-// Copyright (C) 2007-2016 CEA/DEN, EDF R&D, OPEN CASCADE
+// Copyright (C) 2007-2021 CEA/DEN, EDF R&D, OPEN CASCADE
//
// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
#include "SMESH_Comment.hxx"
#include "SMESH_Gen.hxx"
#include "SMESH_HypoFilter.hxx"
+#include "SMESH_MeshEditor.hxx"
#include "SMESH_MesherHelper.hxx"
#include "StdMeshers_FaceSide.hxx"
#include "StdMeshers_ProjectionSource1D.hxx"
BOTTOM_EDGE = 0, TOP_EDGE, V0_EDGE, V1_EDGE, // edge IDs in face
NB_WALL_FACES = 4 }; //
-namespace {
-
+namespace
+{
+ //=======================================================================
+ /*!
+ * \brief Auxiliary mesh
+ */
+ struct TmpMesh: public SMESH_Mesh
+ {
+ TmpMesh() {
+ _isShapeToMesh = (_id = 0);
+ _myMeshDS = new SMESHDS_Mesh( _id, true );
+ }
+ };
//=======================================================================
/*!
* \brief Quadrangle algorithm
*/
- struct TQuadrangleAlgo : public StdMeshers_Quadrangle_2D
+ class TQuadrangleAlgo : public StdMeshers_Quadrangle_2D
{
+ typedef NCollection_DataMap< TopoDS_Face, FaceQuadStruct::Ptr > TFace2QuadMap;
+ TFace2QuadMap myFace2QuadMap;
+
TQuadrangleAlgo(SMESH_Gen* gen)
: StdMeshers_Quadrangle_2D( gen->GetANewId(), gen)
{
}
- static StdMeshers_Quadrangle_2D* instance( SMESH_Algo* fatherAlgo,
- SMESH_MesherHelper* helper=0)
+ public:
+
+ //================================================================================
+ // Clear data of TQuadrangleAlgo at destruction
+ struct Cleaner
+ {
+ TQuadrangleAlgo* myAlgo;
+
+ Cleaner(TQuadrangleAlgo* algo): myAlgo( algo ){}
+ ~Cleaner() { myAlgo->reset(); }
+ };
+
+ //================================================================================
+ // Return TQuadrangleAlgo singleton
+ static TQuadrangleAlgo* instance( SMESH_Algo* fatherAlgo,
+ SMESH_MesherHelper* helper=0)
{
static TQuadrangleAlgo* algo = new TQuadrangleAlgo( fatherAlgo->GetGen() );
if ( helper &&
return algo;
}
+
+ //================================================================================
+ // Clear collected data
+ void reset()
+ {
+ StdMeshers_Quadrangle_2D::myQuadList.clear();
+ StdMeshers_Quadrangle_2D::myHelper = nullptr;
+ StdMeshers_Quadrangle_2D::myProxyMesh.reset();
+ myFace2QuadMap.Clear();
+ }
+
+ //================================================================================
+ /*!
+ * \brief Return FaceQuadStruct if a given FACE can be meshed by StdMeshers_Quadrangle_2D
+ */
+ FaceQuadStruct::Ptr CheckNbEdges(SMESH_Mesh& theMesh,
+ const TopoDS_Shape& theShape )
+ {
+ const TopoDS_Face& face = TopoDS::Face( theShape );
+ if ( myFace2QuadMap.IsBound( face ))
+ return myFace2QuadMap.Find( face );
+
+ FaceQuadStruct::Ptr & resultQuad = * myFace2QuadMap.Bound( face, FaceQuadStruct::Ptr() );
+
+ FaceQuadStruct::Ptr quad =
+ StdMeshers_Quadrangle_2D::CheckNbEdges( theMesh, face, /*considerMesh=*/false, myHelper );
+ if ( quad )
+ {
+ // check if the quadrangle mesh would be valid
+
+ // check existing 1D mesh
+ // int nbSegments[4], i = 0;
+ // for ( FaceQuadStruct::Side & side : quad->side )
+ // nbSegments[ i++ ] = side.grid->NbSegments();
+ // if ( nbSegments[0] > 0 && nbSegments[2] > 0 && nbSegments[0] != nbSegments[2] ||
+ // nbSegments[1] > 0 && nbSegments[3] > 0 && nbSegments[1] != nbSegments[3] )
+ // return resultQuad;
+
+ int nbEdges = 0;
+ for ( FaceQuadStruct::Side & side : quad->side )
+ nbEdges += side.grid->NbEdges();
+ if ( nbEdges == 4 )
+ return resultQuad = quad;
+
+ TmpMesh mesh;
+ mesh.ShapeToMesh( face );
+ SMESHDS_Mesh* meshDS = mesh.GetMeshDS();
+ SMESH_MesherHelper helper( mesh );
+ helper.SetSubShape( face );
+ helper.SetElementsOnShape( true );
+
+ // create nodes on all VERTEX'es
+ for ( TopExp_Explorer vert( face, TopAbs_VERTEX ); vert.More(); vert.Next() )
+ mesh.GetSubMesh( vert.Current() )->ComputeStateEngine( SMESH_subMesh::COMPUTE );
+
+ FaceQuadStruct::Ptr tmpQuad( new FaceQuadStruct() );
+ tmpQuad->side.resize( 4 );
+
+ // divide quad sides into halves at least
+ const SMDS_MeshNode* node;
+ for ( int iDir = 0; iDir < 2; ++iDir )
+ {
+ StdMeshers_FaceSidePtr sides[2] = { quad->side[iDir], quad->side[iDir+2] };
+ std::map< double, const SMDS_MeshNode* > nodes[2];
+ for ( int iS : { 0, 1 } )
+ {
+ node = SMESH_Algo::VertexNode( sides[iS]->FirstVertex(), meshDS );
+ nodes[iS].insert( std::make_pair( 0, node ));
+ double curLen = 0;
+ for ( int iE = 1; iE < sides[iS]->NbEdges(); ++iE )
+ {
+ curLen += sides[iS]->EdgeLength( iE - 1 );
+ double u = curLen / sides[iS]->Length();
+ node = SMESH_Algo::VertexNode( sides[iS]->FirstVertex( iE ), meshDS );
+ nodes[iS ].insert( std::make_pair( u, node ));
+ nodes[1-iS].insert( std::make_pair( u, nullptr ));
+ }
+ nodes[iS].insert( std::make_pair( 0.5, nullptr ));
+ node = SMESH_Algo::VertexNode( sides[iS]->LastVertex(), meshDS );
+ nodes[iS].insert( std::make_pair( 1, node ));
+ }
+
+ for ( int iS : { 0, 1 } )
+ {
+ UVPtStructVec sideNodes;
+ sideNodes.reserve( nodes[ iS ].size() );
+ for ( auto & u_node : nodes[ iS ])
+ {
+ if ( !u_node.second )
+ {
+ gp_Pnt p = sides[iS]->Value3d( u_node.first );
+ u_node.second = meshDS->AddNode( p.X(), p.Y(), p.Z() );
+ TopoDS_Edge edge;
+ double param = sides[iS]->Parameter( u_node.first, edge );
+ meshDS->SetNodeOnEdge( u_node.second, edge, param );
+ }
+ sideNodes.push_back( u_node.second );
+ sideNodes.back().SetUV( helper.GetNodeUV( face, u_node.second ));
+ }
+ tmpQuad->side[ iS ? iDir+2 : iDir ] = StdMeshers_FaceSide::New( sideNodes, face );
+ }
+ }
+ StdMeshers_Quadrangle_2D::myCheckOri = true;
+ StdMeshers_Quadrangle_2D::myQuadList.clear();
+ StdMeshers_Quadrangle_2D::myQuadList.push_back( tmpQuad );
+ StdMeshers_Quadrangle_2D::myHelper = &helper;
+ if ( StdMeshers_Quadrangle_2D::computeQuadDominant( mesh, face, tmpQuad ) &&
+ StdMeshers_Quadrangle_2D::check())
+ {
+ resultQuad = quad;
+ }
+ StdMeshers_Quadrangle_2D::myQuadList.clear();
+ StdMeshers_Quadrangle_2D::myHelper = nullptr;
+ }
+ return resultQuad;
+ }
};
+
//=======================================================================
/*!
* \brief Algorithm projecting 1D mesh
int removeQuasiQuads(list< SMESH_subMesh* >& notQuadSubMesh,
SMESH_MesherHelper* helper,
- StdMeshers_Quadrangle_2D* quadAlgo)
+ TQuadrangleAlgo* quadAlgo)
{
int nbRemoved = 0;
//SMESHDS_Mesh* mesh = notQuadSubMesh.front()->GetFather()->GetMeshDS();
//================================================================================
int countNbSides( const Prism_3D::TPrismTopo & thePrism,
- vector<int> & nbUnitePerEdge,
+ vector<int> & /*nbUnitePerEdge*/,
vector< double > & edgeLength)
{
int nbEdges = thePrism.myNbEdgesInWires.front(); // nb outer edges
int nbSides = nbEdges;
-
+
list< TopoDS_Edge >::const_iterator edgeIt = thePrism.myBottomEdges.begin();
std::advance( edgeIt, nbEdges-1 );
TopoDS_Edge prevE = *edgeIt;
// isPrevStraight = isCurStraight;
// iPrev = iE;
// }
-
+
return nbSides;
}
+ //================================================================================
+ /*!
+ * \brief Count EDGEs ignoring degenerated ones
+ */
+ //================================================================================
+
+ int CountEdges( const TopoDS_Face& face )
+ {
+ int nbE = 0;
+ for ( TopExp_Explorer edgeExp( face, TopAbs_EDGE ); edgeExp.More(); edgeExp.Next() )
+ if ( !SMESH_Algo::isDegenerated( TopoDS::Edge( edgeExp.Current() )))
+ ++nbE;
+
+ return nbE;
+ }
+
//================================================================================
/*!
* \brief Set/get wire index to FaceQuadStruct
cout << "mesh.AddNode( " << p[i].X() << ", "<< p[i].Y() << ", "<< p[i].Z() << ") # " << i <<" " ;
SMESH_Block::DumpShapeID( i, cout ) << endl;
}
+#else
+ (void)p; // unused in release mode
#endif
}
+
} // namespace
//=======================================================================
//function : StdMeshers_Prism_3D
-//purpose :
+//purpose :
//=======================================================================
StdMeshers_Prism_3D::StdMeshers_Prism_3D(int hypId, SMESH_Gen* gen)
//=======================================================================
//function : CheckHypothesis
-//purpose :
+//purpose :
//=======================================================================
-bool StdMeshers_Prism_3D::CheckHypothesis(SMESH_Mesh& aMesh,
- const TopoDS_Shape& aShape,
+bool StdMeshers_Prism_3D::CheckHypothesis(SMESH_Mesh& /*aMesh*/,
+ const TopoDS_Shape& /*aShape*/,
SMESH_Hypothesis::Hypothesis_Status& aStatus)
{
// no hypothesis
SMESH_MesherHelper helper( theMesh );
myHelper = &helper;
myPrevBottomSM = 0;
+ TQuadrangleAlgo::Cleaner quadCleaner( TQuadrangleAlgo::instance( this ));
int nbSolids = helper.Count( theShape, TopAbs_SOLID, /*skipSame=*/false );
if ( nbSolids < 1 )
// look for meshed FACEs ("source" FACEs) that must be prism bottoms
list< TopoDS_Face > meshedFaces, notQuadMeshedFaces, notQuadFaces;
const bool meshHasQuads = ( theMesh.NbQuadrangles() > 0 );
- //StdMeshers_Quadrangle_2D* quadAlgo = TQuadrangleAlgo::instance( this );
for ( int iF = 1; iF <= faceToSolids.Extent(); ++iF )
{
const TopoDS_Face& face = TopoDS::Face( faceToSolids.FindKey( iF ));
}
TopTools_MapOfShape meshedSolids;
+ NCollection_DataMap< TopoDS_Shape, SMESH_subMesh* > meshedFace2AlgoSM;
list< Prism_3D::TPrismTopo > meshedPrism;
list< TopoDS_Face > suspectSourceFaces;
TopTools_ListIteratorOfListOfShape solidIt;
{
prism.Clear();
prism.myBottom = face;
+ if ( meshedFace2AlgoSM.IsBound( face ))
+ prism.myAlgoSM = meshedFace2AlgoSM.Find( face );
if ( !initPrism( prism, solid, selectBottom ) ||
!compute( prism ))
return false;
SMESHDS_SubMesh* smDS = theMesh.GetMeshDS()->MeshElements( prism.myTop );
- if ( !myHelper->IsSameElemGeometry( smDS, SMDSGeom_QUADRANGLE ))
+ if ( !myHelper->IsSameElemGeometry( smDS, SMDSGeom_QUADRANGLE ) ||
+ !myHelper->IsStructured( theMesh.GetSubMesh( prism.myTop )))
{
meshedFaces.push_front( prism.myTop );
+ if ( prism.myAlgoSM && prism.myAlgoSM->GetAlgo() )
+ {
+ meshedFace2AlgoSM.Bind( prism.myTop, prism.myAlgoSM );
+ meshedFace2AlgoSM.Bind( prism.myBottom, prism.myAlgoSM );
+ }
}
else
{
solidList.Remove( solidIt );
continue; // already computed prism
}
- if ( myHelper->IsBlock( solid )) {
- solidIt.Next();
- continue; // too trivial
+ if ( myHelper->IsBlock( solid ))
+ {
+ bool isStructBase = true;
+ if ( prismIt->myAlgoSM )
+ isStructBase = ( myHelper->IsSameElemGeometry( prismIt->myAlgoSM->GetSubMeshDS(),
+ SMDSGeom_QUADRANGLE ) &&
+ myHelper->IsStructured(prismIt->myAlgoSM ));
+ if ( isStructBase )
+ {
+ solidIt.Next();
+ continue; // too trivial
+ }
}
// find a source FACE of the SOLID: it's a FACE sharing a bottom EDGE with wFace
const TopoDS_Edge& wEdge = (*wQuad)->side[ QUAD_TOP_SIDE ].grid->Edge(0);
}
prism.Clear();
prism.myBottom = candidateF;
+ prism.myAlgoSM = prismIt->myAlgoSM;
mySetErrorToSM = false;
if ( !myHelper->IsSubShape( candidateF, prismIt->myShape3D ) &&
myHelper ->IsSubShape( candidateF, solid ) &&
!myHelper->GetMesh()->GetSubMesh( candidateF )->IsMeshComputed() &&
initPrism( prism, solid, /*selectBottom=*/false ) &&
!myHelper->GetMesh()->GetSubMesh( prism.myTop )->IsMeshComputed() &&
- !myHelper->GetMesh()->GetSubMesh( prism.myBottom )->IsMeshComputed() &&
- project2dMesh( sourceF, prism.myBottom ))
+ !myHelper->GetMesh()->GetSubMesh( prism.myBottom )->IsMeshComputed() )
{
- mySetErrorToSM = true;
- if ( !compute( prism ))
- return false;
- SMESHDS_SubMesh* smDS = theMesh.GetMeshDS()->MeshElements( prism.myTop );
- if ( !myHelper->IsSameElemGeometry( smDS, SMDSGeom_QUADRANGLE ))
+ if ( project2dMesh( sourceF, prism.myBottom ))
+ {
+ mySetErrorToSM = true;
+ if ( !compute( prism ))
+ return false;
+ SMESHDS_SubMesh* smDS = theMesh.GetMeshDS()->MeshElements( prism.myTop );
+ if ( !myHelper->IsSameElemGeometry( smDS, SMDSGeom_QUADRANGLE ))
+ {
+ meshedFaces.push_front( prism.myTop );
+ meshedFaces.push_front( prism.myBottom );
+ selectBottom = false;
+ if ( prism.myAlgoSM && prism.myAlgoSM->GetAlgo() )
+ {
+ meshedFace2AlgoSM.Bind( prism.myTop, prism.myAlgoSM );
+ meshedFace2AlgoSM.Bind( prism.myBottom, prism.myAlgoSM );
+ }
+ }
+ meshedPrism.push_back( prism );
+ meshedSolids.Add( solid );
+ }
+ else
{
- meshedFaces.push_front( prism.myTop );
- meshedFaces.push_front( prism.myBottom );
- selectBottom = false;
+ suspectSourceFaces.push_back( prism.myBottom );
+ if ( prism.myAlgoSM && prism.myAlgoSM->GetAlgo() )
+ meshedFace2AlgoSM.Bind( prism.myBottom, prism.myAlgoSM );
}
- meshedPrism.push_back( prism );
- meshedSolids.Add( solid );
}
InitComputeError();
}
allSubMeComputed = smIt->next()->IsMeshComputed();
if ( allSubMeComputed )
{
- faceSM->ComputeStateEngine( SMESH_subMesh::COMPUTE );
+ faceSM->ComputeStateEngine( SMESH_subMesh::COMPUTE_SUBMESH );
if ( !faceSM->IsEmpty() ) {
meshedFaces.push_front( face ); // higher priority
selectBottom = true;
SMESH_Mesh* mesh = myHelper->GetMesh();
- StdMeshers_Quadrangle_2D* quadAlgo = TQuadrangleAlgo::instance( this, myHelper );
+ TQuadrangleAlgo* quadAlgo = TQuadrangleAlgo::instance( this, myHelper );
TopTools_MapOfShape faceMap;
- TopTools_IndexedDataMapOfShapeListOfShape edgeToFaces;
+ TopTools_IndexedDataMapOfShapeListOfShape edgeToFaces;
TopExp::MapShapesAndAncestors( thePrism.myShape3D,
TopAbs_EDGE, TopAbs_FACE, edgeToFaces );
if ( !quadList.back() )
return toSM( error(TCom("Side face #") << shapeID( face )
<< " not meshable with quadrangles"));
- bool isCompositeBase = ! setBottomEdge( *edge, quadList.back(), face );
+ bool isCompositeBase = ! setBottomEdge( *edge, quadList.back(), face ); // -> orient CCW
if ( isCompositeBase )
{
// it's OK if all EDGEs of the bottom side belongs to the bottom FACE
if ( !assocOrProjBottom2Top( bottomToTopTrsf, thePrism ) ) // it also fills myBotToColumnMap
return false;
+ // If all "vertical" EDGEs are straight, then all nodes of an internal node column
+ // are located on a line connecting the top node and the bottom node.
+ bool isStrightColunm = allVerticalEdgesStraight( thePrism );
+ if ( isStrightColunm )
+ myUseBlock = false;
// Create nodes inside the block
myHelper->SetElementsOnShape( true );
- // If all "vertical" EDGEs are straight, then all nodes of an internal node column
- // are located on a line connecting the top node and the bottom node.
- bool isStrightColunm = allVerticalEdgesStraight( thePrism );
if ( !isStrightColunm )
{
double tol = getSweepTolerance( thePrism );
{
// find any applicable algorithm assigned to any FACE of the main shape
std::vector< TopoDS_Shape > faces;
- if ( myPrevBottomSM &&
- myPrevBottomSM->GetAlgo()->IsApplicableToShape( thePrism.myBottom, /*all=*/false ))
+ if ( thePrism.myAlgoSM && thePrism.myAlgoSM->GetAlgo() )
+ faces.push_back( thePrism.myAlgoSM->GetSubShape() );
+ if ( myPrevBottomSM && myPrevBottomSM->GetAlgo() )
faces.push_back( myPrevBottomSM->GetSubShape() );
TopExp_Explorer faceIt( mesh->GetShapeToMesh(), TopAbs_FACE );
while ( smIt->more() && subOK )
{
SMESH_subMesh* sub = smIt->next();
- sub->ComputeStateEngine( SMESH_subMesh::COMPUTE );
+ sub->ComputeStateEngine( SMESH_subMesh::COMPUTE_SUBMESH );
subOK = sub->IsMeshComputed();
}
if ( !subOK )
}
try {
OCC_CATCH_SIGNALS;
+
+ Hypothesis_Status status;
+ algo->CheckHypothesis( *mesh, faces[i], status );
algo->InitComputeError();
- algo->Compute( *mesh, botSM->GetSubShape() );
+ if ( algo->Compute( *mesh, botSM->GetSubShape() ))
+ {
+ myPrevBottomSM = thePrism.myAlgoSM = mesh->GetSubMesh( faces[i] );
+ break;
+ }
}
catch (...) {
}
}
}
}
+ else
+ {
+ myPrevBottomSM = thePrism.myAlgoSM = botSM;
+ }
if ( botSM->IsEmpty() )
return error( COMPERR_BAD_INPUT_MESH,
TCom( "No mesher defined to compute the base face #")
<< shapeID( thePrism.myBottom ));
- if ( botSM->GetAlgo() )
- myPrevBottomSM = botSM;
-
return true;
}
SMESHDS_Mesh* meshDS = myHelper->GetMeshDS();
DBGOUT( endl << "COMPUTE Prism " << meshDS->ShapeToIndex( thePrism.myShape3D ));
- TProjction1dAlgo* projector1D = TProjction1dAlgo::instance( this );
- StdMeshers_Quadrangle_2D* quadAlgo = TQuadrangleAlgo::instance( this, myHelper );
+ TProjction1dAlgo* projector1D = TProjction1dAlgo::instance( this );
+ TQuadrangleAlgo* quadAlgo = TQuadrangleAlgo::instance( this, myHelper );
// SMESH_HypoFilter hyp1dFilter( SMESH_HypoFilter::IsAlgo(),/*not=*/true);
// hyp1dFilter.And( SMESH_HypoFilter::HasDim( 1 ));
mesh->GetSubMesh( v )->ComputeStateEngine( SMESH_subMesh::COMPUTE );
const SMDS_MeshNode* n = SMESH_Algo::VertexNode( v, meshDS );
newNodes[ is2ndV ? newNodes.size()-1 : 0 ] = (SMDS_MeshNode*) n;
+ if ( !n )
+ return toSM( error( TCom("No node on vertex #") << meshDS->ShapeToIndex( v )));
}
// compute nodes on target EDGEs
for ( size_t iN = 1; iN < srcNodeStr.size(); ++iN ) // add segments
{
// find an EDGE to set a new segment
- std::pair<int, TopAbs_ShapeEnum> id2type =
+ std::pair<int, TopAbs_ShapeEnum> id2type =
myHelper->GetMediumPos( newNodes[ iN-1 ], newNodes[ iN ] );
if ( id2type.second != TopAbs_EDGE )
{
{
SMESH_MeshEditor::TListOfListOfNodes lln( 1, list< const SMDS_MeshNode* >() );
lln.back().push_back ( vn );
- lln.back().push_front( newNodes[ iN-isPrev ] ); // to keep
+ lln.back().push_front( newNodes[ iN-isPrev ] ); // to keep
SMESH_MeshEditor( mesh ).MergeNodes( lln );
}
}
if ( myHelper->GetIsQuadratic() )
{
// fill myHelper with medium nodes built by quadAlgo
- SMDS_ElemIteratorPtr fIt = fSM->GetSubMeshDS()->GetElements();
- while ( fIt->more() )
- myHelper->AddTLinks( dynamic_cast<const SMDS_MeshFace*>( fIt->next() ));
+ for ( SMDS_ElemIteratorPtr fIt = fSM->GetSubMeshDS()->GetElements(); fIt->more(); )
+ myHelper->AddTLinks( SMDS_Mesh::DownCast<SMDS_MeshFace>( fIt->next() ));
}
}
}
std::vector<int> aVec = (*anIt).second;
nb2d += Max(aVec[SMDSEntity_Quadrangle],aVec[SMDSEntity_Quad_Quadrangle]);
}
-
+
MapShapeNbElemsItr anIt = aResMap.find( meshFaces[NumBase-1] );
std::vector<int> aVec = (*anIt).second;
bool IsQuadratic = (aVec[SMDSEntity_Quad_Triangle]>aVec[SMDSEntity_Triangle]) ||
{
for ( int iE = 0; iE < botSide->NbEdges(); ++iE )
{
+ // sides are CWW oriented
NSProjUtils::InsertAssociation( botSide->Edge( iE ),
topSide->Edge( iE ), shape2ShapeMap );
- NSProjUtils::InsertAssociation( myHelper->IthVertex( 0, botSide->Edge( iE )),
- myHelper->IthVertex( 0, topSide->Edge( iE )),
+ NSProjUtils::InsertAssociation( botSide->FirstVertex( iE ),
+ topSide->LastVertex ( iE ),
shape2ShapeMap );
}
}
{
return true;
}
- NSProjUtils::TNodeNodeMap& n2nMap =
+ NSProjUtils::TNodeNodeMap& n2nMap =
(NSProjUtils::TNodeNodeMap&) TProjction2dAlgo::instance( this )->GetNodesMap();
n2nMap.clear();
meshDS->MoveNode( topNode, distXYZ[1], distXYZ[2], distXYZ[3] ); // transform can be inaccurate
}
// create node column
- TNode2ColumnMap::iterator bN_col =
+ TNode2ColumnMap::iterator bN_col =
myBotToColumnMap.insert( make_pair ( bN, TNodeColumn() )).first;
TNodeColumn & column = bN_col->second;
column.resize( zSize );
for ( int iN = 0; iN < nbNodes; ++iN )
nodes[ iN ] = nIt->next();
nodes.back() = nodes[0];
-
+
// loop on links
double dist2;
for ( int iN = 0; iN < nbNodes; ++iN )
//=======================================================================
//function : isSimpleQuad
//purpose : check if the bottom FACE is meshable with nice quadrangles,
-// if so the block aproach can work rather fast.
+// if so the block approach can work rather fast.
// This is a temporary mean caused by problems in StdMeshers_Sweeper
//=======================================================================
bool StdMeshers_Prism_3D::project2dMesh(const TopoDS_Face& theSrcFace,
const TopoDS_Face& theTgtFace)
{
+ if ( CountEdges( theSrcFace ) != CountEdges( theTgtFace ))
+ return false;
+
TProjction2dAlgo* projector2D = TProjction2dAlgo::instance( this );
projector2D->myHyp.SetSourceFace( theSrcFace );
bool ok = projector2D->Compute( *myHelper->GetMesh(), theTgtFace );
*/
//================================================================================
-bool StdMeshers_Prism_3D::setFaceAndEdgesXYZ( const int faceID, const gp_XYZ& params, int z )
+bool StdMeshers_Prism_3D::setFaceAndEdgesXYZ( const int faceID, const gp_XYZ& params, int /*z*/ )
{
// find base and top edges of the face
enum { BASE = 0, TOP, LEFT, RIGHT };
{
struct EdgeWithNeighbors
{
- TopoDS_Edge _edge;
- int _iBase; /* index in a WIRE with non-base EDGEs excluded */
- int _iL, _iR; /* used to connect edges in a base FACE */
- bool _isBase; /* is used in a base FACE */
- EdgeWithNeighbors(const TopoDS_Edge& E, int iE, int nbE, int shift, bool isBase ):
- _edge( E ), _iBase( iE + shift ),
- _iL( SMESH_MesherHelper::WrapIndex( iE-1, Max( 1, nbE )) + shift ),
- _iR( SMESH_MesherHelper::WrapIndex( iE+1, Max( 1, nbE )) + shift ),
+ TopoDS_Edge _edge;
+ int _iBase; // index in a WIRE with non-base EDGEs excluded
+ int _iL, _iR; // used to connect PrismSide's
+ int _iE; // index in a WIRE
+ int _iLE, _iRE; // used to connect EdgeWithNeighbors's
+ bool _isBase; // is used in a base FACE
+ TopoDS_Vertex _vv[2]; // end VERTEXes
+ EdgeWithNeighbors(const TopoDS_Edge& E,
+ int iE, int nbE, int shift,
+ int iEE, int nbEE, int shiftE,
+ bool isBase, bool setVV ):
+ _edge( E ),
+ _iBase( iE + shift ),
+ _iL ( SMESH_MesherHelper::WrapIndex( iE-1, Max( 1, nbE )) + shift ),
+ _iR ( SMESH_MesherHelper::WrapIndex( iE+1, Max( 1, nbE )) + shift ),
+ _iE ( iEE + shiftE ),
+ _iLE( SMESH_MesherHelper::WrapIndex( iEE-1, Max( 1, nbEE )) + shiftE ),
+ _iRE( SMESH_MesherHelper::WrapIndex( iEE+1, Max( 1, nbEE )) + shiftE ),
_isBase( isBase )
{
+ if ( setVV )
+ {
+ Vertex( 0 );
+ Vertex( 1 );
+ }
}
EdgeWithNeighbors() {}
bool IsInternal() const { return !_edge.IsNull() && _edge.Orientation() == TopAbs_INTERNAL; }
+ bool IsConnected( const EdgeWithNeighbors& edge, int iEnd ) const
+ {
+ return (( _vv[ iEnd ].IsSame( edge._vv[ 1 - iEnd ])) ||
+ ( IsInternal() && _vv[ iEnd ].IsSame( edge._vv[ iEnd ])));
+ }
+ bool IsConnected( const std::vector< EdgeWithNeighbors > & edges, int iEnd ) const
+ {
+ int iEdge = iEnd ? _iRE : _iLE;
+ return iEdge == _iE ? false : IsConnected( edges[ iEdge ], iEnd );
+ }
+ const TopoDS_Vertex& Vertex( int iEnd )
+ {
+ if ( _vv[ iEnd ].IsNull() )
+ _vv[ iEnd ] = SMESH_MesherHelper::IthVertex( iEnd, _edge );
+ return _vv[ iEnd ];
+ }
};
- // PrismSide contains all FACEs linking a bottom EDGE with a top one.
- struct PrismSide
+ // PrismSide contains all FACEs linking a bottom EDGE with a top one.
+ struct PrismSide
{
TopoDS_Face _face; // a currently treated upper FACE
TopTools_IndexedMapOfShape *_faces; // all FACEs (pointer because of a private copy constructor)
PrismSide *_leftSide; // neighbor sides
PrismSide *_rightSide;
bool _isInternal; // whether this side raises from an INTERNAL EDGE
- void SetExcluded() { _leftSide = _rightSide = NULL; }
- bool IsExcluded() const { return !_leftSide; }
+ //void SetExcluded() { _leftSide = _rightSide = NULL; }
+ //bool IsExcluded() const { return !_leftSide; }
const TopoDS_Edge& Edge( int i ) const
{
return (*_edges)[ i ]._edge;
if ( E.IsSame( Edge( i ))) return i;
return -1;
}
- bool IsSideFace( const TopoDS_Shape& face, const bool checkNeighbors ) const
+ const TopoDS_Vertex& Vertex( int iE, int iEnd ) const
{
- if ( _faces->Contains( face )) // avoid returning true for a prism top FACE
- return ( !_face.IsNull() || !( face.IsSame( _faces->FindKey( _faces->Extent() ))));
-
+ return (*_edges)[ iE ].Vertex( iEnd );
+ }
+ bool HasVertex( const TopoDS_Vertex& V ) const
+ {
+ for ( size_t i = 0; i < _edges->size(); ++i )
+ if ( V.IsSame( Vertex( i, 0 ))) return true;
+ return false;
+ }
+ bool IsSideFace( const TopTools_ListOfShape& faces,
+ const TopoDS_Face& avoidFace,
+ const bool checkNeighbors ) const
+ {
+ TopTools_ListIteratorOfListOfShape faceIt( faces );
+ for ( ; faceIt.More(); faceIt.Next() )
+ {
+ const TopoDS_Shape& face = faceIt.Value();
+ if ( !face.IsSame( avoidFace ))
+ {
+ if ( _faces->Contains( face )) // avoid returning true for a prism top FACE
+ return ( !_face.IsNull() || !( face.IsSame( _faces->FindKey( _faces->Extent() ))));
+ }
+ }
if ( checkNeighbors )
- return (( _leftSide && _leftSide->IsSideFace ( face, false )) ||
- ( _rightSide && _rightSide->IsSideFace( face, false )));
+ return (( _leftSide && _leftSide->IsSideFace ( faces, avoidFace, false )) ||
+ ( _rightSide && _rightSide->IsSideFace( faces, avoidFace, false )));
return false;
}
* \brief Return another faces sharing an edge
*/
const TopoDS_Face & getAnotherFace( const TopoDS_Face& face,
- const TopoDS_Edge& edge,
- TopTools_IndexedDataMapOfShapeListOfShape& facesOfEdge)
+ const TopTools_ListOfShape& faces)
{
- TopTools_ListIteratorOfListOfShape faceIt( facesOfEdge.FindFromKey( edge ));
+ TopTools_ListIteratorOfListOfShape faceIt( faces );
for ( ; faceIt.More(); faceIt.Next() )
if ( !face.IsSame( faceIt.Value() ))
return TopoDS::Face( faceIt.Value() );
return face;
}
+ //--------------------------------------------------------------------------------
+ /*!
+ * \brief Return another faces sharing an edge
+ */
+ const TopoDS_Face & getAnotherFace( const TopoDS_Face& face,
+ const TopoDS_Edge& edge,
+ TopTools_IndexedDataMapOfShapeListOfShape& facesOfEdge)
+ {
+ return getAnotherFace( face, facesOfEdge.FindFromKey( edge ));
+ }
//--------------------------------------------------------------------------------
/*!
* \brief Return ordered edges of a face
*/
+ //================================================================================
+ /*!
+ * \brief Return ordered edges of a face
+ * \param [in] face - the face
+ * \param [out] edges - return edge (edges from which no vertical faces raise excluded)
+ * \param [in] facesOfEdge - faces of each edge
+ * \param [in] noHolesAllowed - are multiple wires allowed
+ */
+ //================================================================================
+
bool getEdges( const TopoDS_Face& face,
vector< EdgeWithNeighbors > & edges,
TopTools_IndexedDataMapOfShapeListOfShape& facesOfEdge,
if ( nbW > 1 && noHolesAllowed )
return false;
- int iE, nbTot = 0, nbBase, iBase;
list< TopoDS_Edge >::iterator e = ee.begin();
list< int >::iterator nbE = nbEdgesInWires.begin();
for ( ; nbE != nbEdgesInWires.end(); ++nbE )
- for ( iE = 0; iE < *nbE; ++e, ++iE )
+ for ( int iE = 0; iE < *nbE; ++e, ++iE )
if ( SMESH_Algo::isDegenerated( *e )) // degenerated EDGE is never used
{
e = --ee.erase( e );
--iE;
}
+ int iE, nbTot = 0, iBase, nbBase, nbTotBase = 0;
vector<int> isBase;
edges.clear();
e = ee.begin();
}
for ( iBase = 0, iE = 0; iE < *nbE; ++e, ++iE )
{
- edges.push_back( EdgeWithNeighbors( *e, iBase, nbBase, nbTot, isBase[ iE ] ));
+ edges.push_back( EdgeWithNeighbors( *e,
+ iBase, nbBase, nbTotBase,
+ iE, *nbE, nbTot,
+ isBase[ iE ], nbW > 1 ));
iBase += isBase[ iE ];
}
- nbTot += nbBase;
+ nbTot += *nbE;
+ nbTotBase += nbBase;
}
- if ( nbTot == 0 )
+ if ( nbTotBase == 0 )
return false;
- // IPAL53099. Set correct neighbors to INTERNAL EDGEs, which can be connected to
- // EDGEs of the outer WIRE but this fact can't be detected by their order.
+ // IPAL53099, 54416. Set correct neighbors to INTERNAL EDGEs
if ( nbW > 1 )
{
int iFirst = 0, iLast;
for ( nbE = nbEdgesInWires.begin(); nbE != nbEdgesInWires.end(); ++nbE )
{
iLast = iFirst + *nbE - 1;
- TopoDS_Vertex vv[2] = { SMESH_MesherHelper::IthVertex( 0, edges[ iFirst ]._edge ),
- SMESH_MesherHelper::IthVertex( 1, edges[ iLast ]._edge ) };
- bool isConnectOk = ( vv[0].IsSame( vv[1] ));
+ bool isConnectOk = ( edges[ iFirst ].IsConnected( edges, 0 ) &&
+ edges[ iFirst ].IsConnected( edges, 1 ));
if ( !isConnectOk )
{
- edges[ iFirst ]._iL = edges[ iFirst ]._iBase; // connect to self
- edges[ iLast ]._iR = edges[ iLast ]._iBase;
-
- // look for an EDGE of the outer WIREs connected to vv
- TopoDS_Vertex v0, v1;
- for ( iE = 0; iE < iFirst; ++iE )
+ for ( iE = iFirst; iE <= iLast; ++iE )
{
- v0 = SMESH_MesherHelper::IthVertex( 0, edges[ iE ]._edge );
- v1 = SMESH_MesherHelper::IthVertex( 1, edges[ iE ]._edge );
- if ( vv[0].IsSame( v0 ) || vv[0].IsSame( v1 ))
- edges[ iFirst ]._iL = edges[ iE ]._iBase;
- if ( vv[1].IsSame( v0 ) || vv[1].IsSame( v1 ))
- edges[ iLast ]._iR = edges[ iE ]._iBase;
+ if ( !edges[ iE ]._isBase )
+ continue;
+ int* iNei[] = { & edges[ iE ]._iL,
+ & edges[ iE ]._iR };
+ for ( int iV = 0; iV < 2; ++iV )
+ {
+ if ( edges[ iE ].IsConnected( edges, iV ))
+ continue; // Ok - connected to a neighbor EDGE
+
+ // look for a connected EDGE
+ bool found = false;
+ for ( int iE2 = 0, nbE = edges.size(); iE2 < nbE && !found; ++iE2 )
+ if (( iE2 != iE ) &&
+ ( found = edges[ iE ].IsConnected( edges[ iE2 ], iV )))
+ {
+ *iNei[ iV ] = edges[ iE2 ]._iBase;
+ }
+ if ( !found )
+ *iNei[ iV ] = edges[ iE ]._iBase; // connect to self
+ }
}
}
iFirst += *nbE;
}
return edges.size();
}
-
+
//--------------------------------------------------------------------------------
/*!
* \brief Return number of faces sharing given edges
}
bool isOK = true; // ok for a current botF
- bool isAdvanced = true; // is new data found in a current loop
+ bool hasAdvanced = true; // is new data found in a current loop
int nbFoundSideFaces = 0;
- for ( int iLoop = 0; isOK && isAdvanced; ++iLoop )
+ for ( int iLoop = 0; isOK && hasAdvanced; ++iLoop )
{
- isAdvanced = false;
+ hasAdvanced = false;
for ( size_t iS = 0; iS < sides.size() && isOK; ++iS )
{
PrismSide& side = sides[ iS ];
// find vertical EDGEs --- EDGEs shared with neighbor side FACEs
for ( int is2nd = 0; is2nd < 2 && isOK; ++is2nd ) // 2 adjacent neighbors
{
- int di = is2nd ? 1 : -1;
const PrismSide* adjSide = is2nd ? side._rightSide : side._leftSide;
+ if ( side._isInternal )
+ {
+ const TopoDS_Vertex& V = side.Vertex( side._iBotEdge, is2nd );
+ bool lHasV = side._leftSide ->HasVertex( V );
+ bool rHasV = side._rightSide->HasVertex( V );
+ if ( lHasV == rHasV )
+ adjSide = ( &side == side._leftSide ) ? side._rightSide : side._leftSide;
+ else
+ adjSide = ( rHasV ) ? side._rightSide : side._leftSide;
+ }
+ int di = is2nd ? 1 : -1;
for ( size_t i = 1; i < side._edges->size(); ++i )
{
int iE = SMESH_MesherHelper::WrapIndex( i*di + side._iBotEdge, side._edges->size());
if ( side._isCheckedEdge[ iE ] ) continue;
- const TopoDS_Edge& vertE = side.Edge( iE );
- const TopoDS_Shape& neighborF = getAnotherFace( side._face, vertE, facesOfEdge );
- bool isEdgeShared = (( adjSide->IsSideFace( neighborF, side._isInternal )) ||
- ( adjSide == &side && neighborF.IsSame( side._face )) );
+ const TopoDS_Edge& vertE = side.Edge( iE );
+ const TopTools_ListOfShape& neighborFF = facesOfEdge.FindFromKey( vertE );
+ bool isEdgeShared = (( adjSide->IsSideFace( neighborFF, side._face,
+ side._isInternal )) ||
+ ( adjSide == &side &&
+ side._face.IsSame( getAnotherFace( side._face,
+ neighborFF ))));
if ( isEdgeShared ) // vertE is shared with adjSide
{
- isAdvanced = true;
+ hasAdvanced = true;
side._isCheckedEdge[ iE ] = true;
side._nbCheckedEdges++;
int nbNotCheckedE = side._edges->size() - side._nbCheckedEdges;
const int nbE = side._edges->size();
if ( nbE >= 4 )
{
- isAdvanced = true;
+ hasAdvanced = true;
++nbFoundSideFaces;
side._iBotEdge = side.FindEdge( side._topEdge );
side._isCheckedEdge.clear();
cerr << "BUG: infinite loop in StdMeshers_Prism_3D::IsApplicable()" << endl;
#endif
}
- } // while isAdvanced
+ } // while hasAdvanced
if ( isOK && sides[0]._faces->Extent() > 1 )
{
}
else
{
+ // check that all face columns end up at the same top face
const TopoDS_Shape& topFace = sides[0]._faces->FindKey( nbFaces );
size_t iS;
for ( iS = 1; iS < sides.size(); ++iS )
if ( ! sides[ iS ]._faces->Contains( topFace ))
break;
- prismDetected = ( iS == sides.size() );
+ if (( prismDetected = ( iS == sides.size() )))
+ {
+ // check that bottom and top faces has equal nb of edges
+ TEdgeWithNeighborsVec& topEdges = faceEdgesVec[ allFaces.FindIndex( topFace )];
+ if ( topEdges.empty() )
+ getEdges( TopoDS::Face( topFace ), topEdges, facesOfEdge, /*noHoles=*/false );
+ prismDetected = ( botEdges.size() == topEdges.size() );
+ }
}
}
} // loop on allFaces
myBottomEdges.clear();
myNbEdgesInWires.clear();
myWallQuads.clear();
+ myAlgoSM = nullptr;
}
//================================================================================
SMESH_Block::init();
myShapeIDMap.Clear();
myShapeIndex2ColumnMap.clear();
-
+
int wallFaceIds[ NB_WALL_FACES ] = { // to walk around a block
SMESH_Block::ID_Fx0z, SMESH_Block::ID_F1yz,
SMESH_Block::ID_Fx1z, SMESH_Block::ID_F0yz
if ( p0.SquareDistance( pz ) > tol2 )
{
t = gp_Trsf();
- return ( z == zSize - 1 ); // OK if fails only botton->top trsf
+ return ( z == zSize - 1 ); // OK if fails only bottom->top trsf
}
}
}
//================================================================================
/*!
- * \brief Check curve orientation of a bootom edge
+ * \brief Check curve orientation of a bottom edge
* \param meshDS - mesh DS
* \param columnsMap - node columns map of side face
- * \param bottomEdge - the bootom edge
+ * \param bottomEdge - the bottom edge
* \param sideFaceID - side face in-block ID
- * \retval bool - true if orientation coinside with in-block forward orientation
+ * \retval bool - true if orientation coincide with in-block forward orientation
*/
//================================================================================
<< n << ", " << n+1 << ", "
<< n+nb+2 << ", " << n+nb+1 << "]) " << endl;
}
-
+#else
+ (void)face; // unused in release mode
+ (void)nb; // unused in release mode
#endif
}
//================================================================================
/*!
* \brief Return geometry of the top or bottom curve
- * \param isTop -
- * \retval Adaptor3d_Curve* -
+ * \param isTop -
+ * \retval Adaptor3d_Curve* -
*/
//================================================================================
meshDS->IndexToShape( notFaceID2 ),
*myHelper.GetMesh(),
TopAbs_FACE );
- if ( face.IsNull() )
+ if ( face.IsNull() )
throw SALOME_Exception("StdMeshers_PrismAsBlock::TSideFace::Value() face.IsNull()");
int faceID = meshDS->ShapeToIndex( face );
me->mySurface = me->myShapeID2Surf[ faceID ];
column = & ( myParamToColumnMap->rbegin()->second );
else
column = & ( myParamToColumnMap->begin()->second );
- if ( column->size() > 0 )
+ if ( column->size() > 1 )
edge = myHelper.GetSubShapeByNode( (*column)[ 1 ], meshDS );
if ( edge.IsNull() || edge.ShapeType() == TopAbs_VERTEX )
node = column->front();
if ( v1.ShapeType() == TopAbs_VERTEX ) {
nbInserted += SMESH_Block::Insert( v1, vertIdVec[ 1 ], shapeMap);
}
-
+
// from V1 column
SMESH_Block::GetEdgeVertexIDs( edgeIdVec[ V1_EDGE ], vertIdVec);
GetColumns(1, col1, col2 );
// if ( edgeID = edgeIdVec[ _v1 ]) edgeID = edgeIdVec[ _v0 ];
// else edgeID = edgeIdVec[ _v1 ];
// SMESH_Block::Insert( sideEdge, edgeID, shapeMap);
-
+
// // top edge
// TopoDS_Edge topEdge = GetEdge( TOP_EDGE );
// SMESH_Block::Insert( topEdge, edgeIdVec[ _u1 ], shapeMap);
TVerticalEdgeAdaptor* vSide1 = (TVerticalEdgeAdaptor*) VertiCurve(1);
cout << "Verti side 1: "; vSide1->dumpNodes(nbNodes); cout << endl;
delete hSize0; delete hSize1; delete vSide0; delete vSide1;
+#else
+ (void)nbNodes; // unused in release mode
#endif
}
//================================================================================
/*!
- * \brief Creates TVerticalEdgeAdaptor
+ * \brief Creates TVerticalEdgeAdaptor
* \param columnsMap - node column map
* \param parameter - normalized parameter
*/
cout << (*myNodeColumn)[i]->GetID() << " ";
if ( nbNodes < (int) myNodeColumn->size() )
cout << myNodeColumn->back()->GetID();
+#else
+ (void)nbNodes; // unused in release mode
#endif
}
TParam2ColumnIt col, col2;
TParam2ColumnMap* u2cols = side->GetColumns();
side->GetColumns( u , col, col2 );
-
+
int j, i = myV ? mySide->ColumnHeight()-1 : 0;
const SMDS_MeshNode* n = 0;
side->GetColumns( u , col, col2 );
if ( n != col->second[ i ] )
cout << col->second[ i ]->GetID();
+#else
+ (void)nbNodes; // unused in release mode
#endif
}
//================================================================================
/*!
- * \brief Costructor of TPCurveOnHorFaceAdaptor fills its map of
+ * \brief Constructor of TPCurveOnHorFaceAdaptor fills its map of
* normalized parameter to node UV on a horizontal face
* \param [in] sideFace - lateral prism side
* \param [in] isTop - is \a horFace top or bottom of the prism
}
if ( !C2d.IsNull() )
{
- double u = static_cast< const SMDS_EdgePosition* >( n->GetPosition() )->GetUParameter();
+ double u = SMDS_EdgePositionPtr( n->GetPosition() )->GetUParameter();
if ( f <= u && u <= l )
{
uv = C2d->Value( u ).XY();
for ( ++zS, --zT; zS < zTgt; ++zS, --zT ) // vertical loop on layers
{
// invert transformation
- if ( !trsfOfLayer[ zS+1 ].Invert() )
- trsfOfLayer[ zS+1 ] = NSProjUtils::TrsfFinder3D(); // to recompute
- if ( !trsfOfLayer[ zT-1 ].Invert() )
- trsfOfLayer[ zT-1 ] = NSProjUtils::TrsfFinder3D();
+ //if ( !trsfOfLayer[ zS+1 ].Invert() )
+ trsfOfLayer[ zS+1 ] = NSProjUtils::TrsfFinder3D(); // to recompute
+ //if ( !trsfOfLayer[ zT-1 ].Invert() )
+ trsfOfLayer[ zT-1 ] = NSProjUtils::TrsfFinder3D();
// project internal nodes and compute bnd error
for ( size_t iP = 0; iP < myBndColumns.size(); ++iP )
void StdMeshers_Sweeper::prepareTopBotDelaunay()
{
+ SMESH_MesherHelper* helper[2] = { myHelper, myHelper };
+ SMESH_MesherHelper botHelper( *myHelper->GetMesh() );
+ SMESH_MesherHelper topHelper( *myHelper->GetMesh() );
+ const SMDS_MeshNode* intBotNode = 0;
+ const SMDS_MeshNode* intTopNode = 0;
+ if ( myHelper->HasSeam() || myHelper->HasDegeneratedEdges() ) // use individual helpers
+ {
+ botHelper.SetSubShape( myBotFace );
+ topHelper.SetSubShape( myTopFace );
+ helper[0] = & botHelper;
+ helper[1] = & topHelper;
+ if ( !myIntColumns.empty() )
+ {
+ TNodeColumn& nodes = *myIntColumns[ myIntColumns.size()/2 ];
+ intBotNode = nodes[0];
+ intTopNode = nodes.back();
+ }
+ }
+
UVPtStructVec botUV( myBndColumns.size() );
UVPtStructVec topUV( myBndColumns.size() );
for ( size_t i = 0; i < myBndColumns.size(); ++i )
{
TNodeColumn& nodes = *myBndColumns[i];
botUV[i].node = nodes[0];
- botUV[i].SetUV( myHelper->GetNodeUV( myBotFace, nodes[0] ));
+ botUV[i].SetUV( helper[0]->GetNodeUV( myBotFace, nodes[0], intBotNode ));
topUV[i].node = nodes.back();
- topUV[i].SetUV( myHelper->GetNodeUV( myTopFace, nodes.back() ));
+ topUV[i].SetUV( helper[1]->GetNodeUV( myTopFace, nodes.back(), intTopNode ));
botUV[i].node->setIsMarked( true );
}
TopoDS_Edge dummyE;