1 // SMESH SMESH : implementaion of SMESH idl descriptions
3 // Copyright (C) 2003 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
6 // This library is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU Lesser General Public
8 // License as published by the Free Software Foundation; either
9 // version 2.1 of the License.
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // Lesser General Public License for more details.
16 // You should have received a copy of the GNU Lesser General Public
17 // License along with this library; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 // See http://www.opencascade.org/SALOME/ or email : webmaster.salome@opencascade.org
24 // File : SMESH_Gen.cxx
25 // Author : Paul RASCLE, EDF
29 #include "SMESH_Gen.hxx"
30 #include "SMESH_subMesh.hxx"
31 #include "SMESH_HypoFilter.hxx"
32 #include "SMDS_MeshElement.hxx"
33 #include "SMDS_MeshNode.hxx"
35 #include "utilities.h"
37 #include "Utils_ExceptHandlers.hxx"
40 #include <BRep_Tool.hxx>
41 #include <TopTools_ListOfShape.hxx>
42 #include <TopTools_ListIteratorOfListOfShape.hxx>
46 //=============================================================================
48 * default constructor:
50 //=============================================================================
52 SMESH_Gen::SMESH_Gen()
54 MESSAGE("SMESH_Gen::SMESH_Gen");
59 //=============================================================================
63 //=============================================================================
65 SMESH_Gen::~SMESH_Gen()
67 MESSAGE("SMESH_Gen::~SMESH_Gen");
70 //=============================================================================
74 //=============================================================================
76 /*SMESH_Hypothesis *SMESH_Gen::CreateHypothesis(const char *anHyp, int studyId)
77 throw(SALOME_Exception)
80 MESSAGE("CreateHypothesis("<<anHyp<<","<<studyId<<")");
81 // Get studyContext, create it if it does'nt exist, with a SMESHDS_Document
83 StudyContextStruct *myStudyContext = GetStudyContext(studyId);
85 // create a new hypothesis object, store its ref. in studyContext
87 SMESH_Hypothesis *myHypothesis = _hypothesisFactory.Create(anHyp, studyId);
88 int hypId = myHypothesis->GetID();
89 myStudyContext->mapHypothesis[hypId] = myHypothesis;
93 // store hypothesis in SMESHDS document
95 myStudyContext->myDocument->AddHypothesis(myHypothesis);
99 //=============================================================================
103 //=============================================================================
105 SMESH_Mesh* SMESH_Gen::CreateMesh(int studyId)
106 throw(SALOME_Exception)
108 Unexpect aCatch(SalomeException);
109 MESSAGE("SMESH_Gen::CreateMesh");
110 // if (aShape.ShapeType() == TopAbs_COMPOUND)
112 // INFOS("Mesh Compound not yet implemented!");
113 // throw(SALOME_Exception(LOCALIZED("Mesh Compound not yet implemented!")));
116 // Get studyContext, create it if it does'nt exist, with a SMESHDS_Document
118 StudyContextStruct *myStudyContext = GetStudyContext(studyId);
120 // create a new SMESH_mesh object
122 SMESH_Mesh *mesh = new SMESH_Mesh(_localId++,
125 myStudyContext->myDocument);
126 myStudyContext->mapMesh[_localId] = mesh;
128 // associate a TopoDS_Shape to the mesh
130 //mesh->ShapeToMesh(aShape);
134 //=============================================================================
138 //=============================================================================
140 bool SMESH_Gen::Compute(SMESH_Mesh & aMesh, const TopoDS_Shape & aShape)
142 MESSAGE("SMESH_Gen::Compute");
143 // bool isDone = false;
145 Algo : s'appuie ou non sur une geometrie
147 Vertex : rien à faire (range le point)
148 Edge, Wire, collection d'edge et wire : 1D
149 Face, Shell, collection de Face et Shells : 2D
150 Solid, Collection de Solid : 3D
152 // *** corriger commentaires
153 // check hypothesis associated to the mesh :
154 // - only one algo : type compatible with the type of the shape
155 // - hypothesis = compatible with algo
156 // - check if hypothesis are applicable to this algo
157 // - check contradictions within hypothesis
158 // (test if enough hypothesis is done further)
162 // if ( !CheckAlgoState( aMesh, aShape ))
164 // INFOS( "ABORT MESHING: some algos or hypothesis are missing");
168 SMESH_subMesh *sm = aMesh.GetSubMesh(aShape);
170 if ( sm->GetComputeState() == SMESH_subMesh::COMPUTE_OK )
171 return true; // already computed
173 // -----------------------------------------------------------------
174 // apply algos that do not require descretized boundaries, starting
175 // from the most complex shapes
176 // -----------------------------------------------------------------
178 // map containing all subshapes in the order: vertices, edges, faces...
179 const map<int, SMESH_subMesh*>& smMap = sm->DependsOn();
180 map<int, SMESH_subMesh*>::const_reverse_iterator revItSub = smMap.rbegin();
182 SMESH_subMesh* smToCompute = sm;
183 while ( smToCompute )
185 const TopoDS_Shape& aSubShape = smToCompute->GetSubShape();
186 if ( GetShapeDim( aSubShape ) < 1 ) break;
188 SMESH_Algo* algo = GetAlgo( aMesh, aSubShape );
189 if (algo && !algo->NeedDescretBoundary()) {
190 if (smToCompute->GetComputeState() == SMESH_subMesh::READY_TO_COMPUTE) {
191 ret = smToCompute->ComputeStateEngine( SMESH_subMesh::COMPUTE );
192 } else if (smToCompute->GetComputeState() == SMESH_subMesh::FAILED_TO_COMPUTE) {
202 if (revItSub != smMap.rend())
204 smToCompute = (*revItSub).second;
211 // -----------------------------------------------
212 // mesh the rest subshapes starting from vertices
213 // -----------------------------------------------
215 int i, nbSub = smMap.size();
216 map<int, SMESH_subMesh*>::const_iterator itSub = smMap.begin();
217 for ( i = 0; i <= nbSub; ++i ) // loop on the whole map plus <sm>
219 if ( itSub == smMap.end() )
222 smToCompute = (itSub++)->second;
223 if (smToCompute->GetComputeState() != SMESH_subMesh::READY_TO_COMPUTE) {
224 if (smToCompute->GetComputeState() == SMESH_subMesh::FAILED_TO_COMPUTE)
228 TopoDS_Shape subShape = smToCompute->GetSubShape();
229 if ( subShape.ShapeType() != TopAbs_VERTEX )
231 if ( !smToCompute->ComputeStateEngine(SMESH_subMesh::COMPUTE) )
236 TopoDS_Vertex V1 = TopoDS::Vertex(subShape);
237 gp_Pnt P1 = BRep_Tool::Pnt(V1);
238 SMESHDS_Mesh * meshDS = aMesh.GetMeshDS();
239 SMDS_MeshNode * node = meshDS->AddNode(P1.X(), P1.Y(), P1.Z());
240 if ( node ) { // san - increase robustness
241 meshDS->SetNodeOnVertex(node, V1);
242 smToCompute->ComputeStateEngine(SMESH_subMesh::COMPUTE);
247 MESSAGE( "VSR - SMESH_Gen::Compute() finished, OK = " << ret);
252 //=======================================================================
253 //function : checkConformIgnoredAlgos
255 //=======================================================================
257 static bool checkConformIgnoredAlgos(SMESH_Mesh& aMesh,
258 SMESH_subMesh* aSubMesh,
259 const SMESH_Algo* aGlobIgnoAlgo,
260 const SMESH_Algo* aLocIgnoAlgo,
262 map<int, SMESH_subMesh*>& aCheckedMap,
263 list< SMESH_Gen::TAlgoStateError > & theErrors)
266 if ( aSubMesh->GetSubShape().ShapeType() == TopAbs_VERTEX)
272 const list<const SMESHDS_Hypothesis*>& listHyp =
273 aMesh.GetMeshDS()->GetHypothesis( aSubMesh->GetSubShape() );
274 list<const SMESHDS_Hypothesis*>::const_iterator it=listHyp.begin();
275 for ( ; it != listHyp.end(); it++)
277 const SMESHDS_Hypothesis * aHyp = *it;
278 if (aHyp->GetType() == SMESHDS_Hypothesis::PARAM_ALGO)
281 const SMESH_Algo* algo = dynamic_cast<const SMESH_Algo*> (aHyp);
284 if ( aLocIgnoAlgo ) // algo is hidden by a local algo of upper dim
286 INFOS( "Local <" << algo->GetName() << "> is hidden by local <"
287 << aLocIgnoAlgo->GetName() << ">");
291 bool isGlobal = (aMesh.IsMainShape( aSubMesh->GetSubShape() ));
292 int dim = algo->GetDim();
293 int aMaxGlobIgnoDim = ( aGlobIgnoAlgo ? aGlobIgnoAlgo->GetDim() : -1 );
295 if ( dim < aMaxGlobIgnoDim )
297 // algo is hidden by a global algo
298 INFOS( ( isGlobal ? "Global" : "Local" )
299 << " <" << algo->GetName() << "> is hidden by global <"
300 << aGlobIgnoAlgo->GetName() << ">");
302 else if ( !algo->NeedDescretBoundary() && !isGlobal)
304 // local algo is not hidden and hides algos on sub-shapes
305 if (checkConform && !aSubMesh->IsConform( algo ))
308 checkConform = false; // no more check conformity
309 INFOS( "ERROR: Local <" << algo->GetName() <<
310 "> would produce not conform mesh: "
311 "<Not Conform Mesh Allowed> hypotesis is missing");
312 theErrors.push_back( SMESH_Gen::TAlgoStateError() );
313 theErrors.back().Set( SMESH_Gen::NOT_CONFORM_MESH, algo, false );
316 // sub-algos will be hidden by a local <algo>
317 const map<int, SMESH_subMesh*>& smMap = aSubMesh->DependsOn();
318 map<int, SMESH_subMesh*>::const_reverse_iterator revItSub;
319 bool checkConform2 = false;
320 for ( revItSub = smMap.rbegin(); revItSub != smMap.rend(); revItSub++)
322 checkConformIgnoredAlgos (aMesh, (*revItSub).second, aGlobIgnoAlgo,
323 algo, checkConform2, aCheckedMap, theErrors);
324 int key = (*revItSub).first;
325 SMESH_subMesh* sm = (*revItSub).second;
326 if ( aCheckedMap.find( key ) == aCheckedMap.end() )
328 aCheckedMap[ key ] = sm;
338 //=======================================================================
339 //function : checkMissing
340 //purpose : notify on missing hypothesis
341 // Return false if algo or hipothesis is missing
342 //=======================================================================
344 static bool checkMissing(SMESH_Gen* aGen,
346 SMESH_subMesh* aSubMesh,
347 const int aTopAlgoDim,
349 const bool checkNoAlgo,
350 map<int, SMESH_subMesh*>& aCheckedMap,
351 list< SMESH_Gen::TAlgoStateError > & theErrors)
353 if ( aSubMesh->GetSubShape().ShapeType() == TopAbs_VERTEX)
356 //MESSAGE("=====checkMissing");
359 SMESH_Algo* algo = 0;
361 switch (aSubMesh->GetAlgoState())
363 case SMESH_subMesh::NO_ALGO: {
366 // should there be any algo?
367 int shapeDim = SMESH_Gen::GetShapeDim( aSubMesh->GetSubShape() );
368 if (aTopAlgoDim > shapeDim)
370 INFOS( "ERROR: " << shapeDim << "D algorithm is missing" );
372 theErrors.push_back( SMESH_Gen::TAlgoStateError() );
373 theErrors.back().Set( SMESH_Gen::MISSING_ALGO, shapeDim, true );
378 case SMESH_subMesh::MISSING_HYP: {
379 // notify if an algo missing hyp is attached to aSubMesh
380 algo = aGen->GetAlgo( aMesh, aSubMesh->GetSubShape() );
382 bool IsGlobalHypothesis = aGen->IsGlobalHypothesis( algo, aMesh );
383 if (!IsGlobalHypothesis || !globalChecked[ algo->GetDim() ])
385 INFOS( "ERROR: " << (IsGlobalHypothesis ? "Global " : "Local ")
386 << "<" << algo->GetName() << "> misses some hypothesis");
387 if (IsGlobalHypothesis)
388 globalChecked[ algo->GetDim() ] = true;
389 theErrors.push_back( SMESH_Gen::TAlgoStateError() );
390 theErrors.back().Set( SMESH_Gen::MISSING_HYPO, algo, IsGlobalHypothesis );
395 case SMESH_subMesh::HYP_OK:
396 algo = aGen->GetAlgo( aMesh, aSubMesh->GetSubShape() );
402 // do not check under algo that hides sub-algos or
403 // re-start checking NO_ALGO state
405 bool isTopLocalAlgo =
406 ( aTopAlgoDim <= algo->GetDim() && !aGen->IsGlobalHypothesis( algo, aMesh ));
407 if (!algo->NeedDescretBoundary() || isTopLocalAlgo)
409 bool checkNoAlgo2 = ( algo->NeedDescretBoundary() );
410 const map<int, SMESH_subMesh*>& subMeshes = aSubMesh->DependsOn();
411 map<int, SMESH_subMesh*>::const_iterator itsub;
412 for (itsub = subMeshes.begin(); itsub != subMeshes.end(); itsub++)
414 // sub-meshes should not be checked further more
415 int key = (*itsub).first;
416 SMESH_subMesh* sm = (*itsub).second;
417 if ( aCheckedMap.find( key ) == aCheckedMap.end() )
418 aCheckedMap[ key ] = sm;
422 //check algo on sub-meshes
423 int aTopAlgoDim2 = algo->GetDim();
424 if (!checkMissing (aGen, aMesh, sm, aTopAlgoDim2,
425 globalChecked, checkNoAlgo2, aCheckedMap, theErrors))
428 if (sm->GetAlgoState() == SMESH_subMesh::NO_ALGO )
429 checkNoAlgo2 = false;
437 //=======================================================================
438 //function : CheckAlgoState
439 //purpose : notify on bad state of attached algos, return false
440 // if Compute() would fail because of some algo bad state
441 //=======================================================================
443 bool SMESH_Gen::CheckAlgoState(SMESH_Mesh& aMesh, const TopoDS_Shape& aShape)
445 list< TAlgoStateError > errors;
446 return GetAlgoState( aMesh, aShape, errors );
449 //=======================================================================
450 //function : GetAlgoState
451 //purpose : notify on bad state of attached algos, return false
452 // if Compute() would fail because of some algo bad state
453 // theErrors list contains problems description
454 //=======================================================================
456 bool SMESH_Gen::GetAlgoState(SMESH_Mesh& theMesh,
457 const TopoDS_Shape& theShape,
458 list< TAlgoStateError > & theErrors)
460 //MESSAGE("SMESH_Gen::CheckAlgoState");
463 bool hasAlgo = false;
465 SMESH_subMesh* sm = theMesh.GetSubMesh(theShape);
466 const SMESHDS_Mesh* meshDS = theMesh.GetMeshDS();
467 TopoDS_Shape mainShape = meshDS->ShapeToMesh();
473 const SMESH_Algo* aGlobAlgoArr[] = {0,0,0,0};
475 const list<const SMESHDS_Hypothesis*>& listHyp = meshDS->GetHypothesis( mainShape );
476 list<const SMESHDS_Hypothesis*>::const_iterator it=listHyp.begin();
477 for ( ; it != listHyp.end(); it++)
479 const SMESHDS_Hypothesis * aHyp = *it;
480 if (aHyp->GetType() == SMESHDS_Hypothesis::PARAM_ALGO)
483 const SMESH_Algo* algo = dynamic_cast<const SMESH_Algo*> (aHyp);
486 int dim = algo->GetDim();
487 aGlobAlgoArr[ dim ] = algo;
492 // --------------------------------------------------------
493 // info on algos that will be ignored because of ones that
494 // don't NeedDescretBoundary() attached to super-shapes,
495 // check that a conform mesh will be produced
496 // --------------------------------------------------------
499 // find a global algo possibly hidding sub-algos
501 const SMESH_Algo* aGlobIgnoAlgo = 0;
502 for (dim = 3; dim > 0; dim--)
504 if (aGlobAlgoArr[ dim ] &&
505 !aGlobAlgoArr[ dim ]->NeedDescretBoundary())
507 aGlobIgnoAlgo = aGlobAlgoArr[ dim ];
512 const map<int, SMESH_subMesh*>& smMap = sm->DependsOn();
513 map<int, SMESH_subMesh*>::const_reverse_iterator revItSub = smMap.rbegin();
514 map<int, SMESH_subMesh*> aCheckedMap;
515 bool checkConform = ( !theMesh.IsNotConformAllowed() );
517 SMESH_subMesh* smToCheck = sm;
519 // loop on theShape and its sub-shapes
522 if ( smToCheck->GetSubShape().ShapeType() == TopAbs_VERTEX)
525 if ( aCheckedMap.find( aKey ) == aCheckedMap.end() )
526 if (!checkConformIgnoredAlgos (theMesh, smToCheck, aGlobIgnoAlgo,
527 0, checkConform, aCheckedMap, theErrors))
530 if ( smToCheck->GetAlgoState() != SMESH_subMesh::NO_ALGO )
534 if (revItSub != smMap.rend())
536 aKey = (*revItSub).first;
537 smToCheck = (*revItSub).second;
547 // ----------------------------------------------------------------
548 // info on missing hypothesis and find out if all needed algos are
550 // ----------------------------------------------------------------
552 //MESSAGE( "---info on missing hypothesis and find out if all needed algos are");
554 // find max dim of global algo
556 for (dim = 3; dim > 0; dim--)
558 if (aGlobAlgoArr[ dim ])
566 revItSub = smMap.rbegin();
567 bool checkNoAlgo = (bool) aTopAlgoDim;
568 bool globalChecked[] = { false, false, false, false };
570 // loop on theShape and its sub-shapes
573 if ( smToCheck->GetSubShape().ShapeType() == TopAbs_VERTEX)
576 if ( aCheckedMap.find( aKey ) == aCheckedMap.end() )
577 if (!checkMissing (this, theMesh, smToCheck, aTopAlgoDim,
578 globalChecked, checkNoAlgo, aCheckedMap, theErrors))
581 if (smToCheck->GetAlgoState() == SMESH_subMesh::NO_ALGO )
586 if (revItSub != smMap.rend())
588 aKey = (*revItSub).first;
589 smToCheck = (*revItSub).second;
598 INFOS( "None algorithm attached" );
599 theErrors.push_back( TAlgoStateError() );
600 theErrors.back().Set( MISSING_ALGO, 1, true );
606 //=======================================================================
607 //function : IsGlobalHypothesis
608 //purpose : check if theAlgo is attached to the main shape
609 //=======================================================================
611 bool SMESH_Gen::IsGlobalHypothesis(const SMESH_Hypothesis* theHyp, SMESH_Mesh& aMesh)
613 SMESH_HypoFilter filter( SMESH_HypoFilter::Is( theHyp ));
614 return aMesh.GetHypothesis( aMesh.GetMeshDS()->ShapeToMesh(), filter, false );
617 //=============================================================================
621 //=============================================================================
623 SMESH_Algo *SMESH_Gen::GetAlgo(SMESH_Mesh & aMesh, const TopoDS_Shape & aShape)
625 // MESSAGE("SMESH_Gen::GetAlgo");
627 SMESH_HypoFilter filter( SMESH_HypoFilter::IsAlgo() );
628 filter.And( filter.IsApplicableTo( aShape ));
630 list <const SMESHDS_Hypothesis * > algoList;
631 aMesh.GetHypotheses( aShape, filter, algoList, true );
633 if ( algoList.empty() )
636 // Now it is checked in SMESH_Mesh::GetHypotheses()
637 // if (algoList.size() > 1 ) { // check if there is one algo several times
638 // list <const SMESHDS_Hypothesis * >::iterator algo = algoList.begin();
639 // for ( ; algo != algoList.end(); ++algo )
640 // if ( (*algo) != algoList.front() &&
641 // (*algo)->GetName() != algoList.front()->GetName() )
645 return const_cast<SMESH_Algo*> ( static_cast<const SMESH_Algo* >( algoList.front() ));
648 //=============================================================================
652 //=============================================================================
654 StudyContextStruct *SMESH_Gen::GetStudyContext(int studyId)
656 // Get studyContext, create it if it does'nt exist, with a SMESHDS_Document
658 if (_mapStudyContext.find(studyId) == _mapStudyContext.end())
660 _mapStudyContext[studyId] = new StudyContextStruct;
661 _mapStudyContext[studyId]->myDocument = new SMESHDS_Document(studyId);
663 StudyContextStruct *myStudyContext = _mapStudyContext[studyId];
664 // ASSERT(_mapStudyContext.find(studyId) != _mapStudyContext.end());
665 return myStudyContext;
668 //=============================================================================
672 //=============================================================================
674 void SMESH_Gen::Save(int studyId, const char *aUrlOfFile)
678 //=============================================================================
682 //=============================================================================
684 void SMESH_Gen::Load(int studyId, const char *aUrlOfFile)
688 //=============================================================================
692 //=============================================================================
694 void SMESH_Gen::Close(int studyId)
698 //=============================================================================
702 //=============================================================================
704 int SMESH_Gen::GetShapeDim(const TopAbs_ShapeEnum & aShapeType)
706 int shapeDim = -1; // Shape dimension: 0D, 1D, 2D, 3D
707 int type = aShapeType;//.ShapeType();
710 case TopAbs_COMPOUND:
711 case TopAbs_COMPSOLID:
718 // case TopAbs_SHELL:
739 //=============================================================================
743 //=============================================================================
745 int SMESH_Gen::GetANewId()
747 //MESSAGE("SMESH_Gen::GetANewId");