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 for ( size_t i = 0; i < quad->side.size(); ++i )
217 StdMeshers_FaceSidePtr quadSide = quad->side[i];
218 for ( int iE = 0; iE < quadSide->NbEdges(); ++iE )
219 if ( botE.IsSame( quadSide->Edge( iE )))
221 if ( quadSide->NbEdges() > 1 )
224 i = quad->side.size(); // to quit from the outer loop
228 if ( edgeIndex != QUAD_BOTTOM_SIDE )
229 quad->shift( quad->side.size() - edgeIndex, /*keepUnitOri=*/false );
231 quad->face = TopoDS::Face( face );
236 //================================================================================
238 * \brief Return iterator pointing to node column for the given parameter
239 * \param columnsMap - node column map
240 * \param parameter - parameter
241 * \retval TParam2ColumnMap::iterator - result
243 * it returns closest left column
245 //================================================================================
247 TParam2ColumnIt getColumn( const TParam2ColumnMap* columnsMap,
248 const double parameter )
250 TParam2ColumnIt u_col = columnsMap->upper_bound( parameter );
251 if ( u_col != columnsMap->begin() )
253 return u_col; // return left column
256 //================================================================================
258 * \brief Return nodes around given parameter and a ratio
259 * \param column - node column
260 * \param param - parameter
261 * \param node1 - lower node
262 * \param node2 - upper node
263 * \retval double - ratio
265 //================================================================================
267 double getRAndNodes( const TNodeColumn* column,
269 const SMDS_MeshNode* & node1,
270 const SMDS_MeshNode* & node2)
272 if ( param >= 1.0 || column->size() == 1) {
273 node1 = node2 = column->back();
277 int i = int( param * ( column->size() - 1 ));
278 double u0 = double( i )/ double( column->size() - 1 );
279 double r = ( param - u0 ) * ( column->size() - 1 );
281 node1 = (*column)[ i ];
282 node2 = (*column)[ i + 1];
286 //================================================================================
288 * \brief Compute boundary parameters of face parts
289 * \param nbParts - nb of parts to split columns into
290 * \param columnsMap - node columns of the face to split
291 * \param params - computed parameters
293 //================================================================================
295 void splitParams( const int nbParts,
296 const TParam2ColumnMap* columnsMap,
297 vector< double > & params)
300 params.reserve( nbParts + 1 );
301 TParam2ColumnIt last_par_col = --columnsMap->end();
302 double par = columnsMap->begin()->first; // 0.
303 double parLast = last_par_col->first;
304 params.push_back( par );
305 for ( int i = 0; i < nbParts - 1; ++ i )
307 double partSize = ( parLast - par ) / double ( nbParts - i );
308 TParam2ColumnIt par_col = getColumn( columnsMap, par + partSize );
309 if ( par_col->first == par ) {
311 if ( par_col == last_par_col ) {
312 while ( i < nbParts - 1 )
313 params.push_back( par + partSize * i++ );
317 par = par_col->first;
318 params.push_back( par );
320 params.push_back( parLast ); // 1.
323 //================================================================================
325 * \brief Return coordinate system for z-th layer of nodes
327 //================================================================================
329 gp_Ax2 getLayerCoordSys(const int z,
330 const vector< const TNodeColumn* >& columns,
333 // gravity center of a layer
336 for ( int i = 0; i < columns.size(); ++i )
338 O += gpXYZ( (*columns[ i ])[ z ]);
339 if ( vertexCol < 0 &&
340 columns[ i ]->front()->GetPosition()->GetTypeOfPosition() == SMDS_TOP_VERTEX )
347 int iPrev = columns.size()-1;
348 for ( int i = 0; i < columns.size(); ++i )
350 gp_Vec v1( O, gpXYZ( (*columns[ iPrev ])[ z ]));
351 gp_Vec v2( O, gpXYZ( (*columns[ i ] )[ z ]));
356 if ( vertexCol >= 0 )
358 O = gpXYZ( (*columns[ vertexCol ])[ z ]);
360 if ( xColumn < 0 || xColumn >= columns.size() )
362 // select a column for X dir
364 for ( int i = 0; i < columns.size(); ++i )
366 double dist = ( O - gpXYZ((*columns[ i ])[ z ])).SquareModulus();
367 if ( dist > maxDist )
376 gp_Vec X( O, gpXYZ( (*columns[ xColumn ])[ z ]));
378 return gp_Ax2( O, Z, X);
381 //================================================================================
383 * \brief Removes submeshes that are or can be meshed with regular grid from given list
384 * \retval int - nb of removed submeshes
386 //================================================================================
388 int removeQuasiQuads(list< SMESH_subMesh* >& notQuadSubMesh,
389 SMESH_MesherHelper* helper,
390 StdMeshers_Quadrangle_2D* quadAlgo)
393 //SMESHDS_Mesh* mesh = notQuadSubMesh.front()->GetFather()->GetMeshDS();
394 list< SMESH_subMesh* >::iterator smIt = notQuadSubMesh.begin();
395 while ( smIt != notQuadSubMesh.end() )
397 SMESH_subMesh* faceSm = *smIt;
398 SMESHDS_SubMesh* faceSmDS = faceSm->GetSubMeshDS();
399 int nbQuads = faceSmDS ? faceSmDS->NbElements() : 0;
402 toRemove = helper->IsStructured( faceSm );
404 toRemove = quadAlgo->CheckNbEdges( *helper->GetMesh(),
405 faceSm->GetSubShape() );
406 nbRemoved += toRemove;
408 smIt = notQuadSubMesh.erase( smIt );
416 //================================================================================
418 * \brief Return and angle between two EDGEs
419 * \return double - the angle normalized so that
426 //================================================================================
428 double normAngle(const TopoDS_Edge & E1, const TopoDS_Edge & E2, const TopoDS_Face & F)
430 return SMESH_MesherHelper::GetAngle( E1, E2, F ) / ( 0.5 * M_PI );
433 //================================================================================
435 * Consider continuous straight EDGES as one side - mark them to unite
437 //================================================================================
439 int countNbSides( const Prism_3D::TPrismTopo & thePrism,
440 vector<int> & nbUnitePerEdge,
441 vector< double > & edgeLength)
443 int nbEdges = thePrism.myNbEdgesInWires.front(); // nb outer edges
444 int nbSides = nbEdges;
447 list< TopoDS_Edge >::const_iterator edgeIt = thePrism.myBottomEdges.begin();
448 std::advance( edgeIt, nbEdges-1 );
449 TopoDS_Edge prevE = *edgeIt;
450 // bool isPrevStraight = SMESH_Algo::IsStraight( prevE );
451 int iPrev = nbEdges - 1;
453 int iUnite = -1; // the first of united EDGEs
455 // analyse angles between EDGEs
457 vector< bool > isCorner( nbEdges );
458 edgeIt = thePrism.myBottomEdges.begin();
459 for ( int iE = 0; iE < nbEdges; ++iE, ++edgeIt )
461 const TopoDS_Edge& curE = *edgeIt;
462 edgeLength[ iE ] = SMESH_Algo::EdgeLength( curE );
464 // double normAngle = normAngle( prevE, curE, thePrism.myBottom );
465 // isCorner[ iE ] = false;
466 // if ( normAngle < 2.0 )
468 // if ( normAngle < 0.001 ) // straight or obtuse angle
470 // // unite EDGEs in order not to put a corner of the unit quadrangle at this VERTEX
473 // nbUnitePerEdge[ iUnite ]++;
474 // nbUnitePerEdge[ iE ] = -1;
479 // isCorner[ iE ] = true;
489 // define which of corners to put on a side of the unit quadrangle
491 // edgeIt = thePrism.myBottomEdges.begin();
492 // for ( int iE = 0; iE < nbEdges; ++iE, ++edgeIt )
494 // const TopoDS_Edge& curE = *edgeIt;
495 // edgeLength[ iE ] = SMESH_Algo::EdgeLength( curE );
497 // const bool isCurStraight = SMESH_Algo::IsStraight( curE );
498 // if ( isPrevStraight && isCurStraight && SMESH_Algo::IsContinuous( prevE, curE ))
502 // nbUnitePerEdge[ iUnite ]++;
503 // nbUnitePerEdge[ iE ] = -1;
511 // isPrevStraight = isCurStraight;
518 void pointsToPython(const std::vector<gp_XYZ>& p)
521 for ( int i = SMESH_Block::ID_V000; i < p.size(); ++i )
523 cout << "mesh.AddNode( " << p[i].X() << ", "<< p[i].Y() << ", "<< p[i].Z() << ") # " << i <<" " ;
524 SMESH_Block::DumpShapeID( i, cout ) << endl;
530 //=======================================================================
531 //function : StdMeshers_Prism_3D
533 //=======================================================================
535 StdMeshers_Prism_3D::StdMeshers_Prism_3D(int hypId, int studyId, SMESH_Gen* gen)
536 :SMESH_3D_Algo(hypId, studyId, gen)
539 _shapeType = (1 << TopAbs_SOLID); // 1 bit per shape type
540 _onlyUnaryInput = false; // accept all SOLIDs at once
541 _requireDiscreteBoundary = false; // mesh FACEs and EDGEs by myself
542 _supportSubmeshes = true; // "source" FACE must be meshed by other algo
543 _neededLowerHyps[ 1 ] = true; // suppress warning on hiding a global 1D algo
544 _neededLowerHyps[ 2 ] = true; // suppress warning on hiding a global 2D algo
546 //myProjectTriangles = false;
547 mySetErrorToSM = true; // to pass an error to a sub-mesh of a current solid or not
550 //================================================================================
554 //================================================================================
556 StdMeshers_Prism_3D::~StdMeshers_Prism_3D()
559 //=======================================================================
560 //function : CheckHypothesis
562 //=======================================================================
564 bool StdMeshers_Prism_3D::CheckHypothesis(SMESH_Mesh& aMesh,
565 const TopoDS_Shape& aShape,
566 SMESH_Hypothesis::Hypothesis_Status& aStatus)
568 // Check shape geometry
570 aStatus = SMESH_Hypothesis::HYP_BAD_GEOMETRY;
572 // find not quadrangle faces
573 list< TopoDS_Shape > notQuadFaces;
574 int nbEdge, nbWire, nbFace = 0;
575 TopExp_Explorer exp( aShape, TopAbs_FACE );
576 for ( ; exp.More(); exp.Next() ) {
578 const TopoDS_Shape& face = exp.Current();
579 nbEdge = TAssocTool::Count( face, TopAbs_EDGE, 0 );
580 nbWire = TAssocTool::Count( face, TopAbs_WIRE, 0 );
581 if ( nbEdge!= 4 || nbWire!= 1 ) {
582 if ( !notQuadFaces.empty() ) {
583 if ( TAssocTool::Count( notQuadFaces.back(), TopAbs_EDGE, 0 ) != nbEdge ||
584 TAssocTool::Count( notQuadFaces.back(), TopAbs_WIRE, 0 ) != nbWire )
585 RETURN_BAD_RESULT("Different not quad faces");
587 notQuadFaces.push_back( face );
590 if ( !notQuadFaces.empty() )
592 if ( notQuadFaces.size() != 2 )
593 RETURN_BAD_RESULT("Bad nb not quad faces: " << notQuadFaces.size());
595 // check total nb faces
596 nbEdge = TAssocTool::Count( notQuadFaces.back(), TopAbs_EDGE, 0 );
597 if ( nbFace != nbEdge + 2 )
598 RETURN_BAD_RESULT("Bad nb of faces: " << nbFace << " but must be " << nbEdge + 2);
602 aStatus = SMESH_Hypothesis::HYP_OK;
606 //=======================================================================
608 //purpose : Compute mesh on a COMPOUND of SOLIDs
609 //=======================================================================
611 bool StdMeshers_Prism_3D::Compute(SMESH_Mesh& theMesh, const TopoDS_Shape& theShape)
613 SMESH_MesherHelper helper( theMesh );
616 int nbSolids = helper.Count( theShape, TopAbs_SOLID, /*skipSame=*/false );
620 TopTools_IndexedDataMapOfShapeListOfShape faceToSolids;
621 TopExp::MapShapesAndAncestors( theShape, TopAbs_FACE, TopAbs_SOLID, faceToSolids );
623 // look for meshed FACEs ("source" FACEs) that must be prism bottoms
624 list< TopoDS_Face > meshedFaces, notQuadMeshedFaces, notQuadFaces;
625 const bool meshHasQuads = ( theMesh.NbQuadrangles() > 0 );
626 //StdMeshers_Quadrangle_2D* quadAlgo = TQuadrangleAlgo::instance( this );
627 for ( int iF = 1; iF <= faceToSolids.Extent(); ++iF )
629 const TopoDS_Face& face = TopoDS::Face( faceToSolids.FindKey( iF ));
630 SMESH_subMesh* faceSM = theMesh.GetSubMesh( face );
631 if ( !faceSM->IsEmpty() )
633 if ( !meshHasQuads ||
634 !helper.IsSameElemGeometry( faceSM->GetSubMeshDS(), SMDSGeom_QUADRANGLE ) ||
635 !helper.IsStructured( faceSM )
637 notQuadMeshedFaces.push_front( face );
638 else if ( myHelper->Count( face, TopAbs_EDGE, /*ignoreSame=*/false ) != 4 )
639 meshedFaces.push_front( face );
641 meshedFaces.push_back( face );
643 // not add not quadrilateral FACE as we can't compute it
644 // else if ( !quadAlgo->CheckNbEdges( theMesh, face ))
645 // // not add not quadrilateral FACE as it can be a prism side
646 // // else if ( myHelper->Count( face, TopAbs_EDGE, /*ignoreSame=*/false ) != 4 )
648 // notQuadFaces.push_back( face );
651 // notQuadFaces are of medium priority, put them before ordinary meshed faces
652 meshedFaces.splice( meshedFaces.begin(), notQuadFaces );
653 // notQuadMeshedFaces are of highest priority, put them before notQuadFaces
654 meshedFaces.splice( meshedFaces.begin(), notQuadMeshedFaces );
656 Prism_3D::TPrismTopo prism;
660 if ( !meshedFaces.empty() )
661 prism.myBottom = meshedFaces.front();
662 return ( initPrism( prism, TopExp_Explorer( theShape, TopAbs_SOLID ).Current() ) &&
666 // find propagation chains from already computed EDGEs
667 vector< TopoDS_Edge > computedEdges;
668 getPrecomputedEdges( helper, theShape, computedEdges );
669 myPropagChains = new TopTools_IndexedMapOfShape[ computedEdges.size() + 1 ];
670 SMESHUtils::ArrayDeleter< TopTools_IndexedMapOfShape > pcDel( myPropagChains );
671 for ( size_t i = 0, nb = 0; i < computedEdges.size(); ++i )
673 StdMeshers_ProjectionUtils::GetPropagationEdge( &theMesh, TopoDS_Edge(),
674 computedEdges[i], myPropagChains + nb );
675 if ( myPropagChains[ nb ].Extent() < 2 ) // an empty map is a termination sign
676 myPropagChains[ nb ].Clear();
681 TopTools_MapOfShape meshedSolids;
682 list< Prism_3D::TPrismTopo > meshedPrism;
683 TopTools_ListIteratorOfListOfShape solidIt;
685 while ( meshedSolids.Extent() < nbSolids )
687 if ( _computeCanceled )
688 return toSM( error( SMESH_ComputeError::New(COMPERR_CANCELED)));
690 // compute prisms having avident computed source FACE
691 while ( !meshedFaces.empty() )
693 TopoDS_Face face = meshedFaces.front();
694 meshedFaces.pop_front();
695 TopTools_ListOfShape& solidList = faceToSolids.ChangeFromKey( face );
696 while ( !solidList.IsEmpty() )
698 TopoDS_Shape solid = solidList.First();
699 solidList.RemoveFirst();
700 if ( meshedSolids.Add( solid ))
703 prism.myBottom = face;
704 if ( !initPrism( prism, solid ) ||
708 SMESHDS_SubMesh* smDS = theMesh.GetMeshDS()->MeshElements( prism.myTop );
709 if ( !myHelper->IsSameElemGeometry( smDS, SMDSGeom_QUADRANGLE ))
711 meshedFaces.push_front( prism.myTop );
713 meshedPrism.push_back( prism );
717 if ( meshedSolids.Extent() == nbSolids )
720 // below in the loop we try to find source FACEs somehow
722 // project mesh from source FACEs of computed prisms to
723 // prisms sharing wall FACEs
724 list< Prism_3D::TPrismTopo >::iterator prismIt = meshedPrism.begin();
725 for ( ; prismIt != meshedPrism.end(); ++prismIt )
727 for ( size_t iW = 0; iW < prismIt->myWallQuads.size(); ++iW )
729 Prism_3D::TQuadList::iterator wQuad = prismIt->myWallQuads[iW].begin();
730 for ( ; wQuad != prismIt->myWallQuads[iW].end(); ++ wQuad )
732 const TopoDS_Face& wFace = (*wQuad)->face;
733 TopTools_ListOfShape& solidList = faceToSolids.ChangeFromKey( wFace );
734 solidIt.Initialize( solidList );
735 while ( solidIt.More() )
737 const TopoDS_Shape& solid = solidIt.Value();
738 if ( meshedSolids.Contains( solid )) {
739 solidList.Remove( solidIt );
740 continue; // already computed prism
742 // find a source FACE of the SOLID: it's a FACE sharing a bottom EDGE with wFace
743 const TopoDS_Edge& wEdge = (*wQuad)->side[ QUAD_TOP_SIDE ].grid->Edge(0);
744 PShapeIteratorPtr faceIt = myHelper->GetAncestors( wEdge, *myHelper->GetMesh(),
746 while ( const TopoDS_Shape* f = faceIt->next() )
748 const TopoDS_Face& candidateF = TopoDS::Face( *f );
750 prism.myBottom = candidateF;
751 mySetErrorToSM = false;
752 if ( !myHelper->IsSubShape( candidateF, prismIt->myShape3D ) &&
753 myHelper->IsSubShape( candidateF, solid ) &&
754 !myHelper->GetMesh()->GetSubMesh( candidateF )->IsMeshComputed() &&
755 initPrism( prism, solid ) &&
756 project2dMesh( prismIt->myBottom, candidateF))
758 mySetErrorToSM = true;
759 if ( !compute( prism ))
761 SMESHDS_SubMesh* smDS = theMesh.GetMeshDS()->MeshElements( prism.myTop );
762 if ( !myHelper->IsSameElemGeometry( smDS, SMDSGeom_QUADRANGLE ))
764 meshedFaces.push_front( prism.myTop );
765 meshedFaces.push_front( prism.myBottom );
767 meshedPrism.push_back( prism );
768 meshedSolids.Add( solid );
772 mySetErrorToSM = true;
774 if ( meshedSolids.Contains( solid ))
775 solidList.Remove( solidIt );
781 if ( !meshedFaces.empty() )
782 break; // to compute prisms with avident sources
785 // find FACEs with local 1D hyps, which has to be computed by now,
786 // or at least any computed FACEs
787 for ( int iF = 1; ( meshedFaces.empty() && iF < faceToSolids.Extent() ); ++iF )
789 const TopoDS_Face& face = TopoDS::Face( faceToSolids.FindKey( iF ));
790 const TopTools_ListOfShape& solidList = faceToSolids.FindFromKey( face );
791 if ( solidList.IsEmpty() ) continue;
792 SMESH_subMesh* faceSM = theMesh.GetSubMesh( face );
793 if ( !faceSM->IsEmpty() )
795 meshedFaces.push_back( face ); // lower priority
799 bool allSubMeComputed = true;
800 SMESH_subMeshIteratorPtr smIt = faceSM->getDependsOnIterator(false,true);
801 while ( smIt->more() && allSubMeComputed )
802 allSubMeComputed = smIt->next()->IsMeshComputed();
803 if ( allSubMeComputed )
805 faceSM->ComputeStateEngine( SMESH_subMesh::COMPUTE );
806 if ( !faceSM->IsEmpty() )
807 meshedFaces.push_front( face ); // higher priority
809 faceSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
815 // TODO. there are other ways to find out the source FACE:
816 // propagation, topological similarity, ect.
818 // simply try to mesh all not meshed SOLIDs
819 if ( meshedFaces.empty() )
821 for ( TopExp_Explorer solid( theShape, TopAbs_SOLID ); solid.More(); solid.Next() )
823 mySetErrorToSM = false;
825 if ( !meshedSolids.Contains( solid.Current() ) &&
826 initPrism( prism, solid.Current() ))
828 mySetErrorToSM = true;
829 if ( !compute( prism ))
831 meshedFaces.push_front( prism.myTop );
832 meshedFaces.push_front( prism.myBottom );
833 meshedPrism.push_back( prism );
834 meshedSolids.Add( solid.Current() );
836 mySetErrorToSM = true;
840 if ( meshedFaces.empty() ) // set same error to 10 not-computed solids
842 SMESH_ComputeErrorPtr err = SMESH_ComputeError::New
843 ( COMPERR_BAD_INPUT_MESH, "No meshed source face found", this );
845 const int maxNbErrors = 10; // limit nb errors not to overload the Compute dialog
846 TopExp_Explorer solid( theShape, TopAbs_SOLID );
847 for ( int i = 0; ( i < maxNbErrors && solid.More() ); ++i, solid.Next() )
848 if ( !meshedSolids.Contains( solid.Current() ))
850 SMESH_subMesh* sm = theMesh.GetSubMesh( solid.Current() );
851 sm->GetComputeError() = err;
859 //================================================================================
861 * \brief Find wall faces by bottom edges
863 //================================================================================
865 bool StdMeshers_Prism_3D::getWallFaces( Prism_3D::TPrismTopo & thePrism,
866 const int totalNbFaces)
868 thePrism.myWallQuads.clear();
870 SMESH_Mesh* mesh = myHelper->GetMesh();
872 StdMeshers_Quadrangle_2D* quadAlgo = TQuadrangleAlgo::instance( this, myHelper );
874 TopTools_MapOfShape faceMap;
875 TopTools_IndexedDataMapOfShapeListOfShape edgeToFaces;
876 TopExp::MapShapesAndAncestors( thePrism.myShape3D,
877 TopAbs_EDGE, TopAbs_FACE, edgeToFaces );
879 // ------------------------------
880 // Get the 1st row of wall FACEs
881 // ------------------------------
883 list< TopoDS_Edge >::iterator edge = thePrism.myBottomEdges.begin();
884 std::list< int >::iterator nbE = thePrism.myNbEdgesInWires.begin();
887 while ( edge != thePrism.myBottomEdges.end() )
890 if ( BRep_Tool::Curve( *edge, f,l ).IsNull() )
892 edge = thePrism.myBottomEdges.erase( edge );
898 TopTools_ListIteratorOfListOfShape faceIt( edgeToFaces.FindFromKey( *edge ));
899 for ( ; faceIt.More(); faceIt.Next() )
901 const TopoDS_Face& face = TopoDS::Face( faceIt.Value() );
902 if ( !thePrism.myBottom.IsSame( face ))
904 Prism_3D::TQuadList quadList( 1, quadAlgo->CheckNbEdges( *mesh, face ));
905 if ( !quadList.back() )
906 return toSM( error(TCom("Side face #") << shapeID( face )
907 << " not meshable with quadrangles"));
908 if ( ! setBottomEdge( *edge, quadList.back(), face ))
909 return toSM( error(TCom("Composite 'horizontal' edges are not supported")));
910 thePrism.myWallQuads.push_back( quadList );
924 // -------------------------
925 // Find the rest wall FACEs
926 // -------------------------
928 // Compose a vector of indixes of right neighbour FACE for each wall FACE
929 // that is not so evident in case of several WIREs in the bottom FACE
930 thePrism.myRightQuadIndex.clear();
931 for ( size_t i = 0; i < thePrism.myWallQuads.size(); ++i )
932 thePrism.myRightQuadIndex.push_back( i+1 );
933 list< int >::iterator nbEinW = thePrism.myNbEdgesInWires.begin();
934 for ( int iLeft = 0; nbEinW != thePrism.myNbEdgesInWires.end(); ++nbEinW )
936 thePrism.myRightQuadIndex[ iLeft + *nbEinW - 1 ] = iLeft; // 1st EDGE index of a current WIRE
940 while ( totalNbFaces - faceMap.Extent() > 2 )
942 // find wall FACEs adjacent to each of wallQuads by the right side EDGE
945 nbKnownFaces = faceMap.Extent();
946 StdMeshers_FaceSidePtr rightSide, topSide; // sides of the quad
947 for ( size_t i = 0; i < thePrism.myWallQuads.size(); ++i )
949 rightSide = thePrism.myWallQuads[i].back()->side[ QUAD_RIGHT_SIDE ];
950 for ( int iE = 0; iE < rightSide->NbEdges(); ++iE ) // rightSide can be composite
952 const TopoDS_Edge & rightE = rightSide->Edge( iE );
953 TopTools_ListIteratorOfListOfShape face( edgeToFaces.FindFromKey( rightE ));
954 for ( ; face.More(); face.Next() )
955 if ( faceMap.Add( face.Value() ))
957 // a new wall FACE encountered, store it in thePrism.myWallQuads
958 const int iRight = thePrism.myRightQuadIndex[i];
959 topSide = thePrism.myWallQuads[ iRight ].back()->side[ QUAD_TOP_SIDE ];
960 const TopoDS_Edge& newBotE = topSide->Edge(0);
961 const TopoDS_Shape& newWallF = face.Value();
962 thePrism.myWallQuads[ iRight ].push_back( quadAlgo->CheckNbEdges( *mesh, newWallF ));
963 if ( !thePrism.myWallQuads[ iRight ].back() )
964 return toSM( error(TCom("Side face #") << shapeID( newWallF ) <<
965 " not meshable with quadrangles"));
966 if ( ! setBottomEdge( newBotE, thePrism.myWallQuads[ iRight ].back(), newWallF ))
967 return toSM( error(TCom("Composite 'horizontal' edges are not supported")));
971 } while ( nbKnownFaces != faceMap.Extent() );
973 // find wall FACEs adjacent to each of thePrism.myWallQuads by the top side EDGE
974 if ( totalNbFaces - faceMap.Extent() > 2 )
976 for ( size_t i = 0; i < thePrism.myWallQuads.size(); ++i )
978 StdMeshers_FaceSidePtr topSide = thePrism.myWallQuads[i].back()->side[ QUAD_TOP_SIDE ];
979 const TopoDS_Edge & topE = topSide->Edge( 0 );
980 if ( topSide->NbEdges() > 1 )
981 return toSM( error(COMPERR_BAD_SHAPE, TCom("Side face #") <<
982 shapeID( thePrism.myWallQuads[i].back()->face )
983 << " has a composite top edge"));
984 TopTools_ListIteratorOfListOfShape faceIt( edgeToFaces.FindFromKey( topE ));
985 for ( ; faceIt.More(); faceIt.Next() )
986 if ( faceMap.Add( faceIt.Value() ))
988 // a new wall FACE encountered, store it in wallQuads
989 thePrism.myWallQuads[ i ].push_back( quadAlgo->CheckNbEdges( *mesh, faceIt.Value() ));
990 if ( !thePrism.myWallQuads[ i ].back() )
991 return toSM( error(TCom("Side face #") << shapeID( faceIt.Value() ) <<
992 " not meshable with quadrangles"));
993 if ( ! setBottomEdge( topE, thePrism.myWallQuads[ i ].back(), faceIt.Value() ))
994 return toSM( error(TCom("Composite 'horizontal' edges are not supported")));
995 if ( totalNbFaces - faceMap.Extent() == 2 )
997 i = thePrism.myWallQuads.size(); // to quit from the outer loop
1003 } // while ( totalNbFaces - faceMap.Extent() > 2 )
1005 // ------------------
1006 // Find the top FACE
1007 // ------------------
1009 if ( thePrism.myTop.IsNull() )
1011 // now only top and bottom FACEs are not in the faceMap
1012 faceMap.Add( thePrism.myBottom );
1013 for ( TopExp_Explorer f( thePrism.myShape3D, TopAbs_FACE );f.More(); f.Next() )
1014 if ( !faceMap.Contains( f.Current() )) {
1015 thePrism.myTop = TopoDS::Face( f.Current() );
1018 if ( thePrism.myTop.IsNull() )
1019 return toSM( error("Top face not found"));
1022 // Check that the top FACE shares all the top EDGEs
1023 for ( size_t i = 0; i < thePrism.myWallQuads.size(); ++i )
1025 StdMeshers_FaceSidePtr topSide = thePrism.myWallQuads[i].back()->side[ QUAD_TOP_SIDE ];
1026 const TopoDS_Edge & topE = topSide->Edge( 0 );
1027 if ( !myHelper->IsSubShape( topE, thePrism.myTop ))
1028 return toSM( error( TCom("Wrong source face (#") << shapeID( thePrism.myBottom )));
1034 //=======================================================================
1035 //function : compute
1036 //purpose : Compute mesh on a SOLID
1037 //=======================================================================
1039 bool StdMeshers_Prism_3D::compute(const Prism_3D::TPrismTopo& thePrism)
1041 myHelper->IsQuadraticSubMesh( thePrism.myShape3D );
1042 if ( _computeCanceled )
1043 return toSM( error( SMESH_ComputeError::New(COMPERR_CANCELED)));
1045 // Make all side FACEs of thePrism meshed with quads
1046 if ( !computeWalls( thePrism ))
1049 // Analyse mesh and geometry to find all block sub-shapes and submeshes
1050 if ( !myBlock.Init( myHelper, thePrism ))
1051 return toSM( error( myBlock.GetError()));
1053 SMESHDS_Mesh* meshDS = myHelper->GetMeshDS();
1055 int volumeID = meshDS->ShapeToIndex( thePrism.myShape3D );
1057 // Try to get gp_Trsf to get all nodes from bottom ones
1058 vector<gp_Trsf> trsf;
1059 gp_Trsf bottomToTopTrsf;
1060 if ( !myBlock.GetLayersTransformation( trsf, thePrism ))
1062 else if ( !trsf.empty() )
1063 bottomToTopTrsf = trsf.back();
1065 // To compute coordinates of a node inside a block, it is necessary to know
1066 // 1. normalized parameters of the node by which
1067 // 2. coordinates of node projections on all block sub-shapes are computed
1069 // So we fill projections on vertices at once as they are same for all nodes
1070 myShapeXYZ.resize( myBlock.NbSubShapes() );
1071 for ( int iV = SMESH_Block::ID_FirstV; iV < SMESH_Block::ID_FirstE; ++iV ) {
1072 myBlock.VertexPoint( iV, myShapeXYZ[ iV ]);
1073 SHOWYXZ("V point " <<iV << " ", myShapeXYZ[ iV ]);
1076 // Projections on the top and bottom faces are taken from nodes existing
1077 // on these faces; find correspondence between bottom and top nodes
1078 myBotToColumnMap.clear();
1079 if ( !assocOrProjBottom2Top( bottomToTopTrsf ) ) // it also fills myBotToColumnMap
1083 // Create nodes inside the block
1085 // try to use transformation (issue 0020680)
1086 if ( !trsf.empty() )
1088 // loop on nodes inside the bottom face
1089 TNode2ColumnMap::iterator bot_column = myBotToColumnMap.begin();
1090 for ( ; bot_column != myBotToColumnMap.end(); ++bot_column )
1092 const Prism_3D::TNode& tBotNode = bot_column->first; // bottom TNode
1093 if ( tBotNode.GetPositionType() != SMDS_TOP_FACE )
1094 continue; // node is not inside face
1096 // column nodes; middle part of the column are zero pointers
1097 TNodeColumn& column = bot_column->second;
1098 TNodeColumn::iterator columnNodes = column.begin();
1099 for ( int z = 0; columnNodes != column.end(); ++columnNodes, ++z)
1101 const SMDS_MeshNode* & node = *columnNodes;
1102 if ( node ) continue; // skip bottom or top node
1104 gp_XYZ coords = tBotNode.GetCoords();
1105 trsf[z-1].Transforms( coords );
1106 node = meshDS->AddNode( coords.X(), coords.Y(), coords.Z() );
1107 meshDS->SetNodeInVolume( node, volumeID );
1109 } // loop on bottom nodes
1111 else // use block approach
1113 // loop on nodes inside the bottom face
1114 Prism_3D::TNode prevBNode;
1115 TNode2ColumnMap::iterator bot_column = myBotToColumnMap.begin();
1116 for ( ; bot_column != myBotToColumnMap.end(); ++bot_column )
1118 const Prism_3D::TNode& tBotNode = bot_column->first; // bottom TNode
1119 if ( tBotNode.GetPositionType() != SMDS_TOP_FACE )
1120 continue; // node is not inside the FACE
1122 // column nodes; middle part of the column are zero pointers
1123 TNodeColumn& column = bot_column->second;
1125 gp_XYZ botParams, topParams;
1126 if ( !tBotNode.HasParams() )
1128 // compute bottom node parameters
1129 gp_XYZ paramHint(-1,-1,-1);
1130 if ( prevBNode.IsNeighbor( tBotNode ))
1131 paramHint = prevBNode.GetParams();
1132 if ( !myBlock.ComputeParameters( tBotNode.GetCoords(), tBotNode.ChangeParams(),
1133 ID_BOT_FACE, paramHint ))
1134 return toSM( error(TCom("Can't compute normalized parameters for node ")
1135 << tBotNode.myNode->GetID() << " on the face #"
1136 << myBlock.SubMesh( ID_BOT_FACE )->GetId() ));
1137 prevBNode = tBotNode;
1139 botParams = topParams = tBotNode.GetParams();
1140 topParams.SetZ( 1 );
1142 // compute top node parameters
1143 if ( column.size() > 2 ) {
1144 gp_Pnt topCoords = gpXYZ( column.back() );
1145 if ( !myBlock.ComputeParameters( topCoords, topParams, ID_TOP_FACE, topParams ))
1146 return toSM( error(TCom("Can't compute normalized parameters ")
1147 << "for node " << column.back()->GetID()
1148 << " on the face #"<< column.back()->getshapeId() ));
1151 else // top nodes are created by projection using parameters
1153 botParams = topParams = tBotNode.GetParams();
1154 topParams.SetZ( 1 );
1157 myShapeXYZ[ ID_BOT_FACE ] = tBotNode.GetCoords();
1158 myShapeXYZ[ ID_TOP_FACE ] = gpXYZ( column.back() );
1161 TNodeColumn::iterator columnNodes = column.begin();
1162 for ( int z = 0; columnNodes != column.end(); ++columnNodes, ++z)
1164 const SMDS_MeshNode* & node = *columnNodes;
1165 if ( node ) continue; // skip bottom or top node
1167 // params of a node to create
1168 double rz = (double) z / (double) ( column.size() - 1 );
1169 gp_XYZ params = botParams * ( 1 - rz ) + topParams * rz;
1171 // set coords on all faces and nodes
1172 const int nbSideFaces = 4;
1173 int sideFaceIDs[nbSideFaces] = { SMESH_Block::ID_Fx0z,
1174 SMESH_Block::ID_Fx1z,
1175 SMESH_Block::ID_F0yz,
1176 SMESH_Block::ID_F1yz };
1177 for ( int iF = 0; iF < nbSideFaces; ++iF )
1178 if ( !setFaceAndEdgesXYZ( sideFaceIDs[ iF ], params, z ))
1181 // compute coords for a new node
1183 if ( !SMESH_Block::ShellPoint( params, myShapeXYZ, coords ))
1184 return toSM( error("Can't compute coordinates by normalized parameters"));
1186 // if ( !meshDS->MeshElements( volumeID ) ||
1187 // meshDS->MeshElements( volumeID )->NbNodes() == 0 )
1188 // pointsToPython(myShapeXYZ);
1189 SHOWYXZ("TOPFacePoint ",myShapeXYZ[ ID_TOP_FACE]);
1190 SHOWYXZ("BOT Node "<< tBotNode.myNode->GetID(),gpXYZ(tBotNode.myNode));
1191 SHOWYXZ("ShellPoint ",coords);
1194 node = meshDS->AddNode( coords.X(), coords.Y(), coords.Z() );
1195 meshDS->SetNodeInVolume( node, volumeID );
1197 } // loop on bottom nodes
1202 SMESHDS_SubMesh* smDS = myBlock.SubMeshDS( ID_BOT_FACE );
1203 if ( !smDS ) return toSM( error(COMPERR_BAD_INPUT_MESH, "Null submesh"));
1205 // loop on bottom mesh faces
1206 SMDS_ElemIteratorPtr faceIt = smDS->GetElements();
1207 while ( faceIt->more() )
1209 const SMDS_MeshElement* face = faceIt->next();
1210 if ( !face || face->GetType() != SMDSAbs_Face )
1213 // find node columns for each node
1214 int nbNodes = face->NbCornerNodes();
1215 vector< const TNodeColumn* > columns( nbNodes );
1216 for ( int i = 0; i < nbNodes; ++i )
1218 const SMDS_MeshNode* n = face->GetNode( i );
1219 if ( n->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE ) {
1220 TNode2ColumnMap::iterator bot_column = myBotToColumnMap.find( n );
1221 if ( bot_column == myBotToColumnMap.end() )
1222 return toSM( error(TCom("No nodes found above node ") << n->GetID() ));
1223 columns[ i ] = & bot_column->second;
1226 columns[ i ] = myBlock.GetNodeColumn( n );
1227 if ( !columns[ i ] )
1228 return toSM( error(TCom("No side nodes found above node ") << n->GetID() ));
1232 AddPrisms( columns, myHelper );
1234 } // loop on bottom mesh faces
1237 myBotToColumnMap.clear();
1243 //=======================================================================
1244 //function : computeWalls
1245 //purpose : Compute 2D mesh on walls FACEs of a prism
1246 //=======================================================================
1248 bool StdMeshers_Prism_3D::computeWalls(const Prism_3D::TPrismTopo& thePrism)
1250 SMESH_Mesh* mesh = myHelper->GetMesh();
1251 SMESHDS_Mesh* meshDS = myHelper->GetMeshDS();
1252 DBGOUT( endl << "COMPUTE Prism " << meshDS->ShapeToIndex( thePrism.myShape3D ));
1254 TProjction1dAlgo* projector1D = TProjction1dAlgo::instance( this );
1255 StdMeshers_Quadrangle_2D* quadAlgo = TQuadrangleAlgo::instance( this, myHelper );
1257 SMESH_HypoFilter hyp1dFilter( SMESH_HypoFilter::IsAlgo(),/*not=*/true);
1258 hyp1dFilter.And( SMESH_HypoFilter::HasDim( 1 ));
1259 hyp1dFilter.And( SMESH_HypoFilter::IsMoreLocalThan( thePrism.myShape3D, *mesh ));
1261 // Discretize equally 'vertical' EDGEs
1262 // -----------------------------------
1263 // find source FACE sides for projection: either already computed ones or
1264 // the 'most composite' ones
1265 multimap< int, int > wgt2quad;
1266 for ( size_t iW = 0; iW != thePrism.myWallQuads.size(); ++iW )
1268 Prism_3D::TQuadList::const_iterator quad = thePrism.myWallQuads[iW].begin();
1269 int wgt = 0; // "weight"
1270 for ( ; quad != thePrism.myWallQuads[iW].end(); ++quad )
1272 StdMeshers_FaceSidePtr lftSide = (*quad)->side[ QUAD_LEFT_SIDE ];
1273 for ( int i = 0; i < lftSide->NbEdges(); ++i )
1276 const TopoDS_Edge& E = lftSide->Edge(i);
1277 if ( mesh->GetSubMesh( E )->IsMeshComputed() )
1279 else if ( mesh->GetHypothesis( E, hyp1dFilter, true )) // local hypothesis!
1283 wgt2quad.insert( make_pair( wgt, iW ));
1285 // in quadratic mesh, pass ignoreMediumNodes to quad sides
1286 if ( myHelper->GetIsQuadratic() )
1288 quad = thePrism.myWallQuads[iW].begin();
1289 for ( ; quad != thePrism.myWallQuads[iW].end(); ++quad )
1290 for ( int i = 0; i < NB_QUAD_SIDES; ++i )
1291 (*quad)->side[ i ].grid->SetIgnoreMediumNodes( true );
1295 // Project 'vertical' EDGEs, from left to right
1296 multimap< int, int >::reverse_iterator w2q = wgt2quad.rbegin();
1297 for ( ; w2q != wgt2quad.rend(); ++w2q )
1299 const int iW = w2q->second;
1300 const Prism_3D::TQuadList& quads = thePrism.myWallQuads[ iW ];
1301 Prism_3D::TQuadList::const_iterator quad = quads.begin();
1302 for ( ; quad != quads.end(); ++quad )
1304 StdMeshers_FaceSidePtr rgtSide = (*quad)->side[ QUAD_RIGHT_SIDE ]; // tgt
1305 StdMeshers_FaceSidePtr lftSide = (*quad)->side[ QUAD_LEFT_SIDE ]; // src
1306 bool swapLeftRight = ( lftSide->NbSegments( /*update=*/true ) == 0 &&
1307 rgtSide->NbSegments( /*update=*/true ) > 0 );
1308 if ( swapLeftRight )
1309 std::swap( lftSide, rgtSide );
1311 // assure that all the source (left) EDGEs are meshed
1312 int nbSrcSegments = 0;
1313 for ( int i = 0; i < lftSide->NbEdges(); ++i )
1315 const TopoDS_Edge& srcE = lftSide->Edge(i);
1316 SMESH_subMesh* srcSM = mesh->GetSubMesh( srcE );
1317 if ( !srcSM->IsMeshComputed() ) {
1318 DBGOUT( "COMPUTE V edge " << srcSM->GetId() );
1319 TopoDS_Edge prpgSrcE = findPropagationSource( srcE );
1320 if ( !prpgSrcE.IsNull() ) {
1321 srcSM->ComputeSubMeshStateEngine( SMESH_subMesh::COMPUTE );
1322 projector1D->myHyp.SetSourceEdge( prpgSrcE );
1323 projector1D->Compute( *mesh, srcE );
1324 srcSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
1327 srcSM->ComputeSubMeshStateEngine( SMESH_subMesh::COMPUTE );
1328 srcSM->ComputeStateEngine ( SMESH_subMesh::COMPUTE );
1330 if ( !srcSM->IsMeshComputed() )
1331 return toSM( error( "Can't compute 1D mesh" ));
1333 nbSrcSegments += srcSM->GetSubMeshDS()->NbElements();
1335 // check target EDGEs
1336 int nbTgtMeshed = 0, nbTgtSegments = 0;
1337 vector< bool > isTgtEdgeComputed( rgtSide->NbEdges() );
1338 for ( int i = 0; i < rgtSide->NbEdges(); ++i )
1340 const TopoDS_Edge& tgtE = rgtSide->Edge(i);
1341 SMESH_subMesh* tgtSM = mesh->GetSubMesh( tgtE );
1342 if (( isTgtEdgeComputed[ i ] = tgtSM->IsMeshComputed() )) {
1344 nbTgtSegments += tgtSM->GetSubMeshDS()->NbElements();
1347 if ( rgtSide->NbEdges() == nbTgtMeshed ) // all tgt EDGEs meshed
1349 if ( nbTgtSegments != nbSrcSegments )
1351 for ( int i = 0; i < lftSide->NbEdges(); ++i )
1352 addBadInputElements( meshDS->MeshElements( lftSide->Edge( i )));
1353 for ( int i = 0; i < rgtSide->NbEdges(); ++i )
1354 addBadInputElements( meshDS->MeshElements( rgtSide->Edge( i )));
1355 return toSM( error( TCom("Different nb of segment on logically vertical edges #")
1356 << shapeID( lftSide->Edge(0) ) << " and #"
1357 << shapeID( rgtSide->Edge(0) ) << ": "
1358 << nbSrcSegments << " != " << nbTgtSegments ));
1362 // Compute 'vertical projection'
1363 if ( nbTgtMeshed == 0 )
1365 // compute nodes on target VERTEXes
1366 const UVPtStructVec& srcNodeStr = lftSide->GetUVPtStruct();
1367 if ( srcNodeStr.size() == 0 )
1368 return toSM( error( TCom("Invalid node positions on edge #") <<
1369 shapeID( lftSide->Edge(0) )));
1370 vector< SMDS_MeshNode* > newNodes( srcNodeStr.size() );
1371 for ( int is2ndV = 0; is2ndV < 2; ++is2ndV )
1373 const TopoDS_Edge& E = rgtSide->Edge( is2ndV ? rgtSide->NbEdges()-1 : 0 );
1374 TopoDS_Vertex v = myHelper->IthVertex( is2ndV, E );
1375 mesh->GetSubMesh( v )->ComputeStateEngine( SMESH_subMesh::COMPUTE );
1376 const SMDS_MeshNode* n = SMESH_Algo::VertexNode( v, meshDS );
1377 newNodes[ is2ndV ? 0 : newNodes.size()-1 ] = (SMDS_MeshNode*) n;
1380 // compute nodes on target EDGEs
1381 DBGOUT( "COMPUTE V edge (proj) " << shapeID( lftSide->Edge(0)));
1382 rgtSide->Reverse(); // direct it same as the lftSide
1383 myHelper->SetElementsOnShape( false ); // myHelper holds the prism shape
1384 TopoDS_Edge tgtEdge;
1385 for ( size_t iN = 1; iN < srcNodeStr.size()-1; ++iN ) // add nodes
1387 gp_Pnt p = rgtSide->Value3d ( srcNodeStr[ iN ].normParam );
1388 double u = rgtSide->Parameter( srcNodeStr[ iN ].normParam, tgtEdge );
1389 newNodes[ iN ] = meshDS->AddNode( p.X(), p.Y(), p.Z() );
1390 meshDS->SetNodeOnEdge( newNodes[ iN ], tgtEdge, u );
1392 for ( size_t iN = 1; iN < srcNodeStr.size(); ++iN ) // add segments
1394 // find an EDGE to set a new segment
1395 std::pair<int, TopAbs_ShapeEnum> id2type =
1396 myHelper->GetMediumPos( newNodes[ iN-1 ], newNodes[ iN ] );
1397 if ( id2type.second != TopAbs_EDGE )
1399 // new nodes are on different EDGEs; put one of them on VERTEX
1400 const int edgeIndex = rgtSide->EdgeIndex( srcNodeStr[ iN-1 ].normParam );
1401 const double vertexParam = rgtSide->LastParameter( edgeIndex );
1402 const gp_Pnt p = BRep_Tool::Pnt( rgtSide->LastVertex( edgeIndex ));
1403 const int isPrev = ( Abs( srcNodeStr[ iN-1 ].normParam - vertexParam ) <
1404 Abs( srcNodeStr[ iN ].normParam - vertexParam ));
1405 meshDS->UnSetNodeOnShape( newNodes[ iN-isPrev ] );
1406 meshDS->SetNodeOnVertex ( newNodes[ iN-isPrev ], rgtSide->LastVertex( edgeIndex ));
1407 meshDS->MoveNode ( newNodes[ iN-isPrev ], p.X(), p.Y(), p.Z() );
1408 id2type.first = newNodes[ iN-(1-isPrev) ]->getshapeId();
1410 SMDS_MeshElement* newEdge = myHelper->AddEdge( newNodes[ iN-1 ], newNodes[ iN ] );
1411 meshDS->SetMeshElementOnShape( newEdge, id2type.first );
1413 myHelper->SetElementsOnShape( true );
1414 for ( int i = 0; i < rgtSide->NbEdges(); ++i ) // update state of sub-meshes
1416 const TopoDS_Edge& E = rgtSide->Edge( i );
1417 SMESH_subMesh* tgtSM = mesh->GetSubMesh( E );
1418 tgtSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
1421 // to continue projection from the just computed side as a source
1422 if ( !swapLeftRight && rgtSide->NbEdges() > 1 && w2q->second == iW )
1424 std::pair<int,int> wgt2quadKeyVal( w2q->first + 1, thePrism.myRightQuadIndex[ iW ]);
1425 wgt2quad.insert( wgt2quadKeyVal ); // it will be skipped by ++w2q
1426 wgt2quad.insert( wgt2quadKeyVal );
1427 w2q = wgt2quad.rbegin();
1432 // HOPE assigned hypotheses are OK, so that equal nb of segments will be generated
1433 //return toSM( error("Partial projection not implemented"));
1435 } // loop on quads of a composite wall side
1436 } // loop on the ordered wall sides
1440 for ( size_t iW = 0; iW != thePrism.myWallQuads.size(); ++iW )
1442 Prism_3D::TQuadList::const_iterator quad = thePrism.myWallQuads[iW].begin();
1443 for ( ; quad != thePrism.myWallQuads[iW].end(); ++quad )
1445 // Top EDGEs must be projections from the bottom ones
1446 // to compute stuctured quad mesh on wall FACEs
1447 // ---------------------------------------------------
1449 const TopoDS_Edge& botE = (*quad)->side[ QUAD_BOTTOM_SIDE ].grid->Edge(0);
1450 const TopoDS_Edge& topE = (*quad)->side[ QUAD_TOP_SIDE ].grid->Edge(0);
1451 SMESH_subMesh* botSM = mesh->GetSubMesh( botE );
1452 SMESH_subMesh* topSM = mesh->GetSubMesh( topE );
1453 SMESH_subMesh* srcSM = botSM;
1454 SMESH_subMesh* tgtSM = topSM;
1455 if ( !srcSM->IsMeshComputed() && tgtSM->IsMeshComputed() )
1456 std::swap( srcSM, tgtSM );
1458 if ( !srcSM->IsMeshComputed() )
1460 DBGOUT( "COMPUTE H edge " << srcSM->GetId());
1461 srcSM->ComputeSubMeshStateEngine( SMESH_subMesh::COMPUTE ); // nodes on VERTEXes
1462 srcSM->ComputeStateEngine( SMESH_subMesh::COMPUTE ); // segments on the EDGE
1464 srcSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
1466 if ( tgtSM->IsMeshComputed() &&
1467 tgtSM->GetSubMeshDS()->NbNodes() != srcSM->GetSubMeshDS()->NbNodes() )
1469 // the top EDGE is computed differently than the bottom one,
1470 // try to clear a wrong mesh
1471 bool isAdjFaceMeshed = false;
1472 PShapeIteratorPtr fIt = myHelper->GetAncestors( tgtSM->GetSubShape(),
1473 *mesh, TopAbs_FACE );
1474 while ( const TopoDS_Shape* f = fIt->next() )
1475 if (( isAdjFaceMeshed = mesh->GetSubMesh( *f )->IsMeshComputed() ))
1477 if ( isAdjFaceMeshed )
1478 return toSM( error( TCom("Different nb of segment on logically horizontal edges #")
1479 << shapeID( botE ) << " and #"
1480 << shapeID( topE ) << ": "
1481 << tgtSM->GetSubMeshDS()->NbElements() << " != "
1482 << srcSM->GetSubMeshDS()->NbElements() ));
1483 tgtSM->ComputeStateEngine( SMESH_subMesh::CLEAN );
1485 if ( !tgtSM->IsMeshComputed() )
1487 // compute nodes on VERTEXes
1488 SMESH_subMeshIteratorPtr smIt = tgtSM->getDependsOnIterator(/*includeSelf=*/false);
1489 while ( smIt->more() )
1490 smIt->next()->ComputeSubMeshStateEngine( SMESH_subMesh::COMPUTE );
1492 DBGOUT( "COMPUTE H edge (proj) " << tgtSM->GetId());
1493 projector1D->myHyp.SetSourceEdge( TopoDS::Edge( srcSM->GetSubShape() ));
1494 projector1D->InitComputeError();
1495 bool ok = projector1D->Compute( *mesh, tgtSM->GetSubShape() );
1498 SMESH_ComputeErrorPtr err = projector1D->GetComputeError();
1499 if ( err->IsOK() ) err->myName = COMPERR_ALGO_FAILED;
1500 tgtSM->GetComputeError() = err;
1504 tgtSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
1507 // Compute quad mesh on wall FACEs
1508 // -------------------------------
1509 const TopoDS_Face& face = (*quad)->face;
1510 SMESH_subMesh* fSM = mesh->GetSubMesh( face );
1511 if ( ! fSM->IsMeshComputed() )
1513 // make all EDGES meshed
1514 fSM->ComputeSubMeshStateEngine( SMESH_subMesh::COMPUTE );
1515 if ( !fSM->SubMeshesComputed() )
1516 return toSM( error( COMPERR_BAD_INPUT_MESH,
1517 "Not all edges have valid algorithm and hypothesis"));
1519 quadAlgo->InitComputeError();
1520 DBGOUT( "COMPUTE Quad face " << fSM->GetId());
1521 bool ok = quadAlgo->Compute( *mesh, face );
1522 fSM->GetComputeError() = quadAlgo->GetComputeError();
1525 fSM->ComputeStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
1527 if ( myHelper->GetIsQuadratic() )
1529 // fill myHelper with medium nodes built by quadAlgo
1530 SMDS_ElemIteratorPtr fIt = fSM->GetSubMeshDS()->GetElements();
1531 while ( fIt->more() )
1532 myHelper->AddTLinks( dynamic_cast<const SMDS_MeshFace*>( fIt->next() ));
1540 //=======================================================================
1542 * \brief Returns a source EDGE of propagation to a given EDGE
1544 //=======================================================================
1546 TopoDS_Edge StdMeshers_Prism_3D::findPropagationSource( const TopoDS_Edge& E )
1548 for ( size_t i = 0; !myPropagChains[i].IsEmpty(); ++i )
1549 if ( myPropagChains[i].Contains( E ))
1550 return TopoDS::Edge( myPropagChains[i].FindKey( 1 ));
1552 return TopoDS_Edge();
1555 //=======================================================================
1556 //function : Evaluate
1558 //=======================================================================
1560 bool StdMeshers_Prism_3D::Evaluate(SMESH_Mesh& theMesh,
1561 const TopoDS_Shape& theShape,
1562 MapShapeNbElems& aResMap)
1564 if ( theShape.ShapeType() == TopAbs_COMPOUND )
1567 for ( TopoDS_Iterator it( theShape ); it.More(); it.Next() )
1568 ok &= Evaluate( theMesh, it.Value(), aResMap );
1571 SMESH_MesherHelper helper( theMesh );
1573 myHelper->SetSubShape( theShape );
1575 // find face contains only triangles
1576 vector < SMESH_subMesh * >meshFaces;
1577 TopTools_SequenceOfShape aFaces;
1578 int NumBase = 0, i = 0, NbQFs = 0;
1579 for (TopExp_Explorer exp(theShape, TopAbs_FACE); exp.More(); exp.Next()) {
1581 aFaces.Append(exp.Current());
1582 SMESH_subMesh *aSubMesh = theMesh.GetSubMesh(exp.Current());
1583 meshFaces.push_back(aSubMesh);
1584 MapShapeNbElemsItr anIt = aResMap.find(meshFaces[i-1]);
1585 if( anIt==aResMap.end() )
1586 return toSM( error( "Submesh can not be evaluated"));
1588 std::vector<int> aVec = (*anIt).second;
1589 int nbtri = Max(aVec[SMDSEntity_Triangle],aVec[SMDSEntity_Quad_Triangle]);
1590 int nbqua = Max(aVec[SMDSEntity_Quadrangle],aVec[SMDSEntity_Quad_Quadrangle]);
1591 if( nbtri==0 && nbqua>0 ) {
1600 std::vector<int> aResVec(SMDSEntity_Last);
1601 for(int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aResVec[i] = 0;
1602 SMESH_subMesh * sm = theMesh.GetSubMesh(theShape);
1603 aResMap.insert(std::make_pair(sm,aResVec));
1604 return toSM( error( "Submesh can not be evaluated" ));
1607 if(NumBase==0) NumBase = 1; // only quads => set 1 faces as base
1609 // find number of 1d elems for base face
1611 TopTools_MapOfShape Edges1;
1612 for (TopExp_Explorer exp(aFaces.Value(NumBase), TopAbs_EDGE); exp.More(); exp.Next()) {
1613 Edges1.Add(exp.Current());
1614 SMESH_subMesh *sm = theMesh.GetSubMesh(exp.Current());
1616 MapShapeNbElemsItr anIt = aResMap.find(sm);
1617 if( anIt == aResMap.end() ) continue;
1618 std::vector<int> aVec = (*anIt).second;
1619 nb1d += Max(aVec[SMDSEntity_Edge],aVec[SMDSEntity_Quad_Edge]);
1622 // find face opposite to base face
1624 for(i=1; i<=6; i++) {
1625 if(i==NumBase) continue;
1626 bool IsOpposite = true;
1627 for(TopExp_Explorer exp(aFaces.Value(i), TopAbs_EDGE); exp.More(); exp.Next()) {
1628 if( Edges1.Contains(exp.Current()) ) {
1638 // find number of 2d elems on side faces
1640 for(i=1; i<=6; i++) {
1641 if( i==OppNum || i==NumBase ) continue;
1642 MapShapeNbElemsItr anIt = aResMap.find( meshFaces[i-1] );
1643 if( anIt == aResMap.end() ) continue;
1644 std::vector<int> aVec = (*anIt).second;
1645 nb2d += Max(aVec[SMDSEntity_Quadrangle],aVec[SMDSEntity_Quad_Quadrangle]);
1648 MapShapeNbElemsItr anIt = aResMap.find( meshFaces[NumBase-1] );
1649 std::vector<int> aVec = (*anIt).second;
1650 bool IsQuadratic = (aVec[SMDSEntity_Quad_Triangle]>aVec[SMDSEntity_Triangle]) ||
1651 (aVec[SMDSEntity_Quad_Quadrangle]>aVec[SMDSEntity_Quadrangle]);
1652 int nb2d_face0_3 = Max(aVec[SMDSEntity_Triangle],aVec[SMDSEntity_Quad_Triangle]);
1653 int nb2d_face0_4 = Max(aVec[SMDSEntity_Quadrangle],aVec[SMDSEntity_Quad_Quadrangle]);
1654 int nb0d_face0 = aVec[SMDSEntity_Node];
1655 int nb1d_face0_int = ( nb2d_face0_3*3 + nb2d_face0_4*4 - nb1d ) / 2;
1657 std::vector<int> aResVec(SMDSEntity_Last);
1658 for(int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aResVec[i] = 0;
1660 aResVec[SMDSEntity_Quad_Penta] = nb2d_face0_3 * ( nb2d/nb1d );
1661 aResVec[SMDSEntity_Quad_Hexa] = nb2d_face0_4 * ( nb2d/nb1d );
1662 aResVec[SMDSEntity_Node] = nb0d_face0 * ( 2*nb2d/nb1d - 1 ) - nb1d_face0_int * nb2d/nb1d;
1665 aResVec[SMDSEntity_Node] = nb0d_face0 * ( nb2d/nb1d - 1 );
1666 aResVec[SMDSEntity_Penta] = nb2d_face0_3 * ( nb2d/nb1d );
1667 aResVec[SMDSEntity_Hexa] = nb2d_face0_4 * ( nb2d/nb1d );
1669 SMESH_subMesh * sm = theMesh.GetSubMesh(theShape);
1670 aResMap.insert(std::make_pair(sm,aResVec));
1675 //================================================================================
1677 * \brief Create prisms
1678 * \param columns - columns of nodes generated from nodes of a mesh face
1679 * \param helper - helper initialized by mesh and shape to add prisms to
1681 //================================================================================
1683 void StdMeshers_Prism_3D::AddPrisms( vector<const TNodeColumn*> & columns,
1684 SMESH_MesherHelper* helper)
1686 int nbNodes = columns.size();
1687 int nbZ = columns[0]->size();
1688 if ( nbZ < 2 ) return;
1690 // find out orientation
1691 bool isForward = true;
1692 SMDS_VolumeTool vTool;
1694 switch ( nbNodes ) {
1696 SMDS_VolumeOfNodes tmpPenta ( (*columns[0])[z-1], // bottom
1699 (*columns[0])[z], // top
1702 vTool.Set( &tmpPenta );
1703 isForward = vTool.IsForward();
1707 SMDS_VolumeOfNodes tmpHex( (*columns[0])[z-1], (*columns[1])[z-1], // bottom
1708 (*columns[2])[z-1], (*columns[3])[z-1],
1709 (*columns[0])[z], (*columns[1])[z], // top
1710 (*columns[2])[z], (*columns[3])[z] );
1711 vTool.Set( &tmpHex );
1712 isForward = vTool.IsForward();
1716 const int di = (nbNodes+1) / 3;
1717 SMDS_VolumeOfNodes tmpVol ( (*columns[0] )[z-1],
1718 (*columns[di] )[z-1],
1719 (*columns[2*di])[z-1],
1722 (*columns[2*di])[z] );
1723 vTool.Set( &tmpVol );
1724 isForward = vTool.IsForward();
1727 // vertical loop on columns
1729 helper->SetElementsOnShape( true );
1731 switch ( nbNodes ) {
1733 case 3: { // ---------- pentahedra
1734 const int i1 = isForward ? 1 : 2;
1735 const int i2 = isForward ? 2 : 1;
1736 for ( z = 1; z < nbZ; ++z )
1737 helper->AddVolume( (*columns[0 ])[z-1], // bottom
1738 (*columns[i1])[z-1],
1739 (*columns[i2])[z-1],
1740 (*columns[0 ])[z], // top
1742 (*columns[i2])[z] );
1745 case 4: { // ---------- hexahedra
1746 const int i1 = isForward ? 1 : 3;
1747 const int i3 = isForward ? 3 : 1;
1748 for ( z = 1; z < nbZ; ++z )
1749 helper->AddVolume( (*columns[0])[z-1], (*columns[i1])[z-1], // bottom
1750 (*columns[2])[z-1], (*columns[i3])[z-1],
1751 (*columns[0])[z], (*columns[i1])[z], // top
1752 (*columns[2])[z], (*columns[i3])[z] );
1755 case 6: { // ---------- octahedra
1756 const int iBase1 = isForward ? -1 : 0;
1757 const int iBase2 = isForward ? 0 :-1;
1758 for ( z = 1; z < nbZ; ++z )
1759 helper->AddVolume( (*columns[0])[z+iBase1], (*columns[1])[z+iBase1], // bottom or top
1760 (*columns[2])[z+iBase1], (*columns[3])[z+iBase1],
1761 (*columns[4])[z+iBase1], (*columns[5])[z+iBase1],
1762 (*columns[0])[z+iBase2], (*columns[1])[z+iBase2], // top or bottom
1763 (*columns[2])[z+iBase2], (*columns[3])[z+iBase2],
1764 (*columns[4])[z+iBase2], (*columns[5])[z+iBase2] );
1767 default: // ---------- polyhedra
1768 vector<int> quantities( 2 + nbNodes, 4 );
1769 quantities[0] = quantities[1] = nbNodes;
1770 columns.resize( nbNodes + 1 );
1771 columns[ nbNodes ] = columns[ 0 ];
1772 const int i1 = isForward ? 1 : 3;
1773 const int i3 = isForward ? 3 : 1;
1774 const int iBase1 = isForward ? -1 : 0;
1775 const int iBase2 = isForward ? 0 :-1;
1776 vector<const SMDS_MeshNode*> nodes( 2*nbNodes + 4*nbNodes);
1777 for ( z = 1; z < nbZ; ++z )
1779 for ( int i = 0; i < nbNodes; ++i ) {
1780 nodes[ i ] = (*columns[ i ])[z+iBase1]; // bottom or top
1781 nodes[ 2*nbNodes-i-1 ] = (*columns[ i ])[z+iBase2]; // top or bottom
1783 int di = 2*nbNodes + 4*i;
1784 nodes[ di+0 ] = (*columns[i ])[z ];
1785 nodes[ di+i1] = (*columns[i+1])[z ];
1786 nodes[ di+2 ] = (*columns[i+1])[z-1];
1787 nodes[ di+i3] = (*columns[i ])[z-1];
1789 helper->AddPolyhedralVolume( nodes, quantities );
1792 } // switch ( nbNodes )
1795 //================================================================================
1797 * \brief Find correspondence between bottom and top nodes
1798 * If elements on the bottom and top faces are topologically different,
1799 * and projection is possible and allowed, perform the projection
1800 * \retval bool - is a success or not
1802 //================================================================================
1804 bool StdMeshers_Prism_3D::assocOrProjBottom2Top( const gp_Trsf & bottomToTopTrsf )
1806 SMESH_subMesh * botSM = myBlock.SubMesh( ID_BOT_FACE );
1807 SMESH_subMesh * topSM = myBlock.SubMesh( ID_TOP_FACE );
1809 SMESHDS_SubMesh * botSMDS = botSM->GetSubMeshDS();
1810 SMESHDS_SubMesh * topSMDS = topSM->GetSubMeshDS();
1812 if ( !botSMDS || botSMDS->NbElements() == 0 )
1814 _gen->Compute( *myHelper->GetMesh(), botSM->GetSubShape() );
1815 botSMDS = botSM->GetSubMeshDS();
1816 if ( !botSMDS || botSMDS->NbElements() == 0 )
1817 return toSM( error(TCom("No elements on face #") << botSM->GetId() ));
1820 bool needProject = !topSM->IsMeshComputed();
1821 if ( !needProject &&
1822 (botSMDS->NbElements() != topSMDS->NbElements() ||
1823 botSMDS->NbNodes() != topSMDS->NbNodes()))
1825 MESSAGE("nb elem bot " << botSMDS->NbElements() <<
1826 " top " << ( topSMDS ? topSMDS->NbElements() : 0 ));
1827 MESSAGE("nb node bot " << botSMDS->NbNodes() <<
1828 " top " << ( topSMDS ? topSMDS->NbNodes() : 0 ));
1829 return toSM( error(TCom("Mesh on faces #") << botSM->GetId()
1830 <<" and #"<< topSM->GetId() << " seems different" ));
1833 if ( 0/*needProject && !myProjectTriangles*/ )
1834 return toSM( error(TCom("Mesh on faces #") << botSM->GetId()
1835 <<" and #"<< topSM->GetId() << " seems different" ));
1836 ///RETURN_BAD_RESULT("Need to project but not allowed");
1840 return projectBottomToTop( bottomToTopTrsf );
1843 TopoDS_Face botFace = TopoDS::Face( myBlock.Shape( ID_BOT_FACE ));
1844 TopoDS_Face topFace = TopoDS::Face( myBlock.Shape( ID_TOP_FACE ));
1845 // associate top and bottom faces
1846 TAssocTool::TShapeShapeMap shape2ShapeMap;
1847 if ( !TAssocTool::FindSubShapeAssociation( botFace, myBlock.Mesh(),
1848 topFace, myBlock.Mesh(),
1850 return toSM( error(TCom("Topology of faces #") << botSM->GetId()
1851 <<" and #"<< topSM->GetId() << " seems different" ));
1853 // Find matching nodes of top and bottom faces
1854 TNodeNodeMap n2nMap;
1855 if ( ! TAssocTool::FindMatchingNodesOnFaces( botFace, myBlock.Mesh(),
1856 topFace, myBlock.Mesh(),
1857 shape2ShapeMap, n2nMap ))
1858 return toSM( error(TCom("Mesh on faces #") << botSM->GetId()
1859 <<" and #"<< topSM->GetId() << " seems different" ));
1861 // Fill myBotToColumnMap
1863 int zSize = myBlock.VerticalSize();
1865 TNodeNodeMap::iterator bN_tN = n2nMap.begin();
1866 for ( ; bN_tN != n2nMap.end(); ++bN_tN )
1868 const SMDS_MeshNode* botNode = bN_tN->first;
1869 const SMDS_MeshNode* topNode = bN_tN->second;
1870 if ( botNode->GetPosition()->GetTypeOfPosition() != SMDS_TOP_FACE )
1871 continue; // wall columns are contained in myBlock
1872 // create node column
1873 Prism_3D::TNode bN( botNode );
1874 TNode2ColumnMap::iterator bN_col =
1875 myBotToColumnMap.insert( make_pair ( bN, TNodeColumn() )).first;
1876 TNodeColumn & column = bN_col->second;
1877 column.resize( zSize );
1878 column.front() = botNode;
1879 column.back() = topNode;
1884 //================================================================================
1886 * \brief Remove quadrangles from the top face and
1887 * create triangles there by projection from the bottom
1888 * \retval bool - a success or not
1890 //================================================================================
1892 bool StdMeshers_Prism_3D::projectBottomToTop( const gp_Trsf & bottomToTopTrsf )
1894 SMESHDS_Mesh* meshDS = myBlock.MeshDS();
1895 SMESH_subMesh * botSM = myBlock.SubMesh( ID_BOT_FACE );
1896 SMESH_subMesh * topSM = myBlock.SubMesh( ID_TOP_FACE );
1898 SMESHDS_SubMesh * botSMDS = botSM->GetSubMeshDS();
1899 SMESHDS_SubMesh * topSMDS = topSM->GetSubMeshDS();
1901 if ( topSMDS && topSMDS->NbElements() > 0 )
1902 topSM->ComputeStateEngine( SMESH_subMesh::CLEAN );
1904 const TopoDS_Face& botFace = TopoDS::Face( myBlock.Shape( ID_BOT_FACE )); // oriented within
1905 const TopoDS_Face& topFace = TopoDS::Face( myBlock.Shape( ID_TOP_FACE )); // the 3D SHAPE
1906 int topFaceID = meshDS->ShapeToIndex( topFace );
1908 SMESH_MesherHelper botHelper( *myHelper->GetMesh() );
1909 botHelper.SetSubShape( botFace );
1910 botHelper.ToFixNodeParameters( true );
1912 SMESH_MesherHelper topHelper( *myHelper->GetMesh() );
1913 topHelper.SetSubShape( topFace );
1914 topHelper.ToFixNodeParameters( true );
1915 double distXYZ[4], fixTol = 10 * topHelper.MaxTolerance( topFace );
1917 // Fill myBotToColumnMap
1919 int zSize = myBlock.VerticalSize();
1920 Prism_3D::TNode prevTNode;
1921 SMDS_NodeIteratorPtr nIt = botSMDS->GetNodes();
1922 while ( nIt->more() )
1924 const SMDS_MeshNode* botNode = nIt->next();
1925 const SMDS_MeshNode* topNode = 0;
1926 if ( botNode->GetPosition()->GetTypeOfPosition() != SMDS_TOP_FACE )
1927 continue; // strange
1929 Prism_3D::TNode bN( botNode );
1930 if ( bottomToTopTrsf.Form() == gp_Identity )
1932 // compute bottom node params
1933 gp_XYZ paramHint(-1,-1,-1);
1934 if ( prevTNode.IsNeighbor( bN ))
1936 paramHint = prevTNode.GetParams();
1937 // double tol = 1e-2 * ( prevTNode.GetCoords() - bN.GetCoords() ).Modulus();
1938 // myBlock.SetTolerance( Min( myBlock.GetTolerance(), tol ));
1940 if ( !myBlock.ComputeParameters( bN.GetCoords(), bN.ChangeParams(),
1941 ID_BOT_FACE, paramHint ))
1942 return toSM( error(TCom("Can't compute normalized parameters for node ")
1943 << botNode->GetID() << " on the face #"<< botSM->GetId() ));
1945 // compute top node coords
1946 gp_XYZ topXYZ; gp_XY topUV;
1947 if ( !myBlock.FacePoint( ID_TOP_FACE, bN.GetParams(), topXYZ ) ||
1948 !myBlock.FaceUV ( ID_TOP_FACE, bN.GetParams(), topUV ))
1949 return toSM( error(TCom("Can't compute coordinates "
1950 "by normalized parameters on the face #")<< topSM->GetId() ));
1951 topNode = meshDS->AddNode( topXYZ.X(),topXYZ.Y(),topXYZ.Z() );
1952 meshDS->SetNodeOnFace( topNode, topFaceID, topUV.X(), topUV.Y() );
1954 else // use bottomToTopTrsf
1956 gp_XYZ coords = bN.GetCoords();
1957 bottomToTopTrsf.Transforms( coords );
1958 topNode = meshDS->AddNode( coords.X(), coords.Y(), coords.Z() );
1959 gp_XY topUV = botHelper.GetNodeUV( botFace, botNode, 0, &checkUV );
1960 meshDS->SetNodeOnFace( topNode, topFaceID, topUV.X(), topUV.Y() );
1962 if ( topHelper.CheckNodeUV( topFace, topNode, topUV, fixTol, /*force=*/false, distXYZ ) &&
1963 distXYZ[0] > fixTol && distXYZ[0] < fixTol * 1e+3 )
1964 meshDS->MoveNode( topNode, distXYZ[1], distXYZ[2], distXYZ[3] ); // transform can be inaccurate
1966 // create node column
1967 TNode2ColumnMap::iterator bN_col =
1968 myBotToColumnMap.insert( make_pair ( bN, TNodeColumn() )).first;
1969 TNodeColumn & column = bN_col->second;
1970 column.resize( zSize );
1971 column.front() = botNode;
1972 column.back() = topNode;
1977 const bool oldSetElemsOnShape = myHelper->SetElementsOnShape( false );
1979 // care of orientation;
1980 // if the bottom faces is orienetd OK then top faces must be reversed
1981 bool reverseTop = true;
1982 if ( myHelper->NbAncestors( botFace, *myBlock.Mesh(), TopAbs_SOLID ) > 1 )
1983 reverseTop = ! myHelper->IsReversedSubMesh( botFace );
1984 int iFrw, iRev, *iPtr = &( reverseTop ? iRev : iFrw );
1986 // loop on bottom mesh faces
1987 SMDS_ElemIteratorPtr faceIt = botSMDS->GetElements();
1988 vector< const SMDS_MeshNode* > nodes;
1989 while ( faceIt->more() )
1991 const SMDS_MeshElement* face = faceIt->next();
1992 if ( !face || face->GetType() != SMDSAbs_Face )
1995 // find top node in columns for each bottom node
1996 int nbNodes = face->NbCornerNodes();
1997 nodes.resize( nbNodes );
1998 for ( iFrw = 0, iRev = nbNodes-1; iFrw < nbNodes; ++iFrw, --iRev )
2000 const SMDS_MeshNode* n = face->GetNode( *iPtr );
2001 if ( n->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE ) {
2002 TNode2ColumnMap::iterator bot_column = myBotToColumnMap.find( n );
2003 if ( bot_column == myBotToColumnMap.end() )
2004 return toSM( error(TCom("No nodes found above node ") << n->GetID() ));
2005 nodes[ iFrw ] = bot_column->second.back();
2008 const TNodeColumn* column = myBlock.GetNodeColumn( n );
2010 return toSM( error(TCom("No side nodes found above node ") << n->GetID() ));
2011 nodes[ iFrw ] = column->back();
2014 SMDS_MeshElement* newFace = 0;
2015 switch ( nbNodes ) {
2018 newFace = myHelper->AddFace(nodes[0], nodes[1], nodes[2]);
2022 newFace = myHelper->AddFace( nodes[0], nodes[1], nodes[2], nodes[3] );
2026 newFace = meshDS->AddPolygonalFace( nodes );
2029 meshDS->SetMeshElementOnShape( newFace, topFaceID );
2032 myHelper->SetElementsOnShape( oldSetElemsOnShape );
2037 //=======================================================================
2038 //function : project2dMesh
2039 //purpose : Project mesh faces from a source FACE of one prism (theSrcFace)
2040 // to a source FACE of another prism (theTgtFace)
2041 //=======================================================================
2043 bool StdMeshers_Prism_3D::project2dMesh(const TopoDS_Face& theSrcFace,
2044 const TopoDS_Face& theTgtFace)
2046 TProjction2dAlgo* projector2D = TProjction2dAlgo::instance( this );
2047 projector2D->myHyp.SetSourceFace( theSrcFace );
2048 bool ok = projector2D->Compute( *myHelper->GetMesh(), theTgtFace );
2050 SMESH_subMesh* tgtSM = myHelper->GetMesh()->GetSubMesh( theTgtFace );
2051 tgtSM->ComputeStateEngine ( SMESH_subMesh::CHECK_COMPUTE_STATE );
2052 tgtSM->ComputeSubMeshStateEngine( SMESH_subMesh::CHECK_COMPUTE_STATE );
2057 //================================================================================
2059 * \brief Set projection coordinates of a node to a face and it's sub-shapes
2060 * \param faceID - the face given by in-block ID
2061 * \param params - node normalized parameters
2062 * \retval bool - is a success
2064 //================================================================================
2066 bool StdMeshers_Prism_3D::setFaceAndEdgesXYZ( const int faceID, const gp_XYZ& params, int z )
2068 // find base and top edges of the face
2069 enum { BASE = 0, TOP, LEFT, RIGHT };
2070 vector< int > edgeVec; // 0-base, 1-top
2071 SMESH_Block::GetFaceEdgesIDs( faceID, edgeVec );
2073 myBlock.EdgePoint( edgeVec[ BASE ], params, myShapeXYZ[ edgeVec[ BASE ]]);
2074 myBlock.EdgePoint( edgeVec[ TOP ], params, myShapeXYZ[ edgeVec[ TOP ]]);
2076 SHOWYXZ("\nparams ", params);
2077 SHOWYXZ("TOP is " <<edgeVec[ TOP ], myShapeXYZ[ edgeVec[ TOP]]);
2078 SHOWYXZ("BASE is "<<edgeVec[ BASE], myShapeXYZ[ edgeVec[ BASE]]);
2080 if ( faceID == SMESH_Block::ID_Fx0z || faceID == SMESH_Block::ID_Fx1z )
2082 myBlock.EdgePoint( edgeVec[ LEFT ], params, myShapeXYZ[ edgeVec[ LEFT ]]);
2083 myBlock.EdgePoint( edgeVec[ RIGHT ], params, myShapeXYZ[ edgeVec[ RIGHT ]]);
2085 SHOWYXZ("VER "<<edgeVec[ LEFT], myShapeXYZ[ edgeVec[ LEFT]]);
2086 SHOWYXZ("VER "<<edgeVec[ RIGHT], myShapeXYZ[ edgeVec[ RIGHT]]);
2088 myBlock.FacePoint( faceID, params, myShapeXYZ[ faceID ]);
2089 SHOWYXZ("FacePoint "<<faceID, myShapeXYZ[ faceID]);
2094 //=======================================================================
2096 //purpose : If (!isOK), sets the error to a sub-mesh of a current SOLID
2097 //=======================================================================
2099 bool StdMeshers_Prism_3D::toSM( bool isOK )
2101 if ( mySetErrorToSM &&
2104 !myHelper->GetSubShape().IsNull() &&
2105 myHelper->GetSubShape().ShapeType() == TopAbs_SOLID)
2107 SMESH_subMesh* sm = myHelper->GetMesh()->GetSubMesh( myHelper->GetSubShape() );
2108 sm->GetComputeError() = this->GetComputeError();
2109 // clear error in order not to return it twice
2110 _error = COMPERR_OK;
2116 //=======================================================================
2117 //function : shapeID
2118 //purpose : Return index of a shape
2119 //=======================================================================
2121 int StdMeshers_Prism_3D::shapeID( const TopoDS_Shape& S )
2123 if ( S.IsNull() ) return 0;
2124 if ( !myHelper ) return -3;
2125 return myHelper->GetMeshDS()->ShapeToIndex( S );
2128 namespace // utils used by StdMeshers_Prism_3D::IsApplicable()
2130 struct EdgeWithNeighbors
2134 EdgeWithNeighbors(const TopoDS_Edge& E, int iE, int nbE, int shift = 0 ):
2136 _iL( SMESH_MesherHelper::WrapIndex( iE-1, nbE ) + shift ),
2137 _iR( SMESH_MesherHelper::WrapIndex( iE+1, nbE ) + shift )
2140 EdgeWithNeighbors() {}
2145 TopTools_IndexedMapOfShape *_faces; // pointer because its copy constructor is private
2146 TopoDS_Edge _topEdge;
2147 vector< EdgeWithNeighbors >*_edges;
2149 vector< bool > _isCheckedEdge;
2150 int _nbCheckedEdges; // nb of EDGEs whose location is defined
2151 PrismSide *_leftSide;
2152 PrismSide *_rightSide;
2153 const TopoDS_Edge& Edge( int i ) const
2155 return (*_edges)[ i ]._edge;
2157 int FindEdge( const TopoDS_Edge& E ) const
2159 for ( size_t i = 0; i < _edges->size(); ++i )
2160 if ( E.IsSame( Edge( i ))) return i;
2164 //--------------------------------------------------------------------------------
2166 * \brief Return ordered edges of a face
2168 bool getEdges( const TopoDS_Face& face,
2169 vector< EdgeWithNeighbors > & edges,
2170 const bool noHolesAllowed)
2172 list< TopoDS_Edge > ee;
2173 list< int > nbEdgesInWires;
2174 int nbW = SMESH_Block::GetOrderedEdges( face, ee, nbEdgesInWires );
2175 if ( nbW > 1 && noHolesAllowed )
2179 list< TopoDS_Edge >::iterator e = ee.begin();
2180 list< int >::iterator nbE = nbEdgesInWires.begin();
2181 for ( ; nbE != nbEdgesInWires.end(); ++nbE )
2182 for ( iE = 0; iE < *nbE; ++e, ++iE )
2183 if ( SMESH_Algo::isDegenerated( *e ))
2191 e->Orientation( TopAbs_FORWARD ); // for operator==() to work
2196 for ( nbE = nbEdgesInWires.begin(); nbE != nbEdgesInWires.end(); ++nbE )
2198 for ( iE = 0; iE < *nbE; ++e, ++iE )
2199 edges.push_back( EdgeWithNeighbors( *e, iE, *nbE, nbTot ));
2202 return edges.size();
2204 //--------------------------------------------------------------------------------
2206 * \brief Return another faces sharing an edge
2208 const TopoDS_Shape & getAnotherFace( const TopoDS_Face& face,
2209 const TopoDS_Edge& edge,
2210 TopTools_IndexedDataMapOfShapeListOfShape& facesOfEdge)
2212 TopTools_ListIteratorOfListOfShape faceIt( facesOfEdge.FindFromKey( edge ));
2213 for ( ; faceIt.More(); faceIt.Next() )
2214 if ( !face.IsSame( faceIt.Value() ))
2215 return faceIt.Value();
2220 //================================================================================
2222 * \brief Return true if the algorithm can mesh this shape
2223 * \param [in] aShape - shape to check
2224 * \param [in] toCheckAll - if true, this check returns OK if all shapes are OK,
2225 * else, returns OK if at least one shape is OK
2227 //================================================================================
2229 bool StdMeshers_Prism_3D::IsApplicable(const TopoDS_Shape & shape, bool toCheckAll)
2231 TopExp_Explorer sExp( shape, TopAbs_SOLID );
2235 for ( ; sExp.More(); sExp.Next() )
2239 TopExp_Explorer shExp( sExp.Current(), TopAbs_SHELL );
2240 if ( shExp.More() ) {
2241 shell = shExp.Current();
2246 if ( shell.IsNull() ) {
2247 if ( toCheckAll ) return false;
2251 TopTools_IndexedMapOfShape allFaces;
2252 TopExp::MapShapes( shell, TopAbs_FACE, allFaces );
2253 if ( allFaces.Extent() < 3 ) {
2254 if ( toCheckAll ) return false;
2258 if ( allFaces.Extent() == 6 )
2260 TopTools_IndexedMapOfOrientedShape map;
2261 bool isBox = SMESH_Block::FindBlockShapes( TopoDS::Shell( shell ),
2262 TopoDS_Vertex(), TopoDS_Vertex(), map );
2264 if ( !toCheckAll ) return true;
2269 TopTools_IndexedMapOfShape allShapes;
2270 TopExp::MapShapes( shape, allShapes );
2273 TopTools_IndexedDataMapOfShapeListOfShape facesOfEdge;
2274 TopTools_ListIteratorOfListOfShape faceIt;
2275 TopExp::MapShapesAndAncestors( sExp.Current(), TopAbs_EDGE, TopAbs_FACE , facesOfEdge );
2276 if ( facesOfEdge.IsEmpty() ) {
2277 if ( toCheckAll ) return false;
2281 typedef vector< EdgeWithNeighbors > TEdgeWithNeighborsVec;
2282 vector< TEdgeWithNeighborsVec > faceEdgesVec( allFaces.Extent() + 1 );
2283 TopTools_IndexedMapOfShape* facesOfSide = new TopTools_IndexedMapOfShape[ faceEdgesVec.size() ];
2284 SMESHUtils::ArrayDeleter<TopTools_IndexedMapOfShape> delFacesOfSide( facesOfSide );
2286 // try to use each face as a bottom one
2287 bool prismDetected = false;
2288 for ( int iF = 1; iF < allFaces.Extent() && !prismDetected; ++iF )
2290 const TopoDS_Face& botF = TopoDS::Face( allFaces( iF ));
2292 TEdgeWithNeighborsVec& botEdges = faceEdgesVec[ iF ];
2293 if ( botEdges.empty() )
2295 if ( !getEdges( botF, botEdges, /*noHoles=*/false ))
2297 if ( allFaces.Extent()-1 <= (int) botEdges.size() )
2298 continue; // all faces are adjacent to botF - no top FACE
2300 // init data of side FACEs
2301 vector< PrismSide > sides( botEdges.size() );
2302 for ( int iS = 0; iS < botEdges.size(); ++iS )
2304 sides[ iS ]._topEdge = botEdges[ iS ]._edge;
2305 sides[ iS ]._face = botF;
2306 sides[ iS ]._leftSide = & sides[ botEdges[ iS ]._iR ];
2307 sides[ iS ]._rightSide = & sides[ botEdges[ iS ]._iL ];
2308 sides[ iS ]._faces = & facesOfSide[ iS ];
2309 sides[ iS ]._faces->Clear();
2312 bool isOK = true; // ok for a current botF
2313 bool isAdvanced = true;
2314 int nbFoundSideFaces = 0;
2315 for ( int iLoop = 0; isOK && isAdvanced; ++iLoop )
2318 for ( size_t iS = 0; iS < sides.size() && isOK; ++iS )
2320 PrismSide& side = sides[ iS ];
2321 if ( side._face.IsNull() )
2323 if ( side._topEdge.IsNull() )
2325 // find vertical EDGEs --- EGDEs shared with neighbor side FACEs
2326 for ( int is2nd = 0; is2nd < 2 && isOK; ++is2nd ) // 2 adjacent neighbors
2328 int di = is2nd ? 1 : -1;
2329 const PrismSide* adjSide = is2nd ? side._rightSide : side._leftSide;
2330 for ( size_t i = 1; i < side._edges->size(); ++i )
2332 int iE = SMESH_MesherHelper::WrapIndex( i*di + side._iBotEdge, side._edges->size());
2333 if ( side._isCheckedEdge[ iE ] ) continue;
2334 const TopoDS_Edge& vertE = side.Edge( iE );
2335 const TopoDS_Shape& neighborF = getAnotherFace( side._face, vertE, facesOfEdge );
2336 bool isEdgeShared = adjSide->_faces->Contains( neighborF );
2340 side._isCheckedEdge[ iE ] = true;
2341 side._nbCheckedEdges++;
2342 int nbNotCheckedE = side._edges->size() - side._nbCheckedEdges;
2343 if ( nbNotCheckedE == 1 )
2348 if ( i == 1 && iLoop == 0 ) isOK = false;
2354 int nbNotCheckedE = side._edges->size() - side._nbCheckedEdges;
2355 if ( nbNotCheckedE == 1 )
2357 vector<bool>::iterator ii = std::find( side._isCheckedEdge.begin(),
2358 side._isCheckedEdge.end(), false );
2359 if ( ii != side._isCheckedEdge.end() )
2361 size_t iE = std::distance( side._isCheckedEdge.begin(), ii );
2362 side._topEdge = side.Edge( iE );
2365 isOK = ( nbNotCheckedE >= 1 );
2367 else //if ( !side._topEdge.IsNull() )
2369 // get a next face of a side
2370 const TopoDS_Shape& f = getAnotherFace( side._face, side._topEdge, facesOfEdge );
2371 side._faces->Add( f );
2373 if ( f.IsSame( side._face ) || // _topEdge is a seam
2374 SMESH_MesherHelper::Count( f, TopAbs_WIRE, false ) != 1 )
2378 else if ( side._leftSide != & side ) // not closed side face
2380 if ( side._leftSide->_faces->Contains( f ))
2383 side._leftSide->_face.Nullify();
2384 side._leftSide->_topEdge.Nullify();
2386 if ( side._rightSide->_faces->Contains( f ))
2389 side._rightSide->_face.Nullify();
2390 side._rightSide->_topEdge.Nullify();
2395 side._face.Nullify();
2396 side._topEdge.Nullify();
2399 side._face = TopoDS::Face( f );
2400 int faceID = allFaces.FindIndex( side._face );
2401 side._edges = & faceEdgesVec[ faceID ];
2402 if ( side._edges->empty() )
2403 if ( !getEdges( side._face, * side._edges, /*noHoles=*/true ))
2405 const int nbE = side._edges->size();
2410 side._iBotEdge = side.FindEdge( side._topEdge );
2411 side._isCheckedEdge.clear();
2412 side._isCheckedEdge.resize( nbE, false );
2413 side._isCheckedEdge[ side._iBotEdge ] = true;
2414 side._nbCheckedEdges = 1; // bottom EDGE is known
2416 side._topEdge.Nullify();
2417 isOK = ( !side._edges->empty() || side._faces->Extent() > 1 );
2419 } //if ( !side._topEdge.IsNull() )
2421 } // loop on prism sides
2423 if ( nbFoundSideFaces > allFaces.Extent() )
2427 if ( iLoop > allFaces.Extent() * 10 )
2431 cerr << "BUG: infinite loop in StdMeshers_Prism_3D::IsApplicable()" << endl;
2434 } // while isAdvanced
2436 if ( isOK && sides[0]._faces->Extent() > 1 )
2438 const int nbFaces = sides[0]._faces->Extent();
2439 if ( botEdges.size() == 1 ) // cylinder
2441 prismDetected = ( nbFaces == allFaces.Extent()-1 );
2445 const TopoDS_Shape& topFace = sides[0]._faces->FindKey( nbFaces );
2447 for ( iS = 1; iS < sides.size(); ++iS )
2448 if ( !sides[ iS ]._faces->Contains( topFace ))
2450 prismDetected = ( iS == sides.size() );
2453 } // loop on allFaces
2455 if ( !prismDetected && toCheckAll ) return false;
2456 if ( prismDetected && !toCheckAll ) return true;
2465 //================================================================================
2467 * \brief Return true if this node and other one belong to one face
2469 //================================================================================
2471 bool Prism_3D::TNode::IsNeighbor( const Prism_3D::TNode& other ) const
2473 if ( !other.myNode || !myNode ) return false;
2475 SMDS_ElemIteratorPtr fIt = other.myNode->GetInverseElementIterator(SMDSAbs_Face);
2476 while ( fIt->more() )
2477 if ( fIt->next()->GetNodeIndex( myNode ) >= 0 )
2482 //================================================================================
2484 * \brief Prism initialization
2486 //================================================================================
2488 void TPrismTopo::Clear()
2490 myShape3D.Nullify();
2493 myWallQuads.clear();
2494 myBottomEdges.clear();
2495 myNbEdgesInWires.clear();
2496 myWallQuads.clear();
2499 } // namespace Prism_3D
2501 //================================================================================
2503 * \brief Constructor. Initialization is needed
2505 //================================================================================
2507 StdMeshers_PrismAsBlock::StdMeshers_PrismAsBlock()
2512 StdMeshers_PrismAsBlock::~StdMeshers_PrismAsBlock()
2516 void StdMeshers_PrismAsBlock::Clear()
2519 myShapeIDMap.Clear();
2523 delete mySide; mySide = 0;
2525 myParam2ColumnMaps.clear();
2526 myShapeIndex2ColumnMap.clear();
2529 //=======================================================================
2530 //function : initPrism
2531 //purpose : Analyse shape geometry and mesh.
2532 // If there are triangles on one of faces, it becomes 'bottom'.
2533 // thePrism.myBottom can be already set up.
2534 //=======================================================================
2536 bool StdMeshers_Prism_3D::initPrism(Prism_3D::TPrismTopo& thePrism,
2537 const TopoDS_Shape& shape3D)
2539 myHelper->SetSubShape( shape3D );
2541 SMESH_subMesh* mainSubMesh = myHelper->GetMesh()->GetSubMeshContaining( shape3D );
2542 if ( !mainSubMesh ) return toSM( error(COMPERR_BAD_INPUT_MESH,"Null submesh of shape3D"));
2544 // detect not-quad FACE sub-meshes of the 3D SHAPE
2545 list< SMESH_subMesh* > notQuadGeomSubMesh;
2546 list< SMESH_subMesh* > notQuadElemSubMesh;
2549 SMESH_subMesh* anyFaceSM = 0;
2550 SMESH_subMeshIteratorPtr smIt = mainSubMesh->getDependsOnIterator(false,true);
2551 while ( smIt->more() )
2553 SMESH_subMesh* sm = smIt->next();
2554 const TopoDS_Shape& face = sm->GetSubShape();
2555 if ( face.ShapeType() > TopAbs_FACE ) break;
2556 else if ( face.ShapeType() < TopAbs_FACE ) continue;
2560 // is quadrangle FACE?
2561 list< TopoDS_Edge > orderedEdges;
2562 list< int > nbEdgesInWires;
2563 int nbWires = SMESH_Block::GetOrderedEdges( TopoDS::Face( face ), orderedEdges,
2565 if ( nbWires != 1 || nbEdgesInWires.front() != 4 )
2566 notQuadGeomSubMesh.push_back( sm );
2568 // look for not quadrangle mesh elements
2569 if ( SMESHDS_SubMesh* smDS = sm->GetSubMeshDS() )
2570 if ( !myHelper->IsSameElemGeometry( smDS, SMDSGeom_QUADRANGLE ))
2571 notQuadElemSubMesh.push_back( sm );
2574 int nbNotQuadMeshed = notQuadElemSubMesh.size();
2575 int nbNotQuad = notQuadGeomSubMesh.size();
2576 bool hasNotQuad = ( nbNotQuad || nbNotQuadMeshed );
2579 if ( nbNotQuadMeshed > 2 )
2581 return toSM( error(COMPERR_BAD_INPUT_MESH,
2582 TCom("More than 2 faces with not quadrangle elements: ")
2583 <<nbNotQuadMeshed));
2585 if ( nbNotQuad > 2 || !thePrism.myBottom.IsNull() )
2587 // Issue 0020843 - one of side FACEs is quasi-quadrilateral (not 4 EDGEs).
2588 // Remove from notQuadGeomSubMesh faces meshed with regular grid
2589 int nbQuasiQuads = removeQuasiQuads( notQuadGeomSubMesh, myHelper,
2590 TQuadrangleAlgo::instance(this,myHelper) );
2591 nbNotQuad -= nbQuasiQuads;
2592 if ( nbNotQuad > 2 )
2593 return toSM( error(COMPERR_BAD_SHAPE,
2594 TCom("More than 2 not quadrilateral faces: ") <<nbNotQuad));
2595 hasNotQuad = ( nbNotQuad || nbNotQuadMeshed );
2598 // Analyse mesh and topology of FACEs: choose the bottom sub-mesh.
2599 // If there are not quadrangle FACEs, they are top and bottom ones.
2600 // Not quadrangle FACEs must be only on top and bottom.
2602 SMESH_subMesh * botSM = 0;
2603 SMESH_subMesh * topSM = 0;
2605 if ( hasNotQuad ) // can chose a bottom FACE
2607 if ( nbNotQuadMeshed > 0 ) botSM = notQuadElemSubMesh.front();
2608 else botSM = notQuadGeomSubMesh.front();
2609 if ( nbNotQuadMeshed > 1 ) topSM = notQuadElemSubMesh.back();
2610 else if ( nbNotQuad > 1 ) topSM = notQuadGeomSubMesh.back();
2612 if ( topSM == botSM ) {
2613 if ( nbNotQuadMeshed > 1 ) topSM = notQuadElemSubMesh.front();
2614 else topSM = notQuadGeomSubMesh.front();
2617 // detect mesh triangles on wall FACEs
2618 if ( nbNotQuad == 2 && nbNotQuadMeshed > 0 ) {
2620 if ( nbNotQuadMeshed == 1 )
2621 ok = ( find( notQuadGeomSubMesh.begin(),
2622 notQuadGeomSubMesh.end(), botSM ) != notQuadGeomSubMesh.end() );
2624 ok = ( notQuadGeomSubMesh == notQuadElemSubMesh );
2626 return toSM( error(COMPERR_BAD_INPUT_MESH,
2627 "Side face meshed with not quadrangle elements"));
2631 thePrism.myNotQuadOnTop = ( nbNotQuadMeshed > 1 );
2633 // use thePrism.myBottom
2634 if ( !thePrism.myBottom.IsNull() )
2637 if ( ! botSM->GetSubShape().IsSame( thePrism.myBottom )) {
2638 std::swap( botSM, topSM );
2639 if ( !botSM || ! botSM->GetSubShape().IsSame( thePrism.myBottom ))
2640 return toSM( error( COMPERR_BAD_INPUT_MESH,
2641 "Incompatible non-structured sub-meshes"));
2645 botSM = myHelper->GetMesh()->GetSubMesh( thePrism.myBottom );
2648 else if ( !botSM ) // find a proper bottom
2650 // composite walls or not prism shape
2651 for ( TopExp_Explorer f( shape3D, TopAbs_FACE ); f.More(); f.Next() )
2653 int minNbFaces = 2 + myHelper->Count( f.Current(), TopAbs_EDGE, false);
2654 if ( nbFaces >= minNbFaces)
2657 thePrism.myBottom = TopoDS::Face( f.Current() );
2658 if ( initPrism( thePrism, shape3D ))
2661 return toSM( error( COMPERR_BAD_SHAPE ));
2665 // find vertex 000 - the one with smallest coordinates (for easy DEBUG :-)
2667 double minVal = DBL_MAX, minX, val;
2668 for ( TopExp_Explorer exp( botSM->GetSubShape(), TopAbs_VERTEX );
2669 exp.More(); exp.Next() )
2671 const TopoDS_Vertex& v = TopoDS::Vertex( exp.Current() );
2672 gp_Pnt P = BRep_Tool::Pnt( v );
2673 val = P.X() + P.Y() + P.Z();
2674 if ( val < minVal || ( val == minVal && P.X() < minX )) {
2681 thePrism.myShape3D = shape3D;
2682 if ( thePrism.myBottom.IsNull() )
2683 thePrism.myBottom = TopoDS::Face( botSM->GetSubShape() );
2684 thePrism.myBottom.Orientation( myHelper->GetSubShapeOri( shape3D,
2685 thePrism.myBottom ));
2686 // Get ordered bottom edges
2687 TopoDS_Face reverseBottom = // to have order of top EDGEs as in the top FACE
2688 TopoDS::Face( thePrism.myBottom.Reversed() );
2689 SMESH_Block::GetOrderedEdges( reverseBottom,
2690 thePrism.myBottomEdges,
2691 thePrism.myNbEdgesInWires, V000 );
2693 // Get Wall faces corresponding to the ordered bottom edges and the top FACE
2694 if ( !getWallFaces( thePrism, nbFaces ))
2695 return false; //toSM( error(COMPERR_BAD_SHAPE, "Can't find side faces"));
2699 if ( !thePrism.myTop.IsSame( topSM->GetSubShape() ))
2701 (notQuadGeomSubMesh.empty() ? COMPERR_BAD_INPUT_MESH : COMPERR_BAD_SHAPE,
2702 "Non-quadrilateral faces are not opposite"));
2704 // check that the found top and bottom FACEs are opposite
2705 list< TopoDS_Edge >::iterator edge = thePrism.myBottomEdges.begin();
2706 for ( ; edge != thePrism.myBottomEdges.end(); ++edge )
2707 if ( myHelper->IsSubShape( *edge, thePrism.myTop ))
2709 (notQuadGeomSubMesh.empty() ? COMPERR_BAD_INPUT_MESH : COMPERR_BAD_SHAPE,
2710 "Non-quadrilateral faces are not opposite"));
2716 //================================================================================
2718 * \brief Initialization.
2719 * \param helper - helper loaded with mesh and 3D shape
2720 * \param thePrism - a prism data
2721 * \retval bool - false if a mesh or a shape are KO
2723 //================================================================================
2725 bool StdMeshers_PrismAsBlock::Init(SMESH_MesherHelper* helper,
2726 const Prism_3D::TPrismTopo& thePrism)
2729 SMESHDS_Mesh* meshDS = myHelper->GetMeshDS();
2730 SMESH_Mesh* mesh = myHelper->GetMesh();
2733 delete mySide; mySide = 0;
2735 vector< TSideFace* > sideFaces( NB_WALL_FACES, 0 );
2736 vector< pair< double, double> > params( NB_WALL_FACES );
2737 mySide = new TSideFace( *mesh, sideFaces, params );
2740 SMESH_Block::init();
2741 myShapeIDMap.Clear();
2742 myShapeIndex2ColumnMap.clear();
2744 int wallFaceIds[ NB_WALL_FACES ] = { // to walk around a block
2745 SMESH_Block::ID_Fx0z, SMESH_Block::ID_F1yz,
2746 SMESH_Block::ID_Fx1z, SMESH_Block::ID_F0yz
2749 myError = SMESH_ComputeError::New();
2751 myNotQuadOnTop = thePrism.myNotQuadOnTop;
2753 // Find columns of wall nodes and calculate edges' lengths
2754 // --------------------------------------------------------
2756 myParam2ColumnMaps.clear();
2757 myParam2ColumnMaps.resize( thePrism.myBottomEdges.size() ); // total nb edges
2759 size_t iE, nbEdges = thePrism.myNbEdgesInWires.front(); // nb outer edges
2760 vector< double > edgeLength( nbEdges );
2761 multimap< double, int > len2edgeMap;
2763 // for each EDGE: either split into several parts, or join with several next EDGEs
2764 vector<int> nbSplitPerEdge( nbEdges, 0 );
2765 vector<int> nbUnitePerEdge( nbEdges, 0 ); // -1 means "joined to a previous"
2767 // consider continuous straight EDGEs as one side
2768 const int nbSides = countNbSides( thePrism, nbUnitePerEdge, edgeLength );
2770 list< TopoDS_Edge >::const_iterator edgeIt = thePrism.myBottomEdges.begin();
2771 for ( iE = 0; iE < nbEdges; ++iE, ++edgeIt )
2773 TParam2ColumnMap & faceColumns = myParam2ColumnMaps[ iE ];
2775 Prism_3D::TQuadList::const_iterator quad = thePrism.myWallQuads[ iE ].begin();
2776 for ( ; quad != thePrism.myWallQuads[ iE ].end(); ++quad )
2778 const TopoDS_Edge& quadBot = (*quad)->side[ QUAD_BOTTOM_SIDE ].grid->Edge( 0 );
2779 if ( !myHelper->LoadNodeColumns( faceColumns, (*quad)->face, quadBot, meshDS ))
2780 return error(COMPERR_BAD_INPUT_MESH, TCom("Can't find regular quadrangle mesh ")
2781 << "on a side face #" << MeshDS()->ShapeToIndex( (*quad)->face ));
2783 SHOWYXZ("\np1 F " <<iE, gpXYZ(faceColumns.begin()->second.front() ));
2784 SHOWYXZ("p2 F " <<iE, gpXYZ(faceColumns.rbegin()->second.front() ));
2785 SHOWYXZ("V First "<<iE, BRep_Tool::Pnt( TopExp::FirstVertex(*edgeIt,true )));
2787 if ( nbSides < NB_WALL_FACES ) // fill map used to split faces
2788 len2edgeMap.insert( make_pair( edgeLength[ iE ], iE )); // sort edges by length
2790 // Load columns of internal edges (forming holes)
2791 // and fill map ShapeIndex to TParam2ColumnMap for them
2792 for ( ; edgeIt != thePrism.myBottomEdges.end() ; ++edgeIt, ++iE )
2794 TParam2ColumnMap & faceColumns = myParam2ColumnMaps[ iE ];
2796 Prism_3D::TQuadList::const_iterator quad = thePrism.myWallQuads[ iE ].begin();
2797 for ( ; quad != thePrism.myWallQuads[ iE ].end(); ++quad )
2799 const TopoDS_Edge& quadBot = (*quad)->side[ QUAD_BOTTOM_SIDE ].grid->Edge( 0 );
2800 if ( !myHelper->LoadNodeColumns( faceColumns, (*quad)->face, quadBot, meshDS ))
2801 return error(COMPERR_BAD_INPUT_MESH, TCom("Can't find regular quadrangle mesh ")
2802 << "on a side face #" << MeshDS()->ShapeToIndex( (*quad)->face ));
2805 int id = MeshDS()->ShapeToIndex( *edgeIt );
2806 bool isForward = true; // meaningless for intenal wires
2807 myShapeIndex2ColumnMap[ id ] = make_pair( & faceColumns, isForward );
2808 // columns for vertices
2810 const SMDS_MeshNode* n0 = faceColumns.begin()->second.front();
2811 id = n0->getshapeId();
2812 myShapeIndex2ColumnMap[ id ] = make_pair( & faceColumns, isForward );
2814 const SMDS_MeshNode* n1 = faceColumns.rbegin()->second.front();
2815 id = n1->getshapeId();
2816 myShapeIndex2ColumnMap[ id ] = make_pair( & faceColumns, isForward );
2818 // SHOWYXZ("\np1 F " <<iE, gpXYZ(faceColumns.begin()->second.front() ));
2819 // SHOWYXZ("p2 F " <<iE, gpXYZ(faceColumns.rbegin()->second.front() ));
2820 // SHOWYXZ("V First "<<iE, BRep_Tool::Pnt( TopExp::FirstVertex(*edgeIt,true )));
2823 // Create 4 wall faces of a block
2824 // -------------------------------
2826 if ( nbSides <= NB_WALL_FACES ) // ************* Split faces if necessary
2828 if ( nbSides != NB_WALL_FACES ) // define how to split
2830 if ( len2edgeMap.size() != nbEdges )
2831 RETURN_BAD_RESULT("Uniqueness of edge lengths not assured");
2833 multimap< double, int >::reverse_iterator maxLen_i = len2edgeMap.rbegin();
2834 multimap< double, int >::reverse_iterator midLen_i = ++len2edgeMap.rbegin();
2836 double maxLen = maxLen_i->first;
2837 double midLen = ( len2edgeMap.size() == 1 ) ? 0 : midLen_i->first;
2838 switch ( nbEdges ) {
2839 case 1: // 0-th edge is split into 4 parts
2840 nbSplitPerEdge[ 0 ] = 4;
2842 case 2: // either the longest edge is split into 3 parts, or both edges into halves
2843 if ( maxLen / 3 > midLen / 2 ) {
2844 nbSplitPerEdge[ maxLen_i->second ] = 3;
2847 nbSplitPerEdge[ maxLen_i->second ] = 2;
2848 nbSplitPerEdge[ midLen_i->second ] = 2;
2853 // split longest into 3 parts
2854 nbSplitPerEdge[ maxLen_i->second ] = 3;
2856 // split longest into halves
2857 nbSplitPerEdge[ maxLen_i->second ] = 2;
2861 else // **************************** Unite faces
2863 int nbExraFaces = nbSides - 4; // nb of faces to fuse
2864 for ( iE = 0; iE < nbEdges; ++iE )
2866 if ( nbUnitePerEdge[ iE ] < 0 )
2868 // look for already united faces
2869 for ( int i = iE; i < iE + nbExraFaces; ++i )
2871 if ( nbUnitePerEdge[ i ] > 0 ) // a side including nbUnitePerEdge[i]+1 edge
2872 nbExraFaces += nbUnitePerEdge[ i ];
2873 nbUnitePerEdge[ i ] = -1;
2875 nbUnitePerEdge[ iE ] = nbExraFaces;
2880 // Create TSideFace's
2882 list< TopoDS_Edge >::const_iterator botE = thePrism.myBottomEdges.begin();
2883 for ( iE = 0; iE < nbEdges; ++iE, ++botE )
2885 TFaceQuadStructPtr quad = thePrism.myWallQuads[ iE ].front();
2886 const int nbSplit = nbSplitPerEdge[ iE ];
2887 const int nbExraFaces = nbUnitePerEdge[ iE ] + 1;
2888 if ( nbSplit > 0 ) // split
2890 vector< double > params;
2891 splitParams( nbSplit, &myParam2ColumnMaps[ iE ], params );
2892 const bool isForward =
2893 StdMeshers_PrismAsBlock::IsForwardEdge( myHelper->GetMeshDS(),
2894 myParam2ColumnMaps[iE],
2895 *botE, SMESH_Block::ID_Fx0z );
2896 for ( int i = 0; i < nbSplit; ++i ) {
2897 double f = ( isForward ? params[ i ] : params[ nbSplit - i-1 ]);
2898 double l = ( isForward ? params[ i+1 ] : params[ nbSplit - i ]);
2899 TSideFace* comp = new TSideFace( *mesh, wallFaceIds[ iSide ],
2900 thePrism.myWallQuads[ iE ], *botE,
2901 &myParam2ColumnMaps[ iE ], f, l );
2902 mySide->SetComponent( iSide++, comp );
2905 else if ( nbExraFaces > 1 ) // unite
2907 double u0 = 0, sumLen = 0;
2908 for ( int i = iE; i < iE + nbExraFaces; ++i )
2909 sumLen += edgeLength[ i ];
2911 vector< TSideFace* > components( nbExraFaces );
2912 vector< pair< double, double> > params( nbExraFaces );
2913 bool endReached = false;
2914 for ( int i = 0; i < nbExraFaces; ++i, ++botE, ++iE )
2916 if ( iE == nbEdges )
2919 botE = thePrism.myBottomEdges.begin();
2922 components[ i ] = new TSideFace( *mesh, wallFaceIds[ iSide ],
2923 thePrism.myWallQuads[ iE ], *botE,
2924 &myParam2ColumnMaps[ iE ]);
2925 double u1 = u0 + edgeLength[ iE ] / sumLen;
2926 params[ i ] = make_pair( u0 , u1 );
2929 TSideFace* comp = new TSideFace( *mesh, components, params );
2930 mySide->SetComponent( iSide++, comp );
2933 --iE; // for increment in an external loop on iE
2936 else if ( nbExraFaces < 0 ) // skip already united face
2941 TSideFace* comp = new TSideFace( *mesh, wallFaceIds[ iSide ],
2942 thePrism.myWallQuads[ iE ], *botE,
2943 &myParam2ColumnMaps[ iE ]);
2944 mySide->SetComponent( iSide++, comp );
2949 // Fill geometry fields of SMESH_Block
2950 // ------------------------------------
2952 vector< int > botEdgeIdVec;
2953 SMESH_Block::GetFaceEdgesIDs( ID_BOT_FACE, botEdgeIdVec );
2955 bool isForward[NB_WALL_FACES] = { true, true, true, true };
2956 Adaptor2d_Curve2d* botPcurves[NB_WALL_FACES];
2957 Adaptor2d_Curve2d* topPcurves[NB_WALL_FACES];
2959 for ( int iF = 0; iF < NB_WALL_FACES; ++iF )
2961 TSideFace * sideFace = mySide->GetComponent( iF );
2963 RETURN_BAD_RESULT("NULL TSideFace");
2964 int fID = sideFace->FaceID(); // in-block ID
2966 // fill myShapeIDMap
2967 if ( sideFace->InsertSubShapes( myShapeIDMap ) != 8 &&
2968 !sideFace->IsComplex())
2969 MESSAGE( ": Warning : InsertSubShapes() < 8 on side " << iF );
2971 // side faces geometry
2972 Adaptor2d_Curve2d* pcurves[NB_WALL_FACES];
2973 if ( !sideFace->GetPCurves( pcurves ))
2974 RETURN_BAD_RESULT("TSideFace::GetPCurves() failed");
2976 SMESH_Block::TFace& tFace = myFace[ fID - ID_FirstF ];
2977 tFace.Set( fID, sideFace->Surface(), pcurves, isForward );
2979 SHOWYXZ( endl<<"F "<< iF << " id " << fID << " FRW " << sideFace->IsForward(), sideFace->Value(0,0));
2980 // edges 3D geometry
2981 vector< int > edgeIdVec;
2982 SMESH_Block::GetFaceEdgesIDs( fID, edgeIdVec );
2983 for ( int isMax = 0; isMax < 2; ++isMax ) {
2985 int eID = edgeIdVec[ isMax ];
2986 SMESH_Block::TEdge& tEdge = myEdge[ eID - ID_FirstE ];
2987 tEdge.Set( eID, sideFace->HorizCurve(isMax), true);
2988 SHOWYXZ(eID<<" HOR"<<isMax<<"(0)", sideFace->HorizCurve(isMax)->Value(0));
2989 SHOWYXZ(eID<<" HOR"<<isMax<<"(1)", sideFace->HorizCurve(isMax)->Value(1));
2992 int eID = edgeIdVec[ isMax+2 ];
2993 SMESH_Block::TEdge& tEdge = myEdge[ eID - ID_FirstE ];
2994 tEdge.Set( eID, sideFace->VertiCurve(isMax), true);
2995 SHOWYXZ(eID<<" VER"<<isMax<<"(0)", sideFace->VertiCurve(isMax)->Value(0));
2996 SHOWYXZ(eID<<" VER"<<isMax<<"(1)", sideFace->VertiCurve(isMax)->Value(1));
2999 vector< int > vertexIdVec;
3000 SMESH_Block::GetEdgeVertexIDs( eID, vertexIdVec );
3001 myPnt[ vertexIdVec[0] - ID_FirstV ] = tEdge.GetCurve()->Value(0).XYZ();
3002 myPnt[ vertexIdVec[1] - ID_FirstV ] = tEdge.GetCurve()->Value(1).XYZ();
3005 // pcurves on horizontal faces
3006 for ( iE = 0; iE < NB_WALL_FACES; ++iE ) {
3007 if ( edgeIdVec[ BOTTOM_EDGE ] == botEdgeIdVec[ iE ] ) {
3008 botPcurves[ iE ] = sideFace->HorizPCurve( false, thePrism.myBottom );
3009 topPcurves[ iE ] = sideFace->HorizPCurve( true, thePrism.myTop );
3013 //sideFace->dumpNodes( 4 ); // debug
3015 // horizontal faces geometry
3017 SMESH_Block::TFace& tFace = myFace[ ID_BOT_FACE - ID_FirstF ];
3018 tFace.Set( ID_BOT_FACE, new BRepAdaptor_Surface( thePrism.myBottom ), botPcurves, isForward );
3019 SMESH_Block::Insert( thePrism.myBottom, ID_BOT_FACE, myShapeIDMap );
3022 SMESH_Block::TFace& tFace = myFace[ ID_TOP_FACE - ID_FirstF ];
3023 tFace.Set( ID_TOP_FACE, new BRepAdaptor_Surface( thePrism.myTop ), topPcurves, isForward );
3024 SMESH_Block::Insert( thePrism.myTop, ID_TOP_FACE, myShapeIDMap );
3026 //faceGridToPythonDump( SMESH_Block::ID_Fxy0, 50 );
3027 //faceGridToPythonDump( SMESH_Block::ID_Fxy1 );
3029 // Fill map ShapeIndex to TParam2ColumnMap
3030 // ----------------------------------------
3032 list< TSideFace* > fList;
3033 list< TSideFace* >::iterator fListIt;
3034 fList.push_back( mySide );
3035 for ( fListIt = fList.begin(); fListIt != fList.end(); ++fListIt)
3037 int nb = (*fListIt)->NbComponents();
3038 for ( int i = 0; i < nb; ++i ) {
3039 if ( TSideFace* comp = (*fListIt)->GetComponent( i ))
3040 fList.push_back( comp );
3042 if ( TParam2ColumnMap* cols = (*fListIt)->GetColumns()) {
3043 // columns for a base edge
3044 int id = MeshDS()->ShapeToIndex( (*fListIt)->BaseEdge() );
3045 bool isForward = (*fListIt)->IsForward();
3046 myShapeIndex2ColumnMap[ id ] = make_pair( cols, isForward );
3048 // columns for vertices
3049 const SMDS_MeshNode* n0 = cols->begin()->second.front();
3050 id = n0->getshapeId();
3051 myShapeIndex2ColumnMap[ id ] = make_pair( cols, isForward );
3053 const SMDS_MeshNode* n1 = cols->rbegin()->second.front();
3054 id = n1->getshapeId();
3055 myShapeIndex2ColumnMap[ id ] = make_pair( cols, !isForward );
3059 // #define SHOWYXZ(msg, xyz) { \
3060 // gp_Pnt p (xyz); \
3061 // cout << msg << " ("<< p.X() << "; " <<p.Y() << "; " <<p.Z() << ") " <<endl; \
3063 // double _u[]={ 0.1, 0.1, 0.9, 0.9 };
3064 // double _v[]={ 0.1, 0.9, 0.1, 0.9 };
3065 // for ( int z = 0; z < 2; ++z )
3066 // for ( int i = 0; i < 4; ++i )
3068 // //gp_XYZ testPar(0.25, 0.25, 0), testCoord;
3069 // int iFace = (z ? ID_TOP_FACE : ID_BOT_FACE);
3070 // gp_XYZ testPar(_u[i], _v[i], z), testCoord;
3071 // if ( !FacePoint( iFace, testPar, testCoord ))
3072 // RETURN_BAD_RESULT("TEST FacePoint() FAILED");
3073 // SHOWYXZ("IN TEST PARAM" , testPar);
3074 // SHOWYXZ("OUT TEST CORD" , testCoord);
3075 // if ( !ComputeParameters( testCoord, testPar , iFace))
3076 // RETURN_BAD_RESULT("TEST ComputeParameters() FAILED");
3077 // SHOWYXZ("OUT TEST PARAM" , testPar);
3082 //================================================================================
3084 * \brief Return pointer to column of nodes
3085 * \param node - bottom node from which the returned column goes up
3086 * \retval const TNodeColumn* - the found column
3088 //================================================================================
3090 const TNodeColumn* StdMeshers_PrismAsBlock::GetNodeColumn(const SMDS_MeshNode* node) const
3092 int sID = node->getshapeId();
3094 map<int, pair< TParam2ColumnMap*, bool > >::const_iterator col_frw =
3095 myShapeIndex2ColumnMap.find( sID );
3096 if ( col_frw != myShapeIndex2ColumnMap.end() ) {
3097 const TParam2ColumnMap* cols = col_frw->second.first;
3098 TParam2ColumnIt u_col = cols->begin();
3099 for ( ; u_col != cols->end(); ++u_col )
3100 if ( u_col->second[ 0 ] == node )
3101 return & u_col->second;
3106 //=======================================================================
3107 //function : GetLayersTransformation
3108 //purpose : Return transformations to get coordinates of nodes of each layer
3109 // by nodes of the bottom. Layer is a set of nodes at a certain step
3110 // from bottom to top.
3111 // Transformation to get top node from bottom ones is computed
3112 // only if the top FACE is not meshed.
3113 //=======================================================================
3115 bool StdMeshers_PrismAsBlock::GetLayersTransformation(vector<gp_Trsf> & trsf,
3116 const Prism_3D::TPrismTopo& prism) const
3118 const bool itTopMeshed = !SubMesh( ID_BOT_FACE )->IsEmpty();
3119 const int zSize = VerticalSize();
3120 if ( zSize < 3 && !itTopMeshed ) return true;
3121 trsf.resize( zSize - 1 );
3123 // Select some node columns by which we will define coordinate system of layers
3125 vector< const TNodeColumn* > columns;
3128 list< TopoDS_Edge >::const_iterator edgeIt = prism.myBottomEdges.begin();
3129 for ( int iE = 0; iE < prism.myNbEdgesInWires.front(); ++iE, ++edgeIt )
3131 if ( SMESH_Algo::isDegenerated( *edgeIt )) continue;
3132 const TParam2ColumnMap* u2colMap =
3133 GetParam2ColumnMap( MeshDS()->ShapeToIndex( *edgeIt ), isReverse );
3134 if ( !u2colMap ) return false;
3135 double f = u2colMap->begin()->first, l = u2colMap->rbegin()->first;
3136 //isReverse = ( edgeIt->Orientation() == TopAbs_REVERSED );
3137 //if ( isReverse ) swap ( f, l ); -- u2colMap takes orientation into account
3138 const int nbCol = 5;
3139 for ( int i = 0; i < nbCol; ++i )
3141 double u = f + i/double(nbCol) * ( l - f );
3142 const TNodeColumn* col = & getColumn( u2colMap, u )->second;
3143 if ( columns.empty() || col != columns.back() )
3144 columns.push_back( col );
3149 // Find tolerance to check transformations
3154 for ( int i = 0; i < columns.size(); ++i )
3155 bndBox.Add( gpXYZ( columns[i]->front() ));
3156 tol2 = bndBox.SquareExtent() * 1e-5;
3159 // Compute transformations
3162 gp_Trsf fromCsZ, toCs0;
3163 gp_Ax3 cs0 = getLayerCoordSys(0, columns, xCol );
3164 //double dist0 = cs0.Location().Distance( gpXYZ( (*columns[0])[0]));
3165 toCs0.SetTransformation( cs0 );
3166 for ( int z = 1; z < zSize; ++z )
3168 gp_Ax3 csZ = getLayerCoordSys(z, columns, xCol );
3169 //double distZ = csZ.Location().Distance( gpXYZ( (*columns[0])[z]));
3170 fromCsZ.SetTransformation( csZ );
3172 gp_Trsf& t = trsf[ z-1 ];
3173 t = fromCsZ * toCs0;
3174 //t.SetScaleFactor( distZ/dist0 ); - it does not work properly, wrong base point
3176 // check a transformation
3177 for ( int i = 0; i < columns.size(); ++i )
3179 gp_Pnt p0 = gpXYZ( (*columns[i])[0] );
3180 gp_Pnt pz = gpXYZ( (*columns[i])[z] );
3181 t.Transforms( p0.ChangeCoord() );
3182 if ( p0.SquareDistance( pz ) > tol2 )
3185 return ( z == zSize - 1 ); // OK if fails only botton->top trsf
3192 //================================================================================
3194 * \brief Check curve orientation of a bootom edge
3195 * \param meshDS - mesh DS
3196 * \param columnsMap - node columns map of side face
3197 * \param bottomEdge - the bootom edge
3198 * \param sideFaceID - side face in-block ID
3199 * \retval bool - true if orientation coinside with in-block forward orientation
3201 //================================================================================
3203 bool StdMeshers_PrismAsBlock::IsForwardEdge(SMESHDS_Mesh* meshDS,
3204 const TParam2ColumnMap& columnsMap,
3205 const TopoDS_Edge & bottomEdge,
3206 const int sideFaceID)
3208 bool isForward = false;
3209 if ( SMESH_MesherHelper::IsClosedEdge( bottomEdge ))
3211 isForward = ( bottomEdge.Orientation() == TopAbs_FORWARD );
3215 const TNodeColumn& firstCol = columnsMap.begin()->second;
3216 const SMDS_MeshNode* bottomNode = firstCol[0];
3217 TopoDS_Shape firstVertex = SMESH_MesherHelper::GetSubShapeByNode( bottomNode, meshDS );
3218 isForward = ( firstVertex.IsSame( TopExp::FirstVertex( bottomEdge, true )));
3220 // on 2 of 4 sides first vertex is end
3221 if ( sideFaceID == ID_Fx1z || sideFaceID == ID_F0yz )
3222 isForward = !isForward;
3226 //=======================================================================
3227 //function : faceGridToPythonDump
3228 //purpose : Prints a script creating a normal grid on the prism side
3229 //=======================================================================
3231 void StdMeshers_PrismAsBlock::faceGridToPythonDump(const SMESH_Block::TShapeID face,
3235 gp_XYZ pOnF[6] = { gp_XYZ(0,0,0), gp_XYZ(0,0,1),
3236 gp_XYZ(0,0,0), gp_XYZ(0,1,0),
3237 gp_XYZ(0,0,0), gp_XYZ(1,0,0) };
3239 cout << "mesh = smesh.Mesh( 'Face " << face << "')" << endl;
3240 SMESH_Block::TFace& f = myFace[ face - ID_FirstF ];
3241 gp_XYZ params = pOnF[ face - ID_FirstF ];
3242 //const int nb = 10; // nb face rows
3243 for ( int j = 0; j <= nb; ++j )
3245 params.SetCoord( f.GetVInd(), double( j )/ nb );
3246 for ( int i = 0; i <= nb; ++i )
3248 params.SetCoord( f.GetUInd(), double( i )/ nb );
3249 gp_XYZ p = f.Point( params );
3250 gp_XY uv = f.GetUV( params );
3251 cout << "mesh.AddNode( " << p.X() << ", " << p.Y() << ", " << p.Z() << " )"
3252 << " # " << 1 + i + j * ( nb + 1 )
3253 << " ( " << i << ", " << j << " ) "
3254 << " UV( " << uv.X() << ", " << uv.Y() << " )" << endl;
3255 ShellPoint( params, p2 );
3256 double dist = ( p2 - p ).Modulus();
3258 cout << "#### dist from ShellPoint " << dist
3259 << " (" << p2.X() << ", " << p2.Y() << ", " << p2.Z() << " ) " << endl;
3262 for ( int j = 0; j < nb; ++j )
3263 for ( int i = 0; i < nb; ++i )
3265 int n = 1 + i + j * ( nb + 1 );
3266 cout << "mesh.AddFace([ "
3267 << n << ", " << n+1 << ", "
3268 << n+nb+2 << ", " << n+nb+1 << "]) " << endl;
3274 //================================================================================
3276 * \brief Constructor
3277 * \param faceID - in-block ID
3278 * \param face - geom FACE
3279 * \param baseEdge - EDGE proreply oriented in the bottom EDGE !!!
3280 * \param columnsMap - map of node columns
3281 * \param first - first normalized param
3282 * \param last - last normalized param
3284 //================================================================================
3286 StdMeshers_PrismAsBlock::TSideFace::TSideFace(SMESH_Mesh& mesh,
3288 const Prism_3D::TQuadList& quadList,
3289 const TopoDS_Edge& baseEdge,
3290 TParam2ColumnMap* columnsMap,
3294 myParamToColumnMap( columnsMap ),
3297 myParams.resize( 1 );
3298 myParams[ 0 ] = make_pair( first, last );
3299 mySurface = PSurface( new BRepAdaptor_Surface( quadList.front()->face ));
3300 myBaseEdge = baseEdge;
3301 myIsForward = StdMeshers_PrismAsBlock::IsForwardEdge( myHelper.GetMeshDS(),
3302 *myParamToColumnMap,
3304 myHelper.SetSubShape( quadList.front()->face );
3306 if ( quadList.size() > 1 ) // side is vertically composite
3308 // fill myShapeID2Surf map to enable finding a right surface by any sub-shape ID
3310 SMESHDS_Mesh* meshDS = myHelper.GetMeshDS();
3312 TopTools_IndexedDataMapOfShapeListOfShape subToFaces;
3313 Prism_3D::TQuadList::const_iterator quad = quadList.begin();
3314 for ( ; quad != quadList.end(); ++quad )
3316 const TopoDS_Face& face = (*quad)->face;
3317 TopExp::MapShapesAndAncestors( face, TopAbs_VERTEX, TopAbs_FACE, subToFaces );
3318 TopExp::MapShapesAndAncestors( face, TopAbs_EDGE, TopAbs_FACE, subToFaces );
3319 myShapeID2Surf.insert( make_pair( meshDS->ShapeToIndex( face ),
3320 PSurface( new BRepAdaptor_Surface( face ))));
3322 for ( int i = 1; i <= subToFaces.Extent(); ++i )
3324 const TopoDS_Shape& sub = subToFaces.FindKey( i );
3325 TopTools_ListOfShape& faces = subToFaces( i );
3326 int subID = meshDS->ShapeToIndex( sub );
3327 int faceID = meshDS->ShapeToIndex( faces.First() );
3328 myShapeID2Surf.insert ( make_pair( subID, myShapeID2Surf[ faceID ]));
3333 //================================================================================
3335 * \brief Constructor of a complex side face
3337 //================================================================================
3339 StdMeshers_PrismAsBlock::TSideFace::
3340 TSideFace(SMESH_Mesh& mesh,
3341 const vector< TSideFace* >& components,
3342 const vector< pair< double, double> > & params)
3343 :myID( components[0] ? components[0]->myID : 0 ),
3344 myParamToColumnMap( 0 ),
3346 myIsForward( true ),
3347 myComponents( components ),
3350 if ( myID == ID_Fx1z || myID == ID_F0yz )
3352 // reverse components
3353 std::reverse( myComponents.begin(), myComponents.end() );
3354 std::reverse( myParams.begin(), myParams.end() );
3355 for ( size_t i = 0; i < myParams.size(); ++i )
3357 const double f = myParams[i].first;
3358 const double l = myParams[i].second;
3359 myParams[i] = make_pair( 1. - l, 1. - f );
3363 //================================================================================
3365 * \brief Copy constructor
3366 * \param other - other side
3368 //================================================================================
3370 StdMeshers_PrismAsBlock::TSideFace::TSideFace( const TSideFace& other ):
3371 myID ( other.myID ),
3372 myParamToColumnMap ( other.myParamToColumnMap ),
3373 mySurface ( other.mySurface ),
3374 myBaseEdge ( other.myBaseEdge ),
3375 myShapeID2Surf ( other.myShapeID2Surf ),
3376 myParams ( other.myParams ),
3377 myIsForward ( other.myIsForward ),
3378 myComponents ( other.myComponents.size() ),
3379 myHelper ( *other.myHelper.GetMesh() )
3381 for (int i = 0 ; i < myComponents.size(); ++i )
3382 myComponents[ i ] = new TSideFace( *other.myComponents[ i ]);
3385 //================================================================================
3387 * \brief Deletes myComponents
3389 //================================================================================
3391 StdMeshers_PrismAsBlock::TSideFace::~TSideFace()
3393 for (int i = 0 ; i < myComponents.size(); ++i )
3394 if ( myComponents[ i ] )
3395 delete myComponents[ i ];
3398 //================================================================================
3400 * \brief Return geometry of the vertical curve
3401 * \param isMax - true means curve located closer to (1,1,1) block point
3402 * \retval Adaptor3d_Curve* - curve adaptor
3404 //================================================================================
3406 Adaptor3d_Curve* StdMeshers_PrismAsBlock::TSideFace::VertiCurve(const bool isMax) const
3408 if ( !myComponents.empty() ) {
3410 return myComponents.back()->VertiCurve(isMax);
3412 return myComponents.front()->VertiCurve(isMax);
3414 double f = myParams[0].first, l = myParams[0].second;
3415 if ( !myIsForward ) std::swap( f, l );
3416 return new TVerticalEdgeAdaptor( myParamToColumnMap, isMax ? l : f );
3419 //================================================================================
3421 * \brief Return geometry of the top or bottom curve
3423 * \retval Adaptor3d_Curve* -
3425 //================================================================================
3427 Adaptor3d_Curve* StdMeshers_PrismAsBlock::TSideFace::HorizCurve(const bool isTop) const
3429 return new THorizontalEdgeAdaptor( this, isTop );
3432 //================================================================================
3434 * \brief Return pcurves
3435 * \param pcurv - array of 4 pcurves
3436 * \retval bool - is a success
3438 //================================================================================
3440 bool StdMeshers_PrismAsBlock::TSideFace::GetPCurves(Adaptor2d_Curve2d* pcurv[4]) const
3442 int iEdge[ 4 ] = { BOTTOM_EDGE, TOP_EDGE, V0_EDGE, V1_EDGE };
3444 for ( int i = 0 ; i < 4 ; ++i ) {
3445 Handle(Geom2d_Line) line;
3446 switch ( iEdge[ i ] ) {
3448 line = new Geom2d_Line( gp_Pnt2d( 0, 1 ), gp::DX2d() ); break;
3450 line = new Geom2d_Line( gp::Origin2d(), gp::DX2d() ); break;
3452 line = new Geom2d_Line( gp::Origin2d(), gp::DY2d() ); break;
3454 line = new Geom2d_Line( gp_Pnt2d( 1, 0 ), gp::DY2d() ); break;
3456 pcurv[ i ] = new Geom2dAdaptor_Curve( line, 0, 1 );
3461 //================================================================================
3463 * \brief Returns geometry of pcurve on a horizontal face
3464 * \param isTop - is top or bottom face
3465 * \param horFace - a horizontal face
3466 * \retval Adaptor2d_Curve2d* - curve adaptor
3468 //================================================================================
3471 StdMeshers_PrismAsBlock::TSideFace::HorizPCurve(const bool isTop,
3472 const TopoDS_Face& horFace) const
3474 return new TPCurveOnHorFaceAdaptor( this, isTop, horFace );
3477 //================================================================================
3479 * \brief Return a component corresponding to parameter
3480 * \param U - parameter along a horizontal size
3481 * \param localU - parameter along a horizontal size of a component
3482 * \retval TSideFace* - found component
3484 //================================================================================
3486 StdMeshers_PrismAsBlock::TSideFace*
3487 StdMeshers_PrismAsBlock::TSideFace::GetComponent(const double U,double & localU) const
3490 if ( myComponents.empty() )
3491 return const_cast<TSideFace*>( this );
3494 for ( i = 0; i < myComponents.size(); ++i )
3495 if ( U < myParams[ i ].second )
3497 if ( i >= myComponents.size() )
3498 i = myComponents.size() - 1;
3500 double f = myParams[ i ].first, l = myParams[ i ].second;
3501 localU = ( U - f ) / ( l - f );
3502 return myComponents[ i ];
3505 //================================================================================
3507 * \brief Find node columns for a parameter
3508 * \param U - parameter along a horizontal edge
3509 * \param col1 - the 1st found column
3510 * \param col2 - the 2nd found column
3511 * \retval r - normalized position of U between the found columns
3513 //================================================================================
3515 double StdMeshers_PrismAsBlock::TSideFace::GetColumns(const double U,
3516 TParam2ColumnIt & col1,
3517 TParam2ColumnIt & col2) const
3519 double u = U, r = 0;
3520 if ( !myComponents.empty() ) {
3521 TSideFace * comp = GetComponent(U,u);
3522 return comp->GetColumns( u, col1, col2 );
3527 double f = myParams[0].first, l = myParams[0].second;
3528 u = f + u * ( l - f );
3530 col1 = col2 = getColumn( myParamToColumnMap, u );
3531 if ( ++col2 == myParamToColumnMap->end() ) {
3536 double uf = col1->first;
3537 double ul = col2->first;
3538 r = ( u - uf ) / ( ul - uf );
3543 //================================================================================
3545 * \brief Return all nodes at a given height together with their normalized parameters
3546 * \param [in] Z - the height of interest
3547 * \param [out] nodes - map of parameter to node
3549 //================================================================================
3551 void StdMeshers_PrismAsBlock::
3552 TSideFace::GetNodesAtZ(const int Z,
3553 map<double, const SMDS_MeshNode* >& nodes ) const
3555 if ( !myComponents.empty() )
3558 for ( size_t i = 0; i < myComponents.size(); ++i )
3560 map<double, const SMDS_MeshNode* > nn;
3561 myComponents[i]->GetNodesAtZ( Z, nn );
3562 map<double, const SMDS_MeshNode* >::iterator u2n = nn.begin();
3563 if ( !nodes.empty() && nodes.rbegin()->second == u2n->second )
3565 const double uRange = myParams[i].second - myParams[i].first;
3566 for ( ; u2n != nn.end(); ++u2n )
3567 nodes.insert( nodes.end(), make_pair( u0 + uRange * u2n->first, u2n->second ));
3573 double f = myParams[0].first, l = myParams[0].second;
3576 const double uRange = l - f;
3577 if ( Abs( uRange ) < std::numeric_limits<double>::min() )
3579 TParam2ColumnIt u2col = getColumn( myParamToColumnMap, myParams[0].first + 1e-3 );
3580 for ( ; u2col != myParamToColumnMap->end(); ++u2col )
3581 if ( u2col->first > myParams[0].second + 1e-9 )
3584 nodes.insert( nodes.end(),
3585 make_pair( ( u2col->first - f ) / uRange, u2col->second[ Z ] ));
3589 //================================================================================
3591 * \brief Return coordinates by normalized params
3592 * \param U - horizontal param
3593 * \param V - vertical param
3594 * \retval gp_Pnt - result point
3596 //================================================================================
3598 gp_Pnt StdMeshers_PrismAsBlock::TSideFace::Value(const Standard_Real U,
3599 const Standard_Real V) const
3601 if ( !myComponents.empty() ) {
3603 TSideFace * comp = GetComponent(U,u);
3604 return comp->Value( u, V );
3607 TParam2ColumnIt u_col1, u_col2;
3608 double vR, hR = GetColumns( U, u_col1, u_col2 );
3610 const SMDS_MeshNode* nn[4];
3612 // BEGIN issue 0020680: Bad cell created by Radial prism in center of torus
3613 // Workaround for a wrongly located point returned by mySurface.Value() for
3614 // UV located near boundary of BSpline surface.
3615 // To bypass the problem, we take point from 3D curve of EDGE.
3616 // It solves pb of the bloc_fiss_new.py
3617 const double tol = 1e-3;
3618 if ( V < tol || V+tol >= 1. )
3620 nn[0] = V < tol ? u_col1->second.front() : u_col1->second.back();
3621 nn[2] = V < tol ? u_col2->second.front() : u_col2->second.back();
3629 TopoDS_Shape s = myHelper.GetSubShapeByNode( nn[0], myHelper.GetMeshDS() );
3630 if ( s.ShapeType() != TopAbs_EDGE )
3631 s = myHelper.GetSubShapeByNode( nn[2], myHelper.GetMeshDS() );
3632 if ( s.ShapeType() == TopAbs_EDGE )
3633 edge = TopoDS::Edge( s );
3635 if ( !edge.IsNull() )
3637 double u1 = myHelper.GetNodeU( edge, nn[0] );
3638 double u3 = myHelper.GetNodeU( edge, nn[2] );
3639 double u = u1 * ( 1 - hR ) + u3 * hR;
3640 TopLoc_Location loc; double f,l;
3641 Handle(Geom_Curve) curve = BRep_Tool::Curve( edge,loc,f,l );
3642 return curve->Value( u ).Transformed( loc );
3645 // END issue 0020680: Bad cell created by Radial prism in center of torus
3647 vR = getRAndNodes( & u_col1->second, V, nn[0], nn[1] );
3648 vR = getRAndNodes( & u_col2->second, V, nn[2], nn[3] );
3650 if ( !myShapeID2Surf.empty() ) // side is vertically composite
3652 // find a FACE on which the 4 nodes lie
3653 TSideFace* me = (TSideFace*) this;
3654 int notFaceID1 = 0, notFaceID2 = 0;
3655 for ( int i = 0; i < 4; ++i )
3656 if ( nn[i]->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE ) // node on FACE
3658 me->mySurface = me->myShapeID2Surf[ nn[i]->getshapeId() ];
3662 else if ( notFaceID1 == 0 ) // node on EDGE or VERTEX
3664 me->mySurface = me->myShapeID2Surf[ nn[i]->getshapeId() ];
3665 notFaceID1 = nn[i]->getshapeId();
3667 else if ( notFaceID1 != nn[i]->getshapeId() ) // node on other EDGE or VERTEX
3669 if ( mySurface != me->myShapeID2Surf[ nn[i]->getshapeId() ])
3670 notFaceID2 = nn[i]->getshapeId();
3672 if ( notFaceID2 ) // no nodes of FACE and nodes are on different FACEs
3674 SMESHDS_Mesh* meshDS = myHelper.GetMeshDS();
3675 TopoDS_Shape face = myHelper.GetCommonAncestor( meshDS->IndexToShape( notFaceID1 ),
3676 meshDS->IndexToShape( notFaceID2 ),
3677 *myHelper.GetMesh(),
3679 if ( face.IsNull() )
3680 throw SALOME_Exception("StdMeshers_PrismAsBlock::TSideFace::Value() face.IsNull()");
3681 int faceID = meshDS->ShapeToIndex( face );
3682 me->mySurface = me->myShapeID2Surf[ faceID ];
3684 throw SALOME_Exception("StdMeshers_PrismAsBlock::TSideFace::Value() !mySurface");
3687 ((TSideFace*) this)->myHelper.SetSubShape( mySurface->Face() );
3689 gp_XY uv1 = myHelper.GetNodeUV( mySurface->Face(), nn[0], nn[2]);
3690 gp_XY uv2 = myHelper.GetNodeUV( mySurface->Face(), nn[1], nn[3]);
3691 gp_XY uv12 = uv1 * ( 1 - vR ) + uv2 * vR;
3693 gp_XY uv3 = myHelper.GetNodeUV( mySurface->Face(), nn[2], nn[0]);
3694 gp_XY uv4 = myHelper.GetNodeUV( mySurface->Face(), nn[3], nn[1]);
3695 gp_XY uv34 = uv3 * ( 1 - vR ) + uv4 * vR;
3697 gp_XY uv = uv12 * ( 1 - hR ) + uv34 * hR;
3699 gp_Pnt p = mySurface->Value( uv.X(), uv.Y() );
3704 //================================================================================
3706 * \brief Return boundary edge
3707 * \param edge - edge index
3708 * \retval TopoDS_Edge - found edge
3710 //================================================================================
3712 TopoDS_Edge StdMeshers_PrismAsBlock::TSideFace::GetEdge(const int iEdge) const
3714 if ( !myComponents.empty() ) {
3716 case V0_EDGE : return myComponents.front()->GetEdge( iEdge );
3717 case V1_EDGE : return myComponents.back() ->GetEdge( iEdge );
3718 default: return TopoDS_Edge();
3722 const SMDS_MeshNode* node = 0;
3723 SMESHDS_Mesh * meshDS = myHelper.GetMesh()->GetMeshDS();
3724 TNodeColumn* column;
3729 column = & (( ++myParamToColumnMap->begin())->second );
3730 node = ( iEdge == TOP_EDGE ) ? column->back() : column->front();
3731 edge = myHelper.GetSubShapeByNode ( node, meshDS );
3732 if ( edge.ShapeType() == TopAbs_VERTEX ) {
3733 column = & ( myParamToColumnMap->begin()->second );
3734 node = ( iEdge == TOP_EDGE ) ? column->back() : column->front();
3739 bool back = ( iEdge == V1_EDGE );
3740 if ( !myIsForward ) back = !back;
3742 column = & ( myParamToColumnMap->rbegin()->second );
3744 column = & ( myParamToColumnMap->begin()->second );
3745 if ( column->size() > 0 )
3746 edge = myHelper.GetSubShapeByNode( (*column)[ 1 ], meshDS );
3747 if ( edge.IsNull() || edge.ShapeType() == TopAbs_VERTEX )
3748 node = column->front();
3753 if ( !edge.IsNull() && edge.ShapeType() == TopAbs_EDGE )
3754 return TopoDS::Edge( edge );
3756 // find edge by 2 vertices
3757 TopoDS_Shape V1 = edge;
3758 TopoDS_Shape V2 = myHelper.GetSubShapeByNode( node, meshDS );
3759 if ( !V2.IsNull() && V2.ShapeType() == TopAbs_VERTEX && !V2.IsSame( V1 ))
3761 TopoDS_Shape ancestor = myHelper.GetCommonAncestor( V1, V2, *myHelper.GetMesh(), TopAbs_EDGE);
3762 if ( !ancestor.IsNull() )
3763 return TopoDS::Edge( ancestor );
3765 return TopoDS_Edge();
3768 //================================================================================
3770 * \brief Fill block sub-shapes
3771 * \param shapeMap - map to fill in
3772 * \retval int - nb inserted sub-shapes
3774 //================================================================================
3776 int StdMeshers_PrismAsBlock::TSideFace::InsertSubShapes(TBlockShapes& shapeMap) const
3781 vector< int > edgeIdVec;
3782 SMESH_Block::GetFaceEdgesIDs( myID, edgeIdVec );
3784 for ( int i = BOTTOM_EDGE; i <=V1_EDGE ; ++i ) {
3785 TopoDS_Edge e = GetEdge( i );
3786 if ( !e.IsNull() ) {
3787 nbInserted += SMESH_Block::Insert( e, edgeIdVec[ i ], shapeMap);
3791 // Insert corner vertices
3793 TParam2ColumnIt col1, col2 ;
3794 vector< int > vertIdVec;
3797 SMESH_Block::GetEdgeVertexIDs( edgeIdVec[ V0_EDGE ], vertIdVec);
3798 GetColumns(0, col1, col2 );
3799 const SMDS_MeshNode* node0 = col1->second.front();
3800 const SMDS_MeshNode* node1 = col1->second.back();
3801 TopoDS_Shape v0 = myHelper.GetSubShapeByNode( node0, myHelper.GetMeshDS());
3802 TopoDS_Shape v1 = myHelper.GetSubShapeByNode( node1, myHelper.GetMeshDS());
3803 if ( v0.ShapeType() == TopAbs_VERTEX ) {
3804 nbInserted += SMESH_Block::Insert( v0, vertIdVec[ 0 ], shapeMap);
3806 if ( v1.ShapeType() == TopAbs_VERTEX ) {
3807 nbInserted += SMESH_Block::Insert( v1, vertIdVec[ 1 ], shapeMap);
3811 SMESH_Block::GetEdgeVertexIDs( edgeIdVec[ V1_EDGE ], vertIdVec);
3812 GetColumns(1, col1, col2 );
3813 node0 = col2->second.front();
3814 node1 = col2->second.back();
3815 v0 = myHelper.GetSubShapeByNode( node0, myHelper.GetMeshDS());
3816 v1 = myHelper.GetSubShapeByNode( node1, myHelper.GetMeshDS());
3817 if ( v0.ShapeType() == TopAbs_VERTEX ) {
3818 nbInserted += SMESH_Block::Insert( v0, vertIdVec[ 0 ], shapeMap);
3820 if ( v1.ShapeType() == TopAbs_VERTEX ) {
3821 nbInserted += SMESH_Block::Insert( v1, vertIdVec[ 1 ], shapeMap);
3824 // TopoDS_Vertex V0, V1, Vcom;
3825 // TopExp::Vertices( myBaseEdge, V0, V1, true );
3826 // if ( !myIsForward ) std::swap( V0, V1 );
3828 // // bottom vertex IDs
3829 // SMESH_Block::GetEdgeVertexIDs( edgeIdVec[ _u0 ], vertIdVec);
3830 // SMESH_Block::Insert( V0, vertIdVec[ 0 ], shapeMap);
3831 // SMESH_Block::Insert( V1, vertIdVec[ 1 ], shapeMap);
3833 // TopoDS_Edge sideEdge = GetEdge( V0_EDGE );
3834 // if ( sideEdge.IsNull() || !TopExp::CommonVertex( botEdge, sideEdge, Vcom ))
3837 // // insert one side edge
3839 // if ( Vcom.IsSame( V0 )) edgeID = edgeIdVec[ _v0 ];
3840 // else edgeID = edgeIdVec[ _v1 ];
3841 // SMESH_Block::Insert( sideEdge, edgeID, shapeMap);
3843 // // top vertex of the side edge
3844 // SMESH_Block::GetEdgeVertexIDs( edgeID, vertIdVec);
3845 // TopoDS_Vertex Vtop = TopExp::FirstVertex( sideEdge );
3846 // if ( Vcom.IsSame( Vtop ))
3847 // Vtop = TopExp::LastVertex( sideEdge );
3848 // SMESH_Block::Insert( Vtop, vertIdVec[ 1 ], shapeMap);
3850 // // other side edge
3851 // sideEdge = GetEdge( V1_EDGE );
3852 // if ( sideEdge.IsNull() )
3854 // if ( edgeID = edgeIdVec[ _v1 ]) edgeID = edgeIdVec[ _v0 ];
3855 // else edgeID = edgeIdVec[ _v1 ];
3856 // SMESH_Block::Insert( sideEdge, edgeID, shapeMap);
3859 // TopoDS_Edge topEdge = GetEdge( TOP_EDGE );
3860 // SMESH_Block::Insert( topEdge, edgeIdVec[ _u1 ], shapeMap);
3862 // // top vertex of the other side edge
3863 // if ( !TopExp::CommonVertex( topEdge, sideEdge, Vcom ))
3865 // SMESH_Block::GetEdgeVertexIDs( edgeID, vertIdVec );
3866 // SMESH_Block::Insert( Vcom, vertIdVec[ 1 ], shapeMap);
3871 //================================================================================
3873 * \brief Dump ids of nodes of sides
3875 //================================================================================
3877 void StdMeshers_PrismAsBlock::TSideFace::dumpNodes(int nbNodes) const
3880 cout << endl << "NODES OF FACE "; SMESH_Block::DumpShapeID( myID, cout ) << endl;
3881 THorizontalEdgeAdaptor* hSize0 = (THorizontalEdgeAdaptor*) HorizCurve(0);
3882 cout << "Horiz side 0: "; hSize0->dumpNodes(nbNodes); cout << endl;
3883 THorizontalEdgeAdaptor* hSize1 = (THorizontalEdgeAdaptor*) HorizCurve(1);
3884 cout << "Horiz side 1: "; hSize1->dumpNodes(nbNodes); cout << endl;
3885 TVerticalEdgeAdaptor* vSide0 = (TVerticalEdgeAdaptor*) VertiCurve(0);
3886 cout << "Verti side 0: "; vSide0->dumpNodes(nbNodes); cout << endl;
3887 TVerticalEdgeAdaptor* vSide1 = (TVerticalEdgeAdaptor*) VertiCurve(1);
3888 cout << "Verti side 1: "; vSide1->dumpNodes(nbNodes); cout << endl;
3889 delete hSize0; delete hSize1; delete vSide0; delete vSide1;
3893 //================================================================================
3895 * \brief Creates TVerticalEdgeAdaptor
3896 * \param columnsMap - node column map
3897 * \param parameter - normalized parameter
3899 //================================================================================
3901 StdMeshers_PrismAsBlock::TVerticalEdgeAdaptor::
3902 TVerticalEdgeAdaptor( const TParam2ColumnMap* columnsMap, const double parameter)
3904 myNodeColumn = & getColumn( columnsMap, parameter )->second;
3907 //================================================================================
3909 * \brief Return coordinates for the given normalized parameter
3910 * \param U - normalized parameter
3911 * \retval gp_Pnt - coordinates
3913 //================================================================================
3915 gp_Pnt StdMeshers_PrismAsBlock::TVerticalEdgeAdaptor::Value(const Standard_Real U) const
3917 const SMDS_MeshNode* n1;
3918 const SMDS_MeshNode* n2;
3919 double r = getRAndNodes( myNodeColumn, U, n1, n2 );
3920 return gpXYZ(n1) * ( 1 - r ) + gpXYZ(n2) * r;
3923 //================================================================================
3925 * \brief Dump ids of nodes
3927 //================================================================================
3929 void StdMeshers_PrismAsBlock::TVerticalEdgeAdaptor::dumpNodes(int nbNodes) const
3932 for ( int i = 0; i < nbNodes && i < myNodeColumn->size(); ++i )
3933 cout << (*myNodeColumn)[i]->GetID() << " ";
3934 if ( nbNodes < myNodeColumn->size() )
3935 cout << myNodeColumn->back()->GetID();
3939 //================================================================================
3941 * \brief Return coordinates for the given normalized parameter
3942 * \param U - normalized parameter
3943 * \retval gp_Pnt - coordinates
3945 //================================================================================
3947 gp_Pnt StdMeshers_PrismAsBlock::THorizontalEdgeAdaptor::Value(const Standard_Real U) const
3949 return mySide->TSideFace::Value( U, myV );
3952 //================================================================================
3954 * \brief Dump ids of <nbNodes> first nodes and the last one
3956 //================================================================================
3958 void StdMeshers_PrismAsBlock::THorizontalEdgeAdaptor::dumpNodes(int nbNodes) const
3961 // Not bedugged code. Last node is sometimes incorrect
3962 const TSideFace* side = mySide;
3964 if ( mySide->IsComplex() )
3965 side = mySide->GetComponent(0,u);
3967 TParam2ColumnIt col, col2;
3968 TParam2ColumnMap* u2cols = side->GetColumns();
3969 side->GetColumns( u , col, col2 );
3971 int j, i = myV ? mySide->ColumnHeight()-1 : 0;
3973 const SMDS_MeshNode* n = 0;
3974 const SMDS_MeshNode* lastN
3975 = side->IsForward() ? u2cols->rbegin()->second[ i ] : u2cols->begin()->second[ i ];
3976 for ( j = 0; j < nbNodes && n != lastN; ++j )
3978 n = col->second[ i ];
3979 cout << n->GetID() << " ";
3980 if ( side->IsForward() )
3988 if ( mySide->IsComplex() )
3989 side = mySide->GetComponent(1,u);
3991 side->GetColumns( u , col, col2 );
3992 if ( n != col->second[ i ] )
3993 cout << col->second[ i ]->GetID();
3997 //================================================================================
3999 * \brief Costructor of TPCurveOnHorFaceAdaptor fills its map of
4000 * normalized parameter to node UV on a horizontal face
4001 * \param [in] sideFace - lateral prism side
4002 * \param [in] isTop - is \a horFace top or bottom of the prism
4003 * \param [in] horFace - top or bottom face of the prism
4005 //================================================================================
4007 StdMeshers_PrismAsBlock::
4008 TPCurveOnHorFaceAdaptor::TPCurveOnHorFaceAdaptor( const TSideFace* sideFace,
4010 const TopoDS_Face& horFace)
4012 if ( sideFace && !horFace.IsNull() )
4014 //cout << "\n\t FACE " << sideFace->FaceID() << endl;
4015 const int Z = isTop ? sideFace->ColumnHeight() - 1 : 0;
4016 map<double, const SMDS_MeshNode* > u2nodes;
4017 sideFace->GetNodesAtZ( Z, u2nodes );
4018 if ( u2nodes.empty() )
4021 SMESH_MesherHelper helper( *sideFace->GetMesh() );
4022 helper.SetSubShape( horFace );
4027 Handle(Geom2d_Curve) C2d;
4029 const double tol = 10 * helper.MaxTolerance( horFace );
4030 const SMDS_MeshNode* prevNode = u2nodes.rbegin()->second;
4032 map<double, const SMDS_MeshNode* >::iterator u2n = u2nodes.begin();
4033 for ( ; u2n != u2nodes.end(); ++u2n )
4035 const SMDS_MeshNode* n = u2n->second;
4037 if ( n->GetPosition()->GetTypeOfPosition() == SMDS_TOP_EDGE )
4039 if ( n->getshapeId() != edgeID )
4042 edgeID = n->getshapeId();
4043 TopoDS_Shape S = helper.GetSubShapeByNode( n, helper.GetMeshDS() );
4044 if ( !S.IsNull() && S.ShapeType() == TopAbs_EDGE )
4046 C2d = BRep_Tool::CurveOnSurface( TopoDS::Edge( S ), horFace, f,l );
4049 if ( !C2d.IsNull() )
4051 double u = static_cast< const SMDS_EdgePosition* >( n->GetPosition() )->GetUParameter();
4052 if ( f <= u && u <= l )
4054 uv = C2d->Value( u ).XY();
4055 okUV = helper.CheckNodeUV( horFace, n, uv, tol );
4060 uv = helper.GetNodeUV( horFace, n, prevNode, &okUV );
4062 myUVmap.insert( myUVmap.end(), make_pair( u2n->first, uv ));
4063 // cout << n->getshapeId() << " N " << n->GetID()
4064 // << " \t" << uv.X() << ", " << uv.Y() << " \t" << u2n->first << endl;
4071 //================================================================================
4073 * \brief Return UV on pcurve for the given normalized parameter
4074 * \param U - normalized parameter
4075 * \retval gp_Pnt - coordinates
4077 //================================================================================
4079 gp_Pnt2d StdMeshers_PrismAsBlock::TPCurveOnHorFaceAdaptor::Value(const Standard_Real U) const
4081 map< double, gp_XY >::const_iterator i1 = myUVmap.upper_bound( U );
4083 if ( i1 == myUVmap.end() )
4084 return myUVmap.empty() ? gp_XY(0,0) : myUVmap.rbegin()->second;
4086 if ( i1 == myUVmap.begin() )
4087 return (*i1).second;
4089 map< double, gp_XY >::const_iterator i2 = i1--;
4091 double r = ( U - i1->first ) / ( i2->first - i1->first );
4092 return i1->second * ( 1 - r ) + i2->second * r;