1 // Copyright (C) 2007-2021 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 "SMDS_Mesh.hxx"
34 #include "SMDS_MeshElement.hxx"
35 #include "SMDS_MeshNode.hxx"
36 #include "SMESHDS_Document.hxx"
37 #include "SMESH_HypoFilter.hxx"
38 #include "SMESH_Mesh.hxx"
39 #include "SMESH_MesherHelper.hxx"
40 #include "SMESH_subMesh.hxx"
42 #include "utilities.h"
44 #include "Utils_ExceptHandlers.hxx"
46 #include <TopoDS_Iterator.hxx>
55 #include <Basics_Utils.hxx>
59 // Environment variable separator
68 // a structure used to nullify SMESH_Gen field of SMESH_Hypothesis,
69 // which is needed for SMESH_Hypothesis not deleted before ~SMESH_Gen()
70 struct _Hyp : public SMESH_Hypothesis
78 //================================================================================
80 * \brief Fill a map of shapes with all sub-shape of a sub-mesh
82 //================================================================================
84 TopTools_IndexedMapOfShape * fillAllowed( SMESH_subMesh* sm,
86 TopTools_IndexedMapOfShape * allowedSub )
88 if ( !toFill || !allowedSub )
92 if ( allowedSub->IsEmpty() )
94 allowedSub->ReSize( sm->DependsOn().size() + 1 );
95 allowedSub->Add( sm->GetSubShape() );
96 for ( const auto & key_sm : sm->DependsOn() )
97 allowedSub->Add( key_sm.second->GetSubShape() );
103 //=============================================================================
107 //=============================================================================
109 SMESH_Gen::SMESH_Gen()
111 _studyContext = new StudyContextStruct;
112 _studyContext->myDocument = new SMESHDS_Document();
115 _segmentation = _nbSegments = 10;
116 _compute_canceled = false;
119 //=============================================================================
123 //=============================================================================
125 SMESH_Gen::~SMESH_Gen()
127 std::map < int, SMESH_Hypothesis * >::iterator i_hyp = _studyContext->mapHypothesis.begin();
128 for ( ; i_hyp != _studyContext->mapHypothesis.end(); ++i_hyp )
130 if ( _Hyp* h = static_cast< _Hyp*>( i_hyp->second ))
133 delete _studyContext->myDocument;
134 delete _studyContext;
137 //=============================================================================
139 * Creates a mesh in a study.
140 * if (theIsEmbeddedMode) { mesh modification commands are not logged }
142 //=============================================================================
144 SMESH_Mesh* SMESH_Gen::CreateMesh(bool theIsEmbeddedMode)
146 Unexpect aCatch(SalomeException);
148 // create a new SMESH_mesh object
149 SMESH_Mesh *aMesh = new SMESH_Mesh(_localId++,
152 _studyContext->myDocument);
153 _studyContext->mapMesh[_localId-1] = aMesh;
158 //=============================================================================
162 //=============================================================================
164 bool SMESH_Gen::Compute(SMESH_Mesh & aMesh,
165 const TopoDS_Shape & aShape,
166 const int aFlags /*= COMPACT_MESH*/,
167 const ::MeshDimension aDim /*=::MeshDim_3D*/,
168 TSetOfInt* aShapesId /*=0*/,
169 TopTools_IndexedMapOfShape* anAllowedSubShapes/*=0*/)
173 const bool aShapeOnly = aFlags & SHAPE_ONLY;
174 const bool anUpward = aFlags & UPWARD;
175 const bool aCompactMesh = aFlags & COMPACT_MESH;
179 SMESH_subMesh *sm, *shapeSM = aMesh.GetSubMesh(aShape);
181 const bool includeSelf = true;
182 const bool complexShapeFirst = true;
183 const int globalAlgoDim = 100;
185 SMESH_subMeshIteratorPtr smIt;
187 // Fix of Issue 22150. Due to !BLSURF->OnlyUnaryInput(), BLSURF computes edges
188 // that must be computed by Projection 1D-2D while the Projection asks to compute
190 SMESH_subMesh::compute_event computeEvent =
191 aShapeOnly ? SMESH_subMesh::COMPUTE_SUBMESH : SMESH_subMesh::COMPUTE;
192 if ( !aMesh.HasShapeToMesh() )
193 computeEvent = SMESH_subMesh::COMPUTE_NOGEOM; // if several algos and no geometry
195 TopTools_IndexedMapOfShape *allowedSubShapes = anAllowedSubShapes, allowedSub;
196 if ( aShapeOnly && !allowedSubShapes )
197 allowedSubShapes = &allowedSub;
199 if ( anUpward ) // is called from the below code in this method
201 // ===============================================
202 // Mesh all the sub-shapes starting from vertices
203 // ===============================================
205 smIt = shapeSM->getDependsOnIterator(includeSelf, !complexShapeFirst);
206 while ( smIt->more() )
208 SMESH_subMesh* smToCompute = smIt->next();
210 // do not mesh vertices of a pseudo shape
211 const TopoDS_Shape& shape = smToCompute->GetSubShape();
212 const TopAbs_ShapeEnum shapeType = shape.ShapeType();
213 if ( !aMesh.HasShapeToMesh() && shapeType == TopAbs_VERTEX )
216 // check for preview dimension limitations
217 if ( aShapesId && GetShapeDim( shapeType ) > (int)aDim )
219 // clear compute state not to show previous compute errors
220 // if preview invoked less dimension less than previous
221 smToCompute->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
225 if (smToCompute->GetComputeState() == SMESH_subMesh::READY_TO_COMPUTE)
227 if (_compute_canceled)
229 smToCompute->SetAllowedSubShapes( fillAllowed( shapeSM, aShapeOnly, allowedSubShapes ));
230 setCurrentSubMesh( smToCompute );
231 smToCompute->ComputeStateEngine( computeEvent );
232 setCurrentSubMesh( nullptr );
233 smToCompute->SetAllowedSubShapes( nullptr );
236 // we check all the sub-meshes here and detect if any of them failed to compute
237 if (smToCompute->GetComputeState() == SMESH_subMesh::FAILED_TO_COMPUTE &&
238 ( shapeType != TopAbs_EDGE || !SMESH_Algo::isDegenerated( TopoDS::Edge( shape ))))
240 else if ( aShapesId )
241 aShapesId->insert( smToCompute->GetId() );
243 //aMesh.GetMeshDS()->Modified();
248 // ================================================================
249 // Apply algos that do NOT require discreteized boundaries
250 // ("all-dimensional") and do NOT support sub-meshes, starting from
251 // the most complex shapes and collect sub-meshes with algos that
252 // DO support sub-meshes
253 // ================================================================
255 list< SMESH_subMesh* > smWithAlgoSupportingSubmeshes[4]; // for each dim
257 // map to sort sm with same dim algos according to dim of
258 // the shape the algo assigned to (issue 0021217).
259 // Other issues influenced the algo applying order:
260 // 21406, 21556, 21893, 20206
261 multimap< int, SMESH_subMesh* > shDim2sm;
262 multimap< int, SMESH_subMesh* >::reverse_iterator shDim2smIt;
263 TopoDS_Shape algoShape;
264 int prevShapeDim = -1, aShapeDim;
266 smIt = shapeSM->getDependsOnIterator(includeSelf, complexShapeFirst);
267 while ( smIt->more() )
269 SMESH_subMesh* smToCompute = smIt->next();
270 if ( smToCompute->GetComputeState() != SMESH_subMesh::READY_TO_COMPUTE )
273 const TopoDS_Shape& aSubShape = smToCompute->GetSubShape();
274 aShapeDim = GetShapeDim( aSubShape );
275 if ( aShapeDim < 1 ) break;
277 // check for preview dimension limitations
278 if ( aShapesId && aShapeDim > (int)aDim )
281 SMESH_Algo* algo = GetAlgo( smToCompute, &algoShape );
282 if ( algo && !algo->NeedDiscreteBoundary() )
284 if ( algo->SupportSubmeshes() )
286 // reload sub-meshes from shDim2sm into smWithAlgoSupportingSubmeshes
287 // so that more local algos to go first
288 if ( prevShapeDim != aShapeDim )
290 prevShapeDim = aShapeDim;
291 for ( shDim2smIt = shDim2sm.rbegin(); shDim2smIt != shDim2sm.rend(); ++shDim2smIt )
292 if ( shDim2smIt->first == globalAlgoDim )
293 smWithAlgoSupportingSubmeshes[ aShapeDim ].push_back( shDim2smIt->second );
295 smWithAlgoSupportingSubmeshes[ aShapeDim ].push_front( shDim2smIt->second );
298 // add smToCompute to shDim2sm map
299 if ( algoShape.IsSame( aMesh.GetShapeToMesh() ))
301 aShapeDim = globalAlgoDim; // to compute last
305 aShapeDim = GetShapeDim( algoShape );
306 if ( algoShape.ShapeType() == TopAbs_COMPOUND )
308 TopoDS_Iterator it( algoShape );
309 aShapeDim += GetShapeDim( it.Value() );
312 shDim2sm.insert( make_pair( aShapeDim, smToCompute ));
314 else // Compute w/o support of sub-meshes
316 if (_compute_canceled)
318 smToCompute->SetAllowedSubShapes( fillAllowed( shapeSM, aShapeOnly, allowedSubShapes ));
319 setCurrentSubMesh( smToCompute );
320 smToCompute->ComputeStateEngine( computeEvent );
321 setCurrentSubMesh( nullptr );
322 smToCompute->SetAllowedSubShapes( nullptr );
324 aShapesId->insert( smToCompute->GetId() );
328 // reload sub-meshes from shDim2sm into smWithAlgoSupportingSubmeshes
329 for ( shDim2smIt = shDim2sm.rbegin(); shDim2smIt != shDim2sm.rend(); ++shDim2smIt )
330 if ( shDim2smIt->first == globalAlgoDim )
331 smWithAlgoSupportingSubmeshes[3].push_back( shDim2smIt->second );
333 smWithAlgoSupportingSubmeshes[0].push_front( shDim2smIt->second );
335 // ======================================================
336 // Apply all-dimensional algorithms supporing sub-meshes
337 // ======================================================
339 std::vector< SMESH_subMesh* > smVec;
340 for ( aShapeDim = 0; aShapeDim < 4; ++aShapeDim )
341 smVec.insert( smVec.end(),
342 smWithAlgoSupportingSubmeshes[aShapeDim].begin(),
343 smWithAlgoSupportingSubmeshes[aShapeDim].end() );
345 // ------------------------------------------------
346 // sort list of sub-meshes according to mesh order
347 // ------------------------------------------------
348 aMesh.SortByMeshOrder( smVec );
350 // ------------------------------------------------------------
351 // compute sub-meshes with local uni-dimensional algos under
352 // sub-meshes with all-dimensional algos
353 // ------------------------------------------------------------
354 // start from lower shapes
355 for ( size_t i = 0; i < smVec.size(); ++i )
358 if ( sm->GetComputeState() != SMESH_subMesh::READY_TO_COMPUTE)
361 const TopAbs_ShapeEnum shapeType = sm->GetSubShape().ShapeType();
363 // get a shape the algo is assigned to
364 if ( !GetAlgo( sm, & algoShape ))
365 continue; // strange...
367 // look for more local algos
368 if ( SMESH_subMesh* algoSM = aMesh.GetSubMesh( algoShape ))
369 smIt = algoSM->getDependsOnIterator(!includeSelf, !complexShapeFirst);
371 smIt = sm->getDependsOnIterator(!includeSelf, !complexShapeFirst);
373 while ( smIt->more() )
375 SMESH_subMesh* smToCompute = smIt->next();
377 const TopoDS_Shape& aSubShape = smToCompute->GetSubShape();
378 const int aShapeDim = GetShapeDim( aSubShape );
379 if ( aShapeDim < 1 || aSubShape.ShapeType() == shapeType )
382 // check for preview dimension limitations
383 if ( aShapesId && GetShapeDim( aSubShape.ShapeType() ) > (int)aDim )
386 SMESH_HypoFilter filter( SMESH_HypoFilter::IsAlgo() );
388 .And( SMESH_HypoFilter::IsApplicableTo( aSubShape ))
389 .And( SMESH_HypoFilter::IsMoreLocalThan( algoShape, aMesh ));
391 if ( SMESH_Algo* subAlgo = (SMESH_Algo*) aMesh.GetHypothesis( smToCompute, filter, true))
393 if ( ! subAlgo->NeedDiscreteBoundary() ) continue;
394 TopTools_IndexedMapOfShape* localAllowed = allowedSubShapes;
395 if ( localAllowed && localAllowed->IsEmpty() )
396 localAllowed = 0; // prevent fillAllowed() with aSubShape
398 SMESH_Hypothesis::Hypothesis_Status status;
399 if ( subAlgo->CheckHypothesis( aMesh, aSubShape, status ))
400 // mesh a lower smToCompute starting from vertices
401 Compute( aMesh, aSubShape, aFlags | SHAPE_ONLY_UPWARD, aDim, aShapesId, localAllowed );
404 // --------------------------------
405 // apply the all-dimensional algo
406 // --------------------------------
408 if (_compute_canceled)
410 // check for preview dimension limitations
411 if ( aShapesId && GetShapeDim( shapeType ) > (int)aDim )
413 sm->SetAllowedSubShapes( fillAllowed( shapeSM, aShapeOnly, allowedSubShapes ));
414 setCurrentSubMesh( sm );
415 sm->ComputeStateEngine( computeEvent );
416 setCurrentSubMesh( NULL );
417 sm->SetAllowedSubShapes( nullptr );
419 aShapesId->insert( sm->GetId() );
424 // -----------------------------------------------
425 // mesh the rest sub-shapes starting from vertices
426 // -----------------------------------------------
427 ret = Compute( aMesh, aShape, aFlags | UPWARD, aDim, aShapesId, allowedSubShapes );
432 // fix quadratic mesh by bending iternal links near concave boundary
433 if ( aCompactMesh && // a final compute
434 aShape.IsSame( aMesh.GetShapeToMesh() ) &&
435 !aShapesId && // not preview
436 ret ) // everything is OK
438 SMESH_MesherHelper aHelper( aMesh );
439 if ( aHelper.IsQuadraticMesh() != SMESH_MesherHelper::LINEAR )
441 aHelper.FixQuadraticElements( shapeSM->GetComputeError() );
447 aMesh.GetMeshDS()->Modified();
448 aMesh.GetMeshDS()->CompactMesh();
453 //=============================================================================
455 * Prepare Compute a mesh
457 //=============================================================================
458 void SMESH_Gen::PrepareCompute(SMESH_Mesh & /*aMesh*/,
459 const TopoDS_Shape & /*aShape*/)
461 _compute_canceled = false;
462 resetCurrentSubMesh();
465 //=============================================================================
467 * Cancel Compute a mesh
469 //=============================================================================
470 void SMESH_Gen::CancelCompute(SMESH_Mesh & /*aMesh*/,
471 const TopoDS_Shape & /*aShape*/)
473 _compute_canceled = true;
474 if ( const SMESH_subMesh* sm = GetCurrentSubMesh() )
476 const_cast< SMESH_subMesh* >( sm )->ComputeStateEngine( SMESH_subMesh::COMPUTE_CANCELED );
478 resetCurrentSubMesh();
481 //================================================================================
483 * \brief Returns a sub-mesh being currently computed
485 //================================================================================
487 const SMESH_subMesh* SMESH_Gen::GetCurrentSubMesh() const
489 return _sm_current.empty() ? 0 : _sm_current.back();
492 //================================================================================
494 * \brief Sets a sub-mesh being currently computed.
496 * An algorithm can call Compute() for a sub-shape, hence we keep a stack of sub-meshes
498 //================================================================================
500 void SMESH_Gen::setCurrentSubMesh(SMESH_subMesh* sm)
503 _sm_current.push_back( sm );
505 else if ( !_sm_current.empty() )
506 _sm_current.pop_back();
509 void SMESH_Gen::resetCurrentSubMesh()
514 //=============================================================================
518 //=============================================================================
520 bool SMESH_Gen::Evaluate(SMESH_Mesh & aMesh,
521 const TopoDS_Shape & aShape,
522 MapShapeNbElems& aResMap,
524 TSetOfInt* aShapesId)
528 SMESH_subMesh *sm = aMesh.GetSubMesh(aShape);
530 const bool includeSelf = true;
531 const bool complexShapeFirst = true;
532 SMESH_subMeshIteratorPtr smIt;
534 if ( anUpward ) { // is called from below code here
535 // -----------------------------------------------
536 // mesh all the sub-shapes starting from vertices
537 // -----------------------------------------------
538 smIt = sm->getDependsOnIterator(includeSelf, !complexShapeFirst);
539 while ( smIt->more() ) {
540 SMESH_subMesh* smToCompute = smIt->next();
542 // do not mesh vertices of a pseudo shape
543 const TopAbs_ShapeEnum shapeType = smToCompute->GetSubShape().ShapeType();
544 //if ( !aMesh.HasShapeToMesh() && shapeType == TopAbs_VERTEX )
546 if ( !aMesh.HasShapeToMesh() ) {
547 if( shapeType == TopAbs_VERTEX || shapeType == TopAbs_WIRE ||
548 shapeType == TopAbs_SHELL )
552 smToCompute->Evaluate(aResMap);
554 aShapesId->insert( smToCompute->GetId() );
559 // -----------------------------------------------------------------
560 // apply algos that DO NOT require Discreteized boundaries and DO NOT
561 // support sub-meshes, starting from the most complex shapes
562 // and collect sub-meshes with algos that DO support sub-meshes
563 // -----------------------------------------------------------------
564 list< SMESH_subMesh* > smWithAlgoSupportingSubmeshes;
565 smIt = sm->getDependsOnIterator(includeSelf, complexShapeFirst);
566 while ( smIt->more() ) {
567 SMESH_subMesh* smToCompute = smIt->next();
568 const TopoDS_Shape& aSubShape = smToCompute->GetSubShape();
569 const int aShapeDim = GetShapeDim( aSubShape );
570 if ( aShapeDim < 1 ) break;
572 SMESH_Algo* algo = GetAlgo( smToCompute );
573 if ( algo && !algo->NeedDiscreteBoundary() ) {
574 if ( algo->SupportSubmeshes() ) {
575 smWithAlgoSupportingSubmeshes.push_front( smToCompute );
578 smToCompute->Evaluate(aResMap);
580 aShapesId->insert( smToCompute->GetId() );
585 // ------------------------------------------------------------
586 // sort list of meshes according to mesh order
587 // ------------------------------------------------------------
588 std::vector< SMESH_subMesh* > smVec( smWithAlgoSupportingSubmeshes.begin(),
589 smWithAlgoSupportingSubmeshes.end() );
590 aMesh.SortByMeshOrder( smVec );
592 // ------------------------------------------------------------
593 // compute sub-meshes under shapes with algos that DO NOT require
594 // Discreteized boundaries and DO support sub-meshes
595 // ------------------------------------------------------------
596 // start from lower shapes
597 for ( size_t i = 0; i < smVec.size(); ++i )
601 // get a shape the algo is assigned to
602 TopoDS_Shape algoShape;
603 if ( !GetAlgo( sm, & algoShape ))
604 continue; // strange...
606 // look for more local algos
607 smIt = sm->getDependsOnIterator(!includeSelf, !complexShapeFirst);
608 while ( smIt->more() ) {
609 SMESH_subMesh* smToCompute = smIt->next();
611 const TopoDS_Shape& aSubShape = smToCompute->GetSubShape();
612 const int aShapeDim = GetShapeDim( aSubShape );
613 if ( aShapeDim < 1 ) continue;
615 SMESH_HypoFilter filter( SMESH_HypoFilter::IsAlgo() );
617 .And( SMESH_HypoFilter::IsApplicableTo( aSubShape ))
618 .And( SMESH_HypoFilter::IsMoreLocalThan( algoShape, aMesh ));
620 if ( SMESH_Algo* subAlgo = (SMESH_Algo*) aMesh.GetHypothesis( smToCompute, filter, true ))
622 if ( ! subAlgo->NeedDiscreteBoundary() ) continue;
623 SMESH_Hypothesis::Hypothesis_Status status;
624 if ( subAlgo->CheckHypothesis( aMesh, aSubShape, status ))
625 // mesh a lower smToCompute starting from vertices
626 Evaluate( aMesh, aSubShape, aResMap, /*anUpward=*/true, aShapesId );
630 // ----------------------------------------------------------
631 // apply the algos that do not require Discreteized boundaries
632 // ----------------------------------------------------------
633 for ( size_t i = 0; i < smVec.size(); ++i )
636 sm->Evaluate(aResMap);
638 aShapesId->insert( sm->GetId() );
641 // -----------------------------------------------
642 // mesh the rest sub-shapes starting from vertices
643 // -----------------------------------------------
644 ret = Evaluate( aMesh, aShape, aResMap, /*anUpward=*/true, aShapesId );
651 //=======================================================================
652 //function : checkConformIgnoredAlgos
654 //=======================================================================
656 static bool checkConformIgnoredAlgos(SMESH_Mesh& aMesh,
657 SMESH_subMesh* aSubMesh,
658 const SMESH_Algo* aGlobIgnoAlgo,
659 const SMESH_Algo* aLocIgnoAlgo,
661 set<SMESH_subMesh*>& aCheckedMap,
662 list< SMESH_Gen::TAlgoStateError > & theErrors)
665 if ( aSubMesh->GetSubShape().ShapeType() == TopAbs_VERTEX)
671 const list<const SMESHDS_Hypothesis*>& listHyp =
672 aMesh.GetMeshDS()->GetHypothesis( aSubMesh->GetSubShape() );
673 list<const SMESHDS_Hypothesis*>::const_iterator it=listHyp.begin();
674 for ( ; it != listHyp.end(); it++)
676 const SMESHDS_Hypothesis * aHyp = *it;
677 if (aHyp->GetType() == SMESHDS_Hypothesis::PARAM_ALGO)
680 const SMESH_Algo* algo = dynamic_cast<const SMESH_Algo*> (aHyp);
683 if ( aLocIgnoAlgo ) // algo is hidden by a local algo of upper dim
685 theErrors.push_back( SMESH_Gen::TAlgoStateError() );
686 theErrors.back().Set( SMESH_Hypothesis::HYP_HIDDEN_ALGO, algo, false );
687 INFOS( "Local <" << algo->GetName() << "> is hidden by local <"
688 << aLocIgnoAlgo->GetName() << ">");
692 bool isGlobal = (aMesh.IsMainShape( aSubMesh->GetSubShape() ));
693 int dim = algo->GetDim();
694 int aMaxGlobIgnoDim = ( aGlobIgnoAlgo ? aGlobIgnoAlgo->GetDim() : -1 );
695 bool isNeededDim = ( aGlobIgnoAlgo ? aGlobIgnoAlgo->NeedLowerHyps( dim ) : false );
697 if (( dim < aMaxGlobIgnoDim && !isNeededDim ) &&
698 ( isGlobal || !aGlobIgnoAlgo->SupportSubmeshes() ))
700 // algo is hidden by a global algo
701 theErrors.push_back( SMESH_Gen::TAlgoStateError() );
702 theErrors.back().Set( SMESH_Hypothesis::HYP_HIDDEN_ALGO, algo, true );
703 INFOS( ( isGlobal ? "Global" : "Local" )
704 << " <" << algo->GetName() << "> is hidden by global <"
705 << aGlobIgnoAlgo->GetName() << ">");
707 else if ( !algo->NeedDiscreteBoundary() && !isGlobal)
709 // local algo is not hidden and hides algos on sub-shapes
710 if (checkConform && !aSubMesh->IsConform( algo ))
713 checkConform = false; // no more check conformity
714 INFOS( "ERROR: Local <" << algo->GetName() <<
715 "> would produce not conform mesh: "
716 "<Not Conform Mesh Allowed> hypothesis is missing");
717 theErrors.push_back( SMESH_Gen::TAlgoStateError() );
718 theErrors.back().Set( SMESH_Hypothesis::HYP_NOTCONFORM, algo, false );
721 // sub-algos will be hidden by a local <algo> if <algo> does not support sub-meshes
722 if ( algo->SupportSubmeshes() )
724 SMESH_subMeshIteratorPtr revItSub =
725 aSubMesh->getDependsOnIterator( /*includeSelf=*/false, /*complexShapeFirst=*/true);
726 bool checkConform2 = false;
727 while ( revItSub->more() )
729 SMESH_subMesh* sm = revItSub->next();
730 checkConformIgnoredAlgos (aMesh, sm, aGlobIgnoAlgo,
731 algo, checkConform2, aCheckedMap, theErrors);
732 aCheckedMap.insert( sm );
741 //=======================================================================
742 //function : checkMissing
743 //purpose : notify on missing hypothesis
744 // Return false if algo or hipothesis is missing
745 //=======================================================================
747 static bool checkMissing(SMESH_Gen* aGen,
749 SMESH_subMesh* aSubMesh,
750 const int aTopAlgoDim,
752 const bool checkNoAlgo,
753 set<SMESH_subMesh*>& aCheckedMap,
754 list< SMESH_Gen::TAlgoStateError > & theErrors)
756 switch ( aSubMesh->GetSubShape().ShapeType() )
760 case TopAbs_SOLID: break; // check this sub-mesh, it can be meshed
762 return true; // not meshable sub-mesh
764 if ( aCheckedMap.count( aSubMesh ))
768 SMESH_Algo* algo = 0;
770 switch (aSubMesh->GetAlgoState())
772 case SMESH_subMesh::NO_ALGO: {
775 // should there be any algo?
776 int shapeDim = SMESH_Gen::GetShapeDim( aSubMesh->GetSubShape() );
777 if (aTopAlgoDim > shapeDim)
779 MESSAGE( "ERROR: " << shapeDim << "D algorithm is missing" );
781 theErrors.push_back( SMESH_Gen::TAlgoStateError() );
782 theErrors.back().Set( SMESH_Hypothesis::HYP_MISSING, shapeDim, true );
787 case SMESH_subMesh::MISSING_HYP: {
788 // notify if an algo missing hyp is attached to aSubMesh
789 algo = aSubMesh->GetAlgo();
791 bool IsGlobalHypothesis = aGen->IsGlobalHypothesis( algo, aMesh );
792 if (!IsGlobalHypothesis || !globalChecked[ algo->GetDim() ])
794 TAlgoStateErrorName errName = SMESH_Hypothesis::HYP_MISSING;
795 SMESH_Hypothesis::Hypothesis_Status status;
796 algo->CheckHypothesis( aMesh, aSubMesh->GetSubShape(), status );
797 if ( status == SMESH_Hypothesis::HYP_BAD_PARAMETER ) {
798 MESSAGE( "ERROR: hypothesis of " << (IsGlobalHypothesis ? "Global " : "Local ")
799 << "<" << algo->GetName() << "> has a bad parameter value");
801 } else if ( status == SMESH_Hypothesis::HYP_BAD_GEOMETRY ) {
802 MESSAGE( "ERROR: " << (IsGlobalHypothesis ? "Global " : "Local ")
803 << "<" << algo->GetName() << "> assigned to mismatching geometry");
806 MESSAGE( "ERROR: " << (IsGlobalHypothesis ? "Global " : "Local ")
807 << "<" << algo->GetName() << "> misses some hypothesis");
809 if (IsGlobalHypothesis)
810 globalChecked[ algo->GetDim() ] = true;
811 theErrors.push_back( SMESH_Gen::TAlgoStateError() );
812 theErrors.back().Set( errName, algo, IsGlobalHypothesis );
817 case SMESH_subMesh::HYP_OK:
818 algo = aSubMesh->GetAlgo();
820 if (!algo->NeedDiscreteBoundary())
822 SMESH_subMeshIteratorPtr itsub = aSubMesh->getDependsOnIterator( /*includeSelf=*/false,
823 /*complexShapeFirst=*/false);
824 while ( itsub->more() )
825 aCheckedMap.insert( itsub->next() );
831 // do not check under algo that hides sub-algos or
832 // re-start checking NO_ALGO state
834 bool isTopLocalAlgo =
835 ( aTopAlgoDim <= algo->GetDim() && !aGen->IsGlobalHypothesis( algo, aMesh ));
836 if (!algo->NeedDiscreteBoundary() || isTopLocalAlgo)
838 bool checkNoAlgo2 = ( algo->NeedDiscreteBoundary() );
839 SMESH_subMeshIteratorPtr itsub = aSubMesh->getDependsOnIterator( /*includeSelf=*/false,
840 /*complexShapeFirst=*/true);
841 while ( itsub->more() )
843 // sub-meshes should not be checked further more
844 SMESH_subMesh* sm = itsub->next();
848 //check algo on sub-meshes
849 int aTopAlgoDim2 = algo->GetDim();
850 if (!checkMissing (aGen, aMesh, sm, aTopAlgoDim2,
851 globalChecked, checkNoAlgo2, aCheckedMap, theErrors))
854 if (sm->GetAlgoState() == SMESH_subMesh::NO_ALGO )
855 checkNoAlgo2 = false;
858 aCheckedMap.insert( sm );
864 //=======================================================================
865 //function : CheckAlgoState
866 //purpose : notify on bad state of attached algos, return false
867 // if Compute() would fail because of some algo bad state
868 //=======================================================================
870 bool SMESH_Gen::CheckAlgoState(SMESH_Mesh& aMesh, const TopoDS_Shape& aShape)
872 list< TAlgoStateError > errors;
873 return GetAlgoState( aMesh, aShape, errors );
876 //=======================================================================
877 //function : GetAlgoState
878 //purpose : notify on bad state of attached algos, return false
879 // if Compute() would fail because of some algo bad state
880 // theErrors list contains problems description
881 //=======================================================================
883 bool SMESH_Gen::GetAlgoState(SMESH_Mesh& theMesh,
884 const TopoDS_Shape& theShape,
885 list< TAlgoStateError > & theErrors)
888 bool hasAlgo = false;
890 SMESH_subMesh* sm = theMesh.GetSubMesh(theShape);
891 const SMESHDS_Mesh* meshDS = theMesh.GetMeshDS();
892 TopoDS_Shape mainShape = meshDS->ShapeToMesh();
898 const SMESH_Algo* aGlobAlgoArr[] = {0,0,0,0};
900 const list<const SMESHDS_Hypothesis*>& listHyp = meshDS->GetHypothesis( mainShape );
901 list<const SMESHDS_Hypothesis*>::const_iterator it=listHyp.begin();
902 for ( ; it != listHyp.end(); it++)
904 const SMESHDS_Hypothesis * aHyp = *it;
905 if (aHyp->GetType() == SMESHDS_Hypothesis::PARAM_ALGO)
908 const SMESH_Algo* algo = dynamic_cast<const SMESH_Algo*> (aHyp);
911 int dim = algo->GetDim();
912 aGlobAlgoArr[ dim ] = algo;
917 // --------------------------------------------------------
918 // info on algos that will be ignored because of ones that
919 // don't NeedDiscreteBoundary() attached to super-shapes,
920 // check that a conform mesh will be produced
921 // --------------------------------------------------------
924 // find a global algo possibly hiding sub-algos
926 const SMESH_Algo* aGlobIgnoAlgo = 0;
927 for (dim = 3; dim > 0; dim--)
929 if (aGlobAlgoArr[ dim ] &&
930 !aGlobAlgoArr[ dim ]->NeedDiscreteBoundary() /*&&
931 !aGlobAlgoArr[ dim ]->SupportSubmeshes()*/ )
933 aGlobIgnoAlgo = aGlobAlgoArr[ dim ];
938 set<SMESH_subMesh*> aCheckedSubs;
939 bool checkConform = ( !theMesh.IsNotConformAllowed() );
941 // loop on theShape and its sub-shapes
942 SMESH_subMeshIteratorPtr revItSub = sm->getDependsOnIterator( /*includeSelf=*/true,
943 /*complexShapeFirst=*/true);
944 while ( revItSub->more() )
946 SMESH_subMesh* smToCheck = revItSub->next();
947 if ( smToCheck->GetSubShape().ShapeType() == TopAbs_VERTEX)
950 if ( aCheckedSubs.insert( smToCheck ).second ) // not yet checked
951 if (!checkConformIgnoredAlgos (theMesh, smToCheck, aGlobIgnoAlgo,
952 0, checkConform, aCheckedSubs, theErrors))
955 if ( smToCheck->GetAlgoState() != SMESH_subMesh::NO_ALGO )
959 // ----------------------------------------------------------------
960 // info on missing hypothesis and find out if all needed algos are
962 // ----------------------------------------------------------------
964 // find max dim of global algo
966 for (dim = 3; dim > 0; dim--)
968 if (aGlobAlgoArr[ dim ])
974 bool checkNoAlgo = theMesh.HasShapeToMesh() ? bool( aTopAlgoDim ) : false;
975 bool globalChecked[] = { false, false, false, false };
977 // loop on theShape and its sub-shapes
978 aCheckedSubs.clear();
979 revItSub = sm->getDependsOnIterator( /*includeSelf=*/true, /*complexShapeFirst=*/true);
980 while ( revItSub->more() )
982 SMESH_subMesh* smToCheck = revItSub->next();
983 if ( smToCheck->GetSubShape().ShapeType() == TopAbs_VERTEX)
986 if (!checkMissing (this, theMesh, smToCheck, aTopAlgoDim,
987 globalChecked, checkNoAlgo, aCheckedSubs, theErrors))
990 if (smToCheck->GetAlgoState() == SMESH_subMesh::NO_ALGO )
997 theErrors.push_back( TAlgoStateError() );
998 theErrors.back().Set( SMESH_Hypothesis::HYP_MISSING, theMesh.HasShapeToMesh() ? 1 : 3, true );
1004 //=======================================================================
1005 //function : IsGlobalHypothesis
1006 //purpose : check if theAlgo is attached to the main shape
1007 //=======================================================================
1009 bool SMESH_Gen::IsGlobalHypothesis(const SMESH_Hypothesis* theHyp, SMESH_Mesh& aMesh)
1011 SMESH_HypoFilter filter( SMESH_HypoFilter::Is( theHyp ));
1012 return aMesh.GetHypothesis( aMesh.GetMeshDS()->ShapeToMesh(), filter, false );
1015 //================================================================================
1017 * \brief Return paths to xml files of plugins
1019 //================================================================================
1021 std::vector< std::string > SMESH_Gen::GetPluginXMLPaths()
1023 // Get paths to xml files of plugins
1024 vector< string > xmlPaths;
1026 if ( const char* meshersList = getenv("SMESH_MeshersList") )
1028 string meshers = meshersList, plugin;
1029 string::size_type from = 0, pos;
1030 while ( from < meshers.size() )
1032 // cut off plugin name
1033 pos = meshers.find( env_sep, from );
1034 if ( pos != string::npos )
1035 plugin = meshers.substr( from, pos-from );
1037 plugin = meshers.substr( from ), pos = meshers.size();
1040 // get PLUGIN_ROOT_DIR path
1041 string rootDirVar, pluginSubDir = plugin;
1042 if ( plugin == "StdMeshers" )
1043 rootDirVar = "SMESH", pluginSubDir = "smesh";
1045 for ( pos = 0; pos < plugin.size(); ++pos )
1046 rootDirVar += toupper( plugin[pos] );
1047 rootDirVar += "_ROOT_DIR";
1049 const char* rootDir = getenv( rootDirVar.c_str() );
1050 if ( !rootDir || strlen(rootDir) == 0 )
1052 rootDirVar = plugin + "_ROOT_DIR"; // HexoticPLUGIN_ROOT_DIR
1053 rootDir = getenv( rootDirVar.c_str() );
1054 if ( !rootDir || strlen(rootDir) == 0 ) continue;
1057 // get a separator from rootDir
1058 for ( int i = strlen( rootDir )-1; i >= 0 && sep.empty(); --i )
1059 if ( rootDir[i] == '/' || rootDir[i] == '\\' )
1065 if (sep.empty() ) sep = "\\";
1067 if (sep.empty() ) sep = "/";
1070 // get a path to resource file
1071 string xmlPath = rootDir;
1072 if ( xmlPath[ xmlPath.size()-1 ] != sep[0] )
1074 xmlPath += "share" + sep + "salome" + sep + "resources" + sep;
1075 for ( pos = 0; pos < pluginSubDir.size(); ++pos )
1076 xmlPath += tolower( pluginSubDir[pos] );
1077 xmlPath += sep + plugin + ".xml";
1081 const wchar_t* path = Kernel_Utils::decode_s(xmlPath);
1083 const char* path = xmlPath.c_str();
1086 fileOK = (GetFileAttributes(path) != INVALID_FILE_ATTRIBUTES);
1093 fileOK = (access(xmlPath.c_str(), F_OK) == 0);
1096 xmlPaths.push_back( xmlPath );
1103 //=============================================================================
1105 * Finds algo to mesh a shape. Optionally returns a shape the found algo is bound to
1107 //=============================================================================
1109 SMESH_Algo *SMESH_Gen::GetAlgo(SMESH_Mesh & aMesh,
1110 const TopoDS_Shape & aShape,
1111 TopoDS_Shape* assignedTo)
1113 return GetAlgo( aMesh.GetSubMesh( aShape ), assignedTo );
1116 //=============================================================================
1118 * Finds algo to mesh a sub-mesh. Optionally returns a shape the found algo is bound to
1120 //=============================================================================
1122 SMESH_Algo *SMESH_Gen::GetAlgo(SMESH_subMesh * aSubMesh,
1123 TopoDS_Shape* assignedTo)
1125 if ( !aSubMesh ) return 0;
1127 const TopoDS_Shape & aShape = aSubMesh->GetSubShape();
1128 SMESH_Mesh& aMesh = *aSubMesh->GetFather();
1130 SMESH_HypoFilter filter( SMESH_HypoFilter::IsAlgo() );
1131 if ( aMesh.HasShapeToMesh() )
1132 filter.And( filter.IsApplicableTo( aShape ));
1134 typedef SMESH_Algo::Features AlgoData;
1136 TopoDS_Shape assignedToShape;
1138 (SMESH_Algo*) aMesh.GetHypothesis( aSubMesh, filter, true, &assignedToShape );
1141 aShape.ShapeType() == TopAbs_FACE &&
1142 !aShape.IsSame( assignedToShape ) &&
1143 SMESH_MesherHelper::NbAncestors( aShape, aMesh, TopAbs_SOLID ) > 1 )
1145 // Issue 0021559. If there is another 2D algo with different types of output
1146 // elements that can be used to mesh aShape, and 3D algos on adjacent SOLIDs
1147 // have different types of input elements, we choose a most appropriate 2D algo.
1149 // try to find a concurrent 2D algo
1150 filter.AndNot( filter.Is( algo ));
1151 TopoDS_Shape assignedToShape2;
1153 (SMESH_Algo*) aMesh.GetHypothesis( aSubMesh, filter, true, &assignedToShape2 );
1154 if ( algo2 && // algo found
1155 !assignedToShape2.IsSame( aMesh.GetShapeToMesh() ) && // algo is local
1156 ( SMESH_MesherHelper::GetGroupType( assignedToShape2 ) == // algo of the same level
1157 SMESH_MesherHelper::GetGroupType( assignedToShape )) &&
1158 aMesh.IsOrderOK( aMesh.GetSubMesh( assignedToShape2 ), // no forced order
1159 aMesh.GetSubMesh( assignedToShape )))
1161 // get algos on the adjacent SOLIDs
1162 filter.Init( filter.IsAlgo() ).And( filter.HasDim( 3 ));
1163 vector< SMESH_Algo* > algos3D;
1164 PShapeIteratorPtr solidIt = SMESH_MesherHelper::GetAncestors( aShape, aMesh,
1166 while ( const TopoDS_Shape* solid = solidIt->next() )
1167 if ( SMESH_Algo* algo3D = (SMESH_Algo*) aMesh.GetHypothesis( *solid, filter, true ))
1169 algos3D.push_back( algo3D );
1170 filter.AndNot( filter.HasName( algo3D->GetName() ));
1172 // check compatibility of algos
1173 if ( algos3D.size() > 1 )
1175 const AlgoData& algoData = algo->SMESH_Algo::GetFeatures();
1176 const AlgoData& algoData2 = algo2->SMESH_Algo::GetFeatures();
1177 const AlgoData& algoData3d0 = algos3D[0]->SMESH_Algo::GetFeatures();
1178 const AlgoData& algoData3d1 = algos3D[1]->SMESH_Algo::GetFeatures();
1179 if (( algoData2.IsCompatible( algoData3d0 ) &&
1180 algoData2.IsCompatible( algoData3d1 ))
1182 !(algoData.IsCompatible( algoData3d0 ) &&
1183 algoData.IsCompatible( algoData3d1 )))
1189 if ( assignedTo && algo )
1190 * assignedTo = assignedToShape;
1195 //=============================================================================
1197 * Returns StudyContextStruct for a study
1199 //=============================================================================
1201 StudyContextStruct *SMESH_Gen::GetStudyContext()
1203 return _studyContext;
1206 //================================================================================
1208 * \brief Return shape dimension by TopAbs_ShapeEnum
1210 //================================================================================
1212 int SMESH_Gen::GetShapeDim(const TopAbs_ShapeEnum & aShapeType)
1214 static vector<int> dim;
1217 dim.resize( TopAbs_SHAPE, -1 );
1218 dim[ TopAbs_COMPOUND ] = MeshDim_3D;
1219 dim[ TopAbs_COMPSOLID ] = MeshDim_3D;
1220 dim[ TopAbs_SOLID ] = MeshDim_3D;
1221 dim[ TopAbs_SHELL ] = MeshDim_2D;
1222 dim[ TopAbs_FACE ] = MeshDim_2D;
1223 dim[ TopAbs_WIRE ] = MeshDim_1D;
1224 dim[ TopAbs_EDGE ] = MeshDim_1D;
1225 dim[ TopAbs_VERTEX ] = MeshDim_0D;
1227 return dim[ aShapeType ];
1230 //=============================================================================
1232 * Generate a new id unique within this Gen
1234 //=============================================================================
1236 int SMESH_Gen::GetANewId()