ] = e->GetID() - 1;
661 //================================================================================
663 * \brief Return a Vtk ID of an element
665 //================================================================================
667 vtkIdType SMDS_ElementChunk::GetVtkID( const SMDS_MeshElement* e ) const
669 vtkIdType dfltVtkID = FromSmIdType<vtkIdType>(e->GetID() - 1);
670 return ( dfltVtkID < (vtkIdType)myFactory->myVtkIDs.size() ) ? myFactory->myVtkIDs[ dfltVtkID ] : dfltVtkID;
673 //================================================================================
675 * \brief Return ID of a shape an element is assigned to
677 //================================================================================
679 int SMDS_ElementChunk::GetShapeID( const SMDS_MeshElement* e ) const
681 return mySubIDRanges.GetValue( Index( e ));
684 //================================================================================
686 * \brief Set ID of a shape an element is assigned to
688 //================================================================================
690 void SMDS_ElementChunk::SetShapeID( const SMDS_MeshElement* e, int shapeID ) const
692 //const size_t nbRanges = mySubIDRanges.Size();
694 SMDS_ElementChunk* me = const_cast<SMDS_ElementChunk*>( this );
695 int oldShapeID = me->mySubIDRanges.SetValue( Index( e ), shapeID );
696 if ( oldShapeID == shapeID ) return;
698 if ( const SMDS_MeshNode* n = dynamic_cast< const SMDS_MeshNode* >( e ))
699 if ( TParam* uv = me->GetPositionPtr( n ))
705 // if (( nbRanges > mySubIDRanges.Size() ) &&
706 // ( myMinSubID == oldShapeID || myMaxSubID == oldShapeID ))
708 // me->myMinSubID = ( std::numeric_limits<int>::max() );
709 // me->myMaxSubID = 0;
710 // TSubIDRangeSet::set_iterator it;
711 // for ( it = mySubIDRanges.mySet.begin(); it < mySubIDRanges.mySet.end(); ++it )
712 // if ( it->myValue > 0 )
714 // me->myMinSubID = std::min( myMinSubID, it->myValue );
715 // me->myMaxSubID = std::max( myMaxSubID, it->myValue );
718 // else if ( shapeID > 0 )
720 // me->myMinSubID = std::min( myMinSubID, shapeID );
721 // me->myMaxSubID = std::max( myMaxSubID, shapeID );
725 //================================================================================
727 * \brief Set isMarked flag of an element
729 //================================================================================
731 bool SMDS_ElementChunk::IsMarked( const SMDS_MeshElement* e ) const
733 return ( !myMarkedSet.empty() && myMarkedSet[ Index( e )]);
736 //================================================================================
738 * \brief Return isMarked flag of an element
740 //================================================================================
742 void SMDS_ElementChunk::SetIsMarked( const SMDS_MeshElement* e, bool is )
744 if ( !is && myMarkedSet.empty() ) return;
745 if ( myMarkedSet.empty() ) myMarkedSet.resize( theChunkSize, false );
746 myMarkedSet[ Index( e )] = is;
749 //================================================================================
751 * \brief Clear marked flag of all elements
753 //================================================================================
755 void SMDS_ElementChunk::SetAllNotMarked()
757 clearVector( myMarkedSet );
760 //================================================================================
762 * \brief Return SMDS_Position of a node on a shape
764 //================================================================================
766 SMDS_PositionPtr SMDS_ElementChunk::GetPosition( const SMDS_MeshNode* n ) const
768 int shapeID = GetShapeID( n );
769 int shapeDim = static_cast< SMDS_NodeFactory* >( myFactory )->GetShapeDim( shapeID );
771 SMDS_ElementChunk* me = const_cast< SMDS_ElementChunk* >( this );
773 switch ( shapeDim ) {
776 return SMDS_PositionPtr( new _FacePosition( me->GetPositionPtr( n )));
780 return SMDS_PositionPtr( new _EdgePosition( me->GetPositionPtr( n )));
783 return SMDS_VertexPosition::StaticPosition();
786 return SMDS_SpacePosition::originSpacePosition();
789 //================================================================================
791 * \brief Set SMDS_Position of a node on a shape
793 //================================================================================
795 void SMDS_ElementChunk::SetPosition( const SMDS_MeshNode* n, const SMDS_PositionPtr& pos, int shapeID )
797 int shapeDim = pos ? pos->GetDim() : theDefaultShapeDim;
800 if ( shapeDim == theDefaultShapeDim )
802 shapeID = GetShapeID( n );
804 throw SALOME_Exception("SetPosition() No shape ID provided");
807 static_cast< SMDS_NodeFactory* >( myFactory )->SetShapeDim( shapeID, shapeDim );
809 switch ( shapeDim ) {
812 TParam* uv = GetPositionPtr( n, /*allocate=*/true );
813 uv[0] = (TParam) pos->GetParameters()[0];
814 uv[1] = (TParam) pos->GetParameters()[1];
819 GetPositionPtr( n, /*allocate=*/true )[0] = (TParam) pos->GetParameters()[0];
825 //================================================================================
827 * \brief Return pointer to on-shape-parameters of a node
829 //================================================================================
831 TParam* SMDS_ElementChunk::GetPositionPtr( const SMDS_MeshElement* n, bool allocate )
833 if ( myPositions.empty() && !allocate )
836 myPositions.resize( theChunkSize * 2 );
837 return myPositions.data() + 2 * Index( n );
840 //================================================================================
842 * \brief Minimize allocated memory
844 //================================================================================
846 void SMDS_ElementChunk::Compact()
848 mySubIDRanges.mySet.shrink_to_fit();
849 if ( myUsedRanges.mySet.capacity() > 2 )
850 myUsedRanges.mySet.shrink_to_fit();
852 clearVector( myMarkedSet );
854 if ( !myPositions.empty() )
856 // look for the last position that must be kept
857 TSubIDRangeSet::set_t::reverse_iterator it;
858 for ( it = mySubIDRanges.mySet.rbegin(); it != mySubIDRanges.mySet.rend(); ++it )
860 int shapeDim = static_cast< SMDS_NodeFactory* >( myFactory )->GetShapeDim( it->myValue );
861 if ( shapeDim == 1 || shapeDim == 2 )
864 if ( it == mySubIDRanges.mySet.rend() )
866 clearVector( myPositions );
868 else if ( it != mySubIDRanges.mySet.rbegin() )
870 int nbNodes = (it-1)->my1st;
871 myPositions.resize( nbNodes * 2 );
872 std::vector<TParam> newPos( myPositions.begin(), myPositions.end() );
873 myPositions.swap( newPos );
878 //================================================================================
880 * \brief Print some data for debug purposes
882 //================================================================================
884 void SMDS_ElementChunk::Dump() const
886 std::cout << "1stID: " << my1stID << std::endl;
888 //std::cout << "SubID min/max: " << myMinSubID << ", " << myMaxSubID << std::endl;
889 std::cout << "SubIDRanges: " << mySubIDRanges.Size() << " ";
891 TSubIDRangeSet::set_iterator i = mySubIDRanges.mySet.begin();
892 for ( int cnt = 0; i != mySubIDRanges.mySet.end(); ++i, ++cnt )
893 std::cout << "|" << cnt << " - (" << i->my1st << ", " << i->myValue << ") ";
894 std::cout << std::endl;
897 std::cout << "UsedRanges: " << myUsedRanges.Size() << " ";
898 TUsedRangeSet::set_iterator i = myUsedRanges.mySet.begin();
899 for ( int cnt = 0; i != myUsedRanges.mySet.end(); ++i, ++cnt )
900 std::cout << cnt << " - (" << i->my1st << ", " << i->myValue << ") ";
901 std::cout << std::endl;
905 //================================================================================
907 * \brief Compare SMDS_ElementChunk's
909 //================================================================================
911 bool _ChunkCompare::operator () (const SMDS_ElementChunk* e1, const SMDS_ElementChunk* e2) const
913 return e1->Get1stID() < e2->Get1stID();