1 // Copyright (C) 2007-2014 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 // File : StdMeshers_Prism_3D.cxx
25 // Created : Fri Oct 20 11:37:07 2006
26 // Author : Edward AGAPOV (eap)
28 #include "StdMeshers_Prism_3D.hxx"
30 #include "SMDS_EdgePosition.hxx"
31 #include "SMDS_VolumeOfNodes.hxx"
32 #include "SMDS_VolumeTool.hxx"
33 #include "SMESH_Comment.hxx"
34 #include "SMESH_Gen.hxx"
35 #include "SMESH_HypoFilter.hxx"
36 #include "SMESH_MesherHelper.hxx"
37 #include "StdMeshers_FaceSide.hxx"
38 #include "StdMeshers_ProjectionSource1D.hxx"
39 #include "StdMeshers_ProjectionSource2D.hxx"
40 #include "StdMeshers_ProjectionUtils.hxx"
41 #include "StdMeshers_Projection_1D.hxx"
42 #include "StdMeshers_Projection_1D2D.hxx"
43 #include "StdMeshers_Quadrangle_2D.hxx"
45 #include "utilities.h"
47 #include <BRepAdaptor_CompCurve.hxx>
48 #include <BRep_Tool.hxx>
49 #include <Bnd_B3d.hxx>
50 #include <Geom2dAdaptor_Curve.hxx>
51 #include <Geom2d_Line.hxx>
52 #include <Geom_Curve.hxx>
54 #include <TopExp_Explorer.hxx>
55 #include <TopTools_ListIteratorOfListOfShape.hxx>
56 #include <TopTools_ListOfShape.hxx>
57 #include <TopTools_MapOfShape.hxx>
58 #include <TopTools_SequenceOfShape.hxx>
67 #define RETURN_BAD_RESULT(msg) { MESSAGE(")-: Error: " << msg); return false; }
68 #define gpXYZ(n) gp_XYZ(n->X(),n->Y(),n->Z())
69 #define SHOWYXZ(msg, xyz) // {\
71 // cout << msg << " ("<< p.X() << "; " <<p.Y() << "; " <<p.Z() << ") " <<endl;\
74 #define DBGOUT(msg) //cout << msg << endl;
79 namespace TAssocTool = StdMeshers_ProjectionUtils;
81 typedef SMESH_Comment TCom;
83 enum { ID_BOT_FACE = SMESH_Block::ID_Fxy0,
84 ID_TOP_FACE = SMESH_Block::ID_Fxy1,
85 BOTTOM_EDGE = 0, TOP_EDGE, V0_EDGE, V1_EDGE, // edge IDs in face
86 NB_WALL_FACES = 4 }; //
90 //=======================================================================
92 * \brief Quadrangle algorithm
94 struct TQuadrangleAlgo : public StdMeshers_Quadrangle_2D
96 TQuadrangleAlgo(int studyId, SMESH_Gen* gen)
97 : StdMeshers_Quadrangle_2D( gen->GetANewId(), studyId, gen)
100 static StdMeshers_Quadrangle_2D* instance( SMESH_Algo* fatherAlgo,
101 SMESH_MesherHelper* helper=0)
103 static TQuadrangleAlgo* algo = new TQuadrangleAlgo( fatherAlgo->GetStudyId(),
104 fatherAlgo->GetGen() );
107 algo->myProxyMesh->GetMesh() != helper->GetMesh() )
108 algo->myProxyMesh.reset( new SMESH_ProxyMesh( *helper->GetMesh() ));
110 algo->myQuadList.clear();
113 algo->_quadraticMesh = helper->GetIsQuadratic();
118 //=======================================================================
120 * \brief Algorithm projecting 1D mesh
122 struct TProjction1dAlgo : public StdMeshers_Projection_1D
124 StdMeshers_ProjectionSource1D myHyp;
126 TProjction1dAlgo(int studyId, SMESH_Gen* gen)
127 : StdMeshers_Projection_1D( gen->GetANewId(), studyId, gen),
128 myHyp( gen->GetANewId(), studyId, gen)
130 StdMeshers_Projection_1D::_sourceHypo = & myHyp;
132 static TProjction1dAlgo* instance( SMESH_Algo* fatherAlgo )
134 static TProjction1dAlgo* algo = new TProjction1dAlgo( fatherAlgo->GetStudyId(),
135 fatherAlgo->GetGen() );
139 //=======================================================================
141 * \brief Algorithm projecting 2D mesh
143 struct TProjction2dAlgo : public StdMeshers_Projection_1D2D
145 StdMeshers_ProjectionSource2D myHyp;
147 TProjction2dAlgo(int studyId, SMESH_Gen* gen)
148 : StdMeshers_Projection_1D2D( gen->GetANewId(), studyId, gen),
149 myHyp( gen->GetANewId(), studyId, gen)
151 StdMeshers_Projection_2D::_sourceHypo = & myHyp;
153 static TProjction2dAlgo* instance( SMESH_Algo* fatherAlgo )
155 static TProjction2dAlgo* algo = new TProjction2dAlgo( fatherAlgo->GetStudyId(),
156 fatherAlgo->GetGen() );
160 //=======================================================================
162 * \brief Returns already computed EDGEs
164 void getPrecomputedEdges( SMESH_MesherHelper& theHelper,
165 const TopoDS_Shape& theShape,
166 vector< TopoDS_Edge >& theEdges)
170 SMESHDS_Mesh* meshDS = theHelper.GetMeshDS();
173 TopTools_IndexedMapOfShape edges;
174 TopExp::MapShapes( theShape, TopAbs_EDGE, edges );
175 for ( int iE = 1; iE <= edges.Extent(); ++iE )
177 const TopoDS_Shape edge = edges( iE );
178 if (( ! ( sm = meshDS->MeshElements( edge ))) ||
179 ( sm->NbElements() == 0 ))
182 // there must not be FACEs meshed with triangles and sharing a computed EDGE
183 // as the precomputed EDGEs are used for propagation other to 'vertical' EDGEs
184 bool faceFound = false;
185 PShapeIteratorPtr faceIt =
186 theHelper.GetAncestors( edge, *theHelper.GetMesh(), TopAbs_FACE );
187 while ( const TopoDS_Shape* face = faceIt->next() )
189 if (( sm = meshDS->MeshElements( *face )) &&
190 ( sm->NbElements() > 0 ) &&
191 ( !theHelper.IsSameElemGeometry( sm, SMDSGeom_QUADRANGLE ) ))
197 theEdges.push_back( TopoDS::Edge( edge ));
201 //================================================================================
203 * \brief Make \a botE be the BOTTOM_SIDE of \a quad.
204 * Return false if the BOTTOM_SIDE is composite
206 //================================================================================
208 bool setBottomEdge( const TopoDS_Edge& botE,
209 FaceQuadStruct::Ptr& quad,
210 const TopoDS_Shape& face)
212 quad->side[ QUAD_TOP_SIDE ].grid->Reverse();
213 quad->side[ QUAD_LEFT_SIDE ].grid->Reverse();
215 bool isComposite = false;
216 for ( size_t i = 0; i < quad->side.size(); ++i )
218 StdMeshers_FaceSidePtr quadSide = quad->side[i];
219 for ( int iE = 0; iE < quadSide->NbEdges(); ++iE )
220 if ( botE.IsSame( quadSide->Edge( iE )))
222 if ( quadSide->NbEdges() > 1 )
223 isComposite = true; //return false;
225 i = quad->side.size(); // to quit from the outer loop
229 if ( edgeIndex != QUAD_BOTTOM_SIDE )
230 quad->shift( quad->side.size() - edgeIndex, /*keepUnitOri=*/false );
232 quad->face = TopoDS::Face( face );
237 //================================================================================
239 * \brief Return iterator pointing to node column for the given parameter
240 * \param columnsMap - node column map
241 * \param parameter - parameter
242 * \retval TParam2ColumnMap::iterator - result
244 * it returns closest left column
246 //================================================================================
248 TParam2ColumnIt getColumn( const TParam2ColumnMap* columnsMap,
249 const double parameter )
251 TParam2ColumnIt u_col = columnsMap->upper_bound( parameter );
252 if ( u_col != columnsMap->begin() )
254 return u_col; // return left column
257 //================================================================================
259 * \brief Return nodes around given parameter and a ratio
260 * \param column - node column
261 * \param param - parameter
262 * \param node1 - lower node
263 * \param node2 - upper node
264 * \retval double - ratio
266 //================================================================================
268 double getRAndNodes( const TNodeColumn* column,
270 const SMDS_MeshNode* & node1,
271 const SMDS_MeshNode* & node2)
273 if ( param >= 1.0 || column->size() == 1) {
274 node1 = node2 = column->back();
278 int i = int( param * ( column->size() - 1 ));
279 double u0 = double( i )/ double( column->size() - 1 );
280 double r = ( param - u0 ) * ( column->size() - 1 );
282 node1 = (*column)[ i ];
283 node2 = (*column)[ i + 1];
287 //================================================================================
289 * \brief Compute boundary parameters of face parts
290 * \param nbParts - nb of parts to split columns into
291 * \param columnsMap - node columns of the face to split
292 * \param params - computed parameters
294 //================================================================================
296 void splitParams( const int nbParts,
297 const TParam2ColumnMap* columnsMap,
298 vector< double > & params)
301 params.reserve( nbParts + 1 );
302 TParam2ColumnIt last_par_col = --columnsMap->end();
303 double par = columnsMap->begin()->first; // 0.
304 double parLast = last_par_col->first;
305 params.push_back( par );
306 for ( int i = 0; i < nbParts - 1; ++ i )
308 double partSize = ( parLast - par ) / double ( nbParts - i );
309 TParam2ColumnIt par_col = getColumn( columnsMap, par + partSize );
310 if ( par_col->first == par ) {
312 if ( par_col == last_par_col ) {
313 while ( i < nbParts - 1 )
314 params.push_back( par + partSize * i++ );
318 par = par_col->first;
319 params.push_back( par );
321 params.push_back( parLast ); // 1.
324 //================================================================================
326 * \brief Return coordinate system for z-th layer of nodes
328 //================================================================================
330 gp_Ax2 getLayerCoordSys(const int z,
331 const vector< const TNodeColumn* >& columns,
334 // gravity center of a layer
337 for ( int i = 0; i < columns.size(); ++i )
339 O += gpXYZ( (*columns[ i ])[ z ]);
340 if ( vertexCol < 0 &&
341 columns[ i ]->front()->GetPosition()->GetTypeOfPosition() == SMDS_TOP_VERTEX )
348 int iPrev = columns.size()-1;
349 for ( int i = 0; i < columns.size(); ++i )
351 gp_Vec v1( O, gpXYZ( (*columns[ iPrev ])[ z ]));
352 gp_Vec v2( O, gpXYZ( (*columns[ i ] )[ z ]));
357 if ( vertexCol >= 0 )
359 O = gpXYZ( (*columns[ vertexCol ])[ z ]);
361 if ( xColumn < 0 || xColumn >= columns.size() )
363 // select a column for X dir
365 for ( int i = 0; i < columns.size(); ++i )
367 double dist = ( O - gpXYZ((*columns[ i ])[ z ])).SquareModulus();
368 if ( dist > maxDist )
377 gp_Vec X( O, gpXYZ( (*columns[ xColumn ])[ z ]));
379 return gp_Ax2( O, Z, X);
382 //================================================================================
384 * \brief Removes submeshes that are or can be meshed with regular grid from given list
385 * \retval int - nb of removed submeshes
387 //================================================================================
389 int removeQuasiQuads(list< SMESH_subMesh* >& notQuadSubMesh,
390 SMESH_MesherHelper* helper,
391 StdMeshers_Quadrangle_2D* quadAlgo)
394 //SMESHDS_Mesh* mesh = notQuadSubMesh.front()->GetFather()->GetMeshDS();
395 list< SMESH_subMesh* >::iterator smIt = notQuadSubMesh.begin();
396 while ( smIt != notQuadSubMesh.end() )
398 SMESH_subMesh* faceSm = *smIt;
399 SMESHDS_SubMesh* faceSmDS = faceSm->GetSubMeshDS();
400 int nbQuads = faceSmDS ? faceSmDS->NbElements() : 0;
403 toRemove = helper->IsStructured( faceSm );
405 toRemove = quadAlgo->CheckNbEdges( *helper->GetMesh(),
406 faceSm->GetSubShape() );
407 nbRemoved += toRemove;
409 smIt = notQuadSubMesh.erase( smIt );
417 //================================================================================
419 * \brief Return and angle between two EDGEs
420 * \return double - the angle normalized so that
427 //================================================================================
429 double normAngle(const TopoDS_Edge & E1, const TopoDS_Edge & E2, const TopoDS_Face & F)
431 return SMESH_MesherHelper::GetAngle( E1, E2, F ) / ( 0.5 * M_PI );
434 //================================================================================
436 * Consider continuous straight EDGES as one side - mark them to unite
438 //================================================================================
440 int countNbSides( const Prism_3D::TPrismTopo & thePrism,
441 vector<int> & nbUnitePerEdge,
442 vector< double > & edgeLength)
444 int nbEdges = thePrism.myNbEdgesInWires.front(); // nb outer edges
445 int nbSides = nbEdges;
448 list< TopoDS_Edge >::const_iterator edgeIt = thePrism.myBottomEdges.begin();
449 std::advance( edgeIt, nbEdges-1 );
450 TopoDS_Edge prevE = *edgeIt;
451 // bool isPrevStraight = SMESH_Algo::IsStraight( prevE );
452 int iPrev = nbEdges - 1;
454 int iUnite = -1; // the first of united EDGEs
456 // analyse angles between EDGEs
458 vector< bool > isCorner( nbEdges );
459 edgeIt = thePrism.myBottomEdges.begin();
460 for ( int iE = 0; iE < nbEdges; ++iE, ++edgeIt )
462 const TopoDS_Edge& curE = *edgeIt;
463 edgeLength[ iE ] = SMESH_Algo::EdgeLength( curE );
465 // double normAngle = normAngle( prevE, curE, thePrism.myBottom );
466 // isCorner[ iE ] = false;
467 // if ( normAngle < 2.0 )
469 // if ( normAngle < 0.001 ) // straight or obtuse angle
471 // // unite EDGEs in order not to put a corner of the unit quadrangle at this VERTEX
474 // nbUnitePerEdge[ iUnite ]++;
475 // nbUnitePerEdge[ iE ] = -1;
480 // isCorner[ iE ] = true;
490 // define which of corners to put on a side of the unit quadrangle
492 // edgeIt = thePrism.myBottomEdges.begin();
493 // for ( int iE = 0; iE < nbEdges; ++iE, ++edgeIt )
495 // const TopoDS_Edge& curE = *edgeIt;
496 // edgeLength[ iE ] = SMESH_Algo::EdgeLength( curE );
498 // const bool isCurStraight = SMESH_Algo::IsStraight( curE );
499 // if ( isPrevStraight && isCurStraight && SMESH_Algo::IsContinuous( prevE, curE ))
503 // nbUnitePerEdge[ iUnite ]++;
504 // nbUnitePerEdge[ iE ] = -1;
512 // isPrevStraight = isCurStraight;
519 void pointsToPython(const std::vector<gp_XYZ>& p)
522 for ( int i = SMESH_Block::ID_V000; i < p.size(); ++i )
524 cout << "mesh.AddNode( " << p[i].X() << ", "<< p[i].Y() << ", "<< p[i].Z() << ") # " << i <<" " ;
525 SMESH_Block::DumpShapeID( i, cout ) << endl;
531 //=======================================================================
532 //function : StdMeshers_Prism_3D
534 //=======================================================================
536 StdMeshers_Prism_3D::StdMeshers_Prism_3D(int hypId, int studyId, SMESH_Gen* gen)
537 :SMESH_3D_Algo(hypId, studyId, gen)
540 _shapeType = (1 << TopAbs_SOLID); // 1 bit per shape type
541 _onlyUnaryInput = false; // accept all SOLIDs at once
542 _requireDiscreteBoundary = false; // mesh FACEs and EDGEs by myself
543 _supportSubmeshes = true; // "source" FACE must be meshed by other algo
544 _neededLowerHyps[ 1 ] = true; // suppress warning on hiding a global 1D algo
545 _neededLowerHyps[ 2 ] = true; // suppress warning on hiding a global 2D algo
547 //myProjectTriangles = false;
548 mySetErrorToSM = true; // to pass an error to a sub-mesh of a current solid or not
551 //================================================================================
555 //================================================================================
557 StdMeshers_Prism_3D::~StdMeshers_Prism_3D()
560 //=======================================================================
561 //function : CheckHypothesis
563 //=======================================================================
565 bool StdMeshers_Prism_3D::CheckHypothesis(SMESH_Mesh& aMesh,
566 const TopoDS_Shape& aShape,
567 SMESH_Hypothesis::Hypothesis_Status& aStatus)
569 // Check shape geometry
571 aStatus = SMESH_Hypothesis::HYP_BAD_GEOMETRY;
573 // find not quadrangle faces
574 list< TopoDS_Shape > notQuadFaces;
575 int nbEdge, nbWire, nbFace = 0;
576 TopExp_Explorer exp( aShape, TopAbs_FACE );
577 for ( ; exp.More(); exp.Next() ) {
579 const TopoDS_Shape& face = exp.Current();
580 nbEdge = TAssocTool::Count( face, TopAbs_EDGE, 0 );
581 nbWire = TAssocTool::Count( face, TopAbs_WIRE, 0 );
582 if ( nbEdge!= 4 || nbWire!= 1 ) {
583 if ( !notQuadFaces.empty() ) {
584 if ( TAssocTool::Count( notQuadFaces.back(), TopAbs_EDGE, 0 ) != nbEdge ||
585 TAssocTool::Count( notQuadFaces.back(), TopAbs_WIRE, 0 ) != nbWire )
586 RETURN_BAD_RESULT("Different not quad faces");
588 notQuadFaces.push_back( face );
591 if ( !notQuadFaces.empty() )
593 if ( notQuadFaces.size() != 2 )
594 RETURN_BAD_RESULT("Bad nb not quad faces: " << notQuadFaces.size());
596 // check total nb faces
597 nbEdge = TAssocTool::Count( notQuadFaces.back(), TopAbs_EDGE, 0 );
598 if ( nbFace != nbEdge + 2 )
599 RETURN_BAD_RESULT("Bad nb of faces: " << nbFace << " but must be " << nbEdge + 2);
603 aStatus = SMESH_Hypothesis::HYP_OK;
607 //=======================================================================
609 //purpose : Compute mesh on a COMPOUND of SOLIDs
610 //=======================================================================
612 bool StdMeshers_Prism_3D::Compute(SMESH_Mesh& theMesh, const TopoDS_Shape& theShape)
614 SMESH_MesherHelper helper( theMesh );
617 int nbSolids = helper.Count( theShape, TopAbs_SOLID, /*skipSame=*/false );
621 TopTools_IndexedDataMapOfShapeListOfShape faceToSolids;
622 TopExp::MapShapesAndAncestors( theShape, TopAbs_FACE, TopAbs_SOLID, faceToSolids );
624 // look for meshed FACEs ("source" FACEs) that must be prism bottoms
625 list< TopoDS_Face > meshedFaces, notQuadMeshedFaces, notQuadFaces;
626 const bool meshHasQuads = ( theMesh.NbQuadrangles() > 0 );
627 //StdMeshers_Quadrangle_2D* quadAlgo = TQuadrangleAlgo::instance( this );
628 for ( int iF = 1; iF <= faceToSolids.Extent(); ++iF )
630 const TopoDS_Face& face = TopoDS::Face( faceToSolids.FindKey( iF ));
631 SMESH_subMesh* faceSM = theMesh.GetSubMesh( face );
632 if ( !faceSM->IsEmpty() )
634 if ( !meshHasQuads ||
635 !helper.IsSameElemGeometry( faceSM->GetSubMeshDS(), SMDSGeom_QUADRANGLE ) ||
636 !helper.IsStructured( faceSM )
638 notQuadMeshedFaces.push_front( face );
639 else if ( myHelper->Count( face, TopAbs_EDGE, /*ignoreSame=*/false ) != 4 )
640 meshedFaces.push_front( face );
642 meshedFaces.push_back( face );
644 // not add not quadrilateral FACE as we can't compute it
645 // else if ( !quadAlgo->CheckNbEdges( theMesh, face ))
646 // // not add not quadrilateral FACE as it can be a prism side
647 // // else if ( myHelper->Count( face, TopAbs_EDGE, /*ignoreSame=*/false ) != 4 )
649 // notQuadFaces.push_back( face );
652 // notQuadFaces are of medium priority, put them before ordinary meshed faces
653 meshedFaces.splice( meshedFaces.begin(), notQuadFaces );
654 // notQuadMeshedFaces are of highest priority, put them before notQuadFaces
655 meshedFaces.splice( meshedFaces.begin(), notQuadMeshedFaces );
657 Prism_3D::TPrismTopo prism;
661 if ( !meshedFaces.empty() )
662 prism.myBottom = meshedFaces.front();
663 return ( initPrism( prism, TopExp_Explorer( theShape, TopAbs_SOLID ).Current() ) &&
667 // find propagation chains from already computed EDGEs
668 vector< TopoDS_Edge > computedEdges;
669 getPrecomputedEdges( helper, theShape, computedEdges );
670 myPropagChains = new TopTools_IndexedMapOfShape[ computedEdges.size() + 1 ];
671 SMESHUtils::ArrayDeleter< TopTools_IndexedMapOfShape > pcDel( myPropagChains );
672 for ( size_t i = 0, nb = 0; i < computedEdges.size(); ++i )
674 StdMeshers_ProjectionUtils::GetPropagationEdge( &theMesh, TopoDS_Edge(),
675 computedEdges[i], myPropagChains + nb );
676 if ( myPropagChains[ nb ].Extent() < 2 ) // an empty map is a termination sign
677 myPropagChains[ nb ].Clear();
682 TopTools_MapOfShape meshedSolids;
683 list< Prism_3D::TPrismTopo > meshedPrism;
684 TopTools_ListIteratorOfListOfShape solidIt;
686 while ( meshedSolids.Extent() < nbSolids )
688 if ( _computeCanceled )
689 return toSM( error( SMESH_ComputeError::New(COMPERR_CANCELED)));
691 // compute prisms having avident computed source FACE
692 while ( !meshedFaces.empty() )
694 TopoDS_Face face = meshedFaces.front();
695 meshedFaces.pop_front();
696 TopTools_ListOfShape& solidList = faceToSolids.ChangeFromKey( face );
697 while ( !solidList.IsEmpty() )
699 TopoDS_Shape solid = solidList.First();
700 solidList.RemoveFirst();
701 if ( meshedSolids.Add( solid ))
704 prism.myBottom = face;
705 if ( !initPrism( prism, solid ) ||
709 SMESHDS_SubMesh* smDS = theMesh.GetMeshDS()->MeshElements( prism.myTop );
710 if ( !myHelper->IsSameElemGeometry( smDS, SMDSGeom_QUADRANGLE ))
712 meshedFaces.push_front( prism.myTop );
714 meshedPrism.push_back( prism );
718 if ( meshedSolids.Extent() == nbSolids )
721 // below in the loop we try to find source FACEs somehow
723 // project mesh from source FACEs of computed prisms to
724 // prisms sharing wall FACEs
725 list< Prism_3D::TPrismTopo >::iterator prismIt = meshedPrism.begin();
726 for ( ; prismIt != meshedPrism.end(); ++prismIt )
728 for ( size_t iW = 0; iW < prismIt->myWallQuads.size(); ++iW )
730 Prism_3D::TQuadList::iterator wQuad = prismIt->myWallQuads[iW].begin();
731 for ( ; wQuad != prismIt->myWallQuads[iW].end(); ++ wQuad )
733 const TopoDS_Face& wFace = (*wQuad)->face;
734 TopTools_ListOfShape& solidList = faceToSolids.ChangeFromKey( wFace );
735 solidIt.Initialize( solidList );
736 while ( solidIt.More() )
738 const TopoDS_Shape& solid = solidIt.Value();
739 if ( meshedSolids.Contains( solid )) {
740 solidList.Remove( solidIt );
741 continue; // already computed prism
743 // find a source FACE of the SOLID: it's a FACE sharing a bottom EDGE with wFace
744 const TopoDS_Edge& wEdge = (*wQuad)->side[ QUAD_TOP_SIDE ].grid->Edge(0);
745 PShapeIteratorPtr faceIt = myHelper->GetAncestors( wEdge, *myHelper->GetMesh(),
747 while ( const TopoDS_Shape* f = faceIt->next() )
749 const TopoDS_Face& candidateF = TopoDS::Face( *f );
751 prism.myBottom = candidateF;
752 mySetErrorToSM = false;
753 if ( !myHelper->IsSubShape( candidateF, prismIt->myShape3D ) &&
754 myHelper->IsSubShape( candidateF, solid ) &&
755 !myHelper->GetMesh()->GetSubMesh( candidateF )->IsMeshComputed() &&
756 initPrism( prism, solid ) &&
757 project2dMesh( prismIt->myBottom, candidateF))
759 mySetErrorToSM = true;
760 if ( !compute( prism ))
762 SMESHDS_SubMesh* smDS = theMesh.GetMeshDS()->MeshElements( prism.myTop );
763 if ( !myHelper->IsSameElemGeometry( smDS, SMDSGeom_QUADRANGLE ))
765 meshedFaces.push_front( prism.myTop );
766 meshedFaces.push_front( prism.myBottom );
768 meshedPrism.push_back( prism );
769 meshedSolids.Add( solid );
773 mySetErrorToSM = true;
775 if ( meshedSolids.Contains( solid ))
776 solidList.Remove( solidIt );
782 if ( !meshedFaces.empty() )
783 break; // to compute prisms with avident sources
786 // find FACEs with local 1D hyps, which has to be computed by now,
787 // or at least any computed FACEs
788 for ( int iF = 1; ( meshedFaces.empty() && iF < faceToSolids.Extent() ); ++iF )
790 const TopoDS_Face& face = TopoDS::Face( faceToSolids.FindKey( iF ));
791 const TopTools_ListOfShape& solidList = faceToSolids.FindFromKey( face );
792 if ( solidList.IsEmpty() ) continue;
793 SMESH_subMesh* faceSM = theMesh.GetSubMesh( face );
794 if ( !faceSM->IsEmpty() )
796 meshedFaces.push_back( face ); // lower priority
800 bool allSubMeComputed = true;
801 SMESH_subMeshIteratorPtr smIt = faceSM->getDependsOnIterator(false,true);
802 while ( smIt->more() && allSubMeComputed )
803 allSubMeComputed = smIt->next()->IsMeshComputed();
804 if ( allSubMeComputed )
806 faceSM->ComputeStateEngine( SMESH_subMesh::COMPUTE );
807 if ( !faceSM->IsEmpty() )
808 meshedFaces.push_front( face ); // higher priority
810 faceSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
816 // TODO. there are other ways to find out the source FACE:
817 // propagation, topological similarity, ect.
819 // simply try to mesh all not meshed SOLIDs
820 if ( meshedFaces.empty() )
822 for ( TopExp_Explorer solid( theShape, TopAbs_SOLID ); solid.More(); solid.Next() )
824 mySetErrorToSM = false;
826 if ( !meshedSolids.Contains( solid.Current() ) &&
827 initPrism( prism, solid.Current() ))
829 mySetErrorToSM = true;
830 if ( !compute( prism ))
832 meshedFaces.push_front( prism.myTop );
833 meshedFaces.push_front( prism.myBottom );
834 meshedPrism.push_back( prism );
835 meshedSolids.Add( solid.Current() );
837 mySetErrorToSM = true;
841 if ( meshedFaces.empty() ) // set same error to 10 not-computed solids
843 SMESH_ComputeErrorPtr err = SMESH_ComputeError::New
844 ( COMPERR_BAD_INPUT_MESH, "No meshed source face found", this );
846 const int maxNbErrors = 10; // limit nb errors not to overload the Compute dialog
847 TopExp_Explorer solid( theShape, TopAbs_SOLID );
848 for ( int i = 0; ( i < maxNbErrors && solid.More() ); ++i, solid.Next() )
849 if ( !meshedSolids.Contains( solid.Current() ))
851 SMESH_subMesh* sm = theMesh.GetSubMesh( solid.Current() );
852 sm->GetComputeError() = err;
860 //================================================================================
862 * \brief Find wall faces by bottom edges
864 //================================================================================
866 bool StdMeshers_Prism_3D::getWallFaces( Prism_3D::TPrismTopo & thePrism,
867 const int totalNbFaces)
869 thePrism.myWallQuads.clear();
871 SMESH_Mesh* mesh = myHelper->GetMesh();
873 StdMeshers_Quadrangle_2D* quadAlgo = TQuadrangleAlgo::instance( this, myHelper );
875 TopTools_MapOfShape faceMap;
876 TopTools_IndexedDataMapOfShapeListOfShape edgeToFaces;
877 TopExp::MapShapesAndAncestors( thePrism.myShape3D,
878 TopAbs_EDGE, TopAbs_FACE, edgeToFaces );
880 // ------------------------------
881 // Get the 1st row of wall FACEs
882 // ------------------------------
884 list< TopoDS_Edge >::iterator edge = thePrism.myBottomEdges.begin();
885 std::list< int >::iterator nbE = thePrism.myNbEdgesInWires.begin();
888 while ( edge != thePrism.myBottomEdges.end() )
891 if ( BRep_Tool::Curve( *edge, f,l ).IsNull() )
893 edge = thePrism.myBottomEdges.erase( edge );
899 TopTools_ListIteratorOfListOfShape faceIt( edgeToFaces.FindFromKey( *edge ));
900 for ( ; faceIt.More(); faceIt.Next() )
902 const TopoDS_Face& face = TopoDS::Face( faceIt.Value() );
903 if ( !thePrism.myBottom.IsSame( face ))
905 Prism_3D::TQuadList quadList( 1, quadAlgo->CheckNbEdges( *mesh, face ));
906 if ( !quadList.back() )
907 return toSM( error(TCom("Side face #") << shapeID( face )
908 << " not meshable with quadrangles"));
909 if ( ! setBottomEdge( *edge, quadList.back(), face ))
910 ; //return toSM( error(TCom("Composite 'horizontal' edges are not supported")));
911 if ( faceMap.Add( face ))
912 thePrism.myWallQuads.push_back( quadList );
925 // -------------------------
926 // Find the rest wall FACEs
927 // -------------------------
929 // Compose a vector of indixes of right neighbour FACE for each wall FACE
930 // that is not so evident in case of several WIREs in the bottom FACE
931 thePrism.myRightQuadIndex.clear();
932 for ( size_t i = 0; i < thePrism.myWallQuads.size(); ++i )
933 thePrism.myRightQuadIndex.push_back( i+1 );
934 list< int >::iterator nbEinW = thePrism.myNbEdgesInWires.begin();
935 for ( int iLeft = 0; nbEinW != thePrism.myNbEdgesInWires.end(); ++nbEinW )
937 thePrism.myRightQuadIndex[ iLeft + *nbEinW - 1 ] = iLeft; // 1st EDGE index of a current WIRE
941 while ( totalNbFaces - faceMap.Extent() > 2 )
943 // find wall FACEs adjacent to each of wallQuads by the right side EDGE
946 nbKnownFaces = faceMap.Extent();
947 StdMeshers_FaceSidePtr rightSide, topSide; // sides of the quad
948 for ( size_t i = 0; i < thePrism.myWallQuads.size(); ++i )
950 rightSide = thePrism.myWallQuads[i].back()->side[ QUAD_RIGHT_SIDE ];
951 for ( int iE = 0; iE < rightSide->NbEdges(); ++iE ) // rightSide can be composite
953 const TopoDS_Edge & rightE = rightSide->Edge( iE );
954 TopTools_ListIteratorOfListOfShape face( edgeToFaces.FindFromKey( rightE ));
955 for ( ; face.More(); face.Next() )
956 if ( faceMap.Add( face.Value() ))
958 // a new wall FACE encountered, store it in thePrism.myWallQuads
959 const int iRight = thePrism.myRightQuadIndex[i];
960 topSide = thePrism.myWallQuads[ iRight ].back()->side[ QUAD_TOP_SIDE ];
961 const TopoDS_Edge& newBotE = topSide->Edge(0);
962 const TopoDS_Shape& newWallF = face.Value();
963 thePrism.myWallQuads[ iRight ].push_back( quadAlgo->CheckNbEdges( *mesh, newWallF ));
964 if ( !thePrism.myWallQuads[ iRight ].back() )
965 return toSM( error(TCom("Side face #") << shapeID( newWallF ) <<
966 " not meshable with quadrangles"));
967 if ( ! setBottomEdge( newBotE, thePrism.myWallQuads[ iRight ].back(), newWallF ))
968 return toSM( error(TCom("Composite 'horizontal' edges are not supported")));
972 } while ( nbKnownFaces != faceMap.Extent() );
974 // find wall FACEs adjacent to each of thePrism.myWallQuads by the top side EDGE
975 if ( totalNbFaces - faceMap.Extent() > 2 )
977 for ( size_t i = 0; i < thePrism.myWallQuads.size(); ++i )
979 StdMeshers_FaceSidePtr topSide = thePrism.myWallQuads[i].back()->side[ QUAD_TOP_SIDE ];
980 const TopoDS_Edge & topE = topSide->Edge( 0 );
981 if ( topSide->NbEdges() > 1 )
982 return toSM( error(COMPERR_BAD_SHAPE, TCom("Side face #") <<
983 shapeID( thePrism.myWallQuads[i].back()->face )
984 << " has a composite top edge"));
985 TopTools_ListIteratorOfListOfShape faceIt( edgeToFaces.FindFromKey( topE ));
986 for ( ; faceIt.More(); faceIt.Next() )
987 if ( faceMap.Add( faceIt.Value() ))
989 // a new wall FACE encountered, store it in wallQuads
990 thePrism.myWallQuads[ i ].push_back( quadAlgo->CheckNbEdges( *mesh, faceIt.Value() ));
991 if ( !thePrism.myWallQuads[ i ].back() )
992 return toSM( error(TCom("Side face #") << shapeID( faceIt.Value() ) <<
993 " not meshable with quadrangles"));
994 if ( ! setBottomEdge( topE, thePrism.myWallQuads[ i ].back(), faceIt.Value() ))
995 return toSM( error(TCom("Composite 'horizontal' edges are not supported")));
996 if ( totalNbFaces - faceMap.Extent() == 2 )
998 i = thePrism.myWallQuads.size(); // to quit from the outer loop
1004 } // while ( totalNbFaces - faceMap.Extent() > 2 )
1006 // ------------------
1007 // Find the top FACE
1008 // ------------------
1010 if ( thePrism.myTop.IsNull() )
1012 // now only top and bottom FACEs are not in the faceMap
1013 faceMap.Add( thePrism.myBottom );
1014 for ( TopExp_Explorer f( thePrism.myShape3D, TopAbs_FACE );f.More(); f.Next() )
1015 if ( !faceMap.Contains( f.Current() )) {
1016 thePrism.myTop = TopoDS::Face( f.Current() );
1019 if ( thePrism.myTop.IsNull() )
1020 return toSM( error("Top face not found"));
1023 // Check that the top FACE shares all the top EDGEs
1024 for ( size_t i = 0; i < thePrism.myWallQuads.size(); ++i )
1026 StdMeshers_FaceSidePtr topSide = thePrism.myWallQuads[i].back()->side[ QUAD_TOP_SIDE ];
1027 const TopoDS_Edge & topE = topSide->Edge( 0 );
1028 if ( !myHelper->IsSubShape( topE, thePrism.myTop ))
1029 return toSM( error( TCom("Wrong source face (#") << shapeID( thePrism.myBottom )));
1035 //=======================================================================
1036 //function : compute
1037 //purpose : Compute mesh on a SOLID
1038 //=======================================================================
1040 bool StdMeshers_Prism_3D::compute(const Prism_3D::TPrismTopo& thePrism)
1042 myHelper->IsQuadraticSubMesh( thePrism.myShape3D );
1043 if ( _computeCanceled )
1044 return toSM( error( SMESH_ComputeError::New(COMPERR_CANCELED)));
1046 // Make all side FACEs of thePrism meshed with quads
1047 if ( !computeWalls( thePrism ))
1050 // Analyse mesh and geometry to find all block sub-shapes and submeshes
1051 if ( !myBlock.Init( myHelper, thePrism ))
1052 return toSM( error( myBlock.GetError()));
1054 SMESHDS_Mesh* meshDS = myHelper->GetMeshDS();
1056 int volumeID = meshDS->ShapeToIndex( thePrism.myShape3D );
1058 // Try to get gp_Trsf to get all nodes from bottom ones
1059 vector<gp_Trsf> trsf;
1060 gp_Trsf bottomToTopTrsf;
1061 if ( !myBlock.GetLayersTransformation( trsf, thePrism ))
1063 else if ( !trsf.empty() )
1064 bottomToTopTrsf = trsf.back();
1066 // To compute coordinates of a node inside a block, it is necessary to know
1067 // 1. normalized parameters of the node by which
1068 // 2. coordinates of node projections on all block sub-shapes are computed
1070 // So we fill projections on vertices at once as they are same for all nodes
1071 myShapeXYZ.resize( myBlock.NbSubShapes() );
1072 for ( int iV = SMESH_Block::ID_FirstV; iV < SMESH_Block::ID_FirstE; ++iV ) {
1073 myBlock.VertexPoint( iV, myShapeXYZ[ iV ]);
1074 SHOWYXZ("V point " <<iV << " ", myShapeXYZ[ iV ]);
1077 // Projections on the top and bottom faces are taken from nodes existing
1078 // on these faces; find correspondence between bottom and top nodes
1079 myBotToColumnMap.clear();
1080 if ( !assocOrProjBottom2Top( bottomToTopTrsf ) ) // it also fills myBotToColumnMap
1084 // Create nodes inside the block
1086 // try to use transformation (issue 0020680)
1087 if ( !trsf.empty() )
1089 // loop on nodes inside the bottom face
1090 TNode2ColumnMap::iterator bot_column = myBotToColumnMap.begin();
1091 for ( ; bot_column != myBotToColumnMap.end(); ++bot_column )
1093 const Prism_3D::TNode& tBotNode = bot_column->first; // bottom TNode
1094 if ( tBotNode.GetPositionType() != SMDS_TOP_FACE )
1095 continue; // node is not inside face
1097 // column nodes; middle part of the column are zero pointers
1098 TNodeColumn& column = bot_column->second;
1099 TNodeColumn::iterator columnNodes = column.begin();
1100 for ( int z = 0; columnNodes != column.end(); ++columnNodes, ++z)
1102 const SMDS_MeshNode* & node = *columnNodes;
1103 if ( node ) continue; // skip bottom or top node
1105 gp_XYZ coords = tBotNode.GetCoords();
1106 trsf[z-1].Transforms( coords );
1107 node = meshDS->AddNode( coords.X(), coords.Y(), coords.Z() );
1108 meshDS->SetNodeInVolume( node, volumeID );
1110 } // loop on bottom nodes
1112 else // use block approach
1114 // loop on nodes inside the bottom face
1115 Prism_3D::TNode prevBNode;
1116 TNode2ColumnMap::iterator bot_column = myBotToColumnMap.begin();
1117 for ( ; bot_column != myBotToColumnMap.end(); ++bot_column )
1119 const Prism_3D::TNode& tBotNode = bot_column->first; // bottom TNode
1120 if ( tBotNode.GetPositionType() != SMDS_TOP_FACE )
1121 continue; // node is not inside the FACE
1123 // column nodes; middle part of the column are zero pointers
1124 TNodeColumn& column = bot_column->second;
1126 gp_XYZ botParams, topParams;
1127 if ( !tBotNode.HasParams() )
1129 // compute bottom node parameters
1130 gp_XYZ paramHint(-1,-1,-1);
1131 if ( prevBNode.IsNeighbor( tBotNode ))
1132 paramHint = prevBNode.GetParams();
1133 if ( !myBlock.ComputeParameters( tBotNode.GetCoords(), tBotNode.ChangeParams(),
1134 ID_BOT_FACE, paramHint ))
1135 return toSM( error(TCom("Can't compute normalized parameters for node ")
1136 << tBotNode.myNode->GetID() << " on the face #"
1137 << myBlock.SubMesh( ID_BOT_FACE )->GetId() ));
1138 prevBNode = tBotNode;
1140 botParams = topParams = tBotNode.GetParams();
1141 topParams.SetZ( 1 );
1143 // compute top node parameters
1144 if ( column.size() > 2 ) {
1145 gp_Pnt topCoords = gpXYZ( column.back() );
1146 if ( !myBlock.ComputeParameters( topCoords, topParams, ID_TOP_FACE, topParams ))
1147 return toSM( error(TCom("Can't compute normalized parameters ")
1148 << "for node " << column.back()->GetID()
1149 << " on the face #"<< column.back()->getshapeId() ));
1152 else // top nodes are created by projection using parameters
1154 botParams = topParams = tBotNode.GetParams();
1155 topParams.SetZ( 1 );
1158 myShapeXYZ[ ID_BOT_FACE ] = tBotNode.GetCoords();
1159 myShapeXYZ[ ID_TOP_FACE ] = gpXYZ( column.back() );
1162 TNodeColumn::iterator columnNodes = column.begin();
1163 for ( int z = 0; columnNodes != column.end(); ++columnNodes, ++z)
1165 const SMDS_MeshNode* & node = *columnNodes;
1166 if ( node ) continue; // skip bottom or top node
1168 // params of a node to create
1169 double rz = (double) z / (double) ( column.size() - 1 );
1170 gp_XYZ params = botParams * ( 1 - rz ) + topParams * rz;
1172 // set coords on all faces and nodes
1173 const int nbSideFaces = 4;
1174 int sideFaceIDs[nbSideFaces] = { SMESH_Block::ID_Fx0z,
1175 SMESH_Block::ID_Fx1z,
1176 SMESH_Block::ID_F0yz,
1177 SMESH_Block::ID_F1yz };
1178 for ( int iF = 0; iF < nbSideFaces; ++iF )
1179 if ( !setFaceAndEdgesXYZ( sideFaceIDs[ iF ], params, z ))
1182 // compute coords for a new node
1184 if ( !SMESH_Block::ShellPoint( params, myShapeXYZ, coords ))
1185 return toSM( error("Can't compute coordinates by normalized parameters"));
1187 // if ( !meshDS->MeshElements( volumeID ) ||
1188 // meshDS->MeshElements( volumeID )->NbNodes() == 0 )
1189 // pointsToPython(myShapeXYZ);
1190 SHOWYXZ("TOPFacePoint ",myShapeXYZ[ ID_TOP_FACE]);
1191 SHOWYXZ("BOT Node "<< tBotNode.myNode->GetID(),gpXYZ(tBotNode.myNode));
1192 SHOWYXZ("ShellPoint ",coords);
1195 node = meshDS->AddNode( coords.X(), coords.Y(), coords.Z() );
1196 meshDS->SetNodeInVolume( node, volumeID );
1198 } // loop on bottom nodes
1203 SMESHDS_SubMesh* smDS = myBlock.SubMeshDS( ID_BOT_FACE );
1204 if ( !smDS ) return toSM( error(COMPERR_BAD_INPUT_MESH, "Null submesh"));
1206 // loop on bottom mesh faces
1207 SMDS_ElemIteratorPtr faceIt = smDS->GetElements();
1208 while ( faceIt->more() )
1210 const SMDS_MeshElement* face = faceIt->next();
1211 if ( !face || face->GetType() != SMDSAbs_Face )
1214 // find node columns for each node
1215 int nbNodes = face->NbCornerNodes();
1216 vector< const TNodeColumn* > columns( nbNodes );
1217 for ( int i = 0; i < nbNodes; ++i )
1219 const SMDS_MeshNode* n = face->GetNode( i );
1220 if ( n->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE ) {
1221 TNode2ColumnMap::iterator bot_column = myBotToColumnMap.find( n );
1222 if ( bot_column == myBotToColumnMap.end() )
1223 return toSM( error(TCom("No nodes found above node ") << n->GetID() ));
1224 columns[ i ] = & bot_column->second;
1227 columns[ i ] = myBlock.GetNodeColumn( n );
1228 if ( !columns[ i ] )
1229 return toSM( error(TCom("No side nodes found above node ") << n->GetID() ));
1233 AddPrisms( columns, myHelper );
1235 } // loop on bottom mesh faces
1238 myBotToColumnMap.clear();
1244 //=======================================================================
1245 //function : computeWalls
1246 //purpose : Compute 2D mesh on walls FACEs of a prism
1247 //=======================================================================
1249 bool StdMeshers_Prism_3D::computeWalls(const Prism_3D::TPrismTopo& thePrism)
1251 SMESH_Mesh* mesh = myHelper->GetMesh();
1252 SMESHDS_Mesh* meshDS = myHelper->GetMeshDS();
1253 DBGOUT( endl << "COMPUTE Prism " << meshDS->ShapeToIndex( thePrism.myShape3D ));
1255 TProjction1dAlgo* projector1D = TProjction1dAlgo::instance( this );
1256 StdMeshers_Quadrangle_2D* quadAlgo = TQuadrangleAlgo::instance( this, myHelper );
1258 SMESH_HypoFilter hyp1dFilter( SMESH_HypoFilter::IsAlgo(),/*not=*/true);
1259 hyp1dFilter.And( SMESH_HypoFilter::HasDim( 1 ));
1260 hyp1dFilter.And( SMESH_HypoFilter::IsMoreLocalThan( thePrism.myShape3D, *mesh ));
1262 // Discretize equally 'vertical' EDGEs
1263 // -----------------------------------
1264 // find source FACE sides for projection: either already computed ones or
1265 // the 'most composite' ones
1266 multimap< int, int > wgt2quad;
1267 for ( size_t iW = 0; iW != thePrism.myWallQuads.size(); ++iW )
1269 Prism_3D::TQuadList::const_iterator quad = thePrism.myWallQuads[iW].begin();
1270 int wgt = 0; // "weight"
1271 for ( ; quad != thePrism.myWallQuads[iW].end(); ++quad )
1273 StdMeshers_FaceSidePtr lftSide = (*quad)->side[ QUAD_LEFT_SIDE ];
1274 for ( int i = 0; i < lftSide->NbEdges(); ++i )
1277 const TopoDS_Edge& E = lftSide->Edge(i);
1278 if ( mesh->GetSubMesh( E )->IsMeshComputed() )
1280 else if ( mesh->GetHypothesis( E, hyp1dFilter, true )) // local hypothesis!
1284 wgt2quad.insert( make_pair( wgt, iW ));
1286 // in quadratic mesh, pass ignoreMediumNodes to quad sides
1287 if ( myHelper->GetIsQuadratic() )
1289 quad = thePrism.myWallQuads[iW].begin();
1290 for ( ; quad != thePrism.myWallQuads[iW].end(); ++quad )
1291 for ( int i = 0; i < NB_QUAD_SIDES; ++i )
1292 (*quad)->side[ i ].grid->SetIgnoreMediumNodes( true );
1296 // Project 'vertical' EDGEs, from left to right
1297 multimap< int, int >::reverse_iterator w2q = wgt2quad.rbegin();
1298 for ( ; w2q != wgt2quad.rend(); ++w2q )
1300 const int iW = w2q->second;
1301 const Prism_3D::TQuadList& quads = thePrism.myWallQuads[ iW ];
1302 Prism_3D::TQuadList::const_iterator quad = quads.begin();
1303 for ( ; quad != quads.end(); ++quad )
1305 StdMeshers_FaceSidePtr rgtSide = (*quad)->side[ QUAD_RIGHT_SIDE ]; // tgt
1306 StdMeshers_FaceSidePtr lftSide = (*quad)->side[ QUAD_LEFT_SIDE ]; // src
1307 bool swapLeftRight = ( lftSide->NbSegments( /*update=*/true ) == 0 &&
1308 rgtSide->NbSegments( /*update=*/true ) > 0 );
1309 if ( swapLeftRight )
1310 std::swap( lftSide, rgtSide );
1312 // assure that all the source (left) EDGEs are meshed
1313 int nbSrcSegments = 0;
1314 for ( int i = 0; i < lftSide->NbEdges(); ++i )
1316 const TopoDS_Edge& srcE = lftSide->Edge(i);
1317 SMESH_subMesh* srcSM = mesh->GetSubMesh( srcE );
1318 if ( !srcSM->IsMeshComputed() ) {
1319 DBGOUT( "COMPUTE V edge " << srcSM->GetId() );
1320 TopoDS_Edge prpgSrcE = findPropagationSource( srcE );
1321 if ( !prpgSrcE.IsNull() ) {
1322 srcSM->ComputeSubMeshStateEngine( SMESH_subMesh::COMPUTE );
1323 projector1D->myHyp.SetSourceEdge( prpgSrcE );
1324 projector1D->Compute( *mesh, srcE );
1325 srcSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
1328 srcSM->ComputeSubMeshStateEngine( SMESH_subMesh::COMPUTE );
1329 srcSM->ComputeStateEngine ( SMESH_subMesh::COMPUTE );
1331 if ( !srcSM->IsMeshComputed() )
1332 return toSM( error( "Can't compute 1D mesh" ));
1334 nbSrcSegments += srcSM->GetSubMeshDS()->NbElements();
1336 // check target EDGEs
1337 int nbTgtMeshed = 0, nbTgtSegments = 0;
1338 vector< bool > isTgtEdgeComputed( rgtSide->NbEdges() );
1339 for ( int i = 0; i < rgtSide->NbEdges(); ++i )
1341 const TopoDS_Edge& tgtE = rgtSide->Edge(i);
1342 SMESH_subMesh* tgtSM = mesh->GetSubMesh( tgtE );
1343 if (( isTgtEdgeComputed[ i ] = tgtSM->IsMeshComputed() )) {
1345 nbTgtSegments += tgtSM->GetSubMeshDS()->NbElements();
1348 if ( rgtSide->NbEdges() == nbTgtMeshed ) // all tgt EDGEs meshed
1350 if ( nbTgtSegments != nbSrcSegments )
1352 for ( int i = 0; i < lftSide->NbEdges(); ++i )
1353 addBadInputElements( meshDS->MeshElements( lftSide->Edge( i )));
1354 for ( int i = 0; i < rgtSide->NbEdges(); ++i )
1355 addBadInputElements( meshDS->MeshElements( rgtSide->Edge( i )));
1356 return toSM( error( TCom("Different nb of segment on logically vertical edges #")
1357 << shapeID( lftSide->Edge(0) ) << " and #"
1358 << shapeID( rgtSide->Edge(0) ) << ": "
1359 << nbSrcSegments << " != " << nbTgtSegments ));
1363 // Compute 'vertical projection'
1364 if ( nbTgtMeshed == 0 )
1366 // compute nodes on target VERTEXes
1367 const UVPtStructVec& srcNodeStr = lftSide->GetUVPtStruct();
1368 if ( srcNodeStr.size() == 0 )
1369 return toSM( error( TCom("Invalid node positions on edge #") <<
1370 shapeID( lftSide->Edge(0) )));
1371 vector< SMDS_MeshNode* > newNodes( srcNodeStr.size() );
1372 for ( int is2ndV = 0; is2ndV < 2; ++is2ndV )
1374 const TopoDS_Edge& E = rgtSide->Edge( is2ndV ? rgtSide->NbEdges()-1 : 0 );
1375 TopoDS_Vertex v = myHelper->IthVertex( is2ndV, E );
1376 mesh->GetSubMesh( v )->ComputeStateEngine( SMESH_subMesh::COMPUTE );
1377 const SMDS_MeshNode* n = SMESH_Algo::VertexNode( v, meshDS );
1378 newNodes[ is2ndV ? 0 : newNodes.size()-1 ] = (SMDS_MeshNode*) n;
1381 // compute nodes on target EDGEs
1382 DBGOUT( "COMPUTE V edge (proj) " << shapeID( lftSide->Edge(0)));
1383 rgtSide->Reverse(); // direct it same as the lftSide
1384 myHelper->SetElementsOnShape( false ); // myHelper holds the prism shape
1385 TopoDS_Edge tgtEdge;
1386 for ( size_t iN = 1; iN < srcNodeStr.size()-1; ++iN ) // add nodes
1388 gp_Pnt p = rgtSide->Value3d ( srcNodeStr[ iN ].normParam );
1389 double u = rgtSide->Parameter( srcNodeStr[ iN ].normParam, tgtEdge );
1390 newNodes[ iN ] = meshDS->AddNode( p.X(), p.Y(), p.Z() );
1391 meshDS->SetNodeOnEdge( newNodes[ iN ], tgtEdge, u );
1393 for ( size_t iN = 1; iN < srcNodeStr.size(); ++iN ) // add segments
1395 // find an EDGE to set a new segment
1396 std::pair<int, TopAbs_ShapeEnum> id2type =
1397 myHelper->GetMediumPos( newNodes[ iN-1 ], newNodes[ iN ] );
1398 if ( id2type.second != TopAbs_EDGE )
1400 // new nodes are on different EDGEs; put one of them on VERTEX
1401 const int edgeIndex = rgtSide->EdgeIndex( srcNodeStr[ iN-1 ].normParam );
1402 const double vertexParam = rgtSide->LastParameter( edgeIndex );
1403 const gp_Pnt p = BRep_Tool::Pnt( rgtSide->LastVertex( edgeIndex ));
1404 const int isPrev = ( Abs( srcNodeStr[ iN-1 ].normParam - vertexParam ) <
1405 Abs( srcNodeStr[ iN ].normParam - vertexParam ));
1406 meshDS->UnSetNodeOnShape( newNodes[ iN-isPrev ] );
1407 meshDS->SetNodeOnVertex ( newNodes[ iN-isPrev ], rgtSide->LastVertex( edgeIndex ));
1408 meshDS->MoveNode ( newNodes[ iN-isPrev ], p.X(), p.Y(), p.Z() );
1409 id2type.first = newNodes[ iN-(1-isPrev) ]->getshapeId();
1411 SMDS_MeshElement* newEdge = myHelper->AddEdge( newNodes[ iN-1 ], newNodes[ iN ] );
1412 meshDS->SetMeshElementOnShape( newEdge, id2type.first );
1414 myHelper->SetElementsOnShape( true );
1415 for ( int i = 0; i < rgtSide->NbEdges(); ++i ) // update state of sub-meshes
1417 const TopoDS_Edge& E = rgtSide->Edge( i );
1418 SMESH_subMesh* tgtSM = mesh->GetSubMesh( E );
1419 tgtSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
1422 // to continue projection from the just computed side as a source
1423 if ( !swapLeftRight && rgtSide->NbEdges() > 1 && w2q->second == iW )
1425 std::pair<int,int> wgt2quadKeyVal( w2q->first + 1, thePrism.myRightQuadIndex[ iW ]);
1426 wgt2quad.insert( wgt2quadKeyVal ); // it will be skipped by ++w2q
1427 wgt2quad.insert( wgt2quadKeyVal );
1428 w2q = wgt2quad.rbegin();
1433 // HOPE assigned hypotheses are OK, so that equal nb of segments will be generated
1434 //return toSM( error("Partial projection not implemented"));
1436 } // loop on quads of a composite wall side
1437 } // loop on the ordered wall sides
1441 for ( size_t iW = 0; iW != thePrism.myWallQuads.size(); ++iW )
1443 Prism_3D::TQuadList::const_iterator quad = thePrism.myWallQuads[iW].begin();
1444 for ( ; quad != thePrism.myWallQuads[iW].end(); ++quad )
1446 // Top EDGEs must be projections from the bottom ones
1447 // to compute stuctured quad mesh on wall FACEs
1448 // ---------------------------------------------------
1450 const TopoDS_Edge& botE = (*quad)->side[ QUAD_BOTTOM_SIDE ].grid->Edge(0);
1451 const TopoDS_Edge& topE = (*quad)->side[ QUAD_TOP_SIDE ].grid->Edge(0);
1452 SMESH_subMesh* botSM = mesh->GetSubMesh( botE );
1453 SMESH_subMesh* topSM = mesh->GetSubMesh( topE );
1454 SMESH_subMesh* srcSM = botSM;
1455 SMESH_subMesh* tgtSM = topSM;
1456 if ( !srcSM->IsMeshComputed() && tgtSM->IsMeshComputed() )
1457 std::swap( srcSM, tgtSM );
1459 if ( !srcSM->IsMeshComputed() )
1461 DBGOUT( "COMPUTE H edge " << srcSM->GetId());
1462 srcSM->ComputeSubMeshStateEngine( SMESH_subMesh::COMPUTE ); // nodes on VERTEXes
1463 srcSM->ComputeStateEngine( SMESH_subMesh::COMPUTE ); // segments on the EDGE
1465 srcSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
1467 if ( tgtSM->IsMeshComputed() &&
1468 tgtSM->GetSubMeshDS()->NbNodes() != srcSM->GetSubMeshDS()->NbNodes() )
1470 // the top EDGE is computed differently than the bottom one,
1471 // try to clear a wrong mesh
1472 bool isAdjFaceMeshed = false;
1473 PShapeIteratorPtr fIt = myHelper->GetAncestors( tgtSM->GetSubShape(),
1474 *mesh, TopAbs_FACE );
1475 while ( const TopoDS_Shape* f = fIt->next() )
1476 if (( isAdjFaceMeshed = mesh->GetSubMesh( *f )->IsMeshComputed() ))
1478 if ( isAdjFaceMeshed )
1479 return toSM( error( TCom("Different nb of segment on logically horizontal edges #")
1480 << shapeID( botE ) << " and #"
1481 << shapeID( topE ) << ": "
1482 << tgtSM->GetSubMeshDS()->NbElements() << " != "
1483 << srcSM->GetSubMeshDS()->NbElements() ));
1484 tgtSM->ComputeStateEngine( SMESH_subMesh::CLEAN );
1486 if ( !tgtSM->IsMeshComputed() )
1488 // compute nodes on VERTEXes
1489 SMESH_subMeshIteratorPtr smIt = tgtSM->getDependsOnIterator(/*includeSelf=*/false);
1490 while ( smIt->more() )
1491 smIt->next()->ComputeStateEngine( SMESH_subMesh::COMPUTE );
1493 DBGOUT( "COMPUTE H edge (proj) " << tgtSM->GetId());
1494 projector1D->myHyp.SetSourceEdge( TopoDS::Edge( srcSM->GetSubShape() ));
1495 projector1D->InitComputeError();
1496 bool ok = projector1D->Compute( *mesh, tgtSM->GetSubShape() );
1499 SMESH_ComputeErrorPtr err = projector1D->GetComputeError();
1500 if ( err->IsOK() ) err->myName = COMPERR_ALGO_FAILED;
1501 tgtSM->GetComputeError() = err;
1505 tgtSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
1508 // Compute quad mesh on wall FACEs
1509 // -------------------------------
1510 const TopoDS_Face& face = (*quad)->face;
1511 SMESH_subMesh* fSM = mesh->GetSubMesh( face );
1512 if ( ! fSM->IsMeshComputed() )
1514 // make all EDGES meshed
1515 fSM->ComputeSubMeshStateEngine( SMESH_subMesh::COMPUTE );
1516 if ( !fSM->SubMeshesComputed() )
1517 return toSM( error( COMPERR_BAD_INPUT_MESH,
1518 "Not all edges have valid algorithm and hypothesis"));
1520 quadAlgo->InitComputeError();
1521 DBGOUT( "COMPUTE Quad face " << fSM->GetId());
1522 bool ok = quadAlgo->Compute( *mesh, face );
1523 fSM->GetComputeError() = quadAlgo->GetComputeError();
1526 fSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
1528 if ( myHelper->GetIsQuadratic() )
1530 // fill myHelper with medium nodes built by quadAlgo
1531 SMDS_ElemIteratorPtr fIt = fSM->GetSubMeshDS()->GetElements();
1532 while ( fIt->more() )
1533 myHelper->AddTLinks( dynamic_cast<const SMDS_MeshFace*>( fIt->next() ));
1541 //=======================================================================
1543 * \brief Returns a source EDGE of propagation to a given EDGE
1545 //=======================================================================
1547 TopoDS_Edge StdMeshers_Prism_3D::findPropagationSource( const TopoDS_Edge& E )
1549 for ( size_t i = 0; !myPropagChains[i].IsEmpty(); ++i )
1550 if ( myPropagChains[i].Contains( E ))
1551 return TopoDS::Edge( myPropagChains[i].FindKey( 1 ));
1553 return TopoDS_Edge();
1556 //=======================================================================
1557 //function : Evaluate
1559 //=======================================================================
1561 bool StdMeshers_Prism_3D::Evaluate(SMESH_Mesh& theMesh,
1562 const TopoDS_Shape& theShape,
1563 MapShapeNbElems& aResMap)
1565 if ( theShape.ShapeType() == TopAbs_COMPOUND )
1568 for ( TopoDS_Iterator it( theShape ); it.More(); it.Next() )
1569 ok &= Evaluate( theMesh, it.Value(), aResMap );
1572 SMESH_MesherHelper helper( theMesh );
1574 myHelper->SetSubShape( theShape );
1576 // find face contains only triangles
1577 vector < SMESH_subMesh * >meshFaces;
1578 TopTools_SequenceOfShape aFaces;
1579 int NumBase = 0, i = 0, NbQFs = 0;
1580 for (TopExp_Explorer exp(theShape, TopAbs_FACE); exp.More(); exp.Next()) {
1582 aFaces.Append(exp.Current());
1583 SMESH_subMesh *aSubMesh = theMesh.GetSubMesh(exp.Current());
1584 meshFaces.push_back(aSubMesh);
1585 MapShapeNbElemsItr anIt = aResMap.find(meshFaces[i-1]);
1586 if( anIt==aResMap.end() )
1587 return toSM( error( "Submesh can not be evaluated"));
1589 std::vector<int> aVec = (*anIt).second;
1590 int nbtri = Max(aVec[SMDSEntity_Triangle],aVec[SMDSEntity_Quad_Triangle]);
1591 int nbqua = Max(aVec[SMDSEntity_Quadrangle],aVec[SMDSEntity_Quad_Quadrangle]);
1592 if( nbtri==0 && nbqua>0 ) {
1601 std::vector<int> aResVec(SMDSEntity_Last);
1602 for(int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aResVec[i] = 0;
1603 SMESH_subMesh * sm = theMesh.GetSubMesh(theShape);
1604 aResMap.insert(std::make_pair(sm,aResVec));
1605 return toSM( error( "Submesh can not be evaluated" ));
1608 if(NumBase==0) NumBase = 1; // only quads => set 1 faces as base
1610 // find number of 1d elems for base face
1612 TopTools_MapOfShape Edges1;
1613 for (TopExp_Explorer exp(aFaces.Value(NumBase), TopAbs_EDGE); exp.More(); exp.Next()) {
1614 Edges1.Add(exp.Current());
1615 SMESH_subMesh *sm = theMesh.GetSubMesh(exp.Current());
1617 MapShapeNbElemsItr anIt = aResMap.find(sm);
1618 if( anIt == aResMap.end() ) continue;
1619 std::vector<int> aVec = (*anIt).second;
1620 nb1d += Max(aVec[SMDSEntity_Edge],aVec[SMDSEntity_Quad_Edge]);
1623 // find face opposite to base face
1625 for(i=1; i<=6; i++) {
1626 if(i==NumBase) continue;
1627 bool IsOpposite = true;
1628 for(TopExp_Explorer exp(aFaces.Value(i), TopAbs_EDGE); exp.More(); exp.Next()) {
1629 if( Edges1.Contains(exp.Current()) ) {
1639 // find number of 2d elems on side faces
1641 for(i=1; i<=6; i++) {
1642 if( i==OppNum || i==NumBase ) continue;
1643 MapShapeNbElemsItr anIt = aResMap.find( meshFaces[i-1] );
1644 if( anIt == aResMap.end() ) continue;
1645 std::vector<int> aVec = (*anIt).second;
1646 nb2d += Max(aVec[SMDSEntity_Quadrangle],aVec[SMDSEntity_Quad_Quadrangle]);
1649 MapShapeNbElemsItr anIt = aResMap.find( meshFaces[NumBase-1] );
1650 std::vector<int> aVec = (*anIt).second;
1651 bool IsQuadratic = (aVec[SMDSEntity_Quad_Triangle]>aVec[SMDSEntity_Triangle]) ||
1652 (aVec[SMDSEntity_Quad_Quadrangle]>aVec[SMDSEntity_Quadrangle]);
1653 int nb2d_face0_3 = Max(aVec[SMDSEntity_Triangle],aVec[SMDSEntity_Quad_Triangle]);
1654 int nb2d_face0_4 = Max(aVec[SMDSEntity_Quadrangle],aVec[SMDSEntity_Quad_Quadrangle]);
1655 int nb0d_face0 = aVec[SMDSEntity_Node];
1656 int nb1d_face0_int = ( nb2d_face0_3*3 + nb2d_face0_4*4 - nb1d ) / 2;
1658 std::vector<int> aResVec(SMDSEntity_Last);
1659 for(int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aResVec[i] = 0;
1661 aResVec[SMDSEntity_Quad_Penta] = nb2d_face0_3 * ( nb2d/nb1d );
1662 aResVec[SMDSEntity_Quad_Hexa] = nb2d_face0_4 * ( nb2d/nb1d );
1663 aResVec[SMDSEntity_Node] = nb0d_face0 * ( 2*nb2d/nb1d - 1 ) - nb1d_face0_int * nb2d/nb1d;
1666 aResVec[SMDSEntity_Node] = nb0d_face0 * ( nb2d/nb1d - 1 );
1667 aResVec[SMDSEntity_Penta] = nb2d_face0_3 * ( nb2d/nb1d );
1668 aResVec[SMDSEntity_Hexa] = nb2d_face0_4 * ( nb2d/nb1d );
1670 SMESH_subMesh * sm = theMesh.GetSubMesh(theShape);
1671 aResMap.insert(std::make_pair(sm,aResVec));
1676 //================================================================================
1678 * \brief Create prisms
1679 * \param columns - columns of nodes generated from nodes of a mesh face
1680 * \param helper - helper initialized by mesh and shape to add prisms to
1682 //================================================================================
1684 void StdMeshers_Prism_3D::AddPrisms( vector<const TNodeColumn*> & columns,
1685 SMESH_MesherHelper* helper)
1687 int nbNodes = columns.size();
1688 int nbZ = columns[0]->size();
1689 if ( nbZ < 2 ) return;
1691 // find out orientation
1692 bool isForward = true;
1693 SMDS_VolumeTool vTool;
1695 switch ( nbNodes ) {
1697 SMDS_VolumeOfNodes tmpPenta ( (*columns[0])[z-1], // bottom
1700 (*columns[0])[z], // top
1703 vTool.Set( &tmpPenta );
1704 isForward = vTool.IsForward();
1708 SMDS_VolumeOfNodes tmpHex( (*columns[0])[z-1], (*columns[1])[z-1], // bottom
1709 (*columns[2])[z-1], (*columns[3])[z-1],
1710 (*columns[0])[z], (*columns[1])[z], // top
1711 (*columns[2])[z], (*columns[3])[z] );
1712 vTool.Set( &tmpHex );
1713 isForward = vTool.IsForward();
1717 const int di = (nbNodes+1) / 3;
1718 SMDS_VolumeOfNodes tmpVol ( (*columns[0] )[z-1],
1719 (*columns[di] )[z-1],
1720 (*columns[2*di])[z-1],
1723 (*columns[2*di])[z] );
1724 vTool.Set( &tmpVol );
1725 isForward = vTool.IsForward();
1728 // vertical loop on columns
1730 helper->SetElementsOnShape( true );
1732 switch ( nbNodes ) {
1734 case 3: { // ---------- pentahedra
1735 const int i1 = isForward ? 1 : 2;
1736 const int i2 = isForward ? 2 : 1;
1737 for ( z = 1; z < nbZ; ++z )
1738 helper->AddVolume( (*columns[0 ])[z-1], // bottom
1739 (*columns[i1])[z-1],
1740 (*columns[i2])[z-1],
1741 (*columns[0 ])[z], // top
1743 (*columns[i2])[z] );
1746 case 4: { // ---------- hexahedra
1747 const int i1 = isForward ? 1 : 3;
1748 const int i3 = isForward ? 3 : 1;
1749 for ( z = 1; z < nbZ; ++z )
1750 helper->AddVolume( (*columns[0])[z-1], (*columns[i1])[z-1], // bottom
1751 (*columns[2])[z-1], (*columns[i3])[z-1],
1752 (*columns[0])[z], (*columns[i1])[z], // top
1753 (*columns[2])[z], (*columns[i3])[z] );
1756 case 6: { // ---------- octahedra
1757 const int iBase1 = isForward ? -1 : 0;
1758 const int iBase2 = isForward ? 0 :-1;
1759 for ( z = 1; z < nbZ; ++z )
1760 helper->AddVolume( (*columns[0])[z+iBase1], (*columns[1])[z+iBase1], // bottom or top
1761 (*columns[2])[z+iBase1], (*columns[3])[z+iBase1],
1762 (*columns[4])[z+iBase1], (*columns[5])[z+iBase1],
1763 (*columns[0])[z+iBase2], (*columns[1])[z+iBase2], // top or bottom
1764 (*columns[2])[z+iBase2], (*columns[3])[z+iBase2],
1765 (*columns[4])[z+iBase2], (*columns[5])[z+iBase2] );
1768 default: // ---------- polyhedra
1769 vector<int> quantities( 2 + nbNodes, 4 );
1770 quantities[0] = quantities[1] = nbNodes;
1771 columns.resize( nbNodes + 1 );
1772 columns[ nbNodes ] = columns[ 0 ];
1773 const int i1 = isForward ? 1 : 3;
1774 const int i3 = isForward ? 3 : 1;
1775 const int iBase1 = isForward ? -1 : 0;
1776 const int iBase2 = isForward ? 0 :-1;
1777 vector<const SMDS_MeshNode*> nodes( 2*nbNodes + 4*nbNodes);
1778 for ( z = 1; z < nbZ; ++z )
1780 for ( int i = 0; i < nbNodes; ++i ) {
1781 nodes[ i ] = (*columns[ i ])[z+iBase1]; // bottom or top
1782 nodes[ 2*nbNodes-i-1 ] = (*columns[ i ])[z+iBase2]; // top or bottom
1784 int di = 2*nbNodes + 4*i;
1785 nodes[ di+0 ] = (*columns[i ])[z ];
1786 nodes[ di+i1] = (*columns[i+1])[z ];
1787 nodes[ di+2 ] = (*columns[i+1])[z-1];
1788 nodes[ di+i3] = (*columns[i ])[z-1];
1790 helper->AddPolyhedralVolume( nodes, quantities );
1793 } // switch ( nbNodes )
1796 //================================================================================
1798 * \brief Find correspondence between bottom and top nodes
1799 * If elements on the bottom and top faces are topologically different,
1800 * and projection is possible and allowed, perform the projection
1801 * \retval bool - is a success or not
1803 //================================================================================
1805 bool StdMeshers_Prism_3D::assocOrProjBottom2Top( const gp_Trsf & bottomToTopTrsf )
1807 SMESH_subMesh * botSM = myBlock.SubMesh( ID_BOT_FACE );
1808 SMESH_subMesh * topSM = myBlock.SubMesh( ID_TOP_FACE );
1810 SMESHDS_SubMesh * botSMDS = botSM->GetSubMeshDS();
1811 SMESHDS_SubMesh * topSMDS = topSM->GetSubMeshDS();
1813 if ( !botSMDS || botSMDS->NbElements() == 0 )
1815 _gen->Compute( *myHelper->GetMesh(), botSM->GetSubShape() );
1816 botSMDS = botSM->GetSubMeshDS();
1817 if ( !botSMDS || botSMDS->NbElements() == 0 )
1818 return toSM( error(TCom("No elements on face #") << botSM->GetId() ));
1821 bool needProject = !topSM->IsMeshComputed();
1822 if ( !needProject &&
1823 (botSMDS->NbElements() != topSMDS->NbElements() ||
1824 botSMDS->NbNodes() != topSMDS->NbNodes()))
1826 MESSAGE("nb elem bot " << botSMDS->NbElements() <<
1827 " top " << ( topSMDS ? topSMDS->NbElements() : 0 ));
1828 MESSAGE("nb node bot " << botSMDS->NbNodes() <<
1829 " top " << ( topSMDS ? topSMDS->NbNodes() : 0 ));
1830 return toSM( error(TCom("Mesh on faces #") << botSM->GetId()
1831 <<" and #"<< topSM->GetId() << " seems different" ));
1834 if ( 0/*needProject && !myProjectTriangles*/ )
1835 return toSM( error(TCom("Mesh on faces #") << botSM->GetId()
1836 <<" and #"<< topSM->GetId() << " seems different" ));
1837 ///RETURN_BAD_RESULT("Need to project but not allowed");
1841 return projectBottomToTop( bottomToTopTrsf );
1844 TopoDS_Face botFace = TopoDS::Face( myBlock.Shape( ID_BOT_FACE ));
1845 TopoDS_Face topFace = TopoDS::Face( myBlock.Shape( ID_TOP_FACE ));
1846 // associate top and bottom faces
1847 TAssocTool::TShapeShapeMap shape2ShapeMap;
1848 if ( !TAssocTool::FindSubShapeAssociation( botFace, myBlock.Mesh(),
1849 topFace, myBlock.Mesh(),
1851 return toSM( error(TCom("Topology of faces #") << botSM->GetId()
1852 <<" and #"<< topSM->GetId() << " seems different" ));
1854 // Find matching nodes of top and bottom faces
1855 TNodeNodeMap n2nMap;
1856 if ( ! TAssocTool::FindMatchingNodesOnFaces( botFace, myBlock.Mesh(),
1857 topFace, myBlock.Mesh(),
1858 shape2ShapeMap, n2nMap ))
1859 return toSM( error(TCom("Mesh on faces #") << botSM->GetId()
1860 <<" and #"<< topSM->GetId() << " seems different" ));
1862 // Fill myBotToColumnMap
1864 int zSize = myBlock.VerticalSize();
1866 TNodeNodeMap::iterator bN_tN = n2nMap.begin();
1867 for ( ; bN_tN != n2nMap.end(); ++bN_tN )
1869 const SMDS_MeshNode* botNode = bN_tN->first;
1870 const SMDS_MeshNode* topNode = bN_tN->second;
1871 if ( botNode->GetPosition()->GetTypeOfPosition() != SMDS_TOP_FACE )
1872 continue; // wall columns are contained in myBlock
1873 // create node column
1874 Prism_3D::TNode bN( botNode );
1875 TNode2ColumnMap::iterator bN_col =
1876 myBotToColumnMap.insert( make_pair ( bN, TNodeColumn() )).first;
1877 TNodeColumn & column = bN_col->second;
1878 column.resize( zSize );
1879 column.front() = botNode;
1880 column.back() = topNode;
1885 //================================================================================
1887 * \brief Remove quadrangles from the top face and
1888 * create triangles there by projection from the bottom
1889 * \retval bool - a success or not
1891 //================================================================================
1893 bool StdMeshers_Prism_3D::projectBottomToTop( const gp_Trsf & bottomToTopTrsf )
1895 SMESHDS_Mesh* meshDS = myBlock.MeshDS();
1896 SMESH_subMesh * botSM = myBlock.SubMesh( ID_BOT_FACE );
1897 SMESH_subMesh * topSM = myBlock.SubMesh( ID_TOP_FACE );
1899 SMESHDS_SubMesh * botSMDS = botSM->GetSubMeshDS();
1900 SMESHDS_SubMesh * topSMDS = topSM->GetSubMeshDS();
1902 if ( topSMDS && topSMDS->NbElements() > 0 )
1903 topSM->ComputeStateEngine( SMESH_subMesh::CLEAN );
1905 const TopoDS_Face& botFace = TopoDS::Face( myBlock.Shape( ID_BOT_FACE )); // oriented within
1906 const TopoDS_Face& topFace = TopoDS::Face( myBlock.Shape( ID_TOP_FACE )); // the 3D SHAPE
1907 int topFaceID = meshDS->ShapeToIndex( topFace );
1909 SMESH_MesherHelper botHelper( *myHelper->GetMesh() );
1910 botHelper.SetSubShape( botFace );
1911 botHelper.ToFixNodeParameters( true );
1913 SMESH_MesherHelper topHelper( *myHelper->GetMesh() );
1914 topHelper.SetSubShape( topFace );
1915 topHelper.ToFixNodeParameters( true );
1916 double distXYZ[4], fixTol = 10 * topHelper.MaxTolerance( topFace );
1918 // Fill myBotToColumnMap
1920 int zSize = myBlock.VerticalSize();
1921 Prism_3D::TNode prevTNode;
1922 SMDS_NodeIteratorPtr nIt = botSMDS->GetNodes();
1923 while ( nIt->more() )
1925 const SMDS_MeshNode* botNode = nIt->next();
1926 const SMDS_MeshNode* topNode = 0;
1927 if ( botNode->GetPosition()->GetTypeOfPosition() != SMDS_TOP_FACE )
1928 continue; // strange
1930 Prism_3D::TNode bN( botNode );
1931 if ( bottomToTopTrsf.Form() == gp_Identity )
1933 // compute bottom node params
1934 gp_XYZ paramHint(-1,-1,-1);
1935 if ( prevTNode.IsNeighbor( bN ))
1937 paramHint = prevTNode.GetParams();
1938 // double tol = 1e-2 * ( prevTNode.GetCoords() - bN.GetCoords() ).Modulus();
1939 // myBlock.SetTolerance( Min( myBlock.GetTolerance(), tol ));
1941 if ( !myBlock.ComputeParameters( bN.GetCoords(), bN.ChangeParams(),
1942 ID_BOT_FACE, paramHint ))
1943 return toSM( error(TCom("Can't compute normalized parameters for node ")
1944 << botNode->GetID() << " on the face #"<< botSM->GetId() ));
1946 // compute top node coords
1947 gp_XYZ topXYZ; gp_XY topUV;
1948 if ( !myBlock.FacePoint( ID_TOP_FACE, bN.GetParams(), topXYZ ) ||
1949 !myBlock.FaceUV ( ID_TOP_FACE, bN.GetParams(), topUV ))
1950 return toSM( error(TCom("Can't compute coordinates "
1951 "by normalized parameters on the face #")<< topSM->GetId() ));
1952 topNode = meshDS->AddNode( topXYZ.X(),topXYZ.Y(),topXYZ.Z() );
1953 meshDS->SetNodeOnFace( topNode, topFaceID, topUV.X(), topUV.Y() );
1955 else // use bottomToTopTrsf
1957 gp_XYZ coords = bN.GetCoords();
1958 bottomToTopTrsf.Transforms( coords );
1959 topNode = meshDS->AddNode( coords.X(), coords.Y(), coords.Z() );
1960 gp_XY topUV = botHelper.GetNodeUV( botFace, botNode, 0, &checkUV );
1961 meshDS->SetNodeOnFace( topNode, topFaceID, topUV.X(), topUV.Y() );
1963 if ( topHelper.CheckNodeUV( topFace, topNode, topUV, fixTol, /*force=*/false, distXYZ ) &&
1964 distXYZ[0] > fixTol && distXYZ[0] < fixTol * 1e+3 )
1965 meshDS->MoveNode( topNode, distXYZ[1], distXYZ[2], distXYZ[3] ); // transform can be inaccurate
1967 // create node column
1968 TNode2ColumnMap::iterator bN_col =
1969 myBotToColumnMap.insert( make_pair ( bN, TNodeColumn() )).first;
1970 TNodeColumn & column = bN_col->second;
1971 column.resize( zSize );
1972 column.front() = botNode;
1973 column.back() = topNode;
1978 const bool oldSetElemsOnShape = myHelper->SetElementsOnShape( false );
1980 // care of orientation;
1981 // if the bottom faces is orienetd OK then top faces must be reversed
1982 bool reverseTop = true;
1983 if ( myHelper->NbAncestors( botFace, *myBlock.Mesh(), TopAbs_SOLID ) > 1 )
1984 reverseTop = ! myHelper->IsReversedSubMesh( botFace );
1985 int iFrw, iRev, *iPtr = &( reverseTop ? iRev : iFrw );
1987 // loop on bottom mesh faces
1988 SMDS_ElemIteratorPtr faceIt = botSMDS->GetElements();
1989 vector< const SMDS_MeshNode* > nodes;
1990 while ( faceIt->more() )
1992 const SMDS_MeshElement* face = faceIt->next();
1993 if ( !face || face->GetType() != SMDSAbs_Face )
1996 // find top node in columns for each bottom node
1997 int nbNodes = face->NbCornerNodes();
1998 nodes.resize( nbNodes );
1999 for ( iFrw = 0, iRev = nbNodes-1; iFrw < nbNodes; ++iFrw, --iRev )
2001 const SMDS_MeshNode* n = face->GetNode( *iPtr );
2002 if ( n->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE ) {
2003 TNode2ColumnMap::iterator bot_column = myBotToColumnMap.find( n );
2004 if ( bot_column == myBotToColumnMap.end() )
2005 return toSM( error(TCom("No nodes found above node ") << n->GetID() ));
2006 nodes[ iFrw ] = bot_column->second.back();
2009 const TNodeColumn* column = myBlock.GetNodeColumn( n );
2011 return toSM( error(TCom("No side nodes found above node ") << n->GetID() ));
2012 nodes[ iFrw ] = column->back();
2015 SMDS_MeshElement* newFace = 0;
2016 switch ( nbNodes ) {
2019 newFace = myHelper->AddFace(nodes[0], nodes[1], nodes[2]);
2023 newFace = myHelper->AddFace( nodes[0], nodes[1], nodes[2], nodes[3] );
2027 newFace = meshDS->AddPolygonalFace( nodes );
2030 meshDS->SetMeshElementOnShape( newFace, topFaceID );
2033 myHelper->SetElementsOnShape( oldSetElemsOnShape );
2038 //=======================================================================
2039 //function : project2dMesh
2040 //purpose : Project mesh faces from a source FACE of one prism (theSrcFace)
2041 // to a source FACE of another prism (theTgtFace)
2042 //=======================================================================
2044 bool StdMeshers_Prism_3D::project2dMesh(const TopoDS_Face& theSrcFace,
2045 const TopoDS_Face& theTgtFace)
2047 TProjction2dAlgo* projector2D = TProjction2dAlgo::instance( this );
2048 projector2D->myHyp.SetSourceFace( theSrcFace );
2049 bool ok = projector2D->Compute( *myHelper->GetMesh(), theTgtFace );
2051 SMESH_subMesh* tgtSM = myHelper->GetMesh()->GetSubMesh( theTgtFace );
2052 tgtSM->ComputeStateEngine ( SMESH_subMesh::CHECK_COMPUTE_STATE );
2053 tgtSM->ComputeSubMeshStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
2058 //================================================================================
2060 * \brief Set projection coordinates of a node to a face and it's sub-shapes
2061 * \param faceID - the face given by in-block ID
2062 * \param params - node normalized parameters
2063 * \retval bool - is a success
2065 //================================================================================
2067 bool StdMeshers_Prism_3D::setFaceAndEdgesXYZ( const int faceID, const gp_XYZ& params, int z )
2069 // find base and top edges of the face
2070 enum { BASE = 0, TOP, LEFT, RIGHT };
2071 vector< int > edgeVec; // 0-base, 1-top
2072 SMESH_Block::GetFaceEdgesIDs( faceID, edgeVec );
2074 myBlock.EdgePoint( edgeVec[ BASE ], params, myShapeXYZ[ edgeVec[ BASE ]]);
2075 myBlock.EdgePoint( edgeVec[ TOP ], params, myShapeXYZ[ edgeVec[ TOP ]]);
2077 SHOWYXZ("\nparams ", params);
2078 SHOWYXZ("TOP is " <<edgeVec[ TOP ], myShapeXYZ[ edgeVec[ TOP]]);
2079 SHOWYXZ("BASE is "<<edgeVec[ BASE], myShapeXYZ[ edgeVec[ BASE]]);
2081 if ( faceID == SMESH_Block::ID_Fx0z || faceID == SMESH_Block::ID_Fx1z )
2083 myBlock.EdgePoint( edgeVec[ LEFT ], params, myShapeXYZ[ edgeVec[ LEFT ]]);
2084 myBlock.EdgePoint( edgeVec[ RIGHT ], params, myShapeXYZ[ edgeVec[ RIGHT ]]);
2086 SHOWYXZ("VER "<<edgeVec[ LEFT], myShapeXYZ[ edgeVec[ LEFT]]);
2087 SHOWYXZ("VER "<<edgeVec[ RIGHT], myShapeXYZ[ edgeVec[ RIGHT]]);
2089 myBlock.FacePoint( faceID, params, myShapeXYZ[ faceID ]);
2090 SHOWYXZ("FacePoint "<<faceID, myShapeXYZ[ faceID]);
2095 //=======================================================================
2097 //purpose : If (!isOK), sets the error to a sub-mesh of a current SOLID
2098 //=======================================================================
2100 bool StdMeshers_Prism_3D::toSM( bool isOK )
2102 if ( mySetErrorToSM &&
2105 !myHelper->GetSubShape().IsNull() &&
2106 myHelper->GetSubShape().ShapeType() == TopAbs_SOLID)
2108 SMESH_subMesh* sm = myHelper->GetMesh()->GetSubMesh( myHelper->GetSubShape() );
2109 sm->GetComputeError() = this->GetComputeError();
2110 // clear error in order not to return it twice
2111 _error = COMPERR_OK;
2117 //=======================================================================
2118 //function : shapeID
2119 //purpose : Return index of a shape
2120 //=======================================================================
2122 int StdMeshers_Prism_3D::shapeID( const TopoDS_Shape& S )
2124 if ( S.IsNull() ) return 0;
2125 if ( !myHelper ) return -3;
2126 return myHelper->GetMeshDS()->ShapeToIndex( S );
2129 namespace // utils used by StdMeshers_Prism_3D::IsApplicable()
2131 struct EdgeWithNeighbors
2135 EdgeWithNeighbors(const TopoDS_Edge& E, int iE, int nbE, int shift = 0 ):
2137 _iL( SMESH_MesherHelper::WrapIndex( iE-1, nbE ) + shift ),
2138 _iR( SMESH_MesherHelper::WrapIndex( iE+1, nbE ) + shift )
2141 EdgeWithNeighbors() {}
2146 TopTools_IndexedMapOfShape *_faces; // pointer because its copy constructor is private
2147 TopoDS_Edge _topEdge;
2148 vector< EdgeWithNeighbors >*_edges;
2150 vector< bool > _isCheckedEdge;
2151 int _nbCheckedEdges; // nb of EDGEs whose location is defined
2152 PrismSide *_leftSide;
2153 PrismSide *_rightSide;
2154 const TopoDS_Edge& Edge( int i ) const
2156 return (*_edges)[ i ]._edge;
2158 int FindEdge( const TopoDS_Edge& E ) const
2160 for ( size_t i = 0; i < _edges->size(); ++i )
2161 if ( E.IsSame( Edge( i ))) return i;
2165 //--------------------------------------------------------------------------------
2167 * \brief Return ordered edges of a face
2169 bool getEdges( const TopoDS_Face& face,
2170 vector< EdgeWithNeighbors > & edges,
2171 const bool noHolesAllowed)
2173 list< TopoDS_Edge > ee;
2174 list< int > nbEdgesInWires;
2175 int nbW = SMESH_Block::GetOrderedEdges( face, ee, nbEdgesInWires );
2176 if ( nbW > 1 && noHolesAllowed )
2180 list< TopoDS_Edge >::iterator e = ee.begin();
2181 list< int >::iterator nbE = nbEdgesInWires.begin();
2182 for ( ; nbE != nbEdgesInWires.end(); ++nbE )
2183 for ( iE = 0; iE < *nbE; ++e, ++iE )
2184 if ( SMESH_Algo::isDegenerated( *e ))
2192 e->Orientation( TopAbs_FORWARD ); // for operator==() to work
2197 for ( nbE = nbEdgesInWires.begin(); nbE != nbEdgesInWires.end(); ++nbE )
2199 for ( iE = 0; iE < *nbE; ++e, ++iE )
2200 edges.push_back( EdgeWithNeighbors( *e, iE, *nbE, nbTot ));
2203 return edges.size();
2205 //--------------------------------------------------------------------------------
2207 * \brief Return another faces sharing an edge
2209 const TopoDS_Shape & getAnotherFace( const TopoDS_Face& face,
2210 const TopoDS_Edge& edge,
2211 TopTools_IndexedDataMapOfShapeListOfShape& facesOfEdge)
2213 TopTools_ListIteratorOfListOfShape faceIt( facesOfEdge.FindFromKey( edge ));
2214 for ( ; faceIt.More(); faceIt.Next() )
2215 if ( !face.IsSame( faceIt.Value() ))
2216 return faceIt.Value();
2221 //================================================================================
2223 * \brief Return true if the algorithm can mesh this shape
2224 * \param [in] aShape - shape to check
2225 * \param [in] toCheckAll - if true, this check returns OK if all shapes are OK,
2226 * else, returns OK if at least one shape is OK
2228 //================================================================================
2230 bool StdMeshers_Prism_3D::IsApplicable(const TopoDS_Shape & shape, bool toCheckAll)
2232 TopExp_Explorer sExp( shape, TopAbs_SOLID );
2236 for ( ; sExp.More(); sExp.Next() )
2240 TopExp_Explorer shExp( sExp.Current(), TopAbs_SHELL );
2241 if ( shExp.More() ) {
2242 shell = shExp.Current();
2247 if ( shell.IsNull() ) {
2248 if ( toCheckAll ) return false;
2252 TopTools_IndexedMapOfShape allFaces;
2253 TopExp::MapShapes( shell, TopAbs_FACE, allFaces );
2254 if ( allFaces.Extent() < 3 ) {
2255 if ( toCheckAll ) return false;
2259 if ( allFaces.Extent() == 6 )
2261 TopTools_IndexedMapOfOrientedShape map;
2262 bool isBox = SMESH_Block::FindBlockShapes( TopoDS::Shell( shell ),
2263 TopoDS_Vertex(), TopoDS_Vertex(), map );
2265 if ( !toCheckAll ) return true;
2270 TopTools_IndexedMapOfShape allShapes;
2271 TopExp::MapShapes( shape, allShapes );
2274 TopTools_IndexedDataMapOfShapeListOfShape facesOfEdge;
2275 TopTools_ListIteratorOfListOfShape faceIt;
2276 TopExp::MapShapesAndAncestors( sExp.Current(), TopAbs_EDGE, TopAbs_FACE , facesOfEdge );
2277 if ( facesOfEdge.IsEmpty() ) {
2278 if ( toCheckAll ) return false;
2282 typedef vector< EdgeWithNeighbors > TEdgeWithNeighborsVec;
2283 vector< TEdgeWithNeighborsVec > faceEdgesVec( allFaces.Extent() + 1 );
2284 TopTools_IndexedMapOfShape* facesOfSide = new TopTools_IndexedMapOfShape[ faceEdgesVec.size() ];
2285 SMESHUtils::ArrayDeleter<TopTools_IndexedMapOfShape> delFacesOfSide( facesOfSide );
2287 // try to use each face as a bottom one
2288 bool prismDetected = false;
2289 for ( int iF = 1; iF < allFaces.Extent() && !prismDetected; ++iF )
2291 const TopoDS_Face& botF = TopoDS::Face( allFaces( iF ));
2293 TEdgeWithNeighborsVec& botEdges = faceEdgesVec[ iF ];
2294 if ( botEdges.empty() )
2296 if ( !getEdges( botF, botEdges, /*noHoles=*/false ))
2298 if ( allFaces.Extent()-1 <= (int) botEdges.size() )
2299 continue; // all faces are adjacent to botF - no top FACE
2301 // init data of side FACEs
2302 vector< PrismSide > sides( botEdges.size() );
2303 for ( int iS = 0; iS < botEdges.size(); ++iS )
2305 sides[ iS ]._topEdge = botEdges[ iS ]._edge;
2306 sides[ iS ]._face = botF;
2307 sides[ iS ]._leftSide = & sides[ botEdges[ iS ]._iR ];
2308 sides[ iS ]._rightSide = & sides[ botEdges[ iS ]._iL ];
2309 sides[ iS ]._faces = & facesOfSide[ iS ];
2310 sides[ iS ]._faces->Clear();
2313 bool isOK = true; // ok for a current botF
2314 bool isAdvanced = true;
2315 int nbFoundSideFaces = 0;
2316 for ( int iLoop = 0; isOK && isAdvanced; ++iLoop )
2319 for ( size_t iS = 0; iS < sides.size() && isOK; ++iS )
2321 PrismSide& side = sides[ iS ];
2322 if ( side._face.IsNull() )
2324 if ( side._topEdge.IsNull() )
2326 // find vertical EDGEs --- EGDEs shared with neighbor side FACEs
2327 for ( int is2nd = 0; is2nd < 2 && isOK; ++is2nd ) // 2 adjacent neighbors
2329 int di = is2nd ? 1 : -1;
2330 const PrismSide* adjSide = is2nd ? side._rightSide : side._leftSide;
2331 for ( size_t i = 1; i < side._edges->size(); ++i )
2333 int iE = SMESH_MesherHelper::WrapIndex( i*di + side._iBotEdge, side._edges->size());
2334 if ( side._isCheckedEdge[ iE ] ) continue;
2335 const TopoDS_Edge& vertE = side.Edge( iE );
2336 const TopoDS_Shape& neighborF = getAnotherFace( side._face, vertE, facesOfEdge );
2337 bool isEdgeShared = adjSide->_faces->Contains( neighborF );
2341 side._isCheckedEdge[ iE ] = true;
2342 side._nbCheckedEdges++;
2343 int nbNotCheckedE = side._edges->size() - side._nbCheckedEdges;
2344 if ( nbNotCheckedE == 1 )
2349 if ( i == 1 && iLoop == 0 ) isOK = false;
2355 int nbNotCheckedE = side._edges->size() - side._nbCheckedEdges;
2356 if ( nbNotCheckedE == 1 )
2358 vector<bool>::iterator ii = std::find( side._isCheckedEdge.begin(),
2359 side._isCheckedEdge.end(), false );
2360 if ( ii != side._isCheckedEdge.end() )
2362 size_t iE = std::distance( side._isCheckedEdge.begin(), ii );
2363 side._topEdge = side.Edge( iE );
2366 isOK = ( nbNotCheckedE >= 1 );
2368 else //if ( !side._topEdge.IsNull() )
2370 // get a next face of a side
2371 const TopoDS_Shape& f = getAnotherFace( side._face, side._topEdge, facesOfEdge );
2372 side._faces->Add( f );
2374 if ( f.IsSame( side._face ) || // _topEdge is a seam
2375 SMESH_MesherHelper::Count( f, TopAbs_WIRE, false ) != 1 )
2379 else if ( side._leftSide != & side ) // not closed side face
2381 if ( side._leftSide->_faces->Contains( f ))
2384 side._leftSide->_face.Nullify();
2385 side._leftSide->_topEdge.Nullify();
2387 if ( side._rightSide->_faces->Contains( f ))
2390 side._rightSide->_face.Nullify();
2391 side._rightSide->_topEdge.Nullify();
2396 side._face.Nullify();
2397 side._topEdge.Nullify();
2400 side._face = TopoDS::Face( f );
2401 int faceID = allFaces.FindIndex( side._face );
2402 side._edges = & faceEdgesVec[ faceID ];
2403 if ( side._edges->empty() )
2404 if ( !getEdges( side._face, * side._edges, /*noHoles=*/true ))
2406 const int nbE = side._edges->size();
2411 side._iBotEdge = side.FindEdge( side._topEdge );
2412 side._isCheckedEdge.clear();
2413 side._isCheckedEdge.resize( nbE, false );
2414 side._isCheckedEdge[ side._iBotEdge ] = true;
2415 side._nbCheckedEdges = 1; // bottom EDGE is known
2417 side._topEdge.Nullify();
2418 isOK = ( !side._edges->empty() || side._faces->Extent() > 1 );
2420 } //if ( !side._topEdge.IsNull() )
2422 } // loop on prism sides
2424 if ( nbFoundSideFaces > allFaces.Extent() )
2428 if ( iLoop > allFaces.Extent() * 10 )
2432 cerr << "BUG: infinite loop in StdMeshers_Prism_3D::IsApplicable()" << endl;
2435 } // while isAdvanced
2437 if ( isOK && sides[0]._faces->Extent() > 1 )
2439 const int nbFaces = sides[0]._faces->Extent();
2440 if ( botEdges.size() == 1 ) // cylinder
2442 prismDetected = ( nbFaces == allFaces.Extent()-1 );
2446 const TopoDS_Shape& topFace = sides[0]._faces->FindKey( nbFaces );
2448 for ( iS = 1; iS < sides.size(); ++iS )
2449 if ( !sides[ iS ]._faces->Contains( topFace ))
2451 prismDetected = ( iS == sides.size() );
2454 } // loop on allFaces
2456 if ( !prismDetected && toCheckAll ) return false;
2457 if ( prismDetected && !toCheckAll ) return true;
2466 //================================================================================
2468 * \brief Return true if this node and other one belong to one face
2470 //================================================================================
2472 bool Prism_3D::TNode::IsNeighbor( const Prism_3D::TNode& other ) const
2474 if ( !other.myNode || !myNode ) return false;
2476 SMDS_ElemIteratorPtr fIt = other.myNode->GetInverseElementIterator(SMDSAbs_Face);
2477 while ( fIt->more() )
2478 if ( fIt->next()->GetNodeIndex( myNode ) >= 0 )
2483 //================================================================================
2485 * \brief Prism initialization
2487 //================================================================================
2489 void TPrismTopo::Clear()
2491 myShape3D.Nullify();
2494 myWallQuads.clear();
2495 myBottomEdges.clear();
2496 myNbEdgesInWires.clear();
2497 myWallQuads.clear();
2500 } // namespace Prism_3D
2502 //================================================================================
2504 * \brief Constructor. Initialization is needed
2506 //================================================================================
2508 StdMeshers_PrismAsBlock::StdMeshers_PrismAsBlock()
2513 StdMeshers_PrismAsBlock::~StdMeshers_PrismAsBlock()
2517 void StdMeshers_PrismAsBlock::Clear()
2520 myShapeIDMap.Clear();
2524 delete mySide; mySide = 0;
2526 myParam2ColumnMaps.clear();
2527 myShapeIndex2ColumnMap.clear();
2530 //=======================================================================
2531 //function : initPrism
2532 //purpose : Analyse shape geometry and mesh.
2533 // If there are triangles on one of faces, it becomes 'bottom'.
2534 // thePrism.myBottom can be already set up.
2535 //=======================================================================
2537 bool StdMeshers_Prism_3D::initPrism(Prism_3D::TPrismTopo& thePrism,
2538 const TopoDS_Shape& shape3D)
2540 myHelper->SetSubShape( shape3D );
2542 SMESH_subMesh* mainSubMesh = myHelper->GetMesh()->GetSubMeshContaining( shape3D );
2543 if ( !mainSubMesh ) return toSM( error(COMPERR_BAD_INPUT_MESH,"Null submesh of shape3D"));
2545 // detect not-quad FACE sub-meshes of the 3D SHAPE
2546 list< SMESH_subMesh* > notQuadGeomSubMesh;
2547 list< SMESH_subMesh* > notQuadElemSubMesh;
2550 SMESH_subMesh* anyFaceSM = 0;
2551 SMESH_subMeshIteratorPtr smIt = mainSubMesh->getDependsOnIterator(false,true);
2552 while ( smIt->more() )
2554 SMESH_subMesh* sm = smIt->next();
2555 const TopoDS_Shape& face = sm->GetSubShape();
2556 if ( face.ShapeType() > TopAbs_FACE ) break;
2557 else if ( face.ShapeType() < TopAbs_FACE ) continue;
2561 // is quadrangle FACE?
2562 list< TopoDS_Edge > orderedEdges;
2563 list< int > nbEdgesInWires;
2564 int nbWires = SMESH_Block::GetOrderedEdges( TopoDS::Face( face ), orderedEdges,
2566 if ( nbWires != 1 || nbEdgesInWires.front() != 4 )
2567 notQuadGeomSubMesh.push_back( sm );
2569 // look for not quadrangle mesh elements
2570 if ( SMESHDS_SubMesh* smDS = sm->GetSubMeshDS() )
2571 if ( !myHelper->IsSameElemGeometry( smDS, SMDSGeom_QUADRANGLE ))
2572 notQuadElemSubMesh.push_back( sm );
2575 int nbNotQuadMeshed = notQuadElemSubMesh.size();
2576 int nbNotQuad = notQuadGeomSubMesh.size();
2577 bool hasNotQuad = ( nbNotQuad || nbNotQuadMeshed );
2580 if ( nbNotQuadMeshed > 2 )
2582 return toSM( error(COMPERR_BAD_INPUT_MESH,
2583 TCom("More than 2 faces with not quadrangle elements: ")
2584 <<nbNotQuadMeshed));
2586 if ( nbNotQuad > 2 || !thePrism.myBottom.IsNull() )
2588 // Issue 0020843 - one of side FACEs is quasi-quadrilateral (not 4 EDGEs).
2589 // Remove from notQuadGeomSubMesh faces meshed with regular grid
2590 int nbQuasiQuads = removeQuasiQuads( notQuadGeomSubMesh, myHelper,
2591 TQuadrangleAlgo::instance(this,myHelper) );
2592 nbNotQuad -= nbQuasiQuads;
2593 if ( nbNotQuad > 2 )
2594 return toSM( error(COMPERR_BAD_SHAPE,
2595 TCom("More than 2 not quadrilateral faces: ") <<nbNotQuad));
2596 hasNotQuad = ( nbNotQuad || nbNotQuadMeshed );
2599 // Analyse mesh and topology of FACEs: choose the bottom sub-mesh.
2600 // If there are not quadrangle FACEs, they are top and bottom ones.
2601 // Not quadrangle FACEs must be only on top and bottom.
2603 SMESH_subMesh * botSM = 0;
2604 SMESH_subMesh * topSM = 0;
2606 if ( hasNotQuad ) // can chose a bottom FACE
2608 if ( nbNotQuadMeshed > 0 ) botSM = notQuadElemSubMesh.front();
2609 else botSM = notQuadGeomSubMesh.front();
2610 if ( nbNotQuadMeshed > 1 ) topSM = notQuadElemSubMesh.back();
2611 else if ( nbNotQuad > 1 ) topSM = notQuadGeomSubMesh.back();
2613 if ( topSM == botSM ) {
2614 if ( nbNotQuadMeshed > 1 ) topSM = notQuadElemSubMesh.front();
2615 else topSM = notQuadGeomSubMesh.front();
2618 // detect mesh triangles on wall FACEs
2619 if ( nbNotQuad == 2 && nbNotQuadMeshed > 0 ) {
2621 if ( nbNotQuadMeshed == 1 )
2622 ok = ( find( notQuadGeomSubMesh.begin(),
2623 notQuadGeomSubMesh.end(), botSM ) != notQuadGeomSubMesh.end() );
2625 ok = ( notQuadGeomSubMesh == notQuadElemSubMesh );
2627 return toSM( error(COMPERR_BAD_INPUT_MESH,
2628 "Side face meshed with not quadrangle elements"));
2632 thePrism.myNotQuadOnTop = ( nbNotQuadMeshed > 1 );
2634 // use thePrism.myBottom
2635 if ( !thePrism.myBottom.IsNull() )
2638 if ( ! botSM->GetSubShape().IsSame( thePrism.myBottom )) {
2639 std::swap( botSM, topSM );
2640 if ( !botSM || ! botSM->GetSubShape().IsSame( thePrism.myBottom ))
2641 return toSM( error( COMPERR_BAD_INPUT_MESH,
2642 "Incompatible non-structured sub-meshes"));
2646 botSM = myHelper->GetMesh()->GetSubMesh( thePrism.myBottom );
2649 else if ( !botSM ) // find a proper bottom
2651 // composite walls or not prism shape
2652 for ( TopExp_Explorer f( shape3D, TopAbs_FACE ); f.More(); f.Next() )
2654 int minNbFaces = 2 + myHelper->Count( f.Current(), TopAbs_EDGE, false);
2655 if ( nbFaces >= minNbFaces)
2658 thePrism.myBottom = TopoDS::Face( f.Current() );
2659 if ( initPrism( thePrism, shape3D ))
2662 return toSM( error( COMPERR_BAD_SHAPE ));
2666 // find vertex 000 - the one with smallest coordinates (for easy DEBUG :-)
2668 double minVal = DBL_MAX, minX, val;
2669 for ( TopExp_Explorer exp( botSM->GetSubShape(), TopAbs_VERTEX );
2670 exp.More(); exp.Next() )
2672 const TopoDS_Vertex& v = TopoDS::Vertex( exp.Current() );
2673 gp_Pnt P = BRep_Tool::Pnt( v );
2674 val = P.X() + P.Y() + P.Z();
2675 if ( val < minVal || ( val == minVal && P.X() < minX )) {
2682 thePrism.myShape3D = shape3D;
2683 if ( thePrism.myBottom.IsNull() )
2684 thePrism.myBottom = TopoDS::Face( botSM->GetSubShape() );
2685 thePrism.myBottom.Orientation( myHelper->GetSubShapeOri( shape3D,
2686 thePrism.myBottom ));
2687 // Get ordered bottom edges
2688 TopoDS_Face reverseBottom = // to have order of top EDGEs as in the top FACE
2689 TopoDS::Face( thePrism.myBottom.Reversed() );
2690 SMESH_Block::GetOrderedEdges( reverseBottom,
2691 thePrism.myBottomEdges,
2692 thePrism.myNbEdgesInWires, V000 );
2694 // Get Wall faces corresponding to the ordered bottom edges and the top FACE
2695 if ( !getWallFaces( thePrism, nbFaces ))
2696 return false; //toSM( error(COMPERR_BAD_SHAPE, "Can't find side faces"));
2700 if ( !thePrism.myTop.IsSame( topSM->GetSubShape() ))
2702 (notQuadGeomSubMesh.empty() ? COMPERR_BAD_INPUT_MESH : COMPERR_BAD_SHAPE,
2703 "Non-quadrilateral faces are not opposite"));
2705 // check that the found top and bottom FACEs are opposite
2706 list< TopoDS_Edge >::iterator edge = thePrism.myBottomEdges.begin();
2707 for ( ; edge != thePrism.myBottomEdges.end(); ++edge )
2708 if ( myHelper->IsSubShape( *edge, thePrism.myTop ))
2710 (notQuadGeomSubMesh.empty() ? COMPERR_BAD_INPUT_MESH : COMPERR_BAD_SHAPE,
2711 "Non-quadrilateral faces are not opposite"));
2717 //================================================================================
2719 * \brief Initialization.
2720 * \param helper - helper loaded with mesh and 3D shape
2721 * \param thePrism - a prism data
2722 * \retval bool - false if a mesh or a shape are KO
2724 //================================================================================
2726 bool StdMeshers_PrismAsBlock::Init(SMESH_MesherHelper* helper,
2727 const Prism_3D::TPrismTopo& thePrism)
2730 SMESHDS_Mesh* meshDS = myHelper->GetMeshDS();
2731 SMESH_Mesh* mesh = myHelper->GetMesh();
2734 delete mySide; mySide = 0;
2736 vector< TSideFace* > sideFaces( NB_WALL_FACES, 0 );
2737 vector< pair< double, double> > params( NB_WALL_FACES );
2738 mySide = new TSideFace( *mesh, sideFaces, params );
2741 SMESH_Block::init();
2742 myShapeIDMap.Clear();
2743 myShapeIndex2ColumnMap.clear();
2745 int wallFaceIds[ NB_WALL_FACES ] = { // to walk around a block
2746 SMESH_Block::ID_Fx0z, SMESH_Block::ID_F1yz,
2747 SMESH_Block::ID_Fx1z, SMESH_Block::ID_F0yz
2750 myError = SMESH_ComputeError::New();
2752 myNotQuadOnTop = thePrism.myNotQuadOnTop;
2754 // Find columns of wall nodes and calculate edges' lengths
2755 // --------------------------------------------------------
2757 myParam2ColumnMaps.clear();
2758 myParam2ColumnMaps.resize( thePrism.myBottomEdges.size() ); // total nb edges
2760 size_t iE, nbEdges = thePrism.myNbEdgesInWires.front(); // nb outer edges
2761 vector< double > edgeLength( nbEdges );
2762 multimap< double, int > len2edgeMap;
2764 // for each EDGE: either split into several parts, or join with several next EDGEs
2765 vector<int> nbSplitPerEdge( nbEdges, 0 );
2766 vector<int> nbUnitePerEdge( nbEdges, 0 ); // -1 means "joined to a previous"
2768 // consider continuous straight EDGEs as one side
2769 const int nbSides = countNbSides( thePrism, nbUnitePerEdge, edgeLength );
2771 list< TopoDS_Edge >::const_iterator edgeIt = thePrism.myBottomEdges.begin();
2772 for ( iE = 0; iE < nbEdges; ++iE, ++edgeIt )
2774 TParam2ColumnMap & faceColumns = myParam2ColumnMaps[ iE ];
2776 Prism_3D::TQuadList::const_iterator quad = thePrism.myWallQuads[ iE ].begin();
2777 for ( ; quad != thePrism.myWallQuads[ iE ].end(); ++quad )
2779 const TopoDS_Edge& quadBot = (*quad)->side[ QUAD_BOTTOM_SIDE ].grid->Edge( 0 );
2780 if ( !myHelper->LoadNodeColumns( faceColumns, (*quad)->face, quadBot, meshDS ))
2781 return error(COMPERR_BAD_INPUT_MESH, TCom("Can't find regular quadrangle mesh ")
2782 << "on a side face #" << MeshDS()->ShapeToIndex( (*quad)->face ));
2784 SHOWYXZ("\np1 F " <<iE, gpXYZ(faceColumns.begin()->second.front() ));
2785 SHOWYXZ("p2 F " <<iE, gpXYZ(faceColumns.rbegin()->second.front() ));
2786 SHOWYXZ("V First "<<iE, BRep_Tool::Pnt( TopExp::FirstVertex(*edgeIt,true )));
2788 if ( nbSides < NB_WALL_FACES ) // fill map used to split faces
2789 len2edgeMap.insert( make_pair( edgeLength[ iE ], iE )); // sort edges by length
2791 // Load columns of internal edges (forming holes)
2792 // and fill map ShapeIndex to TParam2ColumnMap for them
2793 for ( ; edgeIt != thePrism.myBottomEdges.end() ; ++edgeIt, ++iE )
2795 TParam2ColumnMap & faceColumns = myParam2ColumnMaps[ iE ];
2797 Prism_3D::TQuadList::const_iterator quad = thePrism.myWallQuads[ iE ].begin();
2798 for ( ; quad != thePrism.myWallQuads[ iE ].end(); ++quad )
2800 const TopoDS_Edge& quadBot = (*quad)->side[ QUAD_BOTTOM_SIDE ].grid->Edge( 0 );
2801 if ( !myHelper->LoadNodeColumns( faceColumns, (*quad)->face, quadBot, meshDS ))
2802 return error(COMPERR_BAD_INPUT_MESH, TCom("Can't find regular quadrangle mesh ")
2803 << "on a side face #" << MeshDS()->ShapeToIndex( (*quad)->face ));
2806 int id = MeshDS()->ShapeToIndex( *edgeIt );
2807 bool isForward = true; // meaningless for intenal wires
2808 myShapeIndex2ColumnMap[ id ] = make_pair( & faceColumns, isForward );
2809 // columns for vertices
2811 const SMDS_MeshNode* n0 = faceColumns.begin()->second.front();
2812 id = n0->getshapeId();
2813 myShapeIndex2ColumnMap[ id ] = make_pair( & faceColumns, isForward );
2815 const SMDS_MeshNode* n1 = faceColumns.rbegin()->second.front();
2816 id = n1->getshapeId();
2817 myShapeIndex2ColumnMap[ id ] = make_pair( & faceColumns, isForward );
2819 // SHOWYXZ("\np1 F " <<iE, gpXYZ(faceColumns.begin()->second.front() ));
2820 // SHOWYXZ("p2 F " <<iE, gpXYZ(faceColumns.rbegin()->second.front() ));
2821 // SHOWYXZ("V First "<<iE, BRep_Tool::Pnt( TopExp::FirstVertex(*edgeIt,true )));
2824 // Create 4 wall faces of a block
2825 // -------------------------------
2827 if ( nbSides <= NB_WALL_FACES ) // ************* Split faces if necessary
2829 if ( nbSides != NB_WALL_FACES ) // define how to split
2831 if ( len2edgeMap.size() != nbEdges )
2832 RETURN_BAD_RESULT("Uniqueness of edge lengths not assured");
2834 multimap< double, int >::reverse_iterator maxLen_i = len2edgeMap.rbegin();
2835 multimap< double, int >::reverse_iterator midLen_i = ++len2edgeMap.rbegin();
2837 double maxLen = maxLen_i->first;
2838 double midLen = ( len2edgeMap.size() == 1 ) ? 0 : midLen_i->first;
2839 switch ( nbEdges ) {
2840 case 1: // 0-th edge is split into 4 parts
2841 nbSplitPerEdge[ 0 ] = 4;
2843 case 2: // either the longest edge is split into 3 parts, or both edges into halves
2844 if ( maxLen / 3 > midLen / 2 ) {
2845 nbSplitPerEdge[ maxLen_i->second ] = 3;
2848 nbSplitPerEdge[ maxLen_i->second ] = 2;
2849 nbSplitPerEdge[ midLen_i->second ] = 2;
2854 // split longest into 3 parts
2855 nbSplitPerEdge[ maxLen_i->second ] = 3;
2857 // split longest into halves
2858 nbSplitPerEdge[ maxLen_i->second ] = 2;
2862 else // **************************** Unite faces
2864 int nbExraFaces = nbSides - 4; // nb of faces to fuse
2865 for ( iE = 0; iE < nbEdges; ++iE )
2867 if ( nbUnitePerEdge[ iE ] < 0 )
2869 // look for already united faces
2870 for ( int i = iE; i < iE + nbExraFaces; ++i )
2872 if ( nbUnitePerEdge[ i ] > 0 ) // a side including nbUnitePerEdge[i]+1 edge
2873 nbExraFaces += nbUnitePerEdge[ i ];
2874 nbUnitePerEdge[ i ] = -1;
2876 nbUnitePerEdge[ iE ] = nbExraFaces;
2881 // Create TSideFace's
2883 list< TopoDS_Edge >::const_iterator botE = thePrism.myBottomEdges.begin();
2884 for ( iE = 0; iE < nbEdges; ++iE, ++botE )
2886 TFaceQuadStructPtr quad = thePrism.myWallQuads[ iE ].front();
2887 const int nbSplit = nbSplitPerEdge[ iE ];
2888 const int nbExraFaces = nbUnitePerEdge[ iE ] + 1;
2889 if ( nbSplit > 0 ) // split
2891 vector< double > params;
2892 splitParams( nbSplit, &myParam2ColumnMaps[ iE ], params );
2893 const bool isForward =
2894 StdMeshers_PrismAsBlock::IsForwardEdge( myHelper->GetMeshDS(),
2895 myParam2ColumnMaps[iE],
2896 *botE, SMESH_Block::ID_Fx0z );
2897 for ( int i = 0; i < nbSplit; ++i ) {
2898 double f = ( isForward ? params[ i ] : params[ nbSplit - i-1 ]);
2899 double l = ( isForward ? params[ i+1 ] : params[ nbSplit - i ]);
2900 TSideFace* comp = new TSideFace( *mesh, wallFaceIds[ iSide ],
2901 thePrism.myWallQuads[ iE ], *botE,
2902 &myParam2ColumnMaps[ iE ], f, l );
2903 mySide->SetComponent( iSide++, comp );
2906 else if ( nbExraFaces > 1 ) // unite
2908 double u0 = 0, sumLen = 0;
2909 for ( int i = iE; i < iE + nbExraFaces; ++i )
2910 sumLen += edgeLength[ i ];
2912 vector< TSideFace* > components( nbExraFaces );
2913 vector< pair< double, double> > params( nbExraFaces );
2914 bool endReached = false;
2915 for ( int i = 0; i < nbExraFaces; ++i, ++botE, ++iE )
2917 if ( iE == nbEdges )
2920 botE = thePrism.myBottomEdges.begin();
2923 components[ i ] = new TSideFace( *mesh, wallFaceIds[ iSide ],
2924 thePrism.myWallQuads[ iE ], *botE,
2925 &myParam2ColumnMaps[ iE ]);
2926 double u1 = u0 + edgeLength[ iE ] / sumLen;
2927 params[ i ] = make_pair( u0 , u1 );
2930 TSideFace* comp = new TSideFace( *mesh, components, params );
2931 mySide->SetComponent( iSide++, comp );
2934 --iE; // for increment in an external loop on iE
2937 else if ( nbExraFaces < 0 ) // skip already united face
2942 TSideFace* comp = new TSideFace( *mesh, wallFaceIds[ iSide ],
2943 thePrism.myWallQuads[ iE ], *botE,
2944 &myParam2ColumnMaps[ iE ]);
2945 mySide->SetComponent( iSide++, comp );
2950 // Fill geometry fields of SMESH_Block
2951 // ------------------------------------
2953 vector< int > botEdgeIdVec;
2954 SMESH_Block::GetFaceEdgesIDs( ID_BOT_FACE, botEdgeIdVec );
2956 bool isForward[NB_WALL_FACES] = { true, true, true, true };
2957 Adaptor2d_Curve2d* botPcurves[NB_WALL_FACES];
2958 Adaptor2d_Curve2d* topPcurves[NB_WALL_FACES];
2960 for ( int iF = 0; iF < NB_WALL_FACES; ++iF )
2962 TSideFace * sideFace = mySide->GetComponent( iF );
2964 RETURN_BAD_RESULT("NULL TSideFace");
2965 int fID = sideFace->FaceID(); // in-block ID
2967 // fill myShapeIDMap
2968 if ( sideFace->InsertSubShapes( myShapeIDMap ) != 8 &&
2969 !sideFace->IsComplex())
2970 MESSAGE( ": Warning : InsertSubShapes() < 8 on side " << iF );
2972 // side faces geometry
2973 Adaptor2d_Curve2d* pcurves[NB_WALL_FACES];
2974 if ( !sideFace->GetPCurves( pcurves ))
2975 RETURN_BAD_RESULT("TSideFace::GetPCurves() failed");
2977 SMESH_Block::TFace& tFace = myFace[ fID - ID_FirstF ];
2978 tFace.Set( fID, sideFace->Surface(), pcurves, isForward );
2980 SHOWYXZ( endl<<"F "<< iF << " id " << fID << " FRW " << sideFace->IsForward(), sideFace->Value(0,0));
2981 // edges 3D geometry
2982 vector< int > edgeIdVec;
2983 SMESH_Block::GetFaceEdgesIDs( fID, edgeIdVec );
2984 for ( int isMax = 0; isMax < 2; ++isMax ) {
2986 int eID = edgeIdVec[ isMax ];
2987 SMESH_Block::TEdge& tEdge = myEdge[ eID - ID_FirstE ];
2988 tEdge.Set( eID, sideFace->HorizCurve(isMax), true);
2989 SHOWYXZ(eID<<" HOR"<<isMax<<"(0)", sideFace->HorizCurve(isMax)->Value(0));
2990 SHOWYXZ(eID<<" HOR"<<isMax<<"(1)", sideFace->HorizCurve(isMax)->Value(1));
2993 int eID = edgeIdVec[ isMax+2 ];
2994 SMESH_Block::TEdge& tEdge = myEdge[ eID - ID_FirstE ];
2995 tEdge.Set( eID, sideFace->VertiCurve(isMax), true);
2996 SHOWYXZ(eID<<" VER"<<isMax<<"(0)", sideFace->VertiCurve(isMax)->Value(0));
2997 SHOWYXZ(eID<<" VER"<<isMax<<"(1)", sideFace->VertiCurve(isMax)->Value(1));
3000 vector< int > vertexIdVec;
3001 SMESH_Block::GetEdgeVertexIDs( eID, vertexIdVec );
3002 myPnt[ vertexIdVec[0] - ID_FirstV ] = tEdge.GetCurve()->Value(0).XYZ();
3003 myPnt[ vertexIdVec[1] - ID_FirstV ] = tEdge.GetCurve()->Value(1).XYZ();
3006 // pcurves on horizontal faces
3007 for ( iE = 0; iE < NB_WALL_FACES; ++iE ) {
3008 if ( edgeIdVec[ BOTTOM_EDGE ] == botEdgeIdVec[ iE ] ) {
3009 botPcurves[ iE ] = sideFace->HorizPCurve( false, thePrism.myBottom );
3010 topPcurves[ iE ] = sideFace->HorizPCurve( true, thePrism.myTop );
3014 //sideFace->dumpNodes( 4 ); // debug
3016 // horizontal faces geometry
3018 SMESH_Block::TFace& tFace = myFace[ ID_BOT_FACE - ID_FirstF ];
3019 tFace.Set( ID_BOT_FACE, new BRepAdaptor_Surface( thePrism.myBottom ), botPcurves, isForward );
3020 SMESH_Block::Insert( thePrism.myBottom, ID_BOT_FACE, myShapeIDMap );
3023 SMESH_Block::TFace& tFace = myFace[ ID_TOP_FACE - ID_FirstF ];
3024 tFace.Set( ID_TOP_FACE, new BRepAdaptor_Surface( thePrism.myTop ), topPcurves, isForward );
3025 SMESH_Block::Insert( thePrism.myTop, ID_TOP_FACE, myShapeIDMap );
3027 //faceGridToPythonDump( SMESH_Block::ID_Fxy0, 50 );
3028 //faceGridToPythonDump( SMESH_Block::ID_Fxy1 );
3030 // Fill map ShapeIndex to TParam2ColumnMap
3031 // ----------------------------------------
3033 list< TSideFace* > fList;
3034 list< TSideFace* >::iterator fListIt;
3035 fList.push_back( mySide );
3036 for ( fListIt = fList.begin(); fListIt != fList.end(); ++fListIt)
3038 int nb = (*fListIt)->NbComponents();
3039 for ( int i = 0; i < nb; ++i ) {
3040 if ( TSideFace* comp = (*fListIt)->GetComponent( i ))
3041 fList.push_back( comp );
3043 if ( TParam2ColumnMap* cols = (*fListIt)->GetColumns()) {
3044 // columns for a base edge
3045 int id = MeshDS()->ShapeToIndex( (*fListIt)->BaseEdge() );
3046 bool isForward = (*fListIt)->IsForward();
3047 myShapeIndex2ColumnMap[ id ] = make_pair( cols, isForward );
3049 // columns for vertices
3050 const SMDS_MeshNode* n0 = cols->begin()->second.front();
3051 id = n0->getshapeId();
3052 myShapeIndex2ColumnMap[ id ] = make_pair( cols, isForward );
3054 const SMDS_MeshNode* n1 = cols->rbegin()->second.front();
3055 id = n1->getshapeId();
3056 myShapeIndex2ColumnMap[ id ] = make_pair( cols, !isForward );
3060 // #define SHOWYXZ(msg, xyz) { \
3061 // gp_Pnt p (xyz); \
3062 // cout << msg << " ("<< p.X() << "; " <<p.Y() << "; " <<p.Z() << ") " <<endl; \
3064 // double _u[]={ 0.1, 0.1, 0.9, 0.9 };
3065 // double _v[]={ 0.1, 0.9, 0.1, 0.9 };
3066 // for ( int z = 0; z < 2; ++z )
3067 // for ( int i = 0; i < 4; ++i )
3069 // //gp_XYZ testPar(0.25, 0.25, 0), testCoord;
3070 // int iFace = (z ? ID_TOP_FACE : ID_BOT_FACE);
3071 // gp_XYZ testPar(_u[i], _v[i], z), testCoord;
3072 // if ( !FacePoint( iFace, testPar, testCoord ))
3073 // RETURN_BAD_RESULT("TEST FacePoint() FAILED");
3074 // SHOWYXZ("IN TEST PARAM" , testPar);
3075 // SHOWYXZ("OUT TEST CORD" , testCoord);
3076 // if ( !ComputeParameters( testCoord, testPar , iFace))
3077 // RETURN_BAD_RESULT("TEST ComputeParameters() FAILED");
3078 // SHOWYXZ("OUT TEST PARAM" , testPar);
3083 //================================================================================
3085 * \brief Return pointer to column of nodes
3086 * \param node - bottom node from which the returned column goes up
3087 * \retval const TNodeColumn* - the found column
3089 //================================================================================
3091 const TNodeColumn* StdMeshers_PrismAsBlock::GetNodeColumn(const SMDS_MeshNode* node) const
3093 int sID = node->getshapeId();
3095 map<int, pair< TParam2ColumnMap*, bool > >::const_iterator col_frw =
3096 myShapeIndex2ColumnMap.find( sID );
3097 if ( col_frw != myShapeIndex2ColumnMap.end() ) {
3098 const TParam2ColumnMap* cols = col_frw->second.first;
3099 TParam2ColumnIt u_col = cols->begin();
3100 for ( ; u_col != cols->end(); ++u_col )
3101 if ( u_col->second[ 0 ] == node )
3102 return & u_col->second;
3107 //=======================================================================
3108 //function : GetLayersTransformation
3109 //purpose : Return transformations to get coordinates of nodes of each layer
3110 // by nodes of the bottom. Layer is a set of nodes at a certain step
3111 // from bottom to top.
3112 // Transformation to get top node from bottom ones is computed
3113 // only if the top FACE is not meshed.
3114 //=======================================================================
3116 bool StdMeshers_PrismAsBlock::GetLayersTransformation(vector<gp_Trsf> & trsf,
3117 const Prism_3D::TPrismTopo& prism) const
3119 const bool itTopMeshed = !SubMesh( ID_BOT_FACE )->IsEmpty();
3120 const int zSize = VerticalSize();
3121 if ( zSize < 3 && !itTopMeshed ) return true;
3122 trsf.resize( zSize - 1 );
3124 // Select some node columns by which we will define coordinate system of layers
3126 vector< const TNodeColumn* > columns;
3129 list< TopoDS_Edge >::const_iterator edgeIt = prism.myBottomEdges.begin();
3130 for ( int iE = 0; iE < prism.myNbEdgesInWires.front(); ++iE, ++edgeIt )
3132 if ( SMESH_Algo::isDegenerated( *edgeIt )) continue;
3133 const TParam2ColumnMap* u2colMap =
3134 GetParam2ColumnMap( MeshDS()->ShapeToIndex( *edgeIt ), isReverse );
3135 if ( !u2colMap ) return false;
3136 double f = u2colMap->begin()->first, l = u2colMap->rbegin()->first;
3137 //isReverse = ( edgeIt->Orientation() == TopAbs_REVERSED );
3138 //if ( isReverse ) swap ( f, l ); -- u2colMap takes orientation into account
3139 const int nbCol = 5;
3140 for ( int i = 0; i < nbCol; ++i )
3142 double u = f + i/double(nbCol) * ( l - f );
3143 const TNodeColumn* col = & getColumn( u2colMap, u )->second;
3144 if ( columns.empty() || col != columns.back() )
3145 columns.push_back( col );
3150 // Find tolerance to check transformations
3155 for ( int i = 0; i < columns.size(); ++i )
3156 bndBox.Add( gpXYZ( columns[i]->front() ));
3157 tol2 = bndBox.SquareExtent() * 1e-5;
3160 // Compute transformations
3163 gp_Trsf fromCsZ, toCs0;
3164 gp_Ax3 cs0 = getLayerCoordSys(0, columns, xCol );
3165 //double dist0 = cs0.Location().Distance( gpXYZ( (*columns[0])[0]));
3166 toCs0.SetTransformation( cs0 );
3167 for ( int z = 1; z < zSize; ++z )
3169 gp_Ax3 csZ = getLayerCoordSys(z, columns, xCol );
3170 //double distZ = csZ.Location().Distance( gpXYZ( (*columns[0])[z]));
3171 fromCsZ.SetTransformation( csZ );
3173 gp_Trsf& t = trsf[ z-1 ];
3174 t = fromCsZ * toCs0;
3175 //t.SetScaleFactor( distZ/dist0 ); - it does not work properly, wrong base point
3177 // check a transformation
3178 for ( int i = 0; i < columns.size(); ++i )
3180 gp_Pnt p0 = gpXYZ( (*columns[i])[0] );
3181 gp_Pnt pz = gpXYZ( (*columns[i])[z] );
3182 t.Transforms( p0.ChangeCoord() );
3183 if ( p0.SquareDistance( pz ) > tol2 )
3186 return ( z == zSize - 1 ); // OK if fails only botton->top trsf
3193 //================================================================================
3195 * \brief Check curve orientation of a bootom edge
3196 * \param meshDS - mesh DS
3197 * \param columnsMap - node columns map of side face
3198 * \param bottomEdge - the bootom edge
3199 * \param sideFaceID - side face in-block ID
3200 * \retval bool - true if orientation coinside with in-block forward orientation
3202 //================================================================================
3204 bool StdMeshers_PrismAsBlock::IsForwardEdge(SMESHDS_Mesh* meshDS,
3205 const TParam2ColumnMap& columnsMap,
3206 const TopoDS_Edge & bottomEdge,
3207 const int sideFaceID)
3209 bool isForward = false;
3210 if ( SMESH_MesherHelper::IsClosedEdge( bottomEdge ))
3212 isForward = ( bottomEdge.Orientation() == TopAbs_FORWARD );
3216 const TNodeColumn& firstCol = columnsMap.begin()->second;
3217 const SMDS_MeshNode* bottomNode = firstCol[0];
3218 TopoDS_Shape firstVertex = SMESH_MesherHelper::GetSubShapeByNode( bottomNode, meshDS );
3219 isForward = ( firstVertex.IsSame( TopExp::FirstVertex( bottomEdge, true )));
3221 // on 2 of 4 sides first vertex is end
3222 if ( sideFaceID == ID_Fx1z || sideFaceID == ID_F0yz )
3223 isForward = !isForward;
3227 //=======================================================================
3228 //function : faceGridToPythonDump
3229 //purpose : Prints a script creating a normal grid on the prism side
3230 //=======================================================================
3232 void StdMeshers_PrismAsBlock::faceGridToPythonDump(const SMESH_Block::TShapeID face,
3236 gp_XYZ pOnF[6] = { gp_XYZ(0,0,0), gp_XYZ(0,0,1),
3237 gp_XYZ(0,0,0), gp_XYZ(0,1,0),
3238 gp_XYZ(0,0,0), gp_XYZ(1,0,0) };
3240 cout << "mesh = smesh.Mesh( 'Face " << face << "')" << endl;
3241 SMESH_Block::TFace& f = myFace[ face - ID_FirstF ];
3242 gp_XYZ params = pOnF[ face - ID_FirstF ];
3243 //const int nb = 10; // nb face rows
3244 for ( int j = 0; j <= nb; ++j )
3246 params.SetCoord( f.GetVInd(), double( j )/ nb );
3247 for ( int i = 0; i <= nb; ++i )
3249 params.SetCoord( f.GetUInd(), double( i )/ nb );
3250 gp_XYZ p = f.Point( params );
3251 gp_XY uv = f.GetUV( params );
3252 cout << "mesh.AddNode( " << p.X() << ", " << p.Y() << ", " << p.Z() << " )"
3253 << " # " << 1 + i + j * ( nb + 1 )
3254 << " ( " << i << ", " << j << " ) "
3255 << " UV( " << uv.X() << ", " << uv.Y() << " )" << endl;
3256 ShellPoint( params, p2 );
3257 double dist = ( p2 - p ).Modulus();
3259 cout << "#### dist from ShellPoint " << dist
3260 << " (" << p2.X() << ", " << p2.Y() << ", " << p2.Z() << " ) " << endl;
3263 for ( int j = 0; j < nb; ++j )
3264 for ( int i = 0; i < nb; ++i )
3266 int n = 1 + i + j * ( nb + 1 );
3267 cout << "mesh.AddFace([ "
3268 << n << ", " << n+1 << ", "
3269 << n+nb+2 << ", " << n+nb+1 << "]) " << endl;
3275 //================================================================================
3277 * \brief Constructor
3278 * \param faceID - in-block ID
3279 * \param face - geom FACE
3280 * \param baseEdge - EDGE proreply oriented in the bottom EDGE !!!
3281 * \param columnsMap - map of node columns
3282 * \param first - first normalized param
3283 * \param last - last normalized param
3285 //================================================================================
3287 StdMeshers_PrismAsBlock::TSideFace::TSideFace(SMESH_Mesh& mesh,
3289 const Prism_3D::TQuadList& quadList,
3290 const TopoDS_Edge& baseEdge,
3291 TParam2ColumnMap* columnsMap,
3295 myParamToColumnMap( columnsMap ),
3298 myParams.resize( 1 );
3299 myParams[ 0 ] = make_pair( first, last );
3300 mySurface = PSurface( new BRepAdaptor_Surface( quadList.front()->face ));
3301 myBaseEdge = baseEdge;
3302 myIsForward = StdMeshers_PrismAsBlock::IsForwardEdge( myHelper.GetMeshDS(),
3303 *myParamToColumnMap,
3305 myHelper.SetSubShape( quadList.front()->face );
3307 if ( quadList.size() > 1 ) // side is vertically composite
3309 // fill myShapeID2Surf map to enable finding a right surface by any sub-shape ID
3311 SMESHDS_Mesh* meshDS = myHelper.GetMeshDS();
3313 TopTools_IndexedDataMapOfShapeListOfShape subToFaces;
3314 Prism_3D::TQuadList::const_iterator quad = quadList.begin();
3315 for ( ; quad != quadList.end(); ++quad )
3317 const TopoDS_Face& face = (*quad)->face;
3318 TopExp::MapShapesAndAncestors( face, TopAbs_VERTEX, TopAbs_FACE, subToFaces );
3319 TopExp::MapShapesAndAncestors( face, TopAbs_EDGE, TopAbs_FACE, subToFaces );
3320 myShapeID2Surf.insert( make_pair( meshDS->ShapeToIndex( face ),
3321 PSurface( new BRepAdaptor_Surface( face ))));
3323 for ( int i = 1; i <= subToFaces.Extent(); ++i )
3325 const TopoDS_Shape& sub = subToFaces.FindKey( i );
3326 TopTools_ListOfShape& faces = subToFaces( i );
3327 int subID = meshDS->ShapeToIndex( sub );
3328 int faceID = meshDS->ShapeToIndex( faces.First() );
3329 myShapeID2Surf.insert ( make_pair( subID, myShapeID2Surf[ faceID ]));
3334 //================================================================================
3336 * \brief Constructor of a complex side face
3338 //================================================================================
3340 StdMeshers_PrismAsBlock::TSideFace::
3341 TSideFace(SMESH_Mesh& mesh,
3342 const vector< TSideFace* >& components,
3343 const vector< pair< double, double> > & params)
3344 :myID( components[0] ? components[0]->myID : 0 ),
3345 myParamToColumnMap( 0 ),
3347 myIsForward( true ),
3348 myComponents( components ),
3351 if ( myID == ID_Fx1z || myID == ID_F0yz )
3353 // reverse components
3354 std::reverse( myComponents.begin(), myComponents.end() );
3355 std::reverse( myParams.begin(), myParams.end() );
3356 for ( size_t i = 0; i < myParams.size(); ++i )
3358 const double f = myParams[i].first;
3359 const double l = myParams[i].second;
3360 myParams[i] = make_pair( 1. - l, 1. - f );
3364 //================================================================================
3366 * \brief Copy constructor
3367 * \param other - other side
3369 //================================================================================
3371 StdMeshers_PrismAsBlock::TSideFace::TSideFace( const TSideFace& other ):
3372 myID ( other.myID ),
3373 myParamToColumnMap ( other.myParamToColumnMap ),
3374 mySurface ( other.mySurface ),
3375 myBaseEdge ( other.myBaseEdge ),
3376 myShapeID2Surf ( other.myShapeID2Surf ),
3377 myParams ( other.myParams ),
3378 myIsForward ( other.myIsForward ),
3379 myComponents ( other.myComponents.size() ),
3380 myHelper ( *other.myHelper.GetMesh() )
3382 for (int i = 0 ; i < myComponents.size(); ++i )
3383 myComponents[ i ] = new TSideFace( *other.myComponents[ i ]);
3386 //================================================================================
3388 * \brief Deletes myComponents
3390 //================================================================================
3392 StdMeshers_PrismAsBlock::TSideFace::~TSideFace()
3394 for (int i = 0 ; i < myComponents.size(); ++i )
3395 if ( myComponents[ i ] )
3396 delete myComponents[ i ];
3399 //================================================================================
3401 * \brief Return geometry of the vertical curve
3402 * \param isMax - true means curve located closer to (1,1,1) block point
3403 * \retval Adaptor3d_Curve* - curve adaptor
3405 //================================================================================
3407 Adaptor3d_Curve* StdMeshers_PrismAsBlock::TSideFace::VertiCurve(const bool isMax) const
3409 if ( !myComponents.empty() ) {
3411 return myComponents.back()->VertiCurve(isMax);
3413 return myComponents.front()->VertiCurve(isMax);
3415 double f = myParams[0].first, l = myParams[0].second;
3416 if ( !myIsForward ) std::swap( f, l );
3417 return new TVerticalEdgeAdaptor( myParamToColumnMap, isMax ? l : f );
3420 //================================================================================
3422 * \brief Return geometry of the top or bottom curve
3424 * \retval Adaptor3d_Curve* -
3426 //================================================================================
3428 Adaptor3d_Curve* StdMeshers_PrismAsBlock::TSideFace::HorizCurve(const bool isTop) const
3430 return new THorizontalEdgeAdaptor( this, isTop );
3433 //================================================================================
3435 * \brief Return pcurves
3436 * \param pcurv - array of 4 pcurves
3437 * \retval bool - is a success
3439 //================================================================================
3441 bool StdMeshers_PrismAsBlock::TSideFace::GetPCurves(Adaptor2d_Curve2d* pcurv[4]) const
3443 int iEdge[ 4 ] = { BOTTOM_EDGE, TOP_EDGE, V0_EDGE, V1_EDGE };
3445 for ( int i = 0 ; i < 4 ; ++i ) {
3446 Handle(Geom2d_Line) line;
3447 switch ( iEdge[ i ] ) {
3449 line = new Geom2d_Line( gp_Pnt2d( 0, 1 ), gp::DX2d() ); break;
3451 line = new Geom2d_Line( gp::Origin2d(), gp::DX2d() ); break;
3453 line = new Geom2d_Line( gp::Origin2d(), gp::DY2d() ); break;
3455 line = new Geom2d_Line( gp_Pnt2d( 1, 0 ), gp::DY2d() ); break;
3457 pcurv[ i ] = new Geom2dAdaptor_Curve( line, 0, 1 );
3462 //================================================================================
3464 * \brief Returns geometry of pcurve on a horizontal face
3465 * \param isTop - is top or bottom face
3466 * \param horFace - a horizontal face
3467 * \retval Adaptor2d_Curve2d* - curve adaptor
3469 //================================================================================
3472 StdMeshers_PrismAsBlock::TSideFace::HorizPCurve(const bool isTop,
3473 const TopoDS_Face& horFace) const
3475 return new TPCurveOnHorFaceAdaptor( this, isTop, horFace );
3478 //================================================================================
3480 * \brief Return a component corresponding to parameter
3481 * \param U - parameter along a horizontal size
3482 * \param localU - parameter along a horizontal size of a component
3483 * \retval TSideFace* - found component
3485 //================================================================================
3487 StdMeshers_PrismAsBlock::TSideFace*
3488 StdMeshers_PrismAsBlock::TSideFace::GetComponent(const double U,double & localU) const
3491 if ( myComponents.empty() )
3492 return const_cast<TSideFace*>( this );
3495 for ( i = 0; i < myComponents.size(); ++i )
3496 if ( U < myParams[ i ].second )
3498 if ( i >= myComponents.size() )
3499 i = myComponents.size() - 1;
3501 double f = myParams[ i ].first, l = myParams[ i ].second;
3502 localU = ( U - f ) / ( l - f );
3503 return myComponents[ i ];
3506 //================================================================================
3508 * \brief Find node columns for a parameter
3509 * \param U - parameter along a horizontal edge
3510 * \param col1 - the 1st found column
3511 * \param col2 - the 2nd found column
3512 * \retval r - normalized position of U between the found columns
3514 //================================================================================
3516 double StdMeshers_PrismAsBlock::TSideFace::GetColumns(const double U,
3517 TParam2ColumnIt & col1,
3518 TParam2ColumnIt & col2) const
3520 double u = U, r = 0;
3521 if ( !myComponents.empty() ) {
3522 TSideFace * comp = GetComponent(U,u);
3523 return comp->GetColumns( u, col1, col2 );
3528 double f = myParams[0].first, l = myParams[0].second;
3529 u = f + u * ( l - f );
3531 col1 = col2 = getColumn( myParamToColumnMap, u );
3532 if ( ++col2 == myParamToColumnMap->end() ) {
3537 double uf = col1->first;
3538 double ul = col2->first;
3539 r = ( u - uf ) / ( ul - uf );
3544 //================================================================================
3546 * \brief Return all nodes at a given height together with their normalized parameters
3547 * \param [in] Z - the height of interest
3548 * \param [out] nodes - map of parameter to node
3550 //================================================================================
3552 void StdMeshers_PrismAsBlock::
3553 TSideFace::GetNodesAtZ(const int Z,
3554 map<double, const SMDS_MeshNode* >& nodes ) const
3556 if ( !myComponents.empty() )
3559 for ( size_t i = 0; i < myComponents.size(); ++i )
3561 map<double, const SMDS_MeshNode* > nn;
3562 myComponents[i]->GetNodesAtZ( Z, nn );
3563 map<double, const SMDS_MeshNode* >::iterator u2n = nn.begin();
3564 if ( !nodes.empty() && nodes.rbegin()->second == u2n->second )
3566 const double uRange = myParams[i].second - myParams[i].first;
3567 for ( ; u2n != nn.end(); ++u2n )
3568 nodes.insert( nodes.end(), make_pair( u0 + uRange * u2n->first, u2n->second ));
3574 double f = myParams[0].first, l = myParams[0].second;
3577 const double uRange = l - f;
3578 if ( Abs( uRange ) < std::numeric_limits<double>::min() )
3580 TParam2ColumnIt u2col = getColumn( myParamToColumnMap, myParams[0].first + 1e-3 );
3581 for ( ; u2col != myParamToColumnMap->end(); ++u2col )
3582 if ( u2col->first > myParams[0].second + 1e-9 )
3585 nodes.insert( nodes.end(),
3586 make_pair( ( u2col->first - f ) / uRange, u2col->second[ Z ] ));
3590 //================================================================================
3592 * \brief Return coordinates by normalized params
3593 * \param U - horizontal param
3594 * \param V - vertical param
3595 * \retval gp_Pnt - result point
3597 //================================================================================
3599 gp_Pnt StdMeshers_PrismAsBlock::TSideFace::Value(const Standard_Real U,
3600 const Standard_Real V) const
3602 if ( !myComponents.empty() ) {
3604 TSideFace * comp = GetComponent(U,u);
3605 return comp->Value( u, V );
3608 TParam2ColumnIt u_col1, u_col2;
3609 double vR, hR = GetColumns( U, u_col1, u_col2 );
3611 const SMDS_MeshNode* nn[4];
3613 // BEGIN issue 0020680: Bad cell created by Radial prism in center of torus
3614 // Workaround for a wrongly located point returned by mySurface.Value() for
3615 // UV located near boundary of BSpline surface.
3616 // To bypass the problem, we take point from 3D curve of EDGE.
3617 // It solves pb of the bloc_fiss_new.py
3618 const double tol = 1e-3;
3619 if ( V < tol || V+tol >= 1. )
3621 nn[0] = V < tol ? u_col1->second.front() : u_col1->second.back();
3622 nn[2] = V < tol ? u_col2->second.front() : u_col2->second.back();
3630 TopoDS_Shape s = myHelper.GetSubShapeByNode( nn[0], myHelper.GetMeshDS() );
3631 if ( s.ShapeType() != TopAbs_EDGE )
3632 s = myHelper.GetSubShapeByNode( nn[2], myHelper.GetMeshDS() );
3633 if ( s.ShapeType() == TopAbs_EDGE )
3634 edge = TopoDS::Edge( s );
3636 if ( !edge.IsNull() )
3638 double u1 = myHelper.GetNodeU( edge, nn[0] );
3639 double u3 = myHelper.GetNodeU( edge, nn[2] );
3640 double u = u1 * ( 1 - hR ) + u3 * hR;
3641 TopLoc_Location loc; double f,l;
3642 Handle(Geom_Curve) curve = BRep_Tool::Curve( edge,loc,f,l );
3643 return curve->Value( u ).Transformed( loc );
3646 // END issue 0020680: Bad cell created by Radial prism in center of torus
3648 vR = getRAndNodes( & u_col1->second, V, nn[0], nn[1] );
3649 vR = getRAndNodes( & u_col2->second, V, nn[2], nn[3] );
3651 if ( !myShapeID2Surf.empty() ) // side is vertically composite
3653 // find a FACE on which the 4 nodes lie
3654 TSideFace* me = (TSideFace*) this;
3655 int notFaceID1 = 0, notFaceID2 = 0;
3656 for ( int i = 0; i < 4; ++i )
3657 if ( nn[i]->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE ) // node on FACE
3659 me->mySurface = me->myShapeID2Surf[ nn[i]->getshapeId() ];
3663 else if ( notFaceID1 == 0 ) // node on EDGE or VERTEX
3665 me->mySurface = me->myShapeID2Surf[ nn[i]->getshapeId() ];
3666 notFaceID1 = nn[i]->getshapeId();
3668 else if ( notFaceID1 != nn[i]->getshapeId() ) // node on other EDGE or VERTEX
3670 if ( mySurface != me->myShapeID2Surf[ nn[i]->getshapeId() ])
3671 notFaceID2 = nn[i]->getshapeId();
3673 if ( notFaceID2 ) // no nodes of FACE and nodes are on different FACEs
3675 SMESHDS_Mesh* meshDS = myHelper.GetMeshDS();
3676 TopoDS_Shape face = myHelper.GetCommonAncestor( meshDS->IndexToShape( notFaceID1 ),
3677 meshDS->IndexToShape( notFaceID2 ),
3678 *myHelper.GetMesh(),
3680 if ( face.IsNull() )
3681 throw SALOME_Exception("StdMeshers_PrismAsBlock::TSideFace::Value() face.IsNull()");
3682 int faceID = meshDS->ShapeToIndex( face );
3683 me->mySurface = me->myShapeID2Surf[ faceID ];
3685 throw SALOME_Exception("StdMeshers_PrismAsBlock::TSideFace::Value() !mySurface");
3688 ((TSideFace*) this)->myHelper.SetSubShape( mySurface->Face() );
3690 gp_XY uv1 = myHelper.GetNodeUV( mySurface->Face(), nn[0], nn[2]);
3691 gp_XY uv2 = myHelper.GetNodeUV( mySurface->Face(), nn[1], nn[3]);
3692 gp_XY uv12 = uv1 * ( 1 - vR ) + uv2 * vR;
3694 gp_XY uv3 = myHelper.GetNodeUV( mySurface->Face(), nn[2], nn[0]);
3695 gp_XY uv4 = myHelper.GetNodeUV( mySurface->Face(), nn[3], nn[1]);
3696 gp_XY uv34 = uv3 * ( 1 - vR ) + uv4 * vR;
3698 gp_XY uv = uv12 * ( 1 - hR ) + uv34 * hR;
3700 gp_Pnt p = mySurface->Value( uv.X(), uv.Y() );
3705 //================================================================================
3707 * \brief Return boundary edge
3708 * \param edge - edge index
3709 * \retval TopoDS_Edge - found edge
3711 //================================================================================
3713 TopoDS_Edge StdMeshers_PrismAsBlock::TSideFace::GetEdge(const int iEdge) const
3715 if ( !myComponents.empty() ) {
3717 case V0_EDGE : return myComponents.front()->GetEdge( iEdge );
3718 case V1_EDGE : return myComponents.back() ->GetEdge( iEdge );
3719 default: return TopoDS_Edge();
3723 const SMDS_MeshNode* node = 0;
3724 SMESHDS_Mesh * meshDS = myHelper.GetMesh()->GetMeshDS();
3725 TNodeColumn* column;
3730 column = & (( ++myParamToColumnMap->begin())->second );
3731 node = ( iEdge == TOP_EDGE ) ? column->back() : column->front();
3732 edge = myHelper.GetSubShapeByNode ( node, meshDS );
3733 if ( edge.ShapeType() == TopAbs_VERTEX ) {
3734 column = & ( myParamToColumnMap->begin()->second );
3735 node = ( iEdge == TOP_EDGE ) ? column->back() : column->front();
3740 bool back = ( iEdge == V1_EDGE );
3741 if ( !myIsForward ) back = !back;
3743 column = & ( myParamToColumnMap->rbegin()->second );
3745 column = & ( myParamToColumnMap->begin()->second );
3746 if ( column->size() > 0 )
3747 edge = myHelper.GetSubShapeByNode( (*column)[ 1 ], meshDS );
3748 if ( edge.IsNull() || edge.ShapeType() == TopAbs_VERTEX )
3749 node = column->front();
3754 if ( !edge.IsNull() && edge.ShapeType() == TopAbs_EDGE )
3755 return TopoDS::Edge( edge );
3757 // find edge by 2 vertices
3758 TopoDS_Shape V1 = edge;
3759 TopoDS_Shape V2 = myHelper.GetSubShapeByNode( node, meshDS );
3760 if ( !V2.IsNull() && V2.ShapeType() == TopAbs_VERTEX && !V2.IsSame( V1 ))
3762 TopoDS_Shape ancestor = myHelper.GetCommonAncestor( V1, V2, *myHelper.GetMesh(), TopAbs_EDGE);
3763 if ( !ancestor.IsNull() )
3764 return TopoDS::Edge( ancestor );
3766 return TopoDS_Edge();
3769 //================================================================================
3771 * \brief Fill block sub-shapes
3772 * \param shapeMap - map to fill in
3773 * \retval int - nb inserted sub-shapes
3775 //================================================================================
3777 int StdMeshers_PrismAsBlock::TSideFace::InsertSubShapes(TBlockShapes& shapeMap) const
3782 vector< int > edgeIdVec;
3783 SMESH_Block::GetFaceEdgesIDs( myID, edgeIdVec );
3785 for ( int i = BOTTOM_EDGE; i <=V1_EDGE ; ++i ) {
3786 TopoDS_Edge e = GetEdge( i );
3787 if ( !e.IsNull() ) {
3788 nbInserted += SMESH_Block::Insert( e, edgeIdVec[ i ], shapeMap);
3792 // Insert corner vertices
3794 TParam2ColumnIt col1, col2 ;
3795 vector< int > vertIdVec;
3798 SMESH_Block::GetEdgeVertexIDs( edgeIdVec[ V0_EDGE ], vertIdVec);
3799 GetColumns(0, col1, col2 );
3800 const SMDS_MeshNode* node0 = col1->second.front();
3801 const SMDS_MeshNode* node1 = col1->second.back();
3802 TopoDS_Shape v0 = myHelper.GetSubShapeByNode( node0, myHelper.GetMeshDS());
3803 TopoDS_Shape v1 = myHelper.GetSubShapeByNode( node1, myHelper.GetMeshDS());
3804 if ( v0.ShapeType() == TopAbs_VERTEX ) {
3805 nbInserted += SMESH_Block::Insert( v0, vertIdVec[ 0 ], shapeMap);
3807 if ( v1.ShapeType() == TopAbs_VERTEX ) {
3808 nbInserted += SMESH_Block::Insert( v1, vertIdVec[ 1 ], shapeMap);
3812 SMESH_Block::GetEdgeVertexIDs( edgeIdVec[ V1_EDGE ], vertIdVec);
3813 GetColumns(1, col1, col2 );
3814 node0 = col2->second.front();
3815 node1 = col2->second.back();
3816 v0 = myHelper.GetSubShapeByNode( node0, myHelper.GetMeshDS());
3817 v1 = myHelper.GetSubShapeByNode( node1, myHelper.GetMeshDS());
3818 if ( v0.ShapeType() == TopAbs_VERTEX ) {
3819 nbInserted += SMESH_Block::Insert( v0, vertIdVec[ 0 ], shapeMap);
3821 if ( v1.ShapeType() == TopAbs_VERTEX ) {
3822 nbInserted += SMESH_Block::Insert( v1, vertIdVec[ 1 ], shapeMap);
3825 // TopoDS_Vertex V0, V1, Vcom;
3826 // TopExp::Vertices( myBaseEdge, V0, V1, true );
3827 // if ( !myIsForward ) std::swap( V0, V1 );
3829 // // bottom vertex IDs
3830 // SMESH_Block::GetEdgeVertexIDs( edgeIdVec[ _u0 ], vertIdVec);
3831 // SMESH_Block::Insert( V0, vertIdVec[ 0 ], shapeMap);
3832 // SMESH_Block::Insert( V1, vertIdVec[ 1 ], shapeMap);
3834 // TopoDS_Edge sideEdge = GetEdge( V0_EDGE );
3835 // if ( sideEdge.IsNull() || !TopExp::CommonVertex( botEdge, sideEdge, Vcom ))
3838 // // insert one side edge
3840 // if ( Vcom.IsSame( V0 )) edgeID = edgeIdVec[ _v0 ];
3841 // else edgeID = edgeIdVec[ _v1 ];
3842 // SMESH_Block::Insert( sideEdge, edgeID, shapeMap);
3844 // // top vertex of the side edge
3845 // SMESH_Block::GetEdgeVertexIDs( edgeID, vertIdVec);
3846 // TopoDS_Vertex Vtop = TopExp::FirstVertex( sideEdge );
3847 // if ( Vcom.IsSame( Vtop ))
3848 // Vtop = TopExp::LastVertex( sideEdge );
3849 // SMESH_Block::Insert( Vtop, vertIdVec[ 1 ], shapeMap);
3851 // // other side edge
3852 // sideEdge = GetEdge( V1_EDGE );
3853 // if ( sideEdge.IsNull() )
3855 // if ( edgeID = edgeIdVec[ _v1 ]) edgeID = edgeIdVec[ _v0 ];
3856 // else edgeID = edgeIdVec[ _v1 ];
3857 // SMESH_Block::Insert( sideEdge, edgeID, shapeMap);
3860 // TopoDS_Edge topEdge = GetEdge( TOP_EDGE );
3861 // SMESH_Block::Insert( topEdge, edgeIdVec[ _u1 ], shapeMap);
3863 // // top vertex of the other side edge
3864 // if ( !TopExp::CommonVertex( topEdge, sideEdge, Vcom ))
3866 // SMESH_Block::GetEdgeVertexIDs( edgeID, vertIdVec );
3867 // SMESH_Block::Insert( Vcom, vertIdVec[ 1 ], shapeMap);
3872 //================================================================================
3874 * \brief Dump ids of nodes of sides
3876 //================================================================================
3878 void StdMeshers_PrismAsBlock::TSideFace::dumpNodes(int nbNodes) const
3881 cout << endl << "NODES OF FACE "; SMESH_Block::DumpShapeID( myID, cout ) << endl;
3882 THorizontalEdgeAdaptor* hSize0 = (THorizontalEdgeAdaptor*) HorizCurve(0);
3883 cout << "Horiz side 0: "; hSize0->dumpNodes(nbNodes); cout << endl;
3884 THorizontalEdgeAdaptor* hSize1 = (THorizontalEdgeAdaptor*) HorizCurve(1);
3885 cout << "Horiz side 1: "; hSize1->dumpNodes(nbNodes); cout << endl;
3886 TVerticalEdgeAdaptor* vSide0 = (TVerticalEdgeAdaptor*) VertiCurve(0);
3887 cout << "Verti side 0: "; vSide0->dumpNodes(nbNodes); cout << endl;
3888 TVerticalEdgeAdaptor* vSide1 = (TVerticalEdgeAdaptor*) VertiCurve(1);
3889 cout << "Verti side 1: "; vSide1->dumpNodes(nbNodes); cout << endl;
3890 delete hSize0; delete hSize1; delete vSide0; delete vSide1;
3894 //================================================================================
3896 * \brief Creates TVerticalEdgeAdaptor
3897 * \param columnsMap - node column map
3898 * \param parameter - normalized parameter
3900 //================================================================================
3902 StdMeshers_PrismAsBlock::TVerticalEdgeAdaptor::
3903 TVerticalEdgeAdaptor( const TParam2ColumnMap* columnsMap, const double parameter)
3905 myNodeColumn = & getColumn( columnsMap, parameter )->second;
3908 //================================================================================
3910 * \brief Return coordinates for the given normalized parameter
3911 * \param U - normalized parameter
3912 * \retval gp_Pnt - coordinates
3914 //================================================================================
3916 gp_Pnt StdMeshers_PrismAsBlock::TVerticalEdgeAdaptor::Value(const Standard_Real U) const
3918 const SMDS_MeshNode* n1;
3919 const SMDS_MeshNode* n2;
3920 double r = getRAndNodes( myNodeColumn, U, n1, n2 );
3921 return gpXYZ(n1) * ( 1 - r ) + gpXYZ(n2) * r;
3924 //================================================================================
3926 * \brief Dump ids of nodes
3928 //================================================================================
3930 void StdMeshers_PrismAsBlock::TVerticalEdgeAdaptor::dumpNodes(int nbNodes) const
3933 for ( int i = 0; i < nbNodes && i < myNodeColumn->size(); ++i )
3934 cout << (*myNodeColumn)[i]->GetID() << " ";
3935 if ( nbNodes < myNodeColumn->size() )
3936 cout << myNodeColumn->back()->GetID();
3940 //================================================================================
3942 * \brief Return coordinates for the given normalized parameter
3943 * \param U - normalized parameter
3944 * \retval gp_Pnt - coordinates
3946 //================================================================================
3948 gp_Pnt StdMeshers_PrismAsBlock::THorizontalEdgeAdaptor::Value(const Standard_Real U) const
3950 return mySide->TSideFace::Value( U, myV );
3953 //================================================================================
3955 * \brief Dump ids of <nbNodes> first nodes and the last one
3957 //================================================================================
3959 void StdMeshers_PrismAsBlock::THorizontalEdgeAdaptor::dumpNodes(int nbNodes) const
3962 // Not bedugged code. Last node is sometimes incorrect
3963 const TSideFace* side = mySide;
3965 if ( mySide->IsComplex() )
3966 side = mySide->GetComponent(0,u);
3968 TParam2ColumnIt col, col2;
3969 TParam2ColumnMap* u2cols = side->GetColumns();
3970 side->GetColumns( u , col, col2 );
3972 int j, i = myV ? mySide->ColumnHeight()-1 : 0;
3974 const SMDS_MeshNode* n = 0;
3975 const SMDS_MeshNode* lastN
3976 = side->IsForward() ? u2cols->rbegin()->second[ i ] : u2cols->begin()->second[ i ];
3977 for ( j = 0; j < nbNodes && n != lastN; ++j )
3979 n = col->second[ i ];
3980 cout << n->GetID() << " ";
3981 if ( side->IsForward() )
3989 if ( mySide->IsComplex() )
3990 side = mySide->GetComponent(1,u);
3992 side->GetColumns( u , col, col2 );
3993 if ( n != col->second[ i ] )
3994 cout << col->second[ i ]->GetID();
3998 //================================================================================
4000 * \brief Costructor of TPCurveOnHorFaceAdaptor fills its map of
4001 * normalized parameter to node UV on a horizontal face
4002 * \param [in] sideFace - lateral prism side
4003 * \param [in] isTop - is \a horFace top or bottom of the prism
4004 * \param [in] horFace - top or bottom face of the prism
4006 //================================================================================
4008 StdMeshers_PrismAsBlock::
4009 TPCurveOnHorFaceAdaptor::TPCurveOnHorFaceAdaptor( const TSideFace* sideFace,
4011 const TopoDS_Face& horFace)
4013 if ( sideFace && !horFace.IsNull() )
4015 //cout << "\n\t FACE " << sideFace->FaceID() << endl;
4016 const int Z = isTop ? sideFace->ColumnHeight() - 1 : 0;
4017 map<double, const SMDS_MeshNode* > u2nodes;
4018 sideFace->GetNodesAtZ( Z, u2nodes );
4019 if ( u2nodes.empty() )
4022 SMESH_MesherHelper helper( *sideFace->GetMesh() );
4023 helper.SetSubShape( horFace );
4028 Handle(Geom2d_Curve) C2d;
4030 const double tol = 10 * helper.MaxTolerance( horFace );
4031 const SMDS_MeshNode* prevNode = u2nodes.rbegin()->second;
4033 map<double, const SMDS_MeshNode* >::iterator u2n = u2nodes.begin();
4034 for ( ; u2n != u2nodes.end(); ++u2n )
4036 const SMDS_MeshNode* n = u2n->second;
4038 if ( n->GetPosition()->GetTypeOfPosition() == SMDS_TOP_EDGE )
4040 if ( n->getshapeId() != edgeID )
4043 edgeID = n->getshapeId();
4044 TopoDS_Shape S = helper.GetSubShapeByNode( n, helper.GetMeshDS() );
4045 if ( !S.IsNull() && S.ShapeType() == TopAbs_EDGE )
4047 C2d = BRep_Tool::CurveOnSurface( TopoDS::Edge( S ), horFace, f,l );
4050 if ( !C2d.IsNull() )
4052 double u = static_cast< const SMDS_EdgePosition* >( n->GetPosition() )->GetUParameter();
4053 if ( f <= u && u <= l )
4055 uv = C2d->Value( u ).XY();
4056 okUV = helper.CheckNodeUV( horFace, n, uv, tol );
4061 uv = helper.GetNodeUV( horFace, n, prevNode, &okUV );
4063 myUVmap.insert( myUVmap.end(), make_pair( u2n->first, uv ));
4064 // cout << n->getshapeId() << " N " << n->GetID()
4065 // << " \t" << uv.X() << ", " << uv.Y() << " \t" << u2n->first << endl;
4072 //================================================================================
4074 * \brief Return UV on pcurve for the given normalized parameter
4075 * \param U - normalized parameter
4076 * \retval gp_Pnt - coordinates
4078 //================================================================================
4080 gp_Pnt2d StdMeshers_PrismAsBlock::TPCurveOnHorFaceAdaptor::Value(const Standard_Real U) const
4082 map< double, gp_XY >::const_iterator i1 = myUVmap.upper_bound( U );
4084 if ( i1 == myUVmap.end() )
4085 return myUVmap.empty() ? gp_XY(0,0) : myUVmap.rbegin()->second;
4087 if ( i1 == myUVmap.begin() )
4088 return (*i1).second;
4090 map< double, gp_XY >::const_iterator i2 = i1--;
4092 double r = ( U - i1->first ) / ( i2->first - i1->first );
4093 return i1->second * ( 1 - r ) + i2->second * r;