1 // Copyright (C) 2007-2013 CEA/DEN, EDF R&D, OPEN CASCADE
3 // Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
6 // This library is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU Lesser General Public
8 // License as published by the Free Software Foundation; either
9 // version 2.1 of the License.
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // Lesser General Public License for more details.
16 // You should have received a copy of the GNU Lesser General Public
17 // License along with this library; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
23 // 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->myQuadStruct.reset();
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() );
161 //================================================================================
163 * \brief Make \a botE be the BOTTOM_SIDE of \a quad.
164 * Return false if the BOTTOM_SIDE is composite
166 //================================================================================
168 bool setBottomEdge( const TopoDS_Edge& botE,
169 faceQuadStruct::Ptr& quad,
170 const TopoDS_Shape& face)
172 quad->side[ QUAD_TOP_SIDE ]->Reverse();
173 quad->side[ QUAD_LEFT_SIDE ]->Reverse();
175 for ( size_t i = 0; i < quad->side.size(); ++i )
177 StdMeshers_FaceSide* quadSide = quad->side[i];
178 for ( int iE = 0; iE < quadSide->NbEdges(); ++iE )
179 if ( botE.IsSame( quadSide->Edge( iE )))
181 if ( quadSide->NbEdges() > 1 )
184 i = quad->side.size(); // to quit from the outer loop
188 if ( edgeIndex != QUAD_BOTTOM_SIDE )
189 quad->shift( quad->side.size() - edgeIndex, /*keepUnitOri=*/false );
191 quad->face = TopoDS::Face( face );
196 //================================================================================
198 * \brief Return iterator pointing to node column for the given parameter
199 * \param columnsMap - node column map
200 * \param parameter - parameter
201 * \retval TParam2ColumnMap::iterator - result
203 * it returns closest left column
205 //================================================================================
207 TParam2ColumnIt getColumn( const TParam2ColumnMap* columnsMap,
208 const double parameter )
210 TParam2ColumnIt u_col = columnsMap->upper_bound( parameter );
211 if ( u_col != columnsMap->begin() )
213 return u_col; // return left column
216 //================================================================================
218 * \brief Return nodes around given parameter and a ratio
219 * \param column - node column
220 * \param param - parameter
221 * \param node1 - lower node
222 * \param node2 - upper node
223 * \retval double - ratio
225 //================================================================================
227 double getRAndNodes( const TNodeColumn* column,
229 const SMDS_MeshNode* & node1,
230 const SMDS_MeshNode* & node2)
232 if ( param >= 1.0 || column->size() == 1) {
233 node1 = node2 = column->back();
237 int i = int( param * ( column->size() - 1 ));
238 double u0 = double( i )/ double( column->size() - 1 );
239 double r = ( param - u0 ) * ( column->size() - 1 );
241 node1 = (*column)[ i ];
242 node2 = (*column)[ i + 1];
246 //================================================================================
248 * \brief Compute boundary parameters of face parts
249 * \param nbParts - nb of parts to split columns into
250 * \param columnsMap - node columns of the face to split
251 * \param params - computed parameters
253 //================================================================================
255 void splitParams( const int nbParts,
256 const TParam2ColumnMap* columnsMap,
257 vector< double > & params)
260 params.reserve( nbParts + 1 );
261 TParam2ColumnIt last_par_col = --columnsMap->end();
262 double par = columnsMap->begin()->first; // 0.
263 double parLast = last_par_col->first;
264 params.push_back( par );
265 for ( int i = 0; i < nbParts - 1; ++ i )
267 double partSize = ( parLast - par ) / double ( nbParts - i );
268 TParam2ColumnIt par_col = getColumn( columnsMap, par + partSize );
269 if ( par_col->first == par ) {
271 if ( par_col == last_par_col ) {
272 while ( i < nbParts - 1 )
273 params.push_back( par + partSize * i++ );
277 par = par_col->first;
278 params.push_back( par );
280 params.push_back( parLast ); // 1.
283 //================================================================================
285 * \brief Return coordinate system for z-th layer of nodes
287 //================================================================================
289 gp_Ax2 getLayerCoordSys(const int z,
290 const vector< const TNodeColumn* >& columns,
293 // gravity center of a layer
296 for ( int i = 0; i < columns.size(); ++i )
298 O += gpXYZ( (*columns[ i ])[ z ]);
299 if ( vertexCol < 0 &&
300 columns[ i ]->front()->GetPosition()->GetTypeOfPosition() == SMDS_TOP_VERTEX )
307 int iPrev = columns.size()-1;
308 for ( int i = 0; i < columns.size(); ++i )
310 gp_Vec v1( O, gpXYZ( (*columns[ iPrev ])[ z ]));
311 gp_Vec v2( O, gpXYZ( (*columns[ i ] )[ z ]));
316 if ( vertexCol >= 0 )
318 O = gpXYZ( (*columns[ vertexCol ])[ z ]);
320 if ( xColumn < 0 || xColumn >= columns.size() )
322 // select a column for X dir
324 for ( int i = 0; i < columns.size(); ++i )
326 double dist = ( O - gpXYZ((*columns[ i ])[ z ])).SquareModulus();
327 if ( dist > maxDist )
336 gp_Vec X( O, gpXYZ( (*columns[ xColumn ])[ z ]));
338 return gp_Ax2( O, Z, X);
341 //================================================================================
343 * \brief Removes submeshes that are or can be meshed with regular grid from given list
344 * \retval int - nb of removed submeshes
346 //================================================================================
348 int removeQuasiQuads(list< SMESH_subMesh* >& notQuadSubMesh,
349 SMESH_MesherHelper* helper,
350 StdMeshers_Quadrangle_2D* quadAlgo)
353 //SMESHDS_Mesh* mesh = notQuadSubMesh.front()->GetFather()->GetMeshDS();
354 list< SMESH_subMesh* >::iterator smIt = notQuadSubMesh.begin();
355 while ( smIt != notQuadSubMesh.end() )
357 SMESH_subMesh* faceSm = *smIt;
358 SMESHDS_SubMesh* faceSmDS = faceSm->GetSubMeshDS();
359 int nbQuads = faceSmDS ? faceSmDS->NbElements() : 0;
362 toRemove = helper->IsStructured( faceSm );
364 toRemove = quadAlgo->CheckNbEdges( *helper->GetMesh(),
365 faceSm->GetSubShape() );
366 nbRemoved += toRemove;
368 smIt = notQuadSubMesh.erase( smIt );
376 //================================================================================
378 * \brief Return and angle between two EDGEs
379 * \return double - the angle normalized so that
386 //================================================================================
388 double normAngle(const TopoDS_Edge & E1, const TopoDS_Edge & E2, const TopoDS_Face & F)
390 return SMESH_MesherHelper::GetAngle( E1, E2, F ) / ( 0.5 * M_PI );
393 //================================================================================
395 * Consider continuous straight EDGES as one side - mark them to unite
397 //================================================================================
399 int countNbSides( const Prism_3D::TPrismTopo & thePrism,
400 vector<int> & nbUnitePerEdge,
401 vector< double > & edgeLength)
403 int nbEdges = thePrism.myNbEdgesInWires.front(); // nb outer edges
404 int nbSides = nbEdges;
407 list< TopoDS_Edge >::const_iterator edgeIt = thePrism.myBottomEdges.begin();
408 std::advance( edgeIt, nbEdges-1 );
409 TopoDS_Edge prevE = *edgeIt;
410 // bool isPrevStraight = SMESH_Algo::IsStraight( prevE );
411 int iPrev = nbEdges - 1;
413 int iUnite = -1; // the first of united EDGEs
415 // analyse angles between EDGEs
417 vector< bool > isCorner( nbEdges );
418 edgeIt = thePrism.myBottomEdges.begin();
419 for ( int iE = 0; iE < nbEdges; ++iE, ++edgeIt )
421 const TopoDS_Edge& curE = *edgeIt;
422 edgeLength[ iE ] = SMESH_Algo::EdgeLength( curE );
424 // double normAngle = normAngle( prevE, curE, thePrism.myBottom );
425 // isCorner[ iE ] = false;
426 // if ( normAngle < 2.0 )
428 // if ( normAngle < 0.001 ) // straight or obtuse angle
430 // // unite EDGEs in order not to put a corner of the unit quadrangle at this VERTEX
433 // nbUnitePerEdge[ iUnite ]++;
434 // nbUnitePerEdge[ iE ] = -1;
439 // isCorner[ iE ] = true;
449 // define which of corners to put on a side of the unit quadrangle
451 // edgeIt = thePrism.myBottomEdges.begin();
452 // for ( int iE = 0; iE < nbEdges; ++iE, ++edgeIt )
454 // const TopoDS_Edge& curE = *edgeIt;
455 // edgeLength[ iE ] = SMESH_Algo::EdgeLength( curE );
457 // const bool isCurStraight = SMESH_Algo::IsStraight( curE );
458 // if ( isPrevStraight && isCurStraight && SMESH_Algo::IsContinuous( prevE, curE ))
462 // nbUnitePerEdge[ iUnite ]++;
463 // nbUnitePerEdge[ iE ] = -1;
471 // isPrevStraight = isCurStraight;
478 void pointsToPython(const std::vector<gp_XYZ>& p)
481 for ( int i = SMESH_Block::ID_V000; i < p.size(); ++i )
483 cout << "mesh.AddNode( " << p[i].X() << ", "<< p[i].Y() << ", "<< p[i].Z() << ") # " << i <<" " ;
484 SMESH_Block::DumpShapeID( i, cout ) << endl;
490 //=======================================================================
491 //function : StdMeshers_Prism_3D
493 //=======================================================================
495 StdMeshers_Prism_3D::StdMeshers_Prism_3D(int hypId, int studyId, SMESH_Gen* gen)
496 :SMESH_3D_Algo(hypId, studyId, gen)
499 _shapeType = (1 << TopAbs_SOLID); // 1 bit per shape type
500 _onlyUnaryInput = false; // accept all SOLIDs at once
501 _requireDiscreteBoundary = false; // mesh FACEs and EDGEs by myself
502 _supportSubmeshes = true; // "source" FACE must be meshed by other algo
503 _neededLowerHyps[ 1 ] = true; // suppress warning on hiding a global 1D algo
504 _neededLowerHyps[ 2 ] = true; // suppress warning on hiding a global 2D algo
506 //myProjectTriangles = false;
507 mySetErrorToSM = true; // to pass an error to a sub-mesh of a current solid or not
510 //================================================================================
514 //================================================================================
516 StdMeshers_Prism_3D::~StdMeshers_Prism_3D()
519 //=======================================================================
520 //function : CheckHypothesis
522 //=======================================================================
524 bool StdMeshers_Prism_3D::CheckHypothesis(SMESH_Mesh& aMesh,
525 const TopoDS_Shape& aShape,
526 SMESH_Hypothesis::Hypothesis_Status& aStatus)
528 // Check shape geometry
530 aStatus = SMESH_Hypothesis::HYP_BAD_GEOMETRY;
532 // find not quadrangle faces
533 list< TopoDS_Shape > notQuadFaces;
534 int nbEdge, nbWire, nbFace = 0;
535 TopExp_Explorer exp( aShape, TopAbs_FACE );
536 for ( ; exp.More(); exp.Next() ) {
538 const TopoDS_Shape& face = exp.Current();
539 nbEdge = TAssocTool::Count( face, TopAbs_EDGE, 0 );
540 nbWire = TAssocTool::Count( face, TopAbs_WIRE, 0 );
541 if ( nbEdge!= 4 || nbWire!= 1 ) {
542 if ( !notQuadFaces.empty() ) {
543 if ( TAssocTool::Count( notQuadFaces.back(), TopAbs_EDGE, 0 ) != nbEdge ||
544 TAssocTool::Count( notQuadFaces.back(), TopAbs_WIRE, 0 ) != nbWire )
545 RETURN_BAD_RESULT("Different not quad faces");
547 notQuadFaces.push_back( face );
550 if ( !notQuadFaces.empty() )
552 if ( notQuadFaces.size() != 2 )
553 RETURN_BAD_RESULT("Bad nb not quad faces: " << notQuadFaces.size());
555 // check total nb faces
556 nbEdge = TAssocTool::Count( notQuadFaces.back(), TopAbs_EDGE, 0 );
557 if ( nbFace != nbEdge + 2 )
558 RETURN_BAD_RESULT("Bad nb of faces: " << nbFace << " but must be " << nbEdge + 2);
562 aStatus = SMESH_Hypothesis::HYP_OK;
566 //=======================================================================
568 //purpose : Compute mesh on a COMPOUND of SOLIDs
569 //=======================================================================
571 bool StdMeshers_Prism_3D::Compute(SMESH_Mesh& theMesh, const TopoDS_Shape& theShape)
573 SMESH_MesherHelper helper( theMesh );
576 int nbSolids = helper.Count( theShape, TopAbs_SOLID, /*skipSame=*/false );
580 TopTools_IndexedDataMapOfShapeListOfShape faceToSolids;
581 TopExp::MapShapesAndAncestors( theShape, TopAbs_FACE, TopAbs_SOLID, faceToSolids );
583 // look for meshed FACEs ("source" FACEs) that must be prism bottoms
584 list< TopoDS_Face > meshedFaces, notQuadMeshedFaces, notQuadFaces;
585 const bool meshHasQuads = ( theMesh.NbQuadrangles() > 0 );
586 //StdMeshers_Quadrangle_2D* quadAlgo = TQuadrangleAlgo::instance( this );
587 for ( int iF = 1; iF <= faceToSolids.Extent(); ++iF )
589 const TopoDS_Face& face = TopoDS::Face( faceToSolids.FindKey( iF ));
590 SMESH_subMesh* faceSM = theMesh.GetSubMesh( face );
591 if ( !faceSM->IsEmpty() )
593 if ( !meshHasQuads ||
594 !helper.IsSameElemGeometry( faceSM->GetSubMeshDS(), SMDSGeom_QUADRANGLE ) ||
595 !helper.IsStructured( faceSM )
597 notQuadMeshedFaces.push_front( face );
598 else if ( myHelper->Count( face, TopAbs_EDGE, /*ignoreSame=*/false ) != 4 )
599 meshedFaces.push_front( face );
601 meshedFaces.push_back( face );
603 // not add not quadrilateral FACE as we can't compute it
604 // else if ( !quadAlgo->CheckNbEdges( theMesh, face ))
605 // // not add not quadrilateral FACE as it can be a prism side
606 // // else if ( myHelper->Count( face, TopAbs_EDGE, /*ignoreSame=*/false ) != 4 )
608 // notQuadFaces.push_back( face );
611 // notQuadFaces are of medium priority, put them before ordinary meshed faces
612 meshedFaces.splice( meshedFaces.begin(), notQuadFaces );
613 // notQuadMeshedFaces are of highest priority, put them before notQuadFaces
614 meshedFaces.splice( meshedFaces.begin(), notQuadMeshedFaces );
616 Prism_3D::TPrismTopo prism;
620 if ( !meshedFaces.empty() )
621 prism.myBottom = meshedFaces.front();
622 return ( initPrism( prism, TopExp_Explorer( theShape, TopAbs_SOLID ).Current() ) &&
626 TopTools_MapOfShape meshedSolids;
627 list< Prism_3D::TPrismTopo > meshedPrism;
628 TopTools_ListIteratorOfListOfShape solidIt;
630 while ( meshedSolids.Extent() < nbSolids )
632 if ( _computeCanceled )
633 return toSM( error( SMESH_ComputeError::New(COMPERR_CANCELED)));
635 // compute prisms having avident computed source FACE
636 while ( !meshedFaces.empty() )
638 TopoDS_Face face = meshedFaces.front();
639 meshedFaces.pop_front();
640 TopTools_ListOfShape& solidList = faceToSolids.ChangeFromKey( face );
641 while ( !solidList.IsEmpty() )
643 TopoDS_Shape solid = solidList.First();
644 solidList.RemoveFirst();
645 if ( meshedSolids.Add( solid ))
648 prism.myBottom = face;
649 if ( !initPrism( prism, solid ) ||
653 meshedFaces.push_front( prism.myTop );
654 meshedPrism.push_back( prism );
658 if ( meshedSolids.Extent() == nbSolids )
661 // below in the loop we try to find source FACEs somehow
663 // project mesh from source FACEs of computed prisms to
664 // prisms sharing wall FACEs
665 list< Prism_3D::TPrismTopo >::iterator prismIt = meshedPrism.begin();
666 for ( ; prismIt != meshedPrism.end(); ++prismIt )
668 for ( size_t iW = 0; iW < prismIt->myWallQuads.size(); ++iW )
670 Prism_3D::TQuadList::iterator wQuad = prismIt->myWallQuads[iW].begin();
671 for ( ; wQuad != prismIt->myWallQuads[iW].end(); ++ wQuad )
673 const TopoDS_Face& wFace = (*wQuad)->face;
674 TopTools_ListOfShape& solidList = faceToSolids.ChangeFromKey( wFace );
675 solidIt.Initialize( solidList );
676 while ( solidIt.More() )
678 const TopoDS_Shape& solid = solidIt.Value();
679 if ( meshedSolids.Contains( solid )) {
680 solidList.Remove( solidIt );
681 continue; // already computed prism
683 // find a source FACE of the SOLID: it's a FACE sharing a bottom EDGE with wFace
684 const TopoDS_Edge& wEdge = (*wQuad)->side[ QUAD_TOP_SIDE ]->Edge(0);
685 PShapeIteratorPtr faceIt = myHelper->GetAncestors( wEdge, *myHelper->GetMesh(),
687 while ( const TopoDS_Shape* f = faceIt->next() )
689 const TopoDS_Face& candidateF = TopoDS::Face( *f );
691 prism.myBottom = candidateF;
692 mySetErrorToSM = false;
693 if ( !myHelper->IsSubShape( candidateF, prismIt->myShape3D ) &&
694 !myHelper->GetMesh()->GetSubMesh( candidateF )->IsMeshComputed() &&
695 initPrism( prism, solid ) &&
696 project2dMesh( prismIt->myBottom, candidateF))
698 mySetErrorToSM = true;
699 if ( !compute( prism ))
701 meshedFaces.push_front( prism.myTop );
702 meshedFaces.push_front( prism.myBottom );
703 meshedPrism.push_back( prism );
704 meshedSolids.Add( solid );
708 mySetErrorToSM = true;
710 if ( meshedSolids.Contains( solid ))
711 solidList.Remove( solidIt );
717 if ( !meshedFaces.empty() )
718 break; // to compute prisms with avident sources
721 // find FACEs with local 1D hyps, which has to be computed by now,
722 // or at least any computed FACEs
723 for ( int iF = 1; ( meshedFaces.empty() && iF < faceToSolids.Extent() ); ++iF )
725 const TopoDS_Face& face = TopoDS::Face( faceToSolids.FindKey( iF ));
726 const TopTools_ListOfShape& solidList = faceToSolids.FindFromKey( face );
727 if ( solidList.IsEmpty() ) continue;
728 SMESH_subMesh* faceSM = theMesh.GetSubMesh( face );
729 if ( !faceSM->IsEmpty() )
731 meshedFaces.push_back( face ); // lower priority
735 bool allSubMeComputed = true;
736 SMESH_subMeshIteratorPtr smIt = faceSM->getDependsOnIterator(false,true);
737 while ( smIt->more() && allSubMeComputed )
738 allSubMeComputed = smIt->next()->IsMeshComputed();
739 if ( allSubMeComputed )
741 faceSM->ComputeStateEngine( SMESH_subMesh::COMPUTE );
742 if ( !faceSM->IsEmpty() )
743 meshedFaces.push_front( face ); // higher priority
745 faceSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
751 // TODO. there are other ways to find out the source FACE:
752 // propagation, topological similarity, ect.
754 // simply try to mesh all not meshed SOLIDs
755 if ( meshedFaces.empty() )
757 for ( TopExp_Explorer solid( theShape, TopAbs_SOLID ); solid.More(); solid.Next() )
759 mySetErrorToSM = false;
761 if ( !meshedSolids.Contains( solid.Current() ) &&
762 initPrism( prism, solid.Current() ))
764 mySetErrorToSM = true;
765 if ( !compute( prism ))
767 meshedFaces.push_front( prism.myTop );
768 meshedFaces.push_front( prism.myBottom );
769 meshedPrism.push_back( prism );
770 meshedSolids.Add( solid.Current() );
772 mySetErrorToSM = true;
776 if ( meshedFaces.empty() ) // set same error to 10 not-computed solids
778 SMESH_ComputeErrorPtr err = SMESH_ComputeError::New
779 ( COMPERR_BAD_INPUT_MESH, "No meshed source face found", this );
781 const int maxNbErrors = 10; // limit nb errors not to overload the Compute dialog
782 TopExp_Explorer solid( theShape, TopAbs_SOLID );
783 for ( int i = 0; ( i < maxNbErrors && solid.More() ); ++i, solid.Next() )
784 if ( !meshedSolids.Contains( solid.Current() ))
786 SMESH_subMesh* sm = theMesh.GetSubMesh( solid.Current() );
787 sm->GetComputeError() = err;
795 //================================================================================
797 * \brief Find wall faces by bottom edges
799 //================================================================================
801 bool StdMeshers_Prism_3D::getWallFaces( Prism_3D::TPrismTopo & thePrism,
802 const int totalNbFaces)
804 thePrism.myWallQuads.clear();
806 SMESH_Mesh* mesh = myHelper->GetMesh();
808 StdMeshers_Quadrangle_2D* quadAlgo = TQuadrangleAlgo::instance( this, myHelper );
810 TopTools_MapOfShape faceMap;
811 TopTools_IndexedDataMapOfShapeListOfShape edgeToFaces;
812 TopExp::MapShapesAndAncestors( thePrism.myShape3D,
813 TopAbs_EDGE, TopAbs_FACE, edgeToFaces );
815 // ------------------------------
816 // Get the 1st row of wall FACEs
817 // ------------------------------
819 list< TopoDS_Edge >::iterator edge = thePrism.myBottomEdges.begin();
820 std::list< int >::iterator nbE = thePrism.myNbEdgesInWires.begin();
823 while ( edge != thePrism.myBottomEdges.end() )
826 if ( BRep_Tool::Curve( *edge, f,l ).IsNull() )
828 edge = thePrism.myBottomEdges.erase( edge );
834 TopTools_ListIteratorOfListOfShape faceIt( edgeToFaces.FindFromKey( *edge ));
835 for ( ; faceIt.More(); faceIt.Next() )
837 const TopoDS_Face& face = TopoDS::Face( faceIt.Value() );
838 if ( !thePrism.myBottom.IsSame( face ))
840 Prism_3D::TQuadList quadList( 1, quadAlgo->CheckNbEdges( *mesh, face ));
841 if ( !quadList.back() )
842 return toSM( error(TCom("Side face #") << shapeID( face )
843 << " not meshable with quadrangles"));
844 if ( ! setBottomEdge( *edge, quadList.back(), face ))
845 return toSM( error(TCom("Composite 'horizontal' edges are not supported")));
846 thePrism.myWallQuads.push_back( quadList );
860 // -------------------------
861 // Find the rest wall FACEs
862 // -------------------------
864 // Compose a vector of indixes of right neighbour FACE for each wall FACE
865 // that is not so evident in case of several WIREs in the bottom FACE
866 thePrism.myRightQuadIndex.clear();
867 for ( size_t i = 0; i < thePrism.myWallQuads.size(); ++i )
868 thePrism.myRightQuadIndex.push_back( i+1 );
869 list< int >::iterator nbEinW = thePrism.myNbEdgesInWires.begin();
870 for ( int iLeft = 0; nbEinW != thePrism.myNbEdgesInWires.end(); ++nbEinW )
872 thePrism.myRightQuadIndex[ iLeft + *nbEinW - 1 ] = iLeft; // 1st EDGE index of a current WIRE
876 while ( totalNbFaces - faceMap.Extent() > 2 )
878 // find wall FACEs adjacent to each of wallQuads by the right side EDGE
881 nbKnownFaces = faceMap.Extent();
882 StdMeshers_FaceSide *rightSide, *topSide; // sides of the quad
883 for ( size_t i = 0; i < thePrism.myWallQuads.size(); ++i )
885 rightSide = thePrism.myWallQuads[i].back()->side[ QUAD_RIGHT_SIDE ];
886 for ( int iE = 0; iE < rightSide->NbEdges(); ++iE ) // rightSide can be composite
888 const TopoDS_Edge & rightE = rightSide->Edge( iE );
889 TopTools_ListIteratorOfListOfShape face( edgeToFaces.FindFromKey( rightE ));
890 for ( ; face.More(); face.Next() )
891 if ( faceMap.Add( face.Value() ))
893 // a new wall FACE encountered, store it in thePrism.myWallQuads
894 const int iRight = thePrism.myRightQuadIndex[i];
895 topSide = thePrism.myWallQuads[ iRight ].back()->side[ QUAD_TOP_SIDE ];
896 const TopoDS_Edge& newBotE = topSide->Edge(0);
897 const TopoDS_Shape& newWallF = face.Value();
898 thePrism.myWallQuads[ iRight ].push_back( quadAlgo->CheckNbEdges( *mesh, newWallF ));
899 if ( !thePrism.myWallQuads[ iRight ].back() )
900 return toSM( error(TCom("Side face #") << shapeID( newWallF ) <<
901 " not meshable with quadrangles"));
902 if ( ! setBottomEdge( newBotE, thePrism.myWallQuads[ iRight ].back(), newWallF ))
903 return toSM( error(TCom("Composite 'horizontal' edges are not supported")));
907 } while ( nbKnownFaces != faceMap.Extent() );
909 // find wall FACEs adjacent to each of thePrism.myWallQuads by the top side EDGE
910 if ( totalNbFaces - faceMap.Extent() > 2 )
912 for ( size_t i = 0; i < thePrism.myWallQuads.size(); ++i )
914 StdMeshers_FaceSide* topSide = thePrism.myWallQuads[i].back()->side[ QUAD_TOP_SIDE ];
915 const TopoDS_Edge & topE = topSide->Edge( 0 );
916 if ( topSide->NbEdges() > 1 )
917 return toSM( error(COMPERR_BAD_SHAPE, TCom("Side face #") <<
918 shapeID( thePrism.myWallQuads[i].back()->face )
919 << " has a composite top edge"));
920 TopTools_ListIteratorOfListOfShape faceIt( edgeToFaces.FindFromKey( topE ));
921 for ( ; faceIt.More(); faceIt.Next() )
922 if ( faceMap.Add( faceIt.Value() ))
924 // a new wall FACE encountered, store it in wallQuads
925 thePrism.myWallQuads[ i ].push_back( quadAlgo->CheckNbEdges( *mesh, faceIt.Value() ));
926 if ( !thePrism.myWallQuads[ i ].back() )
927 return toSM( error(TCom("Side face #") << shapeID( faceIt.Value() ) <<
928 " not meshable with quadrangles"));
929 if ( ! setBottomEdge( topE, thePrism.myWallQuads[ i ].back(), faceIt.Value() ))
930 return toSM( error(TCom("Composite 'horizontal' edges are not supported")));
931 if ( totalNbFaces - faceMap.Extent() == 2 )
933 i = thePrism.myWallQuads.size(); // to quit from the outer loop
939 } // while ( totalNbFaces - faceMap.Extent() > 2 )
941 // ------------------
943 // ------------------
945 if ( thePrism.myTop.IsNull() )
947 // now only top and bottom FACEs are not in the faceMap
948 faceMap.Add( thePrism.myBottom );
949 for ( TopExp_Explorer f( thePrism.myShape3D, TopAbs_FACE );f.More(); f.Next() )
950 if ( !faceMap.Contains( f.Current() )) {
951 thePrism.myTop = TopoDS::Face( f.Current() );
954 if ( thePrism.myTop.IsNull() )
955 return toSM( error("Top face not found"));
958 // Check that the top FACE shares all the top EDGEs
959 for ( size_t i = 0; i < thePrism.myWallQuads.size(); ++i )
961 StdMeshers_FaceSide* topSide = thePrism.myWallQuads[i].back()->side[ QUAD_TOP_SIDE ];
962 const TopoDS_Edge & topE = topSide->Edge( 0 );
963 if ( !myHelper->IsSubShape( topE, thePrism.myTop ))
964 return toSM( error( TCom("Wrong source face (#") << shapeID( thePrism.myBottom )));
970 //=======================================================================
972 //purpose : Compute mesh on a SOLID
973 //=======================================================================
975 bool StdMeshers_Prism_3D::compute(const Prism_3D::TPrismTopo& thePrism)
977 myHelper->IsQuadraticSubMesh( thePrism.myShape3D );
978 if ( _computeCanceled )
979 return toSM( error( SMESH_ComputeError::New(COMPERR_CANCELED)));
981 // Make all side FACEs of thePrism meshed with quads
982 if ( !computeWalls( thePrism ))
985 // Analyse mesh and geometry to find all block sub-shapes and submeshes
986 if ( !myBlock.Init( myHelper, thePrism ))
987 return toSM( error( myBlock.GetError()));
989 SMESHDS_Mesh* meshDS = myHelper->GetMeshDS();
991 int volumeID = meshDS->ShapeToIndex( thePrism.myShape3D );
993 // Try to get gp_Trsf to get all nodes from bottom ones
994 vector<gp_Trsf> trsf;
995 gp_Trsf bottomToTopTrsf;
996 if ( !myBlock.GetLayersTransformation( trsf, thePrism ))
998 else if ( !trsf.empty() )
999 bottomToTopTrsf = trsf.back();
1001 // To compute coordinates of a node inside a block, it is necessary to know
1002 // 1. normalized parameters of the node by which
1003 // 2. coordinates of node projections on all block sub-shapes are computed
1005 // So we fill projections on vertices at once as they are same for all nodes
1006 myShapeXYZ.resize( myBlock.NbSubShapes() );
1007 for ( int iV = SMESH_Block::ID_FirstV; iV < SMESH_Block::ID_FirstE; ++iV ) {
1008 myBlock.VertexPoint( iV, myShapeXYZ[ iV ]);
1009 SHOWYXZ("V point " <<iV << " ", myShapeXYZ[ iV ]);
1012 // Projections on the top and bottom faces are taken from nodes existing
1013 // on these faces; find correspondence between bottom and top nodes
1014 myBotToColumnMap.clear();
1015 if ( !assocOrProjBottom2Top( bottomToTopTrsf ) ) // it also fills myBotToColumnMap
1019 // Create nodes inside the block
1021 // try to use transformation (issue 0020680)
1022 if ( !trsf.empty() )
1024 // loop on nodes inside the bottom face
1025 TNode2ColumnMap::iterator bot_column = myBotToColumnMap.begin();
1026 for ( ; bot_column != myBotToColumnMap.end(); ++bot_column )
1028 const Prism_3D::TNode& tBotNode = bot_column->first; // bottom TNode
1029 if ( tBotNode.GetPositionType() != SMDS_TOP_FACE )
1030 continue; // node is not inside face
1032 // column nodes; middle part of the column are zero pointers
1033 TNodeColumn& column = bot_column->second;
1034 TNodeColumn::iterator columnNodes = column.begin();
1035 for ( int z = 0; columnNodes != column.end(); ++columnNodes, ++z)
1037 const SMDS_MeshNode* & node = *columnNodes;
1038 if ( node ) continue; // skip bottom or top node
1040 gp_XYZ coords = tBotNode.GetCoords();
1041 trsf[z-1].Transforms( coords );
1042 node = meshDS->AddNode( coords.X(), coords.Y(), coords.Z() );
1043 meshDS->SetNodeInVolume( node, volumeID );
1045 } // loop on bottom nodes
1047 else // use block approach
1049 // loop on nodes inside the bottom face
1050 Prism_3D::TNode prevBNode;
1051 TNode2ColumnMap::iterator bot_column = myBotToColumnMap.begin();
1052 for ( ; bot_column != myBotToColumnMap.end(); ++bot_column )
1054 const Prism_3D::TNode& tBotNode = bot_column->first; // bottom TNode
1055 if ( tBotNode.GetPositionType() != SMDS_TOP_FACE )
1056 continue; // node is not inside the FACE
1058 // column nodes; middle part of the column are zero pointers
1059 TNodeColumn& column = bot_column->second;
1061 gp_XYZ botParams, topParams;
1062 if ( !tBotNode.HasParams() )
1064 // compute bottom node parameters
1065 gp_XYZ paramHint(-1,-1,-1);
1066 if ( prevBNode.IsNeighbor( tBotNode ))
1067 paramHint = prevBNode.GetParams();
1068 if ( !myBlock.ComputeParameters( tBotNode.GetCoords(), tBotNode.ChangeParams(),
1069 ID_BOT_FACE, paramHint ))
1070 return toSM( error(TCom("Can't compute normalized parameters for node ")
1071 << tBotNode.myNode->GetID() << " on the face #"
1072 << myBlock.SubMesh( ID_BOT_FACE )->GetId() ));
1073 prevBNode = tBotNode;
1075 botParams = topParams = tBotNode.GetParams();
1076 topParams.SetZ( 1 );
1078 // compute top node parameters
1079 if ( column.size() > 2 ) {
1080 gp_Pnt topCoords = gpXYZ( column.back() );
1081 if ( !myBlock.ComputeParameters( topCoords, topParams, ID_TOP_FACE, topParams ))
1082 return toSM( error(TCom("Can't compute normalized parameters ")
1083 << "for node " << column.back()->GetID()
1084 << " on the face #"<< column.back()->getshapeId() ));
1087 else // top nodes are created by projection using parameters
1089 botParams = topParams = tBotNode.GetParams();
1090 topParams.SetZ( 1 );
1093 myShapeXYZ[ ID_BOT_FACE ] = tBotNode.GetCoords();
1094 myShapeXYZ[ ID_TOP_FACE ] = gpXYZ( column.back() );
1097 TNodeColumn::iterator columnNodes = column.begin();
1098 for ( int z = 0; columnNodes != column.end(); ++columnNodes, ++z)
1100 const SMDS_MeshNode* & node = *columnNodes;
1101 if ( node ) continue; // skip bottom or top node
1103 // params of a node to create
1104 double rz = (double) z / (double) ( column.size() - 1 );
1105 gp_XYZ params = botParams * ( 1 - rz ) + topParams * rz;
1107 // set coords on all faces and nodes
1108 const int nbSideFaces = 4;
1109 int sideFaceIDs[nbSideFaces] = { SMESH_Block::ID_Fx0z,
1110 SMESH_Block::ID_Fx1z,
1111 SMESH_Block::ID_F0yz,
1112 SMESH_Block::ID_F1yz };
1113 for ( int iF = 0; iF < nbSideFaces; ++iF )
1114 if ( !setFaceAndEdgesXYZ( sideFaceIDs[ iF ], params, z ))
1117 // compute coords for a new node
1119 if ( !SMESH_Block::ShellPoint( params, myShapeXYZ, coords ))
1120 return toSM( error("Can't compute coordinates by normalized parameters"));
1122 // if ( !meshDS->MeshElements( volumeID ) ||
1123 // meshDS->MeshElements( volumeID )->NbNodes() == 0 )
1124 // pointsToPython(myShapeXYZ);
1125 SHOWYXZ("TOPFacePoint ",myShapeXYZ[ ID_TOP_FACE]);
1126 SHOWYXZ("BOT Node "<< tBotNode.myNode->GetID(),gpXYZ(tBotNode.myNode));
1127 SHOWYXZ("ShellPoint ",coords);
1130 node = meshDS->AddNode( coords.X(), coords.Y(), coords.Z() );
1131 meshDS->SetNodeInVolume( node, volumeID );
1133 } // loop on bottom nodes
1138 SMESHDS_SubMesh* smDS = myBlock.SubMeshDS( ID_BOT_FACE );
1139 if ( !smDS ) return toSM( error(COMPERR_BAD_INPUT_MESH, "Null submesh"));
1141 // loop on bottom mesh faces
1142 SMDS_ElemIteratorPtr faceIt = smDS->GetElements();
1143 while ( faceIt->more() )
1145 const SMDS_MeshElement* face = faceIt->next();
1146 if ( !face || face->GetType() != SMDSAbs_Face )
1149 // find node columns for each node
1150 int nbNodes = face->NbCornerNodes();
1151 vector< const TNodeColumn* > columns( nbNodes );
1152 for ( int i = 0; i < nbNodes; ++i )
1154 const SMDS_MeshNode* n = face->GetNode( i );
1155 if ( n->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE ) {
1156 TNode2ColumnMap::iterator bot_column = myBotToColumnMap.find( n );
1157 if ( bot_column == myBotToColumnMap.end() )
1158 return toSM( error(TCom("No nodes found above node ") << n->GetID() ));
1159 columns[ i ] = & bot_column->second;
1162 columns[ i ] = myBlock.GetNodeColumn( n );
1163 if ( !columns[ i ] )
1164 return toSM( error(TCom("No side nodes found above node ") << n->GetID() ));
1168 AddPrisms( columns, myHelper );
1170 } // loop on bottom mesh faces
1173 myBotToColumnMap.clear();
1179 //=======================================================================
1180 //function : computeWalls
1181 //purpose : Compute 2D mesh on walls FACEs of a prism
1182 //=======================================================================
1184 bool StdMeshers_Prism_3D::computeWalls(const Prism_3D::TPrismTopo& thePrism)
1186 SMESH_Mesh* mesh = myHelper->GetMesh();
1187 SMESHDS_Mesh* meshDS = myHelper->GetMeshDS();
1188 DBGOUT( endl << "COMPUTE Prism " << meshDS->ShapeToIndex( thePrism.myShape3D ));
1190 TProjction1dAlgo* projector1D = TProjction1dAlgo::instance( this );
1191 StdMeshers_Quadrangle_2D* quadAlgo = TQuadrangleAlgo::instance( this, myHelper );
1193 SMESH_HypoFilter hyp1dFilter( SMESH_HypoFilter::IsAlgo(),/*not=*/true);
1194 hyp1dFilter.And( SMESH_HypoFilter::HasDim( 1 ));
1195 hyp1dFilter.And( SMESH_HypoFilter::IsMoreLocalThan( thePrism.myShape3D, *mesh ));
1197 // Discretize equally 'vertical' EDGEs
1198 // -----------------------------------
1199 // find source FACE sides for projection: either already computed ones or
1200 // the 'most composite' ones
1201 multimap< int, int > wgt2quad;
1202 for ( size_t iW = 0; iW != thePrism.myWallQuads.size(); ++iW )
1204 Prism_3D::TQuadList::const_iterator quad = thePrism.myWallQuads[iW].begin();
1205 int wgt = 0; // "weight"
1206 for ( ; quad != thePrism.myWallQuads[iW].end(); ++quad )
1208 StdMeshers_FaceSide* lftSide = (*quad)->side[ QUAD_LEFT_SIDE ];
1209 for ( int i = 0; i < lftSide->NbEdges(); ++i )
1212 const TopoDS_Edge& E = lftSide->Edge(i);
1213 if ( mesh->GetSubMesh( E )->IsMeshComputed() )
1215 else if ( mesh->GetHypothesis( E, hyp1dFilter, true )) // local hypothesis!
1219 wgt2quad.insert( make_pair( wgt, iW ));
1221 // in quadratic mesh, pass ignoreMediumNodes to quad sides
1222 if ( myHelper->GetIsQuadratic() )
1224 quad = thePrism.myWallQuads[iW].begin();
1225 for ( ; quad != thePrism.myWallQuads[iW].end(); ++quad )
1226 for ( int i = 0; i < NB_QUAD_SIDES; ++i )
1227 (*quad)->side[ i ]->SetIgnoreMediumNodes( true );
1231 // Project 'vertical' EDGEs, from left to right
1232 multimap< int, int >::reverse_iterator w2q = wgt2quad.rbegin();
1233 for ( ; w2q != wgt2quad.rend(); ++w2q )
1235 const int iW = w2q->second;
1236 const Prism_3D::TQuadList& quads = thePrism.myWallQuads[ iW ];
1237 Prism_3D::TQuadList::const_iterator quad = quads.begin();
1238 for ( ; quad != quads.end(); ++quad )
1240 StdMeshers_FaceSide* rgtSide = (*quad)->side[ QUAD_RIGHT_SIDE ]; // tgt
1241 StdMeshers_FaceSide* lftSide = (*quad)->side[ QUAD_LEFT_SIDE ]; // src
1242 bool swapLeftRight = ( lftSide->NbSegments( /*update=*/true ) == 0 &&
1243 rgtSide->NbSegments( /*update=*/true ) > 0 );
1244 if ( swapLeftRight )
1245 std::swap( lftSide, rgtSide );
1247 // assure that all the source (left) EDGEs are meshed
1248 int nbSrcSegments = 0;
1249 for ( int i = 0; i < lftSide->NbEdges(); ++i )
1251 const TopoDS_Edge& srcE = lftSide->Edge(i);
1252 SMESH_subMesh* srcSM = mesh->GetSubMesh( srcE );
1253 if ( !srcSM->IsMeshComputed() ) {
1254 DBGOUT( "COMPUTE V edge " << srcSM->GetId() );
1255 srcSM->ComputeSubMeshStateEngine( SMESH_subMesh::COMPUTE );
1256 srcSM->ComputeStateEngine ( SMESH_subMesh::COMPUTE );
1257 if ( !srcSM->IsMeshComputed() )
1258 return toSM( error( "Can't compute 1D mesh" ));
1260 nbSrcSegments += srcSM->GetSubMeshDS()->NbElements();
1262 // check target EDGEs
1263 int nbTgtMeshed = 0, nbTgtSegments = 0;
1264 vector< bool > isTgtEdgeComputed( rgtSide->NbEdges() );
1265 for ( int i = 0; i < rgtSide->NbEdges(); ++i )
1267 const TopoDS_Edge& tgtE = rgtSide->Edge(i);
1268 SMESH_subMesh* tgtSM = mesh->GetSubMesh( tgtE );
1269 if (( isTgtEdgeComputed[ i ] = tgtSM->IsMeshComputed() )) {
1271 nbTgtSegments += tgtSM->GetSubMeshDS()->NbElements();
1274 if ( rgtSide->NbEdges() == nbTgtMeshed ) // all tgt EDGEs meshed
1276 if ( nbTgtSegments != nbSrcSegments )
1278 for ( int i = 0; i < lftSide->NbEdges(); ++i )
1279 addBadInputElements( meshDS->MeshElements( lftSide->Edge( i )));
1280 for ( int i = 0; i < rgtSide->NbEdges(); ++i )
1281 addBadInputElements( meshDS->MeshElements( rgtSide->Edge( i )));
1282 return toSM( error( TCom("Different nb of segment on logically vertical edges #")
1283 << shapeID( lftSide->Edge(0) ) << " and #"
1284 << shapeID( rgtSide->Edge(0) ) << ": "
1285 << nbSrcSegments << " != " << nbTgtSegments ));
1289 // Compute 'vertical projection'
1290 if ( nbTgtMeshed == 0 )
1292 // compute nodes on target VERTEXes
1293 const UVPtStructVec& srcNodeStr = lftSide->GetUVPtStruct();
1294 if ( srcNodeStr.size() == 0 )
1295 return toSM( error( TCom("Invalid node positions on edge #") <<
1296 shapeID( lftSide->Edge(0) )));
1297 vector< SMDS_MeshNode* > newNodes( srcNodeStr.size() );
1298 for ( int is2ndV = 0; is2ndV < 2; ++is2ndV )
1300 const TopoDS_Edge& E = rgtSide->Edge( is2ndV ? rgtSide->NbEdges()-1 : 0 );
1301 TopoDS_Vertex v = myHelper->IthVertex( is2ndV, E );
1302 mesh->GetSubMesh( v )->ComputeStateEngine( SMESH_subMesh::COMPUTE );
1303 const SMDS_MeshNode* n = SMESH_Algo::VertexNode( v, meshDS );
1304 newNodes[ is2ndV ? 0 : newNodes.size()-1 ] = (SMDS_MeshNode*) n;
1307 // compute nodes on target EDGEs
1308 DBGOUT( "COMPUTE V edge (proj) " << shapeID( lftSide->Edge(0)));
1309 rgtSide->Reverse(); // direct it same as the lftSide
1310 myHelper->SetElementsOnShape( false ); // myHelper holds the prism shape
1311 TopoDS_Edge tgtEdge;
1312 for ( size_t iN = 1; iN < srcNodeStr.size()-1; ++iN ) // add nodes
1314 gp_Pnt p = rgtSide->Value3d ( srcNodeStr[ iN ].normParam );
1315 double u = rgtSide->Parameter( srcNodeStr[ iN ].normParam, tgtEdge );
1316 newNodes[ iN ] = meshDS->AddNode( p.X(), p.Y(), p.Z() );
1317 meshDS->SetNodeOnEdge( newNodes[ iN ], tgtEdge, u );
1319 for ( size_t iN = 1; iN < srcNodeStr.size(); ++iN ) // add segments
1321 // find an EDGE to set a new segment
1322 std::pair<int, TopAbs_ShapeEnum> id2type =
1323 myHelper->GetMediumPos( newNodes[ iN-1 ], newNodes[ iN ] );
1324 if ( id2type.second != TopAbs_EDGE )
1326 // new nodes are on different EDGEs; put one of them on VERTEX
1327 const int edgeIndex = rgtSide->EdgeIndex( srcNodeStr[ iN-1 ].normParam );
1328 const double vertexParam = rgtSide->LastParameter( edgeIndex );
1329 const gp_Pnt p = BRep_Tool::Pnt( rgtSide->LastVertex( edgeIndex ));
1330 const int isPrev = ( Abs( srcNodeStr[ iN-1 ].normParam - vertexParam ) <
1331 Abs( srcNodeStr[ iN ].normParam - vertexParam ));
1332 meshDS->UnSetNodeOnShape( newNodes[ iN-isPrev ] );
1333 meshDS->SetNodeOnVertex ( newNodes[ iN-isPrev ], rgtSide->LastVertex( edgeIndex ));
1334 meshDS->MoveNode ( newNodes[ iN-isPrev ], p.X(), p.Y(), p.Z() );
1335 id2type.first = newNodes[ iN-(1-isPrev) ]->getshapeId();
1337 SMDS_MeshElement* newEdge = myHelper->AddEdge( newNodes[ iN-1 ], newNodes[ iN ] );
1338 meshDS->SetMeshElementOnShape( newEdge, id2type.first );
1340 myHelper->SetElementsOnShape( true );
1341 for ( int i = 0; i < rgtSide->NbEdges(); ++i ) // update state of sub-meshes
1343 const TopoDS_Edge& E = rgtSide->Edge( i );
1344 SMESH_subMesh* tgtSM = mesh->GetSubMesh( E );
1345 tgtSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
1348 // to continue projection from the just computed side as a source
1349 if ( !swapLeftRight && rgtSide->NbEdges() > 1 && w2q->second == iW )
1351 std::pair<int,int> wgt2quadKeyVal( w2q->first + 1, thePrism.myRightQuadIndex[ iW ]);
1352 wgt2quad.insert( wgt2quadKeyVal ); // it will be skipped by ++w2q
1353 wgt2quad.insert( wgt2quadKeyVal );
1354 w2q = wgt2quad.rbegin();
1359 // HOPE assigned hypotheses are OK, so that equal nb of segments will be generated
1360 //return toSM( error("Partial projection not implemented"));
1362 } // loop on quads of a composite wall side
1363 } // loop on the ordered wall sides
1367 for ( size_t iW = 0; iW != thePrism.myWallQuads.size(); ++iW )
1369 Prism_3D::TQuadList::const_iterator quad = thePrism.myWallQuads[iW].begin();
1370 for ( ; quad != thePrism.myWallQuads[iW].end(); ++quad )
1372 // Top EDGEs must be projections from the bottom ones
1373 // to compute stuctured quad mesh on wall FACEs
1374 // ---------------------------------------------------
1376 const TopoDS_Edge& botE = (*quad)->side[ QUAD_BOTTOM_SIDE ]->Edge(0);
1377 const TopoDS_Edge& topE = (*quad)->side[ QUAD_TOP_SIDE ]->Edge(0);
1378 SMESH_subMesh* botSM = mesh->GetSubMesh( botE );
1379 SMESH_subMesh* topSM = mesh->GetSubMesh( topE );
1380 SMESH_subMesh* srcSM = botSM;
1381 SMESH_subMesh* tgtSM = topSM;
1382 if ( !srcSM->IsMeshComputed() && tgtSM->IsMeshComputed() )
1383 std::swap( srcSM, tgtSM );
1385 if ( !srcSM->IsMeshComputed() )
1387 DBGOUT( "COMPUTE H edge " << srcSM->GetId());
1388 srcSM->ComputeSubMeshStateEngine( SMESH_subMesh::COMPUTE ); // nodes on VERTEXes
1389 srcSM->ComputeStateEngine( SMESH_subMesh::COMPUTE ); // segments on the EDGE
1391 srcSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
1393 if ( tgtSM->IsMeshComputed() &&
1394 tgtSM->GetSubMeshDS()->NbNodes() != srcSM->GetSubMeshDS()->NbNodes() )
1396 // the top EDGE is computed differently than the bottom one,
1397 // try to clear a wrong mesh
1398 bool isAdjFaceMeshed = false;
1399 PShapeIteratorPtr fIt = myHelper->GetAncestors( tgtSM->GetSubShape(),
1400 *mesh, TopAbs_FACE );
1401 while ( const TopoDS_Shape* f = fIt->next() )
1402 if (( isAdjFaceMeshed = mesh->GetSubMesh( *f )->IsMeshComputed() ))
1404 if ( isAdjFaceMeshed )
1405 return toSM( error( TCom("Different nb of segment on logically horizontal edges #")
1406 << shapeID( botE ) << " and #"
1407 << shapeID( topE ) << ": "
1408 << tgtSM->GetSubMeshDS()->NbElements() << " != "
1409 << srcSM->GetSubMeshDS()->NbElements() ));
1410 tgtSM->ComputeStateEngine( SMESH_subMesh::CLEAN );
1412 if ( !tgtSM->IsMeshComputed() )
1414 // compute nodes on VERTEXes
1415 SMESH_subMeshIteratorPtr smIt = tgtSM->getDependsOnIterator(/*includeSelf=*/false);
1416 while ( smIt->more() )
1417 smIt->next()->ComputeSubMeshStateEngine( SMESH_subMesh::COMPUTE );
1419 DBGOUT( "COMPUTE H edge (proj) " << tgtSM->GetId());
1420 projector1D->myHyp.SetSourceEdge( TopoDS::Edge( srcSM->GetSubShape() ));
1421 projector1D->InitComputeError();
1422 bool ok = projector1D->Compute( *mesh, tgtSM->GetSubShape() );
1425 SMESH_ComputeErrorPtr err = projector1D->GetComputeError();
1426 if ( err->IsOK() ) err->myName = COMPERR_ALGO_FAILED;
1427 tgtSM->GetComputeError() = err;
1431 tgtSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
1434 // Compute quad mesh on wall FACEs
1435 // -------------------------------
1436 const TopoDS_Face& face = (*quad)->face;
1437 SMESH_subMesh* fSM = mesh->GetSubMesh( face );
1438 if ( ! fSM->IsMeshComputed() )
1440 // make all EDGES meshed
1441 fSM->ComputeSubMeshStateEngine( SMESH_subMesh::COMPUTE );
1442 if ( !fSM->SubMeshesComputed() )
1443 return toSM( error( COMPERR_BAD_INPUT_MESH,
1444 "Not all edges have valid algorithm and hypothesis"));
1446 quadAlgo->InitComputeError();
1447 DBGOUT( "COMPUTE Quad face " << fSM->GetId());
1448 bool ok = quadAlgo->Compute( *mesh, face );
1449 fSM->GetComputeError() = quadAlgo->GetComputeError();
1452 fSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
1454 if ( myHelper->GetIsQuadratic() )
1456 // fill myHelper with medium nodes built by quadAlgo
1457 SMDS_ElemIteratorPtr fIt = fSM->GetSubMeshDS()->GetElements();
1458 while ( fIt->more() )
1459 myHelper->AddTLinks( dynamic_cast<const SMDS_MeshFace*>( fIt->next() ));
1467 //=======================================================================
1468 //function : Evaluate
1470 //=======================================================================
1472 bool StdMeshers_Prism_3D::Evaluate(SMESH_Mesh& theMesh,
1473 const TopoDS_Shape& theShape,
1474 MapShapeNbElems& aResMap)
1476 if ( theShape.ShapeType() == TopAbs_COMPOUND )
1479 for ( TopoDS_Iterator it( theShape ); it.More(); it.Next() )
1480 ok &= Evaluate( theMesh, it.Value(), aResMap );
1483 SMESH_MesherHelper helper( theMesh );
1485 myHelper->SetSubShape( theShape );
1487 // find face contains only triangles
1488 vector < SMESH_subMesh * >meshFaces;
1489 TopTools_SequenceOfShape aFaces;
1490 int NumBase = 0, i = 0, NbQFs = 0;
1491 for (TopExp_Explorer exp(theShape, TopAbs_FACE); exp.More(); exp.Next()) {
1493 aFaces.Append(exp.Current());
1494 SMESH_subMesh *aSubMesh = theMesh.GetSubMesh(exp.Current());
1495 meshFaces.push_back(aSubMesh);
1496 MapShapeNbElemsItr anIt = aResMap.find(meshFaces[i-1]);
1497 if( anIt==aResMap.end() )
1498 return toSM( error( "Submesh can not be evaluated"));
1500 std::vector<int> aVec = (*anIt).second;
1501 int nbtri = Max(aVec[SMDSEntity_Triangle],aVec[SMDSEntity_Quad_Triangle]);
1502 int nbqua = Max(aVec[SMDSEntity_Quadrangle],aVec[SMDSEntity_Quad_Quadrangle]);
1503 if( nbtri==0 && nbqua>0 ) {
1512 std::vector<int> aResVec(SMDSEntity_Last);
1513 for(int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aResVec[i] = 0;
1514 SMESH_subMesh * sm = theMesh.GetSubMesh(theShape);
1515 aResMap.insert(std::make_pair(sm,aResVec));
1516 return toSM( error( "Submesh can not be evaluated" ));
1519 if(NumBase==0) NumBase = 1; // only quads => set 1 faces as base
1521 // find number of 1d elems for base face
1523 TopTools_MapOfShape Edges1;
1524 for (TopExp_Explorer exp(aFaces.Value(NumBase), TopAbs_EDGE); exp.More(); exp.Next()) {
1525 Edges1.Add(exp.Current());
1526 SMESH_subMesh *sm = theMesh.GetSubMesh(exp.Current());
1528 MapShapeNbElemsItr anIt = aResMap.find(sm);
1529 if( anIt == aResMap.end() ) continue;
1530 std::vector<int> aVec = (*anIt).second;
1531 nb1d += Max(aVec[SMDSEntity_Edge],aVec[SMDSEntity_Quad_Edge]);
1534 // find face opposite to base face
1536 for(i=1; i<=6; i++) {
1537 if(i==NumBase) continue;
1538 bool IsOpposite = true;
1539 for(TopExp_Explorer exp(aFaces.Value(i), TopAbs_EDGE); exp.More(); exp.Next()) {
1540 if( Edges1.Contains(exp.Current()) ) {
1550 // find number of 2d elems on side faces
1552 for(i=1; i<=6; i++) {
1553 if( i==OppNum || i==NumBase ) continue;
1554 MapShapeNbElemsItr anIt = aResMap.find( meshFaces[i-1] );
1555 if( anIt == aResMap.end() ) continue;
1556 std::vector<int> aVec = (*anIt).second;
1557 nb2d += Max(aVec[SMDSEntity_Quadrangle],aVec[SMDSEntity_Quad_Quadrangle]);
1560 MapShapeNbElemsItr anIt = aResMap.find( meshFaces[NumBase-1] );
1561 std::vector<int> aVec = (*anIt).second;
1562 bool IsQuadratic = (aVec[SMDSEntity_Quad_Triangle]>aVec[SMDSEntity_Triangle]) ||
1563 (aVec[SMDSEntity_Quad_Quadrangle]>aVec[SMDSEntity_Quadrangle]);
1564 int nb2d_face0_3 = Max(aVec[SMDSEntity_Triangle],aVec[SMDSEntity_Quad_Triangle]);
1565 int nb2d_face0_4 = Max(aVec[SMDSEntity_Quadrangle],aVec[SMDSEntity_Quad_Quadrangle]);
1566 int nb0d_face0 = aVec[SMDSEntity_Node];
1567 int nb1d_face0_int = ( nb2d_face0_3*3 + nb2d_face0_4*4 - nb1d ) / 2;
1569 std::vector<int> aResVec(SMDSEntity_Last);
1570 for(int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aResVec[i] = 0;
1572 aResVec[SMDSEntity_Quad_Penta] = nb2d_face0_3 * ( nb2d/nb1d );
1573 aResVec[SMDSEntity_Quad_Hexa] = nb2d_face0_4 * ( nb2d/nb1d );
1574 aResVec[SMDSEntity_Node] = nb0d_face0 * ( 2*nb2d/nb1d - 1 ) - nb1d_face0_int * nb2d/nb1d;
1577 aResVec[SMDSEntity_Node] = nb0d_face0 * ( nb2d/nb1d - 1 );
1578 aResVec[SMDSEntity_Penta] = nb2d_face0_3 * ( nb2d/nb1d );
1579 aResVec[SMDSEntity_Hexa] = nb2d_face0_4 * ( nb2d/nb1d );
1581 SMESH_subMesh * sm = theMesh.GetSubMesh(theShape);
1582 aResMap.insert(std::make_pair(sm,aResVec));
1587 //================================================================================
1589 * \brief Create prisms
1590 * \param columns - columns of nodes generated from nodes of a mesh face
1591 * \param helper - helper initialized by mesh and shape to add prisms to
1593 //================================================================================
1595 void StdMeshers_Prism_3D::AddPrisms( vector<const TNodeColumn*> & columns,
1596 SMESH_MesherHelper* helper)
1598 int nbNodes = columns.size();
1599 int nbZ = columns[0]->size();
1600 if ( nbZ < 2 ) return;
1602 // find out orientation
1603 bool isForward = true;
1604 SMDS_VolumeTool vTool;
1606 switch ( nbNodes ) {
1608 SMDS_VolumeOfNodes tmpPenta ( (*columns[0])[z-1], // bottom
1611 (*columns[0])[z], // top
1614 vTool.Set( &tmpPenta );
1615 isForward = vTool.IsForward();
1619 SMDS_VolumeOfNodes tmpHex( (*columns[0])[z-1], (*columns[1])[z-1], // bottom
1620 (*columns[2])[z-1], (*columns[3])[z-1],
1621 (*columns[0])[z], (*columns[1])[z], // top
1622 (*columns[2])[z], (*columns[3])[z] );
1623 vTool.Set( &tmpHex );
1624 isForward = vTool.IsForward();
1628 const int di = (nbNodes+1) / 3;
1629 SMDS_VolumeOfNodes tmpVol ( (*columns[0] )[z-1],
1630 (*columns[di] )[z-1],
1631 (*columns[2*di])[z-1],
1634 (*columns[2*di])[z] );
1635 vTool.Set( &tmpVol );
1636 isForward = vTool.IsForward();
1639 // vertical loop on columns
1641 helper->SetElementsOnShape( true );
1643 switch ( nbNodes ) {
1645 case 3: { // ---------- pentahedra
1646 const int i1 = isForward ? 1 : 2;
1647 const int i2 = isForward ? 2 : 1;
1648 for ( z = 1; z < nbZ; ++z )
1649 helper->AddVolume( (*columns[0 ])[z-1], // bottom
1650 (*columns[i1])[z-1],
1651 (*columns[i2])[z-1],
1652 (*columns[0 ])[z], // top
1654 (*columns[i2])[z] );
1657 case 4: { // ---------- hexahedra
1658 const int i1 = isForward ? 1 : 3;
1659 const int i3 = isForward ? 3 : 1;
1660 for ( z = 1; z < nbZ; ++z )
1661 helper->AddVolume( (*columns[0])[z-1], (*columns[i1])[z-1], // bottom
1662 (*columns[2])[z-1], (*columns[i3])[z-1],
1663 (*columns[0])[z], (*columns[i1])[z], // top
1664 (*columns[2])[z], (*columns[i3])[z] );
1667 case 6: { // ---------- octahedra
1668 const int iBase1 = isForward ? -1 : 0;
1669 const int iBase2 = isForward ? 0 :-1;
1670 for ( z = 1; z < nbZ; ++z )
1671 helper->AddVolume( (*columns[0])[z+iBase1], (*columns[1])[z+iBase1], // bottom or top
1672 (*columns[2])[z+iBase1], (*columns[3])[z+iBase1],
1673 (*columns[4])[z+iBase1], (*columns[5])[z+iBase1],
1674 (*columns[0])[z+iBase2], (*columns[1])[z+iBase2], // top or bottom
1675 (*columns[2])[z+iBase2], (*columns[3])[z+iBase2],
1676 (*columns[4])[z+iBase2], (*columns[5])[z+iBase2] );
1679 default: // ---------- polyhedra
1680 vector<int> quantities( 2 + nbNodes, 4 );
1681 quantities[0] = quantities[1] = nbNodes;
1682 columns.resize( nbNodes + 1 );
1683 columns[ nbNodes ] = columns[ 0 ];
1684 const int i1 = isForward ? 1 : 3;
1685 const int i3 = isForward ? 3 : 1;
1686 const int iBase1 = isForward ? -1 : 0;
1687 const int iBase2 = isForward ? 0 :-1;
1688 vector<const SMDS_MeshNode*> nodes( 2*nbNodes + 4*nbNodes);
1689 for ( z = 1; z < nbZ; ++z )
1691 for ( int i = 0; i < nbNodes; ++i ) {
1692 nodes[ i ] = (*columns[ i ])[z+iBase1]; // bottom or top
1693 nodes[ 2*nbNodes-i-1 ] = (*columns[ i ])[z+iBase2]; // top or bottom
1695 int di = 2*nbNodes + 4*i;
1696 nodes[ di+0 ] = (*columns[i ])[z ];
1697 nodes[ di+i1] = (*columns[i+1])[z ];
1698 nodes[ di+2 ] = (*columns[i+1])[z-1];
1699 nodes[ di+i3] = (*columns[i ])[z-1];
1701 helper->AddPolyhedralVolume( nodes, quantities );
1704 } // switch ( nbNodes )
1707 //================================================================================
1709 * \brief Find correspondence between bottom and top nodes
1710 * If elements on the bottom and top faces are topologically different,
1711 * and projection is possible and allowed, perform the projection
1712 * \retval bool - is a success or not
1714 //================================================================================
1716 bool StdMeshers_Prism_3D::assocOrProjBottom2Top( const gp_Trsf & bottomToTopTrsf )
1718 SMESH_subMesh * botSM = myBlock.SubMesh( ID_BOT_FACE );
1719 SMESH_subMesh * topSM = myBlock.SubMesh( ID_TOP_FACE );
1721 SMESHDS_SubMesh * botSMDS = botSM->GetSubMeshDS();
1722 SMESHDS_SubMesh * topSMDS = topSM->GetSubMeshDS();
1724 if ( !botSMDS || botSMDS->NbElements() == 0 )
1726 _gen->Compute( *myHelper->GetMesh(), botSM->GetSubShape() );
1727 botSMDS = botSM->GetSubMeshDS();
1728 if ( !botSMDS || botSMDS->NbElements() == 0 )
1729 return toSM( error(TCom("No elements on face #") << botSM->GetId() ));
1732 bool needProject = !topSM->IsMeshComputed();
1733 if ( !needProject &&
1734 (botSMDS->NbElements() != topSMDS->NbElements() ||
1735 botSMDS->NbNodes() != topSMDS->NbNodes()))
1737 MESSAGE("nb elem bot " << botSMDS->NbElements() <<
1738 " top " << ( topSMDS ? topSMDS->NbElements() : 0 ));
1739 MESSAGE("nb node bot " << botSMDS->NbNodes() <<
1740 " top " << ( topSMDS ? topSMDS->NbNodes() : 0 ));
1741 return toSM( error(TCom("Mesh on faces #") << botSM->GetId()
1742 <<" and #"<< topSM->GetId() << " seems different" ));
1745 if ( 0/*needProject && !myProjectTriangles*/ )
1746 return toSM( error(TCom("Mesh on faces #") << botSM->GetId()
1747 <<" and #"<< topSM->GetId() << " seems different" ));
1748 ///RETURN_BAD_RESULT("Need to project but not allowed");
1752 return projectBottomToTop( bottomToTopTrsf );
1755 TopoDS_Face botFace = TopoDS::Face( myBlock.Shape( ID_BOT_FACE ));
1756 TopoDS_Face topFace = TopoDS::Face( myBlock.Shape( ID_TOP_FACE ));
1757 // associate top and bottom faces
1758 TAssocTool::TShapeShapeMap shape2ShapeMap;
1759 if ( !TAssocTool::FindSubShapeAssociation( botFace, myBlock.Mesh(),
1760 topFace, myBlock.Mesh(),
1762 return toSM( error(TCom("Topology of faces #") << botSM->GetId()
1763 <<" and #"<< topSM->GetId() << " seems different" ));
1765 // Find matching nodes of top and bottom faces
1766 TNodeNodeMap n2nMap;
1767 if ( ! TAssocTool::FindMatchingNodesOnFaces( botFace, myBlock.Mesh(),
1768 topFace, myBlock.Mesh(),
1769 shape2ShapeMap, n2nMap ))
1770 return toSM( error(TCom("Mesh on faces #") << botSM->GetId()
1771 <<" and #"<< topSM->GetId() << " seems different" ));
1773 // Fill myBotToColumnMap
1775 int zSize = myBlock.VerticalSize();
1777 TNodeNodeMap::iterator bN_tN = n2nMap.begin();
1778 for ( ; bN_tN != n2nMap.end(); ++bN_tN )
1780 const SMDS_MeshNode* botNode = bN_tN->first;
1781 const SMDS_MeshNode* topNode = bN_tN->second;
1782 if ( botNode->GetPosition()->GetTypeOfPosition() != SMDS_TOP_FACE )
1783 continue; // wall columns are contained in myBlock
1784 // create node column
1785 Prism_3D::TNode bN( botNode );
1786 TNode2ColumnMap::iterator bN_col =
1787 myBotToColumnMap.insert( make_pair ( bN, TNodeColumn() )).first;
1788 TNodeColumn & column = bN_col->second;
1789 column.resize( zSize );
1790 column.front() = botNode;
1791 column.back() = topNode;
1796 //================================================================================
1798 * \brief Remove quadrangles from the top face and
1799 * create triangles there by projection from the bottom
1800 * \retval bool - a success or not
1802 //================================================================================
1804 bool StdMeshers_Prism_3D::projectBottomToTop( const gp_Trsf & bottomToTopTrsf )
1806 SMESHDS_Mesh* meshDS = myBlock.MeshDS();
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 ( topSMDS && topSMDS->NbElements() > 0 )
1814 topSM->ComputeStateEngine( SMESH_subMesh::CLEAN );
1816 const TopoDS_Face& botFace = TopoDS::Face( myBlock.Shape( ID_BOT_FACE )); // oriented within
1817 const TopoDS_Face& topFace = TopoDS::Face( myBlock.Shape( ID_TOP_FACE )); // the 3D SHAPE
1818 int topFaceID = meshDS->ShapeToIndex( topFace );
1820 SMESH_MesherHelper botHelper( *myHelper->GetMesh() );
1821 botHelper.SetSubShape( botFace );
1822 botHelper.ToFixNodeParameters( true );
1824 SMESH_MesherHelper topHelper( *myHelper->GetMesh() );
1825 topHelper.SetSubShape( topFace );
1826 topHelper.ToFixNodeParameters( true );
1827 double distXYZ[4], fixTol = 10 * topHelper.MaxTolerance( topFace );
1829 // Fill myBotToColumnMap
1831 int zSize = myBlock.VerticalSize();
1832 Prism_3D::TNode prevTNode;
1833 SMDS_NodeIteratorPtr nIt = botSMDS->GetNodes();
1834 while ( nIt->more() )
1836 const SMDS_MeshNode* botNode = nIt->next();
1837 const SMDS_MeshNode* topNode = 0;
1838 if ( botNode->GetPosition()->GetTypeOfPosition() != SMDS_TOP_FACE )
1839 continue; // strange
1841 Prism_3D::TNode bN( botNode );
1842 if ( bottomToTopTrsf.Form() == gp_Identity )
1844 // compute bottom node params
1845 gp_XYZ paramHint(-1,-1,-1);
1846 if ( prevTNode.IsNeighbor( bN ))
1848 paramHint = prevTNode.GetParams();
1849 // double tol = 1e-2 * ( prevTNode.GetCoords() - bN.GetCoords() ).Modulus();
1850 // myBlock.SetTolerance( Min( myBlock.GetTolerance(), tol ));
1852 if ( !myBlock.ComputeParameters( bN.GetCoords(), bN.ChangeParams(),
1853 ID_BOT_FACE, paramHint ))
1854 return toSM( error(TCom("Can't compute normalized parameters for node ")
1855 << botNode->GetID() << " on the face #"<< botSM->GetId() ));
1857 // compute top node coords
1858 gp_XYZ topXYZ; gp_XY topUV;
1859 if ( !myBlock.FacePoint( ID_TOP_FACE, bN.GetParams(), topXYZ ) ||
1860 !myBlock.FaceUV ( ID_TOP_FACE, bN.GetParams(), topUV ))
1861 return toSM( error(TCom("Can't compute coordinates "
1862 "by normalized parameters on the face #")<< topSM->GetId() ));
1863 topNode = meshDS->AddNode( topXYZ.X(),topXYZ.Y(),topXYZ.Z() );
1864 meshDS->SetNodeOnFace( topNode, topFaceID, topUV.X(), topUV.Y() );
1866 else // use bottomToTopTrsf
1868 gp_XYZ coords = bN.GetCoords();
1869 bottomToTopTrsf.Transforms( coords );
1870 topNode = meshDS->AddNode( coords.X(), coords.Y(), coords.Z() );
1871 gp_XY topUV = botHelper.GetNodeUV( botFace, botNode, 0, &checkUV );
1872 meshDS->SetNodeOnFace( topNode, topFaceID, topUV.X(), topUV.Y() );
1874 if ( topHelper.CheckNodeUV( topFace, topNode, topUV, fixTol, /*force=*/false, distXYZ ) &&
1875 distXYZ[0] > fixTol && distXYZ[0] < fixTol * 1e+3 )
1876 meshDS->MoveNode( topNode, distXYZ[1], distXYZ[2], distXYZ[3] ); // transform can be inaccurate
1878 // create node column
1879 TNode2ColumnMap::iterator bN_col =
1880 myBotToColumnMap.insert( make_pair ( bN, TNodeColumn() )).first;
1881 TNodeColumn & column = bN_col->second;
1882 column.resize( zSize );
1883 column.front() = botNode;
1884 column.back() = topNode;
1889 const bool oldSetElemsOnShape = myHelper->SetElementsOnShape( false );
1891 // care of orientation;
1892 // if the bottom faces is orienetd OK then top faces must be reversed
1893 bool reverseTop = true;
1894 if ( myHelper->NbAncestors( botFace, *myBlock.Mesh(), TopAbs_SOLID ) > 1 )
1895 reverseTop = ! myHelper->IsReversedSubMesh( botFace );
1896 int iFrw, iRev, *iPtr = &( reverseTop ? iRev : iFrw );
1898 // loop on bottom mesh faces
1899 SMDS_ElemIteratorPtr faceIt = botSMDS->GetElements();
1900 vector< const SMDS_MeshNode* > nodes;
1901 while ( faceIt->more() )
1903 const SMDS_MeshElement* face = faceIt->next();
1904 if ( !face || face->GetType() != SMDSAbs_Face )
1907 // find top node in columns for each bottom node
1908 int nbNodes = face->NbCornerNodes();
1909 nodes.resize( nbNodes );
1910 for ( iFrw = 0, iRev = nbNodes-1; iFrw < nbNodes; ++iFrw, --iRev )
1912 const SMDS_MeshNode* n = face->GetNode( *iPtr );
1913 if ( n->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE ) {
1914 TNode2ColumnMap::iterator bot_column = myBotToColumnMap.find( n );
1915 if ( bot_column == myBotToColumnMap.end() )
1916 return toSM( error(TCom("No nodes found above node ") << n->GetID() ));
1917 nodes[ iFrw ] = bot_column->second.back();
1920 const TNodeColumn* column = myBlock.GetNodeColumn( n );
1922 return toSM( error(TCom("No side nodes found above node ") << n->GetID() ));
1923 nodes[ iFrw ] = column->back();
1926 SMDS_MeshElement* newFace = 0;
1927 switch ( nbNodes ) {
1930 newFace = myHelper->AddFace(nodes[0], nodes[1], nodes[2]);
1934 newFace = myHelper->AddFace( nodes[0], nodes[1], nodes[2], nodes[3] );
1938 newFace = meshDS->AddPolygonalFace( nodes );
1941 meshDS->SetMeshElementOnShape( newFace, topFaceID );
1944 myHelper->SetElementsOnShape( oldSetElemsOnShape );
1949 //=======================================================================
1950 //function : project2dMesh
1951 //purpose : Project mesh faces from a source FACE of one prism (theSrcFace)
1952 // to a source FACE of another prism (theTgtFace)
1953 //=======================================================================
1955 bool StdMeshers_Prism_3D::project2dMesh(const TopoDS_Face& theSrcFace,
1956 const TopoDS_Face& theTgtFace)
1958 TProjction2dAlgo* projector2D = TProjction2dAlgo::instance( this );
1959 projector2D->myHyp.SetSourceFace( theSrcFace );
1960 bool ok = projector2D->Compute( *myHelper->GetMesh(), theTgtFace );
1962 SMESH_subMesh* tgtSM = myHelper->GetMesh()->GetSubMesh( theTgtFace );
1963 tgtSM->ComputeStateEngine ( SMESH_subMesh::CHECK_COMPUTE_STATE );
1964 tgtSM->ComputeSubMeshStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
1969 //================================================================================
1971 * \brief Set projection coordinates of a node to a face and it's sub-shapes
1972 * \param faceID - the face given by in-block ID
1973 * \param params - node normalized parameters
1974 * \retval bool - is a success
1976 //================================================================================
1978 bool StdMeshers_Prism_3D::setFaceAndEdgesXYZ( const int faceID, const gp_XYZ& params, int z )
1980 // find base and top edges of the face
1981 enum { BASE = 0, TOP, LEFT, RIGHT };
1982 vector< int > edgeVec; // 0-base, 1-top
1983 SMESH_Block::GetFaceEdgesIDs( faceID, edgeVec );
1985 myBlock.EdgePoint( edgeVec[ BASE ], params, myShapeXYZ[ edgeVec[ BASE ]]);
1986 myBlock.EdgePoint( edgeVec[ TOP ], params, myShapeXYZ[ edgeVec[ TOP ]]);
1988 SHOWYXZ("\nparams ", params);
1989 SHOWYXZ("TOP is " <<edgeVec[ TOP ], myShapeXYZ[ edgeVec[ TOP]]);
1990 SHOWYXZ("BASE is "<<edgeVec[ BASE], myShapeXYZ[ edgeVec[ BASE]]);
1992 if ( faceID == SMESH_Block::ID_Fx0z || faceID == SMESH_Block::ID_Fx1z )
1994 myBlock.EdgePoint( edgeVec[ LEFT ], params, myShapeXYZ[ edgeVec[ LEFT ]]);
1995 myBlock.EdgePoint( edgeVec[ RIGHT ], params, myShapeXYZ[ edgeVec[ RIGHT ]]);
1997 SHOWYXZ("VER "<<edgeVec[ LEFT], myShapeXYZ[ edgeVec[ LEFT]]);
1998 SHOWYXZ("VER "<<edgeVec[ RIGHT], myShapeXYZ[ edgeVec[ RIGHT]]);
2000 myBlock.FacePoint( faceID, params, myShapeXYZ[ faceID ]);
2001 SHOWYXZ("FacePoint "<<faceID, myShapeXYZ[ faceID]);
2006 //=======================================================================
2008 //purpose : If (!isOK), sets the error to a sub-mesh of a current SOLID
2009 //=======================================================================
2011 bool StdMeshers_Prism_3D::toSM( bool isOK )
2013 if ( mySetErrorToSM &&
2016 !myHelper->GetSubShape().IsNull() &&
2017 myHelper->GetSubShape().ShapeType() == TopAbs_SOLID)
2019 SMESH_subMesh* sm = myHelper->GetMesh()->GetSubMesh( myHelper->GetSubShape() );
2020 sm->GetComputeError() = this->GetComputeError();
2021 // clear error in order not to return it twice
2022 _error = COMPERR_OK;
2028 //=======================================================================
2029 //function : shapeID
2030 //purpose : Return index of a shape
2031 //=======================================================================
2033 int StdMeshers_Prism_3D::shapeID( const TopoDS_Shape& S )
2035 if ( S.IsNull() ) return 0;
2036 if ( !myHelper ) return -3;
2037 return myHelper->GetMeshDS()->ShapeToIndex( S );
2042 //================================================================================
2044 * \brief Return true if this node and other one belong to one face
2046 //================================================================================
2048 bool Prism_3D::TNode::IsNeighbor( const Prism_3D::TNode& other ) const
2050 if ( !other.myNode || !myNode ) return false;
2052 SMDS_ElemIteratorPtr fIt = other.myNode->GetInverseElementIterator(SMDSAbs_Face);
2053 while ( fIt->more() )
2054 if ( fIt->next()->GetNodeIndex( myNode ) >= 0 )
2059 //================================================================================
2061 * \brief Prism initialization
2063 //================================================================================
2065 void TPrismTopo::Clear()
2067 myShape3D.Nullify();
2070 myWallQuads.clear();
2071 myBottomEdges.clear();
2072 myNbEdgesInWires.clear();
2073 myWallQuads.clear();
2076 } // namespace Prism_3D
2078 //================================================================================
2080 * \brief Constructor. Initialization is needed
2082 //================================================================================
2084 StdMeshers_PrismAsBlock::StdMeshers_PrismAsBlock()
2089 StdMeshers_PrismAsBlock::~StdMeshers_PrismAsBlock()
2093 void StdMeshers_PrismAsBlock::Clear()
2096 myShapeIDMap.Clear();
2100 delete mySide; mySide = 0;
2102 myParam2ColumnMaps.clear();
2103 myShapeIndex2ColumnMap.clear();
2106 //=======================================================================
2107 //function : initPrism
2108 //purpose : Analyse shape geometry and mesh.
2109 // If there are triangles on one of faces, it becomes 'bottom'.
2110 // thePrism.myBottom can be already set up.
2111 //=======================================================================
2113 bool StdMeshers_Prism_3D::initPrism(Prism_3D::TPrismTopo& thePrism,
2114 const TopoDS_Shape& shape3D)
2116 myHelper->SetSubShape( shape3D );
2118 SMESH_subMesh* mainSubMesh = myHelper->GetMesh()->GetSubMeshContaining( shape3D );
2119 if ( !mainSubMesh ) return toSM( error(COMPERR_BAD_INPUT_MESH,"Null submesh of shape3D"));
2121 // detect not-quad FACE sub-meshes of the 3D SHAPE
2122 list< SMESH_subMesh* > notQuadGeomSubMesh;
2123 list< SMESH_subMesh* > notQuadElemSubMesh;
2126 SMESH_subMesh* anyFaceSM = 0;
2127 SMESH_subMeshIteratorPtr smIt = mainSubMesh->getDependsOnIterator(false,true);
2128 while ( smIt->more() )
2130 SMESH_subMesh* sm = smIt->next();
2131 const TopoDS_Shape& face = sm->GetSubShape();
2132 if ( face.ShapeType() > TopAbs_FACE ) break;
2133 else if ( face.ShapeType() < TopAbs_FACE ) continue;
2137 // is quadrangle FACE?
2138 list< TopoDS_Edge > orderedEdges;
2139 list< int > nbEdgesInWires;
2140 int nbWires = SMESH_Block::GetOrderedEdges( TopoDS::Face( face ), orderedEdges,
2142 if ( nbWires != 1 || nbEdgesInWires.front() != 4 )
2143 notQuadGeomSubMesh.push_back( sm );
2145 // look for not quadrangle mesh elements
2146 if ( SMESHDS_SubMesh* smDS = sm->GetSubMeshDS() )
2147 if ( !myHelper->IsSameElemGeometry( smDS, SMDSGeom_QUADRANGLE ))
2148 notQuadElemSubMesh.push_back( sm );
2151 int nbNotQuadMeshed = notQuadElemSubMesh.size();
2152 int nbNotQuad = notQuadGeomSubMesh.size();
2153 bool hasNotQuad = ( nbNotQuad || nbNotQuadMeshed );
2156 if ( nbNotQuadMeshed > 2 )
2158 return toSM( error(COMPERR_BAD_INPUT_MESH,
2159 TCom("More than 2 faces with not quadrangle elements: ")
2160 <<nbNotQuadMeshed));
2162 if ( nbNotQuad > 2 || !thePrism.myBottom.IsNull() )
2164 // Issue 0020843 - one of side FACEs is quasi-quadrilateral (not 4 EDGEs).
2165 // Remove from notQuadGeomSubMesh faces meshed with regular grid
2166 int nbQuasiQuads = removeQuasiQuads( notQuadGeomSubMesh, myHelper,
2167 TQuadrangleAlgo::instance(this,myHelper) );
2168 nbNotQuad -= nbQuasiQuads;
2169 if ( nbNotQuad > 2 )
2170 return toSM( error(COMPERR_BAD_SHAPE,
2171 TCom("More than 2 not quadrilateral faces: ") <<nbNotQuad));
2172 hasNotQuad = ( nbNotQuad || nbNotQuadMeshed );
2175 // Analyse mesh and topology of FACEs: choose the bottom sub-mesh.
2176 // If there are not quadrangle FACEs, they are top and bottom ones.
2177 // Not quadrangle FACEs must be only on top and bottom.
2179 SMESH_subMesh * botSM = 0;
2180 SMESH_subMesh * topSM = 0;
2182 if ( hasNotQuad ) // can chose a bottom FACE
2184 if ( nbNotQuadMeshed > 0 ) botSM = notQuadElemSubMesh.front();
2185 else botSM = notQuadGeomSubMesh.front();
2186 if ( nbNotQuadMeshed > 1 ) topSM = notQuadElemSubMesh.back();
2187 else if ( nbNotQuad > 1 ) topSM = notQuadGeomSubMesh.back();
2189 if ( topSM == botSM ) {
2190 if ( nbNotQuadMeshed > 1 ) topSM = notQuadElemSubMesh.front();
2191 else topSM = notQuadGeomSubMesh.front();
2194 // detect mesh triangles on wall FACEs
2195 if ( nbNotQuad == 2 && nbNotQuadMeshed > 0 ) {
2197 if ( nbNotQuadMeshed == 1 )
2198 ok = ( find( notQuadGeomSubMesh.begin(),
2199 notQuadGeomSubMesh.end(), botSM ) != notQuadGeomSubMesh.end() );
2201 ok = ( notQuadGeomSubMesh == notQuadElemSubMesh );
2203 return toSM( error(COMPERR_BAD_INPUT_MESH,
2204 "Side face meshed with not quadrangle elements"));
2208 thePrism.myNotQuadOnTop = ( nbNotQuadMeshed > 1 );
2210 // use thePrism.myBottom
2211 if ( !thePrism.myBottom.IsNull() )
2214 if ( ! botSM->GetSubShape().IsSame( thePrism.myBottom )) {
2215 std::swap( botSM, topSM );
2216 if ( !botSM || ! botSM->GetSubShape().IsSame( thePrism.myBottom ))
2217 return toSM( error( COMPERR_BAD_INPUT_MESH,
2218 "Incompatible non-structured sub-meshes"));
2222 botSM = myHelper->GetMesh()->GetSubMesh( thePrism.myBottom );
2225 else if ( !botSM ) // find a proper bottom
2227 // composite walls or not prism shape
2228 for ( TopExp_Explorer f( shape3D, TopAbs_FACE ); f.More(); f.Next() )
2230 int minNbFaces = 2 + myHelper->Count( f.Current(), TopAbs_EDGE, false);
2231 if ( nbFaces >= minNbFaces)
2234 thePrism.myBottom = TopoDS::Face( f.Current() );
2235 if ( initPrism( thePrism, shape3D ))
2238 return toSM( error( COMPERR_BAD_SHAPE ));
2242 // find vertex 000 - the one with smallest coordinates (for easy DEBUG :-)
2244 double minVal = DBL_MAX, minX, val;
2245 for ( TopExp_Explorer exp( botSM->GetSubShape(), TopAbs_VERTEX );
2246 exp.More(); exp.Next() )
2248 const TopoDS_Vertex& v = TopoDS::Vertex( exp.Current() );
2249 gp_Pnt P = BRep_Tool::Pnt( v );
2250 val = P.X() + P.Y() + P.Z();
2251 if ( val < minVal || ( val == minVal && P.X() < minX )) {
2258 thePrism.myShape3D = shape3D;
2259 if ( thePrism.myBottom.IsNull() )
2260 thePrism.myBottom = TopoDS::Face( botSM->GetSubShape() );
2261 thePrism.myBottom.Orientation( myHelper->GetSubShapeOri( shape3D,
2262 thePrism.myBottom ));
2263 // Get ordered bottom edges
2264 TopoDS_Face reverseBottom = // to have order of top EDGEs as in the top FACE
2265 TopoDS::Face( thePrism.myBottom.Reversed() );
2266 SMESH_Block::GetOrderedEdges( reverseBottom,
2267 thePrism.myBottomEdges,
2268 thePrism.myNbEdgesInWires, V000 );
2270 // Get Wall faces corresponding to the ordered bottom edges and the top FACE
2271 if ( !getWallFaces( thePrism, nbFaces ))
2272 return false; //toSM( error(COMPERR_BAD_SHAPE, "Can't find side faces"));
2276 if ( !thePrism.myTop.IsSame( topSM->GetSubShape() ))
2278 (notQuadGeomSubMesh.empty() ? COMPERR_BAD_INPUT_MESH : COMPERR_BAD_SHAPE,
2279 "Non-quadrilateral faces are not opposite"));
2281 // check that the found top and bottom FACEs are opposite
2282 list< TopoDS_Edge >::iterator edge = thePrism.myBottomEdges.begin();
2283 for ( ; edge != thePrism.myBottomEdges.end(); ++edge )
2284 if ( myHelper->IsSubShape( *edge, thePrism.myTop ))
2286 (notQuadGeomSubMesh.empty() ? COMPERR_BAD_INPUT_MESH : COMPERR_BAD_SHAPE,
2287 "Non-quadrilateral faces are not opposite"));
2293 //================================================================================
2295 * \brief Initialization.
2296 * \param helper - helper loaded with mesh and 3D shape
2297 * \param thePrism - a prism data
2298 * \retval bool - false if a mesh or a shape are KO
2300 //================================================================================
2302 bool StdMeshers_PrismAsBlock::Init(SMESH_MesherHelper* helper,
2303 const Prism_3D::TPrismTopo& thePrism)
2306 SMESHDS_Mesh* meshDS = myHelper->GetMeshDS();
2307 SMESH_Mesh* mesh = myHelper->GetMesh();
2310 delete mySide; mySide = 0;
2312 vector< TSideFace* > sideFaces( NB_WALL_FACES, 0 );
2313 vector< pair< double, double> > params( NB_WALL_FACES );
2314 mySide = new TSideFace( *mesh, sideFaces, params );
2317 SMESH_Block::init();
2318 myShapeIDMap.Clear();
2319 myShapeIndex2ColumnMap.clear();
2321 int wallFaceIds[ NB_WALL_FACES ] = { // to walk around a block
2322 SMESH_Block::ID_Fx0z, SMESH_Block::ID_F1yz,
2323 SMESH_Block::ID_Fx1z, SMESH_Block::ID_F0yz
2326 myError = SMESH_ComputeError::New();
2328 myNotQuadOnTop = thePrism.myNotQuadOnTop;
2330 // Find columns of wall nodes and calculate edges' lengths
2331 // --------------------------------------------------------
2333 myParam2ColumnMaps.clear();
2334 myParam2ColumnMaps.resize( thePrism.myBottomEdges.size() ); // total nb edges
2336 size_t iE, nbEdges = thePrism.myNbEdgesInWires.front(); // nb outer edges
2337 vector< double > edgeLength( nbEdges );
2338 multimap< double, int > len2edgeMap;
2340 // for each EDGE: either split into several parts, or join with several next EDGEs
2341 vector<int> nbSplitPerEdge( nbEdges, 0 );
2342 vector<int> nbUnitePerEdge( nbEdges, 0 ); // -1 means "joined to a previous"
2344 // consider continuous straight EDGEs as one side
2345 const int nbSides = countNbSides( thePrism, nbUnitePerEdge, edgeLength );
2347 list< TopoDS_Edge >::const_iterator edgeIt = thePrism.myBottomEdges.begin();
2348 for ( iE = 0; iE < nbEdges; ++iE, ++edgeIt )
2350 TParam2ColumnMap & faceColumns = myParam2ColumnMaps[ iE ];
2352 Prism_3D::TQuadList::const_iterator quad = thePrism.myWallQuads[ iE ].begin();
2353 for ( ; quad != thePrism.myWallQuads[ iE ].end(); ++quad )
2355 const TopoDS_Edge& quadBot = (*quad)->side[ QUAD_BOTTOM_SIDE ]->Edge( 0 );
2356 if ( !myHelper->LoadNodeColumns( faceColumns, (*quad)->face, quadBot, meshDS ))
2357 return error(COMPERR_BAD_INPUT_MESH, TCom("Can't find regular quadrangle mesh ")
2358 << "on a side face #" << MeshDS()->ShapeToIndex( (*quad)->face ));
2360 SHOWYXZ("\np1 F " <<iE, gpXYZ(faceColumns.begin()->second.front() ));
2361 SHOWYXZ("p2 F " <<iE, gpXYZ(faceColumns.rbegin()->second.front() ));
2362 SHOWYXZ("V First "<<iE, BRep_Tool::Pnt( TopExp::FirstVertex(*edgeIt,true )));
2364 if ( nbSides < NB_WALL_FACES ) // fill map used to split faces
2365 len2edgeMap.insert( make_pair( edgeLength[ iE ], iE )); // sort edges by length
2367 // Load columns of internal edges (forming holes)
2368 // and fill map ShapeIndex to TParam2ColumnMap for them
2369 for ( ; edgeIt != thePrism.myBottomEdges.end() ; ++edgeIt, ++iE )
2371 TParam2ColumnMap & faceColumns = myParam2ColumnMaps[ iE ];
2373 Prism_3D::TQuadList::const_iterator quad = thePrism.myWallQuads[ iE ].begin();
2374 for ( ; quad != thePrism.myWallQuads[ iE ].end(); ++quad )
2376 const TopoDS_Edge& quadBot = (*quad)->side[ QUAD_BOTTOM_SIDE ]->Edge( 0 );
2377 if ( !myHelper->LoadNodeColumns( faceColumns, (*quad)->face, quadBot, meshDS ))
2378 return error(COMPERR_BAD_INPUT_MESH, TCom("Can't find regular quadrangle mesh ")
2379 << "on a side face #" << MeshDS()->ShapeToIndex( (*quad)->face ));
2382 int id = MeshDS()->ShapeToIndex( *edgeIt );
2383 bool isForward = true; // meaningless for intenal wires
2384 myShapeIndex2ColumnMap[ id ] = make_pair( & faceColumns, isForward );
2385 // columns for vertices
2387 const SMDS_MeshNode* n0 = faceColumns.begin()->second.front();
2388 id = n0->getshapeId();
2389 myShapeIndex2ColumnMap[ id ] = make_pair( & faceColumns, isForward );
2391 const SMDS_MeshNode* n1 = faceColumns.rbegin()->second.front();
2392 id = n1->getshapeId();
2393 myShapeIndex2ColumnMap[ id ] = make_pair( & faceColumns, isForward );
2395 // SHOWYXZ("\np1 F " <<iE, gpXYZ(faceColumns.begin()->second.front() ));
2396 // SHOWYXZ("p2 F " <<iE, gpXYZ(faceColumns.rbegin()->second.front() ));
2397 // SHOWYXZ("V First "<<iE, BRep_Tool::Pnt( TopExp::FirstVertex(*edgeIt,true )));
2400 // Create 4 wall faces of a block
2401 // -------------------------------
2403 if ( nbSides <= NB_WALL_FACES ) // ************* Split faces if necessary
2405 if ( nbSides != NB_WALL_FACES ) // define how to split
2407 if ( len2edgeMap.size() != nbEdges )
2408 RETURN_BAD_RESULT("Uniqueness of edge lengths not assured");
2410 multimap< double, int >::reverse_iterator maxLen_i = len2edgeMap.rbegin();
2411 multimap< double, int >::reverse_iterator midLen_i = ++len2edgeMap.rbegin();
2413 double maxLen = maxLen_i->first;
2414 double midLen = ( len2edgeMap.size() == 1 ) ? 0 : midLen_i->first;
2415 switch ( nbEdges ) {
2416 case 1: // 0-th edge is split into 4 parts
2417 nbSplitPerEdge[ 0 ] = 4;
2419 case 2: // either the longest edge is split into 3 parts, or both edges into halves
2420 if ( maxLen / 3 > midLen / 2 ) {
2421 nbSplitPerEdge[ maxLen_i->second ] = 3;
2424 nbSplitPerEdge[ maxLen_i->second ] = 2;
2425 nbSplitPerEdge[ midLen_i->second ] = 2;
2430 // split longest into 3 parts
2431 nbSplitPerEdge[ maxLen_i->second ] = 3;
2433 // split longest into halves
2434 nbSplitPerEdge[ maxLen_i->second ] = 2;
2438 else // **************************** Unite faces
2440 int nbExraFaces = nbSides - 4; // nb of faces to fuse
2441 for ( iE = 0; iE < nbEdges; ++iE )
2443 if ( nbUnitePerEdge[ iE ] < 0 )
2445 // look for already united faces
2446 for ( int i = iE; i < iE + nbExraFaces; ++i )
2448 if ( nbUnitePerEdge[ i ] > 0 ) // a side including nbUnitePerEdge[i]+1 edge
2449 nbExraFaces += nbUnitePerEdge[ i ];
2450 nbUnitePerEdge[ i ] = -1;
2452 nbUnitePerEdge[ iE ] = nbExraFaces;
2457 // Create TSideFace's
2459 list< TopoDS_Edge >::const_iterator botE = thePrism.myBottomEdges.begin();
2460 for ( iE = 0; iE < nbEdges; ++iE, ++botE )
2462 TFaceQuadStructPtr quad = thePrism.myWallQuads[ iE ].front();
2463 const int nbSplit = nbSplitPerEdge[ iE ];
2464 const int nbExraFaces = nbUnitePerEdge[ iE ] + 1;
2465 if ( nbSplit > 0 ) // split
2467 vector< double > params;
2468 splitParams( nbSplit, &myParam2ColumnMaps[ iE ], params );
2469 const bool isForward =
2470 StdMeshers_PrismAsBlock::IsForwardEdge( myHelper->GetMeshDS(),
2471 myParam2ColumnMaps[iE],
2472 *botE, SMESH_Block::ID_Fx0z );
2473 for ( int i = 0; i < nbSplit; ++i ) {
2474 double f = ( isForward ? params[ i ] : params[ nbSplit - i-1 ]);
2475 double l = ( isForward ? params[ i+1 ] : params[ nbSplit - i ]);
2476 TSideFace* comp = new TSideFace( *mesh, wallFaceIds[ iSide ],
2477 thePrism.myWallQuads[ iE ], *botE,
2478 &myParam2ColumnMaps[ iE ], f, l );
2479 mySide->SetComponent( iSide++, comp );
2482 else if ( nbExraFaces > 1 ) // unite
2484 double u0 = 0, sumLen = 0;
2485 for ( int i = iE; i < iE + nbExraFaces; ++i )
2486 sumLen += edgeLength[ i ];
2488 vector< TSideFace* > components( nbExraFaces );
2489 vector< pair< double, double> > params( nbExraFaces );
2490 bool endReached = false;
2491 for ( int i = 0; i < nbExraFaces; ++i, ++botE, ++iE )
2493 if ( iE == nbEdges )
2496 botE = thePrism.myBottomEdges.begin();
2499 components[ i ] = new TSideFace( *mesh, wallFaceIds[ iSide ],
2500 thePrism.myWallQuads[ iE ], *botE,
2501 &myParam2ColumnMaps[ iE ]);
2502 double u1 = u0 + edgeLength[ iE ] / sumLen;
2503 params[ i ] = make_pair( u0 , u1 );
2506 TSideFace* comp = new TSideFace( *mesh, components, params );
2507 mySide->SetComponent( iSide++, comp );
2510 --iE; // for increment in an external loop on iE
2513 else if ( nbExraFaces < 0 ) // skip already united face
2518 TSideFace* comp = new TSideFace( *mesh, wallFaceIds[ iSide ],
2519 thePrism.myWallQuads[ iE ], *botE,
2520 &myParam2ColumnMaps[ iE ]);
2521 mySide->SetComponent( iSide++, comp );
2526 // Fill geometry fields of SMESH_Block
2527 // ------------------------------------
2529 vector< int > botEdgeIdVec;
2530 SMESH_Block::GetFaceEdgesIDs( ID_BOT_FACE, botEdgeIdVec );
2532 bool isForward[NB_WALL_FACES] = { true, true, true, true };
2533 Adaptor2d_Curve2d* botPcurves[NB_WALL_FACES];
2534 Adaptor2d_Curve2d* topPcurves[NB_WALL_FACES];
2536 for ( int iF = 0; iF < NB_WALL_FACES; ++iF )
2538 TSideFace * sideFace = mySide->GetComponent( iF );
2540 RETURN_BAD_RESULT("NULL TSideFace");
2541 int fID = sideFace->FaceID(); // in-block ID
2543 // fill myShapeIDMap
2544 if ( sideFace->InsertSubShapes( myShapeIDMap ) != 8 &&
2545 !sideFace->IsComplex())
2546 MESSAGE( ": Warning : InsertSubShapes() < 8 on side " << iF );
2548 // side faces geometry
2549 Adaptor2d_Curve2d* pcurves[NB_WALL_FACES];
2550 if ( !sideFace->GetPCurves( pcurves ))
2551 RETURN_BAD_RESULT("TSideFace::GetPCurves() failed");
2553 SMESH_Block::TFace& tFace = myFace[ fID - ID_FirstF ];
2554 tFace.Set( fID, sideFace->Surface(), pcurves, isForward );
2556 SHOWYXZ( endl<<"F "<< iF << " id " << fID << " FRW " << sideFace->IsForward(), sideFace->Value(0,0));
2557 // edges 3D geometry
2558 vector< int > edgeIdVec;
2559 SMESH_Block::GetFaceEdgesIDs( fID, edgeIdVec );
2560 for ( int isMax = 0; isMax < 2; ++isMax ) {
2562 int eID = edgeIdVec[ isMax ];
2563 SMESH_Block::TEdge& tEdge = myEdge[ eID - ID_FirstE ];
2564 tEdge.Set( eID, sideFace->HorizCurve(isMax), true);
2565 SHOWYXZ(eID<<" HOR"<<isMax<<"(0)", sideFace->HorizCurve(isMax)->Value(0));
2566 SHOWYXZ(eID<<" HOR"<<isMax<<"(1)", sideFace->HorizCurve(isMax)->Value(1));
2569 int eID = edgeIdVec[ isMax+2 ];
2570 SMESH_Block::TEdge& tEdge = myEdge[ eID - ID_FirstE ];
2571 tEdge.Set( eID, sideFace->VertiCurve(isMax), true);
2572 SHOWYXZ(eID<<" VER"<<isMax<<"(0)", sideFace->VertiCurve(isMax)->Value(0));
2573 SHOWYXZ(eID<<" VER"<<isMax<<"(1)", sideFace->VertiCurve(isMax)->Value(1));
2576 vector< int > vertexIdVec;
2577 SMESH_Block::GetEdgeVertexIDs( eID, vertexIdVec );
2578 myPnt[ vertexIdVec[0] - ID_FirstV ] = tEdge.GetCurve()->Value(0).XYZ();
2579 myPnt[ vertexIdVec[1] - ID_FirstV ] = tEdge.GetCurve()->Value(1).XYZ();
2582 // pcurves on horizontal faces
2583 for ( iE = 0; iE < NB_WALL_FACES; ++iE ) {
2584 if ( edgeIdVec[ BOTTOM_EDGE ] == botEdgeIdVec[ iE ] ) {
2585 botPcurves[ iE ] = sideFace->HorizPCurve( false, thePrism.myBottom );
2586 topPcurves[ iE ] = sideFace->HorizPCurve( true, thePrism.myTop );
2590 //sideFace->dumpNodes( 4 ); // debug
2592 // horizontal faces geometry
2594 SMESH_Block::TFace& tFace = myFace[ ID_BOT_FACE - ID_FirstF ];
2595 tFace.Set( ID_BOT_FACE, new BRepAdaptor_Surface( thePrism.myBottom ), botPcurves, isForward );
2596 SMESH_Block::Insert( thePrism.myBottom, ID_BOT_FACE, myShapeIDMap );
2599 SMESH_Block::TFace& tFace = myFace[ ID_TOP_FACE - ID_FirstF ];
2600 tFace.Set( ID_TOP_FACE, new BRepAdaptor_Surface( thePrism.myTop ), topPcurves, isForward );
2601 SMESH_Block::Insert( thePrism.myTop, ID_TOP_FACE, myShapeIDMap );
2603 //faceGridToPythonDump( SMESH_Block::ID_Fxy0, 50 );
2604 //faceGridToPythonDump( SMESH_Block::ID_Fxy1 );
2606 // Fill map ShapeIndex to TParam2ColumnMap
2607 // ----------------------------------------
2609 list< TSideFace* > fList;
2610 list< TSideFace* >::iterator fListIt;
2611 fList.push_back( mySide );
2612 for ( fListIt = fList.begin(); fListIt != fList.end(); ++fListIt)
2614 int nb = (*fListIt)->NbComponents();
2615 for ( int i = 0; i < nb; ++i ) {
2616 if ( TSideFace* comp = (*fListIt)->GetComponent( i ))
2617 fList.push_back( comp );
2619 if ( TParam2ColumnMap* cols = (*fListIt)->GetColumns()) {
2620 // columns for a base edge
2621 int id = MeshDS()->ShapeToIndex( (*fListIt)->BaseEdge() );
2622 bool isForward = (*fListIt)->IsForward();
2623 myShapeIndex2ColumnMap[ id ] = make_pair( cols, isForward );
2625 // columns for vertices
2626 const SMDS_MeshNode* n0 = cols->begin()->second.front();
2627 id = n0->getshapeId();
2628 myShapeIndex2ColumnMap[ id ] = make_pair( cols, isForward );
2630 const SMDS_MeshNode* n1 = cols->rbegin()->second.front();
2631 id = n1->getshapeId();
2632 myShapeIndex2ColumnMap[ id ] = make_pair( cols, !isForward );
2636 // #define SHOWYXZ(msg, xyz) { \
2637 // gp_Pnt p (xyz); \
2638 // cout << msg << " ("<< p.X() << "; " <<p.Y() << "; " <<p.Z() << ") " <<endl; \
2640 // double _u[]={ 0.1, 0.1, 0.9, 0.9 };
2641 // double _v[]={ 0.1, 0.9, 0.1, 0.9 };
2642 // for ( int z = 0; z < 2; ++z )
2643 // for ( int i = 0; i < 4; ++i )
2645 // //gp_XYZ testPar(0.25, 0.25, 0), testCoord;
2646 // int iFace = (z ? ID_TOP_FACE : ID_BOT_FACE);
2647 // gp_XYZ testPar(_u[i], _v[i], z), testCoord;
2648 // if ( !FacePoint( iFace, testPar, testCoord ))
2649 // RETURN_BAD_RESULT("TEST FacePoint() FAILED");
2650 // SHOWYXZ("IN TEST PARAM" , testPar);
2651 // SHOWYXZ("OUT TEST CORD" , testCoord);
2652 // if ( !ComputeParameters( testCoord, testPar , iFace))
2653 // RETURN_BAD_RESULT("TEST ComputeParameters() FAILED");
2654 // SHOWYXZ("OUT TEST PARAM" , testPar);
2659 //================================================================================
2661 * \brief Return pointer to column of nodes
2662 * \param node - bottom node from which the returned column goes up
2663 * \retval const TNodeColumn* - the found column
2665 //================================================================================
2667 const TNodeColumn* StdMeshers_PrismAsBlock::GetNodeColumn(const SMDS_MeshNode* node) const
2669 int sID = node->getshapeId();
2671 map<int, pair< TParam2ColumnMap*, bool > >::const_iterator col_frw =
2672 myShapeIndex2ColumnMap.find( sID );
2673 if ( col_frw != myShapeIndex2ColumnMap.end() ) {
2674 const TParam2ColumnMap* cols = col_frw->second.first;
2675 TParam2ColumnIt u_col = cols->begin();
2676 for ( ; u_col != cols->end(); ++u_col )
2677 if ( u_col->second[ 0 ] == node )
2678 return & u_col->second;
2683 //=======================================================================
2684 //function : GetLayersTransformation
2685 //purpose : Return transformations to get coordinates of nodes of each layer
2686 // by nodes of the bottom. Layer is a set of nodes at a certain step
2687 // from bottom to top.
2688 // Transformation to get top node from bottom ones is computed
2689 // only if the top FACE is not meshed.
2690 //=======================================================================
2692 bool StdMeshers_PrismAsBlock::GetLayersTransformation(vector<gp_Trsf> & trsf,
2693 const Prism_3D::TPrismTopo& prism) const
2695 const bool itTopMeshed = !SubMesh( ID_BOT_FACE )->IsEmpty();
2696 const int zSize = VerticalSize();
2697 if ( zSize < 3 && !itTopMeshed ) return true;
2698 trsf.resize( zSize - 1 );
2700 // Select some node columns by which we will define coordinate system of layers
2702 vector< const TNodeColumn* > columns;
2705 list< TopoDS_Edge >::const_iterator edgeIt = prism.myBottomEdges.begin();
2706 for ( int iE = 0; iE < prism.myNbEdgesInWires.front(); ++iE, ++edgeIt )
2708 if ( SMESH_Algo::isDegenerated( *edgeIt )) continue;
2709 const TParam2ColumnMap* u2colMap =
2710 GetParam2ColumnMap( MeshDS()->ShapeToIndex( *edgeIt ), isReverse );
2711 if ( !u2colMap ) return false;
2712 double f = u2colMap->begin()->first, l = u2colMap->rbegin()->first;
2713 //isReverse = ( edgeIt->Orientation() == TopAbs_REVERSED );
2714 //if ( isReverse ) swap ( f, l ); -- u2colMap takes orientation into account
2715 const int nbCol = 5;
2716 for ( int i = 0; i < nbCol; ++i )
2718 double u = f + i/double(nbCol) * ( l - f );
2719 const TNodeColumn* col = & getColumn( u2colMap, u )->second;
2720 if ( columns.empty() || col != columns.back() )
2721 columns.push_back( col );
2726 // Find tolerance to check transformations
2731 for ( int i = 0; i < columns.size(); ++i )
2732 bndBox.Add( gpXYZ( columns[i]->front() ));
2733 tol2 = bndBox.SquareExtent() * 1e-5;
2736 // Compute transformations
2739 gp_Trsf fromCsZ, toCs0;
2740 gp_Ax3 cs0 = getLayerCoordSys(0, columns, xCol );
2741 //double dist0 = cs0.Location().Distance( gpXYZ( (*columns[0])[0]));
2742 toCs0.SetTransformation( cs0 );
2743 for ( int z = 1; z < zSize; ++z )
2745 gp_Ax3 csZ = getLayerCoordSys(z, columns, xCol );
2746 //double distZ = csZ.Location().Distance( gpXYZ( (*columns[0])[z]));
2747 fromCsZ.SetTransformation( csZ );
2749 gp_Trsf& t = trsf[ z-1 ];
2750 t = fromCsZ * toCs0;
2751 //t.SetScaleFactor( distZ/dist0 ); - it does not work properly, wrong base point
2753 // check a transformation
2754 for ( int i = 0; i < columns.size(); ++i )
2756 gp_Pnt p0 = gpXYZ( (*columns[i])[0] );
2757 gp_Pnt pz = gpXYZ( (*columns[i])[z] );
2758 t.Transforms( p0.ChangeCoord() );
2759 if ( p0.SquareDistance( pz ) > tol2 )
2762 return ( z == zSize - 1 ); // OK if fails only botton->top trsf
2769 //================================================================================
2771 * \brief Check curve orientation of a bootom edge
2772 * \param meshDS - mesh DS
2773 * \param columnsMap - node columns map of side face
2774 * \param bottomEdge - the bootom edge
2775 * \param sideFaceID - side face in-block ID
2776 * \retval bool - true if orientation coinside with in-block forward orientation
2778 //================================================================================
2780 bool StdMeshers_PrismAsBlock::IsForwardEdge(SMESHDS_Mesh* meshDS,
2781 const TParam2ColumnMap& columnsMap,
2782 const TopoDS_Edge & bottomEdge,
2783 const int sideFaceID)
2785 bool isForward = false;
2786 if ( SMESH_MesherHelper::IsClosedEdge( bottomEdge ))
2788 isForward = ( bottomEdge.Orientation() == TopAbs_FORWARD );
2792 const TNodeColumn& firstCol = columnsMap.begin()->second;
2793 const SMDS_MeshNode* bottomNode = firstCol[0];
2794 TopoDS_Shape firstVertex = SMESH_MesherHelper::GetSubShapeByNode( bottomNode, meshDS );
2795 isForward = ( firstVertex.IsSame( TopExp::FirstVertex( bottomEdge, true )));
2797 // on 2 of 4 sides first vertex is end
2798 if ( sideFaceID == ID_Fx1z || sideFaceID == ID_F0yz )
2799 isForward = !isForward;
2803 //=======================================================================
2804 //function : faceGridToPythonDump
2805 //purpose : Prints a script creating a normal grid on the prism side
2806 //=======================================================================
2808 void StdMeshers_PrismAsBlock::faceGridToPythonDump(const SMESH_Block::TShapeID face,
2812 gp_XYZ pOnF[6] = { gp_XYZ(0,0,0), gp_XYZ(0,0,1),
2813 gp_XYZ(0,0,0), gp_XYZ(0,1,0),
2814 gp_XYZ(0,0,0), gp_XYZ(1,0,0) };
2816 cout << "mesh = smesh.Mesh( 'Face " << face << "')" << endl;
2817 SMESH_Block::TFace& f = myFace[ face - ID_FirstF ];
2818 gp_XYZ params = pOnF[ face - ID_FirstF ];
2819 //const int nb = 10; // nb face rows
2820 for ( int j = 0; j <= nb; ++j )
2822 params.SetCoord( f.GetVInd(), double( j )/ nb );
2823 for ( int i = 0; i <= nb; ++i )
2825 params.SetCoord( f.GetUInd(), double( i )/ nb );
2826 gp_XYZ p = f.Point( params );
2827 gp_XY uv = f.GetUV( params );
2828 cout << "mesh.AddNode( " << p.X() << ", " << p.Y() << ", " << p.Z() << " )"
2829 << " # " << 1 + i + j * ( nb + 1 )
2830 << " ( " << i << ", " << j << " ) "
2831 << " UV( " << uv.X() << ", " << uv.Y() << " )" << endl;
2832 ShellPoint( params, p2 );
2833 double dist = ( p2 - p ).Modulus();
2835 cout << "#### dist from ShellPoint " << dist
2836 << " (" << p2.X() << ", " << p2.Y() << ", " << p2.Z() << " ) " << endl;
2839 for ( int j = 0; j < nb; ++j )
2840 for ( int i = 0; i < nb; ++i )
2842 int n = 1 + i + j * ( nb + 1 );
2843 cout << "mesh.AddFace([ "
2844 << n << ", " << n+1 << ", "
2845 << n+nb+2 << ", " << n+nb+1 << "]) " << endl;
2851 //================================================================================
2853 * \brief Constructor
2854 * \param faceID - in-block ID
2855 * \param face - geom FACE
2856 * \param baseEdge - EDGE proreply oriented in the bottom EDGE !!!
2857 * \param columnsMap - map of node columns
2858 * \param first - first normalized param
2859 * \param last - last normalized param
2861 //================================================================================
2863 StdMeshers_PrismAsBlock::TSideFace::TSideFace(SMESH_Mesh& mesh,
2865 const Prism_3D::TQuadList& quadList,
2866 const TopoDS_Edge& baseEdge,
2867 TParam2ColumnMap* columnsMap,
2871 myParamToColumnMap( columnsMap ),
2874 myParams.resize( 1 );
2875 myParams[ 0 ] = make_pair( first, last );
2876 mySurface = PSurface( new BRepAdaptor_Surface( quadList.front()->face ));
2877 myBaseEdge = baseEdge;
2878 myIsForward = StdMeshers_PrismAsBlock::IsForwardEdge( myHelper.GetMeshDS(),
2879 *myParamToColumnMap,
2881 myHelper.SetSubShape( quadList.front()->face );
2883 if ( quadList.size() > 1 ) // side is vertically composite
2885 // fill myShapeID2Surf map to enable finding a right surface by any sub-shape ID
2887 SMESHDS_Mesh* meshDS = myHelper.GetMeshDS();
2889 TopTools_IndexedDataMapOfShapeListOfShape subToFaces;
2890 Prism_3D::TQuadList::const_iterator quad = quadList.begin();
2891 for ( ; quad != quadList.end(); ++quad )
2893 const TopoDS_Face& face = (*quad)->face;
2894 TopExp::MapShapesAndAncestors( face, TopAbs_VERTEX, TopAbs_FACE, subToFaces );
2895 TopExp::MapShapesAndAncestors( face, TopAbs_EDGE, TopAbs_FACE, subToFaces );
2896 myShapeID2Surf.insert( make_pair( meshDS->ShapeToIndex( face ),
2897 PSurface( new BRepAdaptor_Surface( face ))));
2899 for ( int i = 1; i <= subToFaces.Extent(); ++i )
2901 const TopoDS_Shape& sub = subToFaces.FindKey( i );
2902 TopTools_ListOfShape& faces = subToFaces( i );
2903 int subID = meshDS->ShapeToIndex( sub );
2904 int faceID = meshDS->ShapeToIndex( faces.First() );
2905 myShapeID2Surf.insert ( make_pair( subID, myShapeID2Surf[ faceID ]));
2910 //================================================================================
2912 * \brief Constructor of a complex side face
2914 //================================================================================
2916 StdMeshers_PrismAsBlock::TSideFace::
2917 TSideFace(SMESH_Mesh& mesh,
2918 const vector< TSideFace* >& components,
2919 const vector< pair< double, double> > & params)
2920 :myID( components[0] ? components[0]->myID : 0 ),
2921 myParamToColumnMap( 0 ),
2923 myIsForward( true ),
2924 myComponents( components ),
2927 if ( myID == ID_Fx1z || myID == ID_F0yz )
2929 // reverse components
2930 std::reverse( myComponents.begin(), myComponents.end() );
2931 std::reverse( myParams.begin(), myParams.end() );
2932 for ( size_t i = 0; i < myParams.size(); ++i )
2934 const double f = myParams[i].first;
2935 const double l = myParams[i].second;
2936 myParams[i] = make_pair( 1. - l, 1. - f );
2940 //================================================================================
2942 * \brief Copy constructor
2943 * \param other - other side
2945 //================================================================================
2947 StdMeshers_PrismAsBlock::TSideFace::TSideFace( const TSideFace& other ):
2948 myID ( other.myID ),
2949 myParamToColumnMap ( other.myParamToColumnMap ),
2950 mySurface ( other.mySurface ),
2951 myBaseEdge ( other.myBaseEdge ),
2952 myShapeID2Surf ( other.myShapeID2Surf ),
2953 myParams ( other.myParams ),
2954 myIsForward ( other.myIsForward ),
2955 myComponents ( other.myComponents.size() ),
2956 myHelper ( *other.myHelper.GetMesh() )
2958 for (int i = 0 ; i < myComponents.size(); ++i )
2959 myComponents[ i ] = new TSideFace( *other.myComponents[ i ]);
2962 //================================================================================
2964 * \brief Deletes myComponents
2966 //================================================================================
2968 StdMeshers_PrismAsBlock::TSideFace::~TSideFace()
2970 for (int i = 0 ; i < myComponents.size(); ++i )
2971 if ( myComponents[ i ] )
2972 delete myComponents[ i ];
2975 //================================================================================
2977 * \brief Return geometry of the vertical curve
2978 * \param isMax - true means curve located closer to (1,1,1) block point
2979 * \retval Adaptor3d_Curve* - curve adaptor
2981 //================================================================================
2983 Adaptor3d_Curve* StdMeshers_PrismAsBlock::TSideFace::VertiCurve(const bool isMax) const
2985 if ( !myComponents.empty() ) {
2987 return myComponents.back()->VertiCurve(isMax);
2989 return myComponents.front()->VertiCurve(isMax);
2991 double f = myParams[0].first, l = myParams[0].second;
2992 if ( !myIsForward ) std::swap( f, l );
2993 return new TVerticalEdgeAdaptor( myParamToColumnMap, isMax ? l : f );
2996 //================================================================================
2998 * \brief Return geometry of the top or bottom curve
3000 * \retval Adaptor3d_Curve* -
3002 //================================================================================
3004 Adaptor3d_Curve* StdMeshers_PrismAsBlock::TSideFace::HorizCurve(const bool isTop) const
3006 return new THorizontalEdgeAdaptor( this, isTop );
3009 //================================================================================
3011 * \brief Return pcurves
3012 * \param pcurv - array of 4 pcurves
3013 * \retval bool - is a success
3015 //================================================================================
3017 bool StdMeshers_PrismAsBlock::TSideFace::GetPCurves(Adaptor2d_Curve2d* pcurv[4]) const
3019 int iEdge[ 4 ] = { BOTTOM_EDGE, TOP_EDGE, V0_EDGE, V1_EDGE };
3021 for ( int i = 0 ; i < 4 ; ++i ) {
3022 Handle(Geom2d_Line) line;
3023 switch ( iEdge[ i ] ) {
3025 line = new Geom2d_Line( gp_Pnt2d( 0, 1 ), gp::DX2d() ); break;
3027 line = new Geom2d_Line( gp::Origin2d(), gp::DX2d() ); break;
3029 line = new Geom2d_Line( gp::Origin2d(), gp::DY2d() ); break;
3031 line = new Geom2d_Line( gp_Pnt2d( 1, 0 ), gp::DY2d() ); break;
3033 pcurv[ i ] = new Geom2dAdaptor_Curve( line, 0, 1 );
3038 //================================================================================
3040 * \brief Returns geometry of pcurve on a horizontal face
3041 * \param isTop - is top or bottom face
3042 * \param horFace - a horizontal face
3043 * \retval Adaptor2d_Curve2d* - curve adaptor
3045 //================================================================================
3048 StdMeshers_PrismAsBlock::TSideFace::HorizPCurve(const bool isTop,
3049 const TopoDS_Face& horFace) const
3051 return new TPCurveOnHorFaceAdaptor( this, isTop, horFace );
3054 //================================================================================
3056 * \brief Return a component corresponding to parameter
3057 * \param U - parameter along a horizontal size
3058 * \param localU - parameter along a horizontal size of a component
3059 * \retval TSideFace* - found component
3061 //================================================================================
3063 StdMeshers_PrismAsBlock::TSideFace*
3064 StdMeshers_PrismAsBlock::TSideFace::GetComponent(const double U,double & localU) const
3067 if ( myComponents.empty() )
3068 return const_cast<TSideFace*>( this );
3071 for ( i = 0; i < myComponents.size(); ++i )
3072 if ( U < myParams[ i ].second )
3074 if ( i >= myComponents.size() )
3075 i = myComponents.size() - 1;
3077 double f = myParams[ i ].first, l = myParams[ i ].second;
3078 localU = ( U - f ) / ( l - f );
3079 return myComponents[ i ];
3082 //================================================================================
3084 * \brief Find node columns for a parameter
3085 * \param U - parameter along a horizontal edge
3086 * \param col1 - the 1st found column
3087 * \param col2 - the 2nd found column
3088 * \retval r - normalized position of U between the found columns
3090 //================================================================================
3092 double StdMeshers_PrismAsBlock::TSideFace::GetColumns(const double U,
3093 TParam2ColumnIt & col1,
3094 TParam2ColumnIt & col2) const
3096 double u = U, r = 0;
3097 if ( !myComponents.empty() ) {
3098 TSideFace * comp = GetComponent(U,u);
3099 return comp->GetColumns( u, col1, col2 );
3104 double f = myParams[0].first, l = myParams[0].second;
3105 u = f + u * ( l - f );
3107 col1 = col2 = getColumn( myParamToColumnMap, u );
3108 if ( ++col2 == myParamToColumnMap->end() ) {
3113 double uf = col1->first;
3114 double ul = col2->first;
3115 r = ( u - uf ) / ( ul - uf );
3120 //================================================================================
3122 * \brief Return all nodes at a given height together with their normalized parameters
3123 * \param [in] Z - the height of interest
3124 * \param [out] nodes - map of parameter to node
3126 //================================================================================
3128 void StdMeshers_PrismAsBlock::
3129 TSideFace::GetNodesAtZ(const int Z,
3130 map<double, const SMDS_MeshNode* >& nodes ) const
3132 if ( !myComponents.empty() )
3135 for ( size_t i = 0; i < myComponents.size(); ++i )
3137 map<double, const SMDS_MeshNode* > nn;
3138 myComponents[i]->GetNodesAtZ( Z, nn );
3139 map<double, const SMDS_MeshNode* >::iterator u2n = nn.begin();
3140 if ( !nodes.empty() && nodes.rbegin()->second == u2n->second )
3142 const double uRange = myParams[i].second - myParams[i].first;
3143 for ( ; u2n != nn.end(); ++u2n )
3144 nodes.insert( nodes.end(), make_pair( u0 + uRange * u2n->first, u2n->second ));
3150 double f = myParams[0].first, l = myParams[0].second;
3153 const double uRange = l - f;
3154 if ( Abs( uRange ) < std::numeric_limits<double>::min() )
3156 TParam2ColumnIt u2col = getColumn( myParamToColumnMap, myParams[0].first + 1e-3 );
3157 for ( ; u2col != myParamToColumnMap->end(); ++u2col )
3158 if ( u2col->first > myParams[0].second + 1e-9 )
3161 nodes.insert( nodes.end(),
3162 make_pair( ( u2col->first - f ) / uRange, u2col->second[ Z ] ));
3166 //================================================================================
3168 * \brief Return coordinates by normalized params
3169 * \param U - horizontal param
3170 * \param V - vertical param
3171 * \retval gp_Pnt - result point
3173 //================================================================================
3175 gp_Pnt StdMeshers_PrismAsBlock::TSideFace::Value(const Standard_Real U,
3176 const Standard_Real V) const
3178 if ( !myComponents.empty() ) {
3180 TSideFace * comp = GetComponent(U,u);
3181 return comp->Value( u, V );
3184 TParam2ColumnIt u_col1, u_col2;
3185 double vR, hR = GetColumns( U, u_col1, u_col2 );
3187 const SMDS_MeshNode* nn[4];
3189 // BEGIN issue 0020680: Bad cell created by Radial prism in center of torus
3190 // Workaround for a wrongly located point returned by mySurface.Value() for
3191 // UV located near boundary of BSpline surface.
3192 // To bypass the problem, we take point from 3D curve of EDGE.
3193 // It solves pb of the bloc_fiss_new.py
3194 const double tol = 1e-3;
3195 if ( V < tol || V+tol >= 1. )
3197 nn[0] = V < tol ? u_col1->second.front() : u_col1->second.back();
3198 nn[2] = V < tol ? u_col2->second.front() : u_col2->second.back();
3206 TopoDS_Shape s = myHelper.GetSubShapeByNode( nn[0], myHelper.GetMeshDS() );
3207 if ( s.ShapeType() != TopAbs_EDGE )
3208 s = myHelper.GetSubShapeByNode( nn[2], myHelper.GetMeshDS() );
3209 if ( s.ShapeType() == TopAbs_EDGE )
3210 edge = TopoDS::Edge( s );
3212 if ( !edge.IsNull() )
3214 double u1 = myHelper.GetNodeU( edge, nn[0] );
3215 double u3 = myHelper.GetNodeU( edge, nn[2] );
3216 double u = u1 * ( 1 - hR ) + u3 * hR;
3217 TopLoc_Location loc; double f,l;
3218 Handle(Geom_Curve) curve = BRep_Tool::Curve( edge,loc,f,l );
3219 return curve->Value( u ).Transformed( loc );
3222 // END issue 0020680: Bad cell created by Radial prism in center of torus
3224 vR = getRAndNodes( & u_col1->second, V, nn[0], nn[1] );
3225 vR = getRAndNodes( & u_col2->second, V, nn[2], nn[3] );
3227 if ( !myShapeID2Surf.empty() ) // side is vertically composite
3229 // find a FACE on which the 4 nodes lie
3230 TSideFace* me = (TSideFace*) this;
3231 int notFaceID1 = 0, notFaceID2 = 0;
3232 for ( int i = 0; i < 4; ++i )
3233 if ( nn[i]->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE ) // node on FACE
3235 me->mySurface = me->myShapeID2Surf[ nn[i]->getshapeId() ];
3239 else if ( notFaceID1 == 0 ) // node on EDGE or VERTEX
3241 me->mySurface = me->myShapeID2Surf[ nn[i]->getshapeId() ];
3242 notFaceID1 = nn[i]->getshapeId();
3244 else if ( notFaceID1 != nn[i]->getshapeId() ) // node on other EDGE or VERTEX
3246 if ( mySurface != me->myShapeID2Surf[ nn[i]->getshapeId() ])
3247 notFaceID2 = nn[i]->getshapeId();
3249 if ( notFaceID2 ) // no nodes of FACE and nodes are on different FACEs
3251 SMESHDS_Mesh* meshDS = myHelper.GetMeshDS();
3252 TopoDS_Shape face = myHelper.GetCommonAncestor( meshDS->IndexToShape( notFaceID1 ),
3253 meshDS->IndexToShape( notFaceID2 ),
3254 *myHelper.GetMesh(),
3256 if ( face.IsNull() )
3257 throw SALOME_Exception("StdMeshers_PrismAsBlock::TSideFace::Value() face.IsNull()");
3258 int faceID = meshDS->ShapeToIndex( face );
3259 me->mySurface = me->myShapeID2Surf[ faceID ];
3261 throw SALOME_Exception("StdMeshers_PrismAsBlock::TSideFace::Value() !mySurface");
3264 ((TSideFace*) this)->myHelper.SetSubShape( mySurface->Face() );
3266 gp_XY uv1 = myHelper.GetNodeUV( mySurface->Face(), nn[0], nn[2]);
3267 gp_XY uv2 = myHelper.GetNodeUV( mySurface->Face(), nn[1], nn[3]);
3268 gp_XY uv12 = uv1 * ( 1 - vR ) + uv2 * vR;
3270 gp_XY uv3 = myHelper.GetNodeUV( mySurface->Face(), nn[2], nn[0]);
3271 gp_XY uv4 = myHelper.GetNodeUV( mySurface->Face(), nn[3], nn[1]);
3272 gp_XY uv34 = uv3 * ( 1 - vR ) + uv4 * vR;
3274 gp_XY uv = uv12 * ( 1 - hR ) + uv34 * hR;
3276 gp_Pnt p = mySurface->Value( uv.X(), uv.Y() );
3281 //================================================================================
3283 * \brief Return boundary edge
3284 * \param edge - edge index
3285 * \retval TopoDS_Edge - found edge
3287 //================================================================================
3289 TopoDS_Edge StdMeshers_PrismAsBlock::TSideFace::GetEdge(const int iEdge) const
3291 if ( !myComponents.empty() ) {
3293 case V0_EDGE : return myComponents.front()->GetEdge( iEdge );
3294 case V1_EDGE : return myComponents.back() ->GetEdge( iEdge );
3295 default: return TopoDS_Edge();
3299 const SMDS_MeshNode* node = 0;
3300 SMESHDS_Mesh * meshDS = myHelper.GetMesh()->GetMeshDS();
3301 TNodeColumn* column;
3306 column = & (( ++myParamToColumnMap->begin())->second );
3307 node = ( iEdge == TOP_EDGE ) ? column->back() : column->front();
3308 edge = myHelper.GetSubShapeByNode ( node, meshDS );
3309 if ( edge.ShapeType() == TopAbs_VERTEX ) {
3310 column = & ( myParamToColumnMap->begin()->second );
3311 node = ( iEdge == TOP_EDGE ) ? column->back() : column->front();
3316 bool back = ( iEdge == V1_EDGE );
3317 if ( !myIsForward ) back = !back;
3319 column = & ( myParamToColumnMap->rbegin()->second );
3321 column = & ( myParamToColumnMap->begin()->second );
3322 if ( column->size() > 0 )
3323 edge = myHelper.GetSubShapeByNode( (*column)[ 1 ], meshDS );
3324 if ( edge.IsNull() || edge.ShapeType() == TopAbs_VERTEX )
3325 node = column->front();
3330 if ( !edge.IsNull() && edge.ShapeType() == TopAbs_EDGE )
3331 return TopoDS::Edge( edge );
3333 // find edge by 2 vertices
3334 TopoDS_Shape V1 = edge;
3335 TopoDS_Shape V2 = myHelper.GetSubShapeByNode( node, meshDS );
3336 if ( !V2.IsNull() && V2.ShapeType() == TopAbs_VERTEX && !V2.IsSame( V1 ))
3338 TopoDS_Shape ancestor = myHelper.GetCommonAncestor( V1, V2, *myHelper.GetMesh(), TopAbs_EDGE);
3339 if ( !ancestor.IsNull() )
3340 return TopoDS::Edge( ancestor );
3342 return TopoDS_Edge();
3345 //================================================================================
3347 * \brief Fill block sub-shapes
3348 * \param shapeMap - map to fill in
3349 * \retval int - nb inserted sub-shapes
3351 //================================================================================
3353 int StdMeshers_PrismAsBlock::TSideFace::InsertSubShapes(TBlockShapes& shapeMap) const
3358 vector< int > edgeIdVec;
3359 SMESH_Block::GetFaceEdgesIDs( myID, edgeIdVec );
3361 for ( int i = BOTTOM_EDGE; i <=V1_EDGE ; ++i ) {
3362 TopoDS_Edge e = GetEdge( i );
3363 if ( !e.IsNull() ) {
3364 nbInserted += SMESH_Block::Insert( e, edgeIdVec[ i ], shapeMap);
3368 // Insert corner vertices
3370 TParam2ColumnIt col1, col2 ;
3371 vector< int > vertIdVec;
3374 SMESH_Block::GetEdgeVertexIDs( edgeIdVec[ V0_EDGE ], vertIdVec);
3375 GetColumns(0, col1, col2 );
3376 const SMDS_MeshNode* node0 = col1->second.front();
3377 const SMDS_MeshNode* node1 = col1->second.back();
3378 TopoDS_Shape v0 = myHelper.GetSubShapeByNode( node0, myHelper.GetMeshDS());
3379 TopoDS_Shape v1 = myHelper.GetSubShapeByNode( node1, myHelper.GetMeshDS());
3380 if ( v0.ShapeType() == TopAbs_VERTEX ) {
3381 nbInserted += SMESH_Block::Insert( v0, vertIdVec[ 0 ], shapeMap);
3383 if ( v1.ShapeType() == TopAbs_VERTEX ) {
3384 nbInserted += SMESH_Block::Insert( v1, vertIdVec[ 1 ], shapeMap);
3388 SMESH_Block::GetEdgeVertexIDs( edgeIdVec[ V1_EDGE ], vertIdVec);
3389 GetColumns(1, col1, col2 );
3390 node0 = col2->second.front();
3391 node1 = col2->second.back();
3392 v0 = myHelper.GetSubShapeByNode( node0, myHelper.GetMeshDS());
3393 v1 = myHelper.GetSubShapeByNode( node1, myHelper.GetMeshDS());
3394 if ( v0.ShapeType() == TopAbs_VERTEX ) {
3395 nbInserted += SMESH_Block::Insert( v0, vertIdVec[ 0 ], shapeMap);
3397 if ( v1.ShapeType() == TopAbs_VERTEX ) {
3398 nbInserted += SMESH_Block::Insert( v1, vertIdVec[ 1 ], shapeMap);
3401 // TopoDS_Vertex V0, V1, Vcom;
3402 // TopExp::Vertices( myBaseEdge, V0, V1, true );
3403 // if ( !myIsForward ) std::swap( V0, V1 );
3405 // // bottom vertex IDs
3406 // SMESH_Block::GetEdgeVertexIDs( edgeIdVec[ _u0 ], vertIdVec);
3407 // SMESH_Block::Insert( V0, vertIdVec[ 0 ], shapeMap);
3408 // SMESH_Block::Insert( V1, vertIdVec[ 1 ], shapeMap);
3410 // TopoDS_Edge sideEdge = GetEdge( V0_EDGE );
3411 // if ( sideEdge.IsNull() || !TopExp::CommonVertex( botEdge, sideEdge, Vcom ))
3414 // // insert one side edge
3416 // if ( Vcom.IsSame( V0 )) edgeID = edgeIdVec[ _v0 ];
3417 // else edgeID = edgeIdVec[ _v1 ];
3418 // SMESH_Block::Insert( sideEdge, edgeID, shapeMap);
3420 // // top vertex of the side edge
3421 // SMESH_Block::GetEdgeVertexIDs( edgeID, vertIdVec);
3422 // TopoDS_Vertex Vtop = TopExp::FirstVertex( sideEdge );
3423 // if ( Vcom.IsSame( Vtop ))
3424 // Vtop = TopExp::LastVertex( sideEdge );
3425 // SMESH_Block::Insert( Vtop, vertIdVec[ 1 ], shapeMap);
3427 // // other side edge
3428 // sideEdge = GetEdge( V1_EDGE );
3429 // if ( sideEdge.IsNull() )
3431 // if ( edgeID = edgeIdVec[ _v1 ]) edgeID = edgeIdVec[ _v0 ];
3432 // else edgeID = edgeIdVec[ _v1 ];
3433 // SMESH_Block::Insert( sideEdge, edgeID, shapeMap);
3436 // TopoDS_Edge topEdge = GetEdge( TOP_EDGE );
3437 // SMESH_Block::Insert( topEdge, edgeIdVec[ _u1 ], shapeMap);
3439 // // top vertex of the other side edge
3440 // if ( !TopExp::CommonVertex( topEdge, sideEdge, Vcom ))
3442 // SMESH_Block::GetEdgeVertexIDs( edgeID, vertIdVec );
3443 // SMESH_Block::Insert( Vcom, vertIdVec[ 1 ], shapeMap);
3448 //================================================================================
3450 * \brief Dump ids of nodes of sides
3452 //================================================================================
3454 void StdMeshers_PrismAsBlock::TSideFace::dumpNodes(int nbNodes) const
3457 cout << endl << "NODES OF FACE "; SMESH_Block::DumpShapeID( myID, cout ) << endl;
3458 THorizontalEdgeAdaptor* hSize0 = (THorizontalEdgeAdaptor*) HorizCurve(0);
3459 cout << "Horiz side 0: "; hSize0->dumpNodes(nbNodes); cout << endl;
3460 THorizontalEdgeAdaptor* hSize1 = (THorizontalEdgeAdaptor*) HorizCurve(1);
3461 cout << "Horiz side 1: "; hSize1->dumpNodes(nbNodes); cout << endl;
3462 TVerticalEdgeAdaptor* vSide0 = (TVerticalEdgeAdaptor*) VertiCurve(0);
3463 cout << "Verti side 0: "; vSide0->dumpNodes(nbNodes); cout << endl;
3464 TVerticalEdgeAdaptor* vSide1 = (TVerticalEdgeAdaptor*) VertiCurve(1);
3465 cout << "Verti side 1: "; vSide1->dumpNodes(nbNodes); cout << endl;
3466 delete hSize0; delete hSize1; delete vSide0; delete vSide1;
3470 //================================================================================
3472 * \brief Creates TVerticalEdgeAdaptor
3473 * \param columnsMap - node column map
3474 * \param parameter - normalized parameter
3476 //================================================================================
3478 StdMeshers_PrismAsBlock::TVerticalEdgeAdaptor::
3479 TVerticalEdgeAdaptor( const TParam2ColumnMap* columnsMap, const double parameter)
3481 myNodeColumn = & getColumn( columnsMap, parameter )->second;
3484 //================================================================================
3486 * \brief Return coordinates for the given normalized parameter
3487 * \param U - normalized parameter
3488 * \retval gp_Pnt - coordinates
3490 //================================================================================
3492 gp_Pnt StdMeshers_PrismAsBlock::TVerticalEdgeAdaptor::Value(const Standard_Real U) const
3494 const SMDS_MeshNode* n1;
3495 const SMDS_MeshNode* n2;
3496 double r = getRAndNodes( myNodeColumn, U, n1, n2 );
3497 return gpXYZ(n1) * ( 1 - r ) + gpXYZ(n2) * r;
3500 //================================================================================
3502 * \brief Dump ids of nodes
3504 //================================================================================
3506 void StdMeshers_PrismAsBlock::TVerticalEdgeAdaptor::dumpNodes(int nbNodes) const
3509 for ( int i = 0; i < nbNodes && i < myNodeColumn->size(); ++i )
3510 cout << (*myNodeColumn)[i]->GetID() << " ";
3511 if ( nbNodes < myNodeColumn->size() )
3512 cout << myNodeColumn->back()->GetID();
3516 //================================================================================
3518 * \brief Return coordinates for the given normalized parameter
3519 * \param U - normalized parameter
3520 * \retval gp_Pnt - coordinates
3522 //================================================================================
3524 gp_Pnt StdMeshers_PrismAsBlock::THorizontalEdgeAdaptor::Value(const Standard_Real U) const
3526 return mySide->TSideFace::Value( U, myV );
3529 //================================================================================
3531 * \brief Dump ids of <nbNodes> first nodes and the last one
3533 //================================================================================
3535 void StdMeshers_PrismAsBlock::THorizontalEdgeAdaptor::dumpNodes(int nbNodes) const
3538 // Not bedugged code. Last node is sometimes incorrect
3539 const TSideFace* side = mySide;
3541 if ( mySide->IsComplex() )
3542 side = mySide->GetComponent(0,u);
3544 TParam2ColumnIt col, col2;
3545 TParam2ColumnMap* u2cols = side->GetColumns();
3546 side->GetColumns( u , col, col2 );
3548 int j, i = myV ? mySide->ColumnHeight()-1 : 0;
3550 const SMDS_MeshNode* n = 0;
3551 const SMDS_MeshNode* lastN
3552 = side->IsForward() ? u2cols->rbegin()->second[ i ] : u2cols->begin()->second[ i ];
3553 for ( j = 0; j < nbNodes && n != lastN; ++j )
3555 n = col->second[ i ];
3556 cout << n->GetID() << " ";
3557 if ( side->IsForward() )
3565 if ( mySide->IsComplex() )
3566 side = mySide->GetComponent(1,u);
3568 side->GetColumns( u , col, col2 );
3569 if ( n != col->second[ i ] )
3570 cout << col->second[ i ]->GetID();
3574 //================================================================================
3576 * \brief Costructor of TPCurveOnHorFaceAdaptor fills its map of
3577 * normalized parameter to node UV on a horizontal face
3578 * \param [in] sideFace - lateral prism side
3579 * \param [in] isTop - is \a horFace top or bottom of the prism
3580 * \param [in] horFace - top or bottom face of the prism
3582 //================================================================================
3584 StdMeshers_PrismAsBlock::
3585 TPCurveOnHorFaceAdaptor::TPCurveOnHorFaceAdaptor( const TSideFace* sideFace,
3587 const TopoDS_Face& horFace)
3589 if ( sideFace && !horFace.IsNull() )
3591 //cout << "\n\t FACE " << sideFace->FaceID() << endl;
3592 const int Z = isTop ? sideFace->ColumnHeight() - 1 : 0;
3593 map<double, const SMDS_MeshNode* > u2nodes;
3594 sideFace->GetNodesAtZ( Z, u2nodes );
3596 SMESH_MesherHelper helper( *sideFace->GetMesh() );
3597 helper.SetSubShape( horFace );
3602 Handle(Geom2d_Curve) C2d;
3604 const double tol = 10 * helper.MaxTolerance( horFace );
3605 const SMDS_MeshNode* prevNode = u2nodes.rbegin()->second;
3607 map<double, const SMDS_MeshNode* >::iterator u2n = u2nodes.begin();
3608 for ( ; u2n != u2nodes.end(); ++u2n )
3610 const SMDS_MeshNode* n = u2n->second;
3612 if ( n->GetPosition()->GetTypeOfPosition() == SMDS_TOP_EDGE )
3614 if ( n->getshapeId() != edgeID )
3617 edgeID = n->getshapeId();
3618 TopoDS_Shape S = helper.GetSubShapeByNode( n, helper.GetMeshDS() );
3619 if ( !S.IsNull() && S.ShapeType() == TopAbs_EDGE )
3621 C2d = BRep_Tool::CurveOnSurface( TopoDS::Edge( S ), horFace, f,l );
3624 if ( !C2d.IsNull() )
3626 double u = static_cast< const SMDS_EdgePosition* >( n->GetPosition() )->GetUParameter();
3627 if ( f <= u && u <= l )
3629 uv = C2d->Value( u ).XY();
3630 okUV = helper.CheckNodeUV( horFace, n, uv, tol );
3635 uv = helper.GetNodeUV( horFace, n, prevNode, &okUV );
3637 myUVmap.insert( myUVmap.end(), make_pair( u2n->first, uv ));
3638 // cout << n->getshapeId() << " N " << n->GetID()
3639 // << " \t" << uv.X() << ", " << uv.Y() << " \t" << u2n->first << endl;
3646 //================================================================================
3648 * \brief Return UV on pcurve for the given normalized parameter
3649 * \param U - normalized parameter
3650 * \retval gp_Pnt - coordinates
3652 //================================================================================
3654 gp_Pnt2d StdMeshers_PrismAsBlock::TPCurveOnHorFaceAdaptor::Value(const Standard_Real U) const
3656 map< double, gp_XY >::const_iterator i1 = myUVmap.upper_bound( U );
3658 if ( i1 == myUVmap.end() )
3659 return myUVmap.rbegin()->second;
3661 if ( i1 == myUVmap.begin() )
3662 return (*i1).second;
3664 map< double, gp_XY >::const_iterator i2 = i1--;
3666 double r = ( U - i1->first ) / ( i2->first - i1->first );
3667 return i1->second * ( 1 - r ) + i2->second * r;