1 // Copyright (C) 2007-2014 CEA/DEN, EDF R&D, OPEN CASCADE
3 // Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
6 // This library is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU Lesser General Public
8 // License as published by the Free Software Foundation; either
9 // version 2.1 of the License, or (at your option) any later version.
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // Lesser General Public License for more details.
16 // You should have received a copy of the GNU Lesser General Public
17 // License along with this library; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
23 // File : StdMeshers_Prism_3D.cxx
25 // Created : Fri Oct 20 11:37:07 2006
26 // Author : Edward AGAPOV (eap)
28 #include "StdMeshers_Prism_3D.hxx"
30 #include "SMDS_EdgePosition.hxx"
31 #include "SMDS_VolumeOfNodes.hxx"
32 #include "SMDS_VolumeTool.hxx"
33 #include "SMESH_Comment.hxx"
34 #include "SMESH_Gen.hxx"
35 #include "SMESH_HypoFilter.hxx"
36 #include "SMESH_MesherHelper.hxx"
37 #include "StdMeshers_FaceSide.hxx"
38 #include "StdMeshers_ProjectionSource1D.hxx"
39 #include "StdMeshers_ProjectionSource2D.hxx"
40 #include "StdMeshers_ProjectionUtils.hxx"
41 #include "StdMeshers_Projection_1D.hxx"
42 #include "StdMeshers_Projection_1D2D.hxx"
43 #include "StdMeshers_Quadrangle_2D.hxx"
45 #include "utilities.h"
47 #include <BRepAdaptor_CompCurve.hxx>
48 #include <BRep_Tool.hxx>
49 #include <Bnd_B3d.hxx>
50 #include <Geom2dAdaptor_Curve.hxx>
51 #include <Geom2d_Line.hxx>
52 #include <Geom_Curve.hxx>
54 #include <TopExp_Explorer.hxx>
55 #include <TopTools_ListIteratorOfListOfShape.hxx>
56 #include <TopTools_ListOfShape.hxx>
57 #include <TopTools_MapOfShape.hxx>
58 #include <TopTools_SequenceOfShape.hxx>
67 #define RETURN_BAD_RESULT(msg) { MESSAGE(")-: Error: " << msg); return false; }
68 #define gpXYZ(n) gp_XYZ(n->X(),n->Y(),n->Z())
69 #define SHOWYXZ(msg, xyz) // {\
71 // cout << msg << " ("<< p.X() << "; " <<p.Y() << "; " <<p.Z() << ") " <<endl;\
74 #define DBGOUT(msg) //cout << msg << endl;
79 namespace TAssocTool = StdMeshers_ProjectionUtils;
81 typedef SMESH_Comment TCom;
83 enum { ID_BOT_FACE = SMESH_Block::ID_Fxy0,
84 ID_TOP_FACE = SMESH_Block::ID_Fxy1,
85 BOTTOM_EDGE = 0, TOP_EDGE, V0_EDGE, V1_EDGE, // edge IDs in face
86 NB_WALL_FACES = 4 }; //
90 //=======================================================================
92 * \brief Quadrangle algorithm
94 struct TQuadrangleAlgo : public StdMeshers_Quadrangle_2D
96 TQuadrangleAlgo(int studyId, SMESH_Gen* gen)
97 : StdMeshers_Quadrangle_2D( gen->GetANewId(), studyId, gen)
100 static StdMeshers_Quadrangle_2D* instance( SMESH_Algo* fatherAlgo,
101 SMESH_MesherHelper* helper=0)
103 static TQuadrangleAlgo* algo = new TQuadrangleAlgo( fatherAlgo->GetStudyId(),
104 fatherAlgo->GetGen() );
107 algo->myProxyMesh->GetMesh() != helper->GetMesh() )
108 algo->myProxyMesh.reset( new SMESH_ProxyMesh( *helper->GetMesh() ));
110 algo->myQuadList.clear();
113 algo->_quadraticMesh = helper->GetIsQuadratic();
118 //=======================================================================
120 * \brief Algorithm projecting 1D mesh
122 struct TProjction1dAlgo : public StdMeshers_Projection_1D
124 StdMeshers_ProjectionSource1D myHyp;
126 TProjction1dAlgo(int studyId, SMESH_Gen* gen)
127 : StdMeshers_Projection_1D( gen->GetANewId(), studyId, gen),
128 myHyp( gen->GetANewId(), studyId, gen)
130 StdMeshers_Projection_1D::_sourceHypo = & myHyp;
132 static TProjction1dAlgo* instance( SMESH_Algo* fatherAlgo )
134 static TProjction1dAlgo* algo = new TProjction1dAlgo( fatherAlgo->GetStudyId(),
135 fatherAlgo->GetGen() );
139 //=======================================================================
141 * \brief Algorithm projecting 2D mesh
143 struct TProjction2dAlgo : public StdMeshers_Projection_1D2D
145 StdMeshers_ProjectionSource2D myHyp;
147 TProjction2dAlgo(int studyId, SMESH_Gen* gen)
148 : StdMeshers_Projection_1D2D( gen->GetANewId(), studyId, gen),
149 myHyp( gen->GetANewId(), studyId, gen)
151 StdMeshers_Projection_2D::_sourceHypo = & myHyp;
153 static TProjction2dAlgo* instance( SMESH_Algo* fatherAlgo )
155 static TProjction2dAlgo* algo = new TProjction2dAlgo( fatherAlgo->GetStudyId(),
156 fatherAlgo->GetGen() );
160 //=======================================================================
162 * \brief Returns already computed EDGEs
164 void getPrecomputedEdges( SMESH_MesherHelper& theHelper,
165 const TopoDS_Shape& theShape,
166 vector< TopoDS_Edge >& theEdges)
170 SMESHDS_Mesh* meshDS = theHelper.GetMeshDS();
173 TopTools_IndexedMapOfShape edges;
174 TopExp::MapShapes( theShape, TopAbs_EDGE, edges );
175 for ( int iE = 1; iE <= edges.Extent(); ++iE )
177 const TopoDS_Shape edge = edges( iE );
178 if (( ! ( sm = meshDS->MeshElements( edge ))) ||
179 ( sm->NbElements() == 0 ))
182 // there must not be FACEs meshed with triangles and sharing a computed EDGE
183 // as the precomputed EDGEs are used for propagation other to 'vertical' EDGEs
184 bool faceFound = false;
185 PShapeIteratorPtr faceIt =
186 theHelper.GetAncestors( edge, *theHelper.GetMesh(), TopAbs_FACE );
187 while ( const TopoDS_Shape* face = faceIt->next() )
189 if (( sm = meshDS->MeshElements( *face )) &&
190 ( sm->NbElements() > 0 ) &&
191 ( !theHelper.IsSameElemGeometry( sm, SMDSGeom_QUADRANGLE ) ))
197 theEdges.push_back( TopoDS::Edge( edge ));
201 //================================================================================
203 * \brief Make \a botE be the BOTTOM_SIDE of \a quad.
204 * Return false if the BOTTOM_SIDE is composite
206 //================================================================================
208 bool setBottomEdge( const TopoDS_Edge& botE,
209 FaceQuadStruct::Ptr& quad,
210 const TopoDS_Shape& face)
212 quad->side[ QUAD_TOP_SIDE ].grid->Reverse();
213 quad->side[ QUAD_LEFT_SIDE ].grid->Reverse();
215 bool isComposite = false;
216 for ( size_t i = 0; i < quad->side.size(); ++i )
218 StdMeshers_FaceSidePtr quadSide = quad->side[i];
219 for ( int iE = 0; iE < quadSide->NbEdges(); ++iE )
220 if ( botE.IsSame( quadSide->Edge( iE )))
222 if ( quadSide->NbEdges() > 1 )
223 isComposite = true; //return false;
225 i = quad->side.size(); // to quit from the outer loop
229 if ( edgeIndex != QUAD_BOTTOM_SIDE )
230 quad->shift( quad->side.size() - edgeIndex, /*keepUnitOri=*/false );
232 quad->face = TopoDS::Face( face );
237 //================================================================================
239 * \brief Return iterator pointing to node column for the given parameter
240 * \param columnsMap - node column map
241 * \param parameter - parameter
242 * \retval TParam2ColumnMap::iterator - result
244 * it returns closest left column
246 //================================================================================
248 TParam2ColumnIt getColumn( const TParam2ColumnMap* columnsMap,
249 const double parameter )
251 TParam2ColumnIt u_col = columnsMap->upper_bound( parameter );
252 if ( u_col != columnsMap->begin() )
254 return u_col; // return left column
257 //================================================================================
259 * \brief Return nodes around given parameter and a ratio
260 * \param column - node column
261 * \param param - parameter
262 * \param node1 - lower node
263 * \param node2 - upper node
264 * \retval double - ratio
266 //================================================================================
268 double getRAndNodes( const TNodeColumn* column,
270 const SMDS_MeshNode* & node1,
271 const SMDS_MeshNode* & node2)
273 if ( param >= 1.0 || column->size() == 1) {
274 node1 = node2 = column->back();
278 int i = int( param * ( column->size() - 1 ));
279 double u0 = double( i )/ double( column->size() - 1 );
280 double r = ( param - u0 ) * ( column->size() - 1 );
282 node1 = (*column)[ i ];
283 node2 = (*column)[ i + 1];
287 //================================================================================
289 * \brief Compute boundary parameters of face parts
290 * \param nbParts - nb of parts to split columns into
291 * \param columnsMap - node columns of the face to split
292 * \param params - computed parameters
294 //================================================================================
296 void splitParams( const int nbParts,
297 const TParam2ColumnMap* columnsMap,
298 vector< double > & params)
301 params.reserve( nbParts + 1 );
302 TParam2ColumnIt last_par_col = --columnsMap->end();
303 double par = columnsMap->begin()->first; // 0.
304 double parLast = last_par_col->first;
305 params.push_back( par );
306 for ( int i = 0; i < nbParts - 1; ++ i )
308 double partSize = ( parLast - par ) / double ( nbParts - i );
309 TParam2ColumnIt par_col = getColumn( columnsMap, par + partSize );
310 if ( par_col->first == par ) {
312 if ( par_col == last_par_col ) {
313 while ( i < nbParts - 1 )
314 params.push_back( par + partSize * i++ );
318 par = par_col->first;
319 params.push_back( par );
321 params.push_back( parLast ); // 1.
324 //================================================================================
326 * \brief Return coordinate system for z-th layer of nodes
328 //================================================================================
330 gp_Ax2 getLayerCoordSys(const int z,
331 const vector< const TNodeColumn* >& columns,
334 // gravity center of a layer
337 for ( int i = 0; i < columns.size(); ++i )
339 O += gpXYZ( (*columns[ i ])[ z ]);
340 if ( vertexCol < 0 &&
341 columns[ i ]->front()->GetPosition()->GetTypeOfPosition() == SMDS_TOP_VERTEX )
348 int iPrev = columns.size()-1;
349 for ( int i = 0; i < columns.size(); ++i )
351 gp_Vec v1( O, gpXYZ( (*columns[ iPrev ])[ z ]));
352 gp_Vec v2( O, gpXYZ( (*columns[ i ] )[ z ]));
357 if ( vertexCol >= 0 )
359 O = gpXYZ( (*columns[ vertexCol ])[ z ]);
361 if ( xColumn < 0 || xColumn >= columns.size() )
363 // select a column for X dir
365 for ( int i = 0; i < columns.size(); ++i )
367 double dist = ( O - gpXYZ((*columns[ i ])[ z ])).SquareModulus();
368 if ( dist > maxDist )
377 gp_Vec X( O, gpXYZ( (*columns[ xColumn ])[ z ]));
379 return gp_Ax2( O, Z, X);
382 //================================================================================
384 * \brief Removes submeshes that are or can be meshed with regular grid from given list
385 * \retval int - nb of removed submeshes
387 //================================================================================
389 int removeQuasiQuads(list< SMESH_subMesh* >& notQuadSubMesh,
390 SMESH_MesherHelper* helper,
391 StdMeshers_Quadrangle_2D* quadAlgo)
394 //SMESHDS_Mesh* mesh = notQuadSubMesh.front()->GetFather()->GetMeshDS();
395 list< SMESH_subMesh* >::iterator smIt = notQuadSubMesh.begin();
396 while ( smIt != notQuadSubMesh.end() )
398 SMESH_subMesh* faceSm = *smIt;
399 SMESHDS_SubMesh* faceSmDS = faceSm->GetSubMeshDS();
400 int nbQuads = faceSmDS ? faceSmDS->NbElements() : 0;
403 toRemove = helper->IsStructured( faceSm );
405 toRemove = quadAlgo->CheckNbEdges( *helper->GetMesh(),
406 faceSm->GetSubShape() );
407 nbRemoved += toRemove;
409 smIt = notQuadSubMesh.erase( smIt );
417 //================================================================================
419 * \brief Return and angle between two EDGEs
420 * \return double - the angle normalized so that
427 //================================================================================
429 double normAngle(const TopoDS_Edge & E1, const TopoDS_Edge & E2, const TopoDS_Face & F)
431 return SMESH_MesherHelper::GetAngle( E1, E2, F ) / ( 0.5 * M_PI );
434 //================================================================================
436 * Consider continuous straight EDGES as one side - mark them to unite
438 //================================================================================
440 int countNbSides( const Prism_3D::TPrismTopo & thePrism,
441 vector<int> & nbUnitePerEdge,
442 vector< double > & edgeLength)
444 int nbEdges = thePrism.myNbEdgesInWires.front(); // nb outer edges
445 int nbSides = nbEdges;
448 list< TopoDS_Edge >::const_iterator edgeIt = thePrism.myBottomEdges.begin();
449 std::advance( edgeIt, nbEdges-1 );
450 TopoDS_Edge prevE = *edgeIt;
451 // bool isPrevStraight = SMESH_Algo::IsStraight( prevE );
452 int iPrev = nbEdges - 1;
454 int iUnite = -1; // the first of united EDGEs
456 // analyse angles between EDGEs
458 vector< bool > isCorner( nbEdges );
459 edgeIt = thePrism.myBottomEdges.begin();
460 for ( int iE = 0; iE < nbEdges; ++iE, ++edgeIt )
462 const TopoDS_Edge& curE = *edgeIt;
463 edgeLength[ iE ] = SMESH_Algo::EdgeLength( curE );
465 // double normAngle = normAngle( prevE, curE, thePrism.myBottom );
466 // isCorner[ iE ] = false;
467 // if ( normAngle < 2.0 )
469 // if ( normAngle < 0.001 ) // straight or obtuse angle
471 // // unite EDGEs in order not to put a corner of the unit quadrangle at this VERTEX
474 // nbUnitePerEdge[ iUnite ]++;
475 // nbUnitePerEdge[ iE ] = -1;
480 // isCorner[ iE ] = true;
490 // define which of corners to put on a side of the unit quadrangle
492 // edgeIt = thePrism.myBottomEdges.begin();
493 // for ( int iE = 0; iE < nbEdges; ++iE, ++edgeIt )
495 // const TopoDS_Edge& curE = *edgeIt;
496 // edgeLength[ iE ] = SMESH_Algo::EdgeLength( curE );
498 // const bool isCurStraight = SMESH_Algo::IsStraight( curE );
499 // if ( isPrevStraight && isCurStraight && SMESH_Algo::IsContinuous( prevE, curE ))
503 // nbUnitePerEdge[ iUnite ]++;
504 // nbUnitePerEdge[ iE ] = -1;
512 // isPrevStraight = isCurStraight;
519 void pointsToPython(const std::vector<gp_XYZ>& p)
522 for ( int i = SMESH_Block::ID_V000; i < p.size(); ++i )
524 cout << "mesh.AddNode( " << p[i].X() << ", "<< p[i].Y() << ", "<< p[i].Z() << ") # " << i <<" " ;
525 SMESH_Block::DumpShapeID( i, cout ) << endl;
531 //=======================================================================
532 //function : StdMeshers_Prism_3D
534 //=======================================================================
536 StdMeshers_Prism_3D::StdMeshers_Prism_3D(int hypId, int studyId, SMESH_Gen* gen)
537 :SMESH_3D_Algo(hypId, studyId, gen)
540 _shapeType = (1 << TopAbs_SOLID); // 1 bit per shape type
541 _onlyUnaryInput = false; // accept all SOLIDs at once
542 _requireDiscreteBoundary = false; // mesh FACEs and EDGEs by myself
543 _supportSubmeshes = true; // "source" FACE must be meshed by other algo
544 _neededLowerHyps[ 1 ] = true; // suppress warning on hiding a global 1D algo
545 _neededLowerHyps[ 2 ] = true; // suppress warning on hiding a global 2D algo
547 //myProjectTriangles = false;
548 mySetErrorToSM = true; // to pass an error to a sub-mesh of a current solid or not
551 //================================================================================
555 //================================================================================
557 StdMeshers_Prism_3D::~StdMeshers_Prism_3D()
560 //=======================================================================
561 //function : CheckHypothesis
563 //=======================================================================
565 bool StdMeshers_Prism_3D::CheckHypothesis(SMESH_Mesh& aMesh,
566 const TopoDS_Shape& aShape,
567 SMESH_Hypothesis::Hypothesis_Status& aStatus)
569 // Check shape geometry
571 aStatus = SMESH_Hypothesis::HYP_BAD_GEOMETRY;
573 // find not quadrangle faces
574 list< TopoDS_Shape > notQuadFaces;
575 int nbEdge, nbWire, nbFace = 0;
576 TopExp_Explorer exp( aShape, TopAbs_FACE );
577 for ( ; exp.More(); exp.Next() ) {
579 const TopoDS_Shape& face = exp.Current();
580 nbEdge = TAssocTool::Count( face, TopAbs_EDGE, 0 );
581 nbWire = TAssocTool::Count( face, TopAbs_WIRE, 0 );
582 if ( nbEdge!= 4 || nbWire!= 1 ) {
583 if ( !notQuadFaces.empty() ) {
584 if ( TAssocTool::Count( notQuadFaces.back(), TopAbs_EDGE, 0 ) != nbEdge ||
585 TAssocTool::Count( notQuadFaces.back(), TopAbs_WIRE, 0 ) != nbWire )
586 RETURN_BAD_RESULT("Different not quad faces");
588 notQuadFaces.push_back( face );
591 if ( !notQuadFaces.empty() )
593 if ( notQuadFaces.size() != 2 )
594 RETURN_BAD_RESULT("Bad nb not quad faces: " << notQuadFaces.size());
596 // check total nb faces
597 nbEdge = TAssocTool::Count( notQuadFaces.back(), TopAbs_EDGE, 0 );
598 if ( nbFace != nbEdge + 2 )
599 RETURN_BAD_RESULT("Bad nb of faces: " << nbFace << " but must be " << nbEdge + 2);
603 aStatus = SMESH_Hypothesis::HYP_OK;
607 //=======================================================================
609 //purpose : Compute mesh on a COMPOUND of SOLIDs
610 //=======================================================================
612 bool StdMeshers_Prism_3D::Compute(SMESH_Mesh& theMesh, const TopoDS_Shape& theShape)
614 SMESH_MesherHelper helper( theMesh );
617 int nbSolids = helper.Count( theShape, TopAbs_SOLID, /*skipSame=*/false );
621 TopTools_IndexedDataMapOfShapeListOfShape faceToSolids;
622 TopExp::MapShapesAndAncestors( theShape, TopAbs_FACE, TopAbs_SOLID, faceToSolids );
624 // look for meshed FACEs ("source" FACEs) that must be prism bottoms
625 list< TopoDS_Face > meshedFaces, notQuadMeshedFaces, notQuadFaces;
626 const bool meshHasQuads = ( theMesh.NbQuadrangles() > 0 );
627 //StdMeshers_Quadrangle_2D* quadAlgo = TQuadrangleAlgo::instance( this );
628 for ( int iF = 1; iF <= faceToSolids.Extent(); ++iF )
630 const TopoDS_Face& face = TopoDS::Face( faceToSolids.FindKey( iF ));
631 SMESH_subMesh* faceSM = theMesh.GetSubMesh( face );
632 if ( !faceSM->IsEmpty() )
634 if ( !meshHasQuads ||
635 !helper.IsSameElemGeometry( faceSM->GetSubMeshDS(), SMDSGeom_QUADRANGLE ) ||
636 !helper.IsStructured( faceSM )
638 notQuadMeshedFaces.push_front( face );
639 else if ( myHelper->Count( face, TopAbs_EDGE, /*ignoreSame=*/false ) != 4 )
640 meshedFaces.push_front( face );
642 meshedFaces.push_back( face );
644 // not add not quadrilateral FACE as we can't compute it
645 // else if ( !quadAlgo->CheckNbEdges( theMesh, face ))
646 // // not add not quadrilateral FACE as it can be a prism side
647 // // else if ( myHelper->Count( face, TopAbs_EDGE, /*ignoreSame=*/false ) != 4 )
649 // notQuadFaces.push_back( face );
652 // notQuadFaces are of medium priority, put them before ordinary meshed faces
653 meshedFaces.splice( meshedFaces.begin(), notQuadFaces );
654 // notQuadMeshedFaces are of highest priority, put them before notQuadFaces
655 meshedFaces.splice( meshedFaces.begin(), notQuadMeshedFaces );
657 Prism_3D::TPrismTopo prism;
662 if ( !meshedFaces.empty() )
663 prism.myBottom = meshedFaces.front();
664 return ( initPrism( prism, TopExp_Explorer( theShape, TopAbs_SOLID ).Current() ) &&
668 // find propagation chains from already computed EDGEs
669 vector< TopoDS_Edge > computedEdges;
670 getPrecomputedEdges( helper, theShape, computedEdges );
671 myPropagChains = new TopTools_IndexedMapOfShape[ computedEdges.size() + 1 ];
672 SMESHUtils::ArrayDeleter< TopTools_IndexedMapOfShape > pcDel( myPropagChains );
673 for ( size_t i = 0, nb = 0; i < computedEdges.size(); ++i )
675 StdMeshers_ProjectionUtils::GetPropagationEdge( &theMesh, TopoDS_Edge(),
676 computedEdges[i], myPropagChains + nb );
677 if ( myPropagChains[ nb ].Extent() < 2 ) // an empty map is a termination sign
678 myPropagChains[ nb ].Clear();
683 TopTools_MapOfShape meshedSolids;
684 list< Prism_3D::TPrismTopo > meshedPrism;
685 TopTools_ListIteratorOfListOfShape solidIt;
687 while ( meshedSolids.Extent() < nbSolids )
689 if ( _computeCanceled )
690 return toSM( error( SMESH_ComputeError::New(COMPERR_CANCELED)));
692 // compute prisms having avident computed source FACE
693 while ( !meshedFaces.empty() )
695 TopoDS_Face face = meshedFaces.front();
696 meshedFaces.pop_front();
697 TopTools_ListOfShape& solidList = faceToSolids.ChangeFromKey( face );
698 while ( !solidList.IsEmpty() )
700 TopoDS_Shape solid = solidList.First();
701 solidList.RemoveFirst();
702 if ( meshedSolids.Add( solid ))
705 prism.myBottom = face;
706 if ( !initPrism( prism, solid ) ||
710 SMESHDS_SubMesh* smDS = theMesh.GetMeshDS()->MeshElements( prism.myTop );
711 if ( !myHelper->IsSameElemGeometry( smDS, SMDSGeom_QUADRANGLE ))
713 meshedFaces.push_front( prism.myTop );
715 meshedPrism.push_back( prism );
719 if ( meshedSolids.Extent() == nbSolids )
722 // below in the loop we try to find source FACEs somehow
724 // project mesh from source FACEs of computed prisms to
725 // prisms sharing wall FACEs
726 list< Prism_3D::TPrismTopo >::iterator prismIt = meshedPrism.begin();
727 for ( ; prismIt != meshedPrism.end(); ++prismIt )
729 for ( size_t iW = 0; iW < prismIt->myWallQuads.size(); ++iW )
731 Prism_3D::TQuadList::iterator wQuad = prismIt->myWallQuads[iW].begin();
732 for ( ; wQuad != prismIt->myWallQuads[iW].end(); ++ wQuad )
734 const TopoDS_Face& wFace = (*wQuad)->face;
735 TopTools_ListOfShape& solidList = faceToSolids.ChangeFromKey( wFace );
736 solidIt.Initialize( solidList );
737 while ( solidIt.More() )
739 const TopoDS_Shape& solid = solidIt.Value();
740 if ( meshedSolids.Contains( solid )) {
741 solidList.Remove( solidIt );
742 continue; // already computed prism
744 // find a source FACE of the SOLID: it's a FACE sharing a bottom EDGE with wFace
745 const TopoDS_Edge& wEdge = (*wQuad)->side[ QUAD_TOP_SIDE ].grid->Edge(0);
746 PShapeIteratorPtr faceIt = myHelper->GetAncestors( wEdge, *myHelper->GetMesh(),
748 while ( const TopoDS_Shape* f = faceIt->next() )
750 const TopoDS_Face& candidateF = TopoDS::Face( *f );
752 prism.myBottom = candidateF;
753 mySetErrorToSM = false;
754 if ( !myHelper->IsSubShape( candidateF, prismIt->myShape3D ) &&
755 myHelper->IsSubShape( candidateF, solid ) &&
756 !myHelper->GetMesh()->GetSubMesh( candidateF )->IsMeshComputed() &&
757 initPrism( prism, solid ) &&
758 project2dMesh( prismIt->myBottom, candidateF))
760 mySetErrorToSM = true;
761 if ( !compute( prism ))
763 SMESHDS_SubMesh* smDS = theMesh.GetMeshDS()->MeshElements( prism.myTop );
764 if ( !myHelper->IsSameElemGeometry( smDS, SMDSGeom_QUADRANGLE ))
766 meshedFaces.push_front( prism.myTop );
767 meshedFaces.push_front( prism.myBottom );
769 meshedPrism.push_back( prism );
770 meshedSolids.Add( solid );
774 mySetErrorToSM = true;
776 if ( meshedSolids.Contains( solid ))
777 solidList.Remove( solidIt );
783 if ( !meshedFaces.empty() )
784 break; // to compute prisms with avident sources
787 // find FACEs with local 1D hyps, which has to be computed by now,
788 // or at least any computed FACEs
789 for ( int iF = 1; ( meshedFaces.empty() && iF < faceToSolids.Extent() ); ++iF )
791 const TopoDS_Face& face = TopoDS::Face( faceToSolids.FindKey( iF ));
792 const TopTools_ListOfShape& solidList = faceToSolids.FindFromKey( face );
793 if ( solidList.IsEmpty() ) continue;
794 SMESH_subMesh* faceSM = theMesh.GetSubMesh( face );
795 if ( !faceSM->IsEmpty() )
797 meshedFaces.push_back( face ); // lower priority
801 bool allSubMeComputed = true;
802 SMESH_subMeshIteratorPtr smIt = faceSM->getDependsOnIterator(false,true);
803 while ( smIt->more() && allSubMeComputed )
804 allSubMeComputed = smIt->next()->IsMeshComputed();
805 if ( allSubMeComputed )
807 faceSM->ComputeStateEngine( SMESH_subMesh::COMPUTE );
808 if ( !faceSM->IsEmpty() )
809 meshedFaces.push_front( face ); // higher priority
811 faceSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
817 // TODO. there are other ways to find out the source FACE:
818 // propagation, topological similarity, ect.
820 // simply try to mesh all not meshed SOLIDs
821 if ( meshedFaces.empty() )
823 for ( TopExp_Explorer solid( theShape, TopAbs_SOLID ); solid.More(); solid.Next() )
825 mySetErrorToSM = false;
827 if ( !meshedSolids.Contains( solid.Current() ) &&
828 initPrism( prism, solid.Current() ))
830 mySetErrorToSM = true;
831 if ( !compute( prism ))
833 meshedFaces.push_front( prism.myTop );
834 meshedFaces.push_front( prism.myBottom );
835 meshedPrism.push_back( prism );
836 meshedSolids.Add( solid.Current() );
838 mySetErrorToSM = true;
842 if ( meshedFaces.empty() ) // set same error to 10 not-computed solids
844 SMESH_ComputeErrorPtr err = SMESH_ComputeError::New
845 ( COMPERR_BAD_INPUT_MESH, "No meshed source face found", this );
847 const int maxNbErrors = 10; // limit nb errors not to overload the Compute dialog
848 TopExp_Explorer solid( theShape, TopAbs_SOLID );
849 for ( int i = 0; ( i < maxNbErrors && solid.More() ); ++i, solid.Next() )
850 if ( !meshedSolids.Contains( solid.Current() ))
852 SMESH_subMesh* sm = theMesh.GetSubMesh( solid.Current() );
853 sm->GetComputeError() = err;
861 //================================================================================
863 * \brief Find wall faces by bottom edges
865 //================================================================================
867 bool StdMeshers_Prism_3D::getWallFaces( Prism_3D::TPrismTopo & thePrism,
868 const int totalNbFaces)
870 thePrism.myWallQuads.clear();
872 SMESH_Mesh* mesh = myHelper->GetMesh();
874 StdMeshers_Quadrangle_2D* quadAlgo = TQuadrangleAlgo::instance( this, myHelper );
876 TopTools_MapOfShape faceMap;
877 TopTools_IndexedDataMapOfShapeListOfShape edgeToFaces;
878 TopExp::MapShapesAndAncestors( thePrism.myShape3D,
879 TopAbs_EDGE, TopAbs_FACE, edgeToFaces );
881 // ------------------------------
882 // Get the 1st row of wall FACEs
883 // ------------------------------
885 list< TopoDS_Edge >::iterator edge = thePrism.myBottomEdges.begin();
886 std::list< int >::iterator nbE = thePrism.myNbEdgesInWires.begin();
889 while ( edge != thePrism.myBottomEdges.end() )
892 if ( BRep_Tool::Curve( *edge, f,l ).IsNull() )
894 edge = thePrism.myBottomEdges.erase( edge );
900 TopTools_ListIteratorOfListOfShape faceIt( edgeToFaces.FindFromKey( *edge ));
901 for ( ; faceIt.More(); faceIt.Next() )
903 const TopoDS_Face& face = TopoDS::Face( faceIt.Value() );
904 if ( !thePrism.myBottom.IsSame( face ))
906 Prism_3D::TQuadList quadList( 1, quadAlgo->CheckNbEdges( *mesh, face ));
907 if ( !quadList.back() )
908 return toSM( error(TCom("Side face #") << shapeID( face )
909 << " not meshable with quadrangles"));
910 bool isCompositeBase = ! setBottomEdge( *edge, quadList.back(), face );
911 if ( isCompositeBase )
913 // it's OK if all EDGEs of the bottom side belongs to the bottom FACE
914 StdMeshers_FaceSidePtr botSide = quadList.back()->side[ QUAD_BOTTOM_SIDE ];
915 for ( int iE = 0; iE < botSide->NbEdges(); ++iE )
916 if ( !myHelper->IsSubShape( botSide->Edge(iE), thePrism.myBottom ))
917 return toSM( error(TCom("Composite 'horizontal' edges are not supported")));
919 if ( faceMap.Add( face ))
920 thePrism.myWallQuads.push_back( quadList );
933 // -------------------------
934 // Find the rest wall FACEs
935 // -------------------------
937 // Compose a vector of indixes of right neighbour FACE for each wall FACE
938 // that is not so evident in case of several WIREs in the bottom FACE
939 thePrism.myRightQuadIndex.clear();
940 for ( size_t i = 0; i < thePrism.myWallQuads.size(); ++i )
941 thePrism.myRightQuadIndex.push_back( i+1 );
942 list< int >::iterator nbEinW = thePrism.myNbEdgesInWires.begin();
943 for ( int iLeft = 0; nbEinW != thePrism.myNbEdgesInWires.end(); ++nbEinW )
945 thePrism.myRightQuadIndex[ iLeft + *nbEinW - 1 ] = iLeft; // 1st EDGE index of a current WIRE
949 while ( totalNbFaces - faceMap.Extent() > 2 )
951 // find wall FACEs adjacent to each of wallQuads by the right side EDGE
954 nbKnownFaces = faceMap.Extent();
955 StdMeshers_FaceSidePtr rightSide, topSide; // sides of the quad
956 for ( size_t i = 0; i < thePrism.myWallQuads.size(); ++i )
958 rightSide = thePrism.myWallQuads[i].back()->side[ QUAD_RIGHT_SIDE ];
959 for ( int iE = 0; iE < rightSide->NbEdges(); ++iE ) // rightSide can be composite
961 const TopoDS_Edge & rightE = rightSide->Edge( iE );
962 TopTools_ListIteratorOfListOfShape face( edgeToFaces.FindFromKey( rightE ));
963 for ( ; face.More(); face.Next() )
964 if ( faceMap.Add( face.Value() ))
966 // a new wall FACE encountered, store it in thePrism.myWallQuads
967 const int iRight = thePrism.myRightQuadIndex[i];
968 topSide = thePrism.myWallQuads[ iRight ].back()->side[ QUAD_TOP_SIDE ];
969 const TopoDS_Edge& newBotE = topSide->Edge(0);
970 const TopoDS_Shape& newWallF = face.Value();
971 thePrism.myWallQuads[ iRight ].push_back( quadAlgo->CheckNbEdges( *mesh, newWallF ));
972 if ( !thePrism.myWallQuads[ iRight ].back() )
973 return toSM( error(TCom("Side face #") << shapeID( newWallF ) <<
974 " not meshable with quadrangles"));
975 if ( ! setBottomEdge( newBotE, thePrism.myWallQuads[ iRight ].back(), newWallF ))
976 return toSM( error(TCom("Composite 'horizontal' edges are not supported")));
980 } while ( nbKnownFaces != faceMap.Extent() );
982 // find wall FACEs adjacent to each of thePrism.myWallQuads by the top side EDGE
983 if ( totalNbFaces - faceMap.Extent() > 2 )
985 for ( size_t i = 0; i < thePrism.myWallQuads.size(); ++i )
987 StdMeshers_FaceSidePtr topSide = thePrism.myWallQuads[i].back()->side[ QUAD_TOP_SIDE ];
988 const TopoDS_Edge & topE = topSide->Edge( 0 );
989 if ( topSide->NbEdges() > 1 )
990 return toSM( error(COMPERR_BAD_SHAPE, TCom("Side face #") <<
991 shapeID( thePrism.myWallQuads[i].back()->face )
992 << " has a composite top edge"));
993 TopTools_ListIteratorOfListOfShape faceIt( edgeToFaces.FindFromKey( topE ));
994 for ( ; faceIt.More(); faceIt.Next() )
995 if ( faceMap.Add( faceIt.Value() ))
997 // a new wall FACE encountered, store it in wallQuads
998 thePrism.myWallQuads[ i ].push_back( quadAlgo->CheckNbEdges( *mesh, faceIt.Value() ));
999 if ( !thePrism.myWallQuads[ i ].back() )
1000 return toSM( error(TCom("Side face #") << shapeID( faceIt.Value() ) <<
1001 " not meshable with quadrangles"));
1002 if ( ! setBottomEdge( topE, thePrism.myWallQuads[ i ].back(), faceIt.Value() ))
1003 return toSM( error(TCom("Composite 'horizontal' edges are not supported")));
1004 if ( totalNbFaces - faceMap.Extent() == 2 )
1006 i = thePrism.myWallQuads.size(); // to quit from the outer loop
1012 } // while ( totalNbFaces - faceMap.Extent() > 2 )
1014 // ------------------
1015 // Find the top FACE
1016 // ------------------
1018 if ( thePrism.myTop.IsNull() )
1020 // now only top and bottom FACEs are not in the faceMap
1021 faceMap.Add( thePrism.myBottom );
1022 for ( TopExp_Explorer f( thePrism.myShape3D, TopAbs_FACE );f.More(); f.Next() )
1023 if ( !faceMap.Contains( f.Current() )) {
1024 thePrism.myTop = TopoDS::Face( f.Current() );
1027 if ( thePrism.myTop.IsNull() )
1028 return toSM( error("Top face not found"));
1031 // Check that the top FACE shares all the top EDGEs
1032 for ( size_t i = 0; i < thePrism.myWallQuads.size(); ++i )
1034 StdMeshers_FaceSidePtr topSide = thePrism.myWallQuads[i].back()->side[ QUAD_TOP_SIDE ];
1035 const TopoDS_Edge & topE = topSide->Edge( 0 );
1036 if ( !myHelper->IsSubShape( topE, thePrism.myTop ))
1037 return toSM( error( TCom("Wrong source face (#") << shapeID( thePrism.myBottom )));
1043 //=======================================================================
1044 //function : compute
1045 //purpose : Compute mesh on a SOLID
1046 //=======================================================================
1048 bool StdMeshers_Prism_3D::compute(const Prism_3D::TPrismTopo& thePrism)
1050 myHelper->IsQuadraticSubMesh( thePrism.myShape3D );
1051 if ( _computeCanceled )
1052 return toSM( error( SMESH_ComputeError::New(COMPERR_CANCELED)));
1054 // Make all side FACEs of thePrism meshed with quads
1055 if ( !computeWalls( thePrism ))
1058 // Analyse mesh and geometry to find all block sub-shapes and submeshes
1059 if ( !myBlock.Init( myHelper, thePrism ))
1060 return toSM( error( myBlock.GetError()));
1062 SMESHDS_Mesh* meshDS = myHelper->GetMeshDS();
1064 int volumeID = meshDS->ShapeToIndex( thePrism.myShape3D );
1066 // Try to get gp_Trsf to get all nodes from bottom ones
1067 vector<gp_Trsf> trsf;
1068 gp_Trsf bottomToTopTrsf;
1069 if ( !myBlock.GetLayersTransformation( trsf, thePrism ))
1071 else if ( !trsf.empty() )
1072 bottomToTopTrsf = trsf.back();
1074 // To compute coordinates of a node inside a block, it is necessary to know
1075 // 1. normalized parameters of the node by which
1076 // 2. coordinates of node projections on all block sub-shapes are computed
1078 // So we fill projections on vertices at once as they are same for all nodes
1079 myShapeXYZ.resize( myBlock.NbSubShapes() );
1080 for ( int iV = SMESH_Block::ID_FirstV; iV < SMESH_Block::ID_FirstE; ++iV ) {
1081 myBlock.VertexPoint( iV, myShapeXYZ[ iV ]);
1082 SHOWYXZ("V point " <<iV << " ", myShapeXYZ[ iV ]);
1085 // Projections on the top and bottom faces are taken from nodes existing
1086 // on these faces; find correspondence between bottom and top nodes
1087 myBotToColumnMap.clear();
1088 if ( !assocOrProjBottom2Top( bottomToTopTrsf, thePrism ) ) // it also fills myBotToColumnMap
1092 // Create nodes inside the block
1094 // try to use transformation (issue 0020680)
1095 if ( !trsf.empty() )
1097 // loop on nodes inside the bottom face
1098 TNode2ColumnMap::iterator bot_column = myBotToColumnMap.begin();
1099 for ( ; bot_column != myBotToColumnMap.end(); ++bot_column )
1101 const Prism_3D::TNode& tBotNode = bot_column->first; // bottom TNode
1102 if ( tBotNode.GetPositionType() != SMDS_TOP_FACE )
1103 continue; // node is not inside face
1105 // column nodes; middle part of the column are zero pointers
1106 TNodeColumn& column = bot_column->second;
1107 TNodeColumn::iterator columnNodes = column.begin();
1108 for ( int z = 0; columnNodes != column.end(); ++columnNodes, ++z)
1110 const SMDS_MeshNode* & node = *columnNodes;
1111 if ( node ) continue; // skip bottom or top node
1113 gp_XYZ coords = tBotNode.GetCoords();
1114 trsf[z-1].Transforms( coords );
1115 node = meshDS->AddNode( coords.X(), coords.Y(), coords.Z() );
1116 meshDS->SetNodeInVolume( node, volumeID );
1118 } // loop on bottom nodes
1120 else // use block approach
1122 // loop on nodes inside the bottom face
1123 Prism_3D::TNode prevBNode;
1124 TNode2ColumnMap::iterator bot_column = myBotToColumnMap.begin();
1125 for ( ; bot_column != myBotToColumnMap.end(); ++bot_column )
1127 const Prism_3D::TNode& tBotNode = bot_column->first; // bottom TNode
1128 if ( tBotNode.GetPositionType() != SMDS_TOP_FACE )
1129 continue; // node is not inside the FACE
1131 // column nodes; middle part of the column are zero pointers
1132 TNodeColumn& column = bot_column->second;
1134 gp_XYZ botParams, topParams;
1135 if ( !tBotNode.HasParams() )
1137 // compute bottom node parameters
1138 gp_XYZ paramHint(-1,-1,-1);
1139 if ( prevBNode.IsNeighbor( tBotNode ))
1140 paramHint = prevBNode.GetParams();
1141 if ( !myBlock.ComputeParameters( tBotNode.GetCoords(), tBotNode.ChangeParams(),
1142 ID_BOT_FACE, paramHint ))
1143 return toSM( error(TCom("Can't compute normalized parameters for node ")
1144 << tBotNode.myNode->GetID() << " on the face #"
1145 << myBlock.SubMesh( ID_BOT_FACE )->GetId() ));
1146 prevBNode = tBotNode;
1148 botParams = topParams = tBotNode.GetParams();
1149 topParams.SetZ( 1 );
1151 // compute top node parameters
1152 if ( column.size() > 2 ) {
1153 gp_Pnt topCoords = gpXYZ( column.back() );
1154 if ( !myBlock.ComputeParameters( topCoords, topParams, ID_TOP_FACE, topParams ))
1155 return toSM( error(TCom("Can't compute normalized parameters ")
1156 << "for node " << column.back()->GetID()
1157 << " on the face #"<< column.back()->getshapeId() ));
1160 else // top nodes are created by projection using parameters
1162 botParams = topParams = tBotNode.GetParams();
1163 topParams.SetZ( 1 );
1166 myShapeXYZ[ ID_BOT_FACE ] = tBotNode.GetCoords();
1167 myShapeXYZ[ ID_TOP_FACE ] = gpXYZ( column.back() );
1170 TNodeColumn::iterator columnNodes = column.begin();
1171 for ( int z = 0; columnNodes != column.end(); ++columnNodes, ++z)
1173 const SMDS_MeshNode* & node = *columnNodes;
1174 if ( node ) continue; // skip bottom or top node
1176 // params of a node to create
1177 double rz = (double) z / (double) ( column.size() - 1 );
1178 gp_XYZ params = botParams * ( 1 - rz ) + topParams * rz;
1180 // set coords on all faces and nodes
1181 const int nbSideFaces = 4;
1182 int sideFaceIDs[nbSideFaces] = { SMESH_Block::ID_Fx0z,
1183 SMESH_Block::ID_Fx1z,
1184 SMESH_Block::ID_F0yz,
1185 SMESH_Block::ID_F1yz };
1186 for ( int iF = 0; iF < nbSideFaces; ++iF )
1187 if ( !setFaceAndEdgesXYZ( sideFaceIDs[ iF ], params, z ))
1190 // compute coords for a new node
1192 if ( !SMESH_Block::ShellPoint( params, myShapeXYZ, coords ))
1193 return toSM( error("Can't compute coordinates by normalized parameters"));
1195 // if ( !meshDS->MeshElements( volumeID ) ||
1196 // meshDS->MeshElements( volumeID )->NbNodes() == 0 )
1197 // pointsToPython(myShapeXYZ);
1198 SHOWYXZ("TOPFacePoint ",myShapeXYZ[ ID_TOP_FACE]);
1199 SHOWYXZ("BOT Node "<< tBotNode.myNode->GetID(),gpXYZ(tBotNode.myNode));
1200 SHOWYXZ("ShellPoint ",coords);
1203 node = meshDS->AddNode( coords.X(), coords.Y(), coords.Z() );
1204 meshDS->SetNodeInVolume( node, volumeID );
1206 } // loop on bottom nodes
1211 SMESHDS_SubMesh* smDS = myBlock.SubMeshDS( ID_BOT_FACE );
1212 if ( !smDS ) return toSM( error(COMPERR_BAD_INPUT_MESH, "Null submesh"));
1214 // loop on bottom mesh faces
1215 SMDS_ElemIteratorPtr faceIt = smDS->GetElements();
1216 while ( faceIt->more() )
1218 const SMDS_MeshElement* face = faceIt->next();
1219 if ( !face || face->GetType() != SMDSAbs_Face )
1222 // find node columns for each node
1223 int nbNodes = face->NbCornerNodes();
1224 vector< const TNodeColumn* > columns( nbNodes );
1225 for ( int i = 0; i < nbNodes; ++i )
1227 const SMDS_MeshNode* n = face->GetNode( i );
1228 if ( n->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE ) {
1229 TNode2ColumnMap::iterator bot_column = myBotToColumnMap.find( n );
1230 if ( bot_column == myBotToColumnMap.end() )
1231 return toSM( error(TCom("No nodes found above node ") << n->GetID() ));
1232 columns[ i ] = & bot_column->second;
1235 columns[ i ] = myBlock.GetNodeColumn( n );
1236 if ( !columns[ i ] )
1237 return toSM( error(TCom("No side nodes found above node ") << n->GetID() ));
1241 AddPrisms( columns, myHelper );
1243 } // loop on bottom mesh faces
1246 myBotToColumnMap.clear();
1252 //=======================================================================
1253 //function : computeWalls
1254 //purpose : Compute 2D mesh on walls FACEs of a prism
1255 //=======================================================================
1257 bool StdMeshers_Prism_3D::computeWalls(const Prism_3D::TPrismTopo& thePrism)
1259 SMESH_Mesh* mesh = myHelper->GetMesh();
1260 SMESHDS_Mesh* meshDS = myHelper->GetMeshDS();
1261 DBGOUT( endl << "COMPUTE Prism " << meshDS->ShapeToIndex( thePrism.myShape3D ));
1263 TProjction1dAlgo* projector1D = TProjction1dAlgo::instance( this );
1264 StdMeshers_Quadrangle_2D* quadAlgo = TQuadrangleAlgo::instance( this, myHelper );
1266 // SMESH_HypoFilter hyp1dFilter( SMESH_HypoFilter::IsAlgo(),/*not=*/true);
1267 // hyp1dFilter.And( SMESH_HypoFilter::HasDim( 1 ));
1268 // hyp1dFilter.And( SMESH_HypoFilter::IsMoreLocalThan( thePrism.myShape3D, *mesh ));
1270 // Discretize equally 'vertical' EDGEs
1271 // -----------------------------------
1272 // find source FACE sides for projection: either already computed ones or
1273 // the 'most composite' ones
1274 const size_t nbWalls = thePrism.myWallQuads.size();
1275 vector< int > wgt( nbWalls, 0 ); // "weight" of a wall
1276 for ( size_t iW = 0; iW != nbWalls; ++iW )
1278 Prism_3D::TQuadList::const_iterator quad = thePrism.myWallQuads[iW].begin();
1279 for ( ; quad != thePrism.myWallQuads[iW].end(); ++quad )
1281 StdMeshers_FaceSidePtr lftSide = (*quad)->side[ QUAD_LEFT_SIDE ];
1282 for ( int i = 0; i < lftSide->NbEdges(); ++i )
1285 const TopoDS_Edge& E = lftSide->Edge(i);
1286 if ( mesh->GetSubMesh( E )->IsMeshComputed() )
1289 wgt[ myHelper->WrapIndex( iW+1, nbWalls)] += 10;
1290 wgt[ myHelper->WrapIndex( iW-1, nbWalls)] += 10;
1292 // else if ( mesh->GetHypothesis( E, hyp1dFilter, true )) // local hypothesis!
1296 // in quadratic mesh, pass ignoreMediumNodes to quad sides
1297 if ( myHelper->GetIsQuadratic() )
1299 quad = thePrism.myWallQuads[iW].begin();
1300 for ( ; quad != thePrism.myWallQuads[iW].end(); ++quad )
1301 for ( int i = 0; i < NB_QUAD_SIDES; ++i )
1302 (*quad)->side[ i ].grid->SetIgnoreMediumNodes( true );
1305 multimap< int, int > wgt2quad;
1306 for ( size_t iW = 0; iW != nbWalls; ++iW )
1307 wgt2quad.insert( make_pair( wgt[ iW ], iW ));
1309 // Project 'vertical' EDGEs, from left to right
1310 multimap< int, int >::reverse_iterator w2q = wgt2quad.rbegin();
1311 for ( ; w2q != wgt2quad.rend(); ++w2q )
1313 const int iW = w2q->second;
1314 const Prism_3D::TQuadList& quads = thePrism.myWallQuads[ iW ];
1315 Prism_3D::TQuadList::const_iterator quad = quads.begin();
1316 for ( ; quad != quads.end(); ++quad )
1318 StdMeshers_FaceSidePtr rgtSide = (*quad)->side[ QUAD_RIGHT_SIDE ]; // tgt
1319 StdMeshers_FaceSidePtr lftSide = (*quad)->side[ QUAD_LEFT_SIDE ]; // src
1320 bool swapLeftRight = ( lftSide->NbSegments( /*update=*/true ) == 0 &&
1321 rgtSide->NbSegments( /*update=*/true ) > 0 );
1322 if ( swapLeftRight )
1323 std::swap( lftSide, rgtSide );
1325 // assure that all the source (left) EDGEs are meshed
1326 int nbSrcSegments = 0;
1327 for ( int i = 0; i < lftSide->NbEdges(); ++i )
1329 const TopoDS_Edge& srcE = lftSide->Edge(i);
1330 SMESH_subMesh* srcSM = mesh->GetSubMesh( srcE );
1331 if ( !srcSM->IsMeshComputed() ) {
1332 DBGOUT( "COMPUTE V edge " << srcSM->GetId() );
1333 TopoDS_Edge prpgSrcE = findPropagationSource( srcE );
1334 if ( !prpgSrcE.IsNull() ) {
1335 srcSM->ComputeSubMeshStateEngine( SMESH_subMesh::COMPUTE );
1336 projector1D->myHyp.SetSourceEdge( prpgSrcE );
1337 projector1D->Compute( *mesh, srcE );
1338 srcSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
1341 srcSM->ComputeSubMeshStateEngine( SMESH_subMesh::COMPUTE );
1342 srcSM->ComputeStateEngine ( SMESH_subMesh::COMPUTE );
1344 if ( !srcSM->IsMeshComputed() )
1345 return toSM( error( "Can't compute 1D mesh" ));
1347 nbSrcSegments += srcSM->GetSubMeshDS()->NbElements();
1349 // check target EDGEs
1350 int nbTgtMeshed = 0, nbTgtSegments = 0;
1351 vector< bool > isTgtEdgeComputed( rgtSide->NbEdges() );
1352 for ( int i = 0; i < rgtSide->NbEdges(); ++i )
1354 const TopoDS_Edge& tgtE = rgtSide->Edge(i);
1355 SMESH_subMesh* tgtSM = mesh->GetSubMesh( tgtE );
1356 if ( !( isTgtEdgeComputed[ i ] = tgtSM->IsMeshComputed() )) {
1357 tgtSM->ComputeSubMeshStateEngine( SMESH_subMesh::COMPUTE );
1358 tgtSM->ComputeStateEngine ( SMESH_subMesh::COMPUTE );
1360 if ( tgtSM->IsMeshComputed() ) {
1362 nbTgtSegments += tgtSM->GetSubMeshDS()->NbElements();
1365 if ( rgtSide->NbEdges() == nbTgtMeshed ) // all tgt EDGEs meshed
1367 if ( nbTgtSegments != nbSrcSegments )
1369 bool badMeshRemoved = false;
1370 // remove just computed segments
1371 for ( int i = 0; i < rgtSide->NbEdges(); ++i )
1372 if ( !isTgtEdgeComputed[ i ])
1374 const TopoDS_Edge& tgtE = rgtSide->Edge(i);
1375 SMESH_subMesh* tgtSM = mesh->GetSubMesh( tgtE );
1376 tgtSM->ComputeStateEngine( SMESH_subMesh::CLEAN );
1377 badMeshRemoved = true;
1380 if ( !badMeshRemoved )
1382 for ( int i = 0; i < lftSide->NbEdges(); ++i )
1383 addBadInputElements( meshDS->MeshElements( lftSide->Edge( i )));
1384 for ( int i = 0; i < rgtSide->NbEdges(); ++i )
1385 addBadInputElements( meshDS->MeshElements( rgtSide->Edge( i )));
1386 return toSM( error( TCom("Different nb of segment on logically vertical edges #")
1387 << shapeID( lftSide->Edge(0) ) << " and #"
1388 << shapeID( rgtSide->Edge(0) ) << ": "
1389 << nbSrcSegments << " != " << nbTgtSegments ));
1392 else // if ( nbTgtSegments == nbSrcSegments )
1397 // Compute 'vertical projection'
1398 if ( nbTgtMeshed == 0 )
1400 // compute nodes on target VERTEXes
1401 const UVPtStructVec& srcNodeStr = lftSide->GetUVPtStruct();
1402 if ( srcNodeStr.size() == 0 )
1403 return toSM( error( TCom("Invalid node positions on edge #") <<
1404 shapeID( lftSide->Edge(0) )));
1405 vector< SMDS_MeshNode* > newNodes( srcNodeStr.size() );
1406 for ( int is2ndV = 0; is2ndV < 2; ++is2ndV )
1408 const TopoDS_Edge& E = rgtSide->Edge( is2ndV ? rgtSide->NbEdges()-1 : 0 );
1409 TopoDS_Vertex v = myHelper->IthVertex( is2ndV, E );
1410 mesh->GetSubMesh( v )->ComputeStateEngine( SMESH_subMesh::COMPUTE );
1411 const SMDS_MeshNode* n = SMESH_Algo::VertexNode( v, meshDS );
1412 newNodes[ is2ndV ? 0 : newNodes.size()-1 ] = (SMDS_MeshNode*) n;
1415 // compute nodes on target EDGEs
1416 DBGOUT( "COMPUTE V edge (proj) " << shapeID( lftSide->Edge(0)));
1417 rgtSide->Reverse(); // direct it same as the lftSide
1418 myHelper->SetElementsOnShape( false ); // myHelper holds the prism shape
1419 TopoDS_Edge tgtEdge;
1420 for ( size_t iN = 1; iN < srcNodeStr.size()-1; ++iN ) // add nodes
1422 gp_Pnt p = rgtSide->Value3d ( srcNodeStr[ iN ].normParam );
1423 double u = rgtSide->Parameter( srcNodeStr[ iN ].normParam, tgtEdge );
1424 newNodes[ iN ] = meshDS->AddNode( p.X(), p.Y(), p.Z() );
1425 meshDS->SetNodeOnEdge( newNodes[ iN ], tgtEdge, u );
1427 for ( size_t iN = 1; iN < srcNodeStr.size(); ++iN ) // add segments
1429 // find an EDGE to set a new segment
1430 std::pair<int, TopAbs_ShapeEnum> id2type =
1431 myHelper->GetMediumPos( newNodes[ iN-1 ], newNodes[ iN ] );
1432 if ( id2type.second != TopAbs_EDGE )
1434 // new nodes are on different EDGEs; put one of them on VERTEX
1435 const int edgeIndex = rgtSide->EdgeIndex( srcNodeStr[ iN-1 ].normParam );
1436 const double vertexParam = rgtSide->LastParameter( edgeIndex );
1437 TopoDS_Vertex vertex = rgtSide->LastVertex( edgeIndex );
1438 const SMDS_MeshNode* vn = SMESH_Algo::VertexNode( vertex, meshDS );
1439 const gp_Pnt p = BRep_Tool::Pnt( vertex );
1440 const int isPrev = ( Abs( srcNodeStr[ iN-1 ].normParam - vertexParam ) <
1441 Abs( srcNodeStr[ iN ].normParam - vertexParam ));
1442 meshDS->UnSetNodeOnShape( newNodes[ iN-isPrev ] );
1443 meshDS->SetNodeOnVertex ( newNodes[ iN-isPrev ], vertex );
1444 meshDS->MoveNode ( newNodes[ iN-isPrev ], p.X(), p.Y(), p.Z() );
1445 id2type.first = newNodes[ iN-(1-isPrev) ]->getshapeId();
1448 SMESH_MeshEditor::TListOfListOfNodes lln( 1, list< const SMDS_MeshNode* >() );
1449 lln.back().push_back ( vn );
1450 lln.back().push_front( newNodes[ iN-isPrev ] ); // to keep
1451 SMESH_MeshEditor( mesh ).MergeNodes( lln );
1454 SMDS_MeshElement* newEdge = myHelper->AddEdge( newNodes[ iN-1 ], newNodes[ iN ] );
1455 meshDS->SetMeshElementOnShape( newEdge, id2type.first );
1457 myHelper->SetElementsOnShape( true );
1458 for ( int i = 0; i < rgtSide->NbEdges(); ++i ) // update state of sub-meshes
1460 const TopoDS_Edge& E = rgtSide->Edge( i );
1461 SMESH_subMesh* tgtSM = mesh->GetSubMesh( E );
1462 tgtSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
1465 // to continue projection from the just computed side as a source
1466 if ( !swapLeftRight && rgtSide->NbEdges() > 1 && w2q->second == iW )
1468 std::pair<int,int> wgt2quadKeyVal( w2q->first + 1, thePrism.myRightQuadIndex[ iW ]);
1469 wgt2quad.insert( wgt2quadKeyVal ); // it will be skipped by ++w2q
1470 wgt2quad.insert( wgt2quadKeyVal );
1471 w2q = wgt2quad.rbegin();
1476 // HOPE assigned hypotheses are OK, so that equal nb of segments will be generated
1477 //return toSM( error("Partial projection not implemented"));
1479 } // loop on quads of a composite wall side
1480 } // loop on the ordered wall sides
1484 for ( size_t iW = 0; iW != thePrism.myWallQuads.size(); ++iW )
1486 Prism_3D::TQuadList::const_iterator quad = thePrism.myWallQuads[iW].begin();
1487 for ( ; quad != thePrism.myWallQuads[iW].end(); ++quad )
1489 const TopoDS_Face& face = (*quad)->face;
1490 SMESH_subMesh* fSM = mesh->GetSubMesh( face );
1491 if ( ! fSM->IsMeshComputed() )
1493 // Top EDGEs must be projections from the bottom ones
1494 // to compute stuctured quad mesh on wall FACEs
1495 // ---------------------------------------------------
1496 const TopoDS_Edge& botE = (*quad)->side[ QUAD_BOTTOM_SIDE ].grid->Edge(0);
1497 const TopoDS_Edge& topE = (*quad)->side[ QUAD_TOP_SIDE ].grid->Edge(0);
1498 SMESH_subMesh* botSM = mesh->GetSubMesh( botE );
1499 SMESH_subMesh* topSM = mesh->GetSubMesh( topE );
1500 SMESH_subMesh* srcSM = botSM;
1501 SMESH_subMesh* tgtSM = topSM;
1502 if ( !srcSM->IsMeshComputed() && tgtSM->IsMeshComputed() )
1503 std::swap( srcSM, tgtSM );
1505 if ( !srcSM->IsMeshComputed() )
1507 DBGOUT( "COMPUTE H edge " << srcSM->GetId());
1508 srcSM->ComputeSubMeshStateEngine( SMESH_subMesh::COMPUTE ); // nodes on VERTEXes
1509 srcSM->ComputeStateEngine( SMESH_subMesh::COMPUTE ); // segments on the EDGE
1511 srcSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
1513 if ( tgtSM->IsMeshComputed() &&
1514 tgtSM->GetSubMeshDS()->NbNodes() != srcSM->GetSubMeshDS()->NbNodes() )
1516 // the top EDGE is computed differently than the bottom one,
1517 // try to clear a wrong mesh
1518 bool isAdjFaceMeshed = false;
1519 PShapeIteratorPtr fIt = myHelper->GetAncestors( tgtSM->GetSubShape(),
1520 *mesh, TopAbs_FACE );
1521 while ( const TopoDS_Shape* f = fIt->next() )
1522 if (( isAdjFaceMeshed = mesh->GetSubMesh( *f )->IsMeshComputed() ))
1524 if ( isAdjFaceMeshed )
1525 return toSM( error( TCom("Different nb of segment on logically horizontal edges #")
1526 << shapeID( botE ) << " and #"
1527 << shapeID( topE ) << ": "
1528 << tgtSM->GetSubMeshDS()->NbElements() << " != "
1529 << srcSM->GetSubMeshDS()->NbElements() ));
1530 tgtSM->ComputeStateEngine( SMESH_subMesh::CLEAN );
1532 if ( !tgtSM->IsMeshComputed() )
1534 // compute nodes on VERTEXes
1535 SMESH_subMeshIteratorPtr smIt = tgtSM->getDependsOnIterator(/*includeSelf=*/false);
1536 while ( smIt->more() )
1537 smIt->next()->ComputeStateEngine( SMESH_subMesh::COMPUTE );
1539 DBGOUT( "COMPUTE H edge (proj) " << tgtSM->GetId());
1540 projector1D->myHyp.SetSourceEdge( TopoDS::Edge( srcSM->GetSubShape() ));
1541 projector1D->InitComputeError();
1542 bool ok = projector1D->Compute( *mesh, tgtSM->GetSubShape() );
1545 SMESH_ComputeErrorPtr err = projector1D->GetComputeError();
1546 if ( err->IsOK() ) err->myName = COMPERR_ALGO_FAILED;
1547 tgtSM->GetComputeError() = err;
1551 tgtSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
1554 // Compute quad mesh on wall FACEs
1555 // -------------------------------
1557 // make all EDGES meshed
1558 fSM->ComputeSubMeshStateEngine( SMESH_subMesh::COMPUTE );
1559 if ( !fSM->SubMeshesComputed() )
1560 return toSM( error( COMPERR_BAD_INPUT_MESH,
1561 "Not all edges have valid algorithm and hypothesis"));
1563 quadAlgo->InitComputeError();
1564 DBGOUT( "COMPUTE Quad face " << fSM->GetId());
1565 bool ok = quadAlgo->Compute( *mesh, face );
1566 fSM->GetComputeError() = quadAlgo->GetComputeError();
1569 fSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
1571 if ( myHelper->GetIsQuadratic() )
1573 // fill myHelper with medium nodes built by quadAlgo
1574 SMDS_ElemIteratorPtr fIt = fSM->GetSubMeshDS()->GetElements();
1575 while ( fIt->more() )
1576 myHelper->AddTLinks( dynamic_cast<const SMDS_MeshFace*>( fIt->next() ));
1584 //=======================================================================
1586 * \brief Returns a source EDGE of propagation to a given EDGE
1588 //=======================================================================
1590 TopoDS_Edge StdMeshers_Prism_3D::findPropagationSource( const TopoDS_Edge& E )
1592 if ( myPropagChains )
1593 for ( size_t i = 0; !myPropagChains[i].IsEmpty(); ++i )
1594 if ( myPropagChains[i].Contains( E ))
1595 return TopoDS::Edge( myPropagChains[i].FindKey( 1 ));
1597 return TopoDS_Edge();
1600 //=======================================================================
1601 //function : Evaluate
1603 //=======================================================================
1605 bool StdMeshers_Prism_3D::Evaluate(SMESH_Mesh& theMesh,
1606 const TopoDS_Shape& theShape,
1607 MapShapeNbElems& aResMap)
1609 if ( theShape.ShapeType() == TopAbs_COMPOUND )
1612 for ( TopoDS_Iterator it( theShape ); it.More(); it.Next() )
1613 ok &= Evaluate( theMesh, it.Value(), aResMap );
1616 SMESH_MesherHelper helper( theMesh );
1618 myHelper->SetSubShape( theShape );
1620 // find face contains only triangles
1621 vector < SMESH_subMesh * >meshFaces;
1622 TopTools_SequenceOfShape aFaces;
1623 int NumBase = 0, i = 0, NbQFs = 0;
1624 for (TopExp_Explorer exp(theShape, TopAbs_FACE); exp.More(); exp.Next()) {
1626 aFaces.Append(exp.Current());
1627 SMESH_subMesh *aSubMesh = theMesh.GetSubMesh(exp.Current());
1628 meshFaces.push_back(aSubMesh);
1629 MapShapeNbElemsItr anIt = aResMap.find(meshFaces[i-1]);
1630 if( anIt==aResMap.end() )
1631 return toSM( error( "Submesh can not be evaluated"));
1633 std::vector<int> aVec = (*anIt).second;
1634 int nbtri = Max(aVec[SMDSEntity_Triangle],aVec[SMDSEntity_Quad_Triangle]);
1635 int nbqua = Max(aVec[SMDSEntity_Quadrangle],aVec[SMDSEntity_Quad_Quadrangle]);
1636 if( nbtri==0 && nbqua>0 ) {
1645 std::vector<int> aResVec(SMDSEntity_Last);
1646 for(int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aResVec[i] = 0;
1647 SMESH_subMesh * sm = theMesh.GetSubMesh(theShape);
1648 aResMap.insert(std::make_pair(sm,aResVec));
1649 return toSM( error( "Submesh can not be evaluated" ));
1652 if(NumBase==0) NumBase = 1; // only quads => set 1 faces as base
1654 // find number of 1d elems for base face
1656 TopTools_MapOfShape Edges1;
1657 for (TopExp_Explorer exp(aFaces.Value(NumBase), TopAbs_EDGE); exp.More(); exp.Next()) {
1658 Edges1.Add(exp.Current());
1659 SMESH_subMesh *sm = theMesh.GetSubMesh(exp.Current());
1661 MapShapeNbElemsItr anIt = aResMap.find(sm);
1662 if( anIt == aResMap.end() ) continue;
1663 std::vector<int> aVec = (*anIt).second;
1664 nb1d += Max(aVec[SMDSEntity_Edge],aVec[SMDSEntity_Quad_Edge]);
1667 // find face opposite to base face
1669 for(i=1; i<=6; i++) {
1670 if(i==NumBase) continue;
1671 bool IsOpposite = true;
1672 for(TopExp_Explorer exp(aFaces.Value(i), TopAbs_EDGE); exp.More(); exp.Next()) {
1673 if( Edges1.Contains(exp.Current()) ) {
1683 // find number of 2d elems on side faces
1685 for(i=1; i<=6; i++) {
1686 if( i==OppNum || i==NumBase ) continue;
1687 MapShapeNbElemsItr anIt = aResMap.find( meshFaces[i-1] );
1688 if( anIt == aResMap.end() ) continue;
1689 std::vector<int> aVec = (*anIt).second;
1690 nb2d += Max(aVec[SMDSEntity_Quadrangle],aVec[SMDSEntity_Quad_Quadrangle]);
1693 MapShapeNbElemsItr anIt = aResMap.find( meshFaces[NumBase-1] );
1694 std::vector<int> aVec = (*anIt).second;
1695 bool IsQuadratic = (aVec[SMDSEntity_Quad_Triangle]>aVec[SMDSEntity_Triangle]) ||
1696 (aVec[SMDSEntity_Quad_Quadrangle]>aVec[SMDSEntity_Quadrangle]);
1697 int nb2d_face0_3 = Max(aVec[SMDSEntity_Triangle],aVec[SMDSEntity_Quad_Triangle]);
1698 int nb2d_face0_4 = Max(aVec[SMDSEntity_Quadrangle],aVec[SMDSEntity_Quad_Quadrangle]);
1699 int nb0d_face0 = aVec[SMDSEntity_Node];
1700 int nb1d_face0_int = ( nb2d_face0_3*3 + nb2d_face0_4*4 - nb1d ) / 2;
1702 std::vector<int> aResVec(SMDSEntity_Last);
1703 for(int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aResVec[i] = 0;
1705 aResVec[SMDSEntity_Quad_Penta] = nb2d_face0_3 * ( nb2d/nb1d );
1706 aResVec[SMDSEntity_Quad_Hexa] = nb2d_face0_4 * ( nb2d/nb1d );
1707 aResVec[SMDSEntity_Node] = nb0d_face0 * ( 2*nb2d/nb1d - 1 ) - nb1d_face0_int * nb2d/nb1d;
1710 aResVec[SMDSEntity_Node] = nb0d_face0 * ( nb2d/nb1d - 1 );
1711 aResVec[SMDSEntity_Penta] = nb2d_face0_3 * ( nb2d/nb1d );
1712 aResVec[SMDSEntity_Hexa] = nb2d_face0_4 * ( nb2d/nb1d );
1714 SMESH_subMesh * sm = theMesh.GetSubMesh(theShape);
1715 aResMap.insert(std::make_pair(sm,aResVec));
1720 //================================================================================
1722 * \brief Create prisms
1723 * \param columns - columns of nodes generated from nodes of a mesh face
1724 * \param helper - helper initialized by mesh and shape to add prisms to
1726 //================================================================================
1728 void StdMeshers_Prism_3D::AddPrisms( vector<const TNodeColumn*> & columns,
1729 SMESH_MesherHelper* helper)
1731 int nbNodes = columns.size();
1732 int nbZ = columns[0]->size();
1733 if ( nbZ < 2 ) return;
1735 // find out orientation
1736 bool isForward = true;
1737 SMDS_VolumeTool vTool;
1739 switch ( nbNodes ) {
1741 SMDS_VolumeOfNodes tmpPenta ( (*columns[0])[z-1], // bottom
1744 (*columns[0])[z], // top
1747 vTool.Set( &tmpPenta );
1748 isForward = vTool.IsForward();
1752 SMDS_VolumeOfNodes tmpHex( (*columns[0])[z-1], (*columns[1])[z-1], // bottom
1753 (*columns[2])[z-1], (*columns[3])[z-1],
1754 (*columns[0])[z], (*columns[1])[z], // top
1755 (*columns[2])[z], (*columns[3])[z] );
1756 vTool.Set( &tmpHex );
1757 isForward = vTool.IsForward();
1761 const int di = (nbNodes+1) / 3;
1762 SMDS_VolumeOfNodes tmpVol ( (*columns[0] )[z-1],
1763 (*columns[di] )[z-1],
1764 (*columns[2*di])[z-1],
1767 (*columns[2*di])[z] );
1768 vTool.Set( &tmpVol );
1769 isForward = vTool.IsForward();
1772 // vertical loop on columns
1774 helper->SetElementsOnShape( true );
1776 switch ( nbNodes ) {
1778 case 3: { // ---------- pentahedra
1779 const int i1 = isForward ? 1 : 2;
1780 const int i2 = isForward ? 2 : 1;
1781 for ( z = 1; z < nbZ; ++z )
1782 helper->AddVolume( (*columns[0 ])[z-1], // bottom
1783 (*columns[i1])[z-1],
1784 (*columns[i2])[z-1],
1785 (*columns[0 ])[z], // top
1787 (*columns[i2])[z] );
1790 case 4: { // ---------- hexahedra
1791 const int i1 = isForward ? 1 : 3;
1792 const int i3 = isForward ? 3 : 1;
1793 for ( z = 1; z < nbZ; ++z )
1794 helper->AddVolume( (*columns[0])[z-1], (*columns[i1])[z-1], // bottom
1795 (*columns[2])[z-1], (*columns[i3])[z-1],
1796 (*columns[0])[z], (*columns[i1])[z], // top
1797 (*columns[2])[z], (*columns[i3])[z] );
1800 case 6: { // ---------- octahedra
1801 const int iBase1 = isForward ? -1 : 0;
1802 const int iBase2 = isForward ? 0 :-1;
1803 for ( z = 1; z < nbZ; ++z )
1804 helper->AddVolume( (*columns[0])[z+iBase1], (*columns[1])[z+iBase1], // bottom or top
1805 (*columns[2])[z+iBase1], (*columns[3])[z+iBase1],
1806 (*columns[4])[z+iBase1], (*columns[5])[z+iBase1],
1807 (*columns[0])[z+iBase2], (*columns[1])[z+iBase2], // top or bottom
1808 (*columns[2])[z+iBase2], (*columns[3])[z+iBase2],
1809 (*columns[4])[z+iBase2], (*columns[5])[z+iBase2] );
1812 default: // ---------- polyhedra
1813 vector<int> quantities( 2 + nbNodes, 4 );
1814 quantities[0] = quantities[1] = nbNodes;
1815 columns.resize( nbNodes + 1 );
1816 columns[ nbNodes ] = columns[ 0 ];
1817 const int i1 = isForward ? 1 : 3;
1818 const int i3 = isForward ? 3 : 1;
1819 const int iBase1 = isForward ? -1 : 0;
1820 const int iBase2 = isForward ? 0 :-1;
1821 vector<const SMDS_MeshNode*> nodes( 2*nbNodes + 4*nbNodes);
1822 for ( z = 1; z < nbZ; ++z )
1824 for ( int i = 0; i < nbNodes; ++i ) {
1825 nodes[ i ] = (*columns[ i ])[z+iBase1]; // bottom or top
1826 nodes[ 2*nbNodes-i-1 ] = (*columns[ i ])[z+iBase2]; // top or bottom
1828 int di = 2*nbNodes + 4*i;
1829 nodes[ di+0 ] = (*columns[i ])[z ];
1830 nodes[ di+i1] = (*columns[i+1])[z ];
1831 nodes[ di+2 ] = (*columns[i+1])[z-1];
1832 nodes[ di+i3] = (*columns[i ])[z-1];
1834 helper->AddPolyhedralVolume( nodes, quantities );
1837 } // switch ( nbNodes )
1840 //================================================================================
1842 * \brief Find correspondence between bottom and top nodes
1843 * If elements on the bottom and top faces are topologically different,
1844 * and projection is possible and allowed, perform the projection
1845 * \retval bool - is a success or not
1847 //================================================================================
1849 bool StdMeshers_Prism_3D::assocOrProjBottom2Top( const gp_Trsf & bottomToTopTrsf,
1850 const Prism_3D::TPrismTopo& thePrism)
1852 SMESH_subMesh * botSM = myBlock.SubMesh( ID_BOT_FACE );
1853 SMESH_subMesh * topSM = myBlock.SubMesh( ID_TOP_FACE );
1855 SMESHDS_SubMesh * botSMDS = botSM->GetSubMeshDS();
1856 SMESHDS_SubMesh * topSMDS = topSM->GetSubMeshDS();
1858 if ( !botSMDS || botSMDS->NbElements() == 0 )
1860 _gen->Compute( *myHelper->GetMesh(), botSM->GetSubShape() );
1861 botSMDS = botSM->GetSubMeshDS();
1862 if ( !botSMDS || botSMDS->NbElements() == 0 )
1863 return toSM( error(TCom("No elements on face #") << botSM->GetId() ));
1866 bool needProject = !topSM->IsMeshComputed();
1867 if ( !needProject &&
1868 (botSMDS->NbElements() != topSMDS->NbElements() ||
1869 botSMDS->NbNodes() != topSMDS->NbNodes()))
1871 MESSAGE("nb elem bot " << botSMDS->NbElements() <<
1872 " top " << ( topSMDS ? topSMDS->NbElements() : 0 ));
1873 MESSAGE("nb node bot " << botSMDS->NbNodes() <<
1874 " top " << ( topSMDS ? topSMDS->NbNodes() : 0 ));
1875 return toSM( error(TCom("Mesh on faces #") << botSM->GetId()
1876 <<" and #"<< topSM->GetId() << " seems different" ));
1879 if ( 0/*needProject && !myProjectTriangles*/ )
1880 return toSM( error(TCom("Mesh on faces #") << botSM->GetId()
1881 <<" and #"<< topSM->GetId() << " seems different" ));
1882 ///RETURN_BAD_RESULT("Need to project but not allowed");
1886 return projectBottomToTop( bottomToTopTrsf );
1889 TopoDS_Face botFace = TopoDS::Face( myBlock.Shape( ID_BOT_FACE ));
1890 TopoDS_Face topFace = TopoDS::Face( myBlock.Shape( ID_TOP_FACE ));
1891 // associate top and bottom faces
1892 TAssocTool::TShapeShapeMap shape2ShapeMap;
1893 const bool sameTopo =
1894 TAssocTool::FindSubShapeAssociation( botFace, myBlock.Mesh(),
1895 topFace, myBlock.Mesh(),
1898 for ( size_t iQ = 0; iQ < thePrism.myWallQuads.size(); ++iQ )
1900 const Prism_3D::TQuadList& quadList = thePrism.myWallQuads[iQ];
1901 StdMeshers_FaceSidePtr botSide = quadList.front()->side[ QUAD_BOTTOM_SIDE ];
1902 StdMeshers_FaceSidePtr topSide = quadList.back ()->side[ QUAD_TOP_SIDE ];
1903 if ( botSide->NbEdges() == topSide->NbEdges() )
1905 for ( int iE = 0; iE < botSide->NbEdges(); ++iE )
1907 TAssocTool::InsertAssociation( botSide->Edge( iE ),
1908 topSide->Edge( iE ), shape2ShapeMap );
1909 TAssocTool::InsertAssociation( myHelper->IthVertex( 0, botSide->Edge( iE )),
1910 myHelper->IthVertex( 0, topSide->Edge( iE )),
1916 TopoDS_Vertex vb, vt;
1917 StdMeshers_FaceSidePtr sideB, sideT;
1918 vb = myHelper->IthVertex( 0, botSide->Edge( 0 ));
1919 vt = myHelper->IthVertex( 0, topSide->Edge( 0 ));
1920 sideB = quadList.front()->side[ QUAD_LEFT_SIDE ];
1921 sideT = quadList.back ()->side[ QUAD_LEFT_SIDE ];
1922 if ( vb.IsSame( sideB->FirstVertex() ) &&
1923 vt.IsSame( sideT->LastVertex() ))
1925 TAssocTool::InsertAssociation( botSide->Edge( 0 ),
1926 topSide->Edge( 0 ), shape2ShapeMap );
1927 TAssocTool::InsertAssociation( vb, vt, shape2ShapeMap );
1929 vb = myHelper->IthVertex( 1, botSide->Edge( botSide->NbEdges()-1 ));
1930 vt = myHelper->IthVertex( 1, topSide->Edge( topSide->NbEdges()-1 ));
1931 sideB = quadList.front()->side[ QUAD_RIGHT_SIDE ];
1932 sideT = quadList.back ()->side[ QUAD_RIGHT_SIDE ];
1933 if ( vb.IsSame( sideB->FirstVertex() ) &&
1934 vt.IsSame( sideT->LastVertex() ))
1936 TAssocTool::InsertAssociation( botSide->Edge( botSide->NbEdges()-1 ),
1937 topSide->Edge( topSide->NbEdges()-1 ),
1939 TAssocTool::InsertAssociation( vb, vt, shape2ShapeMap );
1944 // Find matching nodes of top and bottom faces
1945 TNodeNodeMap n2nMap;
1946 if ( ! TAssocTool::FindMatchingNodesOnFaces( botFace, myBlock.Mesh(),
1947 topFace, myBlock.Mesh(),
1948 shape2ShapeMap, n2nMap ))
1951 return toSM( error(TCom("Mesh on faces #") << botSM->GetId()
1952 <<" and #"<< topSM->GetId() << " seems different" ));
1954 return toSM( error(TCom("Topology of faces #") << botSM->GetId()
1955 <<" and #"<< topSM->GetId() << " seems different" ));
1958 // Fill myBotToColumnMap
1960 int zSize = myBlock.VerticalSize();
1962 TNodeNodeMap::iterator bN_tN = n2nMap.begin();
1963 for ( ; bN_tN != n2nMap.end(); ++bN_tN )
1965 const SMDS_MeshNode* botNode = bN_tN->first;
1966 const SMDS_MeshNode* topNode = bN_tN->second;
1967 if ( botNode->GetPosition()->GetTypeOfPosition() != SMDS_TOP_FACE )
1968 continue; // wall columns are contained in myBlock
1969 // create node column
1970 Prism_3D::TNode bN( botNode );
1971 TNode2ColumnMap::iterator bN_col =
1972 myBotToColumnMap.insert( make_pair ( bN, TNodeColumn() )).first;
1973 TNodeColumn & column = bN_col->second;
1974 column.resize( zSize );
1975 column.front() = botNode;
1976 column.back() = topNode;
1981 //================================================================================
1983 * \brief Remove quadrangles from the top face and
1984 * create triangles there by projection from the bottom
1985 * \retval bool - a success or not
1987 //================================================================================
1989 bool StdMeshers_Prism_3D::projectBottomToTop( const gp_Trsf & bottomToTopTrsf )
1991 SMESHDS_Mesh* meshDS = myBlock.MeshDS();
1992 SMESH_subMesh * botSM = myBlock.SubMesh( ID_BOT_FACE );
1993 SMESH_subMesh * topSM = myBlock.SubMesh( ID_TOP_FACE );
1995 SMESHDS_SubMesh * botSMDS = botSM->GetSubMeshDS();
1996 SMESHDS_SubMesh * topSMDS = topSM->GetSubMeshDS();
1998 if ( topSMDS && topSMDS->NbElements() > 0 )
1999 topSM->ComputeStateEngine( SMESH_subMesh::CLEAN );
2001 const TopoDS_Face& botFace = TopoDS::Face( myBlock.Shape( ID_BOT_FACE )); // oriented within
2002 const TopoDS_Face& topFace = TopoDS::Face( myBlock.Shape( ID_TOP_FACE )); // the 3D SHAPE
2003 int topFaceID = meshDS->ShapeToIndex( topFace );
2005 SMESH_MesherHelper botHelper( *myHelper->GetMesh() );
2006 botHelper.SetSubShape( botFace );
2007 botHelper.ToFixNodeParameters( true );
2009 SMESH_MesherHelper topHelper( *myHelper->GetMesh() );
2010 topHelper.SetSubShape( topFace );
2011 topHelper.ToFixNodeParameters( true );
2012 double distXYZ[4], fixTol = 10 * topHelper.MaxTolerance( topFace );
2014 // Fill myBotToColumnMap
2016 int zSize = myBlock.VerticalSize();
2017 Prism_3D::TNode prevTNode;
2018 SMDS_NodeIteratorPtr nIt = botSMDS->GetNodes();
2019 while ( nIt->more() )
2021 const SMDS_MeshNode* botNode = nIt->next();
2022 const SMDS_MeshNode* topNode = 0;
2023 if ( botNode->GetPosition()->GetTypeOfPosition() != SMDS_TOP_FACE )
2024 continue; // strange
2026 Prism_3D::TNode bN( botNode );
2027 if ( bottomToTopTrsf.Form() == gp_Identity )
2029 // compute bottom node params
2030 gp_XYZ paramHint(-1,-1,-1);
2031 if ( prevTNode.IsNeighbor( bN ))
2033 paramHint = prevTNode.GetParams();
2034 // double tol = 1e-2 * ( prevTNode.GetCoords() - bN.GetCoords() ).Modulus();
2035 // myBlock.SetTolerance( Min( myBlock.GetTolerance(), tol ));
2037 if ( !myBlock.ComputeParameters( bN.GetCoords(), bN.ChangeParams(),
2038 ID_BOT_FACE, paramHint ))
2039 return toSM( error(TCom("Can't compute normalized parameters for node ")
2040 << botNode->GetID() << " on the face #"<< botSM->GetId() ));
2042 // compute top node coords
2043 gp_XYZ topXYZ; gp_XY topUV;
2044 if ( !myBlock.FacePoint( ID_TOP_FACE, bN.GetParams(), topXYZ ) ||
2045 !myBlock.FaceUV ( ID_TOP_FACE, bN.GetParams(), topUV ))
2046 return toSM( error(TCom("Can't compute coordinates "
2047 "by normalized parameters on the face #")<< topSM->GetId() ));
2048 topNode = meshDS->AddNode( topXYZ.X(),topXYZ.Y(),topXYZ.Z() );
2049 meshDS->SetNodeOnFace( topNode, topFaceID, topUV.X(), topUV.Y() );
2051 else // use bottomToTopTrsf
2053 gp_XYZ coords = bN.GetCoords();
2054 bottomToTopTrsf.Transforms( coords );
2055 topNode = meshDS->AddNode( coords.X(), coords.Y(), coords.Z() );
2056 gp_XY topUV = botHelper.GetNodeUV( botFace, botNode, 0, &checkUV );
2057 meshDS->SetNodeOnFace( topNode, topFaceID, topUV.X(), topUV.Y() );
2059 if ( topHelper.CheckNodeUV( topFace, topNode, topUV, fixTol, /*force=*/false, distXYZ ) &&
2060 distXYZ[0] > fixTol && distXYZ[0] < fixTol * 1e+3 )
2061 meshDS->MoveNode( topNode, distXYZ[1], distXYZ[2], distXYZ[3] ); // transform can be inaccurate
2063 // create node column
2064 TNode2ColumnMap::iterator bN_col =
2065 myBotToColumnMap.insert( make_pair ( bN, TNodeColumn() )).first;
2066 TNodeColumn & column = bN_col->second;
2067 column.resize( zSize );
2068 column.front() = botNode;
2069 column.back() = topNode;
2074 const bool oldSetElemsOnShape = myHelper->SetElementsOnShape( false );
2076 // care of orientation;
2077 // if the bottom faces is orienetd OK then top faces must be reversed
2078 bool reverseTop = true;
2079 if ( myHelper->NbAncestors( botFace, *myBlock.Mesh(), TopAbs_SOLID ) > 1 )
2080 reverseTop = ! myHelper->IsReversedSubMesh( botFace );
2081 int iFrw, iRev, *iPtr = &( reverseTop ? iRev : iFrw );
2083 // loop on bottom mesh faces
2084 SMDS_ElemIteratorPtr faceIt = botSMDS->GetElements();
2085 vector< const SMDS_MeshNode* > nodes;
2086 while ( faceIt->more() )
2088 const SMDS_MeshElement* face = faceIt->next();
2089 if ( !face || face->GetType() != SMDSAbs_Face )
2092 // find top node in columns for each bottom node
2093 int nbNodes = face->NbCornerNodes();
2094 nodes.resize( nbNodes );
2095 for ( iFrw = 0, iRev = nbNodes-1; iFrw < nbNodes; ++iFrw, --iRev )
2097 const SMDS_MeshNode* n = face->GetNode( *iPtr );
2098 if ( n->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE ) {
2099 TNode2ColumnMap::iterator bot_column = myBotToColumnMap.find( n );
2100 if ( bot_column == myBotToColumnMap.end() )
2101 return toSM( error(TCom("No nodes found above node ") << n->GetID() ));
2102 nodes[ iFrw ] = bot_column->second.back();
2105 const TNodeColumn* column = myBlock.GetNodeColumn( n );
2107 return toSM( error(TCom("No side nodes found above node ") << n->GetID() ));
2108 nodes[ iFrw ] = column->back();
2111 SMDS_MeshElement* newFace = 0;
2112 switch ( nbNodes ) {
2115 newFace = myHelper->AddFace(nodes[0], nodes[1], nodes[2]);
2119 newFace = myHelper->AddFace( nodes[0], nodes[1], nodes[2], nodes[3] );
2123 newFace = meshDS->AddPolygonalFace( nodes );
2126 meshDS->SetMeshElementOnShape( newFace, topFaceID );
2129 myHelper->SetElementsOnShape( oldSetElemsOnShape );
2134 //=======================================================================
2135 //function : project2dMesh
2136 //purpose : Project mesh faces from a source FACE of one prism (theSrcFace)
2137 // to a source FACE of another prism (theTgtFace)
2138 //=======================================================================
2140 bool StdMeshers_Prism_3D::project2dMesh(const TopoDS_Face& theSrcFace,
2141 const TopoDS_Face& theTgtFace)
2143 TProjction2dAlgo* projector2D = TProjction2dAlgo::instance( this );
2144 projector2D->myHyp.SetSourceFace( theSrcFace );
2145 bool ok = projector2D->Compute( *myHelper->GetMesh(), theTgtFace );
2147 SMESH_subMesh* tgtSM = myHelper->GetMesh()->GetSubMesh( theTgtFace );
2148 tgtSM->ComputeStateEngine ( SMESH_subMesh::CHECK_COMPUTE_STATE );
2149 tgtSM->ComputeSubMeshStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
2154 //================================================================================
2156 * \brief Set projection coordinates of a node to a face and it's sub-shapes
2157 * \param faceID - the face given by in-block ID
2158 * \param params - node normalized parameters
2159 * \retval bool - is a success
2161 //================================================================================
2163 bool StdMeshers_Prism_3D::setFaceAndEdgesXYZ( const int faceID, const gp_XYZ& params, int z )
2165 // find base and top edges of the face
2166 enum { BASE = 0, TOP, LEFT, RIGHT };
2167 vector< int > edgeVec; // 0-base, 1-top
2168 SMESH_Block::GetFaceEdgesIDs( faceID, edgeVec );
2170 myBlock.EdgePoint( edgeVec[ BASE ], params, myShapeXYZ[ edgeVec[ BASE ]]);
2171 myBlock.EdgePoint( edgeVec[ TOP ], params, myShapeXYZ[ edgeVec[ TOP ]]);
2173 SHOWYXZ("\nparams ", params);
2174 SHOWYXZ("TOP is " <<edgeVec[ TOP ], myShapeXYZ[ edgeVec[ TOP]]);
2175 SHOWYXZ("BASE is "<<edgeVec[ BASE], myShapeXYZ[ edgeVec[ BASE]]);
2177 if ( faceID == SMESH_Block::ID_Fx0z || faceID == SMESH_Block::ID_Fx1z )
2179 myBlock.EdgePoint( edgeVec[ LEFT ], params, myShapeXYZ[ edgeVec[ LEFT ]]);
2180 myBlock.EdgePoint( edgeVec[ RIGHT ], params, myShapeXYZ[ edgeVec[ RIGHT ]]);
2182 SHOWYXZ("VER "<<edgeVec[ LEFT], myShapeXYZ[ edgeVec[ LEFT]]);
2183 SHOWYXZ("VER "<<edgeVec[ RIGHT], myShapeXYZ[ edgeVec[ RIGHT]]);
2185 myBlock.FacePoint( faceID, params, myShapeXYZ[ faceID ]);
2186 SHOWYXZ("FacePoint "<<faceID, myShapeXYZ[ faceID]);
2191 //=======================================================================
2193 //purpose : If (!isOK), sets the error to a sub-mesh of a current SOLID
2194 //=======================================================================
2196 bool StdMeshers_Prism_3D::toSM( bool isOK )
2198 if ( mySetErrorToSM &&
2201 !myHelper->GetSubShape().IsNull() &&
2202 myHelper->GetSubShape().ShapeType() == TopAbs_SOLID)
2204 SMESH_subMesh* sm = myHelper->GetMesh()->GetSubMesh( myHelper->GetSubShape() );
2205 sm->GetComputeError() = this->GetComputeError();
2206 // clear error in order not to return it twice
2207 _error = COMPERR_OK;
2213 //=======================================================================
2214 //function : shapeID
2215 //purpose : Return index of a shape
2216 //=======================================================================
2218 int StdMeshers_Prism_3D::shapeID( const TopoDS_Shape& S )
2220 if ( S.IsNull() ) return 0;
2221 if ( !myHelper ) return -3;
2222 return myHelper->GetMeshDS()->ShapeToIndex( S );
2225 namespace // utils used by StdMeshers_Prism_3D::IsApplicable()
2227 struct EdgeWithNeighbors
2231 EdgeWithNeighbors(const TopoDS_Edge& E, int iE, int nbE, int shift = 0 ):
2233 _iL( SMESH_MesherHelper::WrapIndex( iE-1, nbE ) + shift ),
2234 _iR( SMESH_MesherHelper::WrapIndex( iE+1, nbE ) + shift )
2237 EdgeWithNeighbors() {}
2242 TopTools_IndexedMapOfShape *_faces; // pointer because its copy constructor is private
2243 TopoDS_Edge _topEdge;
2244 vector< EdgeWithNeighbors >*_edges;
2246 vector< bool > _isCheckedEdge;
2247 int _nbCheckedEdges; // nb of EDGEs whose location is defined
2248 PrismSide *_leftSide;
2249 PrismSide *_rightSide;
2250 const TopoDS_Edge& Edge( int i ) const
2252 return (*_edges)[ i ]._edge;
2254 int FindEdge( const TopoDS_Edge& E ) const
2256 for ( size_t i = 0; i < _edges->size(); ++i )
2257 if ( E.IsSame( Edge( i ))) return i;
2261 //--------------------------------------------------------------------------------
2263 * \brief Return ordered edges of a face
2265 bool getEdges( const TopoDS_Face& face,
2266 vector< EdgeWithNeighbors > & edges,
2267 const bool noHolesAllowed)
2269 list< TopoDS_Edge > ee;
2270 list< int > nbEdgesInWires;
2271 int nbW = SMESH_Block::GetOrderedEdges( face, ee, nbEdgesInWires );
2272 if ( nbW > 1 && noHolesAllowed )
2276 list< TopoDS_Edge >::iterator e = ee.begin();
2277 list< int >::iterator nbE = nbEdgesInWires.begin();
2278 for ( ; nbE != nbEdgesInWires.end(); ++nbE )
2279 for ( iE = 0; iE < *nbE; ++e, ++iE )
2280 if ( SMESH_Algo::isDegenerated( *e ))
2288 e->Orientation( TopAbs_FORWARD ); // for operator==() to work
2293 for ( nbE = nbEdgesInWires.begin(); nbE != nbEdgesInWires.end(); ++nbE )
2295 for ( iE = 0; iE < *nbE; ++e, ++iE )
2296 edges.push_back( EdgeWithNeighbors( *e, iE, *nbE, nbTot ));
2299 return edges.size();
2301 //--------------------------------------------------------------------------------
2303 * \brief Return another faces sharing an edge
2305 const TopoDS_Shape & getAnotherFace( const TopoDS_Face& face,
2306 const TopoDS_Edge& edge,
2307 TopTools_IndexedDataMapOfShapeListOfShape& facesOfEdge)
2309 TopTools_ListIteratorOfListOfShape faceIt( facesOfEdge.FindFromKey( edge ));
2310 for ( ; faceIt.More(); faceIt.Next() )
2311 if ( !face.IsSame( faceIt.Value() ))
2312 return faceIt.Value();
2317 //================================================================================
2319 * \brief Return true if the algorithm can mesh this shape
2320 * \param [in] aShape - shape to check
2321 * \param [in] toCheckAll - if true, this check returns OK if all shapes are OK,
2322 * else, returns OK if at least one shape is OK
2324 //================================================================================
2326 bool StdMeshers_Prism_3D::IsApplicable(const TopoDS_Shape & shape, bool toCheckAll)
2328 TopExp_Explorer sExp( shape, TopAbs_SOLID );
2332 for ( ; sExp.More(); sExp.Next() )
2336 TopExp_Explorer shExp( sExp.Current(), TopAbs_SHELL );
2337 if ( shExp.More() ) {
2338 shell = shExp.Current();
2343 if ( shell.IsNull() ) {
2344 if ( toCheckAll ) return false;
2348 TopTools_IndexedMapOfShape allFaces;
2349 TopExp::MapShapes( shell, TopAbs_FACE, allFaces );
2350 if ( allFaces.Extent() < 3 ) {
2351 if ( toCheckAll ) return false;
2355 if ( allFaces.Extent() == 6 )
2357 TopTools_IndexedMapOfOrientedShape map;
2358 bool isBox = SMESH_Block::FindBlockShapes( TopoDS::Shell( shell ),
2359 TopoDS_Vertex(), TopoDS_Vertex(), map );
2361 if ( !toCheckAll ) return true;
2366 TopTools_IndexedMapOfShape allShapes;
2367 TopExp::MapShapes( shape, allShapes );
2370 TopTools_IndexedDataMapOfShapeListOfShape facesOfEdge;
2371 TopTools_ListIteratorOfListOfShape faceIt;
2372 TopExp::MapShapesAndAncestors( sExp.Current(), TopAbs_EDGE, TopAbs_FACE , facesOfEdge );
2373 if ( facesOfEdge.IsEmpty() ) {
2374 if ( toCheckAll ) return false;
2378 typedef vector< EdgeWithNeighbors > TEdgeWithNeighborsVec;
2379 vector< TEdgeWithNeighborsVec > faceEdgesVec( allFaces.Extent() + 1 );
2380 TopTools_IndexedMapOfShape* facesOfSide = new TopTools_IndexedMapOfShape[ faceEdgesVec.size() ];
2381 SMESHUtils::ArrayDeleter<TopTools_IndexedMapOfShape> delFacesOfSide( facesOfSide );
2383 // try to use each face as a bottom one
2384 bool prismDetected = false;
2385 for ( int iF = 1; iF < allFaces.Extent() && !prismDetected; ++iF )
2387 const TopoDS_Face& botF = TopoDS::Face( allFaces( iF ));
2389 TEdgeWithNeighborsVec& botEdges = faceEdgesVec[ iF ];
2390 if ( botEdges.empty() )
2392 if ( !getEdges( botF, botEdges, /*noHoles=*/false ))
2394 if ( allFaces.Extent()-1 <= (int) botEdges.size() )
2395 continue; // all faces are adjacent to botF - no top FACE
2397 // init data of side FACEs
2398 vector< PrismSide > sides( botEdges.size() );
2399 for ( int iS = 0; iS < botEdges.size(); ++iS )
2401 sides[ iS ]._topEdge = botEdges[ iS ]._edge;
2402 sides[ iS ]._face = botF;
2403 sides[ iS ]._leftSide = & sides[ botEdges[ iS ]._iR ];
2404 sides[ iS ]._rightSide = & sides[ botEdges[ iS ]._iL ];
2405 sides[ iS ]._faces = & facesOfSide[ iS ];
2406 sides[ iS ]._faces->Clear();
2409 bool isOK = true; // ok for a current botF
2410 bool isAdvanced = true;
2411 int nbFoundSideFaces = 0;
2412 for ( int iLoop = 0; isOK && isAdvanced; ++iLoop )
2415 for ( size_t iS = 0; iS < sides.size() && isOK; ++iS )
2417 PrismSide& side = sides[ iS ];
2418 if ( side._face.IsNull() )
2420 if ( side._topEdge.IsNull() )
2422 // find vertical EDGEs --- EGDEs shared with neighbor side FACEs
2423 for ( int is2nd = 0; is2nd < 2 && isOK; ++is2nd ) // 2 adjacent neighbors
2425 int di = is2nd ? 1 : -1;
2426 const PrismSide* adjSide = is2nd ? side._rightSide : side._leftSide;
2427 for ( size_t i = 1; i < side._edges->size(); ++i )
2429 int iE = SMESH_MesherHelper::WrapIndex( i*di + side._iBotEdge, side._edges->size());
2430 if ( side._isCheckedEdge[ iE ] ) continue;
2431 const TopoDS_Edge& vertE = side.Edge( iE );
2432 const TopoDS_Shape& neighborF = getAnotherFace( side._face, vertE, facesOfEdge );
2433 bool isEdgeShared = adjSide->_faces->Contains( neighborF );
2437 side._isCheckedEdge[ iE ] = true;
2438 side._nbCheckedEdges++;
2439 int nbNotCheckedE = side._edges->size() - side._nbCheckedEdges;
2440 if ( nbNotCheckedE == 1 )
2445 if ( i == 1 && iLoop == 0 ) isOK = false;
2451 int nbNotCheckedE = side._edges->size() - side._nbCheckedEdges;
2452 if ( nbNotCheckedE == 1 )
2454 vector<bool>::iterator ii = std::find( side._isCheckedEdge.begin(),
2455 side._isCheckedEdge.end(), false );
2456 if ( ii != side._isCheckedEdge.end() )
2458 size_t iE = std::distance( side._isCheckedEdge.begin(), ii );
2459 side._topEdge = side.Edge( iE );
2462 isOK = ( nbNotCheckedE >= 1 );
2464 else //if ( !side._topEdge.IsNull() )
2466 // get a next face of a side
2467 const TopoDS_Shape& f = getAnotherFace( side._face, side._topEdge, facesOfEdge );
2468 side._faces->Add( f );
2470 if ( f.IsSame( side._face ) || // _topEdge is a seam
2471 SMESH_MesherHelper::Count( f, TopAbs_WIRE, false ) != 1 )
2475 else if ( side._leftSide != & side ) // not closed side face
2477 if ( side._leftSide->_faces->Contains( f ))
2480 side._leftSide->_face.Nullify();
2481 side._leftSide->_topEdge.Nullify();
2483 if ( side._rightSide->_faces->Contains( f ))
2486 side._rightSide->_face.Nullify();
2487 side._rightSide->_topEdge.Nullify();
2492 side._face.Nullify();
2493 side._topEdge.Nullify();
2496 side._face = TopoDS::Face( f );
2497 int faceID = allFaces.FindIndex( side._face );
2498 side._edges = & faceEdgesVec[ faceID ];
2499 if ( side._edges->empty() )
2500 if ( !getEdges( side._face, * side._edges, /*noHoles=*/true ))
2502 const int nbE = side._edges->size();
2507 side._iBotEdge = side.FindEdge( side._topEdge );
2508 side._isCheckedEdge.clear();
2509 side._isCheckedEdge.resize( nbE, false );
2510 side._isCheckedEdge[ side._iBotEdge ] = true;
2511 side._nbCheckedEdges = 1; // bottom EDGE is known
2513 side._topEdge.Nullify();
2514 isOK = ( !side._edges->empty() || side._faces->Extent() > 1 );
2516 } //if ( !side._topEdge.IsNull() )
2518 } // loop on prism sides
2520 if ( nbFoundSideFaces > allFaces.Extent() )
2524 if ( iLoop > allFaces.Extent() * 10 )
2528 cerr << "BUG: infinite loop in StdMeshers_Prism_3D::IsApplicable()" << endl;
2531 } // while isAdvanced
2533 if ( isOK && sides[0]._faces->Extent() > 1 )
2535 const int nbFaces = sides[0]._faces->Extent();
2536 if ( botEdges.size() == 1 ) // cylinder
2538 prismDetected = ( nbFaces == allFaces.Extent()-1 );
2542 const TopoDS_Shape& topFace = sides[0]._faces->FindKey( nbFaces );
2544 for ( iS = 1; iS < sides.size(); ++iS )
2545 if ( !sides[ iS ]._faces->Contains( topFace ))
2547 prismDetected = ( iS == sides.size() );
2550 } // loop on allFaces
2552 if ( !prismDetected && toCheckAll ) return false;
2553 if ( prismDetected && !toCheckAll ) return true;
2562 //================================================================================
2564 * \brief Return true if this node and other one belong to one face
2566 //================================================================================
2568 bool Prism_3D::TNode::IsNeighbor( const Prism_3D::TNode& other ) const
2570 if ( !other.myNode || !myNode ) return false;
2572 SMDS_ElemIteratorPtr fIt = other.myNode->GetInverseElementIterator(SMDSAbs_Face);
2573 while ( fIt->more() )
2574 if ( fIt->next()->GetNodeIndex( myNode ) >= 0 )
2579 //================================================================================
2581 * \brief Prism initialization
2583 //================================================================================
2585 void TPrismTopo::Clear()
2587 myShape3D.Nullify();
2590 myWallQuads.clear();
2591 myBottomEdges.clear();
2592 myNbEdgesInWires.clear();
2593 myWallQuads.clear();
2596 //================================================================================
2598 * \brief Set upside-down
2600 //================================================================================
2602 void TPrismTopo::SetUpsideDown()
2604 std::swap( myBottom, myTop );
2605 myBottomEdges.clear();
2606 std::reverse( myBottomEdges.begin(), myBottomEdges.end() );
2607 for ( size_t i = 0; i < myWallQuads.size(); ++i )
2609 myWallQuads[i].reverse();
2610 TQuadList::iterator q = myWallQuads[i].begin();
2611 for ( ; q != myWallQuads[i].end(); ++q )
2613 (*q)->shift( 2, /*keepUnitOri=*/true );
2615 myBottomEdges.push_back( myWallQuads[i].front()->side[ QUAD_BOTTOM_SIDE ].grid->Edge(0) );
2619 } // namespace Prism_3D
2621 //================================================================================
2623 * \brief Constructor. Initialization is needed
2625 //================================================================================
2627 StdMeshers_PrismAsBlock::StdMeshers_PrismAsBlock()
2632 StdMeshers_PrismAsBlock::~StdMeshers_PrismAsBlock()
2636 void StdMeshers_PrismAsBlock::Clear()
2639 myShapeIDMap.Clear();
2643 delete mySide; mySide = 0;
2645 myParam2ColumnMaps.clear();
2646 myShapeIndex2ColumnMap.clear();
2649 //=======================================================================
2650 //function : initPrism
2651 //purpose : Analyse shape geometry and mesh.
2652 // If there are triangles on one of faces, it becomes 'bottom'.
2653 // thePrism.myBottom can be already set up.
2654 //=======================================================================
2656 bool StdMeshers_Prism_3D::initPrism(Prism_3D::TPrismTopo& thePrism,
2657 const TopoDS_Shape& shape3D)
2659 myHelper->SetSubShape( shape3D );
2661 SMESH_subMesh* mainSubMesh = myHelper->GetMesh()->GetSubMeshContaining( shape3D );
2662 if ( !mainSubMesh ) return toSM( error(COMPERR_BAD_INPUT_MESH,"Null submesh of shape3D"));
2664 // detect not-quad FACE sub-meshes of the 3D SHAPE
2665 list< SMESH_subMesh* > notQuadGeomSubMesh;
2666 list< SMESH_subMesh* > notQuadElemSubMesh;
2669 SMESH_subMesh* anyFaceSM = 0;
2670 SMESH_subMeshIteratorPtr smIt = mainSubMesh->getDependsOnIterator(false,true);
2671 while ( smIt->more() )
2673 SMESH_subMesh* sm = smIt->next();
2674 const TopoDS_Shape& face = sm->GetSubShape();
2675 if ( face.ShapeType() > TopAbs_FACE ) break;
2676 else if ( face.ShapeType() < TopAbs_FACE ) continue;
2680 // is quadrangle FACE?
2681 list< TopoDS_Edge > orderedEdges;
2682 list< int > nbEdgesInWires;
2683 int nbWires = SMESH_Block::GetOrderedEdges( TopoDS::Face( face ), orderedEdges,
2685 if ( nbWires != 1 || nbEdgesInWires.front() != 4 )
2686 notQuadGeomSubMesh.push_back( sm );
2688 // look for not quadrangle mesh elements
2689 if ( SMESHDS_SubMesh* smDS = sm->GetSubMeshDS() )
2690 if ( !myHelper->IsSameElemGeometry( smDS, SMDSGeom_QUADRANGLE ))
2691 notQuadElemSubMesh.push_back( sm );
2694 int nbNotQuadMeshed = notQuadElemSubMesh.size();
2695 int nbNotQuad = notQuadGeomSubMesh.size();
2696 bool hasNotQuad = ( nbNotQuad || nbNotQuadMeshed );
2699 if ( nbNotQuadMeshed > 2 )
2701 return toSM( error(COMPERR_BAD_INPUT_MESH,
2702 TCom("More than 2 faces with not quadrangle elements: ")
2703 <<nbNotQuadMeshed));
2705 if ( nbNotQuad > 2 || !thePrism.myBottom.IsNull() )
2707 // Issue 0020843 - one of side FACEs is quasi-quadrilateral (not 4 EDGEs).
2708 // Remove from notQuadGeomSubMesh faces meshed with regular grid
2709 int nbQuasiQuads = removeQuasiQuads( notQuadGeomSubMesh, myHelper,
2710 TQuadrangleAlgo::instance(this,myHelper) );
2711 nbNotQuad -= nbQuasiQuads;
2712 if ( nbNotQuad > 2 )
2713 return toSM( error(COMPERR_BAD_SHAPE,
2714 TCom("More than 2 not quadrilateral faces: ") <<nbNotQuad));
2715 hasNotQuad = ( nbNotQuad || nbNotQuadMeshed );
2718 // Analyse mesh and topology of FACEs: choose the bottom sub-mesh.
2719 // If there are not quadrangle FACEs, they are top and bottom ones.
2720 // Not quadrangle FACEs must be only on top and bottom.
2722 SMESH_subMesh * botSM = 0;
2723 SMESH_subMesh * topSM = 0;
2725 if ( hasNotQuad ) // can choose a bottom FACE
2727 if ( nbNotQuadMeshed > 0 ) botSM = notQuadElemSubMesh.front();
2728 else botSM = notQuadGeomSubMesh.front();
2729 if ( nbNotQuadMeshed > 1 ) topSM = notQuadElemSubMesh.back();
2730 else if ( nbNotQuad > 1 ) topSM = notQuadGeomSubMesh.back();
2732 if ( topSM == botSM ) {
2733 if ( nbNotQuadMeshed > 1 ) topSM = notQuadElemSubMesh.front();
2734 else topSM = notQuadGeomSubMesh.front();
2737 // detect mesh triangles on wall FACEs
2738 if ( nbNotQuad == 2 && nbNotQuadMeshed > 0 ) {
2740 if ( nbNotQuadMeshed == 1 )
2741 ok = ( find( notQuadGeomSubMesh.begin(),
2742 notQuadGeomSubMesh.end(), botSM ) != notQuadGeomSubMesh.end() );
2744 ok = ( notQuadGeomSubMesh == notQuadElemSubMesh );
2746 return toSM( error(COMPERR_BAD_INPUT_MESH,
2747 "Side face meshed with not quadrangle elements"));
2751 thePrism.myNotQuadOnTop = ( nbNotQuadMeshed > 1 );
2753 // use thePrism.myBottom
2754 if ( !thePrism.myBottom.IsNull() )
2757 if ( ! botSM->GetSubShape().IsSame( thePrism.myBottom )) {
2758 std::swap( botSM, topSM );
2759 if ( !botSM || ! botSM->GetSubShape().IsSame( thePrism.myBottom ))
2760 return toSM( error( COMPERR_BAD_INPUT_MESH,
2761 "Incompatible non-structured sub-meshes"));
2765 botSM = myHelper->GetMesh()->GetSubMesh( thePrism.myBottom );
2768 else if ( !botSM ) // find a proper bottom
2770 // composite walls or not prism shape
2771 for ( TopExp_Explorer f( shape3D, TopAbs_FACE ); f.More(); f.Next() )
2773 int minNbFaces = 2 + myHelper->Count( f.Current(), TopAbs_EDGE, false);
2774 if ( nbFaces >= minNbFaces)
2777 thePrism.myBottom = TopoDS::Face( f.Current() );
2778 if ( initPrism( thePrism, shape3D ))
2781 return toSM( error( COMPERR_BAD_SHAPE ));
2785 // find vertex 000 - the one with smallest coordinates (for easy DEBUG :-)
2787 double minVal = DBL_MAX, minX, val;
2788 for ( TopExp_Explorer exp( botSM->GetSubShape(), TopAbs_VERTEX );
2789 exp.More(); exp.Next() )
2791 const TopoDS_Vertex& v = TopoDS::Vertex( exp.Current() );
2792 gp_Pnt P = BRep_Tool::Pnt( v );
2793 val = P.X() + P.Y() + P.Z();
2794 if ( val < minVal || ( val == minVal && P.X() < minX )) {
2801 thePrism.myShape3D = shape3D;
2802 if ( thePrism.myBottom.IsNull() )
2803 thePrism.myBottom = TopoDS::Face( botSM->GetSubShape() );
2804 thePrism.myBottom.Orientation( myHelper->GetSubShapeOri( shape3D,
2805 thePrism.myBottom ));
2806 // Get ordered bottom edges
2807 TopoDS_Face reverseBottom = // to have order of top EDGEs as in the top FACE
2808 TopoDS::Face( thePrism.myBottom.Reversed() );
2809 SMESH_Block::GetOrderedEdges( reverseBottom,
2810 thePrism.myBottomEdges,
2811 thePrism.myNbEdgesInWires, V000 );
2813 // Get Wall faces corresponding to the ordered bottom edges and the top FACE
2814 if ( !getWallFaces( thePrism, nbFaces ))
2815 return false; //toSM( error(COMPERR_BAD_SHAPE, "Can't find side faces"));
2819 if ( !thePrism.myTop.IsSame( topSM->GetSubShape() ))
2821 (notQuadGeomSubMesh.empty() ? COMPERR_BAD_INPUT_MESH : COMPERR_BAD_SHAPE,
2822 "Non-quadrilateral faces are not opposite"));
2824 // check that the found top and bottom FACEs are opposite
2825 list< TopoDS_Edge >::iterator edge = thePrism.myBottomEdges.begin();
2826 for ( ; edge != thePrism.myBottomEdges.end(); ++edge )
2827 if ( myHelper->IsSubShape( *edge, thePrism.myTop ))
2829 (notQuadGeomSubMesh.empty() ? COMPERR_BAD_INPUT_MESH : COMPERR_BAD_SHAPE,
2830 "Non-quadrilateral faces are not opposite"));
2833 if ( thePrism.myBottomEdges.size() > thePrism.myWallQuads.size() )
2835 // composite bottom sides => set thePrism upside-down
2836 thePrism.SetUpsideDown();
2842 //================================================================================
2844 * \brief Initialization.
2845 * \param helper - helper loaded with mesh and 3D shape
2846 * \param thePrism - a prism data
2847 * \retval bool - false if a mesh or a shape are KO
2849 //================================================================================
2851 bool StdMeshers_PrismAsBlock::Init(SMESH_MesherHelper* helper,
2852 const Prism_3D::TPrismTopo& thePrism)
2855 SMESHDS_Mesh* meshDS = myHelper->GetMeshDS();
2856 SMESH_Mesh* mesh = myHelper->GetMesh();
2859 delete mySide; mySide = 0;
2861 vector< TSideFace* > sideFaces( NB_WALL_FACES, 0 );
2862 vector< pair< double, double> > params( NB_WALL_FACES );
2863 mySide = new TSideFace( *mesh, sideFaces, params );
2866 SMESH_Block::init();
2867 myShapeIDMap.Clear();
2868 myShapeIndex2ColumnMap.clear();
2870 int wallFaceIds[ NB_WALL_FACES ] = { // to walk around a block
2871 SMESH_Block::ID_Fx0z, SMESH_Block::ID_F1yz,
2872 SMESH_Block::ID_Fx1z, SMESH_Block::ID_F0yz
2875 myError = SMESH_ComputeError::New();
2877 myNotQuadOnTop = thePrism.myNotQuadOnTop;
2879 // Find columns of wall nodes and calculate edges' lengths
2880 // --------------------------------------------------------
2882 myParam2ColumnMaps.clear();
2883 myParam2ColumnMaps.resize( thePrism.myBottomEdges.size() ); // total nb edges
2885 size_t iE, nbEdges = thePrism.myNbEdgesInWires.front(); // nb outer edges
2886 vector< double > edgeLength( nbEdges );
2887 multimap< double, int > len2edgeMap;
2889 // for each EDGE: either split into several parts, or join with several next EDGEs
2890 vector<int> nbSplitPerEdge( nbEdges, 0 );
2891 vector<int> nbUnitePerEdge( nbEdges, 0 ); // -1 means "joined to a previous"
2893 // consider continuous straight EDGEs as one side
2894 const int nbSides = countNbSides( thePrism, nbUnitePerEdge, edgeLength );
2896 list< TopoDS_Edge >::const_iterator edgeIt = thePrism.myBottomEdges.begin();
2897 for ( iE = 0; iE < nbEdges; ++iE, ++edgeIt )
2899 TParam2ColumnMap & faceColumns = myParam2ColumnMaps[ iE ];
2901 Prism_3D::TQuadList::const_iterator quad = thePrism.myWallQuads[ iE ].begin();
2902 for ( ; quad != thePrism.myWallQuads[ iE ].end(); ++quad )
2904 const TopoDS_Edge& quadBot = (*quad)->side[ QUAD_BOTTOM_SIDE ].grid->Edge( 0 );
2905 if ( !myHelper->LoadNodeColumns( faceColumns, (*quad)->face, quadBot, meshDS ))
2906 return error(COMPERR_BAD_INPUT_MESH, TCom("Can't find regular quadrangle mesh ")
2907 << "on a side face #" << MeshDS()->ShapeToIndex( (*quad)->face ));
2909 SHOWYXZ("\np1 F " <<iE, gpXYZ(faceColumns.begin()->second.front() ));
2910 SHOWYXZ("p2 F " <<iE, gpXYZ(faceColumns.rbegin()->second.front() ));
2911 SHOWYXZ("V First "<<iE, BRep_Tool::Pnt( TopExp::FirstVertex(*edgeIt,true )));
2913 if ( nbSides < NB_WALL_FACES ) // fill map used to split faces
2914 len2edgeMap.insert( make_pair( edgeLength[ iE ], iE )); // sort edges by length
2916 // Load columns of internal edges (forming holes)
2917 // and fill map ShapeIndex to TParam2ColumnMap for them
2918 for ( ; edgeIt != thePrism.myBottomEdges.end() ; ++edgeIt, ++iE )
2920 TParam2ColumnMap & faceColumns = myParam2ColumnMaps[ iE ];
2922 Prism_3D::TQuadList::const_iterator quad = thePrism.myWallQuads[ iE ].begin();
2923 for ( ; quad != thePrism.myWallQuads[ iE ].end(); ++quad )
2925 const TopoDS_Edge& quadBot = (*quad)->side[ QUAD_BOTTOM_SIDE ].grid->Edge( 0 );
2926 if ( !myHelper->LoadNodeColumns( faceColumns, (*quad)->face, quadBot, meshDS ))
2927 return error(COMPERR_BAD_INPUT_MESH, TCom("Can't find regular quadrangle mesh ")
2928 << "on a side face #" << MeshDS()->ShapeToIndex( (*quad)->face ));
2931 int id = MeshDS()->ShapeToIndex( *edgeIt );
2932 bool isForward = true; // meaningless for intenal wires
2933 myShapeIndex2ColumnMap[ id ] = make_pair( & faceColumns, isForward );
2934 // columns for vertices
2936 const SMDS_MeshNode* n0 = faceColumns.begin()->second.front();
2937 id = n0->getshapeId();
2938 myShapeIndex2ColumnMap[ id ] = make_pair( & faceColumns, isForward );
2940 const SMDS_MeshNode* n1 = faceColumns.rbegin()->second.front();
2941 id = n1->getshapeId();
2942 myShapeIndex2ColumnMap[ id ] = make_pair( & faceColumns, isForward );
2944 // SHOWYXZ("\np1 F " <<iE, gpXYZ(faceColumns.begin()->second.front() ));
2945 // SHOWYXZ("p2 F " <<iE, gpXYZ(faceColumns.rbegin()->second.front() ));
2946 // SHOWYXZ("V First "<<iE, BRep_Tool::Pnt( TopExp::FirstVertex(*edgeIt,true )));
2949 // Create 4 wall faces of a block
2950 // -------------------------------
2952 if ( nbSides <= NB_WALL_FACES ) // ************* Split faces if necessary
2954 if ( nbSides != NB_WALL_FACES ) // define how to split
2956 if ( len2edgeMap.size() != nbEdges )
2957 RETURN_BAD_RESULT("Uniqueness of edge lengths not assured");
2959 multimap< double, int >::reverse_iterator maxLen_i = len2edgeMap.rbegin();
2960 multimap< double, int >::reverse_iterator midLen_i = ++len2edgeMap.rbegin();
2962 double maxLen = maxLen_i->first;
2963 double midLen = ( len2edgeMap.size() == 1 ) ? 0 : midLen_i->first;
2964 switch ( nbEdges ) {
2965 case 1: // 0-th edge is split into 4 parts
2966 nbSplitPerEdge[ 0 ] = 4;
2968 case 2: // either the longest edge is split into 3 parts, or both edges into halves
2969 if ( maxLen / 3 > midLen / 2 ) {
2970 nbSplitPerEdge[ maxLen_i->second ] = 3;
2973 nbSplitPerEdge[ maxLen_i->second ] = 2;
2974 nbSplitPerEdge[ midLen_i->second ] = 2;
2979 // split longest into 3 parts
2980 nbSplitPerEdge[ maxLen_i->second ] = 3;
2982 // split longest into halves
2983 nbSplitPerEdge[ maxLen_i->second ] = 2;
2987 else // **************************** Unite faces
2989 int nbExraFaces = nbSides - 4; // nb of faces to fuse
2990 for ( iE = 0; iE < nbEdges; ++iE )
2992 if ( nbUnitePerEdge[ iE ] < 0 )
2994 // look for already united faces
2995 for ( int i = iE; i < iE + nbExraFaces; ++i )
2997 if ( nbUnitePerEdge[ i ] > 0 ) // a side including nbUnitePerEdge[i]+1 edge
2998 nbExraFaces += nbUnitePerEdge[ i ];
2999 nbUnitePerEdge[ i ] = -1;
3001 nbUnitePerEdge[ iE ] = nbExraFaces;
3006 // Create TSideFace's
3008 list< TopoDS_Edge >::const_iterator botE = thePrism.myBottomEdges.begin();
3009 for ( iE = 0; iE < nbEdges; ++iE, ++botE )
3011 TFaceQuadStructPtr quad = thePrism.myWallQuads[ iE ].front();
3012 const int nbSplit = nbSplitPerEdge[ iE ];
3013 const int nbExraFaces = nbUnitePerEdge[ iE ] + 1;
3014 if ( nbSplit > 0 ) // split
3016 vector< double > params;
3017 splitParams( nbSplit, &myParam2ColumnMaps[ iE ], params );
3018 const bool isForward =
3019 StdMeshers_PrismAsBlock::IsForwardEdge( myHelper->GetMeshDS(),
3020 myParam2ColumnMaps[iE],
3021 *botE, SMESH_Block::ID_Fx0z );
3022 for ( int i = 0; i < nbSplit; ++i ) {
3023 double f = ( isForward ? params[ i ] : params[ nbSplit - i-1 ]);
3024 double l = ( isForward ? params[ i+1 ] : params[ nbSplit - i ]);
3025 TSideFace* comp = new TSideFace( *mesh, wallFaceIds[ iSide ],
3026 thePrism.myWallQuads[ iE ], *botE,
3027 &myParam2ColumnMaps[ iE ], f, l );
3028 mySide->SetComponent( iSide++, comp );
3031 else if ( nbExraFaces > 1 ) // unite
3033 double u0 = 0, sumLen = 0;
3034 for ( int i = iE; i < iE + nbExraFaces; ++i )
3035 sumLen += edgeLength[ i ];
3037 vector< TSideFace* > components( nbExraFaces );
3038 vector< pair< double, double> > params( nbExraFaces );
3039 bool endReached = false;
3040 for ( int i = 0; i < nbExraFaces; ++i, ++botE, ++iE )
3042 if ( iE == nbEdges )
3045 botE = thePrism.myBottomEdges.begin();
3048 components[ i ] = new TSideFace( *mesh, wallFaceIds[ iSide ],
3049 thePrism.myWallQuads[ iE ], *botE,
3050 &myParam2ColumnMaps[ iE ]);
3051 double u1 = u0 + edgeLength[ iE ] / sumLen;
3052 params[ i ] = make_pair( u0 , u1 );
3055 TSideFace* comp = new TSideFace( *mesh, components, params );
3056 mySide->SetComponent( iSide++, comp );
3059 --iE; // for increment in an external loop on iE
3062 else if ( nbExraFaces < 0 ) // skip already united face
3067 TSideFace* comp = new TSideFace( *mesh, wallFaceIds[ iSide ],
3068 thePrism.myWallQuads[ iE ], *botE,
3069 &myParam2ColumnMaps[ iE ]);
3070 mySide->SetComponent( iSide++, comp );
3075 // Fill geometry fields of SMESH_Block
3076 // ------------------------------------
3078 vector< int > botEdgeIdVec;
3079 SMESH_Block::GetFaceEdgesIDs( ID_BOT_FACE, botEdgeIdVec );
3081 bool isForward[NB_WALL_FACES] = { true, true, true, true };
3082 Adaptor2d_Curve2d* botPcurves[NB_WALL_FACES];
3083 Adaptor2d_Curve2d* topPcurves[NB_WALL_FACES];
3085 for ( int iF = 0; iF < NB_WALL_FACES; ++iF )
3087 TSideFace * sideFace = mySide->GetComponent( iF );
3089 RETURN_BAD_RESULT("NULL TSideFace");
3090 int fID = sideFace->FaceID(); // in-block ID
3092 // fill myShapeIDMap
3093 if ( sideFace->InsertSubShapes( myShapeIDMap ) != 8 &&
3094 !sideFace->IsComplex())
3095 MESSAGE( ": Warning : InsertSubShapes() < 8 on side " << iF );
3097 // side faces geometry
3098 Adaptor2d_Curve2d* pcurves[NB_WALL_FACES];
3099 if ( !sideFace->GetPCurves( pcurves ))
3100 RETURN_BAD_RESULT("TSideFace::GetPCurves() failed");
3102 SMESH_Block::TFace& tFace = myFace[ fID - ID_FirstF ];
3103 tFace.Set( fID, sideFace->Surface(), pcurves, isForward );
3105 SHOWYXZ( endl<<"F "<< iF << " id " << fID << " FRW " << sideFace->IsForward(), sideFace->Value(0,0));
3106 // edges 3D geometry
3107 vector< int > edgeIdVec;
3108 SMESH_Block::GetFaceEdgesIDs( fID, edgeIdVec );
3109 for ( int isMax = 0; isMax < 2; ++isMax ) {
3111 int eID = edgeIdVec[ isMax ];
3112 SMESH_Block::TEdge& tEdge = myEdge[ eID - ID_FirstE ];
3113 tEdge.Set( eID, sideFace->HorizCurve(isMax), true);
3114 SHOWYXZ(eID<<" HOR"<<isMax<<"(0)", sideFace->HorizCurve(isMax)->Value(0));
3115 SHOWYXZ(eID<<" HOR"<<isMax<<"(1)", sideFace->HorizCurve(isMax)->Value(1));
3118 int eID = edgeIdVec[ isMax+2 ];
3119 SMESH_Block::TEdge& tEdge = myEdge[ eID - ID_FirstE ];
3120 tEdge.Set( eID, sideFace->VertiCurve(isMax), true);
3121 SHOWYXZ(eID<<" VER"<<isMax<<"(0)", sideFace->VertiCurve(isMax)->Value(0));
3122 SHOWYXZ(eID<<" VER"<<isMax<<"(1)", sideFace->VertiCurve(isMax)->Value(1));
3125 vector< int > vertexIdVec;
3126 SMESH_Block::GetEdgeVertexIDs( eID, vertexIdVec );
3127 myPnt[ vertexIdVec[0] - ID_FirstV ] = tEdge.GetCurve()->Value(0).XYZ();
3128 myPnt[ vertexIdVec[1] - ID_FirstV ] = tEdge.GetCurve()->Value(1).XYZ();
3131 // pcurves on horizontal faces
3132 for ( iE = 0; iE < NB_WALL_FACES; ++iE ) {
3133 if ( edgeIdVec[ BOTTOM_EDGE ] == botEdgeIdVec[ iE ] ) {
3134 botPcurves[ iE ] = sideFace->HorizPCurve( false, thePrism.myBottom );
3135 topPcurves[ iE ] = sideFace->HorizPCurve( true, thePrism.myTop );
3139 //sideFace->dumpNodes( 4 ); // debug
3141 // horizontal faces geometry
3143 SMESH_Block::TFace& tFace = myFace[ ID_BOT_FACE - ID_FirstF ];
3144 tFace.Set( ID_BOT_FACE, new BRepAdaptor_Surface( thePrism.myBottom ), botPcurves, isForward );
3145 SMESH_Block::Insert( thePrism.myBottom, ID_BOT_FACE, myShapeIDMap );
3148 SMESH_Block::TFace& tFace = myFace[ ID_TOP_FACE - ID_FirstF ];
3149 tFace.Set( ID_TOP_FACE, new BRepAdaptor_Surface( thePrism.myTop ), topPcurves, isForward );
3150 SMESH_Block::Insert( thePrism.myTop, ID_TOP_FACE, myShapeIDMap );
3152 //faceGridToPythonDump( SMESH_Block::ID_Fxy0, 50 );
3153 //faceGridToPythonDump( SMESH_Block::ID_Fxy1 );
3155 // Fill map ShapeIndex to TParam2ColumnMap
3156 // ----------------------------------------
3158 list< TSideFace* > fList;
3159 list< TSideFace* >::iterator fListIt;
3160 fList.push_back( mySide );
3161 for ( fListIt = fList.begin(); fListIt != fList.end(); ++fListIt)
3163 int nb = (*fListIt)->NbComponents();
3164 for ( int i = 0; i < nb; ++i ) {
3165 if ( TSideFace* comp = (*fListIt)->GetComponent( i ))
3166 fList.push_back( comp );
3168 if ( TParam2ColumnMap* cols = (*fListIt)->GetColumns()) {
3169 // columns for a base edge
3170 int id = MeshDS()->ShapeToIndex( (*fListIt)->BaseEdge() );
3171 bool isForward = (*fListIt)->IsForward();
3172 myShapeIndex2ColumnMap[ id ] = make_pair( cols, isForward );
3174 // columns for vertices
3175 const SMDS_MeshNode* n0 = cols->begin()->second.front();
3176 id = n0->getshapeId();
3177 myShapeIndex2ColumnMap[ id ] = make_pair( cols, isForward );
3179 const SMDS_MeshNode* n1 = cols->rbegin()->second.front();
3180 id = n1->getshapeId();
3181 myShapeIndex2ColumnMap[ id ] = make_pair( cols, !isForward );
3185 // #define SHOWYXZ(msg, xyz) { \
3186 // gp_Pnt p (xyz); \
3187 // cout << msg << " ("<< p.X() << "; " <<p.Y() << "; " <<p.Z() << ") " <<endl; \
3189 // double _u[]={ 0.1, 0.1, 0.9, 0.9 };
3190 // double _v[]={ 0.1, 0.9, 0.1, 0.9 };
3191 // for ( int z = 0; z < 2; ++z )
3192 // for ( int i = 0; i < 4; ++i )
3194 // //gp_XYZ testPar(0.25, 0.25, 0), testCoord;
3195 // int iFace = (z ? ID_TOP_FACE : ID_BOT_FACE);
3196 // gp_XYZ testPar(_u[i], _v[i], z), testCoord;
3197 // if ( !FacePoint( iFace, testPar, testCoord ))
3198 // RETURN_BAD_RESULT("TEST FacePoint() FAILED");
3199 // SHOWYXZ("IN TEST PARAM" , testPar);
3200 // SHOWYXZ("OUT TEST CORD" , testCoord);
3201 // if ( !ComputeParameters( testCoord, testPar , iFace))
3202 // RETURN_BAD_RESULT("TEST ComputeParameters() FAILED");
3203 // SHOWYXZ("OUT TEST PARAM" , testPar);
3208 //================================================================================
3210 * \brief Return pointer to column of nodes
3211 * \param node - bottom node from which the returned column goes up
3212 * \retval const TNodeColumn* - the found column
3214 //================================================================================
3216 const TNodeColumn* StdMeshers_PrismAsBlock::GetNodeColumn(const SMDS_MeshNode* node) const
3218 int sID = node->getshapeId();
3220 map<int, pair< TParam2ColumnMap*, bool > >::const_iterator col_frw =
3221 myShapeIndex2ColumnMap.find( sID );
3222 if ( col_frw != myShapeIndex2ColumnMap.end() ) {
3223 const TParam2ColumnMap* cols = col_frw->second.first;
3224 TParam2ColumnIt u_col = cols->begin();
3225 for ( ; u_col != cols->end(); ++u_col )
3226 if ( u_col->second[ 0 ] == node )
3227 return & u_col->second;
3232 //=======================================================================
3233 //function : GetLayersTransformation
3234 //purpose : Return transformations to get coordinates of nodes of each layer
3235 // by nodes of the bottom. Layer is a set of nodes at a certain step
3236 // from bottom to top.
3237 // Transformation to get top node from bottom ones is computed
3238 // only if the top FACE is not meshed.
3239 //=======================================================================
3241 bool StdMeshers_PrismAsBlock::GetLayersTransformation(vector<gp_Trsf> & trsf,
3242 const Prism_3D::TPrismTopo& prism) const
3244 const bool itTopMeshed = !SubMesh( ID_BOT_FACE )->IsEmpty();
3245 const int zSize = VerticalSize();
3246 if ( zSize < 3 && !itTopMeshed ) return true;
3247 trsf.resize( zSize - 1 );
3249 // Select some node columns by which we will define coordinate system of layers
3251 vector< const TNodeColumn* > columns;
3254 list< TopoDS_Edge >::const_iterator edgeIt = prism.myBottomEdges.begin();
3255 for ( int iE = 0; iE < prism.myNbEdgesInWires.front(); ++iE, ++edgeIt )
3257 if ( SMESH_Algo::isDegenerated( *edgeIt )) continue;
3258 const TParam2ColumnMap* u2colMap =
3259 GetParam2ColumnMap( MeshDS()->ShapeToIndex( *edgeIt ), isReverse );
3260 if ( !u2colMap ) return false;
3261 double f = u2colMap->begin()->first, l = u2colMap->rbegin()->first;
3262 //isReverse = ( edgeIt->Orientation() == TopAbs_REVERSED );
3263 //if ( isReverse ) swap ( f, l ); -- u2colMap takes orientation into account
3264 const int nbCol = 5;
3265 for ( int i = 0; i < nbCol; ++i )
3267 double u = f + i/double(nbCol) * ( l - f );
3268 const TNodeColumn* col = & getColumn( u2colMap, u )->second;
3269 if ( columns.empty() || col != columns.back() )
3270 columns.push_back( col );
3275 // Find tolerance to check transformations
3280 for ( int i = 0; i < columns.size(); ++i )
3281 bndBox.Add( gpXYZ( columns[i]->front() ));
3282 tol2 = bndBox.SquareExtent() * 1e-5;
3285 // Compute transformations
3288 gp_Trsf fromCsZ, toCs0;
3289 gp_Ax3 cs0 = getLayerCoordSys(0, columns, xCol );
3290 //double dist0 = cs0.Location().Distance( gpXYZ( (*columns[0])[0]));
3291 toCs0.SetTransformation( cs0 );
3292 for ( int z = 1; z < zSize; ++z )
3294 gp_Ax3 csZ = getLayerCoordSys(z, columns, xCol );
3295 //double distZ = csZ.Location().Distance( gpXYZ( (*columns[0])[z]));
3296 fromCsZ.SetTransformation( csZ );
3298 gp_Trsf& t = trsf[ z-1 ];
3299 t = fromCsZ * toCs0;
3300 //t.SetScaleFactor( distZ/dist0 ); - it does not work properly, wrong base point
3302 // check a transformation
3303 for ( int i = 0; i < columns.size(); ++i )
3305 gp_Pnt p0 = gpXYZ( (*columns[i])[0] );
3306 gp_Pnt pz = gpXYZ( (*columns[i])[z] );
3307 t.Transforms( p0.ChangeCoord() );
3308 if ( p0.SquareDistance( pz ) > tol2 )
3311 return ( z == zSize - 1 ); // OK if fails only botton->top trsf
3318 //================================================================================
3320 * \brief Check curve orientation of a bootom edge
3321 * \param meshDS - mesh DS
3322 * \param columnsMap - node columns map of side face
3323 * \param bottomEdge - the bootom edge
3324 * \param sideFaceID - side face in-block ID
3325 * \retval bool - true if orientation coinside with in-block forward orientation
3327 //================================================================================
3329 bool StdMeshers_PrismAsBlock::IsForwardEdge(SMESHDS_Mesh* meshDS,
3330 const TParam2ColumnMap& columnsMap,
3331 const TopoDS_Edge & bottomEdge,
3332 const int sideFaceID)
3334 bool isForward = false;
3335 if ( SMESH_MesherHelper::IsClosedEdge( bottomEdge ))
3337 isForward = ( bottomEdge.Orientation() == TopAbs_FORWARD );
3341 const TNodeColumn& firstCol = columnsMap.begin()->second;
3342 const SMDS_MeshNode* bottomNode = firstCol[0];
3343 TopoDS_Shape firstVertex = SMESH_MesherHelper::GetSubShapeByNode( bottomNode, meshDS );
3344 isForward = ( firstVertex.IsSame( TopExp::FirstVertex( bottomEdge, true )));
3346 // on 2 of 4 sides first vertex is end
3347 if ( sideFaceID == ID_Fx1z || sideFaceID == ID_F0yz )
3348 isForward = !isForward;
3352 //=======================================================================
3353 //function : faceGridToPythonDump
3354 //purpose : Prints a script creating a normal grid on the prism side
3355 //=======================================================================
3357 void StdMeshers_PrismAsBlock::faceGridToPythonDump(const SMESH_Block::TShapeID face,
3361 gp_XYZ pOnF[6] = { gp_XYZ(0,0,0), gp_XYZ(0,0,1),
3362 gp_XYZ(0,0,0), gp_XYZ(0,1,0),
3363 gp_XYZ(0,0,0), gp_XYZ(1,0,0) };
3365 cout << "mesh = smesh.Mesh( 'Face " << face << "')" << endl;
3366 SMESH_Block::TFace& f = myFace[ face - ID_FirstF ];
3367 gp_XYZ params = pOnF[ face - ID_FirstF ];
3368 //const int nb = 10; // nb face rows
3369 for ( int j = 0; j <= nb; ++j )
3371 params.SetCoord( f.GetVInd(), double( j )/ nb );
3372 for ( int i = 0; i <= nb; ++i )
3374 params.SetCoord( f.GetUInd(), double( i )/ nb );
3375 gp_XYZ p = f.Point( params );
3376 gp_XY uv = f.GetUV( params );
3377 cout << "mesh.AddNode( " << p.X() << ", " << p.Y() << ", " << p.Z() << " )"
3378 << " # " << 1 + i + j * ( nb + 1 )
3379 << " ( " << i << ", " << j << " ) "
3380 << " UV( " << uv.X() << ", " << uv.Y() << " )" << endl;
3381 ShellPoint( params, p2 );
3382 double dist = ( p2 - p ).Modulus();
3384 cout << "#### dist from ShellPoint " << dist
3385 << " (" << p2.X() << ", " << p2.Y() << ", " << p2.Z() << " ) " << endl;
3388 for ( int j = 0; j < nb; ++j )
3389 for ( int i = 0; i < nb; ++i )
3391 int n = 1 + i + j * ( nb + 1 );
3392 cout << "mesh.AddFace([ "
3393 << n << ", " << n+1 << ", "
3394 << n+nb+2 << ", " << n+nb+1 << "]) " << endl;
3400 //================================================================================
3402 * \brief Constructor
3403 * \param faceID - in-block ID
3404 * \param face - geom FACE
3405 * \param baseEdge - EDGE proreply oriented in the bottom EDGE !!!
3406 * \param columnsMap - map of node columns
3407 * \param first - first normalized param
3408 * \param last - last normalized param
3410 //================================================================================
3412 StdMeshers_PrismAsBlock::TSideFace::TSideFace(SMESH_Mesh& mesh,
3414 const Prism_3D::TQuadList& quadList,
3415 const TopoDS_Edge& baseEdge,
3416 TParam2ColumnMap* columnsMap,
3420 myParamToColumnMap( columnsMap ),
3423 myParams.resize( 1 );
3424 myParams[ 0 ] = make_pair( first, last );
3425 mySurface = PSurface( new BRepAdaptor_Surface( quadList.front()->face ));
3426 myBaseEdge = baseEdge;
3427 myIsForward = StdMeshers_PrismAsBlock::IsForwardEdge( myHelper.GetMeshDS(),
3428 *myParamToColumnMap,
3430 myHelper.SetSubShape( quadList.front()->face );
3432 if ( quadList.size() > 1 ) // side is vertically composite
3434 // fill myShapeID2Surf map to enable finding a right surface by any sub-shape ID
3436 SMESHDS_Mesh* meshDS = myHelper.GetMeshDS();
3438 TopTools_IndexedDataMapOfShapeListOfShape subToFaces;
3439 Prism_3D::TQuadList::const_iterator quad = quadList.begin();
3440 for ( ; quad != quadList.end(); ++quad )
3442 const TopoDS_Face& face = (*quad)->face;
3443 TopExp::MapShapesAndAncestors( face, TopAbs_VERTEX, TopAbs_FACE, subToFaces );
3444 TopExp::MapShapesAndAncestors( face, TopAbs_EDGE, TopAbs_FACE, subToFaces );
3445 myShapeID2Surf.insert( make_pair( meshDS->ShapeToIndex( face ),
3446 PSurface( new BRepAdaptor_Surface( face ))));
3448 for ( int i = 1; i <= subToFaces.Extent(); ++i )
3450 const TopoDS_Shape& sub = subToFaces.FindKey( i );
3451 TopTools_ListOfShape& faces = subToFaces( i );
3452 int subID = meshDS->ShapeToIndex( sub );
3453 int faceID = meshDS->ShapeToIndex( faces.First() );
3454 myShapeID2Surf.insert ( make_pair( subID, myShapeID2Surf[ faceID ]));
3459 //================================================================================
3461 * \brief Constructor of a complex side face
3463 //================================================================================
3465 StdMeshers_PrismAsBlock::TSideFace::
3466 TSideFace(SMESH_Mesh& mesh,
3467 const vector< TSideFace* >& components,
3468 const vector< pair< double, double> > & params)
3469 :myID( components[0] ? components[0]->myID : 0 ),
3470 myParamToColumnMap( 0 ),
3472 myIsForward( true ),
3473 myComponents( components ),
3476 if ( myID == ID_Fx1z || myID == ID_F0yz )
3478 // reverse components
3479 std::reverse( myComponents.begin(), myComponents.end() );
3480 std::reverse( myParams.begin(), myParams.end() );
3481 for ( size_t i = 0; i < myParams.size(); ++i )
3483 const double f = myParams[i].first;
3484 const double l = myParams[i].second;
3485 myParams[i] = make_pair( 1. - l, 1. - f );
3489 //================================================================================
3491 * \brief Copy constructor
3492 * \param other - other side
3494 //================================================================================
3496 StdMeshers_PrismAsBlock::TSideFace::TSideFace( const TSideFace& other ):
3497 myID ( other.myID ),
3498 myParamToColumnMap ( other.myParamToColumnMap ),
3499 mySurface ( other.mySurface ),
3500 myBaseEdge ( other.myBaseEdge ),
3501 myShapeID2Surf ( other.myShapeID2Surf ),
3502 myParams ( other.myParams ),
3503 myIsForward ( other.myIsForward ),
3504 myComponents ( other.myComponents.size() ),
3505 myHelper ( *other.myHelper.GetMesh() )
3507 for (int i = 0 ; i < myComponents.size(); ++i )
3508 myComponents[ i ] = new TSideFace( *other.myComponents[ i ]);
3511 //================================================================================
3513 * \brief Deletes myComponents
3515 //================================================================================
3517 StdMeshers_PrismAsBlock::TSideFace::~TSideFace()
3519 for (int i = 0 ; i < myComponents.size(); ++i )
3520 if ( myComponents[ i ] )
3521 delete myComponents[ i ];
3524 //================================================================================
3526 * \brief Return geometry of the vertical curve
3527 * \param isMax - true means curve located closer to (1,1,1) block point
3528 * \retval Adaptor3d_Curve* - curve adaptor
3530 //================================================================================
3532 Adaptor3d_Curve* StdMeshers_PrismAsBlock::TSideFace::VertiCurve(const bool isMax) const
3534 if ( !myComponents.empty() ) {
3536 return myComponents.back()->VertiCurve(isMax);
3538 return myComponents.front()->VertiCurve(isMax);
3540 double f = myParams[0].first, l = myParams[0].second;
3541 if ( !myIsForward ) std::swap( f, l );
3542 return new TVerticalEdgeAdaptor( myParamToColumnMap, isMax ? l : f );
3545 //================================================================================
3547 * \brief Return geometry of the top or bottom curve
3549 * \retval Adaptor3d_Curve* -
3551 //================================================================================
3553 Adaptor3d_Curve* StdMeshers_PrismAsBlock::TSideFace::HorizCurve(const bool isTop) const
3555 return new THorizontalEdgeAdaptor( this, isTop );
3558 //================================================================================
3560 * \brief Return pcurves
3561 * \param pcurv - array of 4 pcurves
3562 * \retval bool - is a success
3564 //================================================================================
3566 bool StdMeshers_PrismAsBlock::TSideFace::GetPCurves(Adaptor2d_Curve2d* pcurv[4]) const
3568 int iEdge[ 4 ] = { BOTTOM_EDGE, TOP_EDGE, V0_EDGE, V1_EDGE };
3570 for ( int i = 0 ; i < 4 ; ++i ) {
3571 Handle(Geom2d_Line) line;
3572 switch ( iEdge[ i ] ) {
3574 line = new Geom2d_Line( gp_Pnt2d( 0, 1 ), gp::DX2d() ); break;
3576 line = new Geom2d_Line( gp::Origin2d(), gp::DX2d() ); break;
3578 line = new Geom2d_Line( gp::Origin2d(), gp::DY2d() ); break;
3580 line = new Geom2d_Line( gp_Pnt2d( 1, 0 ), gp::DY2d() ); break;
3582 pcurv[ i ] = new Geom2dAdaptor_Curve( line, 0, 1 );
3587 //================================================================================
3589 * \brief Returns geometry of pcurve on a horizontal face
3590 * \param isTop - is top or bottom face
3591 * \param horFace - a horizontal face
3592 * \retval Adaptor2d_Curve2d* - curve adaptor
3594 //================================================================================
3597 StdMeshers_PrismAsBlock::TSideFace::HorizPCurve(const bool isTop,
3598 const TopoDS_Face& horFace) const
3600 return new TPCurveOnHorFaceAdaptor( this, isTop, horFace );
3603 //================================================================================
3605 * \brief Return a component corresponding to parameter
3606 * \param U - parameter along a horizontal size
3607 * \param localU - parameter along a horizontal size of a component
3608 * \retval TSideFace* - found component
3610 //================================================================================
3612 StdMeshers_PrismAsBlock::TSideFace*
3613 StdMeshers_PrismAsBlock::TSideFace::GetComponent(const double U,double & localU) const
3616 if ( myComponents.empty() )
3617 return const_cast<TSideFace*>( this );
3620 for ( i = 0; i < myComponents.size(); ++i )
3621 if ( U < myParams[ i ].second )
3623 if ( i >= myComponents.size() )
3624 i = myComponents.size() - 1;
3626 double f = myParams[ i ].first, l = myParams[ i ].second;
3627 localU = ( U - f ) / ( l - f );
3628 return myComponents[ i ];
3631 //================================================================================
3633 * \brief Find node columns for a parameter
3634 * \param U - parameter along a horizontal edge
3635 * \param col1 - the 1st found column
3636 * \param col2 - the 2nd found column
3637 * \retval r - normalized position of U between the found columns
3639 //================================================================================
3641 double StdMeshers_PrismAsBlock::TSideFace::GetColumns(const double U,
3642 TParam2ColumnIt & col1,
3643 TParam2ColumnIt & col2) const
3645 double u = U, r = 0;
3646 if ( !myComponents.empty() ) {
3647 TSideFace * comp = GetComponent(U,u);
3648 return comp->GetColumns( u, col1, col2 );
3653 double f = myParams[0].first, l = myParams[0].second;
3654 u = f + u * ( l - f );
3656 col1 = col2 = getColumn( myParamToColumnMap, u );
3657 if ( ++col2 == myParamToColumnMap->end() ) {
3662 double uf = col1->first;
3663 double ul = col2->first;
3664 r = ( u - uf ) / ( ul - uf );
3669 //================================================================================
3671 * \brief Return all nodes at a given height together with their normalized parameters
3672 * \param [in] Z - the height of interest
3673 * \param [out] nodes - map of parameter to node
3675 //================================================================================
3677 void StdMeshers_PrismAsBlock::
3678 TSideFace::GetNodesAtZ(const int Z,
3679 map<double, const SMDS_MeshNode* >& nodes ) const
3681 if ( !myComponents.empty() )
3684 for ( size_t i = 0; i < myComponents.size(); ++i )
3686 map<double, const SMDS_MeshNode* > nn;
3687 myComponents[i]->GetNodesAtZ( Z, nn );
3688 map<double, const SMDS_MeshNode* >::iterator u2n = nn.begin();
3689 if ( !nodes.empty() && nodes.rbegin()->second == u2n->second )
3691 const double uRange = myParams[i].second - myParams[i].first;
3692 for ( ; u2n != nn.end(); ++u2n )
3693 nodes.insert( nodes.end(), make_pair( u0 + uRange * u2n->first, u2n->second ));
3699 double f = myParams[0].first, l = myParams[0].second;
3702 const double uRange = l - f;
3703 if ( Abs( uRange ) < std::numeric_limits<double>::min() )
3705 TParam2ColumnIt u2col = getColumn( myParamToColumnMap, myParams[0].first + 1e-3 );
3706 for ( ; u2col != myParamToColumnMap->end(); ++u2col )
3707 if ( u2col->first > myParams[0].second + 1e-9 )
3710 nodes.insert( nodes.end(),
3711 make_pair( ( u2col->first - f ) / uRange, u2col->second[ Z ] ));
3715 //================================================================================
3717 * \brief Return coordinates by normalized params
3718 * \param U - horizontal param
3719 * \param V - vertical param
3720 * \retval gp_Pnt - result point
3722 //================================================================================
3724 gp_Pnt StdMeshers_PrismAsBlock::TSideFace::Value(const Standard_Real U,
3725 const Standard_Real V) const
3727 if ( !myComponents.empty() ) {
3729 TSideFace * comp = GetComponent(U,u);
3730 return comp->Value( u, V );
3733 TParam2ColumnIt u_col1, u_col2;
3734 double vR, hR = GetColumns( U, u_col1, u_col2 );
3736 const SMDS_MeshNode* nn[4];
3738 // BEGIN issue 0020680: Bad cell created by Radial prism in center of torus
3739 // Workaround for a wrongly located point returned by mySurface.Value() for
3740 // UV located near boundary of BSpline surface.
3741 // To bypass the problem, we take point from 3D curve of EDGE.
3742 // It solves pb of the bloc_fiss_new.py
3743 const double tol = 1e-3;
3744 if ( V < tol || V+tol >= 1. )
3746 nn[0] = V < tol ? u_col1->second.front() : u_col1->second.back();
3747 nn[2] = V < tol ? u_col2->second.front() : u_col2->second.back();
3755 TopoDS_Shape s = myHelper.GetSubShapeByNode( nn[0], myHelper.GetMeshDS() );
3756 if ( s.ShapeType() != TopAbs_EDGE )
3757 s = myHelper.GetSubShapeByNode( nn[2], myHelper.GetMeshDS() );
3758 if ( s.ShapeType() == TopAbs_EDGE )
3759 edge = TopoDS::Edge( s );
3761 if ( !edge.IsNull() )
3763 double u1 = myHelper.GetNodeU( edge, nn[0] );
3764 double u3 = myHelper.GetNodeU( edge, nn[2] );
3765 double u = u1 * ( 1 - hR ) + u3 * hR;
3766 TopLoc_Location loc; double f,l;
3767 Handle(Geom_Curve) curve = BRep_Tool::Curve( edge,loc,f,l );
3768 return curve->Value( u ).Transformed( loc );
3771 // END issue 0020680: Bad cell created by Radial prism in center of torus
3773 vR = getRAndNodes( & u_col1->second, V, nn[0], nn[1] );
3774 vR = getRAndNodes( & u_col2->second, V, nn[2], nn[3] );
3776 if ( !myShapeID2Surf.empty() ) // side is vertically composite
3778 // find a FACE on which the 4 nodes lie
3779 TSideFace* me = (TSideFace*) this;
3780 int notFaceID1 = 0, notFaceID2 = 0;
3781 for ( int i = 0; i < 4; ++i )
3782 if ( nn[i]->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE ) // node on FACE
3784 me->mySurface = me->myShapeID2Surf[ nn[i]->getshapeId() ];
3788 else if ( notFaceID1 == 0 ) // node on EDGE or VERTEX
3790 me->mySurface = me->myShapeID2Surf[ nn[i]->getshapeId() ];
3791 notFaceID1 = nn[i]->getshapeId();
3793 else if ( notFaceID1 != nn[i]->getshapeId() ) // node on other EDGE or VERTEX
3795 if ( mySurface != me->myShapeID2Surf[ nn[i]->getshapeId() ])
3796 notFaceID2 = nn[i]->getshapeId();
3798 if ( notFaceID2 ) // no nodes of FACE and nodes are on different FACEs
3800 SMESHDS_Mesh* meshDS = myHelper.GetMeshDS();
3801 TopoDS_Shape face = myHelper.GetCommonAncestor( meshDS->IndexToShape( notFaceID1 ),
3802 meshDS->IndexToShape( notFaceID2 ),
3803 *myHelper.GetMesh(),
3805 if ( face.IsNull() )
3806 throw SALOME_Exception("StdMeshers_PrismAsBlock::TSideFace::Value() face.IsNull()");
3807 int faceID = meshDS->ShapeToIndex( face );
3808 me->mySurface = me->myShapeID2Surf[ faceID ];
3810 throw SALOME_Exception("StdMeshers_PrismAsBlock::TSideFace::Value() !mySurface");
3813 ((TSideFace*) this)->myHelper.SetSubShape( mySurface->Face() );
3815 gp_XY uv1 = myHelper.GetNodeUV( mySurface->Face(), nn[0], nn[2]);
3816 gp_XY uv2 = myHelper.GetNodeUV( mySurface->Face(), nn[1], nn[3]);
3817 gp_XY uv12 = uv1 * ( 1 - vR ) + uv2 * vR;
3819 gp_XY uv3 = myHelper.GetNodeUV( mySurface->Face(), nn[2], nn[0]);
3820 gp_XY uv4 = myHelper.GetNodeUV( mySurface->Face(), nn[3], nn[1]);
3821 gp_XY uv34 = uv3 * ( 1 - vR ) + uv4 * vR;
3823 gp_XY uv = uv12 * ( 1 - hR ) + uv34 * hR;
3825 gp_Pnt p = mySurface->Value( uv.X(), uv.Y() );
3830 //================================================================================
3832 * \brief Return boundary edge
3833 * \param edge - edge index
3834 * \retval TopoDS_Edge - found edge
3836 //================================================================================
3838 TopoDS_Edge StdMeshers_PrismAsBlock::TSideFace::GetEdge(const int iEdge) const
3840 if ( !myComponents.empty() ) {
3842 case V0_EDGE : return myComponents.front()->GetEdge( iEdge );
3843 case V1_EDGE : return myComponents.back() ->GetEdge( iEdge );
3844 default: return TopoDS_Edge();
3848 const SMDS_MeshNode* node = 0;
3849 SMESHDS_Mesh * meshDS = myHelper.GetMesh()->GetMeshDS();
3850 TNodeColumn* column;
3855 column = & (( ++myParamToColumnMap->begin())->second );
3856 node = ( iEdge == TOP_EDGE ) ? column->back() : column->front();
3857 edge = myHelper.GetSubShapeByNode ( node, meshDS );
3858 if ( edge.ShapeType() == TopAbs_VERTEX ) {
3859 column = & ( myParamToColumnMap->begin()->second );
3860 node = ( iEdge == TOP_EDGE ) ? column->back() : column->front();
3865 bool back = ( iEdge == V1_EDGE );
3866 if ( !myIsForward ) back = !back;
3868 column = & ( myParamToColumnMap->rbegin()->second );
3870 column = & ( myParamToColumnMap->begin()->second );
3871 if ( column->size() > 0 )
3872 edge = myHelper.GetSubShapeByNode( (*column)[ 1 ], meshDS );
3873 if ( edge.IsNull() || edge.ShapeType() == TopAbs_VERTEX )
3874 node = column->front();
3879 if ( !edge.IsNull() && edge.ShapeType() == TopAbs_EDGE )
3880 return TopoDS::Edge( edge );
3882 // find edge by 2 vertices
3883 TopoDS_Shape V1 = edge;
3884 TopoDS_Shape V2 = myHelper.GetSubShapeByNode( node, meshDS );
3885 if ( !V2.IsNull() && V2.ShapeType() == TopAbs_VERTEX && !V2.IsSame( V1 ))
3887 TopoDS_Shape ancestor = myHelper.GetCommonAncestor( V1, V2, *myHelper.GetMesh(), TopAbs_EDGE);
3888 if ( !ancestor.IsNull() )
3889 return TopoDS::Edge( ancestor );
3891 return TopoDS_Edge();
3894 //================================================================================
3896 * \brief Fill block sub-shapes
3897 * \param shapeMap - map to fill in
3898 * \retval int - nb inserted sub-shapes
3900 //================================================================================
3902 int StdMeshers_PrismAsBlock::TSideFace::InsertSubShapes(TBlockShapes& shapeMap) const
3907 vector< int > edgeIdVec;
3908 SMESH_Block::GetFaceEdgesIDs( myID, edgeIdVec );
3910 for ( int i = BOTTOM_EDGE; i <=V1_EDGE ; ++i ) {
3911 TopoDS_Edge e = GetEdge( i );
3912 if ( !e.IsNull() ) {
3913 nbInserted += SMESH_Block::Insert( e, edgeIdVec[ i ], shapeMap);
3917 // Insert corner vertices
3919 TParam2ColumnIt col1, col2 ;
3920 vector< int > vertIdVec;
3923 SMESH_Block::GetEdgeVertexIDs( edgeIdVec[ V0_EDGE ], vertIdVec);
3924 GetColumns(0, col1, col2 );
3925 const SMDS_MeshNode* node0 = col1->second.front();
3926 const SMDS_MeshNode* node1 = col1->second.back();
3927 TopoDS_Shape v0 = myHelper.GetSubShapeByNode( node0, myHelper.GetMeshDS());
3928 TopoDS_Shape v1 = myHelper.GetSubShapeByNode( node1, myHelper.GetMeshDS());
3929 if ( v0.ShapeType() == TopAbs_VERTEX ) {
3930 nbInserted += SMESH_Block::Insert( v0, vertIdVec[ 0 ], shapeMap);
3932 if ( v1.ShapeType() == TopAbs_VERTEX ) {
3933 nbInserted += SMESH_Block::Insert( v1, vertIdVec[ 1 ], shapeMap);
3937 SMESH_Block::GetEdgeVertexIDs( edgeIdVec[ V1_EDGE ], vertIdVec);
3938 GetColumns(1, col1, col2 );
3939 node0 = col2->second.front();
3940 node1 = col2->second.back();
3941 v0 = myHelper.GetSubShapeByNode( node0, myHelper.GetMeshDS());
3942 v1 = myHelper.GetSubShapeByNode( node1, myHelper.GetMeshDS());
3943 if ( v0.ShapeType() == TopAbs_VERTEX ) {
3944 nbInserted += SMESH_Block::Insert( v0, vertIdVec[ 0 ], shapeMap);
3946 if ( v1.ShapeType() == TopAbs_VERTEX ) {
3947 nbInserted += SMESH_Block::Insert( v1, vertIdVec[ 1 ], shapeMap);
3950 // TopoDS_Vertex V0, V1, Vcom;
3951 // TopExp::Vertices( myBaseEdge, V0, V1, true );
3952 // if ( !myIsForward ) std::swap( V0, V1 );
3954 // // bottom vertex IDs
3955 // SMESH_Block::GetEdgeVertexIDs( edgeIdVec[ _u0 ], vertIdVec);
3956 // SMESH_Block::Insert( V0, vertIdVec[ 0 ], shapeMap);
3957 // SMESH_Block::Insert( V1, vertIdVec[ 1 ], shapeMap);
3959 // TopoDS_Edge sideEdge = GetEdge( V0_EDGE );
3960 // if ( sideEdge.IsNull() || !TopExp::CommonVertex( botEdge, sideEdge, Vcom ))
3963 // // insert one side edge
3965 // if ( Vcom.IsSame( V0 )) edgeID = edgeIdVec[ _v0 ];
3966 // else edgeID = edgeIdVec[ _v1 ];
3967 // SMESH_Block::Insert( sideEdge, edgeID, shapeMap);
3969 // // top vertex of the side edge
3970 // SMESH_Block::GetEdgeVertexIDs( edgeID, vertIdVec);
3971 // TopoDS_Vertex Vtop = TopExp::FirstVertex( sideEdge );
3972 // if ( Vcom.IsSame( Vtop ))
3973 // Vtop = TopExp::LastVertex( sideEdge );
3974 // SMESH_Block::Insert( Vtop, vertIdVec[ 1 ], shapeMap);
3976 // // other side edge
3977 // sideEdge = GetEdge( V1_EDGE );
3978 // if ( sideEdge.IsNull() )
3980 // if ( edgeID = edgeIdVec[ _v1 ]) edgeID = edgeIdVec[ _v0 ];
3981 // else edgeID = edgeIdVec[ _v1 ];
3982 // SMESH_Block::Insert( sideEdge, edgeID, shapeMap);
3985 // TopoDS_Edge topEdge = GetEdge( TOP_EDGE );
3986 // SMESH_Block::Insert( topEdge, edgeIdVec[ _u1 ], shapeMap);
3988 // // top vertex of the other side edge
3989 // if ( !TopExp::CommonVertex( topEdge, sideEdge, Vcom ))
3991 // SMESH_Block::GetEdgeVertexIDs( edgeID, vertIdVec );
3992 // SMESH_Block::Insert( Vcom, vertIdVec[ 1 ], shapeMap);
3997 //================================================================================
3999 * \brief Dump ids of nodes of sides
4001 //================================================================================
4003 void StdMeshers_PrismAsBlock::TSideFace::dumpNodes(int nbNodes) const
4006 cout << endl << "NODES OF FACE "; SMESH_Block::DumpShapeID( myID, cout ) << endl;
4007 THorizontalEdgeAdaptor* hSize0 = (THorizontalEdgeAdaptor*) HorizCurve(0);
4008 cout << "Horiz side 0: "; hSize0->dumpNodes(nbNodes); cout << endl;
4009 THorizontalEdgeAdaptor* hSize1 = (THorizontalEdgeAdaptor*) HorizCurve(1);
4010 cout << "Horiz side 1: "; hSize1->dumpNodes(nbNodes); cout << endl;
4011 TVerticalEdgeAdaptor* vSide0 = (TVerticalEdgeAdaptor*) VertiCurve(0);
4012 cout << "Verti side 0: "; vSide0->dumpNodes(nbNodes); cout << endl;
4013 TVerticalEdgeAdaptor* vSide1 = (TVerticalEdgeAdaptor*) VertiCurve(1);
4014 cout << "Verti side 1: "; vSide1->dumpNodes(nbNodes); cout << endl;
4015 delete hSize0; delete hSize1; delete vSide0; delete vSide1;
4019 //================================================================================
4021 * \brief Creates TVerticalEdgeAdaptor
4022 * \param columnsMap - node column map
4023 * \param parameter - normalized parameter
4025 //================================================================================
4027 StdMeshers_PrismAsBlock::TVerticalEdgeAdaptor::
4028 TVerticalEdgeAdaptor( const TParam2ColumnMap* columnsMap, const double parameter)
4030 myNodeColumn = & getColumn( columnsMap, parameter )->second;
4033 //================================================================================
4035 * \brief Return coordinates for the given normalized parameter
4036 * \param U - normalized parameter
4037 * \retval gp_Pnt - coordinates
4039 //================================================================================
4041 gp_Pnt StdMeshers_PrismAsBlock::TVerticalEdgeAdaptor::Value(const Standard_Real U) const
4043 const SMDS_MeshNode* n1;
4044 const SMDS_MeshNode* n2;
4045 double r = getRAndNodes( myNodeColumn, U, n1, n2 );
4046 return gpXYZ(n1) * ( 1 - r ) + gpXYZ(n2) * r;
4049 //================================================================================
4051 * \brief Dump ids of nodes
4053 //================================================================================
4055 void StdMeshers_PrismAsBlock::TVerticalEdgeAdaptor::dumpNodes(int nbNodes) const
4058 for ( int i = 0; i < nbNodes && i < myNodeColumn->size(); ++i )
4059 cout << (*myNodeColumn)[i]->GetID() << " ";
4060 if ( nbNodes < myNodeColumn->size() )
4061 cout << myNodeColumn->back()->GetID();
4065 //================================================================================
4067 * \brief Return coordinates for the given normalized parameter
4068 * \param U - normalized parameter
4069 * \retval gp_Pnt - coordinates
4071 //================================================================================
4073 gp_Pnt StdMeshers_PrismAsBlock::THorizontalEdgeAdaptor::Value(const Standard_Real U) const
4075 return mySide->TSideFace::Value( U, myV );
4078 //================================================================================
4080 * \brief Dump ids of <nbNodes> first nodes and the last one
4082 //================================================================================
4084 void StdMeshers_PrismAsBlock::THorizontalEdgeAdaptor::dumpNodes(int nbNodes) const
4087 // Not bedugged code. Last node is sometimes incorrect
4088 const TSideFace* side = mySide;
4090 if ( mySide->IsComplex() )
4091 side = mySide->GetComponent(0,u);
4093 TParam2ColumnIt col, col2;
4094 TParam2ColumnMap* u2cols = side->GetColumns();
4095 side->GetColumns( u , col, col2 );
4097 int j, i = myV ? mySide->ColumnHeight()-1 : 0;
4099 const SMDS_MeshNode* n = 0;
4100 const SMDS_MeshNode* lastN
4101 = side->IsForward() ? u2cols->rbegin()->second[ i ] : u2cols->begin()->second[ i ];
4102 for ( j = 0; j < nbNodes && n != lastN; ++j )
4104 n = col->second[ i ];
4105 cout << n->GetID() << " ";
4106 if ( side->IsForward() )
4114 if ( mySide->IsComplex() )
4115 side = mySide->GetComponent(1,u);
4117 side->GetColumns( u , col, col2 );
4118 if ( n != col->second[ i ] )
4119 cout << col->second[ i ]->GetID();
4123 //================================================================================
4125 * \brief Costructor of TPCurveOnHorFaceAdaptor fills its map of
4126 * normalized parameter to node UV on a horizontal face
4127 * \param [in] sideFace - lateral prism side
4128 * \param [in] isTop - is \a horFace top or bottom of the prism
4129 * \param [in] horFace - top or bottom face of the prism
4131 //================================================================================
4133 StdMeshers_PrismAsBlock::
4134 TPCurveOnHorFaceAdaptor::TPCurveOnHorFaceAdaptor( const TSideFace* sideFace,
4136 const TopoDS_Face& horFace)
4138 if ( sideFace && !horFace.IsNull() )
4140 //cout << "\n\t FACE " << sideFace->FaceID() << endl;
4141 const int Z = isTop ? sideFace->ColumnHeight() - 1 : 0;
4142 map<double, const SMDS_MeshNode* > u2nodes;
4143 sideFace->GetNodesAtZ( Z, u2nodes );
4144 if ( u2nodes.empty() )
4147 SMESH_MesherHelper helper( *sideFace->GetMesh() );
4148 helper.SetSubShape( horFace );
4153 Handle(Geom2d_Curve) C2d;
4155 const double tol = 10 * helper.MaxTolerance( horFace );
4156 const SMDS_MeshNode* prevNode = u2nodes.rbegin()->second;
4158 map<double, const SMDS_MeshNode* >::iterator u2n = u2nodes.begin();
4159 for ( ; u2n != u2nodes.end(); ++u2n )
4161 const SMDS_MeshNode* n = u2n->second;
4163 if ( n->GetPosition()->GetTypeOfPosition() == SMDS_TOP_EDGE )
4165 if ( n->getshapeId() != edgeID )
4168 edgeID = n->getshapeId();
4169 TopoDS_Shape S = helper.GetSubShapeByNode( n, helper.GetMeshDS() );
4170 if ( !S.IsNull() && S.ShapeType() == TopAbs_EDGE )
4172 C2d = BRep_Tool::CurveOnSurface( TopoDS::Edge( S ), horFace, f,l );
4175 if ( !C2d.IsNull() )
4177 double u = static_cast< const SMDS_EdgePosition* >( n->GetPosition() )->GetUParameter();
4178 if ( f <= u && u <= l )
4180 uv = C2d->Value( u ).XY();
4181 okUV = helper.CheckNodeUV( horFace, n, uv, tol );
4186 uv = helper.GetNodeUV( horFace, n, prevNode, &okUV );
4188 myUVmap.insert( myUVmap.end(), make_pair( u2n->first, uv ));
4189 // cout << n->getshapeId() << " N " << n->GetID()
4190 // << " \t" << uv.X() << ", " << uv.Y() << " \t" << u2n->first << endl;
4197 //================================================================================
4199 * \brief Return UV on pcurve for the given normalized parameter
4200 * \param U - normalized parameter
4201 * \retval gp_Pnt - coordinates
4203 //================================================================================
4205 gp_Pnt2d StdMeshers_PrismAsBlock::TPCurveOnHorFaceAdaptor::Value(const Standard_Real U) const
4207 map< double, gp_XY >::const_iterator i1 = myUVmap.upper_bound( U );
4209 if ( i1 == myUVmap.end() )
4210 return myUVmap.empty() ? gp_XY(0,0) : myUVmap.rbegin()->second;
4212 if ( i1 == myUVmap.begin() )
4213 return (*i1).second;
4215 map< double, gp_XY >::const_iterator i2 = i1--;
4217 double r = ( U - i1->first ) / ( i2->first - i1->first );
4218 return i1->second * ( 1 - r ) + i2->second * r;