1 // Copyright (C) 2007-2013 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.
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
23 // SMESH SMESH : implementaion of SMESH idl descriptions
24 // File : StdMeshers_Import_1D.cxx
27 #include "StdMeshers_Import_1D.hxx"
28 #include "StdMeshers_ImportSource.hxx"
30 #include "SMDS_MeshElement.hxx"
31 #include "SMDS_MeshNode.hxx"
32 #include "SMESHDS_Group.hxx"
33 #include "SMESHDS_Mesh.hxx"
34 #include "SMESH_Comment.hxx"
35 #include "SMESH_Gen.hxx"
36 #include "SMESH_Group.hxx"
37 #include "SMESH_HypoFilter.hxx"
38 #include "SMESH_Mesh.hxx"
39 #include "SMESH_MesherHelper.hxx"
40 #include "SMESH_subMesh.hxx"
41 #include "SMESH_subMeshEventListener.hxx"
43 #include "Utils_SALOME_Exception.hxx"
44 #include "utilities.h"
46 #include <BRep_Builder.hxx>
47 #include <BRep_Tool.hxx>
49 #include <TopExp_Explorer.hxx>
51 #include <TopoDS_Compound.hxx>
52 #include <TopoDS_Edge.hxx>
53 #include <TopoDS_Vertex.hxx>
57 //=============================================================================
59 * Creates StdMeshers_Import_1D
61 //=============================================================================
63 StdMeshers_Import_1D::StdMeshers_Import_1D(int hypId, int studyId, SMESH_Gen * gen)
64 :SMESH_1D_Algo(hypId, studyId, gen), _sourceHyp(0)
66 MESSAGE("StdMeshers_Import_1D::StdMeshers_Import_1D");
68 _shapeType = (1 << TopAbs_EDGE);
70 _compatibleHypothesis.push_back("ImportSource1D");
73 //=============================================================================
75 * Check presence of a hypothesis
77 //=============================================================================
79 bool StdMeshers_Import_1D::CheckHypothesis
81 const TopoDS_Shape& aShape,
82 SMESH_Hypothesis::Hypothesis_Status& aStatus)
86 const list <const SMESHDS_Hypothesis * >&hyps = GetUsedHypothesis(aMesh, aShape);
87 if ( hyps.size() == 0 )
89 aStatus = SMESH_Hypothesis::HYP_MISSING;
90 return false; // can't work with no hypothesis
93 if ( hyps.size() > 1 )
95 aStatus = SMESH_Hypothesis::HYP_ALREADY_EXIST;
99 const SMESHDS_Hypothesis *theHyp = hyps.front();
101 string hypName = theHyp->GetName();
103 if (hypName == _compatibleHypothesis.front())
105 _sourceHyp = (StdMeshers_ImportSource1D *)theHyp;
106 aStatus = SMESH_Hypothesis::HYP_OK;
110 aStatus = SMESH_Hypothesis::HYP_INCOMPATIBLE;
114 //================================================================================
115 namespace // INTERNAL STUFF
116 //================================================================================
118 int getSubmeshIDForCopiedMesh(const SMESHDS_Mesh* srcMeshDS, SMESH_Mesh* tgtMesh);
120 enum _ListenerDataType
122 WAIT_HYP_MODIF=1, // data indicating awaiting for valid parameters of src hyp
123 LISTEN_SRC_MESH, // data storing submesh depending on source mesh state
124 SRC_HYP // data storing ImportSource hyp
126 //================================================================================
128 * \brief _ListenerData holding ImportSource hyp holding in its turn
131 struct _ListenerData : public SMESH_subMeshEventListenerData
133 const StdMeshers_ImportSource1D* _srcHyp;
134 _ListenerData(const StdMeshers_ImportSource1D* h, _ListenerDataType type=SRC_HYP):
135 SMESH_subMeshEventListenerData(/*isDeletable=*/true), _srcHyp(h)
140 //================================================================================
142 * \brief Comparator of sub-meshes
146 bool operator()(const SMESH_subMesh* sm1, const SMESH_subMesh* sm2 ) const
148 if ( sm1 == sm2 ) return false;
149 if ( !sm1 || !sm2 ) return sm1 < sm2;
150 const TopoDS_Shape& s1 = sm1->GetSubShape();
151 const TopoDS_Shape& s2 = sm2->GetSubShape();
152 TopAbs_ShapeEnum t1 = s1.IsNull() ? TopAbs_SHAPE : s1.ShapeType();
153 TopAbs_ShapeEnum t2 = s2.IsNull() ? TopAbs_SHAPE : s2.ShapeType();
156 return t1 < t2; // to have: face < edge
159 //================================================================================
161 * \brief Container of data dedicated to one source mesh
165 const SMESH_Mesh* _srcMesh;
166 StdMeshers_Import_1D::TNodeNodeMap _n2n;
167 StdMeshers_Import_1D::TElemElemMap _e2e;
169 set< SMESH_subMesh*, _SubLess > _subM; // submeshes relating to this srcMesh
170 set< SMESH_subMesh*, _SubLess > _copyMeshSubM; // submeshes requesting mesh copying
171 set< SMESH_subMesh*, _SubLess > _copyGroupSubM; // submeshes requesting group copying
172 set< SMESH_subMesh*, _SubLess > _computedSubM;
174 SMESHDS_SubMesh* _importMeshSubDS; // submesh storing a copy of _srcMesh
175 int _importMeshSubID; // id of _importMeshSubDS
177 _ImportData(const SMESH_Mesh* srcMesh=0):
178 _srcMesh(srcMesh), _importMeshSubDS(0),_importMeshSubID(-1) {}
180 void removeImportedMesh( SMESHDS_Mesh* meshDS )
182 if ( !_importMeshSubDS ) return;
183 SMDS_ElemIteratorPtr eIt = _importMeshSubDS->GetElements();
184 while ( eIt->more() )
185 meshDS->RemoveFreeElement( eIt->next(), 0, /*fromGroups=*/false );
186 SMDS_NodeIteratorPtr nIt = _importMeshSubDS->GetNodes();
187 while ( nIt->more() )
188 meshDS->RemoveFreeNode( nIt->next(), 0, /*fromGroups=*/false );
189 _importMeshSubDS->Clear();
193 void removeGroups( SMESH_subMesh* subM, const StdMeshers_ImportSource1D* srcHyp )
195 if ( !srcHyp ) return;
196 SMESH_Mesh* tgtMesh = subM->GetFather();
197 const SMESHDS_Mesh* tgtMeshDS = tgtMesh->GetMeshDS();
198 const SMESHDS_Mesh* srcMeshDS = _srcMesh->GetMeshDS();
199 vector<SMESH_Group*>* groups =
200 const_cast<StdMeshers_ImportSource1D*>(srcHyp)->GetResultGroups(*srcMeshDS,*tgtMeshDS);
203 for ( unsigned i = 0; i < groups->size(); ++i )
204 tgtMesh->RemoveGroup( groups->at(i)->GetGroupDS()->GetID() );
208 void trackHypParams( SMESH_subMesh* sm, const StdMeshers_ImportSource1D* srcHyp )
210 if ( !srcHyp ) return;
211 bool toCopyMesh, toCopyGroups;
212 srcHyp->GetCopySourceMesh(toCopyMesh, toCopyGroups);
214 if ( toCopyMesh )_copyMeshSubM.insert( sm );
215 else _copyMeshSubM.erase( sm );
217 if ( toCopyGroups ) _copyGroupSubM.insert( sm );
218 else _copyGroupSubM.erase( sm );
220 void addComputed( SMESH_subMesh* sm )
222 SMESH_subMeshIteratorPtr smIt = sm->getDependsOnIterator(/*includeSelf=*/true,
223 /*complexShapeFirst=*/true);
224 while ( smIt->more() )
227 switch ( sm->GetSubShape().ShapeType() )
232 if ( !sm->IsEmpty() )
233 _computedSubM.insert( sm );
241 //================================================================================
243 * Listener notified on events relating to imported submesh
245 class _Listener : public SMESH_subMeshEventListener
247 typedef map< SMESH_Mesh*, list< _ImportData > > TMesh2ImpData;
248 TMesh2ImpData _tgtMesh2ImportData;
250 _Listener():SMESH_subMeshEventListener(/*isDeletable=*/false,
251 "StdMeshers_Import_1D::_Listener") {}
254 // return poiter to a static listener
255 static _Listener* get() { static _Listener theListener; return &theListener; }
257 static _ImportData* getImportData(const SMESH_Mesh* srcMesh, SMESH_Mesh* tgtMesh);
259 static void storeImportSubmesh(SMESH_subMesh* importSub,
260 const SMESH_Mesh* srcMesh,
261 const StdMeshers_ImportSource1D* srcHyp);
263 virtual void ProcessEvent(const int event,
265 SMESH_subMesh* subMesh,
266 SMESH_subMeshEventListenerData* data,
267 const SMESH_Hypothesis* hyp);
268 void removeSubmesh( SMESH_subMesh* sm, _ListenerData* data );
269 void clearSubmesh ( SMESH_subMesh* sm, _ListenerData* data, bool clearAllSub );
270 void clearN2N ( SMESH_Mesh* tgtMesh );
272 // mark sm as missing src hyp with valid groups
273 static void waitHypModification(SMESH_subMesh* sm)
276 (get(), SMESH_subMeshEventListenerData::MakeData( sm, WAIT_HYP_MODIF ), sm);
279 //--------------------------------------------------------------------------------
281 * \brief Find or create ImportData for given meshes
283 _ImportData* _Listener::getImportData(const SMESH_Mesh* srcMesh,
286 list< _ImportData >& dList = get()->_tgtMesh2ImportData[tgtMesh];
287 list< _ImportData >::iterator d = dList.begin();
288 for ( ; d != dList.end(); ++d )
289 if ( d->_srcMesh == srcMesh )
291 dList.push_back(_ImportData(srcMesh));
292 return &dList.back();
295 //--------------------------------------------------------------------------------
297 * \brief Remember an imported sub-mesh and set needed even listeners
298 * \param importSub - submesh computed by Import algo
299 * \param srcMesh - source mesh
300 * \param srcHyp - ImportSource hypothesis
302 void _Listener::storeImportSubmesh(SMESH_subMesh* importSub,
303 const SMESH_Mesh* srcMesh,
304 const StdMeshers_ImportSource1D* srcHyp)
306 // set listener to hear events of the submesh computed by "Import" algo
307 importSub->SetEventListener( get(), new _ListenerData(srcHyp), importSub );
309 // set listeners to hear events of the source mesh
310 SMESH_subMesh* smToNotify = importSub;
311 vector<SMESH_subMesh*> smToListen = srcHyp->GetSourceSubMeshes( srcMesh );
312 for ( size_t i = 0; i < smToListen.size(); ++i )
314 SMESH_subMeshEventListenerData* data = new _ListenerData(srcHyp, LISTEN_SRC_MESH);
315 data->mySubMeshes.push_back( smToNotify );
316 importSub->SetEventListener( get(), data, smToListen[i] );
318 // remember the submesh importSub and its sub-submeshes
319 _ImportData* iData = _Listener::getImportData( srcMesh, importSub->GetFather());
320 iData->trackHypParams( importSub, srcHyp );
321 iData->addComputed( importSub );
322 if ( !iData->_copyMeshSubM.empty() && iData->_importMeshSubID < 1 )
324 SMESH_Mesh* tgtMesh = importSub->GetFather();
325 iData->_importMeshSubID = getSubmeshIDForCopiedMesh( srcMesh->GetMeshDS(),tgtMesh);
326 iData->_importMeshSubDS = tgtMesh->GetMeshDS()->NewSubMesh( iData->_importMeshSubID );
329 //--------------------------------------------------------------------------------
331 * \brief Remove imported mesh and/or groups if needed
332 * \param sm - submesh loosing Import algo
333 * \param data - data holding imported groups
335 void _Listener::removeSubmesh( SMESH_subMesh* sm, _ListenerData* data )
337 list< _ImportData > & dList = _tgtMesh2ImportData[ sm->GetFather() ];
338 list< _ImportData >::iterator d = dList.begin();
339 for ( ; d != dList.end(); ++d )
340 if ( (*d)._subM.erase( sm ))
342 d->_computedSubM.erase( sm );
343 bool rmMesh = d->_copyMeshSubM.erase( sm ) && d->_copyMeshSubM.empty();
344 bool rmGroups = (d->_copyGroupSubM.erase( sm ) && d->_copyGroupSubM.empty()) || rmMesh;
346 d->removeImportedMesh( sm->GetFather()->GetMeshDS() );
347 if ( rmGroups && data )
348 d->removeGroups( sm, data->_srcHyp );
351 //--------------------------------------------------------------------------------
353 * \brief Clear _ImportData::_n2n.
354 * _n2n is usefull within one mesh.Compute() only
356 void _Listener::clearN2N( SMESH_Mesh* tgtMesh )
358 list< _ImportData >& dList = get()->_tgtMesh2ImportData[tgtMesh];
359 list< _ImportData >::iterator d = dList.begin();
360 for ( ; d != dList.end(); ++d )
363 //--------------------------------------------------------------------------------
365 * \brief Clear submeshes and remove imported mesh and/or groups if necessary
366 * \param sm - cleared submesh
367 * \param data - data holding imported groups
369 void _Listener::clearSubmesh(SMESH_subMesh* sm, _ListenerData* data, bool clearAllSub)
371 list< _ImportData > & dList = _tgtMesh2ImportData[ sm->GetFather() ];
372 list< _ImportData >::iterator d = dList.begin();
373 for ( ; d != dList.end(); ++d )
375 if ( !d->_subM.count( sm )) continue;
376 if ( (*d)._computedSubM.erase( sm ) )
378 bool copyMesh = !d->_copyMeshSubM.empty();
379 if ( copyMesh || clearAllSub )
381 // remove imported mesh and groups
382 d->removeImportedMesh( sm->GetFather()->GetMeshDS() );
385 d->removeGroups( sm, data->_srcHyp );
387 // clear the rest submeshes
388 if ( !d->_computedSubM.empty() )
390 d->_computedSubM.clear();
391 set< SMESH_subMesh*, _SubLess>::iterator sub = d->_subM.begin();
392 for ( ; sub != d->_subM.end(); ++sub )
394 SMESH_subMesh* subM = *sub;
395 _ListenerData* hypData = (_ListenerData*) subM->GetEventListenerData( get() );
397 d->removeGroups( sm, hypData->_srcHyp );
399 subM->ComputeStateEngine( SMESH_subMesh::CLEAN );
400 if ( subM->GetSubShape().ShapeType() == TopAbs_FACE )
401 subM->ComputeSubMeshStateEngine( SMESH_subMesh::CLEAN );
405 sm->ComputeStateEngine( SMESH_subMesh::CLEAN );
406 if ( sm->GetSubShape().ShapeType() == TopAbs_FACE )
407 sm->ComputeSubMeshStateEngine( SMESH_subMesh::CLEAN );
410 d->trackHypParams( sm, data->_srcHyp );
415 //--------------------------------------------------------------------------------
417 * \brief Remove imported mesh and/or groups
419 void _Listener::ProcessEvent(const int event,
421 SMESH_subMesh* subMesh,
422 SMESH_subMeshEventListenerData* data,
423 const SMESH_Hypothesis* /*hyp*/)
425 if ( data && data->myType == WAIT_HYP_MODIF )
427 // event of Import submesh
428 if ( SMESH_subMesh::MODIF_HYP == event &&
429 SMESH_subMesh::ALGO_EVENT == eventType )
431 // re-call SetEventListener() to take into account valid parameters
432 // of ImportSource hypothesis
433 if ( SMESH_Algo* algo = subMesh->GetAlgo() )
434 algo->SetEventListener( subMesh );
437 else if ( data && data->myType == LISTEN_SRC_MESH )
439 // event of source mesh
440 if ( SMESH_subMesh::COMPUTE_EVENT == eventType )
443 case SMESH_subMesh::CLEAN:
444 // source mesh cleaned -> clean target mesh
445 clearSubmesh( data->mySubMeshes.front(), (_ListenerData*) data, /*all=*/true );
447 case SMESH_subMesh::SUBMESH_COMPUTED: {
448 // source mesh computed -> reset FAILED state of Import submeshes to
450 SMESH_Mesh* srcMesh = subMesh->GetFather();
451 if ( srcMesh->NbEdges() > 0 || srcMesh->NbFaces() > 0 )
453 SMESH_Mesh* m = data->mySubMeshes.front()->GetFather();
454 if ( SMESH_subMesh* sm1 = m->GetSubMeshContaining(1))
456 sm1->ComputeStateEngine(SMESH_subMesh::SUBMESH_COMPUTED );
457 sm1->ComputeSubMeshStateEngine( SMESH_subMesh::SUBMESH_COMPUTED );
465 if ( !data->mySubMeshes.empty() )
466 clearN2N( data->mySubMeshes.front()->GetFather() );
468 else // event of Import submesh
470 // find out what happens: import hyp modified or removed
471 bool removeImport = false, modifHyp = false;
472 if ( SMESH_subMesh::ALGO_EVENT == eventType )
474 if ( subMesh->GetAlgoState() != SMESH_subMesh::HYP_OK )
478 else if (( SMESH_subMesh::REMOVE_ALGO == event ||
479 SMESH_subMesh::REMOVE_FATHER_ALGO == event ) &&
480 SMESH_subMesh::ALGO_EVENT == eventType )
482 SMESH_Algo* algo = subMesh->GetAlgo();
483 removeImport = ( strncmp( "Import", algo->GetName(), 6 ) != 0 );
488 // treate removal of Import algo from subMesh
489 removeSubmesh( subMesh, (_ListenerData*) data );
491 else if ( modifHyp ||
492 ( SMESH_subMesh::CLEAN == event &&
493 SMESH_subMesh::COMPUTE_EVENT == eventType))
495 // treate modification of ImportSource hypothesis
496 clearSubmesh( subMesh, (_ListenerData*) data, /*all=*/false );
498 else if ( SMESH_subMesh::CHECK_COMPUTE_STATE == event &&
499 SMESH_subMesh::COMPUTE_EVENT == eventType )
501 // check compute state of all submeshes impoting from same src mesh;
502 // this is to take into account 1D computed submeshes hidden by 2D import algo;
503 // else source mesh is not copied as _subM.size != _computedSubM.size()
504 list< _ImportData > & dList = _tgtMesh2ImportData[ subMesh->GetFather() ];
505 list< _ImportData >::iterator d = dList.begin();
506 for ( ; d != dList.end(); ++d )
507 if ( d->_subM.count( subMesh ))
509 set<SMESH_subMesh*,_SubLess>::iterator smIt = d->_subM.begin();
510 for( ; smIt != d->_subM.end(); ++smIt )
511 if ( (*smIt)->IsMeshComputed() )
512 d->_computedSubM.insert( *smIt);
515 // Clear _ImportData::_n2n if it's no more useful, i.e. when
516 // the event is not within mesh.Compute()
517 if ( SMESH_subMesh::ALGO_EVENT == eventType )
518 clearN2N( subMesh->GetFather() );
522 //================================================================================
524 * \brief Return an ID of submesh to store nodes and elements of a copied mesh
526 //================================================================================
528 int getSubmeshIDForCopiedMesh(const SMESHDS_Mesh* srcMeshDS,
531 // To get SMESH_subMesh corresponding to srcMeshDS we need to have a shape
532 // for which SMESHDS_Mesh::IsGroupOfSubShapes() returns true.
533 // And this shape must be different from sub-shapes of the main shape.
534 // So we create a compound containing
535 // 1) some sub-shapes of SMESH_Mesh::PseudoShape() corresponding to
536 // srcMeshDS->GetPersistentId()
537 // 2) the 1-st vertex of the main shape to assure
538 // SMESHDS_Mesh::IsGroupOfSubShapes(shape)==true
539 TopoDS_Shape shapeForSrcMesh;
540 TopTools_IndexedMapOfShape pseudoSubShapes;
541 TopExp::MapShapes( SMESH_Mesh::PseudoShape(), pseudoSubShapes );
543 // index of pseudoSubShapes corresponding to srcMeshDS
544 int subIndex = 1 + srcMeshDS->GetPersistentId() % pseudoSubShapes.Extent();
545 int nbSubShapes = 1 + srcMeshDS->GetPersistentId() / pseudoSubShapes.Extent();
547 // try to find already present shapeForSrcMesh
548 SMESHDS_Mesh* tgtMeshDS = tgtMesh->GetMeshDS();
549 for ( int i = tgtMeshDS->MaxShapeIndex(); i > 0 && shapeForSrcMesh.IsNull(); --i )
551 const TopoDS_Shape& s = tgtMeshDS->IndexToShape(i);
552 if ( s.ShapeType() != TopAbs_COMPOUND ) break;
553 TopoDS_Iterator sSubIt( s );
554 for ( int iSub = 0; iSub < nbSubShapes && sSubIt.More(); ++iSub, sSubIt.Next() )
555 if ( pseudoSubShapes( subIndex+iSub ).IsSame( sSubIt.Value()))
556 if ( iSub+1 == nbSubShapes )
562 if ( shapeForSrcMesh.IsNull() )
564 // make a new shapeForSrcMesh
565 BRep_Builder aBuilder;
566 TopoDS_Compound comp;
567 aBuilder.MakeCompound( comp );
568 shapeForSrcMesh = comp;
569 for ( int iSub = 0; iSub < nbSubShapes; ++iSub )
570 aBuilder.Add( comp, pseudoSubShapes( subIndex+iSub ));
571 TopExp_Explorer vExp( tgtMeshDS->ShapeToMesh(), TopAbs_VERTEX );
572 aBuilder.Add( comp, vExp.Current() );
574 SMESH_subMesh* sm = tgtMesh->GetSubMesh( shapeForSrcMesh );
575 SMESHDS_SubMesh* smDS = sm->GetSubMeshDS();
577 smDS = tgtMeshDS->NewSubMesh( sm->GetId() );
579 // make ordinary submesh from a complex one
580 if ( smDS->IsComplexSubmesh() )
582 list< const SMESHDS_SubMesh* > subSM;
583 SMESHDS_SubMeshIteratorPtr smIt = smDS->GetSubMeshIterator();
584 while ( smIt->more() ) subSM.push_back( smIt->next() );
585 list< const SMESHDS_SubMesh* >::iterator sub = subSM.begin();
586 for ( ; sub != subSM.end(); ++sub)
587 smDS->RemoveSubMesh( *sub );
592 //================================================================================
594 * \brief Return a submesh to store nodes and elements of a copied mesh
595 * and set event listeners in order to clear
596 * imported mesh and groups as soon as submesh state requires it
598 //================================================================================
600 SMESHDS_SubMesh* getSubmeshForCopiedMesh(const SMESH_Mesh* srcMesh,
602 const TopoDS_Shape& tgtShape,
603 StdMeshers_Import_1D::TNodeNodeMap*& n2n,
604 StdMeshers_Import_1D::TElemElemMap*& e2e,
607 StdMeshers_Import_1D::getMaps( srcMesh, tgtMesh, n2n,e2e );
609 _ImportData* iData = _Listener::getImportData(srcMesh,tgtMesh);
611 SMESH_subMesh* importedSM = tgtMesh->GetSubMesh( tgtShape );
612 iData->addComputed( importedSM );
613 if ( iData->_computedSubM.size() != iData->_subM.size() )
614 return 0; // not all submeshes computed yet
616 toCopyGroups = !iData->_copyGroupSubM.empty();
618 if ( !iData->_copyMeshSubM.empty())
620 // make submesh to store a copied mesh
621 int smID = getSubmeshIDForCopiedMesh( srcMesh->GetMeshDS(), tgtMesh );
622 SMESHDS_SubMesh* subDS = tgtMesh->GetMeshDS()->NewSubMesh( smID );
624 iData->_importMeshSubID = smID;
625 iData->_importMeshSubDS = subDS;
634 //=============================================================================
636 * Import elements from the other mesh
638 //=============================================================================
640 bool StdMeshers_Import_1D::Compute(SMESH_Mesh & theMesh, const TopoDS_Shape & theShape)
642 if ( !_sourceHyp ) return false;
644 //MESSAGE("---------> StdMeshers_Import_1D::Compute");
645 const vector<SMESH_Group*>& srcGroups = _sourceHyp->GetGroups(/*loaded=*/true);
646 if ( srcGroups.empty() )
647 return error("Invalid source groups");
649 SMESH_MesherHelper helper(theMesh);
650 helper.SetSubShape(theShape);
651 SMESHDS_Mesh* tgtMesh = theMesh.GetMeshDS();
653 const TopoDS_Edge& geomEdge = TopoDS::Edge( theShape );
654 const double edgeTol = BRep_Tool::Tolerance( geomEdge );
655 const int shapeID = tgtMesh->ShapeToIndex( geomEdge );
657 set<int> subShapeIDs;
658 subShapeIDs.insert( shapeID );
660 // get nodes on vertices
661 list < SMESH_TNodeXYZ > vertexNodes;
662 list < SMESH_TNodeXYZ >::iterator vNIt;
663 TopExp_Explorer vExp( theShape, TopAbs_VERTEX );
664 for ( ; vExp.More(); vExp.Next() )
666 const TopoDS_Vertex& v = TopoDS::Vertex( vExp.Current() );
667 if ( !subShapeIDs.insert( tgtMesh->ShapeToIndex( v )).second )
668 continue; // closed edge
669 const SMDS_MeshNode* n = SMESH_Algo::VertexNode( v, tgtMesh );
672 _gen->Compute(theMesh,v,/*anUpward=*/true);
673 n = SMESH_Algo::VertexNode( v, tgtMesh );
674 //MESSAGE("_gen->Compute " << n);
675 if ( !n ) return false; // very strange
677 vertexNodes.push_back( SMESH_TNodeXYZ( n ));
678 //MESSAGE("SMESH_Algo::VertexNode " << n->GetID() << " " << n->X() << " " << n->Y() << " " << n->Z() );
681 // import edges from groups
684 for ( int iG = 0; iG < srcGroups.size(); ++iG )
686 const SMESHDS_GroupBase* srcGroup = srcGroups[iG]->GetGroupDS();
688 const int meshID = srcGroup->GetMesh()->GetPersistentId();
689 const SMESH_Mesh* srcMesh = GetMeshByPersistentID( meshID );
690 if ( !srcMesh ) continue;
691 getMaps( srcMesh, &theMesh, n2n, e2e );
693 SMDS_ElemIteratorPtr srcElems = srcGroup->GetElements();
694 vector<const SMDS_MeshNode*> newNodes;
695 SMDS_MeshNode *tmpNode = helper.AddNode(0,0,0);
696 double u = 0.314159; // "random" value between 0 and 1, avoid 0 and 1, false detection possible on edge restrictions
697 while ( srcElems->more() ) // loop on group contents
699 const SMDS_MeshElement* edge = srcElems->next();
700 // find or create nodes of a new edge
701 newNodes.resize( edge->NbNodes() );
702 //MESSAGE("edge->NbNodes " << edge->NbNodes());
704 SMDS_MeshElement::iterator node = edge->begin_nodes();
705 SMESH_TNodeXYZ a(edge->GetNode(0));
706 // --- define a tolerance relative to the length of an edge
707 double mytol = a.Distance(edge->GetNode(edge->NbNodes()-1))/25;
708 //mytol = max(1.E-5, 10*edgeTol); // too strict and not necessary
709 //MESSAGE("mytol = " << mytol);
710 for ( unsigned i = 0; i < newNodes.size(); ++i, ++node )
712 TNodeNodeMap::iterator n2nIt = n2n->insert( make_pair( *node, (SMDS_MeshNode*)0 )).first;
715 if ( !subShapeIDs.count( n2nIt->second->getshapeId() ))
720 // find an existing vertex node
721 double checktol = max(1.E-10, 10*edgeTol*edgeTol);
722 for ( vNIt = vertexNodes.begin(); vNIt != vertexNodes.end(); ++vNIt)
723 if ( vNIt->SquareDistance( *node ) < checktol)
725 //MESSAGE("SquareDistance " << vNIt->SquareDistance( *node ) << " checktol " << checktol <<" "<<vNIt->X()<<" "<<vNIt->Y()<<" "<<vNIt->Z());
726 (*n2nIt).second = vNIt->_node;
727 vertexNodes.erase( vNIt );
730 else if ( vNIt->SquareDistance( *node ) < 10*checktol)
731 MESSAGE("SquareDistance missed" << vNIt->SquareDistance( *node ) << " checktol " << checktol <<" "<<vNIt->X()<<" "<<vNIt->Y()<<" "<<vNIt->Z());
733 if ( !n2nIt->second )
735 // find out if node lies on theShape
737 tmpNode->setXYZ( (*node)->X(), (*node)->Y(), (*node)->Z());
738 if ( helper.CheckNodeU( geomEdge, tmpNode, u, mytol, /*force=*/true)) // , dxyz )) // dxyz used for debug purposes
740 SMDS_MeshNode* newNode = tgtMesh->AddNode( (*node)->X(), (*node)->Y(), (*node)->Z());
741 n2nIt->second = newNode;
742 tgtMesh->SetNodeOnEdge( newNode, shapeID, u );
743 //MESSAGE("u=" << u << " " << newNode->X()<< " " << newNode->Y()<< " " << newNode->Z());
744 //MESSAGE("d=" << dxyz[0] << " " << dxyz[1] << " " << dxyz[2] << " " << dxyz[3]);
747 if ( !(newNodes[i] = n2nIt->second ))
750 if ( !newNodes.back() )
752 //MESSAGE("not all nodes of edge lie on theShape");
753 continue; // not all nodes of edge lie on theShape
757 SMDS_MeshElement * newEdge;
758 if ( newNodes.size() == 3 )
759 newEdge = tgtMesh->AddEdge( newNodes[0], newNodes[1], newNodes[2] );
761 newEdge = tgtMesh->AddEdge( newNodes[0], newNodes[1]);
762 //MESSAGE("add Edge " << newNodes[0]->GetID() << " " << newNodes[1]->GetID());
763 tgtMesh->SetMeshElementOnShape( newEdge, shapeID );
764 e2e->insert( make_pair( edge, newEdge ));
766 helper.GetMeshDS()->RemoveNode(tmpNode);
769 return error("Empty source groups");
771 // check if the whole geom edge is covered by imported segments;
772 // the check consist in passing by segments from one vetrex node to another
773 bool isEdgeMeshed = false;
774 if ( SMESHDS_SubMesh* tgtSM = tgtMesh->MeshElements( theShape ))
776 const TopoDS_Vertex& v = ( vExp.ReInit(), TopoDS::Vertex( vExp.Current() ));
777 const SMDS_MeshNode* n = SMESH_Algo::VertexNode( v, tgtMesh );
778 const SMDS_MeshElement* seg = 0;
779 SMDS_ElemIteratorPtr segIt = n->GetInverseElementIterator(SMDSAbs_Edge);
780 while ( segIt->more() && !seg )
781 if ( !tgtSM->Contains( seg = segIt->next()))
783 int nbPassedSegs = 0;
787 const SMDS_MeshNode* n2 = seg->GetNode(0);
788 n = ( n2 == n ? seg->GetNode(1) : n2 );
789 if ( n->GetPosition()->GetTypeOfPosition() == SMDS_TOP_VERTEX )
791 const SMDS_MeshElement* seg2 = 0;
792 segIt = n->GetInverseElementIterator(SMDSAbs_Edge);
793 while ( segIt->more() && !seg2 )
794 if ( seg == ( seg2 = segIt->next()))
798 if (nbPassedSegs > 0 && tgtSM->NbElements() > nbPassedSegs )
799 return error( "Source elements overlap one another");
801 isEdgeMeshed = ( tgtSM->NbElements() == nbPassedSegs &&
802 n->GetPosition()->GetTypeOfPosition() == SMDS_TOP_VERTEX );
805 return error( "Source elements don't cover totally the geometrical edge" );
808 vector<SMESH_Mesh*> srcMeshes = _sourceHyp->GetSourceMeshes();
809 for ( unsigned i = 0; i < srcMeshes.size(); ++i )
810 importMesh( srcMeshes[i], theMesh, _sourceHyp, theShape );
815 //================================================================================
817 * \brief Copy mesh and groups
819 //================================================================================
821 void StdMeshers_Import_1D::importMesh(const SMESH_Mesh* srcMesh,
822 SMESH_Mesh & tgtMesh,
823 StdMeshers_ImportSource1D* srcHyp,
824 const TopoDS_Shape& tgtShape)
826 // get submesh to store the imported mesh
830 SMESHDS_SubMesh* tgtSubMesh =
831 getSubmeshForCopiedMesh( srcMesh, &tgtMesh, tgtShape, n2n, e2e, toCopyGroups );
832 if ( !tgtSubMesh || tgtSubMesh->NbNodes() + tgtSubMesh->NbElements() > 0 )
833 return; // not to copy srcMeshDS twice
835 SMESHDS_Mesh* tgtMeshDS = tgtMesh.GetMeshDS();
836 SMESH_MeshEditor additor( &tgtMesh );
840 vector<const SMDS_MeshNode*> newNodes;
841 const SMESHDS_Mesh* srcMeshDS = srcMesh->GetMeshDS();
842 SMDS_ElemIteratorPtr eIt = srcMeshDS->elementsIterator();
843 while ( eIt->more() )
845 const SMDS_MeshElement* elem = eIt->next();
846 TElemElemMap::iterator e2eIt = e2e->insert( make_pair( elem, (SMDS_MeshElement*)0 )).first;
847 if ( e2eIt->second ) continue; // already copied by Compute()
848 newNodes.resize( elem->NbNodes() );
849 SMDS_MeshElement::iterator node = elem->begin_nodes();
850 for ( unsigned i = 0; i < newNodes.size(); ++i, ++node )
852 TNodeNodeMap::iterator n2nIt = n2n->insert( make_pair( *node, (SMDS_MeshNode*)0 )).first;
853 if ( !n2nIt->second )
855 (*n2nIt).second = tgtMeshDS->AddNode( (*node)->X(), (*node)->Y(), (*node)->Z());
856 tgtSubMesh->AddNode( n2nIt->second );
858 newNodes[i] = n2nIt->second;
860 const SMDS_MeshElement* newElem =
861 tgtMeshDS->FindElement( newNodes, elem->GetType(), /*noMedium=*/false );
864 newElem = additor.AddElement( newNodes, elem->GetType(), elem->IsPoly());
865 tgtSubMesh->AddElement( newElem );
868 (*e2eIt).second = newElem;
871 if ( srcMeshDS->NbNodes() > n2n->size() )
873 SMDS_NodeIteratorPtr nIt = srcMeshDS->nodesIterator();
876 const SMDS_MeshNode* node = nIt->next();
877 if ( node->NbInverseElements() == 0 )
879 const SMDS_MeshNode* newNode = tgtMeshDS->AddNode( node->X(), node->Y(), node->Z());
880 n2n->insert( make_pair( node, newNode ));
881 tgtSubMesh->AddNode( newNode );
888 vector<SMESH_Group*> resultGroups;
891 // collect names of existing groups to assure uniqueness of group names within a type
892 map< SMDSAbs_ElementType, set<string> > namesByType;
893 SMESH_Mesh::GroupIteratorPtr groupIt = tgtMesh.GetGroups();
894 while ( groupIt->more() )
896 SMESH_Group* tgtGroup = groupIt->next();
897 namesByType[ tgtGroup->GetGroupDS()->GetType() ].insert( tgtGroup->GetName() );
901 SMESH_Mesh::GroupIteratorPtr groupIt = srcMesh->GetGroups();
902 while ( groupIt->more() )
904 SMESH_Group* srcGroup = groupIt->next();
905 SMESHDS_GroupBase* srcGroupDS = srcGroup->GetGroupDS();
906 string name = srcGroup->GetName();
908 while ( !namesByType[ srcGroupDS->GetType() ].insert( name ).second )
909 name = SMESH_Comment(srcGroup->GetName()) << "_imported_" << nb++;
910 SMESH_Group* newGroup = tgtMesh.AddGroup( srcGroupDS->GetType(), name.c_str(), nb );
911 SMESHDS_Group* newGroupDS = (SMESHDS_Group*)newGroup->GetGroupDS();
912 resultGroups.push_back( newGroup );
914 eIt = srcGroupDS->GetElements();
915 if ( srcGroupDS->GetType() == SMDSAbs_Node )
918 TNodeNodeMap::iterator n2nIt = n2n->find((const SMDS_MeshNode*) eIt->next() );
919 if ( n2nIt != n2n->end() && n2nIt->second )
920 newGroupDS->SMDSGroup().Add((*n2nIt).second );
925 TElemElemMap::iterator e2eIt = e2e->find( eIt->next() );
926 if ( e2eIt != e2e->end() && e2eIt->second )
927 newGroupDS->SMDSGroup().Add((*e2eIt).second );
935 // Remember created groups in order to remove them as soon as the srcHyp is
936 // modified or something other similar happens. This imformation must be persistent,
937 // for that store them in a hypothesis as it stores its values in the file anyway
938 srcHyp->StoreResultGroups( resultGroups, *srcMeshDS, *tgtMeshDS );
941 //=============================================================================
943 * \brief Set needed event listeners and create a submesh for a copied mesh
945 * This method is called only if a submesh has HYP_OK algo_state.
947 //=============================================================================
949 void StdMeshers_Import_1D::setEventListener(SMESH_subMesh* subMesh,
950 StdMeshers_ImportSource1D* sourceHyp)
954 vector<SMESH_Mesh*> srcMeshes = sourceHyp->GetSourceMeshes();
955 if ( srcMeshes.empty() )
956 _Listener::waitHypModification( subMesh );
957 for ( unsigned i = 0; i < srcMeshes.size(); ++i )
958 // set a listener to remove the imported mesh and groups
959 _Listener::storeImportSubmesh( subMesh, srcMeshes[i], sourceHyp );
962 void StdMeshers_Import_1D::SetEventListener(SMESH_subMesh* subMesh)
966 const TopoDS_Shape& tgtShape = subMesh->GetSubShape();
967 SMESH_Mesh* tgtMesh = subMesh->GetFather();
968 Hypothesis_Status aStatus;
969 CheckHypothesis( *tgtMesh, tgtShape, aStatus );
971 setEventListener( subMesh, _sourceHyp );
974 void StdMeshers_Import_1D::SubmeshRestored(SMESH_subMesh* subMesh)
976 SetEventListener(subMesh);
979 //=============================================================================
981 * Predict nb of mesh entities created by Compute()
983 //=============================================================================
985 bool StdMeshers_Import_1D::Evaluate(SMESH_Mesh & theMesh,
986 const TopoDS_Shape & theShape,
987 MapShapeNbElems& aResMap)
989 if ( !_sourceHyp ) return false;
991 const vector<SMESH_Group*>& srcGroups = _sourceHyp->GetGroups();
992 if ( srcGroups.empty() )
993 return error("Invalid source groups");
995 vector<int> aVec(SMDSEntity_Last,0);
997 bool toCopyMesh, toCopyGroups;
998 _sourceHyp->GetCopySourceMesh(toCopyMesh, toCopyGroups);
999 if ( toCopyMesh ) // the whole mesh is copied
1001 vector<SMESH_Mesh*> srcMeshes = _sourceHyp->GetSourceMeshes();
1002 for ( unsigned i = 0; i < srcMeshes.size(); ++i )
1004 SMESH_subMesh* sm = getSubMeshOfCopiedMesh( theMesh, *srcMeshes[i]);
1005 if ( !sm || aResMap.count( sm )) continue; // already counted
1006 aVec.assign( SMDSEntity_Last, 0);
1007 const SMDS_MeshInfo& aMeshInfo = srcMeshes[i]->GetMeshDS()->GetMeshInfo();
1008 for (int i = 0; i < SMDSEntity_Last; i++)
1009 aVec[i] = aMeshInfo.NbEntities((SMDSAbs_EntityType)i);
1014 SMESH_MesherHelper helper(theMesh);
1016 const TopoDS_Edge& geomEdge = TopoDS::Edge( theShape );
1017 const double edgeTol = helper.MaxTolerance( geomEdge );
1019 // take into account nodes on vertices
1020 TopExp_Explorer vExp( theShape, TopAbs_VERTEX );
1021 for ( ; vExp.More(); vExp.Next() )
1022 theMesh.GetSubMesh( vExp.Current())->Evaluate( aResMap );
1024 // count edges imported from groups
1025 int nbEdges = 0, nbQuadEdges = 0;
1026 for ( int iG = 0; iG < srcGroups.size(); ++iG )
1028 const SMESHDS_GroupBase* srcGroup = srcGroups[iG]->GetGroupDS();
1029 SMDS_ElemIteratorPtr srcElems = srcGroup->GetElements();
1030 SMDS_MeshNode *tmpNode = helper.AddNode(0,0,0);
1031 while ( srcElems->more() ) // loop on group contents
1033 const SMDS_MeshElement* edge = srcElems->next();
1034 // find out if edge is located on geomEdge by projecting
1035 // a middle of edge to geomEdge
1036 SMESH_TNodeXYZ p1( edge->GetNode(0));
1037 SMESH_TNodeXYZ p2( edge->GetNode(1));
1038 gp_XYZ middle = ( p1 + p2 ) / 2.;
1039 tmpNode->setXYZ( middle.X(), middle.Y(), middle.Z());
1041 if ( helper.CheckNodeU( geomEdge, tmpNode, u, 10 * edgeTol, /*force=*/true ))
1042 ++( edge->IsQuadratic() ? nbQuadEdges : nbEdges);
1044 helper.GetMeshDS()->RemoveNode(tmpNode);
1047 int nbNodes = nbEdges + 2 * nbQuadEdges - 1;
1049 aVec[SMDSEntity_Node ] = nbNodes;
1050 aVec[SMDSEntity_Edge ] = nbEdges;
1051 aVec[SMDSEntity_Quad_Edge] = nbQuadEdges;
1054 SMESH_subMesh * sm = theMesh.GetSubMesh(theShape);
1055 aResMap.insert(make_pair(sm,aVec));
1060 //================================================================================
1062 * \brief Return node-node and element-element maps for import of geiven source mesh
1064 //================================================================================
1066 void StdMeshers_Import_1D::getMaps(const SMESH_Mesh* srcMesh,
1067 SMESH_Mesh* tgtMesh,
1071 _ImportData* iData = _Listener::getImportData(srcMesh,tgtMesh);
1074 if ( iData->_copyMeshSubM.empty() )
1076 // n2n->clear(); -- for sharing nodes on EDGEs
1081 //================================================================================
1083 * \brief Return submesh corresponding to the copied mesh
1085 //================================================================================
1087 SMESH_subMesh* StdMeshers_Import_1D::getSubMeshOfCopiedMesh( SMESH_Mesh& tgtMesh,
1088 SMESH_Mesh& srcMesh )
1090 _ImportData* iData = _Listener::getImportData(&srcMesh,&tgtMesh);
1091 if ( iData->_copyMeshSubM.empty() ) return 0;
1092 SMESH_subMesh* sm = tgtMesh.GetSubMeshContaining( iData->_importMeshSubID );