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try to project face nodes if node positions are invalid, report an

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error on their invalidity
This commit is contained in:
eap 2008-04-17 07:51:48 +00:00
parent c69cf27bd1
commit 25b744c11f
1 changed files with 26 additions and 5 deletions
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31
src/StdMeshers/StdMeshers_Projection_2D.cxx
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@ -47,6 +47,7 @@
#include "utilities.h"
#include <BRep_Tool.hxx>
#include <Bnd_B2d.hxx>
#include <TopExp.hxx>
#include <TopExp_Explorer.hxx>
#include <TopTools_ListIteratorOfListOfShape.hxx>
@ -369,7 +370,7 @@ bool StdMeshers_Projection_2D::Compute(SMESH_Mesh& theMesh, const TopoDS_Shape&
if ( !_sourceHypo )
return false;
SMESH_Mesh * srcMesh = _sourceHypo->GetSourceMesh();
SMESH_Mesh * srcMesh = _sourceHypo->GetSourceMesh();
SMESH_Mesh * tgtMesh = & theMesh;
if ( !srcMesh )
srcMesh = tgtMesh;
@ -412,9 +413,28 @@ bool StdMeshers_Projection_2D::Compute(SMESH_Mesh& theMesh, const TopoDS_Shape&
// Prepare to mapping
// --------------------
SMESH_MesherHelper helper( theMesh );
helper.SetSubShape( tgtFace );
// Check if node projection to a face is needed
Bnd_B2d uvBox;
SMDS_ElemIteratorPtr faceIt = srcSubMesh->GetSubMeshDS()->GetElements();
for ( int nbN = 0; nbN < 3 && faceIt->more(); ) {
const SMDS_MeshElement* face = faceIt->next();
SMDS_ElemIteratorPtr nodeIt = face->nodesIterator();
while ( nodeIt->more() ) {
const SMDS_MeshNode* node = static_cast<const SMDS_MeshNode*>( nodeIt->next() );
if ( node->GetPosition()->GetTypeOfPosition() == SMDS_TOP_FACE ) {
nbN++;
uvBox.Add( helper.GetNodeUV( srcFace, node ));
}
}
}
const bool toProjectNodes = ( uvBox.IsVoid() || uvBox.SquareExtent() < DBL_MIN );
// Load pattern from the source face
SMESH_Pattern mapper;
mapper.Load( srcMesh, srcFace );
mapper.Load( srcMesh, srcFace, toProjectNodes );
if ( mapper.GetErrorCode() != SMESH_Pattern::ERR_OK )
return error(COMPERR_BAD_INPUT_MESH,"Can't load mesh pattern from the source face");
@ -484,9 +504,6 @@ bool StdMeshers_Projection_2D::Compute(SMESH_Mesh& theMesh, const TopoDS_Shape&
SMESH_MeshEditor editor( tgtMesh );
SMESH_MeshEditor::TListOfListOfNodes groupsOfNodes;
SMESH_MesherHelper helper( theMesh );
helper.SetSubShape( tgtFace );
// Make groups of nodes to merge
// loop on edge and vertex submeshes of a target face
@ -571,7 +588,11 @@ bool StdMeshers_Projection_2D::Compute(SMESH_Mesh& theMesh, const TopoDS_Shape&
// Merge
int nbFaceBeforeMerge = tgtSubMesh->GetSubMeshDS()->NbElements();
editor.MergeNodes( groupsOfNodes );
int nbFaceAtferMerge = tgtSubMesh->GetSubMeshDS()->NbElements();
if ( nbFaceBeforeMerge != nbFaceAtferMerge )
return error(COMPERR_BAD_INPUT_MESH, "Probably invalid node parameters on geom faces");
// ---------------------------
// Check elements orientation