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fix failure of non-regression test SMESH_TEST/Grids/smesh/mesh_Projection_2D/A1

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Let the helper set nodes on shape to avoid the pb with a medium nodes
 set by mistake to EDGE instead of FACE.
 The case is a triangle whose 3 nodes are on the same EDGE. The worst
 is that in this case the medium node which is logically on FACE falls
 to a straight EDGE, as the triangle is of zero area.
This commit is contained in:
eap 2013-03-01 14:37:03 +00:00
parent 9f9b9d6ceb
commit 3f790d0220
1 changed files with 14 additions and 23 deletions
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37
src/StdMeshers/StdMeshers_MEFISTO_2D.cxx
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@ -780,8 +780,7 @@ void StdMeshers_MEFISTO_2D::StoreResult(Z nbst, R2 * uvst, Z nbt, Z * nust,
vector< const SMDS_MeshNode*>&mefistoToDS,
double scalex, double scaley)
{
SMESHDS_Mesh * meshDS = _helper->GetMeshDS();
int faceID = _helper->GetSubShapeID();
_helper->SetElementsOnShape( true );
TopoDS_Face F = TopoDS::Face( _helper->GetSubShape() );
Handle(Geom_Surface) S = BRep_Tool::Surface( F );
@ -796,12 +795,7 @@ void StdMeshers_MEFISTO_2D::StoreResult(Z nbst, R2 * uvst, Z nbt, Z * nust,
double v = uvst[n][1] / scaley;
gp_Pnt P = S->Value(u, v);
SMDS_MeshNode * node = meshDS->AddNode(P.X(), P.Y(), P.Z());
meshDS->SetNodeOnFace(node, faceID, u, v);
//MESSAGE(P.X()<<" "<<P.Y()<<" "<<P.Z());
mefistoToDS[n] = node;
//MESSAGE("NEW: "<<n<<" "<<mefistoToDS[n+1]);
mefistoToDS[n] = _helper->AddNode( P.X(), P.Y(), P.Z(), 0, u, v );
}
}
@ -810,26 +804,23 @@ void StdMeshers_MEFISTO_2D::StoreResult(Z nbst, R2 * uvst, Z nbt, Z * nust,
// triangle points must be in trigonometric order if face is Forward
// else they must be put clockwise
bool triangleIsWellOriented = ( F.Orientation() == TopAbs_FORWARD );
int i1 = 1, i2 = 2;
if ( F.Orientation() != TopAbs_FORWARD )
std::swap( i1, i2 );
const SMDS_MeshNode * nn[3];
for (n = 1; n <= nbt; n++)
{
const SMDS_MeshNode * n1 = mefistoToDS[ nust[m++] - 1 ];
const SMDS_MeshNode * n2 = mefistoToDS[ nust[m++] - 1 ];
const SMDS_MeshNode * n3 = mefistoToDS[ nust[m++] - 1 ];
nn[ 0 ] = mefistoToDS[ nust[m++] - 1 ];
nn[ 1 ] = mefistoToDS[ nust[m++] - 1 ];
nn[ 2 ] = mefistoToDS[ nust[m++] - 1 ];
m++;
// avoid creating degenetrated faces
bool isDegen = ( _helper->HasDegeneratedEdges() && ( n1 == n2 || n1 == n3 || n2 == n3 ));
bool isDegen = ( _helper->HasDegeneratedEdges() &&
( nn[0] == nn[1] || nn[1] == nn[2] || nn[2] == nn[0] ));
if ( !isDegen )
{
SMDS_MeshElement * elt;
if (triangleIsWellOriented)
elt = _helper->AddFace(n1, n2, n3);
else
elt = _helper->AddFace(n1, n3, n2);
meshDS->SetMeshElementOnShape(elt, faceID);
}
m++;
_helper->AddFace( nn[0], nn[i1], nn[i2] );
}
// remove bad elements built on vertices shared by wires
@ -849,7 +840,7 @@ void StdMeshers_MEFISTO_2D::StoreResult(Z nbst, R2 * uvst, Z nbt, Z * nust,
nbSame++;
if (nbSame > 1) {
MESSAGE( "RM bad element " << elem->GetID());
meshDS->RemoveElement( elem );
_helper->GetMeshDS()->RemoveElement( elem );
}
}
}