1 // Copyright (C) 2007-2020 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 )
342 // ------------------------------------------------
343 // sort list of sub-meshes according to mesh order
344 // ------------------------------------------------
345 smVec.assign( smWithAlgoSupportingSubmeshes[ aShapeDim ].begin(),
346 smWithAlgoSupportingSubmeshes[ aShapeDim ].end() );
347 aMesh.SortByMeshOrder( smVec );
349 // ------------------------------------------------------------
350 // compute sub-meshes with local uni-dimensional algos under
351 // sub-meshes with all-dimensional algos
352 // ------------------------------------------------------------
353 // start from lower shapes
354 for ( size_t i = 0; i < smVec.size(); ++i )
358 // get a shape the algo is assigned to
359 if ( !GetAlgo( sm, & algoShape ))
360 continue; // strange...
362 // look for more local algos
363 smIt = sm->getDependsOnIterator(!includeSelf, !complexShapeFirst);
364 while ( smIt->more() )
366 SMESH_subMesh* smToCompute = smIt->next();
368 const TopoDS_Shape& aSubShape = smToCompute->GetSubShape();
369 const int aShapeDim = GetShapeDim( aSubShape );
370 if ( aShapeDim < 1 ) continue;
372 // check for preview dimension limitations
373 if ( aShapesId && GetShapeDim( aSubShape.ShapeType() ) > (int)aDim )
376 SMESH_HypoFilter filter( SMESH_HypoFilter::IsAlgo() );
378 .And( SMESH_HypoFilter::IsApplicableTo( aSubShape ))
379 .And( SMESH_HypoFilter::IsMoreLocalThan( algoShape, aMesh ));
381 if ( SMESH_Algo* subAlgo = (SMESH_Algo*) aMesh.GetHypothesis( smToCompute, filter, true))
383 if ( ! subAlgo->NeedDiscreteBoundary() ) continue;
384 TopTools_IndexedMapOfShape* localAllowed = allowedSubShapes;
385 if ( localAllowed && localAllowed->IsEmpty() )
386 localAllowed = 0; // prevent fillAllowed() with aSubShape
388 SMESH_Hypothesis::Hypothesis_Status status;
389 if ( subAlgo->CheckHypothesis( aMesh, aSubShape, status ))
390 // mesh a lower smToCompute starting from vertices
391 Compute( aMesh, aSubShape, aFlags | SHAPE_ONLY_UPWARD, aDim, aShapesId, localAllowed );
395 // --------------------------------
396 // apply the all-dimensional algos
397 // --------------------------------
398 for ( size_t i = 0; i < smVec.size(); ++i )
401 if ( sm->GetComputeState() == SMESH_subMesh::READY_TO_COMPUTE)
403 const TopAbs_ShapeEnum shapeType = sm->GetSubShape().ShapeType();
404 // check for preview dimension limitations
405 if ( aShapesId && GetShapeDim( shapeType ) > (int)aDim )
408 if (_compute_canceled)
410 sm->SetAllowedSubShapes( fillAllowed( shapeSM, aShapeOnly, allowedSubShapes ));
411 setCurrentSubMesh( sm );
412 sm->ComputeStateEngine( computeEvent );
413 setCurrentSubMesh( NULL );
414 sm->SetAllowedSubShapes( nullptr );
416 aShapesId->insert( sm->GetId() );
419 } // loop on shape dimensions
421 // -----------------------------------------------
422 // mesh the rest sub-shapes starting from vertices
423 // -----------------------------------------------
424 ret = Compute( aMesh, aShape, aFlags | UPWARD, aDim, aShapesId, allowedSubShapes );
429 // fix quadratic mesh by bending iternal links near concave boundary
430 if ( aCompactMesh && // a final compute
431 aShape.IsSame( aMesh.GetShapeToMesh() ) &&
432 !aShapesId && // not preview
433 ret ) // everything is OK
435 SMESH_MesherHelper aHelper( aMesh );
436 if ( aHelper.IsQuadraticMesh() != SMESH_MesherHelper::LINEAR )
438 aHelper.FixQuadraticElements( shapeSM->GetComputeError() );
444 aMesh.GetMeshDS()->Modified();
445 aMesh.GetMeshDS()->CompactMesh();
450 //=============================================================================
452 * Prepare Compute a mesh
454 //=============================================================================
455 void SMESH_Gen::PrepareCompute(SMESH_Mesh & /*aMesh*/,
456 const TopoDS_Shape & /*aShape*/)
458 _compute_canceled = false;
459 resetCurrentSubMesh();
462 //=============================================================================
464 * Cancel Compute a mesh
466 //=============================================================================
467 void SMESH_Gen::CancelCompute(SMESH_Mesh & /*aMesh*/,
468 const TopoDS_Shape & /*aShape*/)
470 _compute_canceled = true;
471 if ( const SMESH_subMesh* sm = GetCurrentSubMesh() )
473 const_cast< SMESH_subMesh* >( sm )->ComputeStateEngine( SMESH_subMesh::COMPUTE_CANCELED );
475 resetCurrentSubMesh();
478 //================================================================================
480 * \brief Returns a sub-mesh being currently computed
482 //================================================================================
484 const SMESH_subMesh* SMESH_Gen::GetCurrentSubMesh() const
486 return _sm_current.empty() ? 0 : _sm_current.back();
489 //================================================================================
491 * \brief Sets a sub-mesh being currently computed.
493 * An algorithm can call Compute() for a sub-shape, hence we keep a stack of sub-meshes
495 //================================================================================
497 void SMESH_Gen::setCurrentSubMesh(SMESH_subMesh* sm)
500 _sm_current.push_back( sm );
502 else if ( !_sm_current.empty() )
503 _sm_current.pop_back();
506 void SMESH_Gen::resetCurrentSubMesh()
511 //=============================================================================
515 //=============================================================================
517 bool SMESH_Gen::Evaluate(SMESH_Mesh & aMesh,
518 const TopoDS_Shape & aShape,
519 MapShapeNbElems& aResMap,
521 TSetOfInt* aShapesId)
525 SMESH_subMesh *sm = aMesh.GetSubMesh(aShape);
527 const bool includeSelf = true;
528 const bool complexShapeFirst = true;
529 SMESH_subMeshIteratorPtr smIt;
531 if ( anUpward ) { // is called from below code here
532 // -----------------------------------------------
533 // mesh all the sub-shapes starting from vertices
534 // -----------------------------------------------
535 smIt = sm->getDependsOnIterator(includeSelf, !complexShapeFirst);
536 while ( smIt->more() ) {
537 SMESH_subMesh* smToCompute = smIt->next();
539 // do not mesh vertices of a pseudo shape
540 const TopAbs_ShapeEnum shapeType = smToCompute->GetSubShape().ShapeType();
541 //if ( !aMesh.HasShapeToMesh() && shapeType == TopAbs_VERTEX )
543 if ( !aMesh.HasShapeToMesh() ) {
544 if( shapeType == TopAbs_VERTEX || shapeType == TopAbs_WIRE ||
545 shapeType == TopAbs_SHELL )
549 smToCompute->Evaluate(aResMap);
551 aShapesId->insert( smToCompute->GetId() );
556 // -----------------------------------------------------------------
557 // apply algos that DO NOT require Discreteized boundaries and DO NOT
558 // support sub-meshes, starting from the most complex shapes
559 // and collect sub-meshes with algos that DO support sub-meshes
560 // -----------------------------------------------------------------
561 list< SMESH_subMesh* > smWithAlgoSupportingSubmeshes;
562 smIt = sm->getDependsOnIterator(includeSelf, complexShapeFirst);
563 while ( smIt->more() ) {
564 SMESH_subMesh* smToCompute = smIt->next();
565 const TopoDS_Shape& aSubShape = smToCompute->GetSubShape();
566 const int aShapeDim = GetShapeDim( aSubShape );
567 if ( aShapeDim < 1 ) break;
569 SMESH_Algo* algo = GetAlgo( smToCompute );
570 if ( algo && !algo->NeedDiscreteBoundary() ) {
571 if ( algo->SupportSubmeshes() ) {
572 smWithAlgoSupportingSubmeshes.push_front( smToCompute );
575 smToCompute->Evaluate(aResMap);
577 aShapesId->insert( smToCompute->GetId() );
582 // ------------------------------------------------------------
583 // sort list of meshes according to mesh order
584 // ------------------------------------------------------------
585 std::vector< SMESH_subMesh* > smVec( smWithAlgoSupportingSubmeshes.begin(),
586 smWithAlgoSupportingSubmeshes.end() );
587 aMesh.SortByMeshOrder( smVec );
589 // ------------------------------------------------------------
590 // compute sub-meshes under shapes with algos that DO NOT require
591 // Discreteized boundaries and DO support sub-meshes
592 // ------------------------------------------------------------
593 // start from lower shapes
594 for ( size_t i = 0; i < smVec.size(); ++i )
598 // get a shape the algo is assigned to
599 TopoDS_Shape algoShape;
600 if ( !GetAlgo( sm, & algoShape ))
601 continue; // strange...
603 // look for more local algos
604 smIt = sm->getDependsOnIterator(!includeSelf, !complexShapeFirst);
605 while ( smIt->more() ) {
606 SMESH_subMesh* smToCompute = smIt->next();
608 const TopoDS_Shape& aSubShape = smToCompute->GetSubShape();
609 const int aShapeDim = GetShapeDim( aSubShape );
610 if ( aShapeDim < 1 ) continue;
612 SMESH_HypoFilter filter( SMESH_HypoFilter::IsAlgo() );
614 .And( SMESH_HypoFilter::IsApplicableTo( aSubShape ))
615 .And( SMESH_HypoFilter::IsMoreLocalThan( algoShape, aMesh ));
617 if ( SMESH_Algo* subAlgo = (SMESH_Algo*) aMesh.GetHypothesis( smToCompute, filter, true ))
619 if ( ! subAlgo->NeedDiscreteBoundary() ) continue;
620 SMESH_Hypothesis::Hypothesis_Status status;
621 if ( subAlgo->CheckHypothesis( aMesh, aSubShape, status ))
622 // mesh a lower smToCompute starting from vertices
623 Evaluate( aMesh, aSubShape, aResMap, /*anUpward=*/true, aShapesId );
627 // ----------------------------------------------------------
628 // apply the algos that do not require Discreteized boundaries
629 // ----------------------------------------------------------
630 for ( size_t i = 0; i < smVec.size(); ++i )
633 sm->Evaluate(aResMap);
635 aShapesId->insert( sm->GetId() );
638 // -----------------------------------------------
639 // mesh the rest sub-shapes starting from vertices
640 // -----------------------------------------------
641 ret = Evaluate( aMesh, aShape, aResMap, /*anUpward=*/true, aShapesId );
648 //=======================================================================
649 //function : checkConformIgnoredAlgos
651 //=======================================================================
653 static bool checkConformIgnoredAlgos(SMESH_Mesh& aMesh,
654 SMESH_subMesh* aSubMesh,
655 const SMESH_Algo* aGlobIgnoAlgo,
656 const SMESH_Algo* aLocIgnoAlgo,
658 set<SMESH_subMesh*>& aCheckedMap,
659 list< SMESH_Gen::TAlgoStateError > & theErrors)
662 if ( aSubMesh->GetSubShape().ShapeType() == TopAbs_VERTEX)
668 const list<const SMESHDS_Hypothesis*>& listHyp =
669 aMesh.GetMeshDS()->GetHypothesis( aSubMesh->GetSubShape() );
670 list<const SMESHDS_Hypothesis*>::const_iterator it=listHyp.begin();
671 for ( ; it != listHyp.end(); it++)
673 const SMESHDS_Hypothesis * aHyp = *it;
674 if (aHyp->GetType() == SMESHDS_Hypothesis::PARAM_ALGO)
677 const SMESH_Algo* algo = dynamic_cast<const SMESH_Algo*> (aHyp);
680 if ( aLocIgnoAlgo ) // algo is hidden by a local algo of upper dim
682 theErrors.push_back( SMESH_Gen::TAlgoStateError() );
683 theErrors.back().Set( SMESH_Hypothesis::HYP_HIDDEN_ALGO, algo, false );
684 INFOS( "Local <" << algo->GetName() << "> is hidden by local <"
685 << aLocIgnoAlgo->GetName() << ">");
689 bool isGlobal = (aMesh.IsMainShape( aSubMesh->GetSubShape() ));
690 int dim = algo->GetDim();
691 int aMaxGlobIgnoDim = ( aGlobIgnoAlgo ? aGlobIgnoAlgo->GetDim() : -1 );
692 bool isNeededDim = ( aGlobIgnoAlgo ? aGlobIgnoAlgo->NeedLowerHyps( dim ) : false );
694 if (( dim < aMaxGlobIgnoDim && !isNeededDim ) &&
695 ( isGlobal || !aGlobIgnoAlgo->SupportSubmeshes() ))
697 // algo is hidden by a global algo
698 theErrors.push_back( SMESH_Gen::TAlgoStateError() );
699 theErrors.back().Set( SMESH_Hypothesis::HYP_HIDDEN_ALGO, algo, true );
700 INFOS( ( isGlobal ? "Global" : "Local" )
701 << " <" << algo->GetName() << "> is hidden by global <"
702 << aGlobIgnoAlgo->GetName() << ">");
704 else if ( !algo->NeedDiscreteBoundary() && !isGlobal)
706 // local algo is not hidden and hides algos on sub-shapes
707 if (checkConform && !aSubMesh->IsConform( algo ))
710 checkConform = false; // no more check conformity
711 INFOS( "ERROR: Local <" << algo->GetName() <<
712 "> would produce not conform mesh: "
713 "<Not Conform Mesh Allowed> hypothesis is missing");
714 theErrors.push_back( SMESH_Gen::TAlgoStateError() );
715 theErrors.back().Set( SMESH_Hypothesis::HYP_NOTCONFORM, algo, false );
718 // sub-algos will be hidden by a local <algo> if <algo> does not support sub-meshes
719 if ( algo->SupportSubmeshes() )
721 SMESH_subMeshIteratorPtr revItSub =
722 aSubMesh->getDependsOnIterator( /*includeSelf=*/false, /*complexShapeFirst=*/true);
723 bool checkConform2 = false;
724 while ( revItSub->more() )
726 SMESH_subMesh* sm = revItSub->next();
727 checkConformIgnoredAlgos (aMesh, sm, aGlobIgnoAlgo,
728 algo, checkConform2, aCheckedMap, theErrors);
729 aCheckedMap.insert( sm );
738 //=======================================================================
739 //function : checkMissing
740 //purpose : notify on missing hypothesis
741 // Return false if algo or hipothesis is missing
742 //=======================================================================
744 static bool checkMissing(SMESH_Gen* aGen,
746 SMESH_subMesh* aSubMesh,
747 const int aTopAlgoDim,
749 const bool checkNoAlgo,
750 set<SMESH_subMesh*>& aCheckedMap,
751 list< SMESH_Gen::TAlgoStateError > & theErrors)
753 switch ( aSubMesh->GetSubShape().ShapeType() )
757 case TopAbs_SOLID: break; // check this sub-mesh, it can be meshed
759 return true; // not meshable sub-mesh
761 if ( aCheckedMap.count( aSubMesh ))
765 SMESH_Algo* algo = 0;
767 switch (aSubMesh->GetAlgoState())
769 case SMESH_subMesh::NO_ALGO: {
772 // should there be any algo?
773 int shapeDim = SMESH_Gen::GetShapeDim( aSubMesh->GetSubShape() );
774 if (aTopAlgoDim > shapeDim)
776 MESSAGE( "ERROR: " << shapeDim << "D algorithm is missing" );
778 theErrors.push_back( SMESH_Gen::TAlgoStateError() );
779 theErrors.back().Set( SMESH_Hypothesis::HYP_MISSING, shapeDim, true );
784 case SMESH_subMesh::MISSING_HYP: {
785 // notify if an algo missing hyp is attached to aSubMesh
786 algo = aSubMesh->GetAlgo();
788 bool IsGlobalHypothesis = aGen->IsGlobalHypothesis( algo, aMesh );
789 if (!IsGlobalHypothesis || !globalChecked[ algo->GetDim() ])
791 TAlgoStateErrorName errName = SMESH_Hypothesis::HYP_MISSING;
792 SMESH_Hypothesis::Hypothesis_Status status;
793 algo->CheckHypothesis( aMesh, aSubMesh->GetSubShape(), status );
794 if ( status == SMESH_Hypothesis::HYP_BAD_PARAMETER ) {
795 MESSAGE( "ERROR: hypothesis of " << (IsGlobalHypothesis ? "Global " : "Local ")
796 << "<" << algo->GetName() << "> has a bad parameter value");
798 } else if ( status == SMESH_Hypothesis::HYP_BAD_GEOMETRY ) {
799 MESSAGE( "ERROR: " << (IsGlobalHypothesis ? "Global " : "Local ")
800 << "<" << algo->GetName() << "> assigned to mismatching geometry");
803 MESSAGE( "ERROR: " << (IsGlobalHypothesis ? "Global " : "Local ")
804 << "<" << algo->GetName() << "> misses some hypothesis");
806 if (IsGlobalHypothesis)
807 globalChecked[ algo->GetDim() ] = true;
808 theErrors.push_back( SMESH_Gen::TAlgoStateError() );
809 theErrors.back().Set( errName, algo, IsGlobalHypothesis );
814 case SMESH_subMesh::HYP_OK:
815 algo = aSubMesh->GetAlgo();
817 if (!algo->NeedDiscreteBoundary())
819 SMESH_subMeshIteratorPtr itsub = aSubMesh->getDependsOnIterator( /*includeSelf=*/false,
820 /*complexShapeFirst=*/false);
821 while ( itsub->more() )
822 aCheckedMap.insert( itsub->next() );
828 // do not check under algo that hides sub-algos or
829 // re-start checking NO_ALGO state
831 bool isTopLocalAlgo =
832 ( aTopAlgoDim <= algo->GetDim() && !aGen->IsGlobalHypothesis( algo, aMesh ));
833 if (!algo->NeedDiscreteBoundary() || isTopLocalAlgo)
835 bool checkNoAlgo2 = ( algo->NeedDiscreteBoundary() );
836 SMESH_subMeshIteratorPtr itsub = aSubMesh->getDependsOnIterator( /*includeSelf=*/false,
837 /*complexShapeFirst=*/true);
838 while ( itsub->more() )
840 // sub-meshes should not be checked further more
841 SMESH_subMesh* sm = itsub->next();
845 //check algo on sub-meshes
846 int aTopAlgoDim2 = algo->GetDim();
847 if (!checkMissing (aGen, aMesh, sm, aTopAlgoDim2,
848 globalChecked, checkNoAlgo2, aCheckedMap, theErrors))
851 if (sm->GetAlgoState() == SMESH_subMesh::NO_ALGO )
852 checkNoAlgo2 = false;
855 aCheckedMap.insert( sm );
861 //=======================================================================
862 //function : CheckAlgoState
863 //purpose : notify on bad state of attached algos, return false
864 // if Compute() would fail because of some algo bad state
865 //=======================================================================
867 bool SMESH_Gen::CheckAlgoState(SMESH_Mesh& aMesh, const TopoDS_Shape& aShape)
869 list< TAlgoStateError > errors;
870 return GetAlgoState( aMesh, aShape, errors );
873 //=======================================================================
874 //function : GetAlgoState
875 //purpose : notify on bad state of attached algos, return false
876 // if Compute() would fail because of some algo bad state
877 // theErrors list contains problems description
878 //=======================================================================
880 bool SMESH_Gen::GetAlgoState(SMESH_Mesh& theMesh,
881 const TopoDS_Shape& theShape,
882 list< TAlgoStateError > & theErrors)
885 bool hasAlgo = false;
887 SMESH_subMesh* sm = theMesh.GetSubMesh(theShape);
888 const SMESHDS_Mesh* meshDS = theMesh.GetMeshDS();
889 TopoDS_Shape mainShape = meshDS->ShapeToMesh();
895 const SMESH_Algo* aGlobAlgoArr[] = {0,0,0,0};
897 const list<const SMESHDS_Hypothesis*>& listHyp = meshDS->GetHypothesis( mainShape );
898 list<const SMESHDS_Hypothesis*>::const_iterator it=listHyp.begin();
899 for ( ; it != listHyp.end(); it++)
901 const SMESHDS_Hypothesis * aHyp = *it;
902 if (aHyp->GetType() == SMESHDS_Hypothesis::PARAM_ALGO)
905 const SMESH_Algo* algo = dynamic_cast<const SMESH_Algo*> (aHyp);
908 int dim = algo->GetDim();
909 aGlobAlgoArr[ dim ] = algo;
914 // --------------------------------------------------------
915 // info on algos that will be ignored because of ones that
916 // don't NeedDiscreteBoundary() attached to super-shapes,
917 // check that a conform mesh will be produced
918 // --------------------------------------------------------
921 // find a global algo possibly hiding sub-algos
923 const SMESH_Algo* aGlobIgnoAlgo = 0;
924 for (dim = 3; dim > 0; dim--)
926 if (aGlobAlgoArr[ dim ] &&
927 !aGlobAlgoArr[ dim ]->NeedDiscreteBoundary() /*&&
928 !aGlobAlgoArr[ dim ]->SupportSubmeshes()*/ )
930 aGlobIgnoAlgo = aGlobAlgoArr[ dim ];
935 set<SMESH_subMesh*> aCheckedSubs;
936 bool checkConform = ( !theMesh.IsNotConformAllowed() );
938 // loop on theShape and its sub-shapes
939 SMESH_subMeshIteratorPtr revItSub = sm->getDependsOnIterator( /*includeSelf=*/true,
940 /*complexShapeFirst=*/true);
941 while ( revItSub->more() )
943 SMESH_subMesh* smToCheck = revItSub->next();
944 if ( smToCheck->GetSubShape().ShapeType() == TopAbs_VERTEX)
947 if ( aCheckedSubs.insert( smToCheck ).second ) // not yet checked
948 if (!checkConformIgnoredAlgos (theMesh, smToCheck, aGlobIgnoAlgo,
949 0, checkConform, aCheckedSubs, theErrors))
952 if ( smToCheck->GetAlgoState() != SMESH_subMesh::NO_ALGO )
956 // ----------------------------------------------------------------
957 // info on missing hypothesis and find out if all needed algos are
959 // ----------------------------------------------------------------
961 // find max dim of global algo
963 for (dim = 3; dim > 0; dim--)
965 if (aGlobAlgoArr[ dim ])
971 bool checkNoAlgo = theMesh.HasShapeToMesh() ? bool( aTopAlgoDim ) : false;
972 bool globalChecked[] = { false, false, false, false };
974 // loop on theShape and its sub-shapes
975 aCheckedSubs.clear();
976 revItSub = sm->getDependsOnIterator( /*includeSelf=*/true, /*complexShapeFirst=*/true);
977 while ( revItSub->more() )
979 SMESH_subMesh* smToCheck = revItSub->next();
980 if ( smToCheck->GetSubShape().ShapeType() == TopAbs_VERTEX)
983 if (!checkMissing (this, theMesh, smToCheck, aTopAlgoDim,
984 globalChecked, checkNoAlgo, aCheckedSubs, theErrors))
987 if (smToCheck->GetAlgoState() == SMESH_subMesh::NO_ALGO )
994 theErrors.push_back( TAlgoStateError() );
995 theErrors.back().Set( SMESH_Hypothesis::HYP_MISSING, theMesh.HasShapeToMesh() ? 1 : 3, true );
1001 //=======================================================================
1002 //function : IsGlobalHypothesis
1003 //purpose : check if theAlgo is attached to the main shape
1004 //=======================================================================
1006 bool SMESH_Gen::IsGlobalHypothesis(const SMESH_Hypothesis* theHyp, SMESH_Mesh& aMesh)
1008 SMESH_HypoFilter filter( SMESH_HypoFilter::Is( theHyp ));
1009 return aMesh.GetHypothesis( aMesh.GetMeshDS()->ShapeToMesh(), filter, false );
1012 //================================================================================
1014 * \brief Return paths to xml files of plugins
1016 //================================================================================
1018 std::vector< std::string > SMESH_Gen::GetPluginXMLPaths()
1020 // Get paths to xml files of plugins
1021 vector< string > xmlPaths;
1023 if ( const char* meshersList = getenv("SMESH_MeshersList") )
1025 string meshers = meshersList, plugin;
1026 string::size_type from = 0, pos;
1027 while ( from < meshers.size() )
1029 // cut off plugin name
1030 pos = meshers.find( env_sep, from );
1031 if ( pos != string::npos )
1032 plugin = meshers.substr( from, pos-from );
1034 plugin = meshers.substr( from ), pos = meshers.size();
1037 // get PLUGIN_ROOT_DIR path
1038 string rootDirVar, pluginSubDir = plugin;
1039 if ( plugin == "StdMeshers" )
1040 rootDirVar = "SMESH", pluginSubDir = "smesh";
1042 for ( pos = 0; pos < plugin.size(); ++pos )
1043 rootDirVar += toupper( plugin[pos] );
1044 rootDirVar += "_ROOT_DIR";
1046 const char* rootDir = getenv( rootDirVar.c_str() );
1047 if ( !rootDir || strlen(rootDir) == 0 )
1049 rootDirVar = plugin + "_ROOT_DIR"; // HexoticPLUGIN_ROOT_DIR
1050 rootDir = getenv( rootDirVar.c_str() );
1051 if ( !rootDir || strlen(rootDir) == 0 ) continue;
1054 // get a separator from rootDir
1055 for ( int i = strlen( rootDir )-1; i >= 0 && sep.empty(); --i )
1056 if ( rootDir[i] == '/' || rootDir[i] == '\\' )
1062 if (sep.empty() ) sep = "\\";
1064 if (sep.empty() ) sep = "/";
1067 // get a path to resource file
1068 string xmlPath = rootDir;
1069 if ( xmlPath[ xmlPath.size()-1 ] != sep[0] )
1071 xmlPath += "share" + sep + "salome" + sep + "resources" + sep;
1072 for ( pos = 0; pos < pluginSubDir.size(); ++pos )
1073 xmlPath += tolower( pluginSubDir[pos] );
1074 xmlPath += sep + plugin + ".xml";
1078 const wchar_t* path = Kernel_Utils::decode_s(xmlPath);
1080 const char* path = xmlPath.c_str();
1082 fileOK = (GetFileAttributes(path) != INVALID_FILE_ATTRIBUTES);
1087 fileOK = (access(xmlPath.c_str(), F_OK) == 0);
1090 xmlPaths.push_back( xmlPath );
1097 //=============================================================================
1099 * Finds algo to mesh a shape. Optionally returns a shape the found algo is bound to
1101 //=============================================================================
1103 SMESH_Algo *SMESH_Gen::GetAlgo(SMESH_Mesh & aMesh,
1104 const TopoDS_Shape & aShape,
1105 TopoDS_Shape* assignedTo)
1107 return GetAlgo( aMesh.GetSubMesh( aShape ), assignedTo );
1110 //=============================================================================
1112 * Finds algo to mesh a sub-mesh. Optionally returns a shape the found algo is bound to
1114 //=============================================================================
1116 SMESH_Algo *SMESH_Gen::GetAlgo(SMESH_subMesh * aSubMesh,
1117 TopoDS_Shape* assignedTo)
1119 if ( !aSubMesh ) return 0;
1121 const TopoDS_Shape & aShape = aSubMesh->GetSubShape();
1122 SMESH_Mesh& aMesh = *aSubMesh->GetFather();
1124 SMESH_HypoFilter filter( SMESH_HypoFilter::IsAlgo() );
1125 if ( aMesh.HasShapeToMesh() )
1126 filter.And( filter.IsApplicableTo( aShape ));
1128 typedef SMESH_Algo::Features AlgoData;
1130 TopoDS_Shape assignedToShape;
1132 (SMESH_Algo*) aMesh.GetHypothesis( aSubMesh, filter, true, &assignedToShape );
1135 aShape.ShapeType() == TopAbs_FACE &&
1136 !aShape.IsSame( assignedToShape ) &&
1137 SMESH_MesherHelper::NbAncestors( aShape, aMesh, TopAbs_SOLID ) > 1 )
1139 // Issue 0021559. If there is another 2D algo with different types of output
1140 // elements that can be used to mesh aShape, and 3D algos on adjacent SOLIDs
1141 // have different types of input elements, we choose a most appropriate 2D algo.
1143 // try to find a concurrent 2D algo
1144 filter.AndNot( filter.Is( algo ));
1145 TopoDS_Shape assignedToShape2;
1147 (SMESH_Algo*) aMesh.GetHypothesis( aSubMesh, filter, true, &assignedToShape2 );
1148 if ( algo2 && // algo found
1149 !assignedToShape2.IsSame( aMesh.GetShapeToMesh() ) && // algo is local
1150 ( SMESH_MesherHelper::GetGroupType( assignedToShape2 ) == // algo of the same level
1151 SMESH_MesherHelper::GetGroupType( assignedToShape )) &&
1152 aMesh.IsOrderOK( aMesh.GetSubMesh( assignedToShape2 ), // no forced order
1153 aMesh.GetSubMesh( assignedToShape )))
1155 // get algos on the adjacent SOLIDs
1156 filter.Init( filter.IsAlgo() ).And( filter.HasDim( 3 ));
1157 vector< SMESH_Algo* > algos3D;
1158 PShapeIteratorPtr solidIt = SMESH_MesherHelper::GetAncestors( aShape, aMesh,
1160 while ( const TopoDS_Shape* solid = solidIt->next() )
1161 if ( SMESH_Algo* algo3D = (SMESH_Algo*) aMesh.GetHypothesis( *solid, filter, true ))
1163 algos3D.push_back( algo3D );
1164 filter.AndNot( filter.HasName( algo3D->GetName() ));
1166 // check compatibility of algos
1167 if ( algos3D.size() > 1 )
1169 const AlgoData& algoData = algo->SMESH_Algo::GetFeatures();
1170 const AlgoData& algoData2 = algo2->SMESH_Algo::GetFeatures();
1171 const AlgoData& algoData3d0 = algos3D[0]->SMESH_Algo::GetFeatures();
1172 const AlgoData& algoData3d1 = algos3D[1]->SMESH_Algo::GetFeatures();
1173 if (( algoData2.IsCompatible( algoData3d0 ) &&
1174 algoData2.IsCompatible( algoData3d1 ))
1176 !(algoData.IsCompatible( algoData3d0 ) &&
1177 algoData.IsCompatible( algoData3d1 )))
1183 if ( assignedTo && algo )
1184 * assignedTo = assignedToShape;
1189 //=============================================================================
1191 * Returns StudyContextStruct for a study
1193 //=============================================================================
1195 StudyContextStruct *SMESH_Gen::GetStudyContext()
1197 return _studyContext;
1200 //================================================================================
1202 * \brief Return shape dimension by TopAbs_ShapeEnum
1204 //================================================================================
1206 int SMESH_Gen::GetShapeDim(const TopAbs_ShapeEnum & aShapeType)
1208 static vector<int> dim;
1211 dim.resize( TopAbs_SHAPE, -1 );
1212 dim[ TopAbs_COMPOUND ] = MeshDim_3D;
1213 dim[ TopAbs_COMPSOLID ] = MeshDim_3D;
1214 dim[ TopAbs_SOLID ] = MeshDim_3D;
1215 dim[ TopAbs_SHELL ] = MeshDim_2D;
1216 dim[ TopAbs_FACE ] = MeshDim_2D;
1217 dim[ TopAbs_WIRE ] = MeshDim_1D;
1218 dim[ TopAbs_EDGE ] = MeshDim_1D;
1219 dim[ TopAbs_VERTEX ] = MeshDim_0D;
1221 return dim[ aShapeType ];
1224 //=============================================================================
1226 * Generate a new id unique within this Gen
1228 //=============================================================================
1230 int SMESH_Gen::GetANewId()