1 // Copyright (C) 2007-2014 CEA/DEN, EDF R&D, OPEN CASCADE
3 // Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
6 // This library is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU Lesser General Public
8 // License as published by the Free Software Foundation; either
9 // version 2.1 of the License, or (at your option) any later version.
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // Lesser General Public License for more details.
16 // You should have received a copy of the GNU Lesser General Public
17 // License along with this library; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
23 // File : StdMeshers_Prism_3D.cxx
25 // Created : Fri Oct 20 11:37:07 2006
26 // Author : Edward AGAPOV (eap)
28 #include "StdMeshers_Prism_3D.hxx"
30 #include "SMDS_EdgePosition.hxx"
31 #include "SMDS_VolumeOfNodes.hxx"
32 #include "SMDS_VolumeTool.hxx"
33 #include "SMESH_Comment.hxx"
34 #include "SMESH_Gen.hxx"
35 #include "SMESH_HypoFilter.hxx"
36 #include "SMESH_MesherHelper.hxx"
37 #include "StdMeshers_FaceSide.hxx"
38 #include "StdMeshers_ProjectionSource1D.hxx"
39 #include "StdMeshers_ProjectionSource2D.hxx"
40 #include "StdMeshers_ProjectionUtils.hxx"
41 #include "StdMeshers_Projection_1D.hxx"
42 #include "StdMeshers_Projection_1D2D.hxx"
43 #include "StdMeshers_Quadrangle_2D.hxx"
45 #include "utilities.h"
47 #include <BRepAdaptor_CompCurve.hxx>
48 #include <BRep_Tool.hxx>
49 #include <Bnd_B3d.hxx>
50 #include <Geom2dAdaptor_Curve.hxx>
51 #include <Geom2d_Line.hxx>
52 #include <Geom_Curve.hxx>
54 #include <TopExp_Explorer.hxx>
55 #include <TopTools_ListIteratorOfListOfShape.hxx>
56 #include <TopTools_ListOfShape.hxx>
57 #include <TopTools_MapOfShape.hxx>
58 #include <TopTools_SequenceOfShape.hxx>
67 #define RETURN_BAD_RESULT(msg) { MESSAGE(")-: Error: " << msg); return false; }
68 #define gpXYZ(n) SMESH_TNodeXYZ(n)
71 #define DBGOUT(msg) //cout << msg << endl;
72 #define SHOWYXZ(msg, xyz) \
73 // { gp_Pnt p (xyz); \
74 // cout << msg << " ("<< p.X() << "; " <<p.Y() << "; " <<p.Z() << ") " <<endl; }
77 #define SHOWYXZ(msg, xyz)
80 namespace TAssocTool = StdMeshers_ProjectionUtils;
82 typedef SMESH_Comment TCom;
84 enum { ID_BOT_FACE = SMESH_Block::ID_Fxy0,
85 ID_TOP_FACE = SMESH_Block::ID_Fxy1,
86 BOTTOM_EDGE = 0, TOP_EDGE, V0_EDGE, V1_EDGE, // edge IDs in face
87 NB_WALL_FACES = 4 }; //
91 //=======================================================================
93 * \brief Quadrangle algorithm
95 struct TQuadrangleAlgo : public StdMeshers_Quadrangle_2D
97 TQuadrangleAlgo(int studyId, SMESH_Gen* gen)
98 : StdMeshers_Quadrangle_2D( gen->GetANewId(), studyId, gen)
101 static StdMeshers_Quadrangle_2D* instance( SMESH_Algo* fatherAlgo,
102 SMESH_MesherHelper* helper=0)
104 static TQuadrangleAlgo* algo = new TQuadrangleAlgo( fatherAlgo->GetStudyId(),
105 fatherAlgo->GetGen() );
108 algo->myProxyMesh->GetMesh() != helper->GetMesh() )
109 algo->myProxyMesh.reset( new SMESH_ProxyMesh( *helper->GetMesh() ));
111 algo->myQuadList.clear();
114 algo->_quadraticMesh = helper->GetIsQuadratic();
119 //=======================================================================
121 * \brief Algorithm projecting 1D mesh
123 struct TProjction1dAlgo : public StdMeshers_Projection_1D
125 StdMeshers_ProjectionSource1D myHyp;
127 TProjction1dAlgo(int studyId, SMESH_Gen* gen)
128 : StdMeshers_Projection_1D( gen->GetANewId(), studyId, gen),
129 myHyp( gen->GetANewId(), studyId, gen)
131 StdMeshers_Projection_1D::_sourceHypo = & myHyp;
133 static TProjction1dAlgo* instance( SMESH_Algo* fatherAlgo )
135 static TProjction1dAlgo* algo = new TProjction1dAlgo( fatherAlgo->GetStudyId(),
136 fatherAlgo->GetGen() );
140 //=======================================================================
142 * \brief Algorithm projecting 2D mesh
144 struct TProjction2dAlgo : public StdMeshers_Projection_1D2D
146 StdMeshers_ProjectionSource2D myHyp;
148 TProjction2dAlgo(int studyId, SMESH_Gen* gen)
149 : StdMeshers_Projection_1D2D( gen->GetANewId(), studyId, gen),
150 myHyp( gen->GetANewId(), studyId, gen)
152 StdMeshers_Projection_2D::_sourceHypo = & myHyp;
154 static TProjction2dAlgo* instance( SMESH_Algo* fatherAlgo )
156 static TProjction2dAlgo* algo = new TProjction2dAlgo( fatherAlgo->GetStudyId(),
157 fatherAlgo->GetGen() );
161 //=======================================================================
163 * \brief Returns already computed EDGEs
165 void getPrecomputedEdges( SMESH_MesherHelper& theHelper,
166 const TopoDS_Shape& theShape,
167 vector< TopoDS_Edge >& theEdges)
171 SMESHDS_Mesh* meshDS = theHelper.GetMeshDS();
174 TopTools_IndexedMapOfShape edges;
175 TopExp::MapShapes( theShape, TopAbs_EDGE, edges );
176 for ( int iE = 1; iE <= edges.Extent(); ++iE )
178 const TopoDS_Shape edge = edges( iE );
179 if (( ! ( sm = meshDS->MeshElements( edge ))) ||
180 ( sm->NbElements() == 0 ))
183 // there must not be FACEs meshed with triangles and sharing a computed EDGE
184 // as the precomputed EDGEs are used for propagation other to 'vertical' EDGEs
185 bool faceFound = false;
186 PShapeIteratorPtr faceIt =
187 theHelper.GetAncestors( edge, *theHelper.GetMesh(), TopAbs_FACE );
188 while ( const TopoDS_Shape* face = faceIt->next() )
190 if (( sm = meshDS->MeshElements( *face )) &&
191 ( sm->NbElements() > 0 ) &&
192 ( !theHelper.IsSameElemGeometry( sm, SMDSGeom_QUADRANGLE ) ))
198 theEdges.push_back( TopoDS::Edge( edge ));
202 //================================================================================
204 * \brief Make \a botE be the BOTTOM_SIDE of \a quad.
205 * Return false if the BOTTOM_SIDE is composite
207 //================================================================================
209 bool setBottomEdge( const TopoDS_Edge& botE,
210 FaceQuadStruct::Ptr& quad,
211 const TopoDS_Shape& face)
213 quad->side[ QUAD_TOP_SIDE ].grid->Reverse();
214 quad->side[ QUAD_LEFT_SIDE ].grid->Reverse();
216 bool isComposite = false;
217 for ( size_t i = 0; i < quad->side.size(); ++i )
219 StdMeshers_FaceSidePtr quadSide = quad->side[i];
220 for ( int iE = 0; iE < quadSide->NbEdges(); ++iE )
221 if ( botE.IsSame( quadSide->Edge( iE )))
223 if ( quadSide->NbEdges() > 1 )
224 isComposite = true; //return false;
226 i = quad->side.size(); // to quit from the outer loop
230 if ( edgeIndex != QUAD_BOTTOM_SIDE )
231 quad->shift( quad->side.size() - edgeIndex, /*keepUnitOri=*/false );
233 quad->face = TopoDS::Face( face );
238 //================================================================================
240 * \brief Return iterator pointing to node column for the given parameter
241 * \param columnsMap - node column map
242 * \param parameter - parameter
243 * \retval TParam2ColumnMap::iterator - result
245 * it returns closest left column
247 //================================================================================
249 TParam2ColumnIt getColumn( const TParam2ColumnMap* columnsMap,
250 const double parameter )
252 TParam2ColumnIt u_col = columnsMap->upper_bound( parameter );
253 if ( u_col != columnsMap->begin() )
255 return u_col; // return left column
258 //================================================================================
260 * \brief Return nodes around given parameter and a ratio
261 * \param column - node column
262 * \param param - parameter
263 * \param node1 - lower node
264 * \param node2 - upper node
265 * \retval double - ratio
267 //================================================================================
269 double getRAndNodes( const TNodeColumn* column,
271 const SMDS_MeshNode* & node1,
272 const SMDS_MeshNode* & node2)
274 if ( param >= 1.0 || column->size() == 1) {
275 node1 = node2 = column->back();
279 int i = int( param * ( column->size() - 1 ));
280 double u0 = double( i )/ double( column->size() - 1 );
281 double r = ( param - u0 ) * ( column->size() - 1 );
283 node1 = (*column)[ i ];
284 node2 = (*column)[ i + 1];
288 //================================================================================
290 * \brief Compute boundary parameters of face parts
291 * \param nbParts - nb of parts to split columns into
292 * \param columnsMap - node columns of the face to split
293 * \param params - computed parameters
295 //================================================================================
297 void splitParams( const int nbParts,
298 const TParam2ColumnMap* columnsMap,
299 vector< double > & params)
302 params.reserve( nbParts + 1 );
303 TParam2ColumnIt last_par_col = --columnsMap->end();
304 double par = columnsMap->begin()->first; // 0.
305 double parLast = last_par_col->first;
306 params.push_back( par );
307 for ( int i = 0; i < nbParts - 1; ++ i )
309 double partSize = ( parLast - par ) / double ( nbParts - i );
310 TParam2ColumnIt par_col = getColumn( columnsMap, par + partSize );
311 if ( par_col->first == par ) {
313 if ( par_col == last_par_col ) {
314 while ( i < nbParts - 1 )
315 params.push_back( par + partSize * i++ );
319 par = par_col->first;
320 params.push_back( par );
322 params.push_back( parLast ); // 1.
325 //================================================================================
327 * \brief Return coordinate system for z-th layer of nodes
329 //================================================================================
331 gp_Ax2 getLayerCoordSys(const int z,
332 const vector< const TNodeColumn* >& columns,
335 // gravity center of a layer
338 for ( int i = 0; i < columns.size(); ++i )
340 O += gpXYZ( (*columns[ i ])[ z ]);
341 if ( vertexCol < 0 &&
342 columns[ i ]->front()->GetPosition()->GetTypeOfPosition() == SMDS_TOP_VERTEX )
349 int iPrev = columns.size()-1;
350 for ( int i = 0; i < columns.size(); ++i )
352 gp_Vec v1( O, gpXYZ( (*columns[ iPrev ])[ z ]));
353 gp_Vec v2( O, gpXYZ( (*columns[ i ] )[ z ]));
358 if ( vertexCol >= 0 )
360 O = gpXYZ( (*columns[ vertexCol ])[ z ]);
362 if ( xColumn < 0 || xColumn >= columns.size() )
364 // select a column for X dir
366 for ( int i = 0; i < columns.size(); ++i )
368 double dist = ( O - gpXYZ((*columns[ i ])[ z ])).SquareModulus();
369 if ( dist > maxDist )
378 gp_Vec X( O, gpXYZ( (*columns[ xColumn ])[ z ]));
380 return gp_Ax2( O, Z, X);
383 //================================================================================
385 * \brief Removes submeshes that are or can be meshed with regular grid from given list
386 * \retval int - nb of removed submeshes
388 //================================================================================
390 int removeQuasiQuads(list< SMESH_subMesh* >& notQuadSubMesh,
391 SMESH_MesherHelper* helper,
392 StdMeshers_Quadrangle_2D* quadAlgo)
395 //SMESHDS_Mesh* mesh = notQuadSubMesh.front()->GetFather()->GetMeshDS();
396 list< SMESH_subMesh* >::iterator smIt = notQuadSubMesh.begin();
397 while ( smIt != notQuadSubMesh.end() )
399 SMESH_subMesh* faceSm = *smIt;
400 SMESHDS_SubMesh* faceSmDS = faceSm->GetSubMeshDS();
401 int nbQuads = faceSmDS ? faceSmDS->NbElements() : 0;
404 toRemove = helper->IsStructured( faceSm );
406 toRemove = quadAlgo->CheckNbEdges( *helper->GetMesh(),
407 faceSm->GetSubShape() );
408 nbRemoved += toRemove;
410 smIt = notQuadSubMesh.erase( smIt );
418 //================================================================================
420 * \brief Return and angle between two EDGEs
421 * \return double - the angle normalized so that
428 //================================================================================
430 // double normAngle(const TopoDS_Edge & E1, const TopoDS_Edge & E2, const TopoDS_Face & F)
432 // return SMESH_MesherHelper::GetAngle( E1, E2, F ) / ( 0.5 * M_PI );
435 //================================================================================
437 * Consider continuous straight EDGES as one side - mark them to unite
439 //================================================================================
441 int countNbSides( const Prism_3D::TPrismTopo & thePrism,
442 vector<int> & nbUnitePerEdge,
443 vector< double > & edgeLength)
445 int nbEdges = thePrism.myNbEdgesInWires.front(); // nb outer edges
446 int nbSides = nbEdges;
449 list< TopoDS_Edge >::const_iterator edgeIt = thePrism.myBottomEdges.begin();
450 std::advance( edgeIt, nbEdges-1 );
451 TopoDS_Edge prevE = *edgeIt;
452 // bool isPrevStraight = SMESH_Algo::IsStraight( prevE );
453 int iPrev = nbEdges - 1;
455 int iUnite = -1; // the first of united EDGEs
457 // analyse angles between EDGEs
459 vector< bool > isCorner( nbEdges );
460 edgeIt = thePrism.myBottomEdges.begin();
461 for ( int iE = 0; iE < nbEdges; ++iE, ++edgeIt )
463 const TopoDS_Edge& curE = *edgeIt;
464 edgeLength[ iE ] = SMESH_Algo::EdgeLength( curE );
466 // double normAngle = normAngle( prevE, curE, thePrism.myBottom );
467 // isCorner[ iE ] = false;
468 // if ( normAngle < 2.0 )
470 // if ( normAngle < 0.001 ) // straight or obtuse angle
472 // // unite EDGEs in order not to put a corner of the unit quadrangle at this VERTEX
475 // nbUnitePerEdge[ iUnite ]++;
476 // nbUnitePerEdge[ iE ] = -1;
481 // isCorner[ iE ] = true;
491 // define which of corners to put on a side of the unit quadrangle
493 // edgeIt = thePrism.myBottomEdges.begin();
494 // for ( int iE = 0; iE < nbEdges; ++iE, ++edgeIt )
496 // const TopoDS_Edge& curE = *edgeIt;
497 // edgeLength[ iE ] = SMESH_Algo::EdgeLength( curE );
499 // const bool isCurStraight = SMESH_Algo::IsStraight( curE );
500 // if ( isPrevStraight && isCurStraight && SMESH_Algo::IsContinuous( prevE, curE ))
504 // nbUnitePerEdge[ iUnite ]++;
505 // nbUnitePerEdge[ iE ] = -1;
513 // isPrevStraight = isCurStraight;
520 void pointsToPython(const std::vector<gp_XYZ>& p)
523 for ( int i = SMESH_Block::ID_V000; i < p.size(); ++i )
525 cout << "mesh.AddNode( " << p[i].X() << ", "<< p[i].Y() << ", "<< p[i].Z() << ") # " << i <<" " ;
526 SMESH_Block::DumpShapeID( i, cout ) << endl;
532 //=======================================================================
533 //function : StdMeshers_Prism_3D
535 //=======================================================================
537 StdMeshers_Prism_3D::StdMeshers_Prism_3D(int hypId, int studyId, SMESH_Gen* gen)
538 :SMESH_3D_Algo(hypId, studyId, gen)
541 _shapeType = (1 << TopAbs_SOLID); // 1 bit per shape type
542 _onlyUnaryInput = false; // accept all SOLIDs at once
543 _requireDiscreteBoundary = false; // mesh FACEs and EDGEs by myself
544 _supportSubmeshes = true; // "source" FACE must be meshed by other algo
545 _neededLowerHyps[ 1 ] = true; // suppress warning on hiding a global 1D algo
546 _neededLowerHyps[ 2 ] = true; // suppress warning on hiding a global 2D algo
548 //myProjectTriangles = false;
549 mySetErrorToSM = true; // to pass an error to a sub-mesh of a current solid or not
552 //================================================================================
556 //================================================================================
558 StdMeshers_Prism_3D::~StdMeshers_Prism_3D()
561 //=======================================================================
562 //function : CheckHypothesis
564 //=======================================================================
566 bool StdMeshers_Prism_3D::CheckHypothesis(SMESH_Mesh& aMesh,
567 const TopoDS_Shape& aShape,
568 SMESH_Hypothesis::Hypothesis_Status& aStatus)
570 // Check shape geometry
572 aStatus = SMESH_Hypothesis::HYP_BAD_GEOMETRY;
574 // find not quadrangle faces
575 list< TopoDS_Shape > notQuadFaces;
576 int nbEdge, nbWire, nbFace = 0;
577 TopExp_Explorer exp( aShape, TopAbs_FACE );
578 for ( ; exp.More(); exp.Next() ) {
580 const TopoDS_Shape& face = exp.Current();
581 nbEdge = TAssocTool::Count( face, TopAbs_EDGE, 0 );
582 nbWire = TAssocTool::Count( face, TopAbs_WIRE, 0 );
583 if ( nbEdge!= 4 || nbWire!= 1 ) {
584 if ( !notQuadFaces.empty() ) {
585 if ( TAssocTool::Count( notQuadFaces.back(), TopAbs_EDGE, 0 ) != nbEdge ||
586 TAssocTool::Count( notQuadFaces.back(), TopAbs_WIRE, 0 ) != nbWire )
587 RETURN_BAD_RESULT("Different not quad faces");
589 notQuadFaces.push_back( face );
592 if ( !notQuadFaces.empty() )
594 if ( notQuadFaces.size() != 2 )
595 RETURN_BAD_RESULT("Bad nb not quad faces: " << notQuadFaces.size());
597 // check total nb faces
598 nbEdge = TAssocTool::Count( notQuadFaces.back(), TopAbs_EDGE, 0 );
599 if ( nbFace != nbEdge + 2 )
600 RETURN_BAD_RESULT("Bad nb of faces: " << nbFace << " but must be " << nbEdge + 2);
604 aStatus = SMESH_Hypothesis::HYP_OK;
608 //=======================================================================
610 //purpose : Compute mesh on a COMPOUND of SOLIDs
611 //=======================================================================
613 bool StdMeshers_Prism_3D::Compute(SMESH_Mesh& theMesh, const TopoDS_Shape& theShape)
615 SMESH_MesherHelper helper( theMesh );
618 int nbSolids = helper.Count( theShape, TopAbs_SOLID, /*skipSame=*/false );
622 TopTools_IndexedDataMapOfShapeListOfShape faceToSolids;
623 TopExp::MapShapesAndAncestors( theShape, TopAbs_FACE, TopAbs_SOLID, faceToSolids );
625 // look for meshed FACEs ("source" FACEs) that must be prism bottoms
626 list< TopoDS_Face > meshedFaces, notQuadMeshedFaces, notQuadFaces;
627 const bool meshHasQuads = ( theMesh.NbQuadrangles() > 0 );
628 //StdMeshers_Quadrangle_2D* quadAlgo = TQuadrangleAlgo::instance( this );
629 for ( int iF = 1; iF <= faceToSolids.Extent(); ++iF )
631 const TopoDS_Face& face = TopoDS::Face( faceToSolids.FindKey( iF ));
632 SMESH_subMesh* faceSM = theMesh.GetSubMesh( face );
633 if ( !faceSM->IsEmpty() )
635 if ( !meshHasQuads ||
636 !helper.IsSameElemGeometry( faceSM->GetSubMeshDS(), SMDSGeom_QUADRANGLE ) ||
637 !helper.IsStructured( faceSM )
639 notQuadMeshedFaces.push_front( face );
640 else if ( myHelper->Count( face, TopAbs_EDGE, /*ignoreSame=*/false ) != 4 )
641 meshedFaces.push_front( face );
643 meshedFaces.push_back( face );
645 // not add not quadrilateral FACE as we can't compute it
646 // else if ( !quadAlgo->CheckNbEdges( theMesh, face ))
647 // // not add not quadrilateral FACE as it can be a prism side
648 // // else if ( myHelper->Count( face, TopAbs_EDGE, /*ignoreSame=*/false ) != 4 )
650 // notQuadFaces.push_back( face );
653 // notQuadFaces are of medium priority, put them before ordinary meshed faces
654 meshedFaces.splice( meshedFaces.begin(), notQuadFaces );
655 // notQuadMeshedFaces are of highest priority, put them before notQuadFaces
656 meshedFaces.splice( meshedFaces.begin(), notQuadMeshedFaces );
658 Prism_3D::TPrismTopo prism;
663 if ( !meshedFaces.empty() )
664 prism.myBottom = meshedFaces.front();
665 return ( initPrism( prism, TopExp_Explorer( theShape, TopAbs_SOLID ).Current() ) &&
669 // find propagation chains from already computed EDGEs
670 vector< TopoDS_Edge > computedEdges;
671 getPrecomputedEdges( helper, theShape, computedEdges );
672 myPropagChains = new TopTools_IndexedMapOfShape[ computedEdges.size() + 1 ];
673 SMESHUtils::ArrayDeleter< TopTools_IndexedMapOfShape > pcDel( myPropagChains );
674 for ( size_t i = 0, nb = 0; i < computedEdges.size(); ++i )
676 StdMeshers_ProjectionUtils::GetPropagationEdge( &theMesh, TopoDS_Edge(),
677 computedEdges[i], myPropagChains + nb );
678 if ( myPropagChains[ nb ].Extent() < 2 ) // an empty map is a termination sign
679 myPropagChains[ nb ].Clear();
684 TopTools_MapOfShape meshedSolids;
685 list< Prism_3D::TPrismTopo > meshedPrism;
686 TopTools_ListIteratorOfListOfShape solidIt;
688 while ( meshedSolids.Extent() < nbSolids )
690 if ( _computeCanceled )
691 return toSM( error( SMESH_ComputeError::New(COMPERR_CANCELED)));
693 // compute prisms having avident computed source FACE
694 while ( !meshedFaces.empty() )
696 TopoDS_Face face = meshedFaces.front();
697 meshedFaces.pop_front();
698 TopTools_ListOfShape& solidList = faceToSolids.ChangeFromKey( face );
699 while ( !solidList.IsEmpty() )
701 TopoDS_Shape solid = solidList.First();
702 solidList.RemoveFirst();
703 if ( meshedSolids.Add( solid ))
706 prism.myBottom = face;
707 if ( !initPrism( prism, solid ) ||
711 SMESHDS_SubMesh* smDS = theMesh.GetMeshDS()->MeshElements( prism.myTop );
712 if ( !myHelper->IsSameElemGeometry( smDS, SMDSGeom_QUADRANGLE ))
714 meshedFaces.push_front( prism.myTop );
716 meshedPrism.push_back( prism );
720 if ( meshedSolids.Extent() == nbSolids )
723 // below in the loop we try to find source FACEs somehow
725 // project mesh from source FACEs of computed prisms to
726 // prisms sharing wall FACEs
727 list< Prism_3D::TPrismTopo >::iterator prismIt = meshedPrism.begin();
728 for ( ; prismIt != meshedPrism.end(); ++prismIt )
730 for ( size_t iW = 0; iW < prismIt->myWallQuads.size(); ++iW )
732 Prism_3D::TQuadList::iterator wQuad = prismIt->myWallQuads[iW].begin();
733 for ( ; wQuad != prismIt->myWallQuads[iW].end(); ++ wQuad )
735 const TopoDS_Face& wFace = (*wQuad)->face;
736 TopTools_ListOfShape& solidList = faceToSolids.ChangeFromKey( wFace );
737 solidIt.Initialize( solidList );
738 while ( solidIt.More() )
740 const TopoDS_Shape& solid = solidIt.Value();
741 if ( meshedSolids.Contains( solid )) {
742 solidList.Remove( solidIt );
743 continue; // already computed prism
745 // find a source FACE of the SOLID: it's a FACE sharing a bottom EDGE with wFace
746 const TopoDS_Edge& wEdge = (*wQuad)->side[ QUAD_TOP_SIDE ].grid->Edge(0);
747 PShapeIteratorPtr faceIt = myHelper->GetAncestors( wEdge, *myHelper->GetMesh(),
749 while ( const TopoDS_Shape* f = faceIt->next() )
751 const TopoDS_Face& candidateF = TopoDS::Face( *f );
753 prism.myBottom = candidateF;
754 mySetErrorToSM = false;
755 if ( !myHelper->IsSubShape( candidateF, prismIt->myShape3D ) &&
756 myHelper->IsSubShape( candidateF, solid ) &&
757 !myHelper->GetMesh()->GetSubMesh( candidateF )->IsMeshComputed() &&
758 initPrism( prism, solid ) &&
759 project2dMesh( prismIt->myBottom, candidateF))
761 mySetErrorToSM = true;
762 if ( !compute( prism ))
764 SMESHDS_SubMesh* smDS = theMesh.GetMeshDS()->MeshElements( prism.myTop );
765 if ( !myHelper->IsSameElemGeometry( smDS, SMDSGeom_QUADRANGLE ))
767 meshedFaces.push_front( prism.myTop );
768 meshedFaces.push_front( prism.myBottom );
770 meshedPrism.push_back( prism );
771 meshedSolids.Add( solid );
775 mySetErrorToSM = true;
777 if ( meshedSolids.Contains( solid ))
778 solidList.Remove( solidIt );
784 if ( !meshedFaces.empty() )
785 break; // to compute prisms with avident sources
788 // find FACEs with local 1D hyps, which has to be computed by now,
789 // or at least any computed FACEs
790 for ( int iF = 1; ( meshedFaces.empty() && iF < faceToSolids.Extent() ); ++iF )
792 const TopoDS_Face& face = TopoDS::Face( faceToSolids.FindKey( iF ));
793 const TopTools_ListOfShape& solidList = faceToSolids.FindFromKey( face );
794 if ( solidList.IsEmpty() ) continue;
795 SMESH_subMesh* faceSM = theMesh.GetSubMesh( face );
796 if ( !faceSM->IsEmpty() )
798 meshedFaces.push_back( face ); // lower priority
802 bool allSubMeComputed = true;
803 SMESH_subMeshIteratorPtr smIt = faceSM->getDependsOnIterator(false,true);
804 while ( smIt->more() && allSubMeComputed )
805 allSubMeComputed = smIt->next()->IsMeshComputed();
806 if ( allSubMeComputed )
808 faceSM->ComputeStateEngine( SMESH_subMesh::COMPUTE );
809 if ( !faceSM->IsEmpty() )
810 meshedFaces.push_front( face ); // higher priority
812 faceSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
818 // TODO. there are other ways to find out the source FACE:
819 // propagation, topological similarity, ect.
821 // simply try to mesh all not meshed SOLIDs
822 if ( meshedFaces.empty() )
824 for ( TopExp_Explorer solid( theShape, TopAbs_SOLID ); solid.More(); solid.Next() )
826 mySetErrorToSM = false;
828 if ( !meshedSolids.Contains( solid.Current() ) &&
829 initPrism( prism, solid.Current() ))
831 mySetErrorToSM = true;
832 if ( !compute( prism ))
834 meshedFaces.push_front( prism.myTop );
835 meshedFaces.push_front( prism.myBottom );
836 meshedPrism.push_back( prism );
837 meshedSolids.Add( solid.Current() );
839 mySetErrorToSM = true;
843 if ( meshedFaces.empty() ) // set same error to 10 not-computed solids
845 SMESH_ComputeErrorPtr err = SMESH_ComputeError::New
846 ( COMPERR_BAD_INPUT_MESH, "No meshed source face found", this );
848 const int maxNbErrors = 10; // limit nb errors not to overload the Compute dialog
849 TopExp_Explorer solid( theShape, TopAbs_SOLID );
850 for ( int i = 0; ( i < maxNbErrors && solid.More() ); ++i, solid.Next() )
851 if ( !meshedSolids.Contains( solid.Current() ))
853 SMESH_subMesh* sm = theMesh.GetSubMesh( solid.Current() );
854 sm->GetComputeError() = err;
862 //================================================================================
864 * \brief Find wall faces by bottom edges
866 //================================================================================
868 bool StdMeshers_Prism_3D::getWallFaces( Prism_3D::TPrismTopo & thePrism,
869 const int totalNbFaces)
871 thePrism.myWallQuads.clear();
873 SMESH_Mesh* mesh = myHelper->GetMesh();
875 StdMeshers_Quadrangle_2D* quadAlgo = TQuadrangleAlgo::instance( this, myHelper );
877 TopTools_MapOfShape faceMap;
878 TopTools_IndexedDataMapOfShapeListOfShape edgeToFaces;
879 TopExp::MapShapesAndAncestors( thePrism.myShape3D,
880 TopAbs_EDGE, TopAbs_FACE, edgeToFaces );
882 // ------------------------------
883 // Get the 1st row of wall FACEs
884 // ------------------------------
886 list< TopoDS_Edge >::iterator edge = thePrism.myBottomEdges.begin();
887 std::list< int >::iterator nbE = thePrism.myNbEdgesInWires.begin();
890 while ( edge != thePrism.myBottomEdges.end() )
893 if ( BRep_Tool::Curve( *edge, f,l ).IsNull() )
895 edge = thePrism.myBottomEdges.erase( edge );
901 TopTools_ListIteratorOfListOfShape faceIt( edgeToFaces.FindFromKey( *edge ));
902 for ( ; faceIt.More(); faceIt.Next() )
904 const TopoDS_Face& face = TopoDS::Face( faceIt.Value() );
905 if ( !thePrism.myBottom.IsSame( face ))
907 Prism_3D::TQuadList quadList( 1, quadAlgo->CheckNbEdges( *mesh, face ));
908 if ( !quadList.back() )
909 return toSM( error(TCom("Side face #") << shapeID( face )
910 << " not meshable with quadrangles"));
911 bool isCompositeBase = ! setBottomEdge( *edge, quadList.back(), face );
912 if ( isCompositeBase )
914 // it's OK if all EDGEs of the bottom side belongs to the bottom FACE
915 StdMeshers_FaceSidePtr botSide = quadList.back()->side[ QUAD_BOTTOM_SIDE ];
916 for ( int iE = 0; iE < botSide->NbEdges(); ++iE )
917 if ( !myHelper->IsSubShape( botSide->Edge(iE), thePrism.myBottom ))
918 return toSM( error(TCom("Composite 'horizontal' edges are not supported")));
920 if ( faceMap.Add( face ))
921 thePrism.myWallQuads.push_back( quadList );
934 // -------------------------
935 // Find the rest wall FACEs
936 // -------------------------
938 // Compose a vector of indixes of right neighbour FACE for each wall FACE
939 // that is not so evident in case of several WIREs in the bottom FACE
940 thePrism.myRightQuadIndex.clear();
941 for ( size_t i = 0; i < thePrism.myWallQuads.size(); ++i )
942 thePrism.myRightQuadIndex.push_back( i+1 );
943 list< int >::iterator nbEinW = thePrism.myNbEdgesInWires.begin();
944 for ( int iLeft = 0; nbEinW != thePrism.myNbEdgesInWires.end(); ++nbEinW )
946 thePrism.myRightQuadIndex[ iLeft + *nbEinW - 1 ] = iLeft; // 1st EDGE index of a current WIRE
950 while ( totalNbFaces - faceMap.Extent() > 2 )
952 // find wall FACEs adjacent to each of wallQuads by the right side EDGE
955 nbKnownFaces = faceMap.Extent();
956 StdMeshers_FaceSidePtr rightSide, topSide; // sides of the quad
957 for ( size_t i = 0; i < thePrism.myWallQuads.size(); ++i )
959 rightSide = thePrism.myWallQuads[i].back()->side[ QUAD_RIGHT_SIDE ];
960 for ( int iE = 0; iE < rightSide->NbEdges(); ++iE ) // rightSide can be composite
962 const TopoDS_Edge & rightE = rightSide->Edge( iE );
963 TopTools_ListIteratorOfListOfShape face( edgeToFaces.FindFromKey( rightE ));
964 for ( ; face.More(); face.Next() )
965 if ( faceMap.Add( face.Value() ))
967 // a new wall FACE encountered, store it in thePrism.myWallQuads
968 const int iRight = thePrism.myRightQuadIndex[i];
969 topSide = thePrism.myWallQuads[ iRight ].back()->side[ QUAD_TOP_SIDE ];
970 const TopoDS_Edge& newBotE = topSide->Edge(0);
971 const TopoDS_Shape& newWallF = face.Value();
972 thePrism.myWallQuads[ iRight ].push_back( quadAlgo->CheckNbEdges( *mesh, newWallF ));
973 if ( !thePrism.myWallQuads[ iRight ].back() )
974 return toSM( error(TCom("Side face #") << shapeID( newWallF ) <<
975 " not meshable with quadrangles"));
976 if ( ! setBottomEdge( newBotE, thePrism.myWallQuads[ iRight ].back(), newWallF ))
977 return toSM( error(TCom("Composite 'horizontal' edges are not supported")));
981 } while ( nbKnownFaces != faceMap.Extent() );
983 // find wall FACEs adjacent to each of thePrism.myWallQuads by the top side EDGE
984 if ( totalNbFaces - faceMap.Extent() > 2 )
986 for ( size_t i = 0; i < thePrism.myWallQuads.size(); ++i )
988 StdMeshers_FaceSidePtr topSide = thePrism.myWallQuads[i].back()->side[ QUAD_TOP_SIDE ];
989 const TopoDS_Edge & topE = topSide->Edge( 0 );
990 if ( topSide->NbEdges() > 1 )
991 return toSM( error(COMPERR_BAD_SHAPE, TCom("Side face #") <<
992 shapeID( thePrism.myWallQuads[i].back()->face )
993 << " has a composite top edge"));
994 TopTools_ListIteratorOfListOfShape faceIt( edgeToFaces.FindFromKey( topE ));
995 for ( ; faceIt.More(); faceIt.Next() )
996 if ( faceMap.Add( faceIt.Value() ))
998 // a new wall FACE encountered, store it in wallQuads
999 thePrism.myWallQuads[ i ].push_back( quadAlgo->CheckNbEdges( *mesh, faceIt.Value() ));
1000 if ( !thePrism.myWallQuads[ i ].back() )
1001 return toSM( error(TCom("Side face #") << shapeID( faceIt.Value() ) <<
1002 " not meshable with quadrangles"));
1003 if ( ! setBottomEdge( topE, thePrism.myWallQuads[ i ].back(), faceIt.Value() ))
1004 return toSM( error(TCom("Composite 'horizontal' edges are not supported")));
1005 if ( totalNbFaces - faceMap.Extent() == 2 )
1007 i = thePrism.myWallQuads.size(); // to quit from the outer loop
1013 } // while ( totalNbFaces - faceMap.Extent() > 2 )
1015 // ------------------
1016 // Find the top FACE
1017 // ------------------
1019 if ( thePrism.myTop.IsNull() )
1021 // now only top and bottom FACEs are not in the faceMap
1022 faceMap.Add( thePrism.myBottom );
1023 for ( TopExp_Explorer f( thePrism.myShape3D, TopAbs_FACE );f.More(); f.Next() )
1024 if ( !faceMap.Contains( f.Current() )) {
1025 thePrism.myTop = TopoDS::Face( f.Current() );
1028 if ( thePrism.myTop.IsNull() )
1029 return toSM( error("Top face not found"));
1032 // Check that the top FACE shares all the top EDGEs
1033 for ( size_t i = 0; i < thePrism.myWallQuads.size(); ++i )
1035 StdMeshers_FaceSidePtr topSide = thePrism.myWallQuads[i].back()->side[ QUAD_TOP_SIDE ];
1036 const TopoDS_Edge & topE = topSide->Edge( 0 );
1037 if ( !myHelper->IsSubShape( topE, thePrism.myTop ))
1038 return toSM( error( TCom("Wrong source face (#") << shapeID( thePrism.myBottom )));
1044 //=======================================================================
1045 //function : compute
1046 //purpose : Compute mesh on a SOLID
1047 //=======================================================================
1049 bool StdMeshers_Prism_3D::compute(const Prism_3D::TPrismTopo& thePrism)
1051 myHelper->IsQuadraticSubMesh( thePrism.myShape3D );
1052 if ( _computeCanceled )
1053 return toSM( error( SMESH_ComputeError::New(COMPERR_CANCELED)));
1055 // Make all side FACEs of thePrism meshed with quads
1056 if ( !computeWalls( thePrism ))
1059 // Analyse mesh and geometry to find all block sub-shapes and submeshes
1060 if ( !myBlock.Init( myHelper, thePrism ))
1061 return toSM( error( myBlock.GetError()));
1063 SMESHDS_Mesh* meshDS = myHelper->GetMeshDS();
1065 int volumeID = meshDS->ShapeToIndex( thePrism.myShape3D );
1067 // Try to get gp_Trsf to get all nodes from bottom ones
1068 vector<gp_Trsf> trsf;
1069 gp_Trsf bottomToTopTrsf;
1070 if ( !myBlock.GetLayersTransformation( trsf, thePrism ))
1072 else if ( !trsf.empty() )
1073 bottomToTopTrsf = trsf.back();
1075 // To compute coordinates of a node inside a block, it is necessary to know
1076 // 1. normalized parameters of the node by which
1077 // 2. coordinates of node projections on all block sub-shapes are computed
1079 // So we fill projections on vertices at once as they are same for all nodes
1080 myShapeXYZ.resize( myBlock.NbSubShapes() );
1081 for ( int iV = SMESH_Block::ID_FirstV; iV < SMESH_Block::ID_FirstE; ++iV ) {
1082 myBlock.VertexPoint( iV, myShapeXYZ[ iV ]);
1083 SHOWYXZ("V point " <<iV << " ", myShapeXYZ[ iV ]);
1086 // Projections on the top and bottom faces are taken from nodes existing
1087 // on these faces; find correspondence between bottom and top nodes
1088 myBotToColumnMap.clear();
1089 if ( !assocOrProjBottom2Top( bottomToTopTrsf, thePrism ) ) // it also fills myBotToColumnMap
1093 // Create nodes inside the block
1095 // try to use transformation (issue 0020680)
1096 if ( !trsf.empty() )
1098 // loop on nodes inside the bottom face
1099 TNode2ColumnMap::iterator bot_column = myBotToColumnMap.begin();
1100 for ( ; bot_column != myBotToColumnMap.end(); ++bot_column )
1102 const Prism_3D::TNode& tBotNode = bot_column->first; // bottom TNode
1103 if ( tBotNode.GetPositionType() != SMDS_TOP_FACE )
1104 continue; // node is not inside face
1106 // column nodes; middle part of the column are zero pointers
1107 TNodeColumn& column = bot_column->second;
1108 TNodeColumn::iterator columnNodes = column.begin();
1109 for ( int z = 0; columnNodes != column.end(); ++columnNodes, ++z)
1111 const SMDS_MeshNode* & node = *columnNodes;
1112 if ( node ) continue; // skip bottom or top node
1114 gp_XYZ coords = tBotNode.GetCoords();
1115 trsf[z-1].Transforms( coords );
1116 node = meshDS->AddNode( coords.X(), coords.Y(), coords.Z() );
1117 meshDS->SetNodeInVolume( node, volumeID );
1119 } // loop on bottom nodes
1121 else // use block approach
1123 // loop on nodes inside the bottom face
1124 Prism_3D::TNode prevBNode;
1125 TNode2ColumnMap::iterator bot_column = myBotToColumnMap.begin();
1126 for ( ; bot_column != myBotToColumnMap.end(); ++bot_column )
1128 const Prism_3D::TNode& tBotNode = bot_column->first; // bottom TNode
1129 if ( tBotNode.GetPositionType() != SMDS_TOP_FACE )
1130 continue; // node is not inside the FACE
1132 // column nodes; middle part of the column are zero pointers
1133 TNodeColumn& column = bot_column->second;
1135 gp_XYZ botParams, topParams;
1136 if ( !tBotNode.HasParams() )
1138 // compute bottom node parameters
1139 gp_XYZ paramHint(-1,-1,-1);
1140 if ( prevBNode.IsNeighbor( tBotNode ))
1141 paramHint = prevBNode.GetParams();
1142 if ( !myBlock.ComputeParameters( tBotNode.GetCoords(), tBotNode.ChangeParams(),
1143 ID_BOT_FACE, paramHint ))
1144 return toSM( error(TCom("Can't compute normalized parameters for node ")
1145 << tBotNode.myNode->GetID() << " on the face #"
1146 << myBlock.SubMesh( ID_BOT_FACE )->GetId() ));
1147 prevBNode = tBotNode;
1149 botParams = topParams = tBotNode.GetParams();
1150 topParams.SetZ( 1 );
1152 // compute top node parameters
1153 if ( column.size() > 2 ) {
1154 gp_Pnt topCoords = gpXYZ( column.back() );
1155 if ( !myBlock.ComputeParameters( topCoords, topParams, ID_TOP_FACE, topParams ))
1156 return toSM( error(TCom("Can't compute normalized parameters ")
1157 << "for node " << column.back()->GetID()
1158 << " on the face #"<< column.back()->getshapeId() ));
1161 else // top nodes are created by projection using parameters
1163 botParams = topParams = tBotNode.GetParams();
1164 topParams.SetZ( 1 );
1167 myShapeXYZ[ ID_BOT_FACE ] = tBotNode.GetCoords();
1168 myShapeXYZ[ ID_TOP_FACE ] = gpXYZ( column.back() );
1171 TNodeColumn::iterator columnNodes = column.begin();
1172 for ( int z = 0; columnNodes != column.end(); ++columnNodes, ++z)
1174 const SMDS_MeshNode* & node = *columnNodes;
1175 if ( node ) continue; // skip bottom or top node
1177 // params of a node to create
1178 double rz = (double) z / (double) ( column.size() - 1 );
1179 gp_XYZ params = botParams * ( 1 - rz ) + topParams * rz;
1181 // set coords on all faces and nodes
1182 const int nbSideFaces = 4;
1183 int sideFaceIDs[nbSideFaces] = { SMESH_Block::ID_Fx0z,
1184 SMESH_Block::ID_Fx1z,
1185 SMESH_Block::ID_F0yz,
1186 SMESH_Block::ID_F1yz };
1187 for ( int iF = 0; iF < nbSideFaces; ++iF )
1188 if ( !setFaceAndEdgesXYZ( sideFaceIDs[ iF ], params, z ))
1191 // compute coords for a new node
1193 if ( !SMESH_Block::ShellPoint( params, myShapeXYZ, coords ))
1194 return toSM( error("Can't compute coordinates by normalized parameters"));
1196 // if ( !meshDS->MeshElements( volumeID ) ||
1197 // meshDS->MeshElements( volumeID )->NbNodes() == 0 )
1198 // pointsToPython(myShapeXYZ);
1199 SHOWYXZ("TOPFacePoint ",myShapeXYZ[ ID_TOP_FACE]);
1200 SHOWYXZ("BOT Node "<< tBotNode.myNode->GetID(),gpXYZ(tBotNode.myNode));
1201 SHOWYXZ("ShellPoint ",coords);
1204 node = meshDS->AddNode( coords.X(), coords.Y(), coords.Z() );
1205 meshDS->SetNodeInVolume( node, volumeID );
1207 if ( _computeCanceled )
1210 } // loop on bottom nodes
1215 SMESHDS_SubMesh* smDS = myBlock.SubMeshDS( ID_BOT_FACE );
1216 if ( !smDS ) return toSM( error(COMPERR_BAD_INPUT_MESH, "Null submesh"));
1218 // loop on bottom mesh faces
1219 SMDS_ElemIteratorPtr faceIt = smDS->GetElements();
1220 while ( faceIt->more() )
1222 const SMDS_MeshElement* face = faceIt->next();
1223 if ( !face || face->GetType() != SMDSAbs_Face )
1226 // find node columns for each node
1227 int nbNodes = face->NbCornerNodes();
1228 vector< const TNodeColumn* > columns( nbNodes );
1229 for ( int i = 0; i < nbNodes; ++i )
1231 const SMDS_MeshNode* n = face->GetNode( i );
1232 if ( n->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE ) {
1233 TNode2ColumnMap::iterator bot_column = myBotToColumnMap.find( n );
1234 if ( bot_column == myBotToColumnMap.end() )
1235 return toSM( error(TCom("No nodes found above node ") << n->GetID() ));
1236 columns[ i ] = & bot_column->second;
1239 columns[ i ] = myBlock.GetNodeColumn( n );
1240 if ( !columns[ i ] )
1241 return toSM( error(TCom("No side nodes found above node ") << n->GetID() ));
1245 AddPrisms( columns, myHelper );
1247 } // loop on bottom mesh faces
1250 myBotToColumnMap.clear();
1256 //=======================================================================
1257 //function : computeWalls
1258 //purpose : Compute 2D mesh on walls FACEs of a prism
1259 //=======================================================================
1261 bool StdMeshers_Prism_3D::computeWalls(const Prism_3D::TPrismTopo& thePrism)
1263 SMESH_Mesh* mesh = myHelper->GetMesh();
1264 SMESHDS_Mesh* meshDS = myHelper->GetMeshDS();
1265 DBGOUT( endl << "COMPUTE Prism " << meshDS->ShapeToIndex( thePrism.myShape3D ));
1267 TProjction1dAlgo* projector1D = TProjction1dAlgo::instance( this );
1268 StdMeshers_Quadrangle_2D* quadAlgo = TQuadrangleAlgo::instance( this, myHelper );
1270 // SMESH_HypoFilter hyp1dFilter( SMESH_HypoFilter::IsAlgo(),/*not=*/true);
1271 // hyp1dFilter.And( SMESH_HypoFilter::HasDim( 1 ));
1272 // hyp1dFilter.And( SMESH_HypoFilter::IsMoreLocalThan( thePrism.myShape3D, *mesh ));
1274 // Discretize equally 'vertical' EDGEs
1275 // -----------------------------------
1276 // find source FACE sides for projection: either already computed ones or
1277 // the 'most composite' ones
1278 const size_t nbWalls = thePrism.myWallQuads.size();
1279 vector< int > wgt( nbWalls, 0 ); // "weight" of a wall
1280 for ( size_t iW = 0; iW != nbWalls; ++iW )
1282 Prism_3D::TQuadList::const_iterator quad = thePrism.myWallQuads[iW].begin();
1283 for ( ; quad != thePrism.myWallQuads[iW].end(); ++quad )
1285 StdMeshers_FaceSidePtr lftSide = (*quad)->side[ QUAD_LEFT_SIDE ];
1286 for ( int i = 0; i < lftSide->NbEdges(); ++i )
1289 const TopoDS_Edge& E = lftSide->Edge(i);
1290 if ( mesh->GetSubMesh( E )->IsMeshComputed() )
1293 wgt[ myHelper->WrapIndex( iW+1, nbWalls)] += 10;
1294 wgt[ myHelper->WrapIndex( iW-1, nbWalls)] += 10;
1296 // else if ( mesh->GetHypothesis( E, hyp1dFilter, true )) // local hypothesis!
1300 // in quadratic mesh, pass ignoreMediumNodes to quad sides
1301 if ( myHelper->GetIsQuadratic() )
1303 quad = thePrism.myWallQuads[iW].begin();
1304 for ( ; quad != thePrism.myWallQuads[iW].end(); ++quad )
1305 for ( int i = 0; i < NB_QUAD_SIDES; ++i )
1306 (*quad)->side[ i ].grid->SetIgnoreMediumNodes( true );
1309 multimap< int, int > wgt2quad;
1310 for ( size_t iW = 0; iW != nbWalls; ++iW )
1311 wgt2quad.insert( make_pair( wgt[ iW ], iW ));
1313 // Project 'vertical' EDGEs, from left to right
1314 multimap< int, int >::reverse_iterator w2q = wgt2quad.rbegin();
1315 for ( ; w2q != wgt2quad.rend(); ++w2q )
1317 const int iW = w2q->second;
1318 const Prism_3D::TQuadList& quads = thePrism.myWallQuads[ iW ];
1319 Prism_3D::TQuadList::const_iterator quad = quads.begin();
1320 for ( ; quad != quads.end(); ++quad )
1322 StdMeshers_FaceSidePtr rgtSide = (*quad)->side[ QUAD_RIGHT_SIDE ]; // tgt
1323 StdMeshers_FaceSidePtr lftSide = (*quad)->side[ QUAD_LEFT_SIDE ]; // src
1324 bool swapLeftRight = ( lftSide->NbSegments( /*update=*/true ) == 0 &&
1325 rgtSide->NbSegments( /*update=*/true ) > 0 );
1326 if ( swapLeftRight )
1327 std::swap( lftSide, rgtSide );
1329 // assure that all the source (left) EDGEs are meshed
1330 int nbSrcSegments = 0;
1331 for ( int i = 0; i < lftSide->NbEdges(); ++i )
1333 const TopoDS_Edge& srcE = lftSide->Edge(i);
1334 SMESH_subMesh* srcSM = mesh->GetSubMesh( srcE );
1335 if ( !srcSM->IsMeshComputed() ) {
1336 DBGOUT( "COMPUTE V edge " << srcSM->GetId() );
1337 TopoDS_Edge prpgSrcE = findPropagationSource( srcE );
1338 if ( !prpgSrcE.IsNull() ) {
1339 srcSM->ComputeSubMeshStateEngine( SMESH_subMesh::COMPUTE );
1340 projector1D->myHyp.SetSourceEdge( prpgSrcE );
1341 projector1D->Compute( *mesh, srcE );
1342 srcSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
1345 srcSM->ComputeSubMeshStateEngine( SMESH_subMesh::COMPUTE );
1346 srcSM->ComputeStateEngine ( SMESH_subMesh::COMPUTE );
1348 if ( !srcSM->IsMeshComputed() )
1349 return toSM( error( "Can't compute 1D mesh" ));
1351 nbSrcSegments += srcSM->GetSubMeshDS()->NbElements();
1353 // check target EDGEs
1354 int nbTgtMeshed = 0, nbTgtSegments = 0;
1355 vector< bool > isTgtEdgeComputed( rgtSide->NbEdges() );
1356 for ( int i = 0; i < rgtSide->NbEdges(); ++i )
1358 const TopoDS_Edge& tgtE = rgtSide->Edge(i);
1359 SMESH_subMesh* tgtSM = mesh->GetSubMesh( tgtE );
1360 if ( !( isTgtEdgeComputed[ i ] = tgtSM->IsMeshComputed() )) {
1361 tgtSM->ComputeSubMeshStateEngine( SMESH_subMesh::COMPUTE );
1362 tgtSM->ComputeStateEngine ( SMESH_subMesh::COMPUTE );
1364 if ( tgtSM->IsMeshComputed() ) {
1366 nbTgtSegments += tgtSM->GetSubMeshDS()->NbElements();
1369 if ( rgtSide->NbEdges() == nbTgtMeshed ) // all tgt EDGEs meshed
1371 if ( nbTgtSegments != nbSrcSegments )
1373 bool badMeshRemoved = false;
1374 // remove just computed segments
1375 for ( int i = 0; i < rgtSide->NbEdges(); ++i )
1376 if ( !isTgtEdgeComputed[ i ])
1378 const TopoDS_Edge& tgtE = rgtSide->Edge(i);
1379 SMESH_subMesh* tgtSM = mesh->GetSubMesh( tgtE );
1380 tgtSM->ComputeStateEngine( SMESH_subMesh::CLEAN );
1381 badMeshRemoved = true;
1384 if ( !badMeshRemoved )
1386 for ( int i = 0; i < lftSide->NbEdges(); ++i )
1387 addBadInputElements( meshDS->MeshElements( lftSide->Edge( i )));
1388 for ( int i = 0; i < rgtSide->NbEdges(); ++i )
1389 addBadInputElements( meshDS->MeshElements( rgtSide->Edge( i )));
1390 return toSM( error( TCom("Different nb of segment on logically vertical edges #")
1391 << shapeID( lftSide->Edge(0) ) << " and #"
1392 << shapeID( rgtSide->Edge(0) ) << ": "
1393 << nbSrcSegments << " != " << nbTgtSegments ));
1396 else // if ( nbTgtSegments == nbSrcSegments )
1401 // Compute 'vertical projection'
1402 if ( nbTgtMeshed == 0 )
1404 // compute nodes on target VERTEXes
1405 const UVPtStructVec& srcNodeStr = lftSide->GetUVPtStruct();
1406 if ( srcNodeStr.size() == 0 )
1407 return toSM( error( TCom("Invalid node positions on edge #") <<
1408 shapeID( lftSide->Edge(0) )));
1409 vector< SMDS_MeshNode* > newNodes( srcNodeStr.size() );
1410 for ( int is2ndV = 0; is2ndV < 2; ++is2ndV )
1412 const TopoDS_Edge& E = rgtSide->Edge( is2ndV ? rgtSide->NbEdges()-1 : 0 );
1413 TopoDS_Vertex v = myHelper->IthVertex( is2ndV, E );
1414 mesh->GetSubMesh( v )->ComputeStateEngine( SMESH_subMesh::COMPUTE );
1415 const SMDS_MeshNode* n = SMESH_Algo::VertexNode( v, meshDS );
1416 newNodes[ is2ndV ? 0 : newNodes.size()-1 ] = (SMDS_MeshNode*) n;
1419 // compute nodes on target EDGEs
1420 DBGOUT( "COMPUTE V edge (proj) " << shapeID( lftSide->Edge(0)));
1421 rgtSide->Reverse(); // direct it same as the lftSide
1422 myHelper->SetElementsOnShape( false ); // myHelper holds the prism shape
1423 TopoDS_Edge tgtEdge;
1424 for ( size_t iN = 1; iN < srcNodeStr.size()-1; ++iN ) // add nodes
1426 gp_Pnt p = rgtSide->Value3d ( srcNodeStr[ iN ].normParam );
1427 double u = rgtSide->Parameter( srcNodeStr[ iN ].normParam, tgtEdge );
1428 newNodes[ iN ] = meshDS->AddNode( p.X(), p.Y(), p.Z() );
1429 meshDS->SetNodeOnEdge( newNodes[ iN ], tgtEdge, u );
1431 for ( size_t iN = 1; iN < srcNodeStr.size(); ++iN ) // add segments
1433 // find an EDGE to set a new segment
1434 std::pair<int, TopAbs_ShapeEnum> id2type =
1435 myHelper->GetMediumPos( newNodes[ iN-1 ], newNodes[ iN ] );
1436 if ( id2type.second != TopAbs_EDGE )
1438 // new nodes are on different EDGEs; put one of them on VERTEX
1439 const int edgeIndex = rgtSide->EdgeIndex( srcNodeStr[ iN-1 ].normParam );
1440 const double vertexParam = rgtSide->LastParameter( edgeIndex );
1441 TopoDS_Vertex vertex = rgtSide->LastVertex( edgeIndex );
1442 const SMDS_MeshNode* vn = SMESH_Algo::VertexNode( vertex, meshDS );
1443 const gp_Pnt p = BRep_Tool::Pnt( vertex );
1444 const int isPrev = ( Abs( srcNodeStr[ iN-1 ].normParam - vertexParam ) <
1445 Abs( srcNodeStr[ iN ].normParam - vertexParam ));
1446 meshDS->UnSetNodeOnShape( newNodes[ iN-isPrev ] );
1447 meshDS->SetNodeOnVertex ( newNodes[ iN-isPrev ], vertex );
1448 meshDS->MoveNode ( newNodes[ iN-isPrev ], p.X(), p.Y(), p.Z() );
1449 id2type.first = newNodes[ iN-(1-isPrev) ]->getshapeId();
1452 SMESH_MeshEditor::TListOfListOfNodes lln( 1, list< const SMDS_MeshNode* >() );
1453 lln.back().push_back ( vn );
1454 lln.back().push_front( newNodes[ iN-isPrev ] ); // to keep
1455 SMESH_MeshEditor( mesh ).MergeNodes( lln );
1458 SMDS_MeshElement* newEdge = myHelper->AddEdge( newNodes[ iN-1 ], newNodes[ iN ] );
1459 meshDS->SetMeshElementOnShape( newEdge, id2type.first );
1461 myHelper->SetElementsOnShape( true );
1462 for ( int i = 0; i < rgtSide->NbEdges(); ++i ) // update state of sub-meshes
1464 const TopoDS_Edge& E = rgtSide->Edge( i );
1465 SMESH_subMesh* tgtSM = mesh->GetSubMesh( E );
1466 tgtSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
1469 // to continue projection from the just computed side as a source
1470 if ( !swapLeftRight && rgtSide->NbEdges() > 1 && w2q->second == iW )
1472 std::pair<int,int> wgt2quadKeyVal( w2q->first + 1, thePrism.myRightQuadIndex[ iW ]);
1473 wgt2quad.insert( wgt2quadKeyVal ); // it will be skipped by ++w2q
1474 wgt2quad.insert( wgt2quadKeyVal );
1475 w2q = wgt2quad.rbegin();
1480 // HOPE assigned hypotheses are OK, so that equal nb of segments will be generated
1481 //return toSM( error("Partial projection not implemented"));
1483 } // loop on quads of a composite wall side
1484 } // loop on the ordered wall sides
1488 for ( size_t iW = 0; iW != thePrism.myWallQuads.size(); ++iW )
1490 Prism_3D::TQuadList::const_iterator quad = thePrism.myWallQuads[iW].begin();
1491 for ( ; quad != thePrism.myWallQuads[iW].end(); ++quad )
1493 const TopoDS_Face& face = (*quad)->face;
1494 SMESH_subMesh* fSM = mesh->GetSubMesh( face );
1495 if ( ! fSM->IsMeshComputed() )
1497 // Top EDGEs must be projections from the bottom ones
1498 // to compute stuctured quad mesh on wall FACEs
1499 // ---------------------------------------------------
1500 const TopoDS_Edge& botE = (*quad)->side[ QUAD_BOTTOM_SIDE ].grid->Edge(0);
1501 const TopoDS_Edge& topE = (*quad)->side[ QUAD_TOP_SIDE ].grid->Edge(0);
1502 SMESH_subMesh* botSM = mesh->GetSubMesh( botE );
1503 SMESH_subMesh* topSM = mesh->GetSubMesh( topE );
1504 SMESH_subMesh* srcSM = botSM;
1505 SMESH_subMesh* tgtSM = topSM;
1506 if ( !srcSM->IsMeshComputed() && tgtSM->IsMeshComputed() )
1507 std::swap( srcSM, tgtSM );
1509 if ( !srcSM->IsMeshComputed() )
1511 DBGOUT( "COMPUTE H edge " << srcSM->GetId());
1512 srcSM->ComputeSubMeshStateEngine( SMESH_subMesh::COMPUTE ); // nodes on VERTEXes
1513 srcSM->ComputeStateEngine( SMESH_subMesh::COMPUTE ); // segments on the EDGE
1515 srcSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
1517 if ( tgtSM->IsMeshComputed() &&
1518 tgtSM->GetSubMeshDS()->NbNodes() != srcSM->GetSubMeshDS()->NbNodes() )
1520 // the top EDGE is computed differently than the bottom one,
1521 // try to clear a wrong mesh
1522 bool isAdjFaceMeshed = false;
1523 PShapeIteratorPtr fIt = myHelper->GetAncestors( tgtSM->GetSubShape(),
1524 *mesh, TopAbs_FACE );
1525 while ( const TopoDS_Shape* f = fIt->next() )
1526 if (( isAdjFaceMeshed = mesh->GetSubMesh( *f )->IsMeshComputed() ))
1528 if ( isAdjFaceMeshed )
1529 return toSM( error( TCom("Different nb of segment on logically horizontal edges #")
1530 << shapeID( botE ) << " and #"
1531 << shapeID( topE ) << ": "
1532 << tgtSM->GetSubMeshDS()->NbElements() << " != "
1533 << srcSM->GetSubMeshDS()->NbElements() ));
1534 tgtSM->ComputeStateEngine( SMESH_subMesh::CLEAN );
1536 if ( !tgtSM->IsMeshComputed() )
1538 // compute nodes on VERTEXes
1539 SMESH_subMeshIteratorPtr smIt = tgtSM->getDependsOnIterator(/*includeSelf=*/false);
1540 while ( smIt->more() )
1541 smIt->next()->ComputeStateEngine( SMESH_subMesh::COMPUTE );
1543 DBGOUT( "COMPUTE H edge (proj) " << tgtSM->GetId());
1544 projector1D->myHyp.SetSourceEdge( TopoDS::Edge( srcSM->GetSubShape() ));
1545 projector1D->InitComputeError();
1546 bool ok = projector1D->Compute( *mesh, tgtSM->GetSubShape() );
1549 SMESH_ComputeErrorPtr err = projector1D->GetComputeError();
1550 if ( err->IsOK() ) err->myName = COMPERR_ALGO_FAILED;
1551 tgtSM->GetComputeError() = err;
1555 tgtSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
1558 // Compute quad mesh on wall FACEs
1559 // -------------------------------
1561 // make all EDGES meshed
1562 fSM->ComputeSubMeshStateEngine( SMESH_subMesh::COMPUTE );
1563 if ( !fSM->SubMeshesComputed() )
1564 return toSM( error( COMPERR_BAD_INPUT_MESH,
1565 "Not all edges have valid algorithm and hypothesis"));
1567 quadAlgo->InitComputeError();
1568 DBGOUT( "COMPUTE Quad face " << fSM->GetId());
1569 bool ok = quadAlgo->Compute( *mesh, face );
1570 fSM->GetComputeError() = quadAlgo->GetComputeError();
1573 fSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
1575 if ( myHelper->GetIsQuadratic() )
1577 // fill myHelper with medium nodes built by quadAlgo
1578 SMDS_ElemIteratorPtr fIt = fSM->GetSubMeshDS()->GetElements();
1579 while ( fIt->more() )
1580 myHelper->AddTLinks( dynamic_cast<const SMDS_MeshFace*>( fIt->next() ));
1588 //=======================================================================
1590 * \brief Returns a source EDGE of propagation to a given EDGE
1592 //=======================================================================
1594 TopoDS_Edge StdMeshers_Prism_3D::findPropagationSource( const TopoDS_Edge& E )
1596 if ( myPropagChains )
1597 for ( size_t i = 0; !myPropagChains[i].IsEmpty(); ++i )
1598 if ( myPropagChains[i].Contains( E ))
1599 return TopoDS::Edge( myPropagChains[i].FindKey( 1 ));
1601 return TopoDS_Edge();
1604 //=======================================================================
1605 //function : Evaluate
1607 //=======================================================================
1609 bool StdMeshers_Prism_3D::Evaluate(SMESH_Mesh& theMesh,
1610 const TopoDS_Shape& theShape,
1611 MapShapeNbElems& aResMap)
1613 if ( theShape.ShapeType() == TopAbs_COMPOUND )
1616 for ( TopoDS_Iterator it( theShape ); it.More(); it.Next() )
1617 ok &= Evaluate( theMesh, it.Value(), aResMap );
1620 SMESH_MesherHelper helper( theMesh );
1622 myHelper->SetSubShape( theShape );
1624 // find face contains only triangles
1625 vector < SMESH_subMesh * >meshFaces;
1626 TopTools_SequenceOfShape aFaces;
1627 int NumBase = 0, i = 0, NbQFs = 0;
1628 for (TopExp_Explorer exp(theShape, TopAbs_FACE); exp.More(); exp.Next()) {
1630 aFaces.Append(exp.Current());
1631 SMESH_subMesh *aSubMesh = theMesh.GetSubMesh(exp.Current());
1632 meshFaces.push_back(aSubMesh);
1633 MapShapeNbElemsItr anIt = aResMap.find(meshFaces[i-1]);
1634 if( anIt==aResMap.end() )
1635 return toSM( error( "Submesh can not be evaluated"));
1637 std::vector<int> aVec = (*anIt).second;
1638 int nbtri = Max(aVec[SMDSEntity_Triangle],aVec[SMDSEntity_Quad_Triangle]);
1639 int nbqua = Max(aVec[SMDSEntity_Quadrangle],aVec[SMDSEntity_Quad_Quadrangle]);
1640 if( nbtri==0 && nbqua>0 ) {
1649 std::vector<int> aResVec(SMDSEntity_Last);
1650 for(int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aResVec[i] = 0;
1651 SMESH_subMesh * sm = theMesh.GetSubMesh(theShape);
1652 aResMap.insert(std::make_pair(sm,aResVec));
1653 return toSM( error( "Submesh can not be evaluated" ));
1656 if(NumBase==0) NumBase = 1; // only quads => set 1 faces as base
1658 // find number of 1d elems for base face
1660 TopTools_MapOfShape Edges1;
1661 for (TopExp_Explorer exp(aFaces.Value(NumBase), TopAbs_EDGE); exp.More(); exp.Next()) {
1662 Edges1.Add(exp.Current());
1663 SMESH_subMesh *sm = theMesh.GetSubMesh(exp.Current());
1665 MapShapeNbElemsItr anIt = aResMap.find(sm);
1666 if( anIt == aResMap.end() ) continue;
1667 std::vector<int> aVec = (*anIt).second;
1668 nb1d += Max(aVec[SMDSEntity_Edge],aVec[SMDSEntity_Quad_Edge]);
1671 // find face opposite to base face
1673 for(i=1; i<=6; i++) {
1674 if(i==NumBase) continue;
1675 bool IsOpposite = true;
1676 for(TopExp_Explorer exp(aFaces.Value(i), TopAbs_EDGE); exp.More(); exp.Next()) {
1677 if( Edges1.Contains(exp.Current()) ) {
1687 // find number of 2d elems on side faces
1689 for(i=1; i<=6; i++) {
1690 if( i==OppNum || i==NumBase ) continue;
1691 MapShapeNbElemsItr anIt = aResMap.find( meshFaces[i-1] );
1692 if( anIt == aResMap.end() ) continue;
1693 std::vector<int> aVec = (*anIt).second;
1694 nb2d += Max(aVec[SMDSEntity_Quadrangle],aVec[SMDSEntity_Quad_Quadrangle]);
1697 MapShapeNbElemsItr anIt = aResMap.find( meshFaces[NumBase-1] );
1698 std::vector<int> aVec = (*anIt).second;
1699 bool IsQuadratic = (aVec[SMDSEntity_Quad_Triangle]>aVec[SMDSEntity_Triangle]) ||
1700 (aVec[SMDSEntity_Quad_Quadrangle]>aVec[SMDSEntity_Quadrangle]);
1701 int nb2d_face0_3 = Max(aVec[SMDSEntity_Triangle],aVec[SMDSEntity_Quad_Triangle]);
1702 int nb2d_face0_4 = Max(aVec[SMDSEntity_Quadrangle],aVec[SMDSEntity_Quad_Quadrangle]);
1703 int nb0d_face0 = aVec[SMDSEntity_Node];
1704 int nb1d_face0_int = ( nb2d_face0_3*3 + nb2d_face0_4*4 - nb1d ) / 2;
1706 std::vector<int> aResVec(SMDSEntity_Last);
1707 for(int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aResVec[i] = 0;
1709 aResVec[SMDSEntity_Quad_Penta] = nb2d_face0_3 * ( nb2d/nb1d );
1710 aResVec[SMDSEntity_Quad_Hexa] = nb2d_face0_4 * ( nb2d/nb1d );
1711 aResVec[SMDSEntity_Node] = nb0d_face0 * ( 2*nb2d/nb1d - 1 ) - nb1d_face0_int * nb2d/nb1d;
1714 aResVec[SMDSEntity_Node] = nb0d_face0 * ( nb2d/nb1d - 1 );
1715 aResVec[SMDSEntity_Penta] = nb2d_face0_3 * ( nb2d/nb1d );
1716 aResVec[SMDSEntity_Hexa] = nb2d_face0_4 * ( nb2d/nb1d );
1718 SMESH_subMesh * sm = theMesh.GetSubMesh(theShape);
1719 aResMap.insert(std::make_pair(sm,aResVec));
1724 //================================================================================
1726 * \brief Create prisms
1727 * \param columns - columns of nodes generated from nodes of a mesh face
1728 * \param helper - helper initialized by mesh and shape to add prisms to
1730 //================================================================================
1732 void StdMeshers_Prism_3D::AddPrisms( vector<const TNodeColumn*> & columns,
1733 SMESH_MesherHelper* helper)
1735 int nbNodes = columns.size();
1736 int nbZ = columns[0]->size();
1737 if ( nbZ < 2 ) return;
1739 // find out orientation
1740 bool isForward = true;
1741 SMDS_VolumeTool vTool;
1743 switch ( nbNodes ) {
1745 SMDS_VolumeOfNodes tmpPenta ( (*columns[0])[z-1], // bottom
1748 (*columns[0])[z], // top
1751 vTool.Set( &tmpPenta );
1752 isForward = vTool.IsForward();
1756 SMDS_VolumeOfNodes tmpHex( (*columns[0])[z-1], (*columns[1])[z-1], // bottom
1757 (*columns[2])[z-1], (*columns[3])[z-1],
1758 (*columns[0])[z], (*columns[1])[z], // top
1759 (*columns[2])[z], (*columns[3])[z] );
1760 vTool.Set( &tmpHex );
1761 isForward = vTool.IsForward();
1765 const int di = (nbNodes+1) / 3;
1766 SMDS_VolumeOfNodes tmpVol ( (*columns[0] )[z-1],
1767 (*columns[di] )[z-1],
1768 (*columns[2*di])[z-1],
1771 (*columns[2*di])[z] );
1772 vTool.Set( &tmpVol );
1773 isForward = vTool.IsForward();
1776 // vertical loop on columns
1778 helper->SetElementsOnShape( true );
1780 switch ( nbNodes ) {
1782 case 3: { // ---------- pentahedra
1783 const int i1 = isForward ? 1 : 2;
1784 const int i2 = isForward ? 2 : 1;
1785 for ( z = 1; z < nbZ; ++z )
1786 helper->AddVolume( (*columns[0 ])[z-1], // bottom
1787 (*columns[i1])[z-1],
1788 (*columns[i2])[z-1],
1789 (*columns[0 ])[z], // top
1791 (*columns[i2])[z] );
1794 case 4: { // ---------- hexahedra
1795 const int i1 = isForward ? 1 : 3;
1796 const int i3 = isForward ? 3 : 1;
1797 for ( z = 1; z < nbZ; ++z )
1798 helper->AddVolume( (*columns[0])[z-1], (*columns[i1])[z-1], // bottom
1799 (*columns[2])[z-1], (*columns[i3])[z-1],
1800 (*columns[0])[z], (*columns[i1])[z], // top
1801 (*columns[2])[z], (*columns[i3])[z] );
1804 case 6: { // ---------- octahedra
1805 const int iBase1 = isForward ? -1 : 0;
1806 const int iBase2 = isForward ? 0 :-1;
1807 for ( z = 1; z < nbZ; ++z )
1808 helper->AddVolume( (*columns[0])[z+iBase1], (*columns[1])[z+iBase1], // bottom or top
1809 (*columns[2])[z+iBase1], (*columns[3])[z+iBase1],
1810 (*columns[4])[z+iBase1], (*columns[5])[z+iBase1],
1811 (*columns[0])[z+iBase2], (*columns[1])[z+iBase2], // top or bottom
1812 (*columns[2])[z+iBase2], (*columns[3])[z+iBase2],
1813 (*columns[4])[z+iBase2], (*columns[5])[z+iBase2] );
1816 default: // ---------- polyhedra
1817 vector<int> quantities( 2 + nbNodes, 4 );
1818 quantities[0] = quantities[1] = nbNodes;
1819 columns.resize( nbNodes + 1 );
1820 columns[ nbNodes ] = columns[ 0 ];
1821 const int i1 = isForward ? 1 : 3;
1822 const int i3 = isForward ? 3 : 1;
1823 const int iBase1 = isForward ? -1 : 0;
1824 const int iBase2 = isForward ? 0 :-1;
1825 vector<const SMDS_MeshNode*> nodes( 2*nbNodes + 4*nbNodes);
1826 for ( z = 1; z < nbZ; ++z )
1828 for ( int i = 0; i < nbNodes; ++i ) {
1829 nodes[ i ] = (*columns[ i ])[z+iBase1]; // bottom or top
1830 nodes[ 2*nbNodes-i-1 ] = (*columns[ i ])[z+iBase2]; // top or bottom
1832 int di = 2*nbNodes + 4*i;
1833 nodes[ di+0 ] = (*columns[i ])[z ];
1834 nodes[ di+i1] = (*columns[i+1])[z ];
1835 nodes[ di+2 ] = (*columns[i+1])[z-1];
1836 nodes[ di+i3] = (*columns[i ])[z-1];
1838 helper->AddPolyhedralVolume( nodes, quantities );
1841 } // switch ( nbNodes )
1844 //================================================================================
1846 * \brief Find correspondence between bottom and top nodes
1847 * If elements on the bottom and top faces are topologically different,
1848 * and projection is possible and allowed, perform the projection
1849 * \retval bool - is a success or not
1851 //================================================================================
1853 bool StdMeshers_Prism_3D::assocOrProjBottom2Top( const gp_Trsf & bottomToTopTrsf,
1854 const Prism_3D::TPrismTopo& thePrism)
1856 SMESH_subMesh * botSM = myBlock.SubMesh( ID_BOT_FACE );
1857 SMESH_subMesh * topSM = myBlock.SubMesh( ID_TOP_FACE );
1859 SMESHDS_SubMesh * botSMDS = botSM->GetSubMeshDS();
1860 SMESHDS_SubMesh * topSMDS = topSM->GetSubMeshDS();
1862 if ( !botSMDS || botSMDS->NbElements() == 0 )
1864 _gen->Compute( *myHelper->GetMesh(), botSM->GetSubShape(), /*aShapeOnly=*/true );
1865 botSMDS = botSM->GetSubMeshDS();
1866 if ( !botSMDS || botSMDS->NbElements() == 0 )
1867 return toSM( error(TCom("No elements on face #") << botSM->GetId() ));
1870 bool needProject = !topSM->IsMeshComputed();
1871 if ( !needProject &&
1872 (botSMDS->NbElements() != topSMDS->NbElements() ||
1873 botSMDS->NbNodes() != topSMDS->NbNodes()))
1875 MESSAGE("nb elem bot " << botSMDS->NbElements() <<
1876 " top " << ( topSMDS ? topSMDS->NbElements() : 0 ));
1877 MESSAGE("nb node bot " << botSMDS->NbNodes() <<
1878 " top " << ( topSMDS ? topSMDS->NbNodes() : 0 ));
1879 return toSM( error(TCom("Mesh on faces #") << botSM->GetId()
1880 <<" and #"<< topSM->GetId() << " seems different" ));
1883 if ( 0/*needProject && !myProjectTriangles*/ )
1884 return toSM( error(TCom("Mesh on faces #") << botSM->GetId()
1885 <<" and #"<< topSM->GetId() << " seems different" ));
1886 ///RETURN_BAD_RESULT("Need to project but not allowed");
1890 return projectBottomToTop( bottomToTopTrsf );
1893 TopoDS_Face botFace = TopoDS::Face( myBlock.Shape( ID_BOT_FACE ));
1894 TopoDS_Face topFace = TopoDS::Face( myBlock.Shape( ID_TOP_FACE ));
1895 // associate top and bottom faces
1896 TAssocTool::TShapeShapeMap shape2ShapeMap;
1897 const bool sameTopo =
1898 TAssocTool::FindSubShapeAssociation( botFace, myBlock.Mesh(),
1899 topFace, myBlock.Mesh(),
1902 for ( size_t iQ = 0; iQ < thePrism.myWallQuads.size(); ++iQ )
1904 const Prism_3D::TQuadList& quadList = thePrism.myWallQuads[iQ];
1905 StdMeshers_FaceSidePtr botSide = quadList.front()->side[ QUAD_BOTTOM_SIDE ];
1906 StdMeshers_FaceSidePtr topSide = quadList.back ()->side[ QUAD_TOP_SIDE ];
1907 if ( botSide->NbEdges() == topSide->NbEdges() )
1909 for ( int iE = 0; iE < botSide->NbEdges(); ++iE )
1911 TAssocTool::InsertAssociation( botSide->Edge( iE ),
1912 topSide->Edge( iE ), shape2ShapeMap );
1913 TAssocTool::InsertAssociation( myHelper->IthVertex( 0, botSide->Edge( iE )),
1914 myHelper->IthVertex( 0, topSide->Edge( iE )),
1920 TopoDS_Vertex vb, vt;
1921 StdMeshers_FaceSidePtr sideB, sideT;
1922 vb = myHelper->IthVertex( 0, botSide->Edge( 0 ));
1923 vt = myHelper->IthVertex( 0, topSide->Edge( 0 ));
1924 sideB = quadList.front()->side[ QUAD_LEFT_SIDE ];
1925 sideT = quadList.back ()->side[ QUAD_LEFT_SIDE ];
1926 if ( vb.IsSame( sideB->FirstVertex() ) &&
1927 vt.IsSame( sideT->LastVertex() ))
1929 TAssocTool::InsertAssociation( botSide->Edge( 0 ),
1930 topSide->Edge( 0 ), shape2ShapeMap );
1931 TAssocTool::InsertAssociation( vb, vt, shape2ShapeMap );
1933 vb = myHelper->IthVertex( 1, botSide->Edge( botSide->NbEdges()-1 ));
1934 vt = myHelper->IthVertex( 1, topSide->Edge( topSide->NbEdges()-1 ));
1935 sideB = quadList.front()->side[ QUAD_RIGHT_SIDE ];
1936 sideT = quadList.back ()->side[ QUAD_RIGHT_SIDE ];
1937 if ( vb.IsSame( sideB->FirstVertex() ) &&
1938 vt.IsSame( sideT->LastVertex() ))
1940 TAssocTool::InsertAssociation( botSide->Edge( botSide->NbEdges()-1 ),
1941 topSide->Edge( topSide->NbEdges()-1 ),
1943 TAssocTool::InsertAssociation( vb, vt, shape2ShapeMap );
1948 // Find matching nodes of top and bottom faces
1949 TNodeNodeMap n2nMap;
1950 if ( ! TAssocTool::FindMatchingNodesOnFaces( botFace, myBlock.Mesh(),
1951 topFace, myBlock.Mesh(),
1952 shape2ShapeMap, n2nMap ))
1955 return toSM( error(TCom("Mesh on faces #") << botSM->GetId()
1956 <<" and #"<< topSM->GetId() << " seems different" ));
1958 return toSM( error(TCom("Topology of faces #") << botSM->GetId()
1959 <<" and #"<< topSM->GetId() << " seems different" ));
1962 // Fill myBotToColumnMap
1964 int zSize = myBlock.VerticalSize();
1966 TNodeNodeMap::iterator bN_tN = n2nMap.begin();
1967 for ( ; bN_tN != n2nMap.end(); ++bN_tN )
1969 const SMDS_MeshNode* botNode = bN_tN->first;
1970 const SMDS_MeshNode* topNode = bN_tN->second;
1971 if ( botNode->GetPosition()->GetTypeOfPosition() != SMDS_TOP_FACE )
1972 continue; // wall columns are contained in myBlock
1973 // create node column
1974 Prism_3D::TNode bN( botNode );
1975 TNode2ColumnMap::iterator bN_col =
1976 myBotToColumnMap.insert( make_pair ( bN, TNodeColumn() )).first;
1977 TNodeColumn & column = bN_col->second;
1978 column.resize( zSize );
1979 column.front() = botNode;
1980 column.back() = topNode;
1985 //================================================================================
1987 * \brief Remove quadrangles from the top face and
1988 * create triangles there by projection from the bottom
1989 * \retval bool - a success or not
1991 //================================================================================
1993 bool StdMeshers_Prism_3D::projectBottomToTop( const gp_Trsf & bottomToTopTrsf )
1995 SMESHDS_Mesh* meshDS = myBlock.MeshDS();
1996 SMESH_subMesh * botSM = myBlock.SubMesh( ID_BOT_FACE );
1997 SMESH_subMesh * topSM = myBlock.SubMesh( ID_TOP_FACE );
1999 SMESHDS_SubMesh * botSMDS = botSM->GetSubMeshDS();
2000 SMESHDS_SubMesh * topSMDS = topSM->GetSubMeshDS();
2002 if ( topSMDS && topSMDS->NbElements() > 0 )
2003 topSM->ComputeStateEngine( SMESH_subMesh::CLEAN );
2005 const TopoDS_Face& botFace = TopoDS::Face( myBlock.Shape( ID_BOT_FACE )); // oriented within
2006 const TopoDS_Face& topFace = TopoDS::Face( myBlock.Shape( ID_TOP_FACE )); // the 3D SHAPE
2007 int topFaceID = meshDS->ShapeToIndex( topFace );
2009 SMESH_MesherHelper botHelper( *myHelper->GetMesh() );
2010 botHelper.SetSubShape( botFace );
2011 botHelper.ToFixNodeParameters( true );
2013 SMESH_MesherHelper topHelper( *myHelper->GetMesh() );
2014 topHelper.SetSubShape( topFace );
2015 topHelper.ToFixNodeParameters( true );
2016 double distXYZ[4], fixTol = 10 * topHelper.MaxTolerance( topFace );
2018 // Fill myBotToColumnMap
2020 int zSize = myBlock.VerticalSize();
2021 Prism_3D::TNode prevTNode;
2022 SMDS_NodeIteratorPtr nIt = botSMDS->GetNodes();
2023 while ( nIt->more() )
2025 const SMDS_MeshNode* botNode = nIt->next();
2026 const SMDS_MeshNode* topNode = 0;
2027 if ( botNode->GetPosition()->GetTypeOfPosition() != SMDS_TOP_FACE )
2028 continue; // strange
2030 Prism_3D::TNode bN( botNode );
2031 if ( bottomToTopTrsf.Form() == gp_Identity )
2033 // compute bottom node params
2034 gp_XYZ paramHint(-1,-1,-1);
2035 if ( prevTNode.IsNeighbor( bN ))
2037 paramHint = prevTNode.GetParams();
2038 // double tol = 1e-2 * ( prevTNode.GetCoords() - bN.GetCoords() ).Modulus();
2039 // myBlock.SetTolerance( Min( myBlock.GetTolerance(), tol ));
2041 if ( !myBlock.ComputeParameters( bN.GetCoords(), bN.ChangeParams(),
2042 ID_BOT_FACE, paramHint ))
2043 return toSM( error(TCom("Can't compute normalized parameters for node ")
2044 << botNode->GetID() << " on the face #"<< botSM->GetId() ));
2046 // compute top node coords
2047 gp_XYZ topXYZ; gp_XY topUV;
2048 if ( !myBlock.FacePoint( ID_TOP_FACE, bN.GetParams(), topXYZ ) ||
2049 !myBlock.FaceUV ( ID_TOP_FACE, bN.GetParams(), topUV ))
2050 return toSM( error(TCom("Can't compute coordinates "
2051 "by normalized parameters on the face #")<< topSM->GetId() ));
2052 topNode = meshDS->AddNode( topXYZ.X(),topXYZ.Y(),topXYZ.Z() );
2053 meshDS->SetNodeOnFace( topNode, topFaceID, topUV.X(), topUV.Y() );
2055 else // use bottomToTopTrsf
2057 gp_XYZ coords = bN.GetCoords();
2058 bottomToTopTrsf.Transforms( coords );
2059 topNode = meshDS->AddNode( coords.X(), coords.Y(), coords.Z() );
2060 gp_XY topUV = botHelper.GetNodeUV( botFace, botNode, 0, &checkUV );
2061 meshDS->SetNodeOnFace( topNode, topFaceID, topUV.X(), topUV.Y() );
2063 if ( topHelper.CheckNodeUV( topFace, topNode, topUV, fixTol, /*force=*/false, distXYZ ) &&
2064 distXYZ[0] > fixTol && distXYZ[0] < fixTol * 1e+3 )
2065 meshDS->MoveNode( topNode, distXYZ[1], distXYZ[2], distXYZ[3] ); // transform can be inaccurate
2067 // create node column
2068 TNode2ColumnMap::iterator bN_col =
2069 myBotToColumnMap.insert( make_pair ( bN, TNodeColumn() )).first;
2070 TNodeColumn & column = bN_col->second;
2071 column.resize( zSize );
2072 column.front() = botNode;
2073 column.back() = topNode;
2078 const bool oldSetElemsOnShape = myHelper->SetElementsOnShape( false );
2080 // care of orientation;
2081 // if the bottom faces is orienetd OK then top faces must be reversed
2082 bool reverseTop = true;
2083 if ( myHelper->NbAncestors( botFace, *myBlock.Mesh(), TopAbs_SOLID ) > 1 )
2084 reverseTop = ! myHelper->IsReversedSubMesh( botFace );
2085 int iFrw, iRev, *iPtr = &( reverseTop ? iRev : iFrw );
2087 // loop on bottom mesh faces
2088 SMDS_ElemIteratorPtr faceIt = botSMDS->GetElements();
2089 vector< const SMDS_MeshNode* > nodes;
2090 while ( faceIt->more() )
2092 const SMDS_MeshElement* face = faceIt->next();
2093 if ( !face || face->GetType() != SMDSAbs_Face )
2096 // find top node in columns for each bottom node
2097 int nbNodes = face->NbCornerNodes();
2098 nodes.resize( nbNodes );
2099 for ( iFrw = 0, iRev = nbNodes-1; iFrw < nbNodes; ++iFrw, --iRev )
2101 const SMDS_MeshNode* n = face->GetNode( *iPtr );
2102 if ( n->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE ) {
2103 TNode2ColumnMap::iterator bot_column = myBotToColumnMap.find( n );
2104 if ( bot_column == myBotToColumnMap.end() )
2105 return toSM( error(TCom("No nodes found above node ") << n->GetID() ));
2106 nodes[ iFrw ] = bot_column->second.back();
2109 const TNodeColumn* column = myBlock.GetNodeColumn( n );
2111 return toSM( error(TCom("No side nodes found above node ") << n->GetID() ));
2112 nodes[ iFrw ] = column->back();
2115 SMDS_MeshElement* newFace = 0;
2116 switch ( nbNodes ) {
2119 newFace = myHelper->AddFace(nodes[0], nodes[1], nodes[2]);
2123 newFace = myHelper->AddFace( nodes[0], nodes[1], nodes[2], nodes[3] );
2127 newFace = meshDS->AddPolygonalFace( nodes );
2130 meshDS->SetMeshElementOnShape( newFace, topFaceID );
2133 myHelper->SetElementsOnShape( oldSetElemsOnShape );
2138 //=======================================================================
2139 //function : project2dMesh
2140 //purpose : Project mesh faces from a source FACE of one prism (theSrcFace)
2141 // to a source FACE of another prism (theTgtFace)
2142 //=======================================================================
2144 bool StdMeshers_Prism_3D::project2dMesh(const TopoDS_Face& theSrcFace,
2145 const TopoDS_Face& theTgtFace)
2147 TProjction2dAlgo* projector2D = TProjction2dAlgo::instance( this );
2148 projector2D->myHyp.SetSourceFace( theSrcFace );
2149 bool ok = projector2D->Compute( *myHelper->GetMesh(), theTgtFace );
2151 SMESH_subMesh* tgtSM = myHelper->GetMesh()->GetSubMesh( theTgtFace );
2152 tgtSM->ComputeStateEngine ( SMESH_subMesh::CHECK_COMPUTE_STATE );
2153 tgtSM->ComputeSubMeshStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
2158 //================================================================================
2160 * \brief Set projection coordinates of a node to a face and it's sub-shapes
2161 * \param faceID - the face given by in-block ID
2162 * \param params - node normalized parameters
2163 * \retval bool - is a success
2165 //================================================================================
2167 bool StdMeshers_Prism_3D::setFaceAndEdgesXYZ( const int faceID, const gp_XYZ& params, int z )
2169 // find base and top edges of the face
2170 enum { BASE = 0, TOP, LEFT, RIGHT };
2171 vector< int > edgeVec; // 0-base, 1-top
2172 SMESH_Block::GetFaceEdgesIDs( faceID, edgeVec );
2174 myBlock.EdgePoint( edgeVec[ BASE ], params, myShapeXYZ[ edgeVec[ BASE ]]);
2175 myBlock.EdgePoint( edgeVec[ TOP ], params, myShapeXYZ[ edgeVec[ TOP ]]);
2177 SHOWYXZ("\nparams ", params);
2178 SHOWYXZ("TOP is " <<edgeVec[ TOP ], myShapeXYZ[ edgeVec[ TOP]]);
2179 SHOWYXZ("BASE is "<<edgeVec[ BASE], myShapeXYZ[ edgeVec[ BASE]]);
2181 if ( faceID == SMESH_Block::ID_Fx0z || faceID == SMESH_Block::ID_Fx1z )
2183 myBlock.EdgePoint( edgeVec[ LEFT ], params, myShapeXYZ[ edgeVec[ LEFT ]]);
2184 myBlock.EdgePoint( edgeVec[ RIGHT ], params, myShapeXYZ[ edgeVec[ RIGHT ]]);
2186 SHOWYXZ("VER "<<edgeVec[ LEFT], myShapeXYZ[ edgeVec[ LEFT]]);
2187 SHOWYXZ("VER "<<edgeVec[ RIGHT], myShapeXYZ[ edgeVec[ RIGHT]]);
2189 myBlock.FacePoint( faceID, params, myShapeXYZ[ faceID ]);
2190 SHOWYXZ("FacePoint "<<faceID, myShapeXYZ[ faceID]);
2195 //=======================================================================
2197 //purpose : If (!isOK), sets the error to a sub-mesh of a current SOLID
2198 //=======================================================================
2200 bool StdMeshers_Prism_3D::toSM( bool isOK )
2202 if ( mySetErrorToSM &&
2205 !myHelper->GetSubShape().IsNull() &&
2206 myHelper->GetSubShape().ShapeType() == TopAbs_SOLID)
2208 SMESH_subMesh* sm = myHelper->GetMesh()->GetSubMesh( myHelper->GetSubShape() );
2209 sm->GetComputeError() = this->GetComputeError();
2210 // clear error in order not to return it twice
2211 _error = COMPERR_OK;
2217 //=======================================================================
2218 //function : shapeID
2219 //purpose : Return index of a shape
2220 //=======================================================================
2222 int StdMeshers_Prism_3D::shapeID( const TopoDS_Shape& S )
2224 if ( S.IsNull() ) return 0;
2225 if ( !myHelper ) return -3;
2226 return myHelper->GetMeshDS()->ShapeToIndex( S );
2229 namespace // utils used by StdMeshers_Prism_3D::IsApplicable()
2231 struct EdgeWithNeighbors
2235 EdgeWithNeighbors(const TopoDS_Edge& E, int iE, int nbE, int shift = 0 ):
2237 _iL( SMESH_MesherHelper::WrapIndex( iE-1, nbE ) + shift ),
2238 _iR( SMESH_MesherHelper::WrapIndex( iE+1, nbE ) + shift )
2241 EdgeWithNeighbors() {}
2246 TopTools_IndexedMapOfShape *_faces; // pointer because its copy constructor is private
2247 TopoDS_Edge _topEdge;
2248 vector< EdgeWithNeighbors >*_edges;
2250 vector< bool > _isCheckedEdge;
2251 int _nbCheckedEdges; // nb of EDGEs whose location is defined
2252 PrismSide *_leftSide;
2253 PrismSide *_rightSide;
2254 const TopoDS_Edge& Edge( int i ) const
2256 return (*_edges)[ i ]._edge;
2258 int FindEdge( const TopoDS_Edge& E ) const
2260 for ( size_t i = 0; i < _edges->size(); ++i )
2261 if ( E.IsSame( Edge( i ))) return i;
2265 //--------------------------------------------------------------------------------
2267 * \brief Return ordered edges of a face
2269 bool getEdges( const TopoDS_Face& face,
2270 vector< EdgeWithNeighbors > & edges,
2271 const bool noHolesAllowed)
2273 list< TopoDS_Edge > ee;
2274 list< int > nbEdgesInWires;
2275 int nbW = SMESH_Block::GetOrderedEdges( face, ee, nbEdgesInWires );
2276 if ( nbW > 1 && noHolesAllowed )
2280 list< TopoDS_Edge >::iterator e = ee.begin();
2281 list< int >::iterator nbE = nbEdgesInWires.begin();
2282 for ( ; nbE != nbEdgesInWires.end(); ++nbE )
2283 for ( iE = 0; iE < *nbE; ++e, ++iE )
2284 if ( SMESH_Algo::isDegenerated( *e ))
2292 e->Orientation( TopAbs_FORWARD ); // for operator==() to work
2297 for ( nbE = nbEdgesInWires.begin(); nbE != nbEdgesInWires.end(); ++nbE )
2299 for ( iE = 0; iE < *nbE; ++e, ++iE )
2300 edges.push_back( EdgeWithNeighbors( *e, iE, *nbE, nbTot ));
2303 return edges.size();
2305 //--------------------------------------------------------------------------------
2307 * \brief Return another faces sharing an edge
2309 const TopoDS_Shape & getAnotherFace( const TopoDS_Face& face,
2310 const TopoDS_Edge& edge,
2311 TopTools_IndexedDataMapOfShapeListOfShape& facesOfEdge)
2313 TopTools_ListIteratorOfListOfShape faceIt( facesOfEdge.FindFromKey( edge ));
2314 for ( ; faceIt.More(); faceIt.Next() )
2315 if ( !face.IsSame( faceIt.Value() ))
2316 return faceIt.Value();
2321 //================================================================================
2323 * \brief Return true if the algorithm can mesh this shape
2324 * \param [in] aShape - shape to check
2325 * \param [in] toCheckAll - if true, this check returns OK if all shapes are OK,
2326 * else, returns OK if at least one shape is OK
2328 //================================================================================
2330 bool StdMeshers_Prism_3D::IsApplicable(const TopoDS_Shape & shape, bool toCheckAll)
2332 TopExp_Explorer sExp( shape, TopAbs_SOLID );
2336 for ( ; sExp.More(); sExp.Next() )
2340 TopExp_Explorer shExp( sExp.Current(), TopAbs_SHELL );
2341 if ( shExp.More() ) {
2342 shell = shExp.Current();
2347 if ( shell.IsNull() ) {
2348 if ( toCheckAll ) return false;
2352 TopTools_IndexedMapOfShape allFaces;
2353 TopExp::MapShapes( shell, TopAbs_FACE, allFaces );
2354 if ( allFaces.Extent() < 3 ) {
2355 if ( toCheckAll ) return false;
2359 if ( allFaces.Extent() == 6 )
2361 TopTools_IndexedMapOfOrientedShape map;
2362 bool isBox = SMESH_Block::FindBlockShapes( TopoDS::Shell( shell ),
2363 TopoDS_Vertex(), TopoDS_Vertex(), map );
2365 if ( !toCheckAll ) return true;
2370 TopTools_IndexedMapOfShape allShapes;
2371 TopExp::MapShapes( shape, allShapes );
2374 TopTools_IndexedDataMapOfShapeListOfShape facesOfEdge;
2375 TopTools_ListIteratorOfListOfShape faceIt;
2376 TopExp::MapShapesAndAncestors( sExp.Current(), TopAbs_EDGE, TopAbs_FACE , facesOfEdge );
2377 if ( facesOfEdge.IsEmpty() ) {
2378 if ( toCheckAll ) return false;
2382 typedef vector< EdgeWithNeighbors > TEdgeWithNeighborsVec;
2383 vector< TEdgeWithNeighborsVec > faceEdgesVec( allFaces.Extent() + 1 );
2384 TopTools_IndexedMapOfShape* facesOfSide = new TopTools_IndexedMapOfShape[ faceEdgesVec.size() ];
2385 SMESHUtils::ArrayDeleter<TopTools_IndexedMapOfShape> delFacesOfSide( facesOfSide );
2387 // try to use each face as a bottom one
2388 bool prismDetected = false;
2389 for ( int iF = 1; iF < allFaces.Extent() && !prismDetected; ++iF )
2391 const TopoDS_Face& botF = TopoDS::Face( allFaces( iF ));
2393 TEdgeWithNeighborsVec& botEdges = faceEdgesVec[ iF ];
2394 if ( botEdges.empty() )
2396 if ( !getEdges( botF, botEdges, /*noHoles=*/false ))
2398 if ( allFaces.Extent()-1 <= (int) botEdges.size() )
2399 continue; // all faces are adjacent to botF - no top FACE
2401 // init data of side FACEs
2402 vector< PrismSide > sides( botEdges.size() );
2403 for ( int iS = 0; iS < botEdges.size(); ++iS )
2405 sides[ iS ]._topEdge = botEdges[ iS ]._edge;
2406 sides[ iS ]._face = botF;
2407 sides[ iS ]._leftSide = & sides[ botEdges[ iS ]._iR ];
2408 sides[ iS ]._rightSide = & sides[ botEdges[ iS ]._iL ];
2409 sides[ iS ]._faces = & facesOfSide[ iS ];
2410 sides[ iS ]._faces->Clear();
2413 bool isOK = true; // ok for a current botF
2414 bool isAdvanced = true;
2415 int nbFoundSideFaces = 0;
2416 for ( int iLoop = 0; isOK && isAdvanced; ++iLoop )
2419 for ( size_t iS = 0; iS < sides.size() && isOK; ++iS )
2421 PrismSide& side = sides[ iS ];
2422 if ( side._face.IsNull() )
2424 if ( side._topEdge.IsNull() )
2426 // find vertical EDGEs --- EGDEs shared with neighbor side FACEs
2427 for ( int is2nd = 0; is2nd < 2 && isOK; ++is2nd ) // 2 adjacent neighbors
2429 int di = is2nd ? 1 : -1;
2430 const PrismSide* adjSide = is2nd ? side._rightSide : side._leftSide;
2431 for ( size_t i = 1; i < side._edges->size(); ++i )
2433 int iE = SMESH_MesherHelper::WrapIndex( i*di + side._iBotEdge, side._edges->size());
2434 if ( side._isCheckedEdge[ iE ] ) continue;
2435 const TopoDS_Edge& vertE = side.Edge( iE );
2436 const TopoDS_Shape& neighborF = getAnotherFace( side._face, vertE, facesOfEdge );
2437 bool isEdgeShared = adjSide->_faces->Contains( neighborF );
2441 side._isCheckedEdge[ iE ] = true;
2442 side._nbCheckedEdges++;
2443 int nbNotCheckedE = side._edges->size() - side._nbCheckedEdges;
2444 if ( nbNotCheckedE == 1 )
2449 if ( i == 1 && iLoop == 0 ) isOK = false;
2455 int nbNotCheckedE = side._edges->size() - side._nbCheckedEdges;
2456 if ( nbNotCheckedE == 1 )
2458 vector<bool>::iterator ii = std::find( side._isCheckedEdge.begin(),
2459 side._isCheckedEdge.end(), false );
2460 if ( ii != side._isCheckedEdge.end() )
2462 size_t iE = std::distance( side._isCheckedEdge.begin(), ii );
2463 side._topEdge = side.Edge( iE );
2466 isOK = ( nbNotCheckedE >= 1 );
2468 else //if ( !side._topEdge.IsNull() )
2470 // get a next face of a side
2471 const TopoDS_Shape& f = getAnotherFace( side._face, side._topEdge, facesOfEdge );
2472 side._faces->Add( f );
2474 if ( f.IsSame( side._face ) || // _topEdge is a seam
2475 SMESH_MesherHelper::Count( f, TopAbs_WIRE, false ) != 1 )
2479 else if ( side._leftSide != & side ) // not closed side face
2481 if ( side._leftSide->_faces->Contains( f ))
2484 side._leftSide->_face.Nullify();
2485 side._leftSide->_topEdge.Nullify();
2487 if ( side._rightSide->_faces->Contains( f ))
2490 side._rightSide->_face.Nullify();
2491 side._rightSide->_topEdge.Nullify();
2496 side._face.Nullify();
2497 side._topEdge.Nullify();
2500 side._face = TopoDS::Face( f );
2501 int faceID = allFaces.FindIndex( side._face );
2502 side._edges = & faceEdgesVec[ faceID ];
2503 if ( side._edges->empty() )
2504 if ( !getEdges( side._face, * side._edges, /*noHoles=*/true ))
2506 const int nbE = side._edges->size();
2511 side._iBotEdge = side.FindEdge( side._topEdge );
2512 side._isCheckedEdge.clear();
2513 side._isCheckedEdge.resize( nbE, false );
2514 side._isCheckedEdge[ side._iBotEdge ] = true;
2515 side._nbCheckedEdges = 1; // bottom EDGE is known
2517 side._topEdge.Nullify();
2518 isOK = ( !side._edges->empty() || side._faces->Extent() > 1 );
2520 } //if ( !side._topEdge.IsNull() )
2522 } // loop on prism sides
2524 if ( nbFoundSideFaces > allFaces.Extent() )
2528 if ( iLoop > allFaces.Extent() * 10 )
2532 cerr << "BUG: infinite loop in StdMeshers_Prism_3D::IsApplicable()" << endl;
2535 } // while isAdvanced
2537 if ( isOK && sides[0]._faces->Extent() > 1 )
2539 const int nbFaces = sides[0]._faces->Extent();
2540 if ( botEdges.size() == 1 ) // cylinder
2542 prismDetected = ( nbFaces == allFaces.Extent()-1 );
2546 const TopoDS_Shape& topFace = sides[0]._faces->FindKey( nbFaces );
2548 for ( iS = 1; iS < sides.size(); ++iS )
2549 if ( !sides[ iS ]._faces->Contains( topFace ))
2551 prismDetected = ( iS == sides.size() );
2554 } // loop on allFaces
2556 if ( !prismDetected && toCheckAll ) return false;
2557 if ( prismDetected && !toCheckAll ) return true;
2566 //================================================================================
2568 * \brief Return true if this node and other one belong to one face
2570 //================================================================================
2572 bool Prism_3D::TNode::IsNeighbor( const Prism_3D::TNode& other ) const
2574 if ( !other.myNode || !myNode ) return false;
2576 SMDS_ElemIteratorPtr fIt = other.myNode->GetInverseElementIterator(SMDSAbs_Face);
2577 while ( fIt->more() )
2578 if ( fIt->next()->GetNodeIndex( myNode ) >= 0 )
2583 //================================================================================
2585 * \brief Prism initialization
2587 //================================================================================
2589 void TPrismTopo::Clear()
2591 myShape3D.Nullify();
2594 myWallQuads.clear();
2595 myBottomEdges.clear();
2596 myNbEdgesInWires.clear();
2597 myWallQuads.clear();
2600 //================================================================================
2602 * \brief Set upside-down
2604 //================================================================================
2606 void TPrismTopo::SetUpsideDown()
2608 std::swap( myBottom, myTop );
2609 myBottomEdges.clear();
2610 std::reverse( myBottomEdges.begin(), myBottomEdges.end() );
2611 for ( size_t i = 0; i < myWallQuads.size(); ++i )
2613 myWallQuads[i].reverse();
2614 TQuadList::iterator q = myWallQuads[i].begin();
2615 for ( ; q != myWallQuads[i].end(); ++q )
2617 (*q)->shift( 2, /*keepUnitOri=*/true );
2619 myBottomEdges.push_back( myWallQuads[i].front()->side[ QUAD_BOTTOM_SIDE ].grid->Edge(0) );
2623 } // namespace Prism_3D
2625 //================================================================================
2627 * \brief Constructor. Initialization is needed
2629 //================================================================================
2631 StdMeshers_PrismAsBlock::StdMeshers_PrismAsBlock()
2636 StdMeshers_PrismAsBlock::~StdMeshers_PrismAsBlock()
2640 void StdMeshers_PrismAsBlock::Clear()
2643 myShapeIDMap.Clear();
2647 delete mySide; mySide = 0;
2649 myParam2ColumnMaps.clear();
2650 myShapeIndex2ColumnMap.clear();
2653 //=======================================================================
2654 //function : initPrism
2655 //purpose : Analyse shape geometry and mesh.
2656 // If there are triangles on one of faces, it becomes 'bottom'.
2657 // thePrism.myBottom can be already set up.
2658 //=======================================================================
2660 bool StdMeshers_Prism_3D::initPrism(Prism_3D::TPrismTopo& thePrism,
2661 const TopoDS_Shape& shape3D)
2663 myHelper->SetSubShape( shape3D );
2665 SMESH_subMesh* mainSubMesh = myHelper->GetMesh()->GetSubMeshContaining( shape3D );
2666 if ( !mainSubMesh ) return toSM( error(COMPERR_BAD_INPUT_MESH,"Null submesh of shape3D"));
2668 // detect not-quad FACE sub-meshes of the 3D SHAPE
2669 list< SMESH_subMesh* > notQuadGeomSubMesh;
2670 list< SMESH_subMesh* > notQuadElemSubMesh;
2673 SMESH_subMesh* anyFaceSM = 0;
2674 SMESH_subMeshIteratorPtr smIt = mainSubMesh->getDependsOnIterator(false,true);
2675 while ( smIt->more() )
2677 SMESH_subMesh* sm = smIt->next();
2678 const TopoDS_Shape& face = sm->GetSubShape();
2679 if ( face.ShapeType() > TopAbs_FACE ) break;
2680 else if ( face.ShapeType() < TopAbs_FACE ) continue;
2684 // is quadrangle FACE?
2685 list< TopoDS_Edge > orderedEdges;
2686 list< int > nbEdgesInWires;
2687 int nbWires = SMESH_Block::GetOrderedEdges( TopoDS::Face( face ), orderedEdges,
2689 if ( nbWires != 1 || nbEdgesInWires.front() != 4 )
2690 notQuadGeomSubMesh.push_back( sm );
2692 // look for not quadrangle mesh elements
2693 if ( SMESHDS_SubMesh* smDS = sm->GetSubMeshDS() )
2694 if ( !myHelper->IsSameElemGeometry( smDS, SMDSGeom_QUADRANGLE ))
2695 notQuadElemSubMesh.push_back( sm );
2698 int nbNotQuadMeshed = notQuadElemSubMesh.size();
2699 int nbNotQuad = notQuadGeomSubMesh.size();
2700 bool hasNotQuad = ( nbNotQuad || nbNotQuadMeshed );
2703 if ( nbNotQuadMeshed > 2 )
2705 return toSM( error(COMPERR_BAD_INPUT_MESH,
2706 TCom("More than 2 faces with not quadrangle elements: ")
2707 <<nbNotQuadMeshed));
2709 if ( nbNotQuad > 2 || !thePrism.myBottom.IsNull() )
2711 // Issue 0020843 - one of side FACEs is quasi-quadrilateral (not 4 EDGEs).
2712 // Remove from notQuadGeomSubMesh faces meshed with regular grid
2713 int nbQuasiQuads = removeQuasiQuads( notQuadGeomSubMesh, myHelper,
2714 TQuadrangleAlgo::instance(this,myHelper) );
2715 nbNotQuad -= nbQuasiQuads;
2716 if ( nbNotQuad > 2 )
2717 return toSM( error(COMPERR_BAD_SHAPE,
2718 TCom("More than 2 not quadrilateral faces: ") <<nbNotQuad));
2719 hasNotQuad = ( nbNotQuad || nbNotQuadMeshed );
2722 // Analyse mesh and topology of FACEs: choose the bottom sub-mesh.
2723 // If there are not quadrangle FACEs, they are top and bottom ones.
2724 // Not quadrangle FACEs must be only on top and bottom.
2726 SMESH_subMesh * botSM = 0;
2727 SMESH_subMesh * topSM = 0;
2729 if ( hasNotQuad ) // can choose a bottom FACE
2731 if ( nbNotQuadMeshed > 0 ) botSM = notQuadElemSubMesh.front();
2732 else botSM = notQuadGeomSubMesh.front();
2733 if ( nbNotQuadMeshed > 1 ) topSM = notQuadElemSubMesh.back();
2734 else if ( nbNotQuad > 1 ) topSM = notQuadGeomSubMesh.back();
2736 if ( topSM == botSM ) {
2737 if ( nbNotQuadMeshed > 1 ) topSM = notQuadElemSubMesh.front();
2738 else topSM = notQuadGeomSubMesh.front();
2741 // detect mesh triangles on wall FACEs
2742 if ( nbNotQuad == 2 && nbNotQuadMeshed > 0 ) {
2744 if ( nbNotQuadMeshed == 1 )
2745 ok = ( find( notQuadGeomSubMesh.begin(),
2746 notQuadGeomSubMesh.end(), botSM ) != notQuadGeomSubMesh.end() );
2748 ok = ( notQuadGeomSubMesh == notQuadElemSubMesh );
2750 return toSM( error(COMPERR_BAD_INPUT_MESH,
2751 "Side face meshed with not quadrangle elements"));
2755 thePrism.myNotQuadOnTop = ( nbNotQuadMeshed > 1 );
2757 // use thePrism.myBottom
2758 if ( !thePrism.myBottom.IsNull() )
2761 if ( ! botSM->GetSubShape().IsSame( thePrism.myBottom )) {
2762 std::swap( botSM, topSM );
2763 if ( !botSM || ! botSM->GetSubShape().IsSame( thePrism.myBottom ))
2764 return toSM( error( COMPERR_BAD_INPUT_MESH,
2765 "Incompatible non-structured sub-meshes"));
2769 botSM = myHelper->GetMesh()->GetSubMesh( thePrism.myBottom );
2772 else if ( !botSM ) // find a proper bottom
2774 // composite walls or not prism shape
2775 for ( TopExp_Explorer f( shape3D, TopAbs_FACE ); f.More(); f.Next() )
2777 int minNbFaces = 2 + myHelper->Count( f.Current(), TopAbs_EDGE, false);
2778 if ( nbFaces >= minNbFaces)
2781 thePrism.myBottom = TopoDS::Face( f.Current() );
2782 if ( initPrism( thePrism, shape3D ))
2785 return toSM( error( COMPERR_BAD_SHAPE ));
2789 // find vertex 000 - the one with smallest coordinates (for easy DEBUG :-)
2791 double minVal = DBL_MAX, minX, val;
2792 for ( TopExp_Explorer exp( botSM->GetSubShape(), TopAbs_VERTEX );
2793 exp.More(); exp.Next() )
2795 const TopoDS_Vertex& v = TopoDS::Vertex( exp.Current() );
2796 gp_Pnt P = BRep_Tool::Pnt( v );
2797 val = P.X() + P.Y() + P.Z();
2798 if ( val < minVal || ( val == minVal && P.X() < minX )) {
2805 thePrism.myShape3D = shape3D;
2806 if ( thePrism.myBottom.IsNull() )
2807 thePrism.myBottom = TopoDS::Face( botSM->GetSubShape() );
2808 thePrism.myBottom.Orientation( myHelper->GetSubShapeOri( shape3D,
2809 thePrism.myBottom ));
2810 // Get ordered bottom edges
2811 TopoDS_Face reverseBottom = // to have order of top EDGEs as in the top FACE
2812 TopoDS::Face( thePrism.myBottom.Reversed() );
2813 SMESH_Block::GetOrderedEdges( reverseBottom,
2814 thePrism.myBottomEdges,
2815 thePrism.myNbEdgesInWires, V000 );
2817 // Get Wall faces corresponding to the ordered bottom edges and the top FACE
2818 if ( !getWallFaces( thePrism, nbFaces ))
2819 return false; //toSM( error(COMPERR_BAD_SHAPE, "Can't find side faces"));
2823 if ( !thePrism.myTop.IsSame( topSM->GetSubShape() ))
2825 (notQuadGeomSubMesh.empty() ? COMPERR_BAD_INPUT_MESH : COMPERR_BAD_SHAPE,
2826 "Non-quadrilateral faces are not opposite"));
2828 // check that the found top and bottom FACEs are opposite
2829 list< TopoDS_Edge >::iterator edge = thePrism.myBottomEdges.begin();
2830 for ( ; edge != thePrism.myBottomEdges.end(); ++edge )
2831 if ( myHelper->IsSubShape( *edge, thePrism.myTop ))
2833 (notQuadGeomSubMesh.empty() ? COMPERR_BAD_INPUT_MESH : COMPERR_BAD_SHAPE,
2834 "Non-quadrilateral faces are not opposite"));
2837 if ( thePrism.myBottomEdges.size() > thePrism.myWallQuads.size() )
2839 // composite bottom sides => set thePrism upside-down
2840 thePrism.SetUpsideDown();
2846 //================================================================================
2848 * \brief Initialization.
2849 * \param helper - helper loaded with mesh and 3D shape
2850 * \param thePrism - a prism data
2851 * \retval bool - false if a mesh or a shape are KO
2853 //================================================================================
2855 bool StdMeshers_PrismAsBlock::Init(SMESH_MesherHelper* helper,
2856 const Prism_3D::TPrismTopo& thePrism)
2859 SMESHDS_Mesh* meshDS = myHelper->GetMeshDS();
2860 SMESH_Mesh* mesh = myHelper->GetMesh();
2863 delete mySide; mySide = 0;
2865 vector< TSideFace* > sideFaces( NB_WALL_FACES, 0 );
2866 vector< pair< double, double> > params( NB_WALL_FACES );
2867 mySide = new TSideFace( *mesh, sideFaces, params );
2870 SMESH_Block::init();
2871 myShapeIDMap.Clear();
2872 myShapeIndex2ColumnMap.clear();
2874 int wallFaceIds[ NB_WALL_FACES ] = { // to walk around a block
2875 SMESH_Block::ID_Fx0z, SMESH_Block::ID_F1yz,
2876 SMESH_Block::ID_Fx1z, SMESH_Block::ID_F0yz
2879 myError = SMESH_ComputeError::New();
2881 myNotQuadOnTop = thePrism.myNotQuadOnTop;
2883 // Find columns of wall nodes and calculate edges' lengths
2884 // --------------------------------------------------------
2886 myParam2ColumnMaps.clear();
2887 myParam2ColumnMaps.resize( thePrism.myBottomEdges.size() ); // total nb edges
2889 size_t iE, nbEdges = thePrism.myNbEdgesInWires.front(); // nb outer edges
2890 vector< double > edgeLength( nbEdges );
2891 multimap< double, int > len2edgeMap;
2893 // for each EDGE: either split into several parts, or join with several next EDGEs
2894 vector<int> nbSplitPerEdge( nbEdges, 0 );
2895 vector<int> nbUnitePerEdge( nbEdges, 0 ); // -1 means "joined to a previous"
2897 // consider continuous straight EDGEs as one side
2898 const int nbSides = countNbSides( thePrism, nbUnitePerEdge, edgeLength );
2900 list< TopoDS_Edge >::const_iterator edgeIt = thePrism.myBottomEdges.begin();
2901 for ( iE = 0; iE < nbEdges; ++iE, ++edgeIt )
2903 TParam2ColumnMap & faceColumns = myParam2ColumnMaps[ iE ];
2905 Prism_3D::TQuadList::const_iterator quad = thePrism.myWallQuads[ iE ].begin();
2906 for ( ; quad != thePrism.myWallQuads[ iE ].end(); ++quad )
2908 const TopoDS_Edge& quadBot = (*quad)->side[ QUAD_BOTTOM_SIDE ].grid->Edge( 0 );
2909 if ( !myHelper->LoadNodeColumns( faceColumns, (*quad)->face, quadBot, meshDS ))
2910 return error(COMPERR_BAD_INPUT_MESH, TCom("Can't find regular quadrangle mesh ")
2911 << "on a side face #" << MeshDS()->ShapeToIndex( (*quad)->face ));
2913 SHOWYXZ("\np1 F " <<iE, gpXYZ(faceColumns.begin()->second.front() ));
2914 SHOWYXZ("p2 F " <<iE, gpXYZ(faceColumns.rbegin()->second.front() ));
2915 SHOWYXZ("V First "<<iE, BRep_Tool::Pnt( TopExp::FirstVertex(*edgeIt,true )));
2917 if ( nbSides < NB_WALL_FACES ) // fill map used to split faces
2918 len2edgeMap.insert( make_pair( edgeLength[ iE ], iE )); // sort edges by length
2920 // Load columns of internal edges (forming holes)
2921 // and fill map ShapeIndex to TParam2ColumnMap for them
2922 for ( ; edgeIt != thePrism.myBottomEdges.end() ; ++edgeIt, ++iE )
2924 TParam2ColumnMap & faceColumns = myParam2ColumnMaps[ iE ];
2926 Prism_3D::TQuadList::const_iterator quad = thePrism.myWallQuads[ iE ].begin();
2927 for ( ; quad != thePrism.myWallQuads[ iE ].end(); ++quad )
2929 const TopoDS_Edge& quadBot = (*quad)->side[ QUAD_BOTTOM_SIDE ].grid->Edge( 0 );
2930 if ( !myHelper->LoadNodeColumns( faceColumns, (*quad)->face, quadBot, meshDS ))
2931 return error(COMPERR_BAD_INPUT_MESH, TCom("Can't find regular quadrangle mesh ")
2932 << "on a side face #" << MeshDS()->ShapeToIndex( (*quad)->face ));
2935 int id = MeshDS()->ShapeToIndex( *edgeIt );
2936 bool isForward = true; // meaningless for intenal wires
2937 myShapeIndex2ColumnMap[ id ] = make_pair( & faceColumns, isForward );
2938 // columns for vertices
2940 const SMDS_MeshNode* n0 = faceColumns.begin()->second.front();
2941 id = n0->getshapeId();
2942 myShapeIndex2ColumnMap[ id ] = make_pair( & faceColumns, isForward );
2944 const SMDS_MeshNode* n1 = faceColumns.rbegin()->second.front();
2945 id = n1->getshapeId();
2946 myShapeIndex2ColumnMap[ id ] = make_pair( & faceColumns, isForward );
2948 // SHOWYXZ("\np1 F " <<iE, gpXYZ(faceColumns.begin()->second.front() ));
2949 // SHOWYXZ("p2 F " <<iE, gpXYZ(faceColumns.rbegin()->second.front() ));
2950 // SHOWYXZ("V First "<<iE, BRep_Tool::Pnt( TopExp::FirstVertex(*edgeIt,true )));
2953 // Create 4 wall faces of a block
2954 // -------------------------------
2956 if ( nbSides <= NB_WALL_FACES ) // ************* Split faces if necessary
2958 if ( nbSides != NB_WALL_FACES ) // define how to split
2960 if ( len2edgeMap.size() != nbEdges )
2961 RETURN_BAD_RESULT("Uniqueness of edge lengths not assured");
2963 multimap< double, int >::reverse_iterator maxLen_i = len2edgeMap.rbegin();
2964 multimap< double, int >::reverse_iterator midLen_i = ++len2edgeMap.rbegin();
2966 double maxLen = maxLen_i->first;
2967 double midLen = ( len2edgeMap.size() == 1 ) ? 0 : midLen_i->first;
2968 switch ( nbEdges ) {
2969 case 1: // 0-th edge is split into 4 parts
2970 nbSplitPerEdge[ 0 ] = 4;
2972 case 2: // either the longest edge is split into 3 parts, or both edges into halves
2973 if ( maxLen / 3 > midLen / 2 ) {
2974 nbSplitPerEdge[ maxLen_i->second ] = 3;
2977 nbSplitPerEdge[ maxLen_i->second ] = 2;
2978 nbSplitPerEdge[ midLen_i->second ] = 2;
2983 // split longest into 3 parts
2984 nbSplitPerEdge[ maxLen_i->second ] = 3;
2986 // split longest into halves
2987 nbSplitPerEdge[ maxLen_i->second ] = 2;
2991 else // **************************** Unite faces
2993 int nbExraFaces = nbSides - 4; // nb of faces to fuse
2994 for ( iE = 0; iE < nbEdges; ++iE )
2996 if ( nbUnitePerEdge[ iE ] < 0 )
2998 // look for already united faces
2999 for ( int i = iE; i < iE + nbExraFaces; ++i )
3001 if ( nbUnitePerEdge[ i ] > 0 ) // a side including nbUnitePerEdge[i]+1 edge
3002 nbExraFaces += nbUnitePerEdge[ i ];
3003 nbUnitePerEdge[ i ] = -1;
3005 nbUnitePerEdge[ iE ] = nbExraFaces;
3010 // Create TSideFace's
3012 list< TopoDS_Edge >::const_iterator botE = thePrism.myBottomEdges.begin();
3013 for ( iE = 0; iE < nbEdges; ++iE, ++botE )
3015 TFaceQuadStructPtr quad = thePrism.myWallQuads[ iE ].front();
3016 const int nbSplit = nbSplitPerEdge[ iE ];
3017 const int nbExraFaces = nbUnitePerEdge[ iE ] + 1;
3018 if ( nbSplit > 0 ) // split
3020 vector< double > params;
3021 splitParams( nbSplit, &myParam2ColumnMaps[ iE ], params );
3022 const bool isForward =
3023 StdMeshers_PrismAsBlock::IsForwardEdge( myHelper->GetMeshDS(),
3024 myParam2ColumnMaps[iE],
3025 *botE, SMESH_Block::ID_Fx0z );
3026 for ( int i = 0; i < nbSplit; ++i ) {
3027 double f = ( isForward ? params[ i ] : params[ nbSplit - i-1 ]);
3028 double l = ( isForward ? params[ i+1 ] : params[ nbSplit - i ]);
3029 TSideFace* comp = new TSideFace( *mesh, wallFaceIds[ iSide ],
3030 thePrism.myWallQuads[ iE ], *botE,
3031 &myParam2ColumnMaps[ iE ], f, l );
3032 mySide->SetComponent( iSide++, comp );
3035 else if ( nbExraFaces > 1 ) // unite
3037 double u0 = 0, sumLen = 0;
3038 for ( int i = iE; i < iE + nbExraFaces; ++i )
3039 sumLen += edgeLength[ i ];
3041 vector< TSideFace* > components( nbExraFaces );
3042 vector< pair< double, double> > params( nbExraFaces );
3043 bool endReached = false;
3044 for ( int i = 0; i < nbExraFaces; ++i, ++botE, ++iE )
3046 if ( iE == nbEdges )
3049 botE = thePrism.myBottomEdges.begin();
3052 components[ i ] = new TSideFace( *mesh, wallFaceIds[ iSide ],
3053 thePrism.myWallQuads[ iE ], *botE,
3054 &myParam2ColumnMaps[ iE ]);
3055 double u1 = u0 + edgeLength[ iE ] / sumLen;
3056 params[ i ] = make_pair( u0 , u1 );
3059 TSideFace* comp = new TSideFace( *mesh, components, params );
3060 mySide->SetComponent( iSide++, comp );
3063 --iE; // for increment in an external loop on iE
3066 else if ( nbExraFaces < 0 ) // skip already united face
3071 TSideFace* comp = new TSideFace( *mesh, wallFaceIds[ iSide ],
3072 thePrism.myWallQuads[ iE ], *botE,
3073 &myParam2ColumnMaps[ iE ]);
3074 mySide->SetComponent( iSide++, comp );
3079 // Fill geometry fields of SMESH_Block
3080 // ------------------------------------
3082 vector< int > botEdgeIdVec;
3083 SMESH_Block::GetFaceEdgesIDs( ID_BOT_FACE, botEdgeIdVec );
3085 bool isForward[NB_WALL_FACES] = { true, true, true, true };
3086 Adaptor2d_Curve2d* botPcurves[NB_WALL_FACES];
3087 Adaptor2d_Curve2d* topPcurves[NB_WALL_FACES];
3089 for ( int iF = 0; iF < NB_WALL_FACES; ++iF )
3091 TSideFace * sideFace = mySide->GetComponent( iF );
3093 RETURN_BAD_RESULT("NULL TSideFace");
3094 int fID = sideFace->FaceID(); // in-block ID
3096 // fill myShapeIDMap
3097 if ( sideFace->InsertSubShapes( myShapeIDMap ) != 8 &&
3098 !sideFace->IsComplex())
3099 MESSAGE( ": Warning : InsertSubShapes() < 8 on side " << iF );
3101 // side faces geometry
3102 Adaptor2d_Curve2d* pcurves[NB_WALL_FACES];
3103 if ( !sideFace->GetPCurves( pcurves ))
3104 RETURN_BAD_RESULT("TSideFace::GetPCurves() failed");
3106 SMESH_Block::TFace& tFace = myFace[ fID - ID_FirstF ];
3107 tFace.Set( fID, sideFace->Surface(), pcurves, isForward );
3109 SHOWYXZ( endl<<"F "<< iF << " id " << fID << " FRW " << sideFace->IsForward(), sideFace->Value(0,0));
3110 // edges 3D geometry
3111 vector< int > edgeIdVec;
3112 SMESH_Block::GetFaceEdgesIDs( fID, edgeIdVec );
3113 for ( int isMax = 0; isMax < 2; ++isMax ) {
3115 int eID = edgeIdVec[ isMax ];
3116 SMESH_Block::TEdge& tEdge = myEdge[ eID - ID_FirstE ];
3117 tEdge.Set( eID, sideFace->HorizCurve(isMax), true);
3118 SHOWYXZ(eID<<" HOR"<<isMax<<"(0)", sideFace->HorizCurve(isMax)->Value(0));
3119 SHOWYXZ(eID<<" HOR"<<isMax<<"(1)", sideFace->HorizCurve(isMax)->Value(1));
3122 int eID = edgeIdVec[ isMax+2 ];
3123 SMESH_Block::TEdge& tEdge = myEdge[ eID - ID_FirstE ];
3124 tEdge.Set( eID, sideFace->VertiCurve(isMax), true);
3125 SHOWYXZ(eID<<" VER"<<isMax<<"(0)", sideFace->VertiCurve(isMax)->Value(0));
3126 SHOWYXZ(eID<<" VER"<<isMax<<"(1)", sideFace->VertiCurve(isMax)->Value(1));
3129 vector< int > vertexIdVec;
3130 SMESH_Block::GetEdgeVertexIDs( eID, vertexIdVec );
3131 myPnt[ vertexIdVec[0] - ID_FirstV ] = tEdge.GetCurve()->Value(0).XYZ();
3132 myPnt[ vertexIdVec[1] - ID_FirstV ] = tEdge.GetCurve()->Value(1).XYZ();
3135 // pcurves on horizontal faces
3136 for ( iE = 0; iE < NB_WALL_FACES; ++iE ) {
3137 if ( edgeIdVec[ BOTTOM_EDGE ] == botEdgeIdVec[ iE ] ) {
3138 botPcurves[ iE ] = sideFace->HorizPCurve( false, thePrism.myBottom );
3139 topPcurves[ iE ] = sideFace->HorizPCurve( true, thePrism.myTop );
3143 //sideFace->dumpNodes( 4 ); // debug
3145 // horizontal faces geometry
3147 SMESH_Block::TFace& tFace = myFace[ ID_BOT_FACE - ID_FirstF ];
3148 tFace.Set( ID_BOT_FACE, new BRepAdaptor_Surface( thePrism.myBottom ), botPcurves, isForward );
3149 SMESH_Block::Insert( thePrism.myBottom, ID_BOT_FACE, myShapeIDMap );
3152 SMESH_Block::TFace& tFace = myFace[ ID_TOP_FACE - ID_FirstF ];
3153 tFace.Set( ID_TOP_FACE, new BRepAdaptor_Surface( thePrism.myTop ), topPcurves, isForward );
3154 SMESH_Block::Insert( thePrism.myTop, ID_TOP_FACE, myShapeIDMap );
3156 //faceGridToPythonDump( SMESH_Block::ID_Fxy0, 50 );
3157 //faceGridToPythonDump( SMESH_Block::ID_Fxy1 );
3159 // Fill map ShapeIndex to TParam2ColumnMap
3160 // ----------------------------------------
3162 list< TSideFace* > fList;
3163 list< TSideFace* >::iterator fListIt;
3164 fList.push_back( mySide );
3165 for ( fListIt = fList.begin(); fListIt != fList.end(); ++fListIt)
3167 int nb = (*fListIt)->NbComponents();
3168 for ( int i = 0; i < nb; ++i ) {
3169 if ( TSideFace* comp = (*fListIt)->GetComponent( i ))
3170 fList.push_back( comp );
3172 if ( TParam2ColumnMap* cols = (*fListIt)->GetColumns()) {
3173 // columns for a base edge
3174 int id = MeshDS()->ShapeToIndex( (*fListIt)->BaseEdge() );
3175 bool isForward = (*fListIt)->IsForward();
3176 myShapeIndex2ColumnMap[ id ] = make_pair( cols, isForward );
3178 // columns for vertices
3179 const SMDS_MeshNode* n0 = cols->begin()->second.front();
3180 id = n0->getshapeId();
3181 myShapeIndex2ColumnMap[ id ] = make_pair( cols, isForward );
3183 const SMDS_MeshNode* n1 = cols->rbegin()->second.front();
3184 id = n1->getshapeId();
3185 myShapeIndex2ColumnMap[ id ] = make_pair( cols, !isForward );
3189 // #define SHOWYXZ(msg, xyz) { \
3190 // gp_Pnt p (xyz); \
3191 // cout << msg << " ("<< p.X() << "; " <<p.Y() << "; " <<p.Z() << ") " <<endl; \
3193 // double _u[]={ 0.1, 0.1, 0.9, 0.9 };
3194 // double _v[]={ 0.1, 0.9, 0.1, 0.9 };
3195 // for ( int z = 0; z < 2; ++z )
3196 // for ( int i = 0; i < 4; ++i )
3198 // //gp_XYZ testPar(0.25, 0.25, 0), testCoord;
3199 // int iFace = (z ? ID_TOP_FACE : ID_BOT_FACE);
3200 // gp_XYZ testPar(_u[i], _v[i], z), testCoord;
3201 // if ( !FacePoint( iFace, testPar, testCoord ))
3202 // RETURN_BAD_RESULT("TEST FacePoint() FAILED");
3203 // SHOWYXZ("IN TEST PARAM" , testPar);
3204 // SHOWYXZ("OUT TEST CORD" , testCoord);
3205 // if ( !ComputeParameters( testCoord, testPar , iFace))
3206 // RETURN_BAD_RESULT("TEST ComputeParameters() FAILED");
3207 // SHOWYXZ("OUT TEST PARAM" , testPar);
3212 //================================================================================
3214 * \brief Return pointer to column of nodes
3215 * \param node - bottom node from which the returned column goes up
3216 * \retval const TNodeColumn* - the found column
3218 //================================================================================
3220 const TNodeColumn* StdMeshers_PrismAsBlock::GetNodeColumn(const SMDS_MeshNode* node) const
3222 int sID = node->getshapeId();
3224 map<int, pair< TParam2ColumnMap*, bool > >::const_iterator col_frw =
3225 myShapeIndex2ColumnMap.find( sID );
3226 if ( col_frw != myShapeIndex2ColumnMap.end() ) {
3227 const TParam2ColumnMap* cols = col_frw->second.first;
3228 TParam2ColumnIt u_col = cols->begin();
3229 for ( ; u_col != cols->end(); ++u_col )
3230 if ( u_col->second[ 0 ] == node )
3231 return & u_col->second;
3236 //=======================================================================
3237 //function : GetLayersTransformation
3238 //purpose : Return transformations to get coordinates of nodes of each layer
3239 // by nodes of the bottom. Layer is a set of nodes at a certain step
3240 // from bottom to top.
3241 // Transformation to get top node from bottom ones is computed
3242 // only if the top FACE is not meshed.
3243 //=======================================================================
3245 bool StdMeshers_PrismAsBlock::GetLayersTransformation(vector<gp_Trsf> & trsf,
3246 const Prism_3D::TPrismTopo& prism) const
3248 const bool itTopMeshed = !SubMesh( ID_BOT_FACE )->IsEmpty();
3249 const int zSize = VerticalSize();
3250 if ( zSize < 3 && !itTopMeshed ) return true;
3251 trsf.resize( zSize - 1 );
3253 // Select some node columns by which we will define coordinate system of layers
3255 vector< const TNodeColumn* > columns;
3258 list< TopoDS_Edge >::const_iterator edgeIt = prism.myBottomEdges.begin();
3259 for ( int iE = 0; iE < prism.myNbEdgesInWires.front(); ++iE, ++edgeIt )
3261 if ( SMESH_Algo::isDegenerated( *edgeIt )) continue;
3262 const TParam2ColumnMap* u2colMap =
3263 GetParam2ColumnMap( MeshDS()->ShapeToIndex( *edgeIt ), isReverse );
3264 if ( !u2colMap ) return false;
3265 double f = u2colMap->begin()->first, l = u2colMap->rbegin()->first;
3266 //isReverse = ( edgeIt->Orientation() == TopAbs_REVERSED );
3267 //if ( isReverse ) swap ( f, l ); -- u2colMap takes orientation into account
3268 const int nbCol = 5;
3269 for ( int i = 0; i < nbCol; ++i )
3271 double u = f + i/double(nbCol) * ( l - f );
3272 const TNodeColumn* col = & getColumn( u2colMap, u )->second;
3273 if ( columns.empty() || col != columns.back() )
3274 columns.push_back( col );
3279 // Find tolerance to check transformations
3284 for ( int i = 0; i < columns.size(); ++i )
3285 bndBox.Add( gpXYZ( columns[i]->front() ));
3286 tol2 = bndBox.SquareExtent() * 1e-5;
3289 // Compute transformations
3292 gp_Trsf fromCsZ, toCs0;
3293 gp_Ax3 cs0 = getLayerCoordSys(0, columns, xCol );
3294 //double dist0 = cs0.Location().Distance( gpXYZ( (*columns[0])[0]));
3295 toCs0.SetTransformation( cs0 );
3296 for ( int z = 1; z < zSize; ++z )
3298 gp_Ax3 csZ = getLayerCoordSys(z, columns, xCol );
3299 //double distZ = csZ.Location().Distance( gpXYZ( (*columns[0])[z]));
3300 fromCsZ.SetTransformation( csZ );
3302 gp_Trsf& t = trsf[ z-1 ];
3303 t = fromCsZ * toCs0;
3304 //t.SetScaleFactor( distZ/dist0 ); - it does not work properly, wrong base point
3306 // check a transformation
3307 for ( int i = 0; i < columns.size(); ++i )
3309 gp_Pnt p0 = gpXYZ( (*columns[i])[0] );
3310 gp_Pnt pz = gpXYZ( (*columns[i])[z] );
3311 t.Transforms( p0.ChangeCoord() );
3312 if ( p0.SquareDistance( pz ) > tol2 )
3315 return ( z == zSize - 1 ); // OK if fails only botton->top trsf
3322 //================================================================================
3324 * \brief Check curve orientation of a bootom edge
3325 * \param meshDS - mesh DS
3326 * \param columnsMap - node columns map of side face
3327 * \param bottomEdge - the bootom edge
3328 * \param sideFaceID - side face in-block ID
3329 * \retval bool - true if orientation coinside with in-block forward orientation
3331 //================================================================================
3333 bool StdMeshers_PrismAsBlock::IsForwardEdge(SMESHDS_Mesh* meshDS,
3334 const TParam2ColumnMap& columnsMap,
3335 const TopoDS_Edge & bottomEdge,
3336 const int sideFaceID)
3338 bool isForward = false;
3339 if ( SMESH_MesherHelper::IsClosedEdge( bottomEdge ))
3341 isForward = ( bottomEdge.Orientation() == TopAbs_FORWARD );
3345 const TNodeColumn& firstCol = columnsMap.begin()->second;
3346 const SMDS_MeshNode* bottomNode = firstCol[0];
3347 TopoDS_Shape firstVertex = SMESH_MesherHelper::GetSubShapeByNode( bottomNode, meshDS );
3348 isForward = ( firstVertex.IsSame( TopExp::FirstVertex( bottomEdge, true )));
3350 // on 2 of 4 sides first vertex is end
3351 if ( sideFaceID == ID_Fx1z || sideFaceID == ID_F0yz )
3352 isForward = !isForward;
3356 //=======================================================================
3357 //function : faceGridToPythonDump
3358 //purpose : Prints a script creating a normal grid on the prism side
3359 //=======================================================================
3361 void StdMeshers_PrismAsBlock::faceGridToPythonDump(const SMESH_Block::TShapeID face,
3365 gp_XYZ pOnF[6] = { gp_XYZ(0,0,0), gp_XYZ(0,0,1),
3366 gp_XYZ(0,0,0), gp_XYZ(0,1,0),
3367 gp_XYZ(0,0,0), gp_XYZ(1,0,0) };
3369 cout << "mesh = smesh.Mesh( 'Face " << face << "')" << endl;
3370 SMESH_Block::TFace& f = myFace[ face - ID_FirstF ];
3371 gp_XYZ params = pOnF[ face - ID_FirstF ];
3372 //const int nb = 10; // nb face rows
3373 for ( int j = 0; j <= nb; ++j )
3375 params.SetCoord( f.GetVInd(), double( j )/ nb );
3376 for ( int i = 0; i <= nb; ++i )
3378 params.SetCoord( f.GetUInd(), double( i )/ nb );
3379 gp_XYZ p = f.Point( params );
3380 gp_XY uv = f.GetUV( params );
3381 cout << "mesh.AddNode( " << p.X() << ", " << p.Y() << ", " << p.Z() << " )"
3382 << " # " << 1 + i + j * ( nb + 1 )
3383 << " ( " << i << ", " << j << " ) "
3384 << " UV( " << uv.X() << ", " << uv.Y() << " )" << endl;
3385 ShellPoint( params, p2 );
3386 double dist = ( p2 - p ).Modulus();
3388 cout << "#### dist from ShellPoint " << dist
3389 << " (" << p2.X() << ", " << p2.Y() << ", " << p2.Z() << " ) " << endl;
3392 for ( int j = 0; j < nb; ++j )
3393 for ( int i = 0; i < nb; ++i )
3395 int n = 1 + i + j * ( nb + 1 );
3396 cout << "mesh.AddFace([ "
3397 << n << ", " << n+1 << ", "
3398 << n+nb+2 << ", " << n+nb+1 << "]) " << endl;
3404 //================================================================================
3406 * \brief Constructor
3407 * \param faceID - in-block ID
3408 * \param face - geom FACE
3409 * \param baseEdge - EDGE proreply oriented in the bottom EDGE !!!
3410 * \param columnsMap - map of node columns
3411 * \param first - first normalized param
3412 * \param last - last normalized param
3414 //================================================================================
3416 StdMeshers_PrismAsBlock::TSideFace::TSideFace(SMESH_Mesh& mesh,
3418 const Prism_3D::TQuadList& quadList,
3419 const TopoDS_Edge& baseEdge,
3420 TParam2ColumnMap* columnsMap,
3424 myParamToColumnMap( columnsMap ),
3427 myParams.resize( 1 );
3428 myParams[ 0 ] = make_pair( first, last );
3429 mySurface = PSurface( new BRepAdaptor_Surface( quadList.front()->face ));
3430 myBaseEdge = baseEdge;
3431 myIsForward = StdMeshers_PrismAsBlock::IsForwardEdge( myHelper.GetMeshDS(),
3432 *myParamToColumnMap,
3434 myHelper.SetSubShape( quadList.front()->face );
3436 if ( quadList.size() > 1 ) // side is vertically composite
3438 // fill myShapeID2Surf map to enable finding a right surface by any sub-shape ID
3440 SMESHDS_Mesh* meshDS = myHelper.GetMeshDS();
3442 TopTools_IndexedDataMapOfShapeListOfShape subToFaces;
3443 Prism_3D::TQuadList::const_iterator quad = quadList.begin();
3444 for ( ; quad != quadList.end(); ++quad )
3446 const TopoDS_Face& face = (*quad)->face;
3447 TopExp::MapShapesAndAncestors( face, TopAbs_VERTEX, TopAbs_FACE, subToFaces );
3448 TopExp::MapShapesAndAncestors( face, TopAbs_EDGE, TopAbs_FACE, subToFaces );
3449 myShapeID2Surf.insert( make_pair( meshDS->ShapeToIndex( face ),
3450 PSurface( new BRepAdaptor_Surface( face ))));
3452 for ( int i = 1; i <= subToFaces.Extent(); ++i )
3454 const TopoDS_Shape& sub = subToFaces.FindKey( i );
3455 TopTools_ListOfShape& faces = subToFaces( i );
3456 int subID = meshDS->ShapeToIndex( sub );
3457 int faceID = meshDS->ShapeToIndex( faces.First() );
3458 myShapeID2Surf.insert ( make_pair( subID, myShapeID2Surf[ faceID ]));
3463 //================================================================================
3465 * \brief Constructor of a complex side face
3467 //================================================================================
3469 StdMeshers_PrismAsBlock::TSideFace::
3470 TSideFace(SMESH_Mesh& mesh,
3471 const vector< TSideFace* >& components,
3472 const vector< pair< double, double> > & params)
3473 :myID( components[0] ? components[0]->myID : 0 ),
3474 myParamToColumnMap( 0 ),
3476 myIsForward( true ),
3477 myComponents( components ),
3480 if ( myID == ID_Fx1z || myID == ID_F0yz )
3482 // reverse components
3483 std::reverse( myComponents.begin(), myComponents.end() );
3484 std::reverse( myParams.begin(), myParams.end() );
3485 for ( size_t i = 0; i < myParams.size(); ++i )
3487 const double f = myParams[i].first;
3488 const double l = myParams[i].second;
3489 myParams[i] = make_pair( 1. - l, 1. - f );
3493 //================================================================================
3495 * \brief Copy constructor
3496 * \param other - other side
3498 //================================================================================
3500 StdMeshers_PrismAsBlock::TSideFace::TSideFace( const TSideFace& other ):
3501 myID ( other.myID ),
3502 myParamToColumnMap ( other.myParamToColumnMap ),
3503 mySurface ( other.mySurface ),
3504 myBaseEdge ( other.myBaseEdge ),
3505 myShapeID2Surf ( other.myShapeID2Surf ),
3506 myParams ( other.myParams ),
3507 myIsForward ( other.myIsForward ),
3508 myComponents ( other.myComponents.size() ),
3509 myHelper ( *other.myHelper.GetMesh() )
3511 for (int i = 0 ; i < myComponents.size(); ++i )
3512 myComponents[ i ] = new TSideFace( *other.myComponents[ i ]);
3515 //================================================================================
3517 * \brief Deletes myComponents
3519 //================================================================================
3521 StdMeshers_PrismAsBlock::TSideFace::~TSideFace()
3523 for (int i = 0 ; i < myComponents.size(); ++i )
3524 if ( myComponents[ i ] )
3525 delete myComponents[ i ];
3528 //================================================================================
3530 * \brief Return geometry of the vertical curve
3531 * \param isMax - true means curve located closer to (1,1,1) block point
3532 * \retval Adaptor3d_Curve* - curve adaptor
3534 //================================================================================
3536 Adaptor3d_Curve* StdMeshers_PrismAsBlock::TSideFace::VertiCurve(const bool isMax) const
3538 if ( !myComponents.empty() ) {
3540 return myComponents.back()->VertiCurve(isMax);
3542 return myComponents.front()->VertiCurve(isMax);
3544 double f = myParams[0].first, l = myParams[0].second;
3545 if ( !myIsForward ) std::swap( f, l );
3546 return new TVerticalEdgeAdaptor( myParamToColumnMap, isMax ? l : f );
3549 //================================================================================
3551 * \brief Return geometry of the top or bottom curve
3553 * \retval Adaptor3d_Curve* -
3555 //================================================================================
3557 Adaptor3d_Curve* StdMeshers_PrismAsBlock::TSideFace::HorizCurve(const bool isTop) const
3559 return new THorizontalEdgeAdaptor( this, isTop );
3562 //================================================================================
3564 * \brief Return pcurves
3565 * \param pcurv - array of 4 pcurves
3566 * \retval bool - is a success
3568 //================================================================================
3570 bool StdMeshers_PrismAsBlock::TSideFace::GetPCurves(Adaptor2d_Curve2d* pcurv[4]) const
3572 int iEdge[ 4 ] = { BOTTOM_EDGE, TOP_EDGE, V0_EDGE, V1_EDGE };
3574 for ( int i = 0 ; i < 4 ; ++i ) {
3575 Handle(Geom2d_Line) line;
3576 switch ( iEdge[ i ] ) {
3578 line = new Geom2d_Line( gp_Pnt2d( 0, 1 ), gp::DX2d() ); break;
3580 line = new Geom2d_Line( gp::Origin2d(), gp::DX2d() ); break;
3582 line = new Geom2d_Line( gp::Origin2d(), gp::DY2d() ); break;
3584 line = new Geom2d_Line( gp_Pnt2d( 1, 0 ), gp::DY2d() ); break;
3586 pcurv[ i ] = new Geom2dAdaptor_Curve( line, 0, 1 );
3591 //================================================================================
3593 * \brief Returns geometry of pcurve on a horizontal face
3594 * \param isTop - is top or bottom face
3595 * \param horFace - a horizontal face
3596 * \retval Adaptor2d_Curve2d* - curve adaptor
3598 //================================================================================
3601 StdMeshers_PrismAsBlock::TSideFace::HorizPCurve(const bool isTop,
3602 const TopoDS_Face& horFace) const
3604 return new TPCurveOnHorFaceAdaptor( this, isTop, horFace );
3607 //================================================================================
3609 * \brief Return a component corresponding to parameter
3610 * \param U - parameter along a horizontal size
3611 * \param localU - parameter along a horizontal size of a component
3612 * \retval TSideFace* - found component
3614 //================================================================================
3616 StdMeshers_PrismAsBlock::TSideFace*
3617 StdMeshers_PrismAsBlock::TSideFace::GetComponent(const double U,double & localU) const
3620 if ( myComponents.empty() )
3621 return const_cast<TSideFace*>( this );
3624 for ( i = 0; i < myComponents.size(); ++i )
3625 if ( U < myParams[ i ].second )
3627 if ( i >= myComponents.size() )
3628 i = myComponents.size() - 1;
3630 double f = myParams[ i ].first, l = myParams[ i ].second;
3631 localU = ( U - f ) / ( l - f );
3632 return myComponents[ i ];
3635 //================================================================================
3637 * \brief Find node columns for a parameter
3638 * \param U - parameter along a horizontal edge
3639 * \param col1 - the 1st found column
3640 * \param col2 - the 2nd found column
3641 * \retval r - normalized position of U between the found columns
3643 //================================================================================
3645 double StdMeshers_PrismAsBlock::TSideFace::GetColumns(const double U,
3646 TParam2ColumnIt & col1,
3647 TParam2ColumnIt & col2) const
3649 double u = U, r = 0;
3650 if ( !myComponents.empty() ) {
3651 TSideFace * comp = GetComponent(U,u);
3652 return comp->GetColumns( u, col1, col2 );
3657 double f = myParams[0].first, l = myParams[0].second;
3658 u = f + u * ( l - f );
3660 col1 = col2 = getColumn( myParamToColumnMap, u );
3661 if ( ++col2 == myParamToColumnMap->end() ) {
3666 double uf = col1->first;
3667 double ul = col2->first;
3668 r = ( u - uf ) / ( ul - uf );
3673 //================================================================================
3675 * \brief Return all nodes at a given height together with their normalized parameters
3676 * \param [in] Z - the height of interest
3677 * \param [out] nodes - map of parameter to node
3679 //================================================================================
3681 void StdMeshers_PrismAsBlock::
3682 TSideFace::GetNodesAtZ(const int Z,
3683 map<double, const SMDS_MeshNode* >& nodes ) const
3685 if ( !myComponents.empty() )
3688 for ( size_t i = 0; i < myComponents.size(); ++i )
3690 map<double, const SMDS_MeshNode* > nn;
3691 myComponents[i]->GetNodesAtZ( Z, nn );
3692 map<double, const SMDS_MeshNode* >::iterator u2n = nn.begin();
3693 if ( !nodes.empty() && nodes.rbegin()->second == u2n->second )
3695 const double uRange = myParams[i].second - myParams[i].first;
3696 for ( ; u2n != nn.end(); ++u2n )
3697 nodes.insert( nodes.end(), make_pair( u0 + uRange * u2n->first, u2n->second ));
3703 double f = myParams[0].first, l = myParams[0].second;
3706 const double uRange = l - f;
3707 if ( Abs( uRange ) < std::numeric_limits<double>::min() )
3709 TParam2ColumnIt u2col = getColumn( myParamToColumnMap, myParams[0].first + 1e-3 );
3710 for ( ; u2col != myParamToColumnMap->end(); ++u2col )
3711 if ( u2col->first > myParams[0].second + 1e-9 )
3714 nodes.insert( nodes.end(),
3715 make_pair( ( u2col->first - f ) / uRange, u2col->second[ Z ] ));
3719 //================================================================================
3721 * \brief Return coordinates by normalized params
3722 * \param U - horizontal param
3723 * \param V - vertical param
3724 * \retval gp_Pnt - result point
3726 //================================================================================
3728 gp_Pnt StdMeshers_PrismAsBlock::TSideFace::Value(const Standard_Real U,
3729 const Standard_Real V) const
3731 if ( !myComponents.empty() ) {
3733 TSideFace * comp = GetComponent(U,u);
3734 return comp->Value( u, V );
3737 TParam2ColumnIt u_col1, u_col2;
3738 double vR, hR = GetColumns( U, u_col1, u_col2 );
3740 const SMDS_MeshNode* nn[4];
3742 // BEGIN issue 0020680: Bad cell created by Radial prism in center of torus
3743 // Workaround for a wrongly located point returned by mySurface.Value() for
3744 // UV located near boundary of BSpline surface.
3745 // To bypass the problem, we take point from 3D curve of EDGE.
3746 // It solves pb of the bloc_fiss_new.py
3747 const double tol = 1e-3;
3748 if ( V < tol || V+tol >= 1. )
3750 nn[0] = V < tol ? u_col1->second.front() : u_col1->second.back();
3751 nn[2] = V < tol ? u_col2->second.front() : u_col2->second.back();
3759 TopoDS_Shape s = myHelper.GetSubShapeByNode( nn[0], myHelper.GetMeshDS() );
3760 if ( s.ShapeType() != TopAbs_EDGE )
3761 s = myHelper.GetSubShapeByNode( nn[2], myHelper.GetMeshDS() );
3762 if ( s.ShapeType() == TopAbs_EDGE )
3763 edge = TopoDS::Edge( s );
3765 if ( !edge.IsNull() )
3767 double u1 = myHelper.GetNodeU( edge, nn[0], nn[2] );
3768 double u3 = myHelper.GetNodeU( edge, nn[2], nn[0] );
3769 double u = u1 * ( 1 - hR ) + u3 * hR;
3770 TopLoc_Location loc; double f,l;
3771 Handle(Geom_Curve) curve = BRep_Tool::Curve( edge,loc,f,l );
3772 return curve->Value( u ).Transformed( loc );
3775 // END issue 0020680: Bad cell created by Radial prism in center of torus
3777 vR = getRAndNodes( & u_col1->second, V, nn[0], nn[1] );
3778 vR = getRAndNodes( & u_col2->second, V, nn[2], nn[3] );
3780 if ( !myShapeID2Surf.empty() ) // side is vertically composite
3782 // find a FACE on which the 4 nodes lie
3783 TSideFace* me = (TSideFace*) this;
3784 int notFaceID1 = 0, notFaceID2 = 0;
3785 for ( int i = 0; i < 4; ++i )
3786 if ( nn[i]->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE ) // node on FACE
3788 me->mySurface = me->myShapeID2Surf[ nn[i]->getshapeId() ];
3792 else if ( notFaceID1 == 0 ) // node on EDGE or VERTEX
3794 me->mySurface = me->myShapeID2Surf[ nn[i]->getshapeId() ];
3795 notFaceID1 = nn[i]->getshapeId();
3797 else if ( notFaceID1 != nn[i]->getshapeId() ) // node on other EDGE or VERTEX
3799 if ( mySurface != me->myShapeID2Surf[ nn[i]->getshapeId() ])
3800 notFaceID2 = nn[i]->getshapeId();
3802 if ( notFaceID2 ) // no nodes of FACE and nodes are on different FACEs
3804 SMESHDS_Mesh* meshDS = myHelper.GetMeshDS();
3805 TopoDS_Shape face = myHelper.GetCommonAncestor( meshDS->IndexToShape( notFaceID1 ),
3806 meshDS->IndexToShape( notFaceID2 ),
3807 *myHelper.GetMesh(),
3809 if ( face.IsNull() )
3810 throw SALOME_Exception("StdMeshers_PrismAsBlock::TSideFace::Value() face.IsNull()");
3811 int faceID = meshDS->ShapeToIndex( face );
3812 me->mySurface = me->myShapeID2Surf[ faceID ];
3814 throw SALOME_Exception("StdMeshers_PrismAsBlock::TSideFace::Value() !mySurface");
3817 ((TSideFace*) this)->myHelper.SetSubShape( mySurface->Face() );
3819 gp_XY uv1 = myHelper.GetNodeUV( mySurface->Face(), nn[0], nn[2]);
3820 gp_XY uv2 = myHelper.GetNodeUV( mySurface->Face(), nn[1], nn[3]);
3821 gp_XY uv12 = uv1 * ( 1 - vR ) + uv2 * vR;
3823 gp_XY uv3 = myHelper.GetNodeUV( mySurface->Face(), nn[2], nn[0]);
3824 gp_XY uv4 = myHelper.GetNodeUV( mySurface->Face(), nn[3], nn[1]);
3825 gp_XY uv34 = uv3 * ( 1 - vR ) + uv4 * vR;
3827 gp_XY uv = uv12 * ( 1 - hR ) + uv34 * hR;
3829 gp_Pnt p = mySurface->Value( uv.X(), uv.Y() );
3834 //================================================================================
3836 * \brief Return boundary edge
3837 * \param edge - edge index
3838 * \retval TopoDS_Edge - found edge
3840 //================================================================================
3842 TopoDS_Edge StdMeshers_PrismAsBlock::TSideFace::GetEdge(const int iEdge) const
3844 if ( !myComponents.empty() ) {
3846 case V0_EDGE : return myComponents.front()->GetEdge( iEdge );
3847 case V1_EDGE : return myComponents.back() ->GetEdge( iEdge );
3848 default: return TopoDS_Edge();
3852 const SMDS_MeshNode* node = 0;
3853 SMESHDS_Mesh * meshDS = myHelper.GetMesh()->GetMeshDS();
3854 TNodeColumn* column;
3859 column = & (( ++myParamToColumnMap->begin())->second );
3860 node = ( iEdge == TOP_EDGE ) ? column->back() : column->front();
3861 edge = myHelper.GetSubShapeByNode ( node, meshDS );
3862 if ( edge.ShapeType() == TopAbs_VERTEX ) {
3863 column = & ( myParamToColumnMap->begin()->second );
3864 node = ( iEdge == TOP_EDGE ) ? column->back() : column->front();
3869 bool back = ( iEdge == V1_EDGE );
3870 if ( !myIsForward ) back = !back;
3872 column = & ( myParamToColumnMap->rbegin()->second );
3874 column = & ( myParamToColumnMap->begin()->second );
3875 if ( column->size() > 0 )
3876 edge = myHelper.GetSubShapeByNode( (*column)[ 1 ], meshDS );
3877 if ( edge.IsNull() || edge.ShapeType() == TopAbs_VERTEX )
3878 node = column->front();
3883 if ( !edge.IsNull() && edge.ShapeType() == TopAbs_EDGE )
3884 return TopoDS::Edge( edge );
3886 // find edge by 2 vertices
3887 TopoDS_Shape V1 = edge;
3888 TopoDS_Shape V2 = myHelper.GetSubShapeByNode( node, meshDS );
3889 if ( !V2.IsNull() && V2.ShapeType() == TopAbs_VERTEX && !V2.IsSame( V1 ))
3891 TopoDS_Shape ancestor = myHelper.GetCommonAncestor( V1, V2, *myHelper.GetMesh(), TopAbs_EDGE);
3892 if ( !ancestor.IsNull() )
3893 return TopoDS::Edge( ancestor );
3895 return TopoDS_Edge();
3898 //================================================================================
3900 * \brief Fill block sub-shapes
3901 * \param shapeMap - map to fill in
3902 * \retval int - nb inserted sub-shapes
3904 //================================================================================
3906 int StdMeshers_PrismAsBlock::TSideFace::InsertSubShapes(TBlockShapes& shapeMap) const
3911 vector< int > edgeIdVec;
3912 SMESH_Block::GetFaceEdgesIDs( myID, edgeIdVec );
3914 for ( int i = BOTTOM_EDGE; i <=V1_EDGE ; ++i ) {
3915 TopoDS_Edge e = GetEdge( i );
3916 if ( !e.IsNull() ) {
3917 nbInserted += SMESH_Block::Insert( e, edgeIdVec[ i ], shapeMap);
3921 // Insert corner vertices
3923 TParam2ColumnIt col1, col2 ;
3924 vector< int > vertIdVec;
3927 SMESH_Block::GetEdgeVertexIDs( edgeIdVec[ V0_EDGE ], vertIdVec);
3928 GetColumns(0, col1, col2 );
3929 const SMDS_MeshNode* node0 = col1->second.front();
3930 const SMDS_MeshNode* node1 = col1->second.back();
3931 TopoDS_Shape v0 = myHelper.GetSubShapeByNode( node0, myHelper.GetMeshDS());
3932 TopoDS_Shape v1 = myHelper.GetSubShapeByNode( node1, myHelper.GetMeshDS());
3933 if ( v0.ShapeType() == TopAbs_VERTEX ) {
3934 nbInserted += SMESH_Block::Insert( v0, vertIdVec[ 0 ], shapeMap);
3936 if ( v1.ShapeType() == TopAbs_VERTEX ) {
3937 nbInserted += SMESH_Block::Insert( v1, vertIdVec[ 1 ], shapeMap);
3941 SMESH_Block::GetEdgeVertexIDs( edgeIdVec[ V1_EDGE ], vertIdVec);
3942 GetColumns(1, col1, col2 );
3943 node0 = col2->second.front();
3944 node1 = col2->second.back();
3945 v0 = myHelper.GetSubShapeByNode( node0, myHelper.GetMeshDS());
3946 v1 = myHelper.GetSubShapeByNode( node1, myHelper.GetMeshDS());
3947 if ( v0.ShapeType() == TopAbs_VERTEX ) {
3948 nbInserted += SMESH_Block::Insert( v0, vertIdVec[ 0 ], shapeMap);
3950 if ( v1.ShapeType() == TopAbs_VERTEX ) {
3951 nbInserted += SMESH_Block::Insert( v1, vertIdVec[ 1 ], shapeMap);
3954 // TopoDS_Vertex V0, V1, Vcom;
3955 // TopExp::Vertices( myBaseEdge, V0, V1, true );
3956 // if ( !myIsForward ) std::swap( V0, V1 );
3958 // // bottom vertex IDs
3959 // SMESH_Block::GetEdgeVertexIDs( edgeIdVec[ _u0 ], vertIdVec);
3960 // SMESH_Block::Insert( V0, vertIdVec[ 0 ], shapeMap);
3961 // SMESH_Block::Insert( V1, vertIdVec[ 1 ], shapeMap);
3963 // TopoDS_Edge sideEdge = GetEdge( V0_EDGE );
3964 // if ( sideEdge.IsNull() || !TopExp::CommonVertex( botEdge, sideEdge, Vcom ))
3967 // // insert one side edge
3969 // if ( Vcom.IsSame( V0 )) edgeID = edgeIdVec[ _v0 ];
3970 // else edgeID = edgeIdVec[ _v1 ];
3971 // SMESH_Block::Insert( sideEdge, edgeID, shapeMap);
3973 // // top vertex of the side edge
3974 // SMESH_Block::GetEdgeVertexIDs( edgeID, vertIdVec);
3975 // TopoDS_Vertex Vtop = TopExp::FirstVertex( sideEdge );
3976 // if ( Vcom.IsSame( Vtop ))
3977 // Vtop = TopExp::LastVertex( sideEdge );
3978 // SMESH_Block::Insert( Vtop, vertIdVec[ 1 ], shapeMap);
3980 // // other side edge
3981 // sideEdge = GetEdge( V1_EDGE );
3982 // if ( sideEdge.IsNull() )
3984 // if ( edgeID = edgeIdVec[ _v1 ]) edgeID = edgeIdVec[ _v0 ];
3985 // else edgeID = edgeIdVec[ _v1 ];
3986 // SMESH_Block::Insert( sideEdge, edgeID, shapeMap);
3989 // TopoDS_Edge topEdge = GetEdge( TOP_EDGE );
3990 // SMESH_Block::Insert( topEdge, edgeIdVec[ _u1 ], shapeMap);
3992 // // top vertex of the other side edge
3993 // if ( !TopExp::CommonVertex( topEdge, sideEdge, Vcom ))
3995 // SMESH_Block::GetEdgeVertexIDs( edgeID, vertIdVec );
3996 // SMESH_Block::Insert( Vcom, vertIdVec[ 1 ], shapeMap);
4001 //================================================================================
4003 * \brief Dump ids of nodes of sides
4005 //================================================================================
4007 void StdMeshers_PrismAsBlock::TSideFace::dumpNodes(int nbNodes) const
4010 cout << endl << "NODES OF FACE "; SMESH_Block::DumpShapeID( myID, cout ) << endl;
4011 THorizontalEdgeAdaptor* hSize0 = (THorizontalEdgeAdaptor*) HorizCurve(0);
4012 cout << "Horiz side 0: "; hSize0->dumpNodes(nbNodes); cout << endl;
4013 THorizontalEdgeAdaptor* hSize1 = (THorizontalEdgeAdaptor*) HorizCurve(1);
4014 cout << "Horiz side 1: "; hSize1->dumpNodes(nbNodes); cout << endl;
4015 TVerticalEdgeAdaptor* vSide0 = (TVerticalEdgeAdaptor*) VertiCurve(0);
4016 cout << "Verti side 0: "; vSide0->dumpNodes(nbNodes); cout << endl;
4017 TVerticalEdgeAdaptor* vSide1 = (TVerticalEdgeAdaptor*) VertiCurve(1);
4018 cout << "Verti side 1: "; vSide1->dumpNodes(nbNodes); cout << endl;
4019 delete hSize0; delete hSize1; delete vSide0; delete vSide1;
4023 //================================================================================
4025 * \brief Creates TVerticalEdgeAdaptor
4026 * \param columnsMap - node column map
4027 * \param parameter - normalized parameter
4029 //================================================================================
4031 StdMeshers_PrismAsBlock::TVerticalEdgeAdaptor::
4032 TVerticalEdgeAdaptor( const TParam2ColumnMap* columnsMap, const double parameter)
4034 myNodeColumn = & getColumn( columnsMap, parameter )->second;
4037 //================================================================================
4039 * \brief Return coordinates for the given normalized parameter
4040 * \param U - normalized parameter
4041 * \retval gp_Pnt - coordinates
4043 //================================================================================
4045 gp_Pnt StdMeshers_PrismAsBlock::TVerticalEdgeAdaptor::Value(const Standard_Real U) const
4047 const SMDS_MeshNode* n1;
4048 const SMDS_MeshNode* n2;
4049 double r = getRAndNodes( myNodeColumn, U, n1, n2 );
4050 return gpXYZ(n1) * ( 1 - r ) + gpXYZ(n2) * r;
4053 //================================================================================
4055 * \brief Dump ids of nodes
4057 //================================================================================
4059 void StdMeshers_PrismAsBlock::TVerticalEdgeAdaptor::dumpNodes(int nbNodes) const
4062 for ( int i = 0; i < nbNodes && i < myNodeColumn->size(); ++i )
4063 cout << (*myNodeColumn)[i]->GetID() << " ";
4064 if ( nbNodes < myNodeColumn->size() )
4065 cout << myNodeColumn->back()->GetID();
4069 //================================================================================
4071 * \brief Return coordinates for the given normalized parameter
4072 * \param U - normalized parameter
4073 * \retval gp_Pnt - coordinates
4075 //================================================================================
4077 gp_Pnt StdMeshers_PrismAsBlock::THorizontalEdgeAdaptor::Value(const Standard_Real U) const
4079 return mySide->TSideFace::Value( U, myV );
4082 //================================================================================
4084 * \brief Dump ids of <nbNodes> first nodes and the last one
4086 //================================================================================
4088 void StdMeshers_PrismAsBlock::THorizontalEdgeAdaptor::dumpNodes(int nbNodes) const
4091 // Not bedugged code. Last node is sometimes incorrect
4092 const TSideFace* side = mySide;
4094 if ( mySide->IsComplex() )
4095 side = mySide->GetComponent(0,u);
4097 TParam2ColumnIt col, col2;
4098 TParam2ColumnMap* u2cols = side->GetColumns();
4099 side->GetColumns( u , col, col2 );
4101 int j, i = myV ? mySide->ColumnHeight()-1 : 0;
4103 const SMDS_MeshNode* n = 0;
4104 const SMDS_MeshNode* lastN
4105 = side->IsForward() ? u2cols->rbegin()->second[ i ] : u2cols->begin()->second[ i ];
4106 for ( j = 0; j < nbNodes && n != lastN; ++j )
4108 n = col->second[ i ];
4109 cout << n->GetID() << " ";
4110 if ( side->IsForward() )
4118 if ( mySide->IsComplex() )
4119 side = mySide->GetComponent(1,u);
4121 side->GetColumns( u , col, col2 );
4122 if ( n != col->second[ i ] )
4123 cout << col->second[ i ]->GetID();
4127 //================================================================================
4129 * \brief Costructor of TPCurveOnHorFaceAdaptor fills its map of
4130 * normalized parameter to node UV on a horizontal face
4131 * \param [in] sideFace - lateral prism side
4132 * \param [in] isTop - is \a horFace top or bottom of the prism
4133 * \param [in] horFace - top or bottom face of the prism
4135 //================================================================================
4137 StdMeshers_PrismAsBlock::
4138 TPCurveOnHorFaceAdaptor::TPCurveOnHorFaceAdaptor( const TSideFace* sideFace,
4140 const TopoDS_Face& horFace)
4142 if ( sideFace && !horFace.IsNull() )
4144 //cout << "\n\t FACE " << sideFace->FaceID() << endl;
4145 const int Z = isTop ? sideFace->ColumnHeight() - 1 : 0;
4146 map<double, const SMDS_MeshNode* > u2nodes;
4147 sideFace->GetNodesAtZ( Z, u2nodes );
4148 if ( u2nodes.empty() )
4151 SMESH_MesherHelper helper( *sideFace->GetMesh() );
4152 helper.SetSubShape( horFace );
4157 Handle(Geom2d_Curve) C2d;
4159 const double tol = 10 * helper.MaxTolerance( horFace );
4160 const SMDS_MeshNode* prevNode = u2nodes.rbegin()->second;
4162 map<double, const SMDS_MeshNode* >::iterator u2n = u2nodes.begin();
4163 for ( ; u2n != u2nodes.end(); ++u2n )
4165 const SMDS_MeshNode* n = u2n->second;
4167 if ( n->GetPosition()->GetTypeOfPosition() == SMDS_TOP_EDGE )
4169 if ( n->getshapeId() != edgeID )
4172 edgeID = n->getshapeId();
4173 TopoDS_Shape S = helper.GetSubShapeByNode( n, helper.GetMeshDS() );
4174 if ( !S.IsNull() && S.ShapeType() == TopAbs_EDGE )
4176 C2d = BRep_Tool::CurveOnSurface( TopoDS::Edge( S ), horFace, f,l );
4179 if ( !C2d.IsNull() )
4181 double u = static_cast< const SMDS_EdgePosition* >( n->GetPosition() )->GetUParameter();
4182 if ( f <= u && u <= l )
4184 uv = C2d->Value( u ).XY();
4185 okUV = helper.CheckNodeUV( horFace, n, uv, tol );
4190 uv = helper.GetNodeUV( horFace, n, prevNode, &okUV );
4192 myUVmap.insert( myUVmap.end(), make_pair( u2n->first, uv ));
4193 // cout << n->getshapeId() << " N " << n->GetID()
4194 // << " \t" << uv.X() << ", " << uv.Y() << " \t" << u2n->first << endl;
4201 //================================================================================
4203 * \brief Return UV on pcurve for the given normalized parameter
4204 * \param U - normalized parameter
4205 * \retval gp_Pnt - coordinates
4207 //================================================================================
4209 gp_Pnt2d StdMeshers_PrismAsBlock::TPCurveOnHorFaceAdaptor::Value(const Standard_Real U) const
4211 map< double, gp_XY >::const_iterator i1 = myUVmap.upper_bound( U );
4213 if ( i1 == myUVmap.end() )
4214 return myUVmap.empty() ? gp_XY(0,0) : myUVmap.rbegin()->second;
4216 if ( i1 == myUVmap.begin() )
4217 return (*i1).second;
4219 map< double, gp_XY >::const_iterator i2 = i1--;
4221 double r = ( U - i1->first ) / ( i2->first - i1->first );
4222 return i1->second * ( 1 - r ) + i2->second * r;