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>
43 #include <Utils_ExceptHandlers.hxx>
45 #include <TopExp_Explorer.hxx>
47 #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 // gather sub-shapes with local uni-dimensional algos (bos #29143)
336 // ----------------------------------------------------------------
337 TopTools_MapOfShape uniDimAlgoShapes;
338 ShapeToHypothesis::Iterator s2hyps( aMesh.GetMeshDS()->GetHypotheses() );
339 for ( ; s2hyps.More(); s2hyps.Next() )
341 const TopoDS_Shape& s = s2hyps.Key();
342 if ( s.IsSame( aMesh.GetShapeToMesh() ))
344 for ( auto & hyp : s2hyps.Value() )
346 if ( const SMESH_Algo* algo = dynamic_cast< const SMESH_Algo*>( hyp ))
347 if ( algo->NeedDiscreteBoundary() )
349 TopAbs_ShapeEnum sType;
350 switch ( algo->GetDim() ) {
351 case 3: sType = TopAbs_SOLID; break;
352 case 2: sType = TopAbs_FACE; break;
353 default: sType = TopAbs_EDGE; break;
355 for ( TopExp_Explorer ex( s2hyps.Key(), sType ); ex.More(); ex.Next() )
356 uniDimAlgoShapes.Add( ex.Current() );
361 // ======================================================
362 // Apply all-dimensional algorithms supporing sub-meshes
363 // ======================================================
365 std::vector< SMESH_subMesh* > smVec;
366 for ( aShapeDim = 0; aShapeDim < 4; ++aShapeDim )
367 smVec.insert( smVec.end(),
368 smWithAlgoSupportingSubmeshes[aShapeDim].begin(),
369 smWithAlgoSupportingSubmeshes[aShapeDim].end() );
371 // ------------------------------------------------
372 // sort list of sub-meshes according to mesh order
373 // ------------------------------------------------
374 aMesh.SortByMeshOrder( smVec );
376 // ------------------------------------------------------------
377 // compute sub-meshes with local uni-dimensional algos under
378 // sub-meshes with all-dimensional algos
379 // ------------------------------------------------------------
380 // start from lower shapes
381 for ( size_t i = 0; i < smVec.size(); ++i )
384 if ( sm->GetComputeState() != SMESH_subMesh::READY_TO_COMPUTE)
387 const TopAbs_ShapeEnum shapeType = sm->GetSubShape().ShapeType();
389 // get a shape the algo is assigned to
390 if ( !GetAlgo( sm, & algoShape ))
391 continue; // strange...
393 // look for more local algos
394 if ( SMESH_subMesh* algoSM = aMesh.GetSubMesh( algoShape ))
395 smIt = algoSM->getDependsOnIterator(!includeSelf, !complexShapeFirst);
397 smIt = sm->getDependsOnIterator(!includeSelf, !complexShapeFirst);
399 while ( smIt->more() )
401 SMESH_subMesh* smToCompute = smIt->next();
403 const TopoDS_Shape& aSubShape = smToCompute->GetSubShape();
404 const int aShapeDim = GetShapeDim( aSubShape );
405 if ( aShapeDim < 1 || aSubShape.ShapeType() <= shapeType )
407 if ( !uniDimAlgoShapes.Contains( aSubShape ))
408 continue; // [bos #29143] aMesh.GetHypothesis() is too long
410 // check for preview dimension limitations
411 if ( aShapesId && GetShapeDim( aSubShape.ShapeType() ) > (int)aDim )
414 SMESH_HypoFilter filter( SMESH_HypoFilter::IsAlgo() );
416 .And( SMESH_HypoFilter::IsApplicableTo( aSubShape ))
417 .And( SMESH_HypoFilter::IsMoreLocalThan( algoShape, aMesh ));
419 if ( SMESH_Algo* subAlgo = (SMESH_Algo*) aMesh.GetHypothesis( smToCompute, filter, true))
421 if ( ! subAlgo->NeedDiscreteBoundary() ) continue;
422 TopTools_IndexedMapOfShape* localAllowed = allowedSubShapes;
423 if ( localAllowed && localAllowed->IsEmpty() )
424 localAllowed = 0; // prevent fillAllowed() with aSubShape
426 SMESH_Hypothesis::Hypothesis_Status status;
427 if ( subAlgo->CheckHypothesis( aMesh, aSubShape, status ))
428 // mesh a lower smToCompute starting from vertices
429 Compute( aMesh, aSubShape, aFlags | SHAPE_ONLY_UPWARD, aDim, aShapesId, localAllowed );
432 // --------------------------------
433 // apply the all-dimensional algo
434 // --------------------------------
436 if (_compute_canceled)
438 // check for preview dimension limitations
439 if ( aShapesId && GetShapeDim( shapeType ) > (int)aDim )
441 sm->SetAllowedSubShapes( fillAllowed( shapeSM, aShapeOnly, allowedSubShapes ));
442 setCurrentSubMesh( sm );
443 sm->ComputeStateEngine( computeEvent );
444 setCurrentSubMesh( NULL );
445 sm->SetAllowedSubShapes( nullptr );
447 aShapesId->insert( sm->GetId() );
452 // -----------------------------------------------
453 // mesh the rest sub-shapes starting from vertices
454 // -----------------------------------------------
455 ret = Compute( aMesh, aShape, aFlags | UPWARD, aDim, aShapesId, allowedSubShapes );
460 // fix quadratic mesh by bending iternal links near concave boundary
461 if ( aCompactMesh && // a final compute
462 aShape.IsSame( aMesh.GetShapeToMesh() ) &&
463 !aShapesId && // not preview
464 ret ) // everything is OK
466 SMESH_MesherHelper aHelper( aMesh );
467 if ( aHelper.IsQuadraticMesh() != SMESH_MesherHelper::LINEAR )
469 aHelper.FixQuadraticElements( shapeSM->GetComputeError() );
475 aMesh.GetMeshDS()->Modified();
476 aMesh.GetMeshDS()->CompactMesh();
481 //=============================================================================
483 * Prepare Compute a mesh
485 //=============================================================================
486 void SMESH_Gen::PrepareCompute(SMESH_Mesh & /*aMesh*/,
487 const TopoDS_Shape & /*aShape*/)
489 _compute_canceled = false;
490 resetCurrentSubMesh();
493 //=============================================================================
495 * Cancel Compute a mesh
497 //=============================================================================
498 void SMESH_Gen::CancelCompute(SMESH_Mesh & /*aMesh*/,
499 const TopoDS_Shape & /*aShape*/)
501 _compute_canceled = true;
502 if ( const SMESH_subMesh* sm = GetCurrentSubMesh() )
504 const_cast< SMESH_subMesh* >( sm )->ComputeStateEngine( SMESH_subMesh::COMPUTE_CANCELED );
506 resetCurrentSubMesh();
509 //================================================================================
511 * \brief Returns a sub-mesh being currently computed
513 //================================================================================
515 const SMESH_subMesh* SMESH_Gen::GetCurrentSubMesh() const
517 return _sm_current.empty() ? 0 : _sm_current.back();
520 //================================================================================
522 * \brief Sets a sub-mesh being currently computed.
524 * An algorithm can call Compute() for a sub-shape, hence we keep a stack of sub-meshes
526 //================================================================================
528 void SMESH_Gen::setCurrentSubMesh(SMESH_subMesh* sm)
531 _sm_current.push_back( sm );
533 else if ( !_sm_current.empty() )
534 _sm_current.pop_back();
537 void SMESH_Gen::resetCurrentSubMesh()
542 //=============================================================================
546 //=============================================================================
548 bool SMESH_Gen::Evaluate(SMESH_Mesh & aMesh,
549 const TopoDS_Shape & aShape,
550 MapShapeNbElems& aResMap,
552 TSetOfInt* aShapesId)
556 SMESH_subMesh *sm = aMesh.GetSubMesh(aShape);
558 const bool includeSelf = true;
559 const bool complexShapeFirst = true;
560 SMESH_subMeshIteratorPtr smIt;
562 if ( anUpward ) { // is called from below code here
563 // -----------------------------------------------
564 // mesh all the sub-shapes starting from vertices
565 // -----------------------------------------------
566 smIt = sm->getDependsOnIterator(includeSelf, !complexShapeFirst);
567 while ( smIt->more() ) {
568 SMESH_subMesh* smToCompute = smIt->next();
570 // do not mesh vertices of a pseudo shape
571 const TopAbs_ShapeEnum shapeType = smToCompute->GetSubShape().ShapeType();
572 //if ( !aMesh.HasShapeToMesh() && shapeType == TopAbs_VERTEX )
574 if ( !aMesh.HasShapeToMesh() ) {
575 if( shapeType == TopAbs_VERTEX || shapeType == TopAbs_WIRE ||
576 shapeType == TopAbs_SHELL )
580 smToCompute->Evaluate(aResMap);
582 aShapesId->insert( smToCompute->GetId() );
587 // -----------------------------------------------------------------
588 // apply algos that DO NOT require Discreteized boundaries and DO NOT
589 // support sub-meshes, starting from the most complex shapes
590 // and collect sub-meshes with algos that DO support sub-meshes
591 // -----------------------------------------------------------------
592 list< SMESH_subMesh* > smWithAlgoSupportingSubmeshes;
593 smIt = sm->getDependsOnIterator(includeSelf, complexShapeFirst);
594 while ( smIt->more() ) {
595 SMESH_subMesh* smToCompute = smIt->next();
596 const TopoDS_Shape& aSubShape = smToCompute->GetSubShape();
597 const int aShapeDim = GetShapeDim( aSubShape );
598 if ( aShapeDim < 1 ) break;
600 SMESH_Algo* algo = GetAlgo( smToCompute );
601 if ( algo && !algo->NeedDiscreteBoundary() ) {
602 if ( algo->SupportSubmeshes() ) {
603 smWithAlgoSupportingSubmeshes.push_front( smToCompute );
606 smToCompute->Evaluate(aResMap);
608 aShapesId->insert( smToCompute->GetId() );
613 // ------------------------------------------------------------
614 // sort list of meshes according to mesh order
615 // ------------------------------------------------------------
616 std::vector< SMESH_subMesh* > smVec( smWithAlgoSupportingSubmeshes.begin(),
617 smWithAlgoSupportingSubmeshes.end() );
618 aMesh.SortByMeshOrder( smVec );
620 // ------------------------------------------------------------
621 // compute sub-meshes under shapes with algos that DO NOT require
622 // Discreteized boundaries and DO support sub-meshes
623 // ------------------------------------------------------------
624 // start from lower shapes
625 for ( size_t i = 0; i < smVec.size(); ++i )
629 // get a shape the algo is assigned to
630 TopoDS_Shape algoShape;
631 if ( !GetAlgo( sm, & algoShape ))
632 continue; // strange...
634 // look for more local algos
635 smIt = sm->getDependsOnIterator(!includeSelf, !complexShapeFirst);
636 while ( smIt->more() ) {
637 SMESH_subMesh* smToCompute = smIt->next();
639 const TopoDS_Shape& aSubShape = smToCompute->GetSubShape();
640 const int aShapeDim = GetShapeDim( aSubShape );
641 if ( aShapeDim < 1 ) continue;
643 SMESH_HypoFilter filter( SMESH_HypoFilter::IsAlgo() );
645 .And( SMESH_HypoFilter::IsApplicableTo( aSubShape ))
646 .And( SMESH_HypoFilter::IsMoreLocalThan( algoShape, aMesh ));
648 if ( SMESH_Algo* subAlgo = (SMESH_Algo*) aMesh.GetHypothesis( smToCompute, filter, true ))
650 if ( ! subAlgo->NeedDiscreteBoundary() ) continue;
651 SMESH_Hypothesis::Hypothesis_Status status;
652 if ( subAlgo->CheckHypothesis( aMesh, aSubShape, status ))
653 // mesh a lower smToCompute starting from vertices
654 Evaluate( aMesh, aSubShape, aResMap, /*anUpward=*/true, aShapesId );
658 // ----------------------------------------------------------
659 // apply the algos that do not require Discreteized boundaries
660 // ----------------------------------------------------------
661 for ( size_t i = 0; i < smVec.size(); ++i )
664 sm->Evaluate(aResMap);
666 aShapesId->insert( sm->GetId() );
669 // -----------------------------------------------
670 // mesh the rest sub-shapes starting from vertices
671 // -----------------------------------------------
672 ret = Evaluate( aMesh, aShape, aResMap, /*anUpward=*/true, aShapesId );
679 //=======================================================================
680 //function : checkConformIgnoredAlgos
682 //=======================================================================
684 static bool checkConformIgnoredAlgos(SMESH_Mesh& aMesh,
685 SMESH_subMesh* aSubMesh,
686 const SMESH_Algo* aGlobIgnoAlgo,
687 const SMESH_Algo* aLocIgnoAlgo,
689 set<SMESH_subMesh*>& aCheckedMap,
690 list< SMESH_Gen::TAlgoStateError > & theErrors)
693 if ( aSubMesh->GetSubShape().ShapeType() == TopAbs_VERTEX)
699 const list<const SMESHDS_Hypothesis*>& listHyp =
700 aMesh.GetMeshDS()->GetHypothesis( aSubMesh->GetSubShape() );
701 list<const SMESHDS_Hypothesis*>::const_iterator it=listHyp.begin();
702 for ( ; it != listHyp.end(); it++)
704 const SMESHDS_Hypothesis * aHyp = *it;
705 if (aHyp->GetType() == SMESHDS_Hypothesis::PARAM_ALGO)
708 const SMESH_Algo* algo = dynamic_cast<const SMESH_Algo*> (aHyp);
711 if ( aLocIgnoAlgo ) // algo is hidden by a local algo of upper dim
713 theErrors.push_back( SMESH_Gen::TAlgoStateError() );
714 theErrors.back().Set( SMESH_Hypothesis::HYP_HIDDEN_ALGO, algo, false );
715 INFOS( "Local <" << algo->GetName() << "> is hidden by local <"
716 << aLocIgnoAlgo->GetName() << ">");
720 bool isGlobal = (aMesh.IsMainShape( aSubMesh->GetSubShape() ));
721 int dim = algo->GetDim();
722 int aMaxGlobIgnoDim = ( aGlobIgnoAlgo ? aGlobIgnoAlgo->GetDim() : -1 );
723 bool isNeededDim = ( aGlobIgnoAlgo ? aGlobIgnoAlgo->NeedLowerHyps( dim ) : false );
725 if (( dim < aMaxGlobIgnoDim && !isNeededDim ) &&
726 ( isGlobal || !aGlobIgnoAlgo->SupportSubmeshes() ))
728 // algo is hidden by a global algo
729 theErrors.push_back( SMESH_Gen::TAlgoStateError() );
730 theErrors.back().Set( SMESH_Hypothesis::HYP_HIDDEN_ALGO, algo, true );
731 INFOS( ( isGlobal ? "Global" : "Local" )
732 << " <" << algo->GetName() << "> is hidden by global <"
733 << aGlobIgnoAlgo->GetName() << ">");
735 else if ( !algo->NeedDiscreteBoundary() && !isGlobal)
737 // local algo is not hidden and hides algos on sub-shapes
738 if (checkConform && !aSubMesh->IsConform( algo ))
741 checkConform = false; // no more check conformity
742 INFOS( "ERROR: Local <" << algo->GetName() <<
743 "> would produce not conform mesh: "
744 "<Not Conform Mesh Allowed> hypothesis is missing");
745 theErrors.push_back( SMESH_Gen::TAlgoStateError() );
746 theErrors.back().Set( SMESH_Hypothesis::HYP_NOTCONFORM, algo, false );
749 // sub-algos will be hidden by a local <algo> if <algo> does not support sub-meshes
750 if ( algo->SupportSubmeshes() )
752 SMESH_subMeshIteratorPtr revItSub =
753 aSubMesh->getDependsOnIterator( /*includeSelf=*/false, /*complexShapeFirst=*/true);
754 bool checkConform2 = false;
755 while ( revItSub->more() )
757 SMESH_subMesh* sm = revItSub->next();
758 checkConformIgnoredAlgos (aMesh, sm, aGlobIgnoAlgo,
759 algo, checkConform2, aCheckedMap, theErrors);
760 aCheckedMap.insert( sm );
769 //=======================================================================
770 //function : checkMissing
771 //purpose : notify on missing hypothesis
772 // Return false if algo or hipothesis is missing
773 //=======================================================================
775 static bool checkMissing(SMESH_Gen* aGen,
777 SMESH_subMesh* aSubMesh,
778 const int aTopAlgoDim,
780 const bool checkNoAlgo,
781 set<SMESH_subMesh*>& aCheckedMap,
782 list< SMESH_Gen::TAlgoStateError > & theErrors)
784 switch ( aSubMesh->GetSubShape().ShapeType() )
788 case TopAbs_SOLID: break; // check this sub-mesh, it can be meshed
790 return true; // not meshable sub-mesh
792 if ( aCheckedMap.count( aSubMesh ))
796 SMESH_Algo* algo = 0;
798 switch (aSubMesh->GetAlgoState())
800 case SMESH_subMesh::NO_ALGO: {
803 // should there be any algo?
804 int shapeDim = SMESH_Gen::GetShapeDim( aSubMesh->GetSubShape() );
805 if (aTopAlgoDim > shapeDim)
807 MESSAGE( "ERROR: " << shapeDim << "D algorithm is missing" );
809 theErrors.push_back( SMESH_Gen::TAlgoStateError() );
810 theErrors.back().Set( SMESH_Hypothesis::HYP_MISSING, shapeDim, true );
815 case SMESH_subMesh::MISSING_HYP: {
816 // notify if an algo missing hyp is attached to aSubMesh
817 algo = aSubMesh->GetAlgo();
819 bool IsGlobalHypothesis = aGen->IsGlobalHypothesis( algo, aMesh );
820 if (!IsGlobalHypothesis || !globalChecked[ algo->GetDim() ])
822 TAlgoStateErrorName errName = SMESH_Hypothesis::HYP_MISSING;
823 SMESH_Hypothesis::Hypothesis_Status status;
824 algo->CheckHypothesis( aMesh, aSubMesh->GetSubShape(), status );
825 if ( status == SMESH_Hypothesis::HYP_BAD_PARAMETER ) {
826 MESSAGE( "ERROR: hypothesis of " << (IsGlobalHypothesis ? "Global " : "Local ")
827 << "<" << algo->GetName() << "> has a bad parameter value");
829 } else if ( status == SMESH_Hypothesis::HYP_BAD_GEOMETRY ) {
830 MESSAGE( "ERROR: " << (IsGlobalHypothesis ? "Global " : "Local ")
831 << "<" << algo->GetName() << "> assigned to mismatching geometry");
834 MESSAGE( "ERROR: " << (IsGlobalHypothesis ? "Global " : "Local ")
835 << "<" << algo->GetName() << "> misses some hypothesis");
837 if (IsGlobalHypothesis)
838 globalChecked[ algo->GetDim() ] = true;
839 theErrors.push_back( SMESH_Gen::TAlgoStateError() );
840 theErrors.back().Set( errName, algo, IsGlobalHypothesis );
845 case SMESH_subMesh::HYP_OK:
846 algo = aSubMesh->GetAlgo();
848 if (!algo->NeedDiscreteBoundary())
850 SMESH_subMeshIteratorPtr itsub = aSubMesh->getDependsOnIterator( /*includeSelf=*/false,
851 /*complexShapeFirst=*/false);
852 while ( itsub->more() )
853 aCheckedMap.insert( itsub->next() );
859 // do not check under algo that hides sub-algos or
860 // re-start checking NO_ALGO state
862 bool isTopLocalAlgo =
863 ( aTopAlgoDim <= algo->GetDim() && !aGen->IsGlobalHypothesis( algo, aMesh ));
864 if (!algo->NeedDiscreteBoundary() || isTopLocalAlgo)
866 bool checkNoAlgo2 = ( algo->NeedDiscreteBoundary() );
867 SMESH_subMeshIteratorPtr itsub = aSubMesh->getDependsOnIterator( /*includeSelf=*/false,
868 /*complexShapeFirst=*/true);
869 while ( itsub->more() )
871 // sub-meshes should not be checked further more
872 SMESH_subMesh* sm = itsub->next();
876 //check algo on sub-meshes
877 int aTopAlgoDim2 = algo->GetDim();
878 if (!checkMissing (aGen, aMesh, sm, aTopAlgoDim2,
879 globalChecked, checkNoAlgo2, aCheckedMap, theErrors))
882 if (sm->GetAlgoState() == SMESH_subMesh::NO_ALGO )
883 checkNoAlgo2 = false;
886 aCheckedMap.insert( sm );
892 //=======================================================================
893 //function : CheckAlgoState
894 //purpose : notify on bad state of attached algos, return false
895 // if Compute() would fail because of some algo bad state
896 //=======================================================================
898 bool SMESH_Gen::CheckAlgoState(SMESH_Mesh& aMesh, const TopoDS_Shape& aShape)
900 list< TAlgoStateError > errors;
901 return GetAlgoState( aMesh, aShape, errors );
904 //=======================================================================
905 //function : GetAlgoState
906 //purpose : notify on bad state of attached algos, return false
907 // if Compute() would fail because of some algo bad state
908 // theErrors list contains problems description
909 //=======================================================================
911 bool SMESH_Gen::GetAlgoState(SMESH_Mesh& theMesh,
912 const TopoDS_Shape& theShape,
913 list< TAlgoStateError > & theErrors)
916 bool hasAlgo = false;
918 SMESH_subMesh* sm = theMesh.GetSubMesh(theShape);
919 const SMESHDS_Mesh* meshDS = theMesh.GetMeshDS();
920 TopoDS_Shape mainShape = meshDS->ShapeToMesh();
926 const SMESH_Algo* aGlobAlgoArr[] = {0,0,0,0};
928 const list<const SMESHDS_Hypothesis*>& listHyp = meshDS->GetHypothesis( mainShape );
929 list<const SMESHDS_Hypothesis*>::const_iterator it=listHyp.begin();
930 for ( ; it != listHyp.end(); it++)
932 const SMESHDS_Hypothesis * aHyp = *it;
933 if (aHyp->GetType() == SMESHDS_Hypothesis::PARAM_ALGO)
936 const SMESH_Algo* algo = dynamic_cast<const SMESH_Algo*> (aHyp);
939 int dim = algo->GetDim();
940 aGlobAlgoArr[ dim ] = algo;
945 // --------------------------------------------------------
946 // info on algos that will be ignored because of ones that
947 // don't NeedDiscreteBoundary() attached to super-shapes,
948 // check that a conform mesh will be produced
949 // --------------------------------------------------------
952 // find a global algo possibly hiding sub-algos
954 const SMESH_Algo* aGlobIgnoAlgo = 0;
955 for (dim = 3; dim > 0; dim--)
957 if (aGlobAlgoArr[ dim ] &&
958 !aGlobAlgoArr[ dim ]->NeedDiscreteBoundary() /*&&
959 !aGlobAlgoArr[ dim ]->SupportSubmeshes()*/ )
961 aGlobIgnoAlgo = aGlobAlgoArr[ dim ];
966 set<SMESH_subMesh*> aCheckedSubs;
967 bool checkConform = ( !theMesh.IsNotConformAllowed() );
969 // loop on theShape and its sub-shapes
970 SMESH_subMeshIteratorPtr revItSub = sm->getDependsOnIterator( /*includeSelf=*/true,
971 /*complexShapeFirst=*/true);
972 while ( revItSub->more() )
974 SMESH_subMesh* smToCheck = revItSub->next();
975 if ( smToCheck->GetSubShape().ShapeType() == TopAbs_VERTEX)
978 if ( aCheckedSubs.insert( smToCheck ).second ) // not yet checked
979 if (!checkConformIgnoredAlgos (theMesh, smToCheck, aGlobIgnoAlgo,
980 0, checkConform, aCheckedSubs, theErrors))
983 if ( smToCheck->GetAlgoState() != SMESH_subMesh::NO_ALGO )
987 // ----------------------------------------------------------------
988 // info on missing hypothesis and find out if all needed algos are
990 // ----------------------------------------------------------------
992 // find max dim of global algo
994 for (dim = 3; dim > 0; dim--)
996 if (aGlobAlgoArr[ dim ])
1002 bool checkNoAlgo = theMesh.HasShapeToMesh() ? bool( aTopAlgoDim ) : false;
1003 bool globalChecked[] = { false, false, false, false };
1005 // loop on theShape and its sub-shapes
1006 aCheckedSubs.clear();
1007 revItSub = sm->getDependsOnIterator( /*includeSelf=*/true, /*complexShapeFirst=*/true);
1008 while ( revItSub->more() )
1010 SMESH_subMesh* smToCheck = revItSub->next();
1011 if ( smToCheck->GetSubShape().ShapeType() == TopAbs_VERTEX)
1014 if (!checkMissing (this, theMesh, smToCheck, aTopAlgoDim,
1015 globalChecked, checkNoAlgo, aCheckedSubs, theErrors))
1018 if (smToCheck->GetAlgoState() == SMESH_subMesh::NO_ALGO )
1019 checkNoAlgo = false;
1025 theErrors.push_back( TAlgoStateError() );
1026 theErrors.back().Set( SMESH_Hypothesis::HYP_MISSING, theMesh.HasShapeToMesh() ? 1 : 3, true );
1032 //=======================================================================
1033 //function : IsGlobalHypothesis
1034 //purpose : check if theAlgo is attached to the main shape
1035 //=======================================================================
1037 bool SMESH_Gen::IsGlobalHypothesis(const SMESH_Hypothesis* theHyp, SMESH_Mesh& aMesh)
1039 SMESH_HypoFilter filter( SMESH_HypoFilter::Is( theHyp ));
1040 return aMesh.GetHypothesis( aMesh.GetMeshDS()->ShapeToMesh(), filter, false );
1043 //================================================================================
1045 * \brief Return paths to xml files of plugins
1047 //================================================================================
1049 std::vector< std::string > SMESH_Gen::GetPluginXMLPaths()
1051 // Get paths to xml files of plugins
1052 vector< string > xmlPaths;
1054 if ( const char* meshersList = getenv("SMESH_MeshersList") )
1056 string meshers = meshersList, plugin;
1057 string::size_type from = 0, pos;
1058 while ( from < meshers.size() )
1060 // cut off plugin name
1061 pos = meshers.find( env_sep, from );
1062 if ( pos != string::npos )
1063 plugin = meshers.substr( from, pos-from );
1065 plugin = meshers.substr( from ), pos = meshers.size();
1068 // get PLUGIN_ROOT_DIR path
1069 string rootDirVar, pluginSubDir = plugin;
1070 if ( plugin == "StdMeshers" )
1071 rootDirVar = "SMESH", pluginSubDir = "smesh";
1073 for ( pos = 0; pos < plugin.size(); ++pos )
1074 rootDirVar += toupper( plugin[pos] );
1075 rootDirVar += "_ROOT_DIR";
1077 const char* rootDir = getenv( rootDirVar.c_str() );
1078 if ( !rootDir || strlen(rootDir) == 0 )
1080 rootDirVar = plugin + "_ROOT_DIR"; // HexoticPLUGIN_ROOT_DIR
1081 rootDir = getenv( rootDirVar.c_str() );
1082 if ( !rootDir || strlen(rootDir) == 0 ) continue;
1085 // get a separator from rootDir
1086 for ( int i = strlen( rootDir )-1; i >= 0 && sep.empty(); --i )
1087 if ( rootDir[i] == '/' || rootDir[i] == '\\' )
1093 if (sep.empty() ) sep = "\\";
1095 if (sep.empty() ) sep = "/";
1098 // get a path to resource file
1099 string xmlPath = rootDir;
1100 if ( xmlPath[ xmlPath.size()-1 ] != sep[0] )
1102 xmlPath += "share" + sep + "salome" + sep + "resources" + sep;
1103 for ( pos = 0; pos < pluginSubDir.size(); ++pos )
1104 xmlPath += tolower( pluginSubDir[pos] );
1105 xmlPath += sep + plugin + ".xml";
1109 const wchar_t* path = Kernel_Utils::decode_s(xmlPath);
1110 SMESHUtils::ArrayDeleter<const wchar_t> deleter( path );
1112 const char* path = xmlPath.c_str();
1114 fileOK = (GetFileAttributes(path) != INVALID_FILE_ATTRIBUTES);
1117 fileOK = (access(xmlPath.c_str(), F_OK) == 0);
1120 xmlPaths.push_back( xmlPath );
1127 //=============================================================================
1129 * Finds algo to mesh a shape. Optionally returns a shape the found algo is bound to
1131 //=============================================================================
1133 SMESH_Algo *SMESH_Gen::GetAlgo(SMESH_Mesh & aMesh,
1134 const TopoDS_Shape & aShape,
1135 TopoDS_Shape* assignedTo)
1137 return GetAlgo( aMesh.GetSubMesh( aShape ), assignedTo );
1140 //=============================================================================
1142 * Finds algo to mesh a sub-mesh. Optionally returns a shape the found algo is bound to
1144 //=============================================================================
1146 SMESH_Algo *SMESH_Gen::GetAlgo(SMESH_subMesh * aSubMesh,
1147 TopoDS_Shape* assignedTo)
1149 if ( !aSubMesh ) return 0;
1151 const TopoDS_Shape & aShape = aSubMesh->GetSubShape();
1152 SMESH_Mesh& aMesh = *aSubMesh->GetFather();
1154 SMESH_HypoFilter filter( SMESH_HypoFilter::IsAlgo() );
1155 if ( aMesh.HasShapeToMesh() )
1156 filter.And( filter.IsApplicableTo( aShape ));
1158 typedef SMESH_Algo::Features AlgoData;
1160 TopoDS_Shape assignedToShape;
1162 (SMESH_Algo*) aMesh.GetHypothesis( aSubMesh, filter, true, &assignedToShape );
1165 aShape.ShapeType() == TopAbs_FACE &&
1166 !aShape.IsSame( assignedToShape ) &&
1167 SMESH_MesherHelper::NbAncestors( aShape, aMesh, TopAbs_SOLID ) > 1 )
1169 // Issue 0021559. If there is another 2D algo with different types of output
1170 // elements that can be used to mesh aShape, and 3D algos on adjacent SOLIDs
1171 // have different types of input elements, we choose a most appropriate 2D algo.
1173 // try to find a concurrent 2D algo
1174 filter.AndNot( filter.Is( algo ));
1175 TopoDS_Shape assignedToShape2;
1177 (SMESH_Algo*) aMesh.GetHypothesis( aSubMesh, filter, true, &assignedToShape2 );
1178 if ( algo2 && // algo found
1179 !assignedToShape2.IsSame( aMesh.GetShapeToMesh() ) && // algo is local
1180 ( SMESH_MesherHelper::GetGroupType( assignedToShape2 ) == // algo of the same level
1181 SMESH_MesherHelper::GetGroupType( assignedToShape )) &&
1182 aMesh.IsOrderOK( aMesh.GetSubMesh( assignedToShape2 ), // no forced order
1183 aMesh.GetSubMesh( assignedToShape )))
1185 // get algos on the adjacent SOLIDs
1186 filter.Init( filter.IsAlgo() ).And( filter.HasDim( 3 ));
1187 vector< SMESH_Algo* > algos3D;
1188 PShapeIteratorPtr solidIt = SMESH_MesherHelper::GetAncestors( aShape, aMesh,
1190 while ( const TopoDS_Shape* solid = solidIt->next() )
1191 if ( SMESH_Algo* algo3D = (SMESH_Algo*) aMesh.GetHypothesis( *solid, filter, true ))
1193 algos3D.push_back( algo3D );
1194 filter.AndNot( filter.HasName( algo3D->GetName() ));
1196 // check compatibility of algos
1197 if ( algos3D.size() > 1 )
1199 const AlgoData& algoData = algo->SMESH_Algo::GetFeatures();
1200 const AlgoData& algoData2 = algo2->SMESH_Algo::GetFeatures();
1201 const AlgoData& algoData3d0 = algos3D[0]->SMESH_Algo::GetFeatures();
1202 const AlgoData& algoData3d1 = algos3D[1]->SMESH_Algo::GetFeatures();
1203 if (( algoData2.IsCompatible( algoData3d0 ) &&
1204 algoData2.IsCompatible( algoData3d1 ))
1206 !(algoData.IsCompatible( algoData3d0 ) &&
1207 algoData.IsCompatible( algoData3d1 )))
1213 if ( assignedTo && algo )
1214 * assignedTo = assignedToShape;
1219 //=============================================================================
1221 * Returns StudyContextStruct for a study
1223 //=============================================================================
1225 StudyContextStruct *SMESH_Gen::GetStudyContext()
1227 return _studyContext;
1230 //================================================================================
1232 * \brief Return shape dimension by TopAbs_ShapeEnum
1234 //================================================================================
1236 int SMESH_Gen::GetShapeDim(const TopAbs_ShapeEnum & aShapeType)
1238 static vector<int> dim;
1241 dim.resize( TopAbs_SHAPE, -1 );
1242 dim[ TopAbs_COMPOUND ] = MeshDim_3D;
1243 dim[ TopAbs_COMPSOLID ] = MeshDim_3D;
1244 dim[ TopAbs_SOLID ] = MeshDim_3D;
1245 dim[ TopAbs_SHELL ] = MeshDim_2D;
1246 dim[ TopAbs_FACE ] = MeshDim_2D;
1247 dim[ TopAbs_WIRE ] = MeshDim_1D;
1248 dim[ TopAbs_EDGE ] = MeshDim_1D;
1249 dim[ TopAbs_VERTEX ] = MeshDim_0D;
1251 return dim[ aShapeType ];
1254 //================================================================================
1256 * \brief Return shape dimension by exploding compounds
1258 //================================================================================
1260 int SMESH_Gen::GetFlatShapeDim(const TopoDS_Shape &aShape)
1263 if ( aShape.ShapeType() == TopAbs_COMPOUND ||
1264 aShape.ShapeType() == TopAbs_COMPSOLID )
1266 TopoDS_Iterator it( aShape );
1267 aShapeDim = GetFlatShapeDim( it.Value() );
1270 aShapeDim = GetShapeDim( aShape );
1274 //=============================================================================
1276 * Generate a new id unique within this Gen
1278 //=============================================================================
1280 int SMESH_Gen::GetANewId()