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 multimap< int, int > wgt2quad;
1275 for ( size_t iW = 0; iW != thePrism.myWallQuads.size(); ++iW )
1277 Prism_3D::TQuadList::const_iterator quad = thePrism.myWallQuads[iW].begin();
1278 int wgt = 0; // "weight"
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() )
1288 else if ( mesh->GetHypothesis( E, hyp1dFilter, true )) // local hypothesis!
1292 wgt2quad.insert( make_pair( wgt, iW ));
1294 // in quadratic mesh, pass ignoreMediumNodes to quad sides
1295 if ( myHelper->GetIsQuadratic() )
1297 quad = thePrism.myWallQuads[iW].begin();
1298 for ( ; quad != thePrism.myWallQuads[iW].end(); ++quad )
1299 for ( int i = 0; i < NB_QUAD_SIDES; ++i )
1300 (*quad)->side[ i ].grid->SetIgnoreMediumNodes( true );
1304 // Project 'vertical' EDGEs, from left to right
1305 multimap< int, int >::reverse_iterator w2q = wgt2quad.rbegin();
1306 for ( ; w2q != wgt2quad.rend(); ++w2q )
1308 const int iW = w2q->second;
1309 const Prism_3D::TQuadList& quads = thePrism.myWallQuads[ iW ];
1310 Prism_3D::TQuadList::const_iterator quad = quads.begin();
1311 for ( ; quad != quads.end(); ++quad )
1313 StdMeshers_FaceSidePtr rgtSide = (*quad)->side[ QUAD_RIGHT_SIDE ]; // tgt
1314 StdMeshers_FaceSidePtr lftSide = (*quad)->side[ QUAD_LEFT_SIDE ]; // src
1315 bool swapLeftRight = ( lftSide->NbSegments( /*update=*/true ) == 0 &&
1316 rgtSide->NbSegments( /*update=*/true ) > 0 );
1317 if ( swapLeftRight )
1318 std::swap( lftSide, rgtSide );
1320 // assure that all the source (left) EDGEs are meshed
1321 int nbSrcSegments = 0;
1322 for ( int i = 0; i < lftSide->NbEdges(); ++i )
1324 const TopoDS_Edge& srcE = lftSide->Edge(i);
1325 SMESH_subMesh* srcSM = mesh->GetSubMesh( srcE );
1326 if ( !srcSM->IsMeshComputed() ) {
1327 DBGOUT( "COMPUTE V edge " << srcSM->GetId() );
1328 TopoDS_Edge prpgSrcE = findPropagationSource( srcE );
1329 if ( !prpgSrcE.IsNull() ) {
1330 srcSM->ComputeSubMeshStateEngine( SMESH_subMesh::COMPUTE );
1331 projector1D->myHyp.SetSourceEdge( prpgSrcE );
1332 projector1D->Compute( *mesh, srcE );
1333 srcSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
1336 srcSM->ComputeSubMeshStateEngine( SMESH_subMesh::COMPUTE );
1337 srcSM->ComputeStateEngine ( SMESH_subMesh::COMPUTE );
1339 if ( !srcSM->IsMeshComputed() )
1340 return toSM( error( "Can't compute 1D mesh" ));
1342 nbSrcSegments += srcSM->GetSubMeshDS()->NbElements();
1344 // check target EDGEs
1345 int nbTgtMeshed = 0, nbTgtSegments = 0;
1346 vector< bool > isTgtEdgeComputed( rgtSide->NbEdges() );
1347 for ( int i = 0; i < rgtSide->NbEdges(); ++i )
1349 const TopoDS_Edge& tgtE = rgtSide->Edge(i);
1350 SMESH_subMesh* tgtSM = mesh->GetSubMesh( tgtE );
1351 if (( isTgtEdgeComputed[ i ] = tgtSM->IsMeshComputed() )) {
1353 nbTgtSegments += tgtSM->GetSubMeshDS()->NbElements();
1356 if ( rgtSide->NbEdges() == nbTgtMeshed ) // all tgt EDGEs meshed
1358 if ( nbTgtSegments != nbSrcSegments )
1360 for ( int i = 0; i < lftSide->NbEdges(); ++i )
1361 addBadInputElements( meshDS->MeshElements( lftSide->Edge( i )));
1362 for ( int i = 0; i < rgtSide->NbEdges(); ++i )
1363 addBadInputElements( meshDS->MeshElements( rgtSide->Edge( i )));
1364 return toSM( error( TCom("Different nb of segment on logically vertical edges #")
1365 << shapeID( lftSide->Edge(0) ) << " and #"
1366 << shapeID( rgtSide->Edge(0) ) << ": "
1367 << nbSrcSegments << " != " << nbTgtSegments ));
1371 // Compute 'vertical projection'
1372 if ( nbTgtMeshed == 0 )
1374 // compute nodes on target VERTEXes
1375 const UVPtStructVec& srcNodeStr = lftSide->GetUVPtStruct();
1376 if ( srcNodeStr.size() == 0 )
1377 return toSM( error( TCom("Invalid node positions on edge #") <<
1378 shapeID( lftSide->Edge(0) )));
1379 vector< SMDS_MeshNode* > newNodes( srcNodeStr.size() );
1380 for ( int is2ndV = 0; is2ndV < 2; ++is2ndV )
1382 const TopoDS_Edge& E = rgtSide->Edge( is2ndV ? rgtSide->NbEdges()-1 : 0 );
1383 TopoDS_Vertex v = myHelper->IthVertex( is2ndV, E );
1384 mesh->GetSubMesh( v )->ComputeStateEngine( SMESH_subMesh::COMPUTE );
1385 const SMDS_MeshNode* n = SMESH_Algo::VertexNode( v, meshDS );
1386 newNodes[ is2ndV ? 0 : newNodes.size()-1 ] = (SMDS_MeshNode*) n;
1389 // compute nodes on target EDGEs
1390 DBGOUT( "COMPUTE V edge (proj) " << shapeID( lftSide->Edge(0)));
1391 rgtSide->Reverse(); // direct it same as the lftSide
1392 myHelper->SetElementsOnShape( false ); // myHelper holds the prism shape
1393 TopoDS_Edge tgtEdge;
1394 for ( size_t iN = 1; iN < srcNodeStr.size()-1; ++iN ) // add nodes
1396 gp_Pnt p = rgtSide->Value3d ( srcNodeStr[ iN ].normParam );
1397 double u = rgtSide->Parameter( srcNodeStr[ iN ].normParam, tgtEdge );
1398 newNodes[ iN ] = meshDS->AddNode( p.X(), p.Y(), p.Z() );
1399 meshDS->SetNodeOnEdge( newNodes[ iN ], tgtEdge, u );
1401 for ( size_t iN = 1; iN < srcNodeStr.size(); ++iN ) // add segments
1403 // find an EDGE to set a new segment
1404 std::pair<int, TopAbs_ShapeEnum> id2type =
1405 myHelper->GetMediumPos( newNodes[ iN-1 ], newNodes[ iN ] );
1406 if ( id2type.second != TopAbs_EDGE )
1408 // new nodes are on different EDGEs; put one of them on VERTEX
1409 const int edgeIndex = rgtSide->EdgeIndex( srcNodeStr[ iN-1 ].normParam );
1410 const double vertexParam = rgtSide->LastParameter( edgeIndex );
1411 const gp_Pnt p = BRep_Tool::Pnt( rgtSide->LastVertex( edgeIndex ));
1412 const int isPrev = ( Abs( srcNodeStr[ iN-1 ].normParam - vertexParam ) <
1413 Abs( srcNodeStr[ iN ].normParam - vertexParam ));
1414 meshDS->UnSetNodeOnShape( newNodes[ iN-isPrev ] );
1415 meshDS->SetNodeOnVertex ( newNodes[ iN-isPrev ], rgtSide->LastVertex( edgeIndex ));
1416 meshDS->MoveNode ( newNodes[ iN-isPrev ], p.X(), p.Y(), p.Z() );
1417 id2type.first = newNodes[ iN-(1-isPrev) ]->getshapeId();
1419 SMDS_MeshElement* newEdge = myHelper->AddEdge( newNodes[ iN-1 ], newNodes[ iN ] );
1420 meshDS->SetMeshElementOnShape( newEdge, id2type.first );
1422 myHelper->SetElementsOnShape( true );
1423 for ( int i = 0; i < rgtSide->NbEdges(); ++i ) // update state of sub-meshes
1425 const TopoDS_Edge& E = rgtSide->Edge( i );
1426 SMESH_subMesh* tgtSM = mesh->GetSubMesh( E );
1427 tgtSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
1430 // to continue projection from the just computed side as a source
1431 if ( !swapLeftRight && rgtSide->NbEdges() > 1 && w2q->second == iW )
1433 std::pair<int,int> wgt2quadKeyVal( w2q->first + 1, thePrism.myRightQuadIndex[ iW ]);
1434 wgt2quad.insert( wgt2quadKeyVal ); // it will be skipped by ++w2q
1435 wgt2quad.insert( wgt2quadKeyVal );
1436 w2q = wgt2quad.rbegin();
1441 // HOPE assigned hypotheses are OK, so that equal nb of segments will be generated
1442 //return toSM( error("Partial projection not implemented"));
1444 } // loop on quads of a composite wall side
1445 } // loop on the ordered wall sides
1449 for ( size_t iW = 0; iW != thePrism.myWallQuads.size(); ++iW )
1451 Prism_3D::TQuadList::const_iterator quad = thePrism.myWallQuads[iW].begin();
1452 for ( ; quad != thePrism.myWallQuads[iW].end(); ++quad )
1454 const TopoDS_Face& face = (*quad)->face;
1455 SMESH_subMesh* fSM = mesh->GetSubMesh( face );
1456 if ( ! fSM->IsMeshComputed() )
1458 // Top EDGEs must be projections from the bottom ones
1459 // to compute stuctured quad mesh on wall FACEs
1460 // ---------------------------------------------------
1461 const TopoDS_Edge& botE = (*quad)->side[ QUAD_BOTTOM_SIDE ].grid->Edge(0);
1462 const TopoDS_Edge& topE = (*quad)->side[ QUAD_TOP_SIDE ].grid->Edge(0);
1463 SMESH_subMesh* botSM = mesh->GetSubMesh( botE );
1464 SMESH_subMesh* topSM = mesh->GetSubMesh( topE );
1465 SMESH_subMesh* srcSM = botSM;
1466 SMESH_subMesh* tgtSM = topSM;
1467 if ( !srcSM->IsMeshComputed() && tgtSM->IsMeshComputed() )
1468 std::swap( srcSM, tgtSM );
1470 if ( !srcSM->IsMeshComputed() )
1472 DBGOUT( "COMPUTE H edge " << srcSM->GetId());
1473 srcSM->ComputeSubMeshStateEngine( SMESH_subMesh::COMPUTE ); // nodes on VERTEXes
1474 srcSM->ComputeStateEngine( SMESH_subMesh::COMPUTE ); // segments on the EDGE
1476 srcSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
1478 if ( tgtSM->IsMeshComputed() &&
1479 tgtSM->GetSubMeshDS()->NbNodes() != srcSM->GetSubMeshDS()->NbNodes() )
1481 // the top EDGE is computed differently than the bottom one,
1482 // try to clear a wrong mesh
1483 bool isAdjFaceMeshed = false;
1484 PShapeIteratorPtr fIt = myHelper->GetAncestors( tgtSM->GetSubShape(),
1485 *mesh, TopAbs_FACE );
1486 while ( const TopoDS_Shape* f = fIt->next() )
1487 if (( isAdjFaceMeshed = mesh->GetSubMesh( *f )->IsMeshComputed() ))
1489 if ( isAdjFaceMeshed )
1490 return toSM( error( TCom("Different nb of segment on logically horizontal edges #")
1491 << shapeID( botE ) << " and #"
1492 << shapeID( topE ) << ": "
1493 << tgtSM->GetSubMeshDS()->NbElements() << " != "
1494 << srcSM->GetSubMeshDS()->NbElements() ));
1495 tgtSM->ComputeStateEngine( SMESH_subMesh::CLEAN );
1497 if ( !tgtSM->IsMeshComputed() )
1499 // compute nodes on VERTEXes
1500 SMESH_subMeshIteratorPtr smIt = tgtSM->getDependsOnIterator(/*includeSelf=*/false);
1501 while ( smIt->more() )
1502 smIt->next()->ComputeStateEngine( SMESH_subMesh::COMPUTE );
1504 DBGOUT( "COMPUTE H edge (proj) " << tgtSM->GetId());
1505 projector1D->myHyp.SetSourceEdge( TopoDS::Edge( srcSM->GetSubShape() ));
1506 projector1D->InitComputeError();
1507 bool ok = projector1D->Compute( *mesh, tgtSM->GetSubShape() );
1510 SMESH_ComputeErrorPtr err = projector1D->GetComputeError();
1511 if ( err->IsOK() ) err->myName = COMPERR_ALGO_FAILED;
1512 tgtSM->GetComputeError() = err;
1516 tgtSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
1519 // Compute quad mesh on wall FACEs
1520 // -------------------------------
1522 // make all EDGES meshed
1523 fSM->ComputeSubMeshStateEngine( SMESH_subMesh::COMPUTE );
1524 if ( !fSM->SubMeshesComputed() )
1525 return toSM( error( COMPERR_BAD_INPUT_MESH,
1526 "Not all edges have valid algorithm and hypothesis"));
1528 quadAlgo->InitComputeError();
1529 DBGOUT( "COMPUTE Quad face " << fSM->GetId());
1530 bool ok = quadAlgo->Compute( *mesh, face );
1531 fSM->GetComputeError() = quadAlgo->GetComputeError();
1534 fSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
1536 if ( myHelper->GetIsQuadratic() )
1538 // fill myHelper with medium nodes built by quadAlgo
1539 SMDS_ElemIteratorPtr fIt = fSM->GetSubMeshDS()->GetElements();
1540 while ( fIt->more() )
1541 myHelper->AddTLinks( dynamic_cast<const SMDS_MeshFace*>( fIt->next() ));
1549 //=======================================================================
1551 * \brief Returns a source EDGE of propagation to a given EDGE
1553 //=======================================================================
1555 TopoDS_Edge StdMeshers_Prism_3D::findPropagationSource( const TopoDS_Edge& E )
1557 if ( myPropagChains )
1558 for ( size_t i = 0; !myPropagChains[i].IsEmpty(); ++i )
1559 if ( myPropagChains[i].Contains( E ))
1560 return TopoDS::Edge( myPropagChains[i].FindKey( 1 ));
1562 return TopoDS_Edge();
1565 //=======================================================================
1566 //function : Evaluate
1568 //=======================================================================
1570 bool StdMeshers_Prism_3D::Evaluate(SMESH_Mesh& theMesh,
1571 const TopoDS_Shape& theShape,
1572 MapShapeNbElems& aResMap)
1574 if ( theShape.ShapeType() == TopAbs_COMPOUND )
1577 for ( TopoDS_Iterator it( theShape ); it.More(); it.Next() )
1578 ok &= Evaluate( theMesh, it.Value(), aResMap );
1581 SMESH_MesherHelper helper( theMesh );
1583 myHelper->SetSubShape( theShape );
1585 // find face contains only triangles
1586 vector < SMESH_subMesh * >meshFaces;
1587 TopTools_SequenceOfShape aFaces;
1588 int NumBase = 0, i = 0, NbQFs = 0;
1589 for (TopExp_Explorer exp(theShape, TopAbs_FACE); exp.More(); exp.Next()) {
1591 aFaces.Append(exp.Current());
1592 SMESH_subMesh *aSubMesh = theMesh.GetSubMesh(exp.Current());
1593 meshFaces.push_back(aSubMesh);
1594 MapShapeNbElemsItr anIt = aResMap.find(meshFaces[i-1]);
1595 if( anIt==aResMap.end() )
1596 return toSM( error( "Submesh can not be evaluated"));
1598 std::vector<int> aVec = (*anIt).second;
1599 int nbtri = Max(aVec[SMDSEntity_Triangle],aVec[SMDSEntity_Quad_Triangle]);
1600 int nbqua = Max(aVec[SMDSEntity_Quadrangle],aVec[SMDSEntity_Quad_Quadrangle]);
1601 if( nbtri==0 && nbqua>0 ) {
1610 std::vector<int> aResVec(SMDSEntity_Last);
1611 for(int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aResVec[i] = 0;
1612 SMESH_subMesh * sm = theMesh.GetSubMesh(theShape);
1613 aResMap.insert(std::make_pair(sm,aResVec));
1614 return toSM( error( "Submesh can not be evaluated" ));
1617 if(NumBase==0) NumBase = 1; // only quads => set 1 faces as base
1619 // find number of 1d elems for base face
1621 TopTools_MapOfShape Edges1;
1622 for (TopExp_Explorer exp(aFaces.Value(NumBase), TopAbs_EDGE); exp.More(); exp.Next()) {
1623 Edges1.Add(exp.Current());
1624 SMESH_subMesh *sm = theMesh.GetSubMesh(exp.Current());
1626 MapShapeNbElemsItr anIt = aResMap.find(sm);
1627 if( anIt == aResMap.end() ) continue;
1628 std::vector<int> aVec = (*anIt).second;
1629 nb1d += Max(aVec[SMDSEntity_Edge],aVec[SMDSEntity_Quad_Edge]);
1632 // find face opposite to base face
1634 for(i=1; i<=6; i++) {
1635 if(i==NumBase) continue;
1636 bool IsOpposite = true;
1637 for(TopExp_Explorer exp(aFaces.Value(i), TopAbs_EDGE); exp.More(); exp.Next()) {
1638 if( Edges1.Contains(exp.Current()) ) {
1648 // find number of 2d elems on side faces
1650 for(i=1; i<=6; i++) {
1651 if( i==OppNum || i==NumBase ) continue;
1652 MapShapeNbElemsItr anIt = aResMap.find( meshFaces[i-1] );
1653 if( anIt == aResMap.end() ) continue;
1654 std::vector<int> aVec = (*anIt).second;
1655 nb2d += Max(aVec[SMDSEntity_Quadrangle],aVec[SMDSEntity_Quad_Quadrangle]);
1658 MapShapeNbElemsItr anIt = aResMap.find( meshFaces[NumBase-1] );
1659 std::vector<int> aVec = (*anIt).second;
1660 bool IsQuadratic = (aVec[SMDSEntity_Quad_Triangle]>aVec[SMDSEntity_Triangle]) ||
1661 (aVec[SMDSEntity_Quad_Quadrangle]>aVec[SMDSEntity_Quadrangle]);
1662 int nb2d_face0_3 = Max(aVec[SMDSEntity_Triangle],aVec[SMDSEntity_Quad_Triangle]);
1663 int nb2d_face0_4 = Max(aVec[SMDSEntity_Quadrangle],aVec[SMDSEntity_Quad_Quadrangle]);
1664 int nb0d_face0 = aVec[SMDSEntity_Node];
1665 int nb1d_face0_int = ( nb2d_face0_3*3 + nb2d_face0_4*4 - nb1d ) / 2;
1667 std::vector<int> aResVec(SMDSEntity_Last);
1668 for(int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aResVec[i] = 0;
1670 aResVec[SMDSEntity_Quad_Penta] = nb2d_face0_3 * ( nb2d/nb1d );
1671 aResVec[SMDSEntity_Quad_Hexa] = nb2d_face0_4 * ( nb2d/nb1d );
1672 aResVec[SMDSEntity_Node] = nb0d_face0 * ( 2*nb2d/nb1d - 1 ) - nb1d_face0_int * nb2d/nb1d;
1675 aResVec[SMDSEntity_Node] = nb0d_face0 * ( nb2d/nb1d - 1 );
1676 aResVec[SMDSEntity_Penta] = nb2d_face0_3 * ( nb2d/nb1d );
1677 aResVec[SMDSEntity_Hexa] = nb2d_face0_4 * ( nb2d/nb1d );
1679 SMESH_subMesh * sm = theMesh.GetSubMesh(theShape);
1680 aResMap.insert(std::make_pair(sm,aResVec));
1685 //================================================================================
1687 * \brief Create prisms
1688 * \param columns - columns of nodes generated from nodes of a mesh face
1689 * \param helper - helper initialized by mesh and shape to add prisms to
1691 //================================================================================
1693 void StdMeshers_Prism_3D::AddPrisms( vector<const TNodeColumn*> & columns,
1694 SMESH_MesherHelper* helper)
1696 int nbNodes = columns.size();
1697 int nbZ = columns[0]->size();
1698 if ( nbZ < 2 ) return;
1700 // find out orientation
1701 bool isForward = true;
1702 SMDS_VolumeTool vTool;
1704 switch ( nbNodes ) {
1706 SMDS_VolumeOfNodes tmpPenta ( (*columns[0])[z-1], // bottom
1709 (*columns[0])[z], // top
1712 vTool.Set( &tmpPenta );
1713 isForward = vTool.IsForward();
1717 SMDS_VolumeOfNodes tmpHex( (*columns[0])[z-1], (*columns[1])[z-1], // bottom
1718 (*columns[2])[z-1], (*columns[3])[z-1],
1719 (*columns[0])[z], (*columns[1])[z], // top
1720 (*columns[2])[z], (*columns[3])[z] );
1721 vTool.Set( &tmpHex );
1722 isForward = vTool.IsForward();
1726 const int di = (nbNodes+1) / 3;
1727 SMDS_VolumeOfNodes tmpVol ( (*columns[0] )[z-1],
1728 (*columns[di] )[z-1],
1729 (*columns[2*di])[z-1],
1732 (*columns[2*di])[z] );
1733 vTool.Set( &tmpVol );
1734 isForward = vTool.IsForward();
1737 // vertical loop on columns
1739 helper->SetElementsOnShape( true );
1741 switch ( nbNodes ) {
1743 case 3: { // ---------- pentahedra
1744 const int i1 = isForward ? 1 : 2;
1745 const int i2 = isForward ? 2 : 1;
1746 for ( z = 1; z < nbZ; ++z )
1747 helper->AddVolume( (*columns[0 ])[z-1], // bottom
1748 (*columns[i1])[z-1],
1749 (*columns[i2])[z-1],
1750 (*columns[0 ])[z], // top
1752 (*columns[i2])[z] );
1755 case 4: { // ---------- hexahedra
1756 const int i1 = isForward ? 1 : 3;
1757 const int i3 = isForward ? 3 : 1;
1758 for ( z = 1; z < nbZ; ++z )
1759 helper->AddVolume( (*columns[0])[z-1], (*columns[i1])[z-1], // bottom
1760 (*columns[2])[z-1], (*columns[i3])[z-1],
1761 (*columns[0])[z], (*columns[i1])[z], // top
1762 (*columns[2])[z], (*columns[i3])[z] );
1765 case 6: { // ---------- octahedra
1766 const int iBase1 = isForward ? -1 : 0;
1767 const int iBase2 = isForward ? 0 :-1;
1768 for ( z = 1; z < nbZ; ++z )
1769 helper->AddVolume( (*columns[0])[z+iBase1], (*columns[1])[z+iBase1], // bottom or top
1770 (*columns[2])[z+iBase1], (*columns[3])[z+iBase1],
1771 (*columns[4])[z+iBase1], (*columns[5])[z+iBase1],
1772 (*columns[0])[z+iBase2], (*columns[1])[z+iBase2], // top or bottom
1773 (*columns[2])[z+iBase2], (*columns[3])[z+iBase2],
1774 (*columns[4])[z+iBase2], (*columns[5])[z+iBase2] );
1777 default: // ---------- polyhedra
1778 vector<int> quantities( 2 + nbNodes, 4 );
1779 quantities[0] = quantities[1] = nbNodes;
1780 columns.resize( nbNodes + 1 );
1781 columns[ nbNodes ] = columns[ 0 ];
1782 const int i1 = isForward ? 1 : 3;
1783 const int i3 = isForward ? 3 : 1;
1784 const int iBase1 = isForward ? -1 : 0;
1785 const int iBase2 = isForward ? 0 :-1;
1786 vector<const SMDS_MeshNode*> nodes( 2*nbNodes + 4*nbNodes);
1787 for ( z = 1; z < nbZ; ++z )
1789 for ( int i = 0; i < nbNodes; ++i ) {
1790 nodes[ i ] = (*columns[ i ])[z+iBase1]; // bottom or top
1791 nodes[ 2*nbNodes-i-1 ] = (*columns[ i ])[z+iBase2]; // top or bottom
1793 int di = 2*nbNodes + 4*i;
1794 nodes[ di+0 ] = (*columns[i ])[z ];
1795 nodes[ di+i1] = (*columns[i+1])[z ];
1796 nodes[ di+2 ] = (*columns[i+1])[z-1];
1797 nodes[ di+i3] = (*columns[i ])[z-1];
1799 helper->AddPolyhedralVolume( nodes, quantities );
1802 } // switch ( nbNodes )
1805 //================================================================================
1807 * \brief Find correspondence between bottom and top nodes
1808 * If elements on the bottom and top faces are topologically different,
1809 * and projection is possible and allowed, perform the projection
1810 * \retval bool - is a success or not
1812 //================================================================================
1814 bool StdMeshers_Prism_3D::assocOrProjBottom2Top( const gp_Trsf & bottomToTopTrsf,
1815 const Prism_3D::TPrismTopo& thePrism)
1817 SMESH_subMesh * botSM = myBlock.SubMesh( ID_BOT_FACE );
1818 SMESH_subMesh * topSM = myBlock.SubMesh( ID_TOP_FACE );
1820 SMESHDS_SubMesh * botSMDS = botSM->GetSubMeshDS();
1821 SMESHDS_SubMesh * topSMDS = topSM->GetSubMeshDS();
1823 if ( !botSMDS || botSMDS->NbElements() == 0 )
1825 _gen->Compute( *myHelper->GetMesh(), botSM->GetSubShape() );
1826 botSMDS = botSM->GetSubMeshDS();
1827 if ( !botSMDS || botSMDS->NbElements() == 0 )
1828 return toSM( error(TCom("No elements on face #") << botSM->GetId() ));
1831 bool needProject = !topSM->IsMeshComputed();
1832 if ( !needProject &&
1833 (botSMDS->NbElements() != topSMDS->NbElements() ||
1834 botSMDS->NbNodes() != topSMDS->NbNodes()))
1836 MESSAGE("nb elem bot " << botSMDS->NbElements() <<
1837 " top " << ( topSMDS ? topSMDS->NbElements() : 0 ));
1838 MESSAGE("nb node bot " << botSMDS->NbNodes() <<
1839 " top " << ( topSMDS ? topSMDS->NbNodes() : 0 ));
1840 return toSM( error(TCom("Mesh on faces #") << botSM->GetId()
1841 <<" and #"<< topSM->GetId() << " seems different" ));
1844 if ( 0/*needProject && !myProjectTriangles*/ )
1845 return toSM( error(TCom("Mesh on faces #") << botSM->GetId()
1846 <<" and #"<< topSM->GetId() << " seems different" ));
1847 ///RETURN_BAD_RESULT("Need to project but not allowed");
1851 return projectBottomToTop( bottomToTopTrsf );
1854 TopoDS_Face botFace = TopoDS::Face( myBlock.Shape( ID_BOT_FACE ));
1855 TopoDS_Face topFace = TopoDS::Face( myBlock.Shape( ID_TOP_FACE ));
1856 // associate top and bottom faces
1857 TAssocTool::TShapeShapeMap shape2ShapeMap;
1858 const bool sameTopo =
1859 TAssocTool::FindSubShapeAssociation( botFace, myBlock.Mesh(),
1860 topFace, myBlock.Mesh(),
1863 for ( size_t iQ = 0; iQ < thePrism.myWallQuads.size(); ++iQ )
1865 const Prism_3D::TQuadList& quadList = thePrism.myWallQuads[iQ];
1866 StdMeshers_FaceSidePtr botSide = quadList.front()->side[ QUAD_BOTTOM_SIDE ];
1867 StdMeshers_FaceSidePtr topSide = quadList.back ()->side[ QUAD_TOP_SIDE ];
1868 if ( botSide->NbEdges() == topSide->NbEdges() )
1870 for ( int iE = 0; iE < botSide->NbEdges(); ++iE )
1872 TAssocTool::InsertAssociation( botSide->Edge( iE ),
1873 topSide->Edge( iE ), shape2ShapeMap );
1874 TAssocTool::InsertAssociation( myHelper->IthVertex( 0, botSide->Edge( iE )),
1875 myHelper->IthVertex( 0, topSide->Edge( iE )),
1881 TopoDS_Vertex vb, vt;
1882 StdMeshers_FaceSidePtr sideB, sideT;
1883 vb = myHelper->IthVertex( 0, botSide->Edge( 0 ));
1884 vt = myHelper->IthVertex( 0, topSide->Edge( 0 ));
1885 sideB = quadList.front()->side[ QUAD_LEFT_SIDE ];
1886 sideT = quadList.back ()->side[ QUAD_LEFT_SIDE ];
1887 if ( vb.IsSame( sideB->FirstVertex() ) &&
1888 vt.IsSame( sideT->LastVertex() ))
1890 TAssocTool::InsertAssociation( botSide->Edge( 0 ),
1891 topSide->Edge( 0 ), shape2ShapeMap );
1892 TAssocTool::InsertAssociation( vb, vt, shape2ShapeMap );
1894 vb = myHelper->IthVertex( 1, botSide->Edge( botSide->NbEdges()-1 ));
1895 vt = myHelper->IthVertex( 1, topSide->Edge( topSide->NbEdges()-1 ));
1896 sideB = quadList.front()->side[ QUAD_RIGHT_SIDE ];
1897 sideT = quadList.back ()->side[ QUAD_RIGHT_SIDE ];
1898 if ( vb.IsSame( sideB->FirstVertex() ) &&
1899 vt.IsSame( sideT->LastVertex() ))
1901 TAssocTool::InsertAssociation( botSide->Edge( botSide->NbEdges()-1 ),
1902 topSide->Edge( topSide->NbEdges()-1 ),
1904 TAssocTool::InsertAssociation( vb, vt, shape2ShapeMap );
1909 // Find matching nodes of top and bottom faces
1910 TNodeNodeMap n2nMap;
1911 if ( ! TAssocTool::FindMatchingNodesOnFaces( botFace, myBlock.Mesh(),
1912 topFace, myBlock.Mesh(),
1913 shape2ShapeMap, n2nMap ))
1916 return toSM( error(TCom("Mesh on faces #") << botSM->GetId()
1917 <<" and #"<< topSM->GetId() << " seems different" ));
1919 return toSM( error(TCom("Topology of faces #") << botSM->GetId()
1920 <<" and #"<< topSM->GetId() << " seems different" ));
1923 // Fill myBotToColumnMap
1925 int zSize = myBlock.VerticalSize();
1927 TNodeNodeMap::iterator bN_tN = n2nMap.begin();
1928 for ( ; bN_tN != n2nMap.end(); ++bN_tN )
1930 const SMDS_MeshNode* botNode = bN_tN->first;
1931 const SMDS_MeshNode* topNode = bN_tN->second;
1932 if ( botNode->GetPosition()->GetTypeOfPosition() != SMDS_TOP_FACE )
1933 continue; // wall columns are contained in myBlock
1934 // create node column
1935 Prism_3D::TNode bN( botNode );
1936 TNode2ColumnMap::iterator bN_col =
1937 myBotToColumnMap.insert( make_pair ( bN, TNodeColumn() )).first;
1938 TNodeColumn & column = bN_col->second;
1939 column.resize( zSize );
1940 column.front() = botNode;
1941 column.back() = topNode;
1946 //================================================================================
1948 * \brief Remove quadrangles from the top face and
1949 * create triangles there by projection from the bottom
1950 * \retval bool - a success or not
1952 //================================================================================
1954 bool StdMeshers_Prism_3D::projectBottomToTop( const gp_Trsf & bottomToTopTrsf )
1956 SMESHDS_Mesh* meshDS = myBlock.MeshDS();
1957 SMESH_subMesh * botSM = myBlock.SubMesh( ID_BOT_FACE );
1958 SMESH_subMesh * topSM = myBlock.SubMesh( ID_TOP_FACE );
1960 SMESHDS_SubMesh * botSMDS = botSM->GetSubMeshDS();
1961 SMESHDS_SubMesh * topSMDS = topSM->GetSubMeshDS();
1963 if ( topSMDS && topSMDS->NbElements() > 0 )
1964 topSM->ComputeStateEngine( SMESH_subMesh::CLEAN );
1966 const TopoDS_Face& botFace = TopoDS::Face( myBlock.Shape( ID_BOT_FACE )); // oriented within
1967 const TopoDS_Face& topFace = TopoDS::Face( myBlock.Shape( ID_TOP_FACE )); // the 3D SHAPE
1968 int topFaceID = meshDS->ShapeToIndex( topFace );
1970 SMESH_MesherHelper botHelper( *myHelper->GetMesh() );
1971 botHelper.SetSubShape( botFace );
1972 botHelper.ToFixNodeParameters( true );
1974 SMESH_MesherHelper topHelper( *myHelper->GetMesh() );
1975 topHelper.SetSubShape( topFace );
1976 topHelper.ToFixNodeParameters( true );
1977 double distXYZ[4], fixTol = 10 * topHelper.MaxTolerance( topFace );
1979 // Fill myBotToColumnMap
1981 int zSize = myBlock.VerticalSize();
1982 Prism_3D::TNode prevTNode;
1983 SMDS_NodeIteratorPtr nIt = botSMDS->GetNodes();
1984 while ( nIt->more() )
1986 const SMDS_MeshNode* botNode = nIt->next();
1987 const SMDS_MeshNode* topNode = 0;
1988 if ( botNode->GetPosition()->GetTypeOfPosition() != SMDS_TOP_FACE )
1989 continue; // strange
1991 Prism_3D::TNode bN( botNode );
1992 if ( bottomToTopTrsf.Form() == gp_Identity )
1994 // compute bottom node params
1995 gp_XYZ paramHint(-1,-1,-1);
1996 if ( prevTNode.IsNeighbor( bN ))
1998 paramHint = prevTNode.GetParams();
1999 // double tol = 1e-2 * ( prevTNode.GetCoords() - bN.GetCoords() ).Modulus();
2000 // myBlock.SetTolerance( Min( myBlock.GetTolerance(), tol ));
2002 if ( !myBlock.ComputeParameters( bN.GetCoords(), bN.ChangeParams(),
2003 ID_BOT_FACE, paramHint ))
2004 return toSM( error(TCom("Can't compute normalized parameters for node ")
2005 << botNode->GetID() << " on the face #"<< botSM->GetId() ));
2007 // compute top node coords
2008 gp_XYZ topXYZ; gp_XY topUV;
2009 if ( !myBlock.FacePoint( ID_TOP_FACE, bN.GetParams(), topXYZ ) ||
2010 !myBlock.FaceUV ( ID_TOP_FACE, bN.GetParams(), topUV ))
2011 return toSM( error(TCom("Can't compute coordinates "
2012 "by normalized parameters on the face #")<< topSM->GetId() ));
2013 topNode = meshDS->AddNode( topXYZ.X(),topXYZ.Y(),topXYZ.Z() );
2014 meshDS->SetNodeOnFace( topNode, topFaceID, topUV.X(), topUV.Y() );
2016 else // use bottomToTopTrsf
2018 gp_XYZ coords = bN.GetCoords();
2019 bottomToTopTrsf.Transforms( coords );
2020 topNode = meshDS->AddNode( coords.X(), coords.Y(), coords.Z() );
2021 gp_XY topUV = botHelper.GetNodeUV( botFace, botNode, 0, &checkUV );
2022 meshDS->SetNodeOnFace( topNode, topFaceID, topUV.X(), topUV.Y() );
2024 if ( topHelper.CheckNodeUV( topFace, topNode, topUV, fixTol, /*force=*/false, distXYZ ) &&
2025 distXYZ[0] > fixTol && distXYZ[0] < fixTol * 1e+3 )
2026 meshDS->MoveNode( topNode, distXYZ[1], distXYZ[2], distXYZ[3] ); // transform can be inaccurate
2028 // create node column
2029 TNode2ColumnMap::iterator bN_col =
2030 myBotToColumnMap.insert( make_pair ( bN, TNodeColumn() )).first;
2031 TNodeColumn & column = bN_col->second;
2032 column.resize( zSize );
2033 column.front() = botNode;
2034 column.back() = topNode;
2039 const bool oldSetElemsOnShape = myHelper->SetElementsOnShape( false );
2041 // care of orientation;
2042 // if the bottom faces is orienetd OK then top faces must be reversed
2043 bool reverseTop = true;
2044 if ( myHelper->NbAncestors( botFace, *myBlock.Mesh(), TopAbs_SOLID ) > 1 )
2045 reverseTop = ! myHelper->IsReversedSubMesh( botFace );
2046 int iFrw, iRev, *iPtr = &( reverseTop ? iRev : iFrw );
2048 // loop on bottom mesh faces
2049 SMDS_ElemIteratorPtr faceIt = botSMDS->GetElements();
2050 vector< const SMDS_MeshNode* > nodes;
2051 while ( faceIt->more() )
2053 const SMDS_MeshElement* face = faceIt->next();
2054 if ( !face || face->GetType() != SMDSAbs_Face )
2057 // find top node in columns for each bottom node
2058 int nbNodes = face->NbCornerNodes();
2059 nodes.resize( nbNodes );
2060 for ( iFrw = 0, iRev = nbNodes-1; iFrw < nbNodes; ++iFrw, --iRev )
2062 const SMDS_MeshNode* n = face->GetNode( *iPtr );
2063 if ( n->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE ) {
2064 TNode2ColumnMap::iterator bot_column = myBotToColumnMap.find( n );
2065 if ( bot_column == myBotToColumnMap.end() )
2066 return toSM( error(TCom("No nodes found above node ") << n->GetID() ));
2067 nodes[ iFrw ] = bot_column->second.back();
2070 const TNodeColumn* column = myBlock.GetNodeColumn( n );
2072 return toSM( error(TCom("No side nodes found above node ") << n->GetID() ));
2073 nodes[ iFrw ] = column->back();
2076 SMDS_MeshElement* newFace = 0;
2077 switch ( nbNodes ) {
2080 newFace = myHelper->AddFace(nodes[0], nodes[1], nodes[2]);
2084 newFace = myHelper->AddFace( nodes[0], nodes[1], nodes[2], nodes[3] );
2088 newFace = meshDS->AddPolygonalFace( nodes );
2091 meshDS->SetMeshElementOnShape( newFace, topFaceID );
2094 myHelper->SetElementsOnShape( oldSetElemsOnShape );
2099 //=======================================================================
2100 //function : project2dMesh
2101 //purpose : Project mesh faces from a source FACE of one prism (theSrcFace)
2102 // to a source FACE of another prism (theTgtFace)
2103 //=======================================================================
2105 bool StdMeshers_Prism_3D::project2dMesh(const TopoDS_Face& theSrcFace,
2106 const TopoDS_Face& theTgtFace)
2108 TProjction2dAlgo* projector2D = TProjction2dAlgo::instance( this );
2109 projector2D->myHyp.SetSourceFace( theSrcFace );
2110 bool ok = projector2D->Compute( *myHelper->GetMesh(), theTgtFace );
2112 SMESH_subMesh* tgtSM = myHelper->GetMesh()->GetSubMesh( theTgtFace );
2113 tgtSM->ComputeStateEngine ( SMESH_subMesh::CHECK_COMPUTE_STATE );
2114 tgtSM->ComputeSubMeshStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
2119 //================================================================================
2121 * \brief Set projection coordinates of a node to a face and it's sub-shapes
2122 * \param faceID - the face given by in-block ID
2123 * \param params - node normalized parameters
2124 * \retval bool - is a success
2126 //================================================================================
2128 bool StdMeshers_Prism_3D::setFaceAndEdgesXYZ( const int faceID, const gp_XYZ& params, int z )
2130 // find base and top edges of the face
2131 enum { BASE = 0, TOP, LEFT, RIGHT };
2132 vector< int > edgeVec; // 0-base, 1-top
2133 SMESH_Block::GetFaceEdgesIDs( faceID, edgeVec );
2135 myBlock.EdgePoint( edgeVec[ BASE ], params, myShapeXYZ[ edgeVec[ BASE ]]);
2136 myBlock.EdgePoint( edgeVec[ TOP ], params, myShapeXYZ[ edgeVec[ TOP ]]);
2138 SHOWYXZ("\nparams ", params);
2139 SHOWYXZ("TOP is " <<edgeVec[ TOP ], myShapeXYZ[ edgeVec[ TOP]]);
2140 SHOWYXZ("BASE is "<<edgeVec[ BASE], myShapeXYZ[ edgeVec[ BASE]]);
2142 if ( faceID == SMESH_Block::ID_Fx0z || faceID == SMESH_Block::ID_Fx1z )
2144 myBlock.EdgePoint( edgeVec[ LEFT ], params, myShapeXYZ[ edgeVec[ LEFT ]]);
2145 myBlock.EdgePoint( edgeVec[ RIGHT ], params, myShapeXYZ[ edgeVec[ RIGHT ]]);
2147 SHOWYXZ("VER "<<edgeVec[ LEFT], myShapeXYZ[ edgeVec[ LEFT]]);
2148 SHOWYXZ("VER "<<edgeVec[ RIGHT], myShapeXYZ[ edgeVec[ RIGHT]]);
2150 myBlock.FacePoint( faceID, params, myShapeXYZ[ faceID ]);
2151 SHOWYXZ("FacePoint "<<faceID, myShapeXYZ[ faceID]);
2156 //=======================================================================
2158 //purpose : If (!isOK), sets the error to a sub-mesh of a current SOLID
2159 //=======================================================================
2161 bool StdMeshers_Prism_3D::toSM( bool isOK )
2163 if ( mySetErrorToSM &&
2166 !myHelper->GetSubShape().IsNull() &&
2167 myHelper->GetSubShape().ShapeType() == TopAbs_SOLID)
2169 SMESH_subMesh* sm = myHelper->GetMesh()->GetSubMesh( myHelper->GetSubShape() );
2170 sm->GetComputeError() = this->GetComputeError();
2171 // clear error in order not to return it twice
2172 _error = COMPERR_OK;
2178 //=======================================================================
2179 //function : shapeID
2180 //purpose : Return index of a shape
2181 //=======================================================================
2183 int StdMeshers_Prism_3D::shapeID( const TopoDS_Shape& S )
2185 if ( S.IsNull() ) return 0;
2186 if ( !myHelper ) return -3;
2187 return myHelper->GetMeshDS()->ShapeToIndex( S );
2190 namespace // utils used by StdMeshers_Prism_3D::IsApplicable()
2192 struct EdgeWithNeighbors
2196 EdgeWithNeighbors(const TopoDS_Edge& E, int iE, int nbE, int shift = 0 ):
2198 _iL( SMESH_MesherHelper::WrapIndex( iE-1, nbE ) + shift ),
2199 _iR( SMESH_MesherHelper::WrapIndex( iE+1, nbE ) + shift )
2202 EdgeWithNeighbors() {}
2207 TopTools_IndexedMapOfShape *_faces; // pointer because its copy constructor is private
2208 TopoDS_Edge _topEdge;
2209 vector< EdgeWithNeighbors >*_edges;
2211 vector< bool > _isCheckedEdge;
2212 int _nbCheckedEdges; // nb of EDGEs whose location is defined
2213 PrismSide *_leftSide;
2214 PrismSide *_rightSide;
2215 const TopoDS_Edge& Edge( int i ) const
2217 return (*_edges)[ i ]._edge;
2219 int FindEdge( const TopoDS_Edge& E ) const
2221 for ( size_t i = 0; i < _edges->size(); ++i )
2222 if ( E.IsSame( Edge( i ))) return i;
2226 //--------------------------------------------------------------------------------
2228 * \brief Return ordered edges of a face
2230 bool getEdges( const TopoDS_Face& face,
2231 vector< EdgeWithNeighbors > & edges,
2232 const bool noHolesAllowed)
2234 list< TopoDS_Edge > ee;
2235 list< int > nbEdgesInWires;
2236 int nbW = SMESH_Block::GetOrderedEdges( face, ee, nbEdgesInWires );
2237 if ( nbW > 1 && noHolesAllowed )
2241 list< TopoDS_Edge >::iterator e = ee.begin();
2242 list< int >::iterator nbE = nbEdgesInWires.begin();
2243 for ( ; nbE != nbEdgesInWires.end(); ++nbE )
2244 for ( iE = 0; iE < *nbE; ++e, ++iE )
2245 if ( SMESH_Algo::isDegenerated( *e ))
2253 e->Orientation( TopAbs_FORWARD ); // for operator==() to work
2258 for ( nbE = nbEdgesInWires.begin(); nbE != nbEdgesInWires.end(); ++nbE )
2260 for ( iE = 0; iE < *nbE; ++e, ++iE )
2261 edges.push_back( EdgeWithNeighbors( *e, iE, *nbE, nbTot ));
2264 return edges.size();
2266 //--------------------------------------------------------------------------------
2268 * \brief Return another faces sharing an edge
2270 const TopoDS_Shape & getAnotherFace( const TopoDS_Face& face,
2271 const TopoDS_Edge& edge,
2272 TopTools_IndexedDataMapOfShapeListOfShape& facesOfEdge)
2274 TopTools_ListIteratorOfListOfShape faceIt( facesOfEdge.FindFromKey( edge ));
2275 for ( ; faceIt.More(); faceIt.Next() )
2276 if ( !face.IsSame( faceIt.Value() ))
2277 return faceIt.Value();
2282 //================================================================================
2284 * \brief Return true if the algorithm can mesh this shape
2285 * \param [in] aShape - shape to check
2286 * \param [in] toCheckAll - if true, this check returns OK if all shapes are OK,
2287 * else, returns OK if at least one shape is OK
2289 //================================================================================
2291 bool StdMeshers_Prism_3D::IsApplicable(const TopoDS_Shape & shape, bool toCheckAll)
2293 TopExp_Explorer sExp( shape, TopAbs_SOLID );
2297 for ( ; sExp.More(); sExp.Next() )
2301 TopExp_Explorer shExp( sExp.Current(), TopAbs_SHELL );
2302 if ( shExp.More() ) {
2303 shell = shExp.Current();
2308 if ( shell.IsNull() ) {
2309 if ( toCheckAll ) return false;
2313 TopTools_IndexedMapOfShape allFaces;
2314 TopExp::MapShapes( shell, TopAbs_FACE, allFaces );
2315 if ( allFaces.Extent() < 3 ) {
2316 if ( toCheckAll ) return false;
2320 if ( allFaces.Extent() == 6 )
2322 TopTools_IndexedMapOfOrientedShape map;
2323 bool isBox = SMESH_Block::FindBlockShapes( TopoDS::Shell( shell ),
2324 TopoDS_Vertex(), TopoDS_Vertex(), map );
2326 if ( !toCheckAll ) return true;
2331 TopTools_IndexedMapOfShape allShapes;
2332 TopExp::MapShapes( shape, allShapes );
2335 TopTools_IndexedDataMapOfShapeListOfShape facesOfEdge;
2336 TopTools_ListIteratorOfListOfShape faceIt;
2337 TopExp::MapShapesAndAncestors( sExp.Current(), TopAbs_EDGE, TopAbs_FACE , facesOfEdge );
2338 if ( facesOfEdge.IsEmpty() ) {
2339 if ( toCheckAll ) return false;
2343 typedef vector< EdgeWithNeighbors > TEdgeWithNeighborsVec;
2344 vector< TEdgeWithNeighborsVec > faceEdgesVec( allFaces.Extent() + 1 );
2345 TopTools_IndexedMapOfShape* facesOfSide = new TopTools_IndexedMapOfShape[ faceEdgesVec.size() ];
2346 SMESHUtils::ArrayDeleter<TopTools_IndexedMapOfShape> delFacesOfSide( facesOfSide );
2348 // try to use each face as a bottom one
2349 bool prismDetected = false;
2350 for ( int iF = 1; iF < allFaces.Extent() && !prismDetected; ++iF )
2352 const TopoDS_Face& botF = TopoDS::Face( allFaces( iF ));
2354 TEdgeWithNeighborsVec& botEdges = faceEdgesVec[ iF ];
2355 if ( botEdges.empty() )
2357 if ( !getEdges( botF, botEdges, /*noHoles=*/false ))
2359 if ( allFaces.Extent()-1 <= (int) botEdges.size() )
2360 continue; // all faces are adjacent to botF - no top FACE
2362 // init data of side FACEs
2363 vector< PrismSide > sides( botEdges.size() );
2364 for ( int iS = 0; iS < botEdges.size(); ++iS )
2366 sides[ iS ]._topEdge = botEdges[ iS ]._edge;
2367 sides[ iS ]._face = botF;
2368 sides[ iS ]._leftSide = & sides[ botEdges[ iS ]._iR ];
2369 sides[ iS ]._rightSide = & sides[ botEdges[ iS ]._iL ];
2370 sides[ iS ]._faces = & facesOfSide[ iS ];
2371 sides[ iS ]._faces->Clear();
2374 bool isOK = true; // ok for a current botF
2375 bool isAdvanced = true;
2376 int nbFoundSideFaces = 0;
2377 for ( int iLoop = 0; isOK && isAdvanced; ++iLoop )
2380 for ( size_t iS = 0; iS < sides.size() && isOK; ++iS )
2382 PrismSide& side = sides[ iS ];
2383 if ( side._face.IsNull() )
2385 if ( side._topEdge.IsNull() )
2387 // find vertical EDGEs --- EGDEs shared with neighbor side FACEs
2388 for ( int is2nd = 0; is2nd < 2 && isOK; ++is2nd ) // 2 adjacent neighbors
2390 int di = is2nd ? 1 : -1;
2391 const PrismSide* adjSide = is2nd ? side._rightSide : side._leftSide;
2392 for ( size_t i = 1; i < side._edges->size(); ++i )
2394 int iE = SMESH_MesherHelper::WrapIndex( i*di + side._iBotEdge, side._edges->size());
2395 if ( side._isCheckedEdge[ iE ] ) continue;
2396 const TopoDS_Edge& vertE = side.Edge( iE );
2397 const TopoDS_Shape& neighborF = getAnotherFace( side._face, vertE, facesOfEdge );
2398 bool isEdgeShared = adjSide->_faces->Contains( neighborF );
2402 side._isCheckedEdge[ iE ] = true;
2403 side._nbCheckedEdges++;
2404 int nbNotCheckedE = side._edges->size() - side._nbCheckedEdges;
2405 if ( nbNotCheckedE == 1 )
2410 if ( i == 1 && iLoop == 0 ) isOK = false;
2416 int nbNotCheckedE = side._edges->size() - side._nbCheckedEdges;
2417 if ( nbNotCheckedE == 1 )
2419 vector<bool>::iterator ii = std::find( side._isCheckedEdge.begin(),
2420 side._isCheckedEdge.end(), false );
2421 if ( ii != side._isCheckedEdge.end() )
2423 size_t iE = std::distance( side._isCheckedEdge.begin(), ii );
2424 side._topEdge = side.Edge( iE );
2427 isOK = ( nbNotCheckedE >= 1 );
2429 else //if ( !side._topEdge.IsNull() )
2431 // get a next face of a side
2432 const TopoDS_Shape& f = getAnotherFace( side._face, side._topEdge, facesOfEdge );
2433 side._faces->Add( f );
2435 if ( f.IsSame( side._face ) || // _topEdge is a seam
2436 SMESH_MesherHelper::Count( f, TopAbs_WIRE, false ) != 1 )
2440 else if ( side._leftSide != & side ) // not closed side face
2442 if ( side._leftSide->_faces->Contains( f ))
2445 side._leftSide->_face.Nullify();
2446 side._leftSide->_topEdge.Nullify();
2448 if ( side._rightSide->_faces->Contains( f ))
2451 side._rightSide->_face.Nullify();
2452 side._rightSide->_topEdge.Nullify();
2457 side._face.Nullify();
2458 side._topEdge.Nullify();
2461 side._face = TopoDS::Face( f );
2462 int faceID = allFaces.FindIndex( side._face );
2463 side._edges = & faceEdgesVec[ faceID ];
2464 if ( side._edges->empty() )
2465 if ( !getEdges( side._face, * side._edges, /*noHoles=*/true ))
2467 const int nbE = side._edges->size();
2472 side._iBotEdge = side.FindEdge( side._topEdge );
2473 side._isCheckedEdge.clear();
2474 side._isCheckedEdge.resize( nbE, false );
2475 side._isCheckedEdge[ side._iBotEdge ] = true;
2476 side._nbCheckedEdges = 1; // bottom EDGE is known
2478 side._topEdge.Nullify();
2479 isOK = ( !side._edges->empty() || side._faces->Extent() > 1 );
2481 } //if ( !side._topEdge.IsNull() )
2483 } // loop on prism sides
2485 if ( nbFoundSideFaces > allFaces.Extent() )
2489 if ( iLoop > allFaces.Extent() * 10 )
2493 cerr << "BUG: infinite loop in StdMeshers_Prism_3D::IsApplicable()" << endl;
2496 } // while isAdvanced
2498 if ( isOK && sides[0]._faces->Extent() > 1 )
2500 const int nbFaces = sides[0]._faces->Extent();
2501 if ( botEdges.size() == 1 ) // cylinder
2503 prismDetected = ( nbFaces == allFaces.Extent()-1 );
2507 const TopoDS_Shape& topFace = sides[0]._faces->FindKey( nbFaces );
2509 for ( iS = 1; iS < sides.size(); ++iS )
2510 if ( !sides[ iS ]._faces->Contains( topFace ))
2512 prismDetected = ( iS == sides.size() );
2515 } // loop on allFaces
2517 if ( !prismDetected && toCheckAll ) return false;
2518 if ( prismDetected && !toCheckAll ) return true;
2527 //================================================================================
2529 * \brief Return true if this node and other one belong to one face
2531 //================================================================================
2533 bool Prism_3D::TNode::IsNeighbor( const Prism_3D::TNode& other ) const
2535 if ( !other.myNode || !myNode ) return false;
2537 SMDS_ElemIteratorPtr fIt = other.myNode->GetInverseElementIterator(SMDSAbs_Face);
2538 while ( fIt->more() )
2539 if ( fIt->next()->GetNodeIndex( myNode ) >= 0 )
2544 //================================================================================
2546 * \brief Prism initialization
2548 //================================================================================
2550 void TPrismTopo::Clear()
2552 myShape3D.Nullify();
2555 myWallQuads.clear();
2556 myBottomEdges.clear();
2557 myNbEdgesInWires.clear();
2558 myWallQuads.clear();
2561 //================================================================================
2563 * \brief Set upside-down
2565 //================================================================================
2567 void TPrismTopo::SetUpsideDown()
2569 std::swap( myBottom, myTop );
2570 myBottomEdges.clear();
2571 std::reverse( myBottomEdges.begin(), myBottomEdges.end() );
2572 for ( size_t i = 0; i < myWallQuads.size(); ++i )
2574 myWallQuads[i].reverse();
2575 TQuadList::iterator q = myWallQuads[i].begin();
2576 for ( ; q != myWallQuads[i].end(); ++q )
2578 (*q)->shift( 2, /*keepUnitOri=*/true );
2580 myBottomEdges.push_back( myWallQuads[i].front()->side[ QUAD_BOTTOM_SIDE ].grid->Edge(0) );
2584 } // namespace Prism_3D
2586 //================================================================================
2588 * \brief Constructor. Initialization is needed
2590 //================================================================================
2592 StdMeshers_PrismAsBlock::StdMeshers_PrismAsBlock()
2597 StdMeshers_PrismAsBlock::~StdMeshers_PrismAsBlock()
2601 void StdMeshers_PrismAsBlock::Clear()
2604 myShapeIDMap.Clear();
2608 delete mySide; mySide = 0;
2610 myParam2ColumnMaps.clear();
2611 myShapeIndex2ColumnMap.clear();
2614 //=======================================================================
2615 //function : initPrism
2616 //purpose : Analyse shape geometry and mesh.
2617 // If there are triangles on one of faces, it becomes 'bottom'.
2618 // thePrism.myBottom can be already set up.
2619 //=======================================================================
2621 bool StdMeshers_Prism_3D::initPrism(Prism_3D::TPrismTopo& thePrism,
2622 const TopoDS_Shape& shape3D)
2624 myHelper->SetSubShape( shape3D );
2626 SMESH_subMesh* mainSubMesh = myHelper->GetMesh()->GetSubMeshContaining( shape3D );
2627 if ( !mainSubMesh ) return toSM( error(COMPERR_BAD_INPUT_MESH,"Null submesh of shape3D"));
2629 // detect not-quad FACE sub-meshes of the 3D SHAPE
2630 list< SMESH_subMesh* > notQuadGeomSubMesh;
2631 list< SMESH_subMesh* > notQuadElemSubMesh;
2634 SMESH_subMesh* anyFaceSM = 0;
2635 SMESH_subMeshIteratorPtr smIt = mainSubMesh->getDependsOnIterator(false,true);
2636 while ( smIt->more() )
2638 SMESH_subMesh* sm = smIt->next();
2639 const TopoDS_Shape& face = sm->GetSubShape();
2640 if ( face.ShapeType() > TopAbs_FACE ) break;
2641 else if ( face.ShapeType() < TopAbs_FACE ) continue;
2645 // is quadrangle FACE?
2646 list< TopoDS_Edge > orderedEdges;
2647 list< int > nbEdgesInWires;
2648 int nbWires = SMESH_Block::GetOrderedEdges( TopoDS::Face( face ), orderedEdges,
2650 if ( nbWires != 1 || nbEdgesInWires.front() != 4 )
2651 notQuadGeomSubMesh.push_back( sm );
2653 // look for not quadrangle mesh elements
2654 if ( SMESHDS_SubMesh* smDS = sm->GetSubMeshDS() )
2655 if ( !myHelper->IsSameElemGeometry( smDS, SMDSGeom_QUADRANGLE ))
2656 notQuadElemSubMesh.push_back( sm );
2659 int nbNotQuadMeshed = notQuadElemSubMesh.size();
2660 int nbNotQuad = notQuadGeomSubMesh.size();
2661 bool hasNotQuad = ( nbNotQuad || nbNotQuadMeshed );
2664 if ( nbNotQuadMeshed > 2 )
2666 return toSM( error(COMPERR_BAD_INPUT_MESH,
2667 TCom("More than 2 faces with not quadrangle elements: ")
2668 <<nbNotQuadMeshed));
2670 if ( nbNotQuad > 2 || !thePrism.myBottom.IsNull() )
2672 // Issue 0020843 - one of side FACEs is quasi-quadrilateral (not 4 EDGEs).
2673 // Remove from notQuadGeomSubMesh faces meshed with regular grid
2674 int nbQuasiQuads = removeQuasiQuads( notQuadGeomSubMesh, myHelper,
2675 TQuadrangleAlgo::instance(this,myHelper) );
2676 nbNotQuad -= nbQuasiQuads;
2677 if ( nbNotQuad > 2 )
2678 return toSM( error(COMPERR_BAD_SHAPE,
2679 TCom("More than 2 not quadrilateral faces: ") <<nbNotQuad));
2680 hasNotQuad = ( nbNotQuad || nbNotQuadMeshed );
2683 // Analyse mesh and topology of FACEs: choose the bottom sub-mesh.
2684 // If there are not quadrangle FACEs, they are top and bottom ones.
2685 // Not quadrangle FACEs must be only on top and bottom.
2687 SMESH_subMesh * botSM = 0;
2688 SMESH_subMesh * topSM = 0;
2690 if ( hasNotQuad ) // can choose a bottom FACE
2692 if ( nbNotQuadMeshed > 0 ) botSM = notQuadElemSubMesh.front();
2693 else botSM = notQuadGeomSubMesh.front();
2694 if ( nbNotQuadMeshed > 1 ) topSM = notQuadElemSubMesh.back();
2695 else if ( nbNotQuad > 1 ) topSM = notQuadGeomSubMesh.back();
2697 if ( topSM == botSM ) {
2698 if ( nbNotQuadMeshed > 1 ) topSM = notQuadElemSubMesh.front();
2699 else topSM = notQuadGeomSubMesh.front();
2702 // detect mesh triangles on wall FACEs
2703 if ( nbNotQuad == 2 && nbNotQuadMeshed > 0 ) {
2705 if ( nbNotQuadMeshed == 1 )
2706 ok = ( find( notQuadGeomSubMesh.begin(),
2707 notQuadGeomSubMesh.end(), botSM ) != notQuadGeomSubMesh.end() );
2709 ok = ( notQuadGeomSubMesh == notQuadElemSubMesh );
2711 return toSM( error(COMPERR_BAD_INPUT_MESH,
2712 "Side face meshed with not quadrangle elements"));
2716 thePrism.myNotQuadOnTop = ( nbNotQuadMeshed > 1 );
2718 // use thePrism.myBottom
2719 if ( !thePrism.myBottom.IsNull() )
2722 if ( ! botSM->GetSubShape().IsSame( thePrism.myBottom )) {
2723 std::swap( botSM, topSM );
2724 if ( !botSM || ! botSM->GetSubShape().IsSame( thePrism.myBottom ))
2725 return toSM( error( COMPERR_BAD_INPUT_MESH,
2726 "Incompatible non-structured sub-meshes"));
2730 botSM = myHelper->GetMesh()->GetSubMesh( thePrism.myBottom );
2733 else if ( !botSM ) // find a proper bottom
2735 // composite walls or not prism shape
2736 for ( TopExp_Explorer f( shape3D, TopAbs_FACE ); f.More(); f.Next() )
2738 int minNbFaces = 2 + myHelper->Count( f.Current(), TopAbs_EDGE, false);
2739 if ( nbFaces >= minNbFaces)
2742 thePrism.myBottom = TopoDS::Face( f.Current() );
2743 if ( initPrism( thePrism, shape3D ))
2746 return toSM( error( COMPERR_BAD_SHAPE ));
2750 // find vertex 000 - the one with smallest coordinates (for easy DEBUG :-)
2752 double minVal = DBL_MAX, minX, val;
2753 for ( TopExp_Explorer exp( botSM->GetSubShape(), TopAbs_VERTEX );
2754 exp.More(); exp.Next() )
2756 const TopoDS_Vertex& v = TopoDS::Vertex( exp.Current() );
2757 gp_Pnt P = BRep_Tool::Pnt( v );
2758 val = P.X() + P.Y() + P.Z();
2759 if ( val < minVal || ( val == minVal && P.X() < minX )) {
2766 thePrism.myShape3D = shape3D;
2767 if ( thePrism.myBottom.IsNull() )
2768 thePrism.myBottom = TopoDS::Face( botSM->GetSubShape() );
2769 thePrism.myBottom.Orientation( myHelper->GetSubShapeOri( shape3D,
2770 thePrism.myBottom ));
2771 // Get ordered bottom edges
2772 TopoDS_Face reverseBottom = // to have order of top EDGEs as in the top FACE
2773 TopoDS::Face( thePrism.myBottom.Reversed() );
2774 SMESH_Block::GetOrderedEdges( reverseBottom,
2775 thePrism.myBottomEdges,
2776 thePrism.myNbEdgesInWires, V000 );
2778 // Get Wall faces corresponding to the ordered bottom edges and the top FACE
2779 if ( !getWallFaces( thePrism, nbFaces ))
2780 return false; //toSM( error(COMPERR_BAD_SHAPE, "Can't find side faces"));
2784 if ( !thePrism.myTop.IsSame( topSM->GetSubShape() ))
2786 (notQuadGeomSubMesh.empty() ? COMPERR_BAD_INPUT_MESH : COMPERR_BAD_SHAPE,
2787 "Non-quadrilateral faces are not opposite"));
2789 // check that the found top and bottom FACEs are opposite
2790 list< TopoDS_Edge >::iterator edge = thePrism.myBottomEdges.begin();
2791 for ( ; edge != thePrism.myBottomEdges.end(); ++edge )
2792 if ( myHelper->IsSubShape( *edge, thePrism.myTop ))
2794 (notQuadGeomSubMesh.empty() ? COMPERR_BAD_INPUT_MESH : COMPERR_BAD_SHAPE,
2795 "Non-quadrilateral faces are not opposite"));
2798 if ( thePrism.myBottomEdges.size() > thePrism.myWallQuads.size() )
2800 // composite bottom sides => set thePrism upside-down
2801 thePrism.SetUpsideDown();
2807 //================================================================================
2809 * \brief Initialization.
2810 * \param helper - helper loaded with mesh and 3D shape
2811 * \param thePrism - a prism data
2812 * \retval bool - false if a mesh or a shape are KO
2814 //================================================================================
2816 bool StdMeshers_PrismAsBlock::Init(SMESH_MesherHelper* helper,
2817 const Prism_3D::TPrismTopo& thePrism)
2820 SMESHDS_Mesh* meshDS = myHelper->GetMeshDS();
2821 SMESH_Mesh* mesh = myHelper->GetMesh();
2824 delete mySide; mySide = 0;
2826 vector< TSideFace* > sideFaces( NB_WALL_FACES, 0 );
2827 vector< pair< double, double> > params( NB_WALL_FACES );
2828 mySide = new TSideFace( *mesh, sideFaces, params );
2831 SMESH_Block::init();
2832 myShapeIDMap.Clear();
2833 myShapeIndex2ColumnMap.clear();
2835 int wallFaceIds[ NB_WALL_FACES ] = { // to walk around a block
2836 SMESH_Block::ID_Fx0z, SMESH_Block::ID_F1yz,
2837 SMESH_Block::ID_Fx1z, SMESH_Block::ID_F0yz
2840 myError = SMESH_ComputeError::New();
2842 myNotQuadOnTop = thePrism.myNotQuadOnTop;
2844 // Find columns of wall nodes and calculate edges' lengths
2845 // --------------------------------------------------------
2847 myParam2ColumnMaps.clear();
2848 myParam2ColumnMaps.resize( thePrism.myBottomEdges.size() ); // total nb edges
2850 size_t iE, nbEdges = thePrism.myNbEdgesInWires.front(); // nb outer edges
2851 vector< double > edgeLength( nbEdges );
2852 multimap< double, int > len2edgeMap;
2854 // for each EDGE: either split into several parts, or join with several next EDGEs
2855 vector<int> nbSplitPerEdge( nbEdges, 0 );
2856 vector<int> nbUnitePerEdge( nbEdges, 0 ); // -1 means "joined to a previous"
2858 // consider continuous straight EDGEs as one side
2859 const int nbSides = countNbSides( thePrism, nbUnitePerEdge, edgeLength );
2861 list< TopoDS_Edge >::const_iterator edgeIt = thePrism.myBottomEdges.begin();
2862 for ( iE = 0; iE < nbEdges; ++iE, ++edgeIt )
2864 TParam2ColumnMap & faceColumns = myParam2ColumnMaps[ iE ];
2866 Prism_3D::TQuadList::const_iterator quad = thePrism.myWallQuads[ iE ].begin();
2867 for ( ; quad != thePrism.myWallQuads[ iE ].end(); ++quad )
2869 const TopoDS_Edge& quadBot = (*quad)->side[ QUAD_BOTTOM_SIDE ].grid->Edge( 0 );
2870 if ( !myHelper->LoadNodeColumns( faceColumns, (*quad)->face, quadBot, meshDS ))
2871 return error(COMPERR_BAD_INPUT_MESH, TCom("Can't find regular quadrangle mesh ")
2872 << "on a side face #" << MeshDS()->ShapeToIndex( (*quad)->face ));
2874 SHOWYXZ("\np1 F " <<iE, gpXYZ(faceColumns.begin()->second.front() ));
2875 SHOWYXZ("p2 F " <<iE, gpXYZ(faceColumns.rbegin()->second.front() ));
2876 SHOWYXZ("V First "<<iE, BRep_Tool::Pnt( TopExp::FirstVertex(*edgeIt,true )));
2878 if ( nbSides < NB_WALL_FACES ) // fill map used to split faces
2879 len2edgeMap.insert( make_pair( edgeLength[ iE ], iE )); // sort edges by length
2881 // Load columns of internal edges (forming holes)
2882 // and fill map ShapeIndex to TParam2ColumnMap for them
2883 for ( ; edgeIt != thePrism.myBottomEdges.end() ; ++edgeIt, ++iE )
2885 TParam2ColumnMap & faceColumns = myParam2ColumnMaps[ iE ];
2887 Prism_3D::TQuadList::const_iterator quad = thePrism.myWallQuads[ iE ].begin();
2888 for ( ; quad != thePrism.myWallQuads[ iE ].end(); ++quad )
2890 const TopoDS_Edge& quadBot = (*quad)->side[ QUAD_BOTTOM_SIDE ].grid->Edge( 0 );
2891 if ( !myHelper->LoadNodeColumns( faceColumns, (*quad)->face, quadBot, meshDS ))
2892 return error(COMPERR_BAD_INPUT_MESH, TCom("Can't find regular quadrangle mesh ")
2893 << "on a side face #" << MeshDS()->ShapeToIndex( (*quad)->face ));
2896 int id = MeshDS()->ShapeToIndex( *edgeIt );
2897 bool isForward = true; // meaningless for intenal wires
2898 myShapeIndex2ColumnMap[ id ] = make_pair( & faceColumns, isForward );
2899 // columns for vertices
2901 const SMDS_MeshNode* n0 = faceColumns.begin()->second.front();
2902 id = n0->getshapeId();
2903 myShapeIndex2ColumnMap[ id ] = make_pair( & faceColumns, isForward );
2905 const SMDS_MeshNode* n1 = faceColumns.rbegin()->second.front();
2906 id = n1->getshapeId();
2907 myShapeIndex2ColumnMap[ id ] = make_pair( & faceColumns, isForward );
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 )));
2914 // Create 4 wall faces of a block
2915 // -------------------------------
2917 if ( nbSides <= NB_WALL_FACES ) // ************* Split faces if necessary
2919 if ( nbSides != NB_WALL_FACES ) // define how to split
2921 if ( len2edgeMap.size() != nbEdges )
2922 RETURN_BAD_RESULT("Uniqueness of edge lengths not assured");
2924 multimap< double, int >::reverse_iterator maxLen_i = len2edgeMap.rbegin();
2925 multimap< double, int >::reverse_iterator midLen_i = ++len2edgeMap.rbegin();
2927 double maxLen = maxLen_i->first;
2928 double midLen = ( len2edgeMap.size() == 1 ) ? 0 : midLen_i->first;
2929 switch ( nbEdges ) {
2930 case 1: // 0-th edge is split into 4 parts
2931 nbSplitPerEdge[ 0 ] = 4;
2933 case 2: // either the longest edge is split into 3 parts, or both edges into halves
2934 if ( maxLen / 3 > midLen / 2 ) {
2935 nbSplitPerEdge[ maxLen_i->second ] = 3;
2938 nbSplitPerEdge[ maxLen_i->second ] = 2;
2939 nbSplitPerEdge[ midLen_i->second ] = 2;
2944 // split longest into 3 parts
2945 nbSplitPerEdge[ maxLen_i->second ] = 3;
2947 // split longest into halves
2948 nbSplitPerEdge[ maxLen_i->second ] = 2;
2952 else // **************************** Unite faces
2954 int nbExraFaces = nbSides - 4; // nb of faces to fuse
2955 for ( iE = 0; iE < nbEdges; ++iE )
2957 if ( nbUnitePerEdge[ iE ] < 0 )
2959 // look for already united faces
2960 for ( int i = iE; i < iE + nbExraFaces; ++i )
2962 if ( nbUnitePerEdge[ i ] > 0 ) // a side including nbUnitePerEdge[i]+1 edge
2963 nbExraFaces += nbUnitePerEdge[ i ];
2964 nbUnitePerEdge[ i ] = -1;
2966 nbUnitePerEdge[ iE ] = nbExraFaces;
2971 // Create TSideFace's
2973 list< TopoDS_Edge >::const_iterator botE = thePrism.myBottomEdges.begin();
2974 for ( iE = 0; iE < nbEdges; ++iE, ++botE )
2976 TFaceQuadStructPtr quad = thePrism.myWallQuads[ iE ].front();
2977 const int nbSplit = nbSplitPerEdge[ iE ];
2978 const int nbExraFaces = nbUnitePerEdge[ iE ] + 1;
2979 if ( nbSplit > 0 ) // split
2981 vector< double > params;
2982 splitParams( nbSplit, &myParam2ColumnMaps[ iE ], params );
2983 const bool isForward =
2984 StdMeshers_PrismAsBlock::IsForwardEdge( myHelper->GetMeshDS(),
2985 myParam2ColumnMaps[iE],
2986 *botE, SMESH_Block::ID_Fx0z );
2987 for ( int i = 0; i < nbSplit; ++i ) {
2988 double f = ( isForward ? params[ i ] : params[ nbSplit - i-1 ]);
2989 double l = ( isForward ? params[ i+1 ] : params[ nbSplit - i ]);
2990 TSideFace* comp = new TSideFace( *mesh, wallFaceIds[ iSide ],
2991 thePrism.myWallQuads[ iE ], *botE,
2992 &myParam2ColumnMaps[ iE ], f, l );
2993 mySide->SetComponent( iSide++, comp );
2996 else if ( nbExraFaces > 1 ) // unite
2998 double u0 = 0, sumLen = 0;
2999 for ( int i = iE; i < iE + nbExraFaces; ++i )
3000 sumLen += edgeLength[ i ];
3002 vector< TSideFace* > components( nbExraFaces );
3003 vector< pair< double, double> > params( nbExraFaces );
3004 bool endReached = false;
3005 for ( int i = 0; i < nbExraFaces; ++i, ++botE, ++iE )
3007 if ( iE == nbEdges )
3010 botE = thePrism.myBottomEdges.begin();
3013 components[ i ] = new TSideFace( *mesh, wallFaceIds[ iSide ],
3014 thePrism.myWallQuads[ iE ], *botE,
3015 &myParam2ColumnMaps[ iE ]);
3016 double u1 = u0 + edgeLength[ iE ] / sumLen;
3017 params[ i ] = make_pair( u0 , u1 );
3020 TSideFace* comp = new TSideFace( *mesh, components, params );
3021 mySide->SetComponent( iSide++, comp );
3024 --iE; // for increment in an external loop on iE
3027 else if ( nbExraFaces < 0 ) // skip already united face
3032 TSideFace* comp = new TSideFace( *mesh, wallFaceIds[ iSide ],
3033 thePrism.myWallQuads[ iE ], *botE,
3034 &myParam2ColumnMaps[ iE ]);
3035 mySide->SetComponent( iSide++, comp );
3040 // Fill geometry fields of SMESH_Block
3041 // ------------------------------------
3043 vector< int > botEdgeIdVec;
3044 SMESH_Block::GetFaceEdgesIDs( ID_BOT_FACE, botEdgeIdVec );
3046 bool isForward[NB_WALL_FACES] = { true, true, true, true };
3047 Adaptor2d_Curve2d* botPcurves[NB_WALL_FACES];
3048 Adaptor2d_Curve2d* topPcurves[NB_WALL_FACES];
3050 for ( int iF = 0; iF < NB_WALL_FACES; ++iF )
3052 TSideFace * sideFace = mySide->GetComponent( iF );
3054 RETURN_BAD_RESULT("NULL TSideFace");
3055 int fID = sideFace->FaceID(); // in-block ID
3057 // fill myShapeIDMap
3058 if ( sideFace->InsertSubShapes( myShapeIDMap ) != 8 &&
3059 !sideFace->IsComplex())
3060 MESSAGE( ": Warning : InsertSubShapes() < 8 on side " << iF );
3062 // side faces geometry
3063 Adaptor2d_Curve2d* pcurves[NB_WALL_FACES];
3064 if ( !sideFace->GetPCurves( pcurves ))
3065 RETURN_BAD_RESULT("TSideFace::GetPCurves() failed");
3067 SMESH_Block::TFace& tFace = myFace[ fID - ID_FirstF ];
3068 tFace.Set( fID, sideFace->Surface(), pcurves, isForward );
3070 SHOWYXZ( endl<<"F "<< iF << " id " << fID << " FRW " << sideFace->IsForward(), sideFace->Value(0,0));
3071 // edges 3D geometry
3072 vector< int > edgeIdVec;
3073 SMESH_Block::GetFaceEdgesIDs( fID, edgeIdVec );
3074 for ( int isMax = 0; isMax < 2; ++isMax ) {
3076 int eID = edgeIdVec[ isMax ];
3077 SMESH_Block::TEdge& tEdge = myEdge[ eID - ID_FirstE ];
3078 tEdge.Set( eID, sideFace->HorizCurve(isMax), true);
3079 SHOWYXZ(eID<<" HOR"<<isMax<<"(0)", sideFace->HorizCurve(isMax)->Value(0));
3080 SHOWYXZ(eID<<" HOR"<<isMax<<"(1)", sideFace->HorizCurve(isMax)->Value(1));
3083 int eID = edgeIdVec[ isMax+2 ];
3084 SMESH_Block::TEdge& tEdge = myEdge[ eID - ID_FirstE ];
3085 tEdge.Set( eID, sideFace->VertiCurve(isMax), true);
3086 SHOWYXZ(eID<<" VER"<<isMax<<"(0)", sideFace->VertiCurve(isMax)->Value(0));
3087 SHOWYXZ(eID<<" VER"<<isMax<<"(1)", sideFace->VertiCurve(isMax)->Value(1));
3090 vector< int > vertexIdVec;
3091 SMESH_Block::GetEdgeVertexIDs( eID, vertexIdVec );
3092 myPnt[ vertexIdVec[0] - ID_FirstV ] = tEdge.GetCurve()->Value(0).XYZ();
3093 myPnt[ vertexIdVec[1] - ID_FirstV ] = tEdge.GetCurve()->Value(1).XYZ();
3096 // pcurves on horizontal faces
3097 for ( iE = 0; iE < NB_WALL_FACES; ++iE ) {
3098 if ( edgeIdVec[ BOTTOM_EDGE ] == botEdgeIdVec[ iE ] ) {
3099 botPcurves[ iE ] = sideFace->HorizPCurve( false, thePrism.myBottom );
3100 topPcurves[ iE ] = sideFace->HorizPCurve( true, thePrism.myTop );
3104 //sideFace->dumpNodes( 4 ); // debug
3106 // horizontal faces geometry
3108 SMESH_Block::TFace& tFace = myFace[ ID_BOT_FACE - ID_FirstF ];
3109 tFace.Set( ID_BOT_FACE, new BRepAdaptor_Surface( thePrism.myBottom ), botPcurves, isForward );
3110 SMESH_Block::Insert( thePrism.myBottom, ID_BOT_FACE, myShapeIDMap );
3113 SMESH_Block::TFace& tFace = myFace[ ID_TOP_FACE - ID_FirstF ];
3114 tFace.Set( ID_TOP_FACE, new BRepAdaptor_Surface( thePrism.myTop ), topPcurves, isForward );
3115 SMESH_Block::Insert( thePrism.myTop, ID_TOP_FACE, myShapeIDMap );
3117 //faceGridToPythonDump( SMESH_Block::ID_Fxy0, 50 );
3118 //faceGridToPythonDump( SMESH_Block::ID_Fxy1 );
3120 // Fill map ShapeIndex to TParam2ColumnMap
3121 // ----------------------------------------
3123 list< TSideFace* > fList;
3124 list< TSideFace* >::iterator fListIt;
3125 fList.push_back( mySide );
3126 for ( fListIt = fList.begin(); fListIt != fList.end(); ++fListIt)
3128 int nb = (*fListIt)->NbComponents();
3129 for ( int i = 0; i < nb; ++i ) {
3130 if ( TSideFace* comp = (*fListIt)->GetComponent( i ))
3131 fList.push_back( comp );
3133 if ( TParam2ColumnMap* cols = (*fListIt)->GetColumns()) {
3134 // columns for a base edge
3135 int id = MeshDS()->ShapeToIndex( (*fListIt)->BaseEdge() );
3136 bool isForward = (*fListIt)->IsForward();
3137 myShapeIndex2ColumnMap[ id ] = make_pair( cols, isForward );
3139 // columns for vertices
3140 const SMDS_MeshNode* n0 = cols->begin()->second.front();
3141 id = n0->getshapeId();
3142 myShapeIndex2ColumnMap[ id ] = make_pair( cols, isForward );
3144 const SMDS_MeshNode* n1 = cols->rbegin()->second.front();
3145 id = n1->getshapeId();
3146 myShapeIndex2ColumnMap[ id ] = make_pair( cols, !isForward );
3150 // #define SHOWYXZ(msg, xyz) { \
3151 // gp_Pnt p (xyz); \
3152 // cout << msg << " ("<< p.X() << "; " <<p.Y() << "; " <<p.Z() << ") " <<endl; \
3154 // double _u[]={ 0.1, 0.1, 0.9, 0.9 };
3155 // double _v[]={ 0.1, 0.9, 0.1, 0.9 };
3156 // for ( int z = 0; z < 2; ++z )
3157 // for ( int i = 0; i < 4; ++i )
3159 // //gp_XYZ testPar(0.25, 0.25, 0), testCoord;
3160 // int iFace = (z ? ID_TOP_FACE : ID_BOT_FACE);
3161 // gp_XYZ testPar(_u[i], _v[i], z), testCoord;
3162 // if ( !FacePoint( iFace, testPar, testCoord ))
3163 // RETURN_BAD_RESULT("TEST FacePoint() FAILED");
3164 // SHOWYXZ("IN TEST PARAM" , testPar);
3165 // SHOWYXZ("OUT TEST CORD" , testCoord);
3166 // if ( !ComputeParameters( testCoord, testPar , iFace))
3167 // RETURN_BAD_RESULT("TEST ComputeParameters() FAILED");
3168 // SHOWYXZ("OUT TEST PARAM" , testPar);
3173 //================================================================================
3175 * \brief Return pointer to column of nodes
3176 * \param node - bottom node from which the returned column goes up
3177 * \retval const TNodeColumn* - the found column
3179 //================================================================================
3181 const TNodeColumn* StdMeshers_PrismAsBlock::GetNodeColumn(const SMDS_MeshNode* node) const
3183 int sID = node->getshapeId();
3185 map<int, pair< TParam2ColumnMap*, bool > >::const_iterator col_frw =
3186 myShapeIndex2ColumnMap.find( sID );
3187 if ( col_frw != myShapeIndex2ColumnMap.end() ) {
3188 const TParam2ColumnMap* cols = col_frw->second.first;
3189 TParam2ColumnIt u_col = cols->begin();
3190 for ( ; u_col != cols->end(); ++u_col )
3191 if ( u_col->second[ 0 ] == node )
3192 return & u_col->second;
3197 //=======================================================================
3198 //function : GetLayersTransformation
3199 //purpose : Return transformations to get coordinates of nodes of each layer
3200 // by nodes of the bottom. Layer is a set of nodes at a certain step
3201 // from bottom to top.
3202 // Transformation to get top node from bottom ones is computed
3203 // only if the top FACE is not meshed.
3204 //=======================================================================
3206 bool StdMeshers_PrismAsBlock::GetLayersTransformation(vector<gp_Trsf> & trsf,
3207 const Prism_3D::TPrismTopo& prism) const
3209 const bool itTopMeshed = !SubMesh( ID_BOT_FACE )->IsEmpty();
3210 const int zSize = VerticalSize();
3211 if ( zSize < 3 && !itTopMeshed ) return true;
3212 trsf.resize( zSize - 1 );
3214 // Select some node columns by which we will define coordinate system of layers
3216 vector< const TNodeColumn* > columns;
3219 list< TopoDS_Edge >::const_iterator edgeIt = prism.myBottomEdges.begin();
3220 for ( int iE = 0; iE < prism.myNbEdgesInWires.front(); ++iE, ++edgeIt )
3222 if ( SMESH_Algo::isDegenerated( *edgeIt )) continue;
3223 const TParam2ColumnMap* u2colMap =
3224 GetParam2ColumnMap( MeshDS()->ShapeToIndex( *edgeIt ), isReverse );
3225 if ( !u2colMap ) return false;
3226 double f = u2colMap->begin()->first, l = u2colMap->rbegin()->first;
3227 //isReverse = ( edgeIt->Orientation() == TopAbs_REVERSED );
3228 //if ( isReverse ) swap ( f, l ); -- u2colMap takes orientation into account
3229 const int nbCol = 5;
3230 for ( int i = 0; i < nbCol; ++i )
3232 double u = f + i/double(nbCol) * ( l - f );
3233 const TNodeColumn* col = & getColumn( u2colMap, u )->second;
3234 if ( columns.empty() || col != columns.back() )
3235 columns.push_back( col );
3240 // Find tolerance to check transformations
3245 for ( int i = 0; i < columns.size(); ++i )
3246 bndBox.Add( gpXYZ( columns[i]->front() ));
3247 tol2 = bndBox.SquareExtent() * 1e-5;
3250 // Compute transformations
3253 gp_Trsf fromCsZ, toCs0;
3254 gp_Ax3 cs0 = getLayerCoordSys(0, columns, xCol );
3255 //double dist0 = cs0.Location().Distance( gpXYZ( (*columns[0])[0]));
3256 toCs0.SetTransformation( cs0 );
3257 for ( int z = 1; z < zSize; ++z )
3259 gp_Ax3 csZ = getLayerCoordSys(z, columns, xCol );
3260 //double distZ = csZ.Location().Distance( gpXYZ( (*columns[0])[z]));
3261 fromCsZ.SetTransformation( csZ );
3263 gp_Trsf& t = trsf[ z-1 ];
3264 t = fromCsZ * toCs0;
3265 //t.SetScaleFactor( distZ/dist0 ); - it does not work properly, wrong base point
3267 // check a transformation
3268 for ( int i = 0; i < columns.size(); ++i )
3270 gp_Pnt p0 = gpXYZ( (*columns[i])[0] );
3271 gp_Pnt pz = gpXYZ( (*columns[i])[z] );
3272 t.Transforms( p0.ChangeCoord() );
3273 if ( p0.SquareDistance( pz ) > tol2 )
3276 return ( z == zSize - 1 ); // OK if fails only botton->top trsf
3283 //================================================================================
3285 * \brief Check curve orientation of a bootom edge
3286 * \param meshDS - mesh DS
3287 * \param columnsMap - node columns map of side face
3288 * \param bottomEdge - the bootom edge
3289 * \param sideFaceID - side face in-block ID
3290 * \retval bool - true if orientation coinside with in-block forward orientation
3292 //================================================================================
3294 bool StdMeshers_PrismAsBlock::IsForwardEdge(SMESHDS_Mesh* meshDS,
3295 const TParam2ColumnMap& columnsMap,
3296 const TopoDS_Edge & bottomEdge,
3297 const int sideFaceID)
3299 bool isForward = false;
3300 if ( SMESH_MesherHelper::IsClosedEdge( bottomEdge ))
3302 isForward = ( bottomEdge.Orientation() == TopAbs_FORWARD );
3306 const TNodeColumn& firstCol = columnsMap.begin()->second;
3307 const SMDS_MeshNode* bottomNode = firstCol[0];
3308 TopoDS_Shape firstVertex = SMESH_MesherHelper::GetSubShapeByNode( bottomNode, meshDS );
3309 isForward = ( firstVertex.IsSame( TopExp::FirstVertex( bottomEdge, true )));
3311 // on 2 of 4 sides first vertex is end
3312 if ( sideFaceID == ID_Fx1z || sideFaceID == ID_F0yz )
3313 isForward = !isForward;
3317 //=======================================================================
3318 //function : faceGridToPythonDump
3319 //purpose : Prints a script creating a normal grid on the prism side
3320 //=======================================================================
3322 void StdMeshers_PrismAsBlock::faceGridToPythonDump(const SMESH_Block::TShapeID face,
3326 gp_XYZ pOnF[6] = { gp_XYZ(0,0,0), gp_XYZ(0,0,1),
3327 gp_XYZ(0,0,0), gp_XYZ(0,1,0),
3328 gp_XYZ(0,0,0), gp_XYZ(1,0,0) };
3330 cout << "mesh = smesh.Mesh( 'Face " << face << "')" << endl;
3331 SMESH_Block::TFace& f = myFace[ face - ID_FirstF ];
3332 gp_XYZ params = pOnF[ face - ID_FirstF ];
3333 //const int nb = 10; // nb face rows
3334 for ( int j = 0; j <= nb; ++j )
3336 params.SetCoord( f.GetVInd(), double( j )/ nb );
3337 for ( int i = 0; i <= nb; ++i )
3339 params.SetCoord( f.GetUInd(), double( i )/ nb );
3340 gp_XYZ p = f.Point( params );
3341 gp_XY uv = f.GetUV( params );
3342 cout << "mesh.AddNode( " << p.X() << ", " << p.Y() << ", " << p.Z() << " )"
3343 << " # " << 1 + i + j * ( nb + 1 )
3344 << " ( " << i << ", " << j << " ) "
3345 << " UV( " << uv.X() << ", " << uv.Y() << " )" << endl;
3346 ShellPoint( params, p2 );
3347 double dist = ( p2 - p ).Modulus();
3349 cout << "#### dist from ShellPoint " << dist
3350 << " (" << p2.X() << ", " << p2.Y() << ", " << p2.Z() << " ) " << endl;
3353 for ( int j = 0; j < nb; ++j )
3354 for ( int i = 0; i < nb; ++i )
3356 int n = 1 + i + j * ( nb + 1 );
3357 cout << "mesh.AddFace([ "
3358 << n << ", " << n+1 << ", "
3359 << n+nb+2 << ", " << n+nb+1 << "]) " << endl;
3365 //================================================================================
3367 * \brief Constructor
3368 * \param faceID - in-block ID
3369 * \param face - geom FACE
3370 * \param baseEdge - EDGE proreply oriented in the bottom EDGE !!!
3371 * \param columnsMap - map of node columns
3372 * \param first - first normalized param
3373 * \param last - last normalized param
3375 //================================================================================
3377 StdMeshers_PrismAsBlock::TSideFace::TSideFace(SMESH_Mesh& mesh,
3379 const Prism_3D::TQuadList& quadList,
3380 const TopoDS_Edge& baseEdge,
3381 TParam2ColumnMap* columnsMap,
3385 myParamToColumnMap( columnsMap ),
3388 myParams.resize( 1 );
3389 myParams[ 0 ] = make_pair( first, last );
3390 mySurface = PSurface( new BRepAdaptor_Surface( quadList.front()->face ));
3391 myBaseEdge = baseEdge;
3392 myIsForward = StdMeshers_PrismAsBlock::IsForwardEdge( myHelper.GetMeshDS(),
3393 *myParamToColumnMap,
3395 myHelper.SetSubShape( quadList.front()->face );
3397 if ( quadList.size() > 1 ) // side is vertically composite
3399 // fill myShapeID2Surf map to enable finding a right surface by any sub-shape ID
3401 SMESHDS_Mesh* meshDS = myHelper.GetMeshDS();
3403 TopTools_IndexedDataMapOfShapeListOfShape subToFaces;
3404 Prism_3D::TQuadList::const_iterator quad = quadList.begin();
3405 for ( ; quad != quadList.end(); ++quad )
3407 const TopoDS_Face& face = (*quad)->face;
3408 TopExp::MapShapesAndAncestors( face, TopAbs_VERTEX, TopAbs_FACE, subToFaces );
3409 TopExp::MapShapesAndAncestors( face, TopAbs_EDGE, TopAbs_FACE, subToFaces );
3410 myShapeID2Surf.insert( make_pair( meshDS->ShapeToIndex( face ),
3411 PSurface( new BRepAdaptor_Surface( face ))));
3413 for ( int i = 1; i <= subToFaces.Extent(); ++i )
3415 const TopoDS_Shape& sub = subToFaces.FindKey( i );
3416 TopTools_ListOfShape& faces = subToFaces( i );
3417 int subID = meshDS->ShapeToIndex( sub );
3418 int faceID = meshDS->ShapeToIndex( faces.First() );
3419 myShapeID2Surf.insert ( make_pair( subID, myShapeID2Surf[ faceID ]));
3424 //================================================================================
3426 * \brief Constructor of a complex side face
3428 //================================================================================
3430 StdMeshers_PrismAsBlock::TSideFace::
3431 TSideFace(SMESH_Mesh& mesh,
3432 const vector< TSideFace* >& components,
3433 const vector< pair< double, double> > & params)
3434 :myID( components[0] ? components[0]->myID : 0 ),
3435 myParamToColumnMap( 0 ),
3437 myIsForward( true ),
3438 myComponents( components ),
3441 if ( myID == ID_Fx1z || myID == ID_F0yz )
3443 // reverse components
3444 std::reverse( myComponents.begin(), myComponents.end() );
3445 std::reverse( myParams.begin(), myParams.end() );
3446 for ( size_t i = 0; i < myParams.size(); ++i )
3448 const double f = myParams[i].first;
3449 const double l = myParams[i].second;
3450 myParams[i] = make_pair( 1. - l, 1. - f );
3454 //================================================================================
3456 * \brief Copy constructor
3457 * \param other - other side
3459 //================================================================================
3461 StdMeshers_PrismAsBlock::TSideFace::TSideFace( const TSideFace& other ):
3462 myID ( other.myID ),
3463 myParamToColumnMap ( other.myParamToColumnMap ),
3464 mySurface ( other.mySurface ),
3465 myBaseEdge ( other.myBaseEdge ),
3466 myShapeID2Surf ( other.myShapeID2Surf ),
3467 myParams ( other.myParams ),
3468 myIsForward ( other.myIsForward ),
3469 myComponents ( other.myComponents.size() ),
3470 myHelper ( *other.myHelper.GetMesh() )
3472 for (int i = 0 ; i < myComponents.size(); ++i )
3473 myComponents[ i ] = new TSideFace( *other.myComponents[ i ]);
3476 //================================================================================
3478 * \brief Deletes myComponents
3480 //================================================================================
3482 StdMeshers_PrismAsBlock::TSideFace::~TSideFace()
3484 for (int i = 0 ; i < myComponents.size(); ++i )
3485 if ( myComponents[ i ] )
3486 delete myComponents[ i ];
3489 //================================================================================
3491 * \brief Return geometry of the vertical curve
3492 * \param isMax - true means curve located closer to (1,1,1) block point
3493 * \retval Adaptor3d_Curve* - curve adaptor
3495 //================================================================================
3497 Adaptor3d_Curve* StdMeshers_PrismAsBlock::TSideFace::VertiCurve(const bool isMax) const
3499 if ( !myComponents.empty() ) {
3501 return myComponents.back()->VertiCurve(isMax);
3503 return myComponents.front()->VertiCurve(isMax);
3505 double f = myParams[0].first, l = myParams[0].second;
3506 if ( !myIsForward ) std::swap( f, l );
3507 return new TVerticalEdgeAdaptor( myParamToColumnMap, isMax ? l : f );
3510 //================================================================================
3512 * \brief Return geometry of the top or bottom curve
3514 * \retval Adaptor3d_Curve* -
3516 //================================================================================
3518 Adaptor3d_Curve* StdMeshers_PrismAsBlock::TSideFace::HorizCurve(const bool isTop) const
3520 return new THorizontalEdgeAdaptor( this, isTop );
3523 //================================================================================
3525 * \brief Return pcurves
3526 * \param pcurv - array of 4 pcurves
3527 * \retval bool - is a success
3529 //================================================================================
3531 bool StdMeshers_PrismAsBlock::TSideFace::GetPCurves(Adaptor2d_Curve2d* pcurv[4]) const
3533 int iEdge[ 4 ] = { BOTTOM_EDGE, TOP_EDGE, V0_EDGE, V1_EDGE };
3535 for ( int i = 0 ; i < 4 ; ++i ) {
3536 Handle(Geom2d_Line) line;
3537 switch ( iEdge[ i ] ) {
3539 line = new Geom2d_Line( gp_Pnt2d( 0, 1 ), gp::DX2d() ); break;
3541 line = new Geom2d_Line( gp::Origin2d(), gp::DX2d() ); break;
3543 line = new Geom2d_Line( gp::Origin2d(), gp::DY2d() ); break;
3545 line = new Geom2d_Line( gp_Pnt2d( 1, 0 ), gp::DY2d() ); break;
3547 pcurv[ i ] = new Geom2dAdaptor_Curve( line, 0, 1 );
3552 //================================================================================
3554 * \brief Returns geometry of pcurve on a horizontal face
3555 * \param isTop - is top or bottom face
3556 * \param horFace - a horizontal face
3557 * \retval Adaptor2d_Curve2d* - curve adaptor
3559 //================================================================================
3562 StdMeshers_PrismAsBlock::TSideFace::HorizPCurve(const bool isTop,
3563 const TopoDS_Face& horFace) const
3565 return new TPCurveOnHorFaceAdaptor( this, isTop, horFace );
3568 //================================================================================
3570 * \brief Return a component corresponding to parameter
3571 * \param U - parameter along a horizontal size
3572 * \param localU - parameter along a horizontal size of a component
3573 * \retval TSideFace* - found component
3575 //================================================================================
3577 StdMeshers_PrismAsBlock::TSideFace*
3578 StdMeshers_PrismAsBlock::TSideFace::GetComponent(const double U,double & localU) const
3581 if ( myComponents.empty() )
3582 return const_cast<TSideFace*>( this );
3585 for ( i = 0; i < myComponents.size(); ++i )
3586 if ( U < myParams[ i ].second )
3588 if ( i >= myComponents.size() )
3589 i = myComponents.size() - 1;
3591 double f = myParams[ i ].first, l = myParams[ i ].second;
3592 localU = ( U - f ) / ( l - f );
3593 return myComponents[ i ];
3596 //================================================================================
3598 * \brief Find node columns for a parameter
3599 * \param U - parameter along a horizontal edge
3600 * \param col1 - the 1st found column
3601 * \param col2 - the 2nd found column
3602 * \retval r - normalized position of U between the found columns
3604 //================================================================================
3606 double StdMeshers_PrismAsBlock::TSideFace::GetColumns(const double U,
3607 TParam2ColumnIt & col1,
3608 TParam2ColumnIt & col2) const
3610 double u = U, r = 0;
3611 if ( !myComponents.empty() ) {
3612 TSideFace * comp = GetComponent(U,u);
3613 return comp->GetColumns( u, col1, col2 );
3618 double f = myParams[0].first, l = myParams[0].second;
3619 u = f + u * ( l - f );
3621 col1 = col2 = getColumn( myParamToColumnMap, u );
3622 if ( ++col2 == myParamToColumnMap->end() ) {
3627 double uf = col1->first;
3628 double ul = col2->first;
3629 r = ( u - uf ) / ( ul - uf );
3634 //================================================================================
3636 * \brief Return all nodes at a given height together with their normalized parameters
3637 * \param [in] Z - the height of interest
3638 * \param [out] nodes - map of parameter to node
3640 //================================================================================
3642 void StdMeshers_PrismAsBlock::
3643 TSideFace::GetNodesAtZ(const int Z,
3644 map<double, const SMDS_MeshNode* >& nodes ) const
3646 if ( !myComponents.empty() )
3649 for ( size_t i = 0; i < myComponents.size(); ++i )
3651 map<double, const SMDS_MeshNode* > nn;
3652 myComponents[i]->GetNodesAtZ( Z, nn );
3653 map<double, const SMDS_MeshNode* >::iterator u2n = nn.begin();
3654 if ( !nodes.empty() && nodes.rbegin()->second == u2n->second )
3656 const double uRange = myParams[i].second - myParams[i].first;
3657 for ( ; u2n != nn.end(); ++u2n )
3658 nodes.insert( nodes.end(), make_pair( u0 + uRange * u2n->first, u2n->second ));
3664 double f = myParams[0].first, l = myParams[0].second;
3667 const double uRange = l - f;
3668 if ( Abs( uRange ) < std::numeric_limits<double>::min() )
3670 TParam2ColumnIt u2col = getColumn( myParamToColumnMap, myParams[0].first + 1e-3 );
3671 for ( ; u2col != myParamToColumnMap->end(); ++u2col )
3672 if ( u2col->first > myParams[0].second + 1e-9 )
3675 nodes.insert( nodes.end(),
3676 make_pair( ( u2col->first - f ) / uRange, u2col->second[ Z ] ));
3680 //================================================================================
3682 * \brief Return coordinates by normalized params
3683 * \param U - horizontal param
3684 * \param V - vertical param
3685 * \retval gp_Pnt - result point
3687 //================================================================================
3689 gp_Pnt StdMeshers_PrismAsBlock::TSideFace::Value(const Standard_Real U,
3690 const Standard_Real V) const
3692 if ( !myComponents.empty() ) {
3694 TSideFace * comp = GetComponent(U,u);
3695 return comp->Value( u, V );
3698 TParam2ColumnIt u_col1, u_col2;
3699 double vR, hR = GetColumns( U, u_col1, u_col2 );
3701 const SMDS_MeshNode* nn[4];
3703 // BEGIN issue 0020680: Bad cell created by Radial prism in center of torus
3704 // Workaround for a wrongly located point returned by mySurface.Value() for
3705 // UV located near boundary of BSpline surface.
3706 // To bypass the problem, we take point from 3D curve of EDGE.
3707 // It solves pb of the bloc_fiss_new.py
3708 const double tol = 1e-3;
3709 if ( V < tol || V+tol >= 1. )
3711 nn[0] = V < tol ? u_col1->second.front() : u_col1->second.back();
3712 nn[2] = V < tol ? u_col2->second.front() : u_col2->second.back();
3720 TopoDS_Shape s = myHelper.GetSubShapeByNode( nn[0], myHelper.GetMeshDS() );
3721 if ( s.ShapeType() != TopAbs_EDGE )
3722 s = myHelper.GetSubShapeByNode( nn[2], myHelper.GetMeshDS() );
3723 if ( s.ShapeType() == TopAbs_EDGE )
3724 edge = TopoDS::Edge( s );
3726 if ( !edge.IsNull() )
3728 double u1 = myHelper.GetNodeU( edge, nn[0] );
3729 double u3 = myHelper.GetNodeU( edge, nn[2] );
3730 double u = u1 * ( 1 - hR ) + u3 * hR;
3731 TopLoc_Location loc; double f,l;
3732 Handle(Geom_Curve) curve = BRep_Tool::Curve( edge,loc,f,l );
3733 return curve->Value( u ).Transformed( loc );
3736 // END issue 0020680: Bad cell created by Radial prism in center of torus
3738 vR = getRAndNodes( & u_col1->second, V, nn[0], nn[1] );
3739 vR = getRAndNodes( & u_col2->second, V, nn[2], nn[3] );
3741 if ( !myShapeID2Surf.empty() ) // side is vertically composite
3743 // find a FACE on which the 4 nodes lie
3744 TSideFace* me = (TSideFace*) this;
3745 int notFaceID1 = 0, notFaceID2 = 0;
3746 for ( int i = 0; i < 4; ++i )
3747 if ( nn[i]->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE ) // node on FACE
3749 me->mySurface = me->myShapeID2Surf[ nn[i]->getshapeId() ];
3753 else if ( notFaceID1 == 0 ) // node on EDGE or VERTEX
3755 me->mySurface = me->myShapeID2Surf[ nn[i]->getshapeId() ];
3756 notFaceID1 = nn[i]->getshapeId();
3758 else if ( notFaceID1 != nn[i]->getshapeId() ) // node on other EDGE or VERTEX
3760 if ( mySurface != me->myShapeID2Surf[ nn[i]->getshapeId() ])
3761 notFaceID2 = nn[i]->getshapeId();
3763 if ( notFaceID2 ) // no nodes of FACE and nodes are on different FACEs
3765 SMESHDS_Mesh* meshDS = myHelper.GetMeshDS();
3766 TopoDS_Shape face = myHelper.GetCommonAncestor( meshDS->IndexToShape( notFaceID1 ),
3767 meshDS->IndexToShape( notFaceID2 ),
3768 *myHelper.GetMesh(),
3770 if ( face.IsNull() )
3771 throw SALOME_Exception("StdMeshers_PrismAsBlock::TSideFace::Value() face.IsNull()");
3772 int faceID = meshDS->ShapeToIndex( face );
3773 me->mySurface = me->myShapeID2Surf[ faceID ];
3775 throw SALOME_Exception("StdMeshers_PrismAsBlock::TSideFace::Value() !mySurface");
3778 ((TSideFace*) this)->myHelper.SetSubShape( mySurface->Face() );
3780 gp_XY uv1 = myHelper.GetNodeUV( mySurface->Face(), nn[0], nn[2]);
3781 gp_XY uv2 = myHelper.GetNodeUV( mySurface->Face(), nn[1], nn[3]);
3782 gp_XY uv12 = uv1 * ( 1 - vR ) + uv2 * vR;
3784 gp_XY uv3 = myHelper.GetNodeUV( mySurface->Face(), nn[2], nn[0]);
3785 gp_XY uv4 = myHelper.GetNodeUV( mySurface->Face(), nn[3], nn[1]);
3786 gp_XY uv34 = uv3 * ( 1 - vR ) + uv4 * vR;
3788 gp_XY uv = uv12 * ( 1 - hR ) + uv34 * hR;
3790 gp_Pnt p = mySurface->Value( uv.X(), uv.Y() );
3795 //================================================================================
3797 * \brief Return boundary edge
3798 * \param edge - edge index
3799 * \retval TopoDS_Edge - found edge
3801 //================================================================================
3803 TopoDS_Edge StdMeshers_PrismAsBlock::TSideFace::GetEdge(const int iEdge) const
3805 if ( !myComponents.empty() ) {
3807 case V0_EDGE : return myComponents.front()->GetEdge( iEdge );
3808 case V1_EDGE : return myComponents.back() ->GetEdge( iEdge );
3809 default: return TopoDS_Edge();
3813 const SMDS_MeshNode* node = 0;
3814 SMESHDS_Mesh * meshDS = myHelper.GetMesh()->GetMeshDS();
3815 TNodeColumn* column;
3820 column = & (( ++myParamToColumnMap->begin())->second );
3821 node = ( iEdge == TOP_EDGE ) ? column->back() : column->front();
3822 edge = myHelper.GetSubShapeByNode ( node, meshDS );
3823 if ( edge.ShapeType() == TopAbs_VERTEX ) {
3824 column = & ( myParamToColumnMap->begin()->second );
3825 node = ( iEdge == TOP_EDGE ) ? column->back() : column->front();
3830 bool back = ( iEdge == V1_EDGE );
3831 if ( !myIsForward ) back = !back;
3833 column = & ( myParamToColumnMap->rbegin()->second );
3835 column = & ( myParamToColumnMap->begin()->second );
3836 if ( column->size() > 0 )
3837 edge = myHelper.GetSubShapeByNode( (*column)[ 1 ], meshDS );
3838 if ( edge.IsNull() || edge.ShapeType() == TopAbs_VERTEX )
3839 node = column->front();
3844 if ( !edge.IsNull() && edge.ShapeType() == TopAbs_EDGE )
3845 return TopoDS::Edge( edge );
3847 // find edge by 2 vertices
3848 TopoDS_Shape V1 = edge;
3849 TopoDS_Shape V2 = myHelper.GetSubShapeByNode( node, meshDS );
3850 if ( !V2.IsNull() && V2.ShapeType() == TopAbs_VERTEX && !V2.IsSame( V1 ))
3852 TopoDS_Shape ancestor = myHelper.GetCommonAncestor( V1, V2, *myHelper.GetMesh(), TopAbs_EDGE);
3853 if ( !ancestor.IsNull() )
3854 return TopoDS::Edge( ancestor );
3856 return TopoDS_Edge();
3859 //================================================================================
3861 * \brief Fill block sub-shapes
3862 * \param shapeMap - map to fill in
3863 * \retval int - nb inserted sub-shapes
3865 //================================================================================
3867 int StdMeshers_PrismAsBlock::TSideFace::InsertSubShapes(TBlockShapes& shapeMap) const
3872 vector< int > edgeIdVec;
3873 SMESH_Block::GetFaceEdgesIDs( myID, edgeIdVec );
3875 for ( int i = BOTTOM_EDGE; i <=V1_EDGE ; ++i ) {
3876 TopoDS_Edge e = GetEdge( i );
3877 if ( !e.IsNull() ) {
3878 nbInserted += SMESH_Block::Insert( e, edgeIdVec[ i ], shapeMap);
3882 // Insert corner vertices
3884 TParam2ColumnIt col1, col2 ;
3885 vector< int > vertIdVec;
3888 SMESH_Block::GetEdgeVertexIDs( edgeIdVec[ V0_EDGE ], vertIdVec);
3889 GetColumns(0, col1, col2 );
3890 const SMDS_MeshNode* node0 = col1->second.front();
3891 const SMDS_MeshNode* node1 = col1->second.back();
3892 TopoDS_Shape v0 = myHelper.GetSubShapeByNode( node0, myHelper.GetMeshDS());
3893 TopoDS_Shape v1 = myHelper.GetSubShapeByNode( node1, myHelper.GetMeshDS());
3894 if ( v0.ShapeType() == TopAbs_VERTEX ) {
3895 nbInserted += SMESH_Block::Insert( v0, vertIdVec[ 0 ], shapeMap);
3897 if ( v1.ShapeType() == TopAbs_VERTEX ) {
3898 nbInserted += SMESH_Block::Insert( v1, vertIdVec[ 1 ], shapeMap);
3902 SMESH_Block::GetEdgeVertexIDs( edgeIdVec[ V1_EDGE ], vertIdVec);
3903 GetColumns(1, col1, col2 );
3904 node0 = col2->second.front();
3905 node1 = col2->second.back();
3906 v0 = myHelper.GetSubShapeByNode( node0, myHelper.GetMeshDS());
3907 v1 = myHelper.GetSubShapeByNode( node1, myHelper.GetMeshDS());
3908 if ( v0.ShapeType() == TopAbs_VERTEX ) {
3909 nbInserted += SMESH_Block::Insert( v0, vertIdVec[ 0 ], shapeMap);
3911 if ( v1.ShapeType() == TopAbs_VERTEX ) {
3912 nbInserted += SMESH_Block::Insert( v1, vertIdVec[ 1 ], shapeMap);
3915 // TopoDS_Vertex V0, V1, Vcom;
3916 // TopExp::Vertices( myBaseEdge, V0, V1, true );
3917 // if ( !myIsForward ) std::swap( V0, V1 );
3919 // // bottom vertex IDs
3920 // SMESH_Block::GetEdgeVertexIDs( edgeIdVec[ _u0 ], vertIdVec);
3921 // SMESH_Block::Insert( V0, vertIdVec[ 0 ], shapeMap);
3922 // SMESH_Block::Insert( V1, vertIdVec[ 1 ], shapeMap);
3924 // TopoDS_Edge sideEdge = GetEdge( V0_EDGE );
3925 // if ( sideEdge.IsNull() || !TopExp::CommonVertex( botEdge, sideEdge, Vcom ))
3928 // // insert one side edge
3930 // if ( Vcom.IsSame( V0 )) edgeID = edgeIdVec[ _v0 ];
3931 // else edgeID = edgeIdVec[ _v1 ];
3932 // SMESH_Block::Insert( sideEdge, edgeID, shapeMap);
3934 // // top vertex of the side edge
3935 // SMESH_Block::GetEdgeVertexIDs( edgeID, vertIdVec);
3936 // TopoDS_Vertex Vtop = TopExp::FirstVertex( sideEdge );
3937 // if ( Vcom.IsSame( Vtop ))
3938 // Vtop = TopExp::LastVertex( sideEdge );
3939 // SMESH_Block::Insert( Vtop, vertIdVec[ 1 ], shapeMap);
3941 // // other side edge
3942 // sideEdge = GetEdge( V1_EDGE );
3943 // if ( sideEdge.IsNull() )
3945 // if ( edgeID = edgeIdVec[ _v1 ]) edgeID = edgeIdVec[ _v0 ];
3946 // else edgeID = edgeIdVec[ _v1 ];
3947 // SMESH_Block::Insert( sideEdge, edgeID, shapeMap);
3950 // TopoDS_Edge topEdge = GetEdge( TOP_EDGE );
3951 // SMESH_Block::Insert( topEdge, edgeIdVec[ _u1 ], shapeMap);
3953 // // top vertex of the other side edge
3954 // if ( !TopExp::CommonVertex( topEdge, sideEdge, Vcom ))
3956 // SMESH_Block::GetEdgeVertexIDs( edgeID, vertIdVec );
3957 // SMESH_Block::Insert( Vcom, vertIdVec[ 1 ], shapeMap);
3962 //================================================================================
3964 * \brief Dump ids of nodes of sides
3966 //================================================================================
3968 void StdMeshers_PrismAsBlock::TSideFace::dumpNodes(int nbNodes) const
3971 cout << endl << "NODES OF FACE "; SMESH_Block::DumpShapeID( myID, cout ) << endl;
3972 THorizontalEdgeAdaptor* hSize0 = (THorizontalEdgeAdaptor*) HorizCurve(0);
3973 cout << "Horiz side 0: "; hSize0->dumpNodes(nbNodes); cout << endl;
3974 THorizontalEdgeAdaptor* hSize1 = (THorizontalEdgeAdaptor*) HorizCurve(1);
3975 cout << "Horiz side 1: "; hSize1->dumpNodes(nbNodes); cout << endl;
3976 TVerticalEdgeAdaptor* vSide0 = (TVerticalEdgeAdaptor*) VertiCurve(0);
3977 cout << "Verti side 0: "; vSide0->dumpNodes(nbNodes); cout << endl;
3978 TVerticalEdgeAdaptor* vSide1 = (TVerticalEdgeAdaptor*) VertiCurve(1);
3979 cout << "Verti side 1: "; vSide1->dumpNodes(nbNodes); cout << endl;
3980 delete hSize0; delete hSize1; delete vSide0; delete vSide1;
3984 //================================================================================
3986 * \brief Creates TVerticalEdgeAdaptor
3987 * \param columnsMap - node column map
3988 * \param parameter - normalized parameter
3990 //================================================================================
3992 StdMeshers_PrismAsBlock::TVerticalEdgeAdaptor::
3993 TVerticalEdgeAdaptor( const TParam2ColumnMap* columnsMap, const double parameter)
3995 myNodeColumn = & getColumn( columnsMap, parameter )->second;
3998 //================================================================================
4000 * \brief Return coordinates for the given normalized parameter
4001 * \param U - normalized parameter
4002 * \retval gp_Pnt - coordinates
4004 //================================================================================
4006 gp_Pnt StdMeshers_PrismAsBlock::TVerticalEdgeAdaptor::Value(const Standard_Real U) const
4008 const SMDS_MeshNode* n1;
4009 const SMDS_MeshNode* n2;
4010 double r = getRAndNodes( myNodeColumn, U, n1, n2 );
4011 return gpXYZ(n1) * ( 1 - r ) + gpXYZ(n2) * r;
4014 //================================================================================
4016 * \brief Dump ids of nodes
4018 //================================================================================
4020 void StdMeshers_PrismAsBlock::TVerticalEdgeAdaptor::dumpNodes(int nbNodes) const
4023 for ( int i = 0; i < nbNodes && i < myNodeColumn->size(); ++i )
4024 cout << (*myNodeColumn)[i]->GetID() << " ";
4025 if ( nbNodes < myNodeColumn->size() )
4026 cout << myNodeColumn->back()->GetID();
4030 //================================================================================
4032 * \brief Return coordinates for the given normalized parameter
4033 * \param U - normalized parameter
4034 * \retval gp_Pnt - coordinates
4036 //================================================================================
4038 gp_Pnt StdMeshers_PrismAsBlock::THorizontalEdgeAdaptor::Value(const Standard_Real U) const
4040 return mySide->TSideFace::Value( U, myV );
4043 //================================================================================
4045 * \brief Dump ids of <nbNodes> first nodes and the last one
4047 //================================================================================
4049 void StdMeshers_PrismAsBlock::THorizontalEdgeAdaptor::dumpNodes(int nbNodes) const
4052 // Not bedugged code. Last node is sometimes incorrect
4053 const TSideFace* side = mySide;
4055 if ( mySide->IsComplex() )
4056 side = mySide->GetComponent(0,u);
4058 TParam2ColumnIt col, col2;
4059 TParam2ColumnMap* u2cols = side->GetColumns();
4060 side->GetColumns( u , col, col2 );
4062 int j, i = myV ? mySide->ColumnHeight()-1 : 0;
4064 const SMDS_MeshNode* n = 0;
4065 const SMDS_MeshNode* lastN
4066 = side->IsForward() ? u2cols->rbegin()->second[ i ] : u2cols->begin()->second[ i ];
4067 for ( j = 0; j < nbNodes && n != lastN; ++j )
4069 n = col->second[ i ];
4070 cout << n->GetID() << " ";
4071 if ( side->IsForward() )
4079 if ( mySide->IsComplex() )
4080 side = mySide->GetComponent(1,u);
4082 side->GetColumns( u , col, col2 );
4083 if ( n != col->second[ i ] )
4084 cout << col->second[ i ]->GetID();
4088 //================================================================================
4090 * \brief Costructor of TPCurveOnHorFaceAdaptor fills its map of
4091 * normalized parameter to node UV on a horizontal face
4092 * \param [in] sideFace - lateral prism side
4093 * \param [in] isTop - is \a horFace top or bottom of the prism
4094 * \param [in] horFace - top or bottom face of the prism
4096 //================================================================================
4098 StdMeshers_PrismAsBlock::
4099 TPCurveOnHorFaceAdaptor::TPCurveOnHorFaceAdaptor( const TSideFace* sideFace,
4101 const TopoDS_Face& horFace)
4103 if ( sideFace && !horFace.IsNull() )
4105 //cout << "\n\t FACE " << sideFace->FaceID() << endl;
4106 const int Z = isTop ? sideFace->ColumnHeight() - 1 : 0;
4107 map<double, const SMDS_MeshNode* > u2nodes;
4108 sideFace->GetNodesAtZ( Z, u2nodes );
4109 if ( u2nodes.empty() )
4112 SMESH_MesherHelper helper( *sideFace->GetMesh() );
4113 helper.SetSubShape( horFace );
4118 Handle(Geom2d_Curve) C2d;
4120 const double tol = 10 * helper.MaxTolerance( horFace );
4121 const SMDS_MeshNode* prevNode = u2nodes.rbegin()->second;
4123 map<double, const SMDS_MeshNode* >::iterator u2n = u2nodes.begin();
4124 for ( ; u2n != u2nodes.end(); ++u2n )
4126 const SMDS_MeshNode* n = u2n->second;
4128 if ( n->GetPosition()->GetTypeOfPosition() == SMDS_TOP_EDGE )
4130 if ( n->getshapeId() != edgeID )
4133 edgeID = n->getshapeId();
4134 TopoDS_Shape S = helper.GetSubShapeByNode( n, helper.GetMeshDS() );
4135 if ( !S.IsNull() && S.ShapeType() == TopAbs_EDGE )
4137 C2d = BRep_Tool::CurveOnSurface( TopoDS::Edge( S ), horFace, f,l );
4140 if ( !C2d.IsNull() )
4142 double u = static_cast< const SMDS_EdgePosition* >( n->GetPosition() )->GetUParameter();
4143 if ( f <= u && u <= l )
4145 uv = C2d->Value( u ).XY();
4146 okUV = helper.CheckNodeUV( horFace, n, uv, tol );
4151 uv = helper.GetNodeUV( horFace, n, prevNode, &okUV );
4153 myUVmap.insert( myUVmap.end(), make_pair( u2n->first, uv ));
4154 // cout << n->getshapeId() << " N " << n->GetID()
4155 // << " \t" << uv.X() << ", " << uv.Y() << " \t" << u2n->first << endl;
4162 //================================================================================
4164 * \brief Return UV on pcurve for the given normalized parameter
4165 * \param U - normalized parameter
4166 * \retval gp_Pnt - coordinates
4168 //================================================================================
4170 gp_Pnt2d StdMeshers_PrismAsBlock::TPCurveOnHorFaceAdaptor::Value(const Standard_Real U) const
4172 map< double, gp_XY >::const_iterator i1 = myUVmap.upper_bound( U );
4174 if ( i1 == myUVmap.end() )
4175 return myUVmap.empty() ? gp_XY(0,0) : myUVmap.rbegin()->second;
4177 if ( i1 == myUVmap.begin() )
4178 return (*i1).second;
4180 map< double, gp_XY >::const_iterator i2 = i1--;
4182 double r = ( U - i1->first ) / ( i2->first - i1->first );
4183 return i1->second * ( 1 - r ) + i2->second * r;