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
23 // SMESH SMESH : implementation of SMESH idl descriptions
24 // File : SMESH_Gen.cxx
25 // Author : Paul RASCLE, EDF
31 #include "SMESH_Gen.hxx"
33 #include "DriverMesh.hxx"
34 #include "SMDS_Mesh.hxx"
35 #include "SMDS_MeshElement.hxx"
36 #include "SMDS_MeshNode.hxx"
37 #include "SMESHDS_Document.hxx"
38 #include "SMESH_HypoFilter.hxx"
39 #include "SMESH_Mesh.hxx"
40 #include "SMESH_MesherHelper.hxx"
41 #include "SMESH_subMesh.hxx"
43 #include <utilities.h>
44 #include <Utils_ExceptHandlers.hxx>
46 #include <TopExp_Explorer.hxx>
48 #include <TopoDS_Iterator.hxx>
56 #include <Basics_Utils.hxx>
59 #include <boost/filesystem.hpp>
60 namespace fs = boost::filesystem;
62 // Environment variable separator
71 // a structure used to nullify SMESH_Gen field of SMESH_Hypothesis,
72 // which is needed for SMESH_Hypothesis not deleted before ~SMESH_Gen()
73 struct _Hyp : public SMESH_Hypothesis
81 //================================================================================
83 * \brief Fill a map of shapes with all sub-shape of a sub-mesh
85 //================================================================================
87 TopTools_IndexedMapOfShape * fillAllowed( SMESH_subMesh* sm,
89 TopTools_IndexedMapOfShape * allowedSub )
91 if ( !toFill || !allowedSub )
95 if ( allowedSub->IsEmpty() )
97 allowedSub->ReSize( sm->DependsOn().size() + 1 );
98 allowedSub->Add( sm->GetSubShape() );
99 for ( const auto & key_sm : sm->DependsOn() )
100 allowedSub->Add( key_sm.second->GetSubShape() );
106 //=============================================================================
110 //=============================================================================
112 SMESH_Gen::SMESH_Gen()
114 _studyContext = new StudyContextStruct;
115 _studyContext->myDocument = new SMESHDS_Document();
118 _segmentation = _nbSegments = 10;
119 _compute_canceled = false;
122 //=============================================================================
126 //=============================================================================
128 SMESH_Gen::~SMESH_Gen()
130 std::map < int, SMESH_Hypothesis * >::iterator i_hyp = _studyContext->mapHypothesis.begin();
131 for ( ; i_hyp != _studyContext->mapHypothesis.end(); ++i_hyp )
133 if ( _Hyp* h = static_cast< _Hyp*>( i_hyp->second ))
136 delete _studyContext->myDocument;
137 delete _studyContext;
140 //=============================================================================
142 * Creates a mesh in a study.
143 * if (theIsEmbeddedMode) { mesh modification commands are not logged }
145 //=============================================================================
147 SMESH_Mesh* SMESH_Gen::CreateMesh(bool theIsEmbeddedMode)
149 Unexpect aCatch(SalomeException);
151 // create a new SMESH_mesh object
152 SMESH_Mesh *aMesh = new SMESH_Mesh(_localId++,
155 _studyContext->myDocument);
156 _studyContext->mapMesh[_localId-1] = aMesh;
161 //=============================================================================
163 * Parallel compute of a submesh
164 * This function is used to pass to thread_pool
166 //=============================================================================
167 const std::function<void(int,
169 SMESH_subMesh::compute_event,
172 TopTools_IndexedMapOfShape *,
174 compute_function([&] (int id,
176 SMESH_subMesh::compute_event event,
177 SMESH_subMesh *shapeSM,
179 TopTools_IndexedMapOfShape *allowedSubShapes,
180 TSetOfInt* aShapesId) -> void
182 if (sm->GetComputeState() == SMESH_subMesh::READY_TO_COMPUTE)
184 sm->SetAllowedSubShapes( fillAllowed( shapeSM, aShapeOnly, allowedSubShapes ));
185 //setCurrentSubMesh( sm );
186 sm->ComputeStateEngine(event);
187 //setCurrentSubMesh( nullptr );
188 sm->SetAllowedSubShapes( nullptr );
191 // TODO: Check if this is necessary
193 aShapesId->insert( sm->GetId() );
197 //=============================================================================
201 //=============================================================================
203 bool SMESH_Gen::Compute(SMESH_Mesh & aMesh,
204 const TopoDS_Shape & aShape,
205 const int aFlags /*= COMPACT_MESH*/,
206 const ::MeshDimension aDim /*=::MeshDim_3D*/,
207 TSetOfInt* aShapesId /*=0*/,
208 TopTools_IndexedMapOfShape* anAllowedSubShapes/*=0*/)
212 const bool aShapeOnly = aFlags & SHAPE_ONLY;
213 const bool anUpward = aFlags & UPWARD;
214 const bool aCompactMesh = aFlags & COMPACT_MESH;
218 SMESH_subMesh *sm, *shapeSM = aMesh.GetSubMesh(aShape);
220 const bool includeSelf = true;
221 const bool complexShapeFirst = true;
222 const int globalAlgoDim = 100;
224 // Pool of thread for computation
225 if(aMesh.IsParallel())
226 aMesh.InitPoolThreads();
228 SMESH_subMeshIteratorPtr smIt;
230 // Fix of Issue 22150. Due to !BLSURF->OnlyUnaryInput(), BLSURF computes edges
231 // that must be computed by Projection 1D-2D while the Projection asks to compute
233 SMESH_subMesh::compute_event computeEvent =
234 aShapeOnly ? SMESH_subMesh::COMPUTE_SUBMESH : SMESH_subMesh::COMPUTE;
235 if ( !aMesh.HasShapeToMesh() )
236 computeEvent = SMESH_subMesh::COMPUTE_NOGEOM; // if several algos and no geometry
238 TopTools_IndexedMapOfShape *allowedSubShapes = anAllowedSubShapes, allowedSub;
239 if ( aShapeOnly && !allowedSubShapes )
240 allowedSubShapes = &allowedSub;
242 if ( anUpward ) // is called from the below code in this method
244 // ===============================================
245 // Mesh all the sub-shapes starting from vertices
246 // ===============================================
248 TopAbs_ShapeEnum previousShapeType = TopAbs_VERTEX;
249 std::vector<std::future<void>> pending;
251 smIt = shapeSM->getDependsOnIterator(includeSelf, !complexShapeFirst);
252 while ( smIt->more() )
254 SMESH_subMesh* smToCompute = smIt->next();
256 // do not mesh vertices of a pseudo shape
257 const TopoDS_Shape& shape = smToCompute->GetSubShape();
258 const TopAbs_ShapeEnum shapeType = shape.ShapeType();
259 if ( !aMesh.HasShapeToMesh() && shapeType == TopAbs_VERTEX )
262 //DEBUG std::cout << "Shape Type" << shapeType << " previous" << previousShapeType << std::endl;
263 if (aMesh.IsParallel() && shapeType != previousShapeType) {
264 // Waiting for all threads for the previous type to end
265 for(auto &it: pending){
268 std::string file_name;
269 switch(previousShapeType){
271 file_name = "Mesh2D.med";
274 file_name = "Mesh1D.med";
277 file_name = "Mesh0D.med";
285 fs::path mesh_file = fs::path(aMesh.tmp_folder) / fs::path(file_name);
286 // TODO: change mesh name
287 export_mesh(mesh_file.string(), aMesh, "Maillage_1");
290 //Resetting threaded pool info
291 previousShapeType = shapeType;
295 // check for preview dimension limitations
296 if ( aShapesId && GetShapeDim( shapeType ) > (int)aDim )
298 // clear compute state not to show previous compute errors
299 // if preview invoked less dimension less than previous
300 smToCompute->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
303 if(aMesh.IsParallel())
305 pending.push_back(aMesh._pool->push(compute_function, smToCompute, computeEvent,
306 shapeSM, aShapeOnly, allowedSubShapes,
309 compute_function(1 ,smToCompute, computeEvent,
310 shapeSM, aShapeOnly, allowedSubShapes,
313 if (smToCompute->GetComputeState() == SMESH_subMesh::FAILED_TO_COMPUTE &&
314 ( shapeType != TopAbs_EDGE || !SMESH_Algo::isDegenerated( TopoDS::Edge( shape ))))
316 else if ( aShapesId )
317 aShapesId->insert( smToCompute->GetId() );
321 // TODO: Check error handling in parallel mode
322 if(aMesh.IsParallel()){
323 // Waiting for the thread for Solids to finish
324 for(auto &it:pending){
330 aMesh.GetMeshDS()->Modified();
335 // ================================================================
336 // Apply algos that do NOT require discretized boundaries
337 // ("all-dimensional") and do NOT support sub-meshes, starting from
338 // the most complex shapes and collect sub-meshes with algos that
339 // DO support sub-meshes
340 // ================================================================
342 list< SMESH_subMesh* > smWithAlgoSupportingSubmeshes[4]; // for each dim
344 // map to sort sm with same dim algos according to dim of
345 // the shape the algo assigned to (issue 0021217).
346 // Other issues influenced the algo applying order:
347 // 21406, 21556, 21893, 20206
348 multimap< int, SMESH_subMesh* > shDim2sm;
349 multimap< int, SMESH_subMesh* >::reverse_iterator shDim2smIt;
350 TopoDS_Shape algoShape;
351 int prevShapeDim = -1, aShapeDim;
353 smIt = shapeSM->getDependsOnIterator(includeSelf, complexShapeFirst);
354 while ( smIt->more() )
356 SMESH_subMesh* smToCompute = smIt->next();
357 if ( smToCompute->GetComputeState() != SMESH_subMesh::READY_TO_COMPUTE )
360 const TopoDS_Shape& aSubShape = smToCompute->GetSubShape();
361 aShapeDim = GetShapeDim( aSubShape );
362 if ( aShapeDim < 1 ) break;
364 // check for preview dimension limitations
365 if ( aShapesId && aShapeDim > (int)aDim )
368 SMESH_Algo* algo = GetAlgo( smToCompute, &algoShape );
369 if ( algo && !algo->NeedDiscreteBoundary() )
371 if ( algo->SupportSubmeshes() )
373 // reload sub-meshes from shDim2sm into smWithAlgoSupportingSubmeshes
374 // so that more local algos to go first
375 if ( prevShapeDim != aShapeDim )
377 prevShapeDim = aShapeDim;
378 for ( shDim2smIt = shDim2sm.rbegin(); shDim2smIt != shDim2sm.rend(); ++shDim2smIt )
379 if ( shDim2smIt->first == globalAlgoDim )
380 smWithAlgoSupportingSubmeshes[ aShapeDim ].push_back( shDim2smIt->second );
382 smWithAlgoSupportingSubmeshes[ aShapeDim ].push_front( shDim2smIt->second );
385 // add smToCompute to shDim2sm map
386 if ( algoShape.IsSame( aMesh.GetShapeToMesh() ))
388 aShapeDim = globalAlgoDim; // to compute last
392 aShapeDim = GetShapeDim( algoShape );
393 if ( algoShape.ShapeType() == TopAbs_COMPOUND )
395 TopoDS_Iterator it( algoShape );
396 aShapeDim += GetShapeDim( it.Value() );
399 shDim2sm.insert( make_pair( aShapeDim, smToCompute ));
401 else // Compute w/o support of sub-meshes
403 if (_compute_canceled)
405 smToCompute->SetAllowedSubShapes( fillAllowed( shapeSM, aShapeOnly, allowedSubShapes ));
406 setCurrentSubMesh( smToCompute );
407 smToCompute->ComputeStateEngine( computeEvent );
408 setCurrentSubMesh( nullptr );
409 smToCompute->SetAllowedSubShapes( nullptr );
411 aShapesId->insert( smToCompute->GetId() );
415 // reload sub-meshes from shDim2sm into smWithAlgoSupportingSubmeshes
416 for ( shDim2smIt = shDim2sm.rbegin(); shDim2smIt != shDim2sm.rend(); ++shDim2smIt )
417 if ( shDim2smIt->first == globalAlgoDim )
418 smWithAlgoSupportingSubmeshes[3].push_back( shDim2smIt->second );
420 smWithAlgoSupportingSubmeshes[0].push_front( shDim2smIt->second );
422 // ======================================================
423 // Apply all-dimensional algorithms supporing sub-meshes
424 // ======================================================
426 std::vector< SMESH_subMesh* > smVec;
427 for ( aShapeDim = 0; aShapeDim < 4; ++aShapeDim )
428 smVec.insert( smVec.end(),
429 smWithAlgoSupportingSubmeshes[aShapeDim].begin(),
430 smWithAlgoSupportingSubmeshes[aShapeDim].end() );
432 // gather sub-shapes with local uni-dimensional algos (bos #29143)
433 // ----------------------------------------------------------------
434 TopTools_MapOfShape uniDimAlgoShapes;
435 if ( !smVec.empty() )
437 ShapeToHypothesis::Iterator s2hyps( aMesh.GetMeshDS()->GetHypotheses() );
438 for ( ; s2hyps.More(); s2hyps.Next() )
440 const TopoDS_Shape& s = s2hyps.Key();
441 if ( s.IsSame( aMesh.GetShapeToMesh() ))
443 for ( auto & hyp : s2hyps.Value() )
445 if ( const SMESH_Algo* algo = dynamic_cast< const SMESH_Algo*>( hyp ))
446 if ( algo->NeedDiscreteBoundary() )
448 TopAbs_ShapeEnum sType;
449 switch ( algo->GetDim() ) {
450 case 3: sType = TopAbs_SOLID; break;
451 case 2: sType = TopAbs_FACE; break;
452 default: sType = TopAbs_EDGE; break;
454 for ( TopExp_Explorer ex( s2hyps.Key(), sType ); ex.More(); ex.Next() )
455 uniDimAlgoShapes.Add( ex.Current() );
462 // ------------------------------------------------
463 // sort list of sub-meshes according to mesh order
464 // ------------------------------------------------
465 aMesh.SortByMeshOrder( smVec );
467 // ------------------------------------------------------------
468 // compute sub-meshes with local uni-dimensional algos under
469 // sub-meshes with all-dimensional algos
470 // ------------------------------------------------------------
471 // start from lower shapes
472 for ( size_t i = 0; i < smVec.size(); ++i )
475 if ( sm->GetComputeState() != SMESH_subMesh::READY_TO_COMPUTE)
478 const TopAbs_ShapeEnum shapeType = sm->GetSubShape().ShapeType();
480 if ( !uniDimAlgoShapes.IsEmpty() )
482 // get a shape the algo is assigned to
483 if ( !GetAlgo( sm, & algoShape ))
484 continue; // strange...
486 // look for more local algos
487 if ( SMESH_subMesh* algoSM = aMesh.GetSubMesh( algoShape ))
488 smIt = algoSM->getDependsOnIterator(!includeSelf, !complexShapeFirst);
490 smIt = sm->getDependsOnIterator(!includeSelf, !complexShapeFirst);
492 while ( smIt->more() )
494 SMESH_subMesh* smToCompute = smIt->next();
496 const TopoDS_Shape& aSubShape = smToCompute->GetSubShape();
497 const int aShapeDim = GetShapeDim( aSubShape );
498 if ( aShapeDim < 1 || aSubShape.ShapeType() <= shapeType )
500 if ( !uniDimAlgoShapes.Contains( aSubShape ))
501 continue; // [bos #29143] aMesh.GetHypothesis() is too long
503 // check for preview dimension limitations
504 if ( aShapesId && GetShapeDim( aSubShape.ShapeType() ) > (int)aDim )
507 SMESH_HypoFilter filter( SMESH_HypoFilter::IsAlgo() );
509 .And( SMESH_HypoFilter::IsApplicableTo( aSubShape ))
510 .And( SMESH_HypoFilter::IsMoreLocalThan( algoShape, aMesh ));
512 if ( SMESH_Algo* subAlgo = (SMESH_Algo*) aMesh.GetHypothesis( smToCompute, filter, true))
514 if ( ! subAlgo->NeedDiscreteBoundary() ) continue;
515 TopTools_IndexedMapOfShape* localAllowed = allowedSubShapes;
516 if ( localAllowed && localAllowed->IsEmpty() )
517 localAllowed = 0; // prevent fillAllowed() with aSubShape
519 SMESH_Hypothesis::Hypothesis_Status status;
520 if ( subAlgo->CheckHypothesis( aMesh, aSubShape, status ))
521 // mesh a lower smToCompute starting from vertices
522 Compute( aMesh, aSubShape, aFlags | SHAPE_ONLY_UPWARD, aDim, aShapesId, localAllowed );
526 // --------------------------------
527 // apply the all-dimensional algo
528 // --------------------------------
530 if (_compute_canceled)
532 // check for preview dimension limitations
533 if ( aShapesId && GetShapeDim( shapeType ) > (int)aDim )
535 sm->SetAllowedSubShapes( fillAllowed( shapeSM, aShapeOnly, allowedSubShapes ));
536 setCurrentSubMesh( sm );
537 sm->ComputeStateEngine( computeEvent );
538 setCurrentSubMesh( NULL );
539 sm->SetAllowedSubShapes( nullptr );
541 aShapesId->insert( sm->GetId() );
546 // -----------------------------------------------
547 // mesh the rest sub-shapes starting from vertices
548 // -----------------------------------------------
549 ret = Compute( aMesh, aShape, aFlags | UPWARD, aDim, aShapesId, allowedSubShapes );
554 // fix quadratic mesh by bending iternal links near concave boundary
555 if ( aCompactMesh && // a final compute
556 aShape.IsSame( aMesh.GetShapeToMesh() ) &&
557 !aShapesId && // not preview
558 ret ) // everything is OK
560 SMESH_MesherHelper aHelper( aMesh );
561 if ( aHelper.IsQuadraticMesh() != SMESH_MesherHelper::LINEAR )
563 aHelper.FixQuadraticElements( shapeSM->GetComputeError() );
569 aMesh.GetMeshDS()->Modified();
570 aMesh.GetMeshDS()->CompactMesh();
575 //=============================================================================
577 * Prepare Compute a mesh
579 //=============================================================================
580 void SMESH_Gen::PrepareCompute(SMESH_Mesh & /*aMesh*/,
581 const TopoDS_Shape & /*aShape*/)
583 _compute_canceled = false;
584 resetCurrentSubMesh();
587 //=============================================================================
589 * Cancel Compute a mesh
591 //=============================================================================
592 void SMESH_Gen::CancelCompute(SMESH_Mesh & /*aMesh*/,
593 const TopoDS_Shape & /*aShape*/)
595 _compute_canceled = true;
596 if ( const SMESH_subMesh* sm = GetCurrentSubMesh() )
598 const_cast< SMESH_subMesh* >( sm )->ComputeStateEngine( SMESH_subMesh::COMPUTE_CANCELED );
600 resetCurrentSubMesh();
603 //================================================================================
605 * \brief Returns a sub-mesh being currently computed
607 //================================================================================
609 const SMESH_subMesh* SMESH_Gen::GetCurrentSubMesh() const
611 return _sm_current.empty() ? 0 : _sm_current.back();
614 //================================================================================
616 * \brief Sets a sub-mesh being currently computed.
618 * An algorithm can call Compute() for a sub-shape, hence we keep a stack of sub-meshes
620 //================================================================================
622 void SMESH_Gen::setCurrentSubMesh(SMESH_subMesh* sm)
625 _sm_current.push_back( sm );
627 else if ( !_sm_current.empty() )
628 _sm_current.pop_back();
631 void SMESH_Gen::resetCurrentSubMesh()
636 //=============================================================================
640 //=============================================================================
642 bool SMESH_Gen::Evaluate(SMESH_Mesh & aMesh,
643 const TopoDS_Shape & aShape,
644 MapShapeNbElems& aResMap,
646 TSetOfInt* aShapesId)
650 SMESH_subMesh *sm = aMesh.GetSubMesh(aShape);
652 const bool includeSelf = true;
653 const bool complexShapeFirst = true;
654 SMESH_subMeshIteratorPtr smIt;
656 if ( anUpward ) { // is called from below code here
657 // -----------------------------------------------
658 // mesh all the sub-shapes starting from vertices
659 // -----------------------------------------------
660 smIt = sm->getDependsOnIterator(includeSelf, !complexShapeFirst);
661 while ( smIt->more() ) {
662 SMESH_subMesh* smToCompute = smIt->next();
664 // do not mesh vertices of a pseudo shape
665 const TopAbs_ShapeEnum shapeType = smToCompute->GetSubShape().ShapeType();
666 //if ( !aMesh.HasShapeToMesh() && shapeType == TopAbs_VERTEX )
668 if ( !aMesh.HasShapeToMesh() ) {
669 if( shapeType == TopAbs_VERTEX || shapeType == TopAbs_WIRE ||
670 shapeType == TopAbs_SHELL )
674 smToCompute->Evaluate(aResMap);
676 aShapesId->insert( smToCompute->GetId() );
681 // -----------------------------------------------------------------
682 // apply algos that DO NOT require Discreteized boundaries and DO NOT
683 // support sub-meshes, starting from the most complex shapes
684 // and collect sub-meshes with algos that DO support sub-meshes
685 // -----------------------------------------------------------------
686 list< SMESH_subMesh* > smWithAlgoSupportingSubmeshes;
687 smIt = sm->getDependsOnIterator(includeSelf, complexShapeFirst);
688 while ( smIt->more() ) {
689 SMESH_subMesh* smToCompute = smIt->next();
690 const TopoDS_Shape& aSubShape = smToCompute->GetSubShape();
691 const int aShapeDim = GetShapeDim( aSubShape );
692 if ( aShapeDim < 1 ) break;
694 SMESH_Algo* algo = GetAlgo( smToCompute );
695 if ( algo && !algo->NeedDiscreteBoundary() ) {
696 if ( algo->SupportSubmeshes() ) {
697 smWithAlgoSupportingSubmeshes.push_front( smToCompute );
700 smToCompute->Evaluate(aResMap);
702 aShapesId->insert( smToCompute->GetId() );
707 // ------------------------------------------------------------
708 // sort list of meshes according to mesh order
709 // ------------------------------------------------------------
710 std::vector< SMESH_subMesh* > smVec( smWithAlgoSupportingSubmeshes.begin(),
711 smWithAlgoSupportingSubmeshes.end() );
712 aMesh.SortByMeshOrder( smVec );
714 // ------------------------------------------------------------
715 // compute sub-meshes under shapes with algos that DO NOT require
716 // Discreteized boundaries and DO support sub-meshes
717 // ------------------------------------------------------------
718 // start from lower shapes
719 for ( size_t i = 0; i < smVec.size(); ++i )
723 // get a shape the algo is assigned to
724 TopoDS_Shape algoShape;
725 if ( !GetAlgo( sm, & algoShape ))
726 continue; // strange...
728 // look for more local algos
729 smIt = sm->getDependsOnIterator(!includeSelf, !complexShapeFirst);
730 while ( smIt->more() ) {
731 SMESH_subMesh* smToCompute = smIt->next();
733 const TopoDS_Shape& aSubShape = smToCompute->GetSubShape();
734 const int aShapeDim = GetShapeDim( aSubShape );
735 if ( aShapeDim < 1 ) continue;
737 SMESH_HypoFilter filter( SMESH_HypoFilter::IsAlgo() );
739 .And( SMESH_HypoFilter::IsApplicableTo( aSubShape ))
740 .And( SMESH_HypoFilter::IsMoreLocalThan( algoShape, aMesh ));
742 if ( SMESH_Algo* subAlgo = (SMESH_Algo*) aMesh.GetHypothesis( smToCompute, filter, true ))
744 if ( ! subAlgo->NeedDiscreteBoundary() ) continue;
745 SMESH_Hypothesis::Hypothesis_Status status;
746 if ( subAlgo->CheckHypothesis( aMesh, aSubShape, status ))
747 // mesh a lower smToCompute starting from vertices
748 Evaluate( aMesh, aSubShape, aResMap, /*anUpward=*/true, aShapesId );
752 // ----------------------------------------------------------
753 // apply the algos that do not require Discreteized boundaries
754 // ----------------------------------------------------------
755 for ( size_t i = 0; i < smVec.size(); ++i )
758 sm->Evaluate(aResMap);
760 aShapesId->insert( sm->GetId() );
763 // -----------------------------------------------
764 // mesh the rest sub-shapes starting from vertices
765 // -----------------------------------------------
766 ret = Evaluate( aMesh, aShape, aResMap, /*anUpward=*/true, aShapesId );
773 //=======================================================================
774 //function : checkConformIgnoredAlgos
776 //=======================================================================
778 static bool checkConformIgnoredAlgos(SMESH_Mesh& aMesh,
779 SMESH_subMesh* aSubMesh,
780 const SMESH_Algo* aGlobIgnoAlgo,
781 const SMESH_Algo* aLocIgnoAlgo,
783 set<SMESH_subMesh*>& aCheckedMap,
784 list< SMESH_Gen::TAlgoStateError > & theErrors)
787 if ( aSubMesh->GetSubShape().ShapeType() == TopAbs_VERTEX)
793 const list<const SMESHDS_Hypothesis*>& listHyp =
794 aMesh.GetMeshDS()->GetHypothesis( aSubMesh->GetSubShape() );
795 list<const SMESHDS_Hypothesis*>::const_iterator it=listHyp.begin();
796 for ( ; it != listHyp.end(); it++)
798 const SMESHDS_Hypothesis * aHyp = *it;
799 if (aHyp->GetType() == SMESHDS_Hypothesis::PARAM_ALGO)
802 const SMESH_Algo* algo = dynamic_cast<const SMESH_Algo*> (aHyp);
805 if ( aLocIgnoAlgo ) // algo is hidden by a local algo of upper dim
807 theErrors.push_back( SMESH_Gen::TAlgoStateError() );
808 theErrors.back().Set( SMESH_Hypothesis::HYP_HIDDEN_ALGO, algo, false );
809 INFOS( "Local <" << algo->GetName() << "> is hidden by local <"
810 << aLocIgnoAlgo->GetName() << ">");
814 bool isGlobal = (aMesh.IsMainShape( aSubMesh->GetSubShape() ));
815 int dim = algo->GetDim();
816 int aMaxGlobIgnoDim = ( aGlobIgnoAlgo ? aGlobIgnoAlgo->GetDim() : -1 );
817 bool isNeededDim = ( aGlobIgnoAlgo ? aGlobIgnoAlgo->NeedLowerHyps( dim ) : false );
819 if (( dim < aMaxGlobIgnoDim && !isNeededDim ) &&
820 ( isGlobal || !aGlobIgnoAlgo->SupportSubmeshes() ))
822 // algo is hidden by a global algo
823 theErrors.push_back( SMESH_Gen::TAlgoStateError() );
824 theErrors.back().Set( SMESH_Hypothesis::HYP_HIDDEN_ALGO, algo, true );
825 INFOS( ( isGlobal ? "Global" : "Local" )
826 << " <" << algo->GetName() << "> is hidden by global <"
827 << aGlobIgnoAlgo->GetName() << ">");
829 else if ( !algo->NeedDiscreteBoundary() && !isGlobal)
831 // local algo is not hidden and hides algos on sub-shapes
832 if (checkConform && !aSubMesh->IsConform( algo ))
835 checkConform = false; // no more check conformity
836 INFOS( "ERROR: Local <" << algo->GetName() <<
837 "> would produce not conform mesh: "
838 "<Not Conform Mesh Allowed> hypothesis is missing");
839 theErrors.push_back( SMESH_Gen::TAlgoStateError() );
840 theErrors.back().Set( SMESH_Hypothesis::HYP_NOTCONFORM, algo, false );
843 // sub-algos will be hidden by a local <algo> if <algo> does not support sub-meshes
844 if ( algo->SupportSubmeshes() )
846 SMESH_subMeshIteratorPtr revItSub =
847 aSubMesh->getDependsOnIterator( /*includeSelf=*/false, /*complexShapeFirst=*/true);
848 bool checkConform2 = false;
849 while ( revItSub->more() )
851 SMESH_subMesh* sm = revItSub->next();
852 checkConformIgnoredAlgos (aMesh, sm, aGlobIgnoAlgo,
853 algo, checkConform2, aCheckedMap, theErrors);
854 aCheckedMap.insert( sm );
863 //=======================================================================
864 //function : checkMissing
865 //purpose : notify on missing hypothesis
866 // Return false if algo or hipothesis is missing
867 //=======================================================================
869 static bool checkMissing(SMESH_Gen* aGen,
871 SMESH_subMesh* aSubMesh,
872 const int aTopAlgoDim,
874 const bool checkNoAlgo,
875 set<SMESH_subMesh*>& aCheckedMap,
876 list< SMESH_Gen::TAlgoStateError > & theErrors)
878 switch ( aSubMesh->GetSubShape().ShapeType() )
882 case TopAbs_SOLID: break; // check this sub-mesh, it can be meshed
884 return true; // not meshable sub-mesh
886 if ( aCheckedMap.count( aSubMesh ))
890 SMESH_Algo* algo = 0;
892 switch (aSubMesh->GetAlgoState())
894 case SMESH_subMesh::NO_ALGO: {
897 // should there be any algo?
898 int shapeDim = SMESH_Gen::GetShapeDim( aSubMesh->GetSubShape() );
899 if (aTopAlgoDim > shapeDim)
901 MESSAGE( "ERROR: " << shapeDim << "D algorithm is missing" );
903 theErrors.push_back( SMESH_Gen::TAlgoStateError() );
904 theErrors.back().Set( SMESH_Hypothesis::HYP_MISSING, shapeDim, true );
909 case SMESH_subMesh::MISSING_HYP: {
910 // notify if an algo missing hyp is attached to aSubMesh
911 algo = aSubMesh->GetAlgo();
913 bool IsGlobalHypothesis = aGen->IsGlobalHypothesis( algo, aMesh );
914 if (!IsGlobalHypothesis || !globalChecked[ algo->GetDim() ])
916 TAlgoStateErrorName errName = SMESH_Hypothesis::HYP_MISSING;
917 SMESH_Hypothesis::Hypothesis_Status status;
918 algo->CheckHypothesis( aMesh, aSubMesh->GetSubShape(), status );
919 if ( status == SMESH_Hypothesis::HYP_BAD_PARAMETER ) {
920 MESSAGE( "ERROR: hypothesis of " << (IsGlobalHypothesis ? "Global " : "Local ")
921 << "<" << algo->GetName() << "> has a bad parameter value");
923 } else if ( status == SMESH_Hypothesis::HYP_BAD_GEOMETRY ) {
924 MESSAGE( "ERROR: " << (IsGlobalHypothesis ? "Global " : "Local ")
925 << "<" << algo->GetName() << "> assigned to mismatching geometry");
928 MESSAGE( "ERROR: " << (IsGlobalHypothesis ? "Global " : "Local ")
929 << "<" << algo->GetName() << "> misses some hypothesis");
931 if (IsGlobalHypothesis)
932 globalChecked[ algo->GetDim() ] = true;
933 theErrors.push_back( SMESH_Gen::TAlgoStateError() );
934 theErrors.back().Set( errName, algo, IsGlobalHypothesis );
939 case SMESH_subMesh::HYP_OK:
940 algo = aSubMesh->GetAlgo();
942 if (!algo->NeedDiscreteBoundary())
944 SMESH_subMeshIteratorPtr itsub = aSubMesh->getDependsOnIterator( /*includeSelf=*/false,
945 /*complexShapeFirst=*/false);
946 while ( itsub->more() )
947 aCheckedMap.insert( itsub->next() );
953 // do not check under algo that hides sub-algos or
954 // re-start checking NO_ALGO state
956 bool isTopLocalAlgo =
957 ( aTopAlgoDim <= algo->GetDim() && !aGen->IsGlobalHypothesis( algo, aMesh ));
958 if (!algo->NeedDiscreteBoundary() || isTopLocalAlgo)
960 bool checkNoAlgo2 = ( algo->NeedDiscreteBoundary() );
961 SMESH_subMeshIteratorPtr itsub = aSubMesh->getDependsOnIterator( /*includeSelf=*/false,
962 /*complexShapeFirst=*/true);
963 while ( itsub->more() )
965 // sub-meshes should not be checked further more
966 SMESH_subMesh* sm = itsub->next();
970 //check algo on sub-meshes
971 int aTopAlgoDim2 = algo->GetDim();
972 if (!checkMissing (aGen, aMesh, sm, aTopAlgoDim2,
973 globalChecked, checkNoAlgo2, aCheckedMap, theErrors))
976 if (sm->GetAlgoState() == SMESH_subMesh::NO_ALGO )
977 checkNoAlgo2 = false;
980 aCheckedMap.insert( sm );
986 //=======================================================================
987 //function : CheckAlgoState
988 //purpose : notify on bad state of attached algos, return false
989 // if Compute() would fail because of some algo bad state
990 //=======================================================================
992 bool SMESH_Gen::CheckAlgoState(SMESH_Mesh& aMesh, const TopoDS_Shape& aShape)
994 list< TAlgoStateError > errors;
995 return GetAlgoState( aMesh, aShape, errors );
998 //=======================================================================
999 //function : GetAlgoState
1000 //purpose : notify on bad state of attached algos, return false
1001 // if Compute() would fail because of some algo bad state
1002 // theErrors list contains problems description
1003 //=======================================================================
1005 bool SMESH_Gen::GetAlgoState(SMESH_Mesh& theMesh,
1006 const TopoDS_Shape& theShape,
1007 list< TAlgoStateError > & theErrors)
1010 bool hasAlgo = false;
1012 SMESH_subMesh* sm = theMesh.GetSubMesh(theShape);
1013 const SMESHDS_Mesh* meshDS = theMesh.GetMeshDS();
1014 TopoDS_Shape mainShape = meshDS->ShapeToMesh();
1016 // -----------------
1018 // -----------------
1020 const SMESH_Algo* aGlobAlgoArr[] = {0,0,0,0};
1022 const list<const SMESHDS_Hypothesis*>& listHyp = meshDS->GetHypothesis( mainShape );
1023 list<const SMESHDS_Hypothesis*>::const_iterator it=listHyp.begin();
1024 for ( ; it != listHyp.end(); it++)
1026 const SMESHDS_Hypothesis * aHyp = *it;
1027 if (aHyp->GetType() == SMESHDS_Hypothesis::PARAM_ALGO)
1030 const SMESH_Algo* algo = dynamic_cast<const SMESH_Algo*> (aHyp);
1033 int dim = algo->GetDim();
1034 aGlobAlgoArr[ dim ] = algo;
1039 // --------------------------------------------------------
1040 // info on algos that will be ignored because of ones that
1041 // don't NeedDiscreteBoundary() attached to super-shapes,
1042 // check that a conform mesh will be produced
1043 // --------------------------------------------------------
1046 // find a global algo possibly hiding sub-algos
1048 const SMESH_Algo* aGlobIgnoAlgo = 0;
1049 for (dim = 3; dim > 0; dim--)
1051 if (aGlobAlgoArr[ dim ] &&
1052 !aGlobAlgoArr[ dim ]->NeedDiscreteBoundary() /*&&
1053 !aGlobAlgoArr[ dim ]->SupportSubmeshes()*/ )
1055 aGlobIgnoAlgo = aGlobAlgoArr[ dim ];
1060 set<SMESH_subMesh*> aCheckedSubs;
1061 bool checkConform = ( !theMesh.IsNotConformAllowed() );
1063 // loop on theShape and its sub-shapes
1064 SMESH_subMeshIteratorPtr revItSub = sm->getDependsOnIterator( /*includeSelf=*/true,
1065 /*complexShapeFirst=*/true);
1066 while ( revItSub->more() )
1068 SMESH_subMesh* smToCheck = revItSub->next();
1069 if ( smToCheck->GetSubShape().ShapeType() == TopAbs_VERTEX)
1072 if ( aCheckedSubs.insert( smToCheck ).second ) // not yet checked
1073 if (!checkConformIgnoredAlgos (theMesh, smToCheck, aGlobIgnoAlgo,
1074 0, checkConform, aCheckedSubs, theErrors))
1077 if ( smToCheck->GetAlgoState() != SMESH_subMesh::NO_ALGO )
1081 // ----------------------------------------------------------------
1082 // info on missing hypothesis and find out if all needed algos are
1084 // ----------------------------------------------------------------
1086 // find max dim of global algo
1087 int aTopAlgoDim = 0;
1088 for (dim = 3; dim > 0; dim--)
1090 if (aGlobAlgoArr[ dim ])
1096 bool checkNoAlgo = theMesh.HasShapeToMesh() ? bool( aTopAlgoDim ) : false;
1097 bool globalChecked[] = { false, false, false, false };
1099 // loop on theShape and its sub-shapes
1100 aCheckedSubs.clear();
1101 revItSub = sm->getDependsOnIterator( /*includeSelf=*/true, /*complexShapeFirst=*/true);
1102 while ( revItSub->more() )
1104 SMESH_subMesh* smToCheck = revItSub->next();
1105 if ( smToCheck->GetSubShape().ShapeType() == TopAbs_VERTEX)
1108 if (!checkMissing (this, theMesh, smToCheck, aTopAlgoDim,
1109 globalChecked, checkNoAlgo, aCheckedSubs, theErrors))
1112 if (smToCheck->GetAlgoState() == SMESH_subMesh::NO_ALGO )
1113 checkNoAlgo = false;
1119 theErrors.push_back( TAlgoStateError() );
1120 theErrors.back().Set( SMESH_Hypothesis::HYP_MISSING, theMesh.HasShapeToMesh() ? 1 : 3, true );
1126 //=======================================================================
1127 //function : IsGlobalHypothesis
1128 //purpose : check if theAlgo is attached to the main shape
1129 //=======================================================================
1131 bool SMESH_Gen::IsGlobalHypothesis(const SMESH_Hypothesis* theHyp, SMESH_Mesh& aMesh)
1133 SMESH_HypoFilter filter( SMESH_HypoFilter::Is( theHyp ));
1134 return aMesh.GetHypothesis( aMesh.GetMeshDS()->ShapeToMesh(), filter, false );
1137 //================================================================================
1139 * \brief Return paths to xml files of plugins
1141 //================================================================================
1143 std::vector< std::string > SMESH_Gen::GetPluginXMLPaths()
1145 // Get paths to xml files of plugins
1146 vector< string > xmlPaths;
1148 if ( const char* meshersList = getenv("SMESH_MeshersList") )
1150 string meshers = meshersList, plugin;
1151 string::size_type from = 0, pos;
1152 while ( from < meshers.size() )
1154 // cut off plugin name
1155 pos = meshers.find( env_sep, from );
1156 if ( pos != string::npos )
1157 plugin = meshers.substr( from, pos-from );
1159 plugin = meshers.substr( from ), pos = meshers.size();
1162 // get PLUGIN_ROOT_DIR path
1163 string rootDirVar, pluginSubDir = plugin;
1164 if ( plugin == "StdMeshers" )
1165 rootDirVar = "SMESH", pluginSubDir = "smesh";
1167 for ( pos = 0; pos < plugin.size(); ++pos )
1168 rootDirVar += toupper( plugin[pos] );
1169 rootDirVar += "_ROOT_DIR";
1171 const char* rootDir = getenv( rootDirVar.c_str() );
1172 if ( !rootDir || strlen(rootDir) == 0 )
1174 rootDirVar = plugin + "_ROOT_DIR"; // HexoticPLUGIN_ROOT_DIR
1175 rootDir = getenv( rootDirVar.c_str() );
1176 if ( !rootDir || strlen(rootDir) == 0 ) continue;
1179 // get a separator from rootDir
1180 for ( int i = strlen( rootDir )-1; i >= 0 && sep.empty(); --i )
1181 if ( rootDir[i] == '/' || rootDir[i] == '\\' )
1187 if (sep.empty() ) sep = "\\";
1189 if (sep.empty() ) sep = "/";
1192 // get a path to resource file
1193 string xmlPath = rootDir;
1194 if ( xmlPath[ xmlPath.size()-1 ] != sep[0] )
1196 xmlPath += "share" + sep + "salome" + sep + "resources" + sep;
1197 for ( pos = 0; pos < pluginSubDir.size(); ++pos )
1198 xmlPath += tolower( pluginSubDir[pos] );
1199 xmlPath += sep + plugin + ".xml";
1203 const wchar_t* path = Kernel_Utils::decode_s(xmlPath);
1204 SMESHUtils::ArrayDeleter<const wchar_t> deleter( path );
1206 const char* path = xmlPath.c_str();
1208 fileOK = (GetFileAttributes(path) != INVALID_FILE_ATTRIBUTES);
1211 fileOK = (access(xmlPath.c_str(), F_OK) == 0);
1214 xmlPaths.push_back( xmlPath );
1221 //=============================================================================
1223 * Finds algo to mesh a shape. Optionally returns a shape the found algo is bound to
1225 //=============================================================================
1227 SMESH_Algo *SMESH_Gen::GetAlgo(SMESH_Mesh & aMesh,
1228 const TopoDS_Shape & aShape,
1229 TopoDS_Shape* assignedTo)
1231 return GetAlgo( aMesh.GetSubMesh( aShape ), assignedTo );
1234 //=============================================================================
1236 * Finds algo to mesh a sub-mesh. Optionally returns a shape the found algo is bound to
1238 //=============================================================================
1240 SMESH_Algo *SMESH_Gen::GetAlgo(SMESH_subMesh * aSubMesh,
1241 TopoDS_Shape* assignedTo)
1243 if ( !aSubMesh ) return 0;
1245 const TopoDS_Shape & aShape = aSubMesh->GetSubShape();
1246 SMESH_Mesh& aMesh = *aSubMesh->GetFather();
1248 SMESH_HypoFilter filter( SMESH_HypoFilter::IsAlgo() );
1249 if ( aMesh.HasShapeToMesh() )
1250 filter.And( filter.IsApplicableTo( aShape ));
1252 typedef SMESH_Algo::Features AlgoData;
1254 TopoDS_Shape assignedToShape;
1256 (SMESH_Algo*) aMesh.GetHypothesis( aSubMesh, filter, true, &assignedToShape );
1259 aShape.ShapeType() == TopAbs_FACE &&
1260 !aShape.IsSame( assignedToShape ) &&
1261 SMESH_MesherHelper::NbAncestors( aShape, aMesh, TopAbs_SOLID ) > 1 )
1263 // Issue 0021559. If there is another 2D algo with different types of output
1264 // elements that can be used to mesh aShape, and 3D algos on adjacent SOLIDs
1265 // have different types of input elements, we choose a most appropriate 2D algo.
1267 // try to find a concurrent 2D algo
1268 filter.AndNot( filter.Is( algo ));
1269 TopoDS_Shape assignedToShape2;
1271 (SMESH_Algo*) aMesh.GetHypothesis( aSubMesh, filter, true, &assignedToShape2 );
1272 if ( algo2 && // algo found
1273 !assignedToShape2.IsSame( aMesh.GetShapeToMesh() ) && // algo is local
1274 ( SMESH_MesherHelper::GetGroupType( assignedToShape2 ) == // algo of the same level
1275 SMESH_MesherHelper::GetGroupType( assignedToShape )) &&
1276 aMesh.IsOrderOK( aMesh.GetSubMesh( assignedToShape2 ), // no forced order
1277 aMesh.GetSubMesh( assignedToShape )))
1279 // get algos on the adjacent SOLIDs
1280 filter.Init( filter.IsAlgo() ).And( filter.HasDim( 3 ));
1281 vector< SMESH_Algo* > algos3D;
1282 PShapeIteratorPtr solidIt = SMESH_MesherHelper::GetAncestors( aShape, aMesh,
1284 while ( const TopoDS_Shape* solid = solidIt->next() )
1285 if ( SMESH_Algo* algo3D = (SMESH_Algo*) aMesh.GetHypothesis( *solid, filter, true ))
1287 algos3D.push_back( algo3D );
1288 filter.AndNot( filter.HasName( algo3D->GetName() ));
1290 // check compatibility of algos
1291 if ( algos3D.size() > 1 )
1293 const AlgoData& algoData = algo->SMESH_Algo::GetFeatures();
1294 const AlgoData& algoData2 = algo2->SMESH_Algo::GetFeatures();
1295 const AlgoData& algoData3d0 = algos3D[0]->SMESH_Algo::GetFeatures();
1296 const AlgoData& algoData3d1 = algos3D[1]->SMESH_Algo::GetFeatures();
1297 if (( algoData2.IsCompatible( algoData3d0 ) &&
1298 algoData2.IsCompatible( algoData3d1 ))
1300 !(algoData.IsCompatible( algoData3d0 ) &&
1301 algoData.IsCompatible( algoData3d1 )))
1307 if ( assignedTo && algo )
1308 * assignedTo = assignedToShape;
1313 //=============================================================================
1315 * Returns StudyContextStruct for a study
1317 //=============================================================================
1319 StudyContextStruct *SMESH_Gen::GetStudyContext()
1321 return _studyContext;
1324 //================================================================================
1326 * \brief Return shape dimension by TopAbs_ShapeEnum
1328 //================================================================================
1330 int SMESH_Gen::GetShapeDim(const TopAbs_ShapeEnum & aShapeType)
1332 static vector<int> dim;
1335 dim.resize( TopAbs_SHAPE, -1 );
1336 dim[ TopAbs_COMPOUND ] = MeshDim_3D;
1337 dim[ TopAbs_COMPSOLID ] = MeshDim_3D;
1338 dim[ TopAbs_SOLID ] = MeshDim_3D;
1339 dim[ TopAbs_SHELL ] = MeshDim_2D;
1340 dim[ TopAbs_FACE ] = MeshDim_2D;
1341 dim[ TopAbs_WIRE ] = MeshDim_1D;
1342 dim[ TopAbs_EDGE ] = MeshDim_1D;
1343 dim[ TopAbs_VERTEX ] = MeshDim_0D;
1345 return dim[ aShapeType ];
1348 //================================================================================
1350 * \brief Return shape dimension by exploding compounds
1352 //================================================================================
1354 int SMESH_Gen::GetFlatShapeDim(const TopoDS_Shape &aShape)
1357 if ( aShape.ShapeType() == TopAbs_COMPOUND ||
1358 aShape.ShapeType() == TopAbs_COMPSOLID )
1360 TopoDS_Iterator it( aShape );
1361 aShapeDim = GetFlatShapeDim( it.Value() );
1364 aShapeDim = GetShapeDim( aShape );
1368 //=============================================================================
1370 * Generate a new id unique within this Gen
1372 //=============================================================================
1374 int SMESH_Gen::GetANewId()