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() )
230 if ( SMESH_Algo::isDegenerated( TopoDS::Edge( sm->GetSubShape() )))
234 if ( !sm->IsEmpty() )
235 _computedSubM.insert( sm );
243 //================================================================================
245 * Listener notified on events relating to imported submesh
247 class _Listener : public SMESH_subMeshEventListener
249 typedef map< SMESH_Mesh*, list< _ImportData > > TMesh2ImpData;
250 TMesh2ImpData _tgtMesh2ImportData;
252 _Listener():SMESH_subMeshEventListener(/*isDeletable=*/false,
253 "StdMeshers_Import_1D::_Listener") {}
256 // return poiter to a static listener
257 static _Listener* get() { static _Listener theListener; return &theListener; }
259 static _ImportData* getImportData(const SMESH_Mesh* srcMesh, SMESH_Mesh* tgtMesh);
261 static void storeImportSubmesh(SMESH_subMesh* importSub,
262 const SMESH_Mesh* srcMesh,
263 const StdMeshers_ImportSource1D* srcHyp);
265 virtual void ProcessEvent(const int event,
267 SMESH_subMesh* subMesh,
268 SMESH_subMeshEventListenerData* data,
269 const SMESH_Hypothesis* hyp);
270 void removeSubmesh( SMESH_subMesh* sm, _ListenerData* data );
271 void clearSubmesh ( SMESH_subMesh* sm, _ListenerData* data, bool clearAllSub );
272 void clearN2N ( SMESH_Mesh* tgtMesh );
274 // mark sm as missing src hyp with valid groups
275 static void waitHypModification(SMESH_subMesh* sm)
278 (get(), SMESH_subMeshEventListenerData::MakeData( sm, WAIT_HYP_MODIF ), sm);
281 //--------------------------------------------------------------------------------
283 * \brief Find or create ImportData for given meshes
285 _ImportData* _Listener::getImportData(const SMESH_Mesh* srcMesh,
288 list< _ImportData >& dList = get()->_tgtMesh2ImportData[tgtMesh];
289 list< _ImportData >::iterator d = dList.begin();
290 for ( ; d != dList.end(); ++d )
291 if ( d->_srcMesh == srcMesh )
293 dList.push_back(_ImportData(srcMesh));
294 return &dList.back();
297 //--------------------------------------------------------------------------------
299 * \brief Remember an imported sub-mesh and set needed even listeners
300 * \param importSub - submesh computed by Import algo
301 * \param srcMesh - source mesh
302 * \param srcHyp - ImportSource hypothesis
304 void _Listener::storeImportSubmesh(SMESH_subMesh* importSub,
305 const SMESH_Mesh* srcMesh,
306 const StdMeshers_ImportSource1D* srcHyp)
308 // set listener to hear events of the submesh computed by "Import" algo
309 importSub->SetEventListener( get(), new _ListenerData(srcHyp), importSub );
311 // set listeners to hear events of the source mesh
312 SMESH_subMesh* smToNotify = importSub;
313 vector<SMESH_subMesh*> smToListen = srcHyp->GetSourceSubMeshes( srcMesh );
314 for ( size_t i = 0; i < smToListen.size(); ++i )
316 SMESH_subMeshEventListenerData* data = new _ListenerData(srcHyp, LISTEN_SRC_MESH);
317 data->mySubMeshes.push_back( smToNotify );
318 importSub->SetEventListener( get(), data, smToListen[i] );
320 // remember the submesh importSub and its sub-submeshes
321 _ImportData* iData = _Listener::getImportData( srcMesh, importSub->GetFather());
322 iData->trackHypParams( importSub, srcHyp );
323 iData->addComputed( importSub );
324 if ( !iData->_copyMeshSubM.empty() && iData->_importMeshSubID < 1 )
326 SMESH_Mesh* tgtMesh = importSub->GetFather();
327 iData->_importMeshSubID = getSubmeshIDForCopiedMesh( srcMesh->GetMeshDS(),tgtMesh);
328 iData->_importMeshSubDS = tgtMesh->GetMeshDS()->NewSubMesh( iData->_importMeshSubID );
331 //--------------------------------------------------------------------------------
333 * \brief Remove imported mesh and/or groups if needed
334 * \param sm - submesh loosing Import algo
335 * \param data - data holding imported groups
337 void _Listener::removeSubmesh( SMESH_subMesh* sm, _ListenerData* data )
339 list< _ImportData > & dList = _tgtMesh2ImportData[ sm->GetFather() ];
340 list< _ImportData >::iterator d = dList.begin();
341 for ( ; d != dList.end(); ++d )
342 if ( (*d)._subM.erase( sm ))
344 d->_computedSubM.erase( sm );
345 bool rmMesh = d->_copyMeshSubM.erase( sm ) && d->_copyMeshSubM.empty();
346 bool rmGroups = (d->_copyGroupSubM.erase( sm ) && d->_copyGroupSubM.empty()) || rmMesh;
348 d->removeImportedMesh( sm->GetFather()->GetMeshDS() );
349 if ( rmGroups && data )
350 d->removeGroups( sm, data->_srcHyp );
353 //--------------------------------------------------------------------------------
355 * \brief Clear _ImportData::_n2n.
356 * _n2n is usefull within one mesh.Compute() only
358 void _Listener::clearN2N( SMESH_Mesh* tgtMesh )
360 list< _ImportData >& dList = get()->_tgtMesh2ImportData[tgtMesh];
361 list< _ImportData >::iterator d = dList.begin();
362 for ( ; d != dList.end(); ++d )
365 //--------------------------------------------------------------------------------
367 * \brief Clear submeshes and remove imported mesh and/or groups if necessary
368 * \param sm - cleared submesh
369 * \param data - data holding imported groups
371 void _Listener::clearSubmesh(SMESH_subMesh* sm, _ListenerData* data, bool clearAllSub)
373 list< _ImportData > & dList = _tgtMesh2ImportData[ sm->GetFather() ];
374 list< _ImportData >::iterator d = dList.begin();
375 for ( ; d != dList.end(); ++d )
377 if ( !d->_subM.count( sm )) continue;
378 if ( (*d)._computedSubM.erase( sm ) )
380 bool copyMesh = !d->_copyMeshSubM.empty();
381 if ( copyMesh || clearAllSub )
383 // remove imported mesh and groups
384 d->removeImportedMesh( sm->GetFather()->GetMeshDS() );
387 d->removeGroups( sm, data->_srcHyp );
389 // clear the rest submeshes
390 if ( !d->_computedSubM.empty() )
392 d->_computedSubM.clear();
393 set< SMESH_subMesh*, _SubLess>::iterator sub = d->_subM.begin();
394 for ( ; sub != d->_subM.end(); ++sub )
396 SMESH_subMesh* subM = *sub;
397 _ListenerData* hypData = (_ListenerData*) subM->GetEventListenerData( get() );
399 d->removeGroups( sm, hypData->_srcHyp );
401 subM->ComputeStateEngine( SMESH_subMesh::CLEAN );
402 if ( subM->GetSubShape().ShapeType() == TopAbs_FACE )
403 subM->ComputeSubMeshStateEngine( SMESH_subMesh::CLEAN );
407 sm->ComputeStateEngine( SMESH_subMesh::CLEAN );
408 if ( sm->GetSubShape().ShapeType() == TopAbs_FACE )
409 sm->ComputeSubMeshStateEngine( SMESH_subMesh::CLEAN );
412 d->trackHypParams( sm, data->_srcHyp );
417 //--------------------------------------------------------------------------------
419 * \brief Remove imported mesh and/or groups
421 void _Listener::ProcessEvent(const int event,
423 SMESH_subMesh* subMesh,
424 SMESH_subMeshEventListenerData* data,
425 const SMESH_Hypothesis* /*hyp*/)
427 if ( data && data->myType == WAIT_HYP_MODIF )
429 // event of Import submesh
430 if ( SMESH_subMesh::MODIF_HYP == event &&
431 SMESH_subMesh::ALGO_EVENT == eventType )
433 // re-call SetEventListener() to take into account valid parameters
434 // of ImportSource hypothesis
435 if ( SMESH_Algo* algo = subMesh->GetAlgo() )
436 algo->SetEventListener( subMesh );
439 else if ( data && data->myType == LISTEN_SRC_MESH )
441 // event of source mesh
442 if ( SMESH_subMesh::COMPUTE_EVENT == eventType )
445 case SMESH_subMesh::CLEAN:
446 // source mesh cleaned -> clean target mesh
447 clearSubmesh( data->mySubMeshes.front(), (_ListenerData*) data, /*all=*/true );
449 case SMESH_subMesh::SUBMESH_COMPUTED: {
450 // source mesh computed -> reset FAILED state of Import submeshes to
452 SMESH_Mesh* srcMesh = subMesh->GetFather();
453 if ( srcMesh->NbEdges() > 0 || srcMesh->NbFaces() > 0 )
455 SMESH_Mesh* m = data->mySubMeshes.front()->GetFather();
456 if ( SMESH_subMesh* sm1 = m->GetSubMeshContaining(1))
458 sm1->ComputeStateEngine(SMESH_subMesh::SUBMESH_COMPUTED );
459 sm1->ComputeSubMeshStateEngine( SMESH_subMesh::SUBMESH_COMPUTED );
467 if ( !data->mySubMeshes.empty() )
468 clearN2N( data->mySubMeshes.front()->GetFather() );
470 else // event of Import submesh
472 // find out what happens: import hyp modified or removed
473 bool removeImport = false, modifHyp = false;
474 if ( SMESH_subMesh::ALGO_EVENT == eventType )
476 if ( subMesh->GetAlgoState() != SMESH_subMesh::HYP_OK )
480 else if (( SMESH_subMesh::REMOVE_ALGO == event ||
481 SMESH_subMesh::REMOVE_FATHER_ALGO == event ) &&
482 SMESH_subMesh::ALGO_EVENT == eventType )
484 SMESH_Algo* algo = subMesh->GetAlgo();
485 removeImport = ( strncmp( "Import", algo->GetName(), 6 ) != 0 );
490 // treate removal of Import algo from subMesh
491 removeSubmesh( subMesh, (_ListenerData*) data );
493 else if ( modifHyp ||
494 ( SMESH_subMesh::CLEAN == event &&
495 SMESH_subMesh::COMPUTE_EVENT == eventType))
497 // treate modification of ImportSource hypothesis
498 clearSubmesh( subMesh, (_ListenerData*) data, /*all=*/false );
500 else if ( SMESH_subMesh::CHECK_COMPUTE_STATE == event &&
501 SMESH_subMesh::COMPUTE_EVENT == eventType )
503 // check compute state of all submeshes impoting from same src mesh;
504 // this is to take into account 1D computed submeshes hidden by 2D import algo;
505 // else source mesh is not copied as _subM.size != _computedSubM.size()
506 list< _ImportData > & dList = _tgtMesh2ImportData[ subMesh->GetFather() ];
507 list< _ImportData >::iterator d = dList.begin();
508 for ( ; d != dList.end(); ++d )
509 if ( d->_subM.count( subMesh ))
511 set<SMESH_subMesh*,_SubLess>::iterator smIt = d->_subM.begin();
512 for( ; smIt != d->_subM.end(); ++smIt )
513 if ( (*smIt)->IsMeshComputed() )
514 d->_computedSubM.insert( *smIt);
517 // Clear _ImportData::_n2n if it's no more useful, i.e. when
518 // the event is not within mesh.Compute()
519 if ( SMESH_subMesh::ALGO_EVENT == eventType )
520 clearN2N( subMesh->GetFather() );
524 //================================================================================
526 * \brief Return an ID of submesh to store nodes and elements of a copied mesh
528 //================================================================================
530 int getSubmeshIDForCopiedMesh(const SMESHDS_Mesh* srcMeshDS,
533 // To get SMESH_subMesh corresponding to srcMeshDS we need to have a shape
534 // for which SMESHDS_Mesh::IsGroupOfSubShapes() returns true.
535 // And this shape must be different from sub-shapes of the main shape.
536 // So we create a compound containing
537 // 1) some sub-shapes of SMESH_Mesh::PseudoShape() corresponding to
538 // srcMeshDS->GetPersistentId()
539 // 2) the 1-st vertex of the main shape to assure
540 // SMESHDS_Mesh::IsGroupOfSubShapes(shape)==true
541 TopoDS_Shape shapeForSrcMesh;
542 TopTools_IndexedMapOfShape pseudoSubShapes;
543 TopExp::MapShapes( SMESH_Mesh::PseudoShape(), pseudoSubShapes );
545 // index of pseudoSubShapes corresponding to srcMeshDS
546 int subIndex = 1 + srcMeshDS->GetPersistentId() % pseudoSubShapes.Extent();
547 int nbSubShapes = 1 + srcMeshDS->GetPersistentId() / pseudoSubShapes.Extent();
549 // try to find already present shapeForSrcMesh
550 SMESHDS_Mesh* tgtMeshDS = tgtMesh->GetMeshDS();
551 for ( int i = tgtMeshDS->MaxShapeIndex(); i > 0 && shapeForSrcMesh.IsNull(); --i )
553 const TopoDS_Shape& s = tgtMeshDS->IndexToShape(i);
554 if ( s.ShapeType() != TopAbs_COMPOUND ) break;
555 TopoDS_Iterator sSubIt( s );
556 for ( int iSub = 0; iSub < nbSubShapes && sSubIt.More(); ++iSub, sSubIt.Next() )
557 if ( pseudoSubShapes( subIndex+iSub ).IsSame( sSubIt.Value()))
558 if ( iSub+1 == nbSubShapes )
564 if ( shapeForSrcMesh.IsNull() )
566 // make a new shapeForSrcMesh
567 BRep_Builder aBuilder;
568 TopoDS_Compound comp;
569 aBuilder.MakeCompound( comp );
570 shapeForSrcMesh = comp;
571 for ( int iSub = 0; iSub < nbSubShapes; ++iSub )
572 aBuilder.Add( comp, pseudoSubShapes( subIndex+iSub ));
573 TopExp_Explorer vExp( tgtMeshDS->ShapeToMesh(), TopAbs_VERTEX );
574 aBuilder.Add( comp, vExp.Current() );
576 SMESH_subMesh* sm = tgtMesh->GetSubMesh( shapeForSrcMesh );
577 SMESHDS_SubMesh* smDS = sm->GetSubMeshDS();
579 smDS = tgtMeshDS->NewSubMesh( sm->GetId() );
581 // make ordinary submesh from a complex one
582 if ( smDS->IsComplexSubmesh() )
584 list< const SMESHDS_SubMesh* > subSM;
585 SMESHDS_SubMeshIteratorPtr smIt = smDS->GetSubMeshIterator();
586 while ( smIt->more() ) subSM.push_back( smIt->next() );
587 list< const SMESHDS_SubMesh* >::iterator sub = subSM.begin();
588 for ( ; sub != subSM.end(); ++sub)
589 smDS->RemoveSubMesh( *sub );
594 //================================================================================
596 * \brief Return a submesh to store nodes and elements of a copied mesh
597 * and set event listeners in order to clear
598 * imported mesh and groups as soon as submesh state requires it
600 //================================================================================
602 SMESHDS_SubMesh* getSubmeshForCopiedMesh(const SMESH_Mesh* srcMesh,
604 const TopoDS_Shape& tgtShape,
605 StdMeshers_Import_1D::TNodeNodeMap*& n2n,
606 StdMeshers_Import_1D::TElemElemMap*& e2e,
609 StdMeshers_Import_1D::getMaps( srcMesh, tgtMesh, n2n,e2e );
611 _ImportData* iData = _Listener::getImportData(srcMesh,tgtMesh);
613 SMESH_subMesh* importedSM = tgtMesh->GetSubMesh( tgtShape );
614 iData->addComputed( importedSM );
615 if ( iData->_computedSubM.size() != iData->_subM.size() )
616 return 0; // not all submeshes computed yet
618 toCopyGroups = !iData->_copyGroupSubM.empty();
620 if ( !iData->_copyMeshSubM.empty())
622 // make submesh to store a copied mesh
623 int smID = getSubmeshIDForCopiedMesh( srcMesh->GetMeshDS(), tgtMesh );
624 SMESHDS_SubMesh* subDS = tgtMesh->GetMeshDS()->NewSubMesh( smID );
626 iData->_importMeshSubID = smID;
627 iData->_importMeshSubDS = subDS;
636 //=============================================================================
638 * Import elements from the other mesh
640 //=============================================================================
642 bool StdMeshers_Import_1D::Compute(SMESH_Mesh & theMesh, const TopoDS_Shape & theShape)
644 if ( !_sourceHyp ) return false;
646 //MESSAGE("---------> StdMeshers_Import_1D::Compute");
647 const vector<SMESH_Group*>& srcGroups = _sourceHyp->GetGroups(/*loaded=*/true);
648 if ( srcGroups.empty() )
649 return error("Invalid source groups");
651 SMESH_MesherHelper helper(theMesh);
652 helper.SetSubShape(theShape);
653 SMESHDS_Mesh* tgtMesh = theMesh.GetMeshDS();
655 const TopoDS_Edge& geomEdge = TopoDS::Edge( theShape );
656 const double edgeTol = BRep_Tool::Tolerance( geomEdge );
657 const int shapeID = tgtMesh->ShapeToIndex( geomEdge );
659 set<int> subShapeIDs;
660 subShapeIDs.insert( shapeID );
662 // get nodes on vertices
663 list < SMESH_TNodeXYZ > vertexNodes;
664 list < SMESH_TNodeXYZ >::iterator vNIt;
665 TopExp_Explorer vExp( theShape, TopAbs_VERTEX );
666 for ( ; vExp.More(); vExp.Next() )
668 const TopoDS_Vertex& v = TopoDS::Vertex( vExp.Current() );
669 if ( !subShapeIDs.insert( tgtMesh->ShapeToIndex( v )).second )
670 continue; // closed edge
671 const SMDS_MeshNode* n = SMESH_Algo::VertexNode( v, tgtMesh );
674 _gen->Compute(theMesh,v,/*anUpward=*/true);
675 n = SMESH_Algo::VertexNode( v, tgtMesh );
676 //MESSAGE("_gen->Compute " << n);
677 if ( !n ) return false; // very strange
679 vertexNodes.push_back( SMESH_TNodeXYZ( n ));
680 //MESSAGE("SMESH_Algo::VertexNode " << n->GetID() << " " << n->X() << " " << n->Y() << " " << n->Z() );
683 // import edges from groups
686 for ( int iG = 0; iG < srcGroups.size(); ++iG )
688 const SMESHDS_GroupBase* srcGroup = srcGroups[iG]->GetGroupDS();
690 const int meshID = srcGroup->GetMesh()->GetPersistentId();
691 const SMESH_Mesh* srcMesh = GetMeshByPersistentID( meshID );
692 if ( !srcMesh ) continue;
693 getMaps( srcMesh, &theMesh, n2n, e2e );
695 SMDS_ElemIteratorPtr srcElems = srcGroup->GetElements();
696 vector<const SMDS_MeshNode*> newNodes;
697 SMDS_MeshNode *tmpNode = helper.AddNode(0,0,0);
698 double u = 0.314159; // "random" value between 0 and 1, avoid 0 and 1, false detection possible on edge restrictions
699 while ( srcElems->more() ) // loop on group contents
701 const SMDS_MeshElement* edge = srcElems->next();
702 // find or create nodes of a new edge
703 newNodes.resize( edge->NbNodes() );
704 //MESSAGE("edge->NbNodes " << edge->NbNodes());
706 SMDS_MeshElement::iterator node = edge->begin_nodes();
707 SMESH_TNodeXYZ a(edge->GetNode(0));
708 // --- define a tolerance relative to the length of an edge
709 double mytol = a.Distance(edge->GetNode(edge->NbNodes()-1))/25;
710 //mytol = max(1.E-5, 10*edgeTol); // too strict and not necessary
711 //MESSAGE("mytol = " << mytol);
712 for ( unsigned i = 0; i < newNodes.size(); ++i, ++node )
714 TNodeNodeMap::iterator n2nIt = n2n->insert( make_pair( *node, (SMDS_MeshNode*)0 )).first;
717 if ( !subShapeIDs.count( n2nIt->second->getshapeId() ))
722 // find an existing vertex node
723 double checktol = max(1.E-10, 10*edgeTol*edgeTol);
724 for ( vNIt = vertexNodes.begin(); vNIt != vertexNodes.end(); ++vNIt)
725 if ( vNIt->SquareDistance( *node ) < checktol)
727 //MESSAGE("SquareDistance " << vNIt->SquareDistance( *node ) << " checktol " << checktol <<" "<<vNIt->X()<<" "<<vNIt->Y()<<" "<<vNIt->Z());
728 (*n2nIt).second = vNIt->_node;
729 vertexNodes.erase( vNIt );
732 else if ( vNIt->SquareDistance( *node ) < 10*checktol)
733 MESSAGE("SquareDistance missed" << vNIt->SquareDistance( *node ) << " checktol " << checktol <<" "<<vNIt->X()<<" "<<vNIt->Y()<<" "<<vNIt->Z());
735 if ( !n2nIt->second )
737 // find out if node lies on theShape
739 tmpNode->setXYZ( (*node)->X(), (*node)->Y(), (*node)->Z());
740 if ( helper.CheckNodeU( geomEdge, tmpNode, u, mytol, /*force=*/true)) // , dxyz )) // dxyz used for debug purposes
742 SMDS_MeshNode* newNode = tgtMesh->AddNode( (*node)->X(), (*node)->Y(), (*node)->Z());
743 n2nIt->second = newNode;
744 tgtMesh->SetNodeOnEdge( newNode, shapeID, u );
745 //MESSAGE("u=" << u << " " << newNode->X()<< " " << newNode->Y()<< " " << newNode->Z());
746 //MESSAGE("d=" << dxyz[0] << " " << dxyz[1] << " " << dxyz[2] << " " << dxyz[3]);
749 if ( !(newNodes[i] = n2nIt->second ))
752 if ( !newNodes.back() )
754 //MESSAGE("not all nodes of edge lie on theShape");
755 continue; // not all nodes of edge lie on theShape
759 SMDS_MeshElement * newEdge;
760 if ( newNodes.size() == 3 )
761 newEdge = tgtMesh->AddEdge( newNodes[0], newNodes[1], newNodes[2] );
763 newEdge = tgtMesh->AddEdge( newNodes[0], newNodes[1]);
764 //MESSAGE("add Edge " << newNodes[0]->GetID() << " " << newNodes[1]->GetID());
765 tgtMesh->SetMeshElementOnShape( newEdge, shapeID );
766 e2e->insert( make_pair( edge, newEdge ));
768 helper.GetMeshDS()->RemoveNode(tmpNode);
771 return error("Empty source groups");
773 // check if the whole geom edge is covered by imported segments;
774 // the check consist in passing by segments from one vetrex node to another
775 bool isEdgeMeshed = false;
776 if ( SMESHDS_SubMesh* tgtSM = tgtMesh->MeshElements( theShape ))
778 const TopoDS_Vertex& v = ( vExp.ReInit(), TopoDS::Vertex( vExp.Current() ));
779 const SMDS_MeshNode* n = SMESH_Algo::VertexNode( v, tgtMesh );
780 const SMDS_MeshElement* seg = 0;
781 SMDS_ElemIteratorPtr segIt = n->GetInverseElementIterator(SMDSAbs_Edge);
782 while ( segIt->more() && !seg )
783 if ( !tgtSM->Contains( seg = segIt->next()))
785 int nbPassedSegs = 0;
789 const SMDS_MeshNode* n2 = seg->GetNode(0);
790 n = ( n2 == n ? seg->GetNode(1) : n2 );
791 if ( n->GetPosition()->GetTypeOfPosition() == SMDS_TOP_VERTEX )
793 const SMDS_MeshElement* seg2 = 0;
794 segIt = n->GetInverseElementIterator(SMDSAbs_Edge);
795 while ( segIt->more() && !seg2 )
796 if ( seg == ( seg2 = segIt->next()))
800 if (nbPassedSegs > 0 && tgtSM->NbElements() > nbPassedSegs )
801 return error( "Source elements overlap one another");
803 isEdgeMeshed = ( tgtSM->NbElements() == nbPassedSegs &&
804 n->GetPosition()->GetTypeOfPosition() == SMDS_TOP_VERTEX );
807 return error( "Source elements don't cover totally the geometrical edge" );
810 vector<SMESH_Mesh*> srcMeshes = _sourceHyp->GetSourceMeshes();
811 for ( unsigned i = 0; i < srcMeshes.size(); ++i )
812 importMesh( srcMeshes[i], theMesh, _sourceHyp, theShape );
817 //================================================================================
819 * \brief Copy mesh and groups
821 //================================================================================
823 void StdMeshers_Import_1D::importMesh(const SMESH_Mesh* srcMesh,
824 SMESH_Mesh & tgtMesh,
825 StdMeshers_ImportSource1D* srcHyp,
826 const TopoDS_Shape& tgtShape)
828 // get submesh to store the imported mesh
832 SMESHDS_SubMesh* tgtSubMesh =
833 getSubmeshForCopiedMesh( srcMesh, &tgtMesh, tgtShape, n2n, e2e, toCopyGroups );
834 if ( !tgtSubMesh || tgtSubMesh->NbNodes() + tgtSubMesh->NbElements() > 0 )
835 return; // not to copy srcMeshDS twice
837 SMESHDS_Mesh* tgtMeshDS = tgtMesh.GetMeshDS();
838 SMESH_MeshEditor additor( &tgtMesh );
842 vector<const SMDS_MeshNode*> newNodes;
843 const SMESHDS_Mesh* srcMeshDS = srcMesh->GetMeshDS();
844 SMDS_ElemIteratorPtr eIt = srcMeshDS->elementsIterator();
845 while ( eIt->more() )
847 const SMDS_MeshElement* elem = eIt->next();
848 TElemElemMap::iterator e2eIt = e2e->insert( make_pair( elem, (SMDS_MeshElement*)0 )).first;
849 if ( e2eIt->second ) continue; // already copied by Compute()
850 newNodes.resize( elem->NbNodes() );
851 SMDS_MeshElement::iterator node = elem->begin_nodes();
852 for ( unsigned i = 0; i < newNodes.size(); ++i, ++node )
854 TNodeNodeMap::iterator n2nIt = n2n->insert( make_pair( *node, (SMDS_MeshNode*)0 )).first;
855 if ( !n2nIt->second )
857 (*n2nIt).second = tgtMeshDS->AddNode( (*node)->X(), (*node)->Y(), (*node)->Z());
858 tgtSubMesh->AddNode( n2nIt->second );
860 newNodes[i] = n2nIt->second;
862 const SMDS_MeshElement* newElem =
863 tgtMeshDS->FindElement( newNodes, elem->GetType(), /*noMedium=*/false );
866 newElem = additor.AddElement( newNodes, elem->GetType(), elem->IsPoly());
867 tgtSubMesh->AddElement( newElem );
870 (*e2eIt).second = newElem;
873 if ( srcMeshDS->NbNodes() > n2n->size() )
875 SMDS_NodeIteratorPtr nIt = srcMeshDS->nodesIterator();
878 const SMDS_MeshNode* node = nIt->next();
879 if ( node->NbInverseElements() == 0 )
881 const SMDS_MeshNode* newNode = tgtMeshDS->AddNode( node->X(), node->Y(), node->Z());
882 n2n->insert( make_pair( node, newNode ));
883 tgtSubMesh->AddNode( newNode );
890 vector<SMESH_Group*> resultGroups;
893 // collect names of existing groups to assure uniqueness of group names within a type
894 map< SMDSAbs_ElementType, set<string> > namesByType;
895 SMESH_Mesh::GroupIteratorPtr groupIt = tgtMesh.GetGroups();
896 while ( groupIt->more() )
898 SMESH_Group* tgtGroup = groupIt->next();
899 namesByType[ tgtGroup->GetGroupDS()->GetType() ].insert( tgtGroup->GetName() );
903 SMESH_Mesh::GroupIteratorPtr groupIt = srcMesh->GetGroups();
904 while ( groupIt->more() )
906 SMESH_Group* srcGroup = groupIt->next();
907 SMESHDS_GroupBase* srcGroupDS = srcGroup->GetGroupDS();
908 string name = srcGroup->GetName();
910 while ( !namesByType[ srcGroupDS->GetType() ].insert( name ).second )
911 name = SMESH_Comment(srcGroup->GetName()) << "_imported_" << nb++;
912 SMESH_Group* newGroup = tgtMesh.AddGroup( srcGroupDS->GetType(), name.c_str(), nb );
913 SMESHDS_Group* newGroupDS = (SMESHDS_Group*)newGroup->GetGroupDS();
914 resultGroups.push_back( newGroup );
916 eIt = srcGroupDS->GetElements();
917 if ( srcGroupDS->GetType() == SMDSAbs_Node )
920 TNodeNodeMap::iterator n2nIt = n2n->find((const SMDS_MeshNode*) eIt->next() );
921 if ( n2nIt != n2n->end() && n2nIt->second )
922 newGroupDS->SMDSGroup().Add((*n2nIt).second );
927 TElemElemMap::iterator e2eIt = e2e->find( eIt->next() );
928 if ( e2eIt != e2e->end() && e2eIt->second )
929 newGroupDS->SMDSGroup().Add((*e2eIt).second );
937 // Remember created groups in order to remove them as soon as the srcHyp is
938 // modified or something other similar happens. This imformation must be persistent,
939 // for that store them in a hypothesis as it stores its values in the file anyway
940 srcHyp->StoreResultGroups( resultGroups, *srcMeshDS, *tgtMeshDS );
943 //=============================================================================
945 * \brief Set needed event listeners and create a submesh for a copied mesh
947 * This method is called only if a submesh has HYP_OK algo_state.
949 //=============================================================================
951 void StdMeshers_Import_1D::setEventListener(SMESH_subMesh* subMesh,
952 StdMeshers_ImportSource1D* sourceHyp)
956 vector<SMESH_Mesh*> srcMeshes = sourceHyp->GetSourceMeshes();
957 if ( srcMeshes.empty() )
958 _Listener::waitHypModification( subMesh );
959 for ( unsigned i = 0; i < srcMeshes.size(); ++i )
960 // set a listener to remove the imported mesh and groups
961 _Listener::storeImportSubmesh( subMesh, srcMeshes[i], sourceHyp );
964 void StdMeshers_Import_1D::SetEventListener(SMESH_subMesh* subMesh)
968 const TopoDS_Shape& tgtShape = subMesh->GetSubShape();
969 SMESH_Mesh* tgtMesh = subMesh->GetFather();
970 Hypothesis_Status aStatus;
971 CheckHypothesis( *tgtMesh, tgtShape, aStatus );
973 setEventListener( subMesh, _sourceHyp );
976 void StdMeshers_Import_1D::SubmeshRestored(SMESH_subMesh* subMesh)
978 SetEventListener(subMesh);
981 //=============================================================================
983 * Predict nb of mesh entities created by Compute()
985 //=============================================================================
987 bool StdMeshers_Import_1D::Evaluate(SMESH_Mesh & theMesh,
988 const TopoDS_Shape & theShape,
989 MapShapeNbElems& aResMap)
991 if ( !_sourceHyp ) return false;
993 const vector<SMESH_Group*>& srcGroups = _sourceHyp->GetGroups();
994 if ( srcGroups.empty() )
995 return error("Invalid source groups");
997 vector<int> aVec(SMDSEntity_Last,0);
999 bool toCopyMesh, toCopyGroups;
1000 _sourceHyp->GetCopySourceMesh(toCopyMesh, toCopyGroups);
1001 if ( toCopyMesh ) // the whole mesh is copied
1003 vector<SMESH_Mesh*> srcMeshes = _sourceHyp->GetSourceMeshes();
1004 for ( unsigned i = 0; i < srcMeshes.size(); ++i )
1006 SMESH_subMesh* sm = getSubMeshOfCopiedMesh( theMesh, *srcMeshes[i]);
1007 if ( !sm || aResMap.count( sm )) continue; // already counted
1008 aVec.assign( SMDSEntity_Last, 0);
1009 const SMDS_MeshInfo& aMeshInfo = srcMeshes[i]->GetMeshDS()->GetMeshInfo();
1010 for (int i = 0; i < SMDSEntity_Last; i++)
1011 aVec[i] = aMeshInfo.NbEntities((SMDSAbs_EntityType)i);
1016 SMESH_MesherHelper helper(theMesh);
1018 const TopoDS_Edge& geomEdge = TopoDS::Edge( theShape );
1019 const double edgeTol = helper.MaxTolerance( geomEdge );
1021 // take into account nodes on vertices
1022 TopExp_Explorer vExp( theShape, TopAbs_VERTEX );
1023 for ( ; vExp.More(); vExp.Next() )
1024 theMesh.GetSubMesh( vExp.Current())->Evaluate( aResMap );
1026 // count edges imported from groups
1027 int nbEdges = 0, nbQuadEdges = 0;
1028 for ( int iG = 0; iG < srcGroups.size(); ++iG )
1030 const SMESHDS_GroupBase* srcGroup = srcGroups[iG]->GetGroupDS();
1031 SMDS_ElemIteratorPtr srcElems = srcGroup->GetElements();
1032 SMDS_MeshNode *tmpNode = helper.AddNode(0,0,0);
1033 while ( srcElems->more() ) // loop on group contents
1035 const SMDS_MeshElement* edge = srcElems->next();
1036 // find out if edge is located on geomEdge by projecting
1037 // a middle of edge to geomEdge
1038 SMESH_TNodeXYZ p1( edge->GetNode(0));
1039 SMESH_TNodeXYZ p2( edge->GetNode(1));
1040 gp_XYZ middle = ( p1 + p2 ) / 2.;
1041 tmpNode->setXYZ( middle.X(), middle.Y(), middle.Z());
1043 if ( helper.CheckNodeU( geomEdge, tmpNode, u, 10 * edgeTol, /*force=*/true ))
1044 ++( edge->IsQuadratic() ? nbQuadEdges : nbEdges);
1046 helper.GetMeshDS()->RemoveNode(tmpNode);
1049 int nbNodes = nbEdges + 2 * nbQuadEdges - 1;
1051 aVec[SMDSEntity_Node ] = nbNodes;
1052 aVec[SMDSEntity_Edge ] = nbEdges;
1053 aVec[SMDSEntity_Quad_Edge] = nbQuadEdges;
1056 SMESH_subMesh * sm = theMesh.GetSubMesh(theShape);
1057 aResMap.insert(make_pair(sm,aVec));
1062 //================================================================================
1064 * \brief Return node-node and element-element maps for import of geiven source mesh
1066 //================================================================================
1068 void StdMeshers_Import_1D::getMaps(const SMESH_Mesh* srcMesh,
1069 SMESH_Mesh* tgtMesh,
1073 _ImportData* iData = _Listener::getImportData(srcMesh,tgtMesh);
1076 if ( iData->_copyMeshSubM.empty() )
1078 // n2n->clear(); -- for sharing nodes on EDGEs
1083 //================================================================================
1085 * \brief Return submesh corresponding to the copied mesh
1087 //================================================================================
1089 SMESH_subMesh* StdMeshers_Import_1D::getSubMeshOfCopiedMesh( SMESH_Mesh& tgtMesh,
1090 SMESH_Mesh& srcMesh )
1092 _ImportData* iData = _Listener::getImportData(&srcMesh,&tgtMesh);
1093 if ( iData->_copyMeshSubM.empty() ) return 0;
1094 SMESH_subMesh* sm = tgtMesh.GetSubMeshContaining( iData->_importMeshSubID );