return *( i_proj->second );
}
+//=======================================================================
+//function : GetSurface
+//purpose : Return a cached ShapeAnalysis_Surface of a FACE
+//=======================================================================
+
+Handle(ShapeAnalysis_Surface) SMESH_MesherHelper::GetSurface(const TopoDS_Face& F )
+{
+ Handle(Geom_Surface) surface = BRep_Tool::Surface( F );
+ int faceID = GetMeshDS()->ShapeToIndex( F );
+ TID2Surface::iterator i_surf = myFace2Surface.find( faceID );
+ if ( i_surf == myFace2Surface.end() && faceID )
+ {
+ Handle(ShapeAnalysis_Surface) surf( new ShapeAnalysis_Surface( surface ));
+ i_surf = myFace2Surface.insert( make_pair( faceID, surf )).first;
+ }
+ return i_surf->second;
+}
+
namespace
{
gp_XY AverageUV(const gp_XY& uv1, const gp_XY& uv2) { return ( uv1 + uv2 ) / 2.; }
{
F = TopoDS::Face(meshDS->IndexToShape( faceID = pos.first ));
uv[0] = GetNodeUV(F,n1,n2, force3d ? 0 : &uvOK[0]);
+ if ( HasDegeneratedEdges() && !force3d ) // IPAL52850 (degen VERTEX not at singularity)
+ {
+ // project middle point to a surface
+ SMESH_TNodeXYZ p1( n1 ), p2( n2 );
+ gp_Pnt pMid = 0.5 * ( p1 + p2 );
+ Handle(ShapeAnalysis_Surface) projector = GetSurface( F );
+ gp_Pnt2d uvMid;
+ if ( uvOK[0] )
+ uvMid = projector->NextValueOfUV( uv[0], pMid, BRep_Tool::Tolerance( F ));
+ else
+ uvMid = projector->ValueOfUV( pMid, getFaceMaxTol( F ));
+ if ( projector->Gap() * projector->Gap() < ( p1 - p2 ).SquareModulus() / 4 )
+ {
+ gp_Pnt pProj = projector->Value( uvMid );
+ n12 = meshDS->AddNode( pProj.X(), pProj.Y(), pProj.Z() );
+ meshDS->SetNodeOnFace( n12, faceID, uvMid.X(), uvMid.Y() );
+ myTLinkNodeMap.insert( make_pair ( link, n12 ));
+ return n12;
+ }
+ }
uv[1] = GetNodeUV(F,n2,n1, force3d ? 0 : &uvOK[1]);
}
else if ( pos.second == TopAbs_EDGE )