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Try to use length of edges for association in case of a 2-edges wire

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eap 2012-10-10 10:48:10 +00:00
parent bd01d75a47
commit 2c8f4c513e
1 changed files with 22 additions and 1 deletions
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23
src/StdMeshers/StdMeshers_ProjectionUtils.cxx
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@ -1237,6 +1237,7 @@ int StdMeshers_ProjectionUtils::FindFaceAssociation(const TopoDS_Face& face1,
{
bool OK = false;
list< int > nbEInW1, nbEInW2;
list< TopoDS_Edge >::iterator edgeIt;
int i_ok_wire_algo = -1;
for ( int outer_wire_algo = 0; outer_wire_algo < 2 && !OK; ++outer_wire_algo )
{
@ -1257,7 +1258,6 @@ int StdMeshers_ProjectionUtils::FindFaceAssociation(const TopoDS_Face& face1,
bool reverse = false;
list< TopoDS_Edge >::iterator edgeIt;
if ( !VV1[1].IsSame( TopExp::LastVertex( edges1.front(), true ))) {
reverse = true;
edgeIt = --edges1.end();
@ -1367,6 +1367,27 @@ int StdMeshers_ProjectionUtils::FindFaceAssociation(const TopoDS_Face& face1,
}
}
const int nbEdges = nbEInW1.front();
if ( OK && nbEdges == 2 )
{
// if a wire includes 2 edges, it's impossible to associate them using
// topological information only. Try to use length of edges for association.
double l1[2], l2[2];
edgeIt = edges1.begin();
l1[0] = SMESH_Algo::EdgeLength( *edgeIt++ );
l1[1] = SMESH_Algo::EdgeLength( *edgeIt++ );
if ( Abs( l1[0] - l1[1] ) > 0.1 * Max( l1[0], l1[1] ) )
{
edgeIt = edges2.begin();
l2[0] = SMESH_Algo::EdgeLength( *edgeIt++ );
l2[1] = SMESH_Algo::EdgeLength( *edgeIt++ );
if (( l1[0] < l1[1] ) != ( l2[0] < l2[1] ))
{
Reverse( edges2, nbEdges );
}
}
}
return OK ? nbEInW1.front() : 0;
}