1 // Copyright (C) 2007-2010 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.
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 //=============================================================================
24 // File : NETGENPlugin_NETGEN_3D.cxx
25 // Moved here from SMESH_NETGEN_3D.cxx
26 // Created : lundi 27 Janvier 2003
27 // Author : Nadir BOUHAMOU (CEA)
29 //=============================================================================
31 #include "NETGENPlugin_NETGEN_3D.hxx"
33 #include "NETGENPlugin_Hypothesis.hxx"
35 #include "SMDS_MeshElement.hxx"
36 #include "SMDS_MeshNode.hxx"
37 #include "SMESHDS_Mesh.hxx"
38 #include "SMESH_Comment.hxx"
39 #include "SMESH_ControlsDef.hxx"
40 #include "SMESH_Gen.hxx"
41 #include "SMESH_Mesh.hxx"
42 #include "SMESH_MesherHelper.hxx"
43 #include "SMESH_MeshEditor.hxx"
44 #include "StdMeshers_QuadToTriaAdaptor.hxx"
45 #include "StdMeshers_MaxElementVolume.hxx"
47 #include <BRepGProp.hxx>
48 #include <BRep_Tool.hxx>
49 #include <GProp_GProps.hxx>
51 #include <TopExp_Explorer.hxx>
52 #include <TopTools_ListIteratorOfListOfShape.hxx>
55 #include <Standard_Failure.hxx>
56 #include <Standard_ErrorHandler.hxx>
58 #include "utilities.h"
69 #include <occgeom.hpp>
74 extern int OCCGenerateMesh (OCCGeometry&, Mesh*&, int, int, char*);
75 extern MeshingParameters mparam;
76 extern volatile multithreadt multithread;
78 using namespace nglib;
81 //=============================================================================
85 //=============================================================================
87 NETGENPlugin_NETGEN_3D::NETGENPlugin_NETGEN_3D(int hypId, int studyId,
89 : SMESH_3D_Algo(hypId, studyId, gen)
91 MESSAGE("NETGENPlugin_NETGEN_3D::NETGENPlugin_NETGEN_3D");
93 _shapeType = (1 << TopAbs_SHELL) | (1 << TopAbs_SOLID);// 1 bit /shape type
94 _compatibleHypothesis.push_back("MaxElementVolume");
95 _compatibleHypothesis.push_back("NETGEN_Parameters");
96 _requireShape = false; // can work without shape
98 _maxElementVolume = 0.;
100 _hypMaxElementVolume = NULL;
101 _hypParameters = NULL;
104 //=============================================================================
108 //=============================================================================
110 NETGENPlugin_NETGEN_3D::~NETGENPlugin_NETGEN_3D()
112 MESSAGE("NETGENPlugin_NETGEN_3D::~NETGENPlugin_NETGEN_3D");
115 //=============================================================================
119 //=============================================================================
121 bool NETGENPlugin_NETGEN_3D::CheckHypothesis (SMESH_Mesh& aMesh,
122 const TopoDS_Shape& aShape,
123 Hypothesis_Status& aStatus)
125 MESSAGE("NETGENPlugin_NETGEN_3D::CheckHypothesis");
127 _hypMaxElementVolume = NULL;
128 _hypParameters = NULL;
129 _maxElementVolume = DBL_MAX;
131 list<const SMESHDS_Hypothesis*>::const_iterator itl;
132 const SMESHDS_Hypothesis* theHyp;
134 const list<const SMESHDS_Hypothesis*>& hyps = GetUsedHypothesis(aMesh, aShape);
135 int nbHyp = hyps.size();
138 aStatus = SMESH_Hypothesis::HYP_OK;
139 return true; // can work with no hypothesis
143 theHyp = (*itl); // use only the first hypothesis
145 string hypName = theHyp->GetName();
147 if (hypName == "MaxElementVolume")
149 _hypMaxElementVolume = static_cast<const StdMeshers_MaxElementVolume*> (theHyp);
150 _maxElementVolume = _hypMaxElementVolume->GetMaxVolume();
151 aStatus = SMESH_Hypothesis::HYP_OK;
153 else if (hypName == "NETGEN_Parameters")
155 _hypParameters = static_cast<const NETGENPlugin_Hypothesis *> (theHyp);
156 aStatus = SMESH_Hypothesis::HYP_OK;
159 aStatus = SMESH_Hypothesis::HYP_INCOMPATIBLE;
161 return ( aStatus == SMESH_Hypothesis::HYP_OK );
164 //=============================================================================
166 *Here we are going to use the NETGEN mesher
168 //=============================================================================
170 bool NETGENPlugin_NETGEN_3D::Compute(SMESH_Mesh& aMesh,
171 const TopoDS_Shape& aShape)
173 MESSAGE("NETGENPlugin_NETGEN_3D::Compute with maxElmentsize = " << _maxElementVolume);
175 SMESHDS_Mesh* meshDS = aMesh.GetMeshDS();
177 SMESH_MesherHelper helper(aMesh);
178 bool _quadraticMesh = helper.IsQuadraticSubMesh(aShape);
179 helper.SetElementsOnShape( true );
181 int Netgen_NbOfNodes = 0;
183 double Netgen_point[3];
184 int Netgen_triangle[3];
186 NETGENPlugin_NetgenLibWrapper ngLib;
187 Ng_Mesh * Netgen_mesh = ngLib._ngMesh;
189 // vector of nodes in which node index == netgen ID
190 vector< const SMDS_MeshNode* > nodeVec;
192 const int invalid_ID = -1;
194 SMESH::Controls::Area areaControl;
195 SMESH::Controls::TSequenceOfXYZ nodesCoords;
197 // maps nodes to ng ID
198 typedef map< const SMDS_MeshNode*, int, TIDCompare > TNodeToIDMap;
199 typedef TNodeToIDMap::value_type TN2ID;
200 TNodeToIDMap nodeToNetgenID;
202 // find internal shapes
203 NETGENPlugin_Internals internals( aMesh, aShape, /*is3D=*/true );
205 // ---------------------------------
206 // Feed the Netgen with surface mesh
207 // ---------------------------------
209 TopAbs_ShapeEnum mainType = aMesh.GetShapeToMesh().ShapeType();
210 bool checkReverse = ( mainType == TopAbs_COMPOUND || mainType == TopAbs_COMPSOLID );
212 StdMeshers_QuadToTriaAdaptor Adaptor;
213 if ( aMesh.NbQuadrangles() > 0 )
214 Adaptor.Compute(aMesh,aShape);
216 for ( TopExp_Explorer exFa( aShape, TopAbs_FACE ); exFa.More(); exFa.Next())
218 const TopoDS_Shape& aShapeFace = exFa.Current();
219 int faceID = meshDS->ShapeToIndex( aShapeFace );
220 bool isInternalFace = internals.isInternalShape( faceID );
222 if ( checkReverse && !isInternalFace &&
223 helper.NbAncestors(aShapeFace, aMesh, aShape.ShapeType()) > 1 )
224 // IsReversedSubMesh() can work wrong on strongly curved faces,
225 // so we use it as less as possible
226 isRev = SMESH_Algo::IsReversedSubMesh( TopoDS::Face(aShapeFace), meshDS );
228 const SMESHDS_SubMesh * aSubMeshDSFace = meshDS->MeshElements( aShapeFace );
229 if ( !aSubMeshDSFace ) continue;
230 SMDS_ElemIteratorPtr iteratorElem = aSubMeshDSFace->GetElements();
231 while ( iteratorElem->more() ) // loop on elements on a geom face
234 const SMDS_MeshElement* elem = iteratorElem->next();
236 return error( COMPERR_BAD_INPUT_MESH, "Null element encounters");
237 vector< const SMDS_MeshElement* > trias;
238 bool isTraingle = ( elem->NbNodes() == ( elem->IsQuadratic() ? 6 : 3 ));
241 // use adaptor to convert quadrangle face into triangles
242 const list<const SMDS_MeshFace*>* faces = Adaptor.GetTriangles(elem);
244 return error( COMPERR_BAD_INPUT_MESH,
245 SMESH_Comment("No triangles in adaptor for element ")<<elem->GetID());
246 trias.assign( faces->begin(), faces->end() );
250 trias.push_back( elem );
252 // Add nodes of triangles and triangles them-selves to netgen mesh
254 for ( int i = 0; i < trias.size(); ++i )
256 // add three nodes of triangle
257 bool hasDegen = false;
258 for ( int iN = 0; iN < 3; ++iN )
260 const SMDS_MeshNode* node = trias[i]->GetNode( iN );
261 int shapeID = node->getshapeId();
262 if ( node->GetPosition()->GetTypeOfPosition() == SMDS_TOP_EDGE &&
263 helper.IsDegenShape( shapeID ))
265 // ignore all nodes on degeneraged edge and use node on its vertex instead
266 TopoDS_Shape vertex = TopoDS_Iterator( meshDS->IndexToShape( shapeID )).Value();
267 node = SMESH_Algo::VertexNode( TopoDS::Vertex( vertex ), meshDS );
270 int& ngID = nodeToNetgenID.insert(TN2ID( node, invalid_ID )).first->second;
271 if ( ngID == invalid_ID )
273 ngID = ++Netgen_NbOfNodes;
274 Netgen_point [ 0 ] = node->X();
275 Netgen_point [ 1 ] = node->Y();
276 Netgen_point [ 2 ] = node->Z();
277 Ng_AddPoint(Netgen_mesh, Netgen_point);
279 Netgen_triangle[ isRev ? 2-iN : iN ] = ngID;
282 if ( hasDegen && (Netgen_triangle[0] == Netgen_triangle[1] ||
283 Netgen_triangle[0] == Netgen_triangle[2] ||
284 Netgen_triangle[2] == Netgen_triangle[1] ))
287 Ng_AddSurfaceElement(Netgen_mesh, NG_TRIG, Netgen_triangle);
289 if ( isInternalFace && isTraingle )
291 swap( Netgen_triangle[1], Netgen_triangle[2] );
292 Ng_AddSurfaceElement(Netgen_mesh, NG_TRIG, Netgen_triangle);
296 // check if a trainge is degenerated
297 areaControl.GetPoints( elem, nodesCoords );
298 double area = areaControl.GetValue( nodesCoords );
299 if ( area <= DBL_MIN ) {
300 MESSAGE( "Warning: Degenerated " << elem );
303 } // loop on elements on a face
304 } // loop on faces of a SOLID or SHELL
306 // insert old nodes into nodeVec
307 nodeVec.resize( nodeToNetgenID.size() + 1, 0 );
308 TNodeToIDMap::iterator n_id = nodeToNetgenID.begin();
309 for ( ; n_id != nodeToNetgenID.end(); ++n_id )
310 nodeVec[ n_id->second ] = n_id->first;
311 nodeToNetgenID.clear();
313 if ( internals.hasInternalVertexInSolid() )
315 netgen::OCCGeometry occgeo;
316 NETGENPlugin_Mesher::addIntVerticesInSolids( occgeo,
317 (netgen::Mesh&) *Netgen_mesh,
323 // -------------------------
324 // Generate the volume mesh
325 // -------------------------
327 return compute( aMesh, helper, nodeVec, Netgen_mesh);
330 //================================================================================
332 * \brief set parameters and generate the volume mesh
334 //================================================================================
336 bool NETGENPlugin_NETGEN_3D::compute(SMESH_Mesh& aMesh,
337 SMESH_MesherHelper& helper,
338 vector< const SMDS_MeshNode* >& nodeVec,
339 Ng_Mesh * Netgen_mesh)
341 netgen::Mesh* ngMesh = (netgen::Mesh*)Netgen_mesh;
342 int Netgen_NbOfNodes = Ng_GetNP(Netgen_mesh);
345 int startWith = netgen::MESHCONST_MESHVOLUME;
346 int endWith = netgen::MESHCONST_OPTVOLUME;
349 NETGENPlugin_Mesher aMesher( &aMesh, helper.GetSubShape(), /*isVolume=*/true );
350 netgen::OCCGeometry occgeo;
352 if ( _hypParameters )
354 aMesher.SetParameters( _hypParameters );
355 if ( !_hypParameters->GetOptimize() )
356 endWith = netgen::MESHCONST_MESHVOLUME;
358 else if ( _hypMaxElementVolume )
360 netgen::mparam.maxh = pow( 72, 1/6. ) * pow( _maxElementVolume, 1/3. );
362 else if ( aMesh.HasShapeToMesh() )
364 aMesher.PrepareOCCgeometry( occgeo, helper.GetSubShape(), aMesh );
365 netgen::mparam.maxh = occgeo.GetBoundingBox().Diam()/2;
369 netgen::Point3d pmin, pmax;
370 ngMesh->GetBox (pmin, pmax);
371 netgen::mparam.maxh = Dist(pmin, pmax)/2;
376 #if (OCC_VERSION_MAJOR << 16 | OCC_VERSION_MINOR << 8 | OCC_VERSION_MAINTENANCE) > 0x060100
379 ngMesh->CalcLocalH();
380 err = netgen::OCCGenerateMesh(occgeo, ngMesh, startWith, endWith, optstr);
382 error(SMESH_Comment("Error in netgen::OCCGenerateMesh() at ") << netgen::multithread.task);
384 catch (Standard_Failure& ex)
386 SMESH_Comment str("Exception in netgen::OCCGenerateMesh()");
387 str << " at " << netgen::multithread.task
388 << ": " << ex.DynamicType()->Name();
389 if ( ex.GetMessageString() && strlen( ex.GetMessageString() ))
390 str << ": " << ex.GetMessageString();
395 SMESH_Comment str("Exception in netgen::OCCGenerateMesh()");
396 str << " at " << netgen::multithread.task;
400 int Netgen_NbOfNodesNew = Ng_GetNP(Netgen_mesh);
401 int Netgen_NbOfTetra = Ng_GetNE(Netgen_mesh);
403 MESSAGE("End of Volume Mesh Generation. err=" << err <<
404 ", nb new nodes: " << Netgen_NbOfNodesNew - Netgen_NbOfNodes <<
405 ", nb tetra: " << Netgen_NbOfTetra);
407 // -------------------------------------------------------------------
408 // Feed back the SMESHDS with the generated Nodes and Volume Elements
409 // -------------------------------------------------------------------
413 SMESH_ComputeErrorPtr ce = NETGENPlugin_Mesher::readErrors(nodeVec);
414 if ( ce && !ce->myBadElements.empty() )
418 bool isOK = ( /*status == NG_OK &&*/ Netgen_NbOfTetra > 0 );// get whatever built
421 double Netgen_point[3];
422 int Netgen_tetrahedron[4];
424 // create and insert new nodes into nodeVec
425 nodeVec.resize( Netgen_NbOfNodesNew + 1, 0 );
426 int nodeIndex = Netgen_NbOfNodes + 1;
427 for ( ; nodeIndex <= Netgen_NbOfNodesNew; ++nodeIndex )
429 Ng_GetPoint( Netgen_mesh, nodeIndex, Netgen_point );
430 nodeVec.at(nodeIndex) = helper.AddNode(Netgen_point[0], Netgen_point[1], Netgen_point[2]);
433 // create tetrahedrons
434 for ( int elemIndex = 1; elemIndex <= Netgen_NbOfTetra; ++elemIndex )
436 Ng_GetVolumeElement(Netgen_mesh, elemIndex, Netgen_tetrahedron);
439 helper.AddVolume (nodeVec.at( Netgen_tetrahedron[0] ),
440 nodeVec.at( Netgen_tetrahedron[1] ),
441 nodeVec.at( Netgen_tetrahedron[2] ),
442 nodeVec.at( Netgen_tetrahedron[3] ));
453 //================================================================================
455 * \brief Compute tetrahedral mesh from 2D mesh without geometry
457 //================================================================================
459 bool NETGENPlugin_NETGEN_3D::Compute(SMESH_Mesh& aMesh,
460 SMESH_MesherHelper* aHelper)
462 MESSAGE("NETGENPlugin_NETGEN_3D::Compute with maxElmentsize = " << _maxElementVolume);
463 const int invalid_ID = -1;
464 bool _quadraticMesh = false;
465 typedef map< const SMDS_MeshNode*, int, TIDCompare > TNodeToIDMap;
466 TNodeToIDMap nodeToNetgenID;
467 list< const SMDS_MeshElement* > triangles;
468 SMESHDS_Mesh* MeshDS = aHelper->GetMeshDS();
470 SMESH_MesherHelper::MType MeshType = aHelper->IsQuadraticMesh();
472 if(MeshType == SMESH_MesherHelper::COMP)
473 return error( COMPERR_BAD_INPUT_MESH,
474 SMESH_Comment("Mesh with linear and quadratic elements given."));
475 else if (MeshType == SMESH_MesherHelper::QUADRATIC)
476 _quadraticMesh = true;
478 StdMeshers_QuadToTriaAdaptor Adaptor;
479 if ( aMesh.NbQuadrangles() > 0 )
480 Adaptor.Compute(aMesh);
482 SMDS_FaceIteratorPtr fIt = MeshDS->facesIterator(/*idInceasingOrder=*/true);
486 const SMDS_MeshElement* elem = fIt->next();
488 return error( COMPERR_BAD_INPUT_MESH, "Null element encounters");
490 vector< const SMDS_MeshElement* > trias;
491 bool isTraingle = ( elem->NbCornerNodes() == 3 );
494 const list<const SMDS_MeshFace*>* faces = Adaptor.GetTriangles(elem);
496 continue; // Issue 0020682. There already can be 3d mesh
497 trias.assign( faces->begin(), faces->end() );
500 trias.push_back( elem );
502 for ( int i = 0; i < trias.size(); ++i )
504 triangles.push_back( trias[i] );
505 for ( int iN = 0; iN < 3; ++iN )
507 const SMDS_MeshNode* node = trias[i]->GetNode( iN );
508 // put elem nodes to nodeToNetgenID map
509 nodeToNetgenID.insert( make_pair( node, invalid_ID ));
514 // ---------------------------------
515 // Feed the Netgen with surface mesh
516 // ---------------------------------
518 int Netgen_NbOfNodes = 0;
519 double Netgen_point[3];
520 int Netgen_triangle[3];
521 int Netgen_tetrahedron[4];
523 NETGENPlugin_NetgenLibWrapper ngLib;
524 Ng_Mesh * Netgen_mesh = ngLib._ngMesh;
526 // set nodes and remember thier netgen IDs
528 TNodeToIDMap::iterator n_id = nodeToNetgenID.begin();
529 for ( ; n_id != nodeToNetgenID.end(); ++n_id )
531 const SMDS_MeshNode* node = n_id->first;
533 Netgen_point [ 0 ] = node->X();
534 Netgen_point [ 1 ] = node->Y();
535 Netgen_point [ 2 ] = node->Z();
536 Ng_AddPoint(Netgen_mesh, Netgen_point);
537 n_id->second = ++Netgen_NbOfNodes; // set netgen ID
541 list< const SMDS_MeshElement* >::iterator tria = triangles.begin();
542 for ( ; tria != triangles.end(); ++tria)
545 SMDS_ElemIteratorPtr triangleNodesIt = (*tria)->nodesIterator();
546 while ( triangleNodesIt->more() ) {
547 const SMDS_MeshNode * node =
548 static_cast<const SMDS_MeshNode *>(triangleNodesIt->next());
549 if(aHelper->IsMedium(node))
551 Netgen_triangle[ i ] = nodeToNetgenID[ node ];
554 Ng_AddSurfaceElement(Netgen_mesh, NG_TRIG, Netgen_triangle);
557 // vector of nodes in which node index == netgen ID
558 vector< const SMDS_MeshNode* > nodeVec ( nodeToNetgenID.size() + 1 );
559 // insert old nodes into nodeVec
560 for ( n_id = nodeToNetgenID.begin(); n_id != nodeToNetgenID.end(); ++n_id )
561 nodeVec.at( n_id->second ) = n_id->first;
562 nodeToNetgenID.clear();
564 // -------------------------
565 // Generate the volume mesh
566 // -------------------------
568 return compute( aMesh, *aHelper, nodeVec, Netgen_mesh);
571 //=============================================================================
575 //=============================================================================
577 bool NETGENPlugin_NETGEN_3D::Evaluate(SMESH_Mesh& aMesh,
578 const TopoDS_Shape& aShape,
579 MapShapeNbElems& aResMap)
581 int nbtri = 0, nbqua = 0;
582 double fullArea = 0.0;
583 for (TopExp_Explorer expF(aShape, TopAbs_FACE); expF.More(); expF.Next()) {
584 TopoDS_Face F = TopoDS::Face( expF.Current() );
585 SMESH_subMesh *sm = aMesh.GetSubMesh(F);
586 MapShapeNbElemsItr anIt = aResMap.find(sm);
587 if( anIt==aResMap.end() ) {
588 SMESH_ComputeErrorPtr& smError = sm->GetComputeError();
589 smError.reset( new SMESH_ComputeError(COMPERR_ALGO_FAILED,"Submesh can not be evaluated",this));
592 std::vector<int> aVec = (*anIt).second;
593 nbtri += Max(aVec[SMDSEntity_Triangle],aVec[SMDSEntity_Quad_Triangle]);
594 nbqua += Max(aVec[SMDSEntity_Quadrangle],aVec[SMDSEntity_Quad_Quadrangle]);
596 BRepGProp::SurfaceProperties(F,G);
597 double anArea = G.Mass();
601 // collect info from edges
602 int nb0d_e = 0, nb1d_e = 0;
603 bool IsQuadratic = false;
605 TopTools_MapOfShape tmpMap;
606 for (TopExp_Explorer expF(aShape, TopAbs_EDGE); expF.More(); expF.Next()) {
607 TopoDS_Edge E = TopoDS::Edge(expF.Current());
608 if( tmpMap.Contains(E) )
611 SMESH_subMesh *aSubMesh = aMesh.GetSubMesh(expF.Current());
612 MapShapeNbElemsItr anIt = aResMap.find(aSubMesh);
613 if( anIt==aResMap.end() ) {
614 SMESH_ComputeErrorPtr& smError = aSubMesh->GetComputeError();
615 smError.reset( new SMESH_ComputeError(COMPERR_ALGO_FAILED,
616 "Submesh can not be evaluated",this));
619 std::vector<int> aVec = (*anIt).second;
620 nb0d_e += aVec[SMDSEntity_Node];
621 nb1d_e += Max(aVec[SMDSEntity_Edge],aVec[SMDSEntity_Quad_Edge]);
623 IsQuadratic = (aVec[SMDSEntity_Quad_Edge] > aVec[SMDSEntity_Edge]);
629 double ELen_face = sqrt(2.* ( fullArea/(nbtri+nbqua*2) ) / sqrt(3.0) );
630 double ELen_vol = pow( 72, 1/6. ) * pow( _maxElementVolume, 1/3. );
631 double ELen = Min(ELen_vol,ELen_face*2);
634 BRepGProp::VolumeProperties(aShape,G);
635 double aVolume = G.Mass();
636 double tetrVol = 0.1179*ELen*ELen*ELen;
637 double CoeffQuality = 0.9;
638 int nbVols = int( aVolume/tetrVol/CoeffQuality );
639 int nb1d_f = (nbtri*3 + nbqua*4 - nb1d_e) / 2;
640 int nb1d_in = (nbVols*6 - nb1d_e - nb1d_f ) / 5;
641 std::vector<int> aVec(SMDSEntity_Last);
642 for(int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aVec[i]=0;
644 aVec[SMDSEntity_Node] = nb1d_in/6 + 1 + nb1d_in;
645 aVec[SMDSEntity_Quad_Tetra] = nbVols - nbqua*2;
646 aVec[SMDSEntity_Quad_Pyramid] = nbqua;
649 aVec[SMDSEntity_Node] = nb1d_in/6 + 1;
650 aVec[SMDSEntity_Tetra] = nbVols - nbqua*2;
651 aVec[SMDSEntity_Pyramid] = nbqua;
653 SMESH_subMesh *sm = aMesh.GetSubMesh(aShape);
654 aResMap.insert(std::make_pair(sm,aVec));