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PAL11986. Add a new status to ErrorCode enum; thoroughly check if projection is needed

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eap 2006-03-27 09:32:41 +00:00
parent b786ae51b2
commit be1142b243
1 changed files with 82 additions and 26 deletions
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108
src/SMESH/SMESH_Pattern.cxx
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@ -509,34 +509,53 @@ static gp_XY project (const SMDS_MeshNode* theNode,
}
//=======================================================================
//function : isMeshBoundToShape
//purpose : return true if all 2d elements are bound to shape
//function : areNodesBound
//purpose : true if all nodes of faces are bound to shapes
//=======================================================================
static bool isMeshBoundToShape(SMESH_Mesh* theMesh)
template <class TFaceIterator> bool areNodesBound( TFaceIterator & faceItr )
{
// check faces binding
SMESHDS_Mesh * aMeshDS = theMesh->GetMeshDS();
SMESHDS_SubMesh * aMainSubMesh = aMeshDS->MeshElements( aMeshDS->ShapeToMesh() );
if ( aMeshDS->NbFaces() != aMainSubMesh->NbElements() )
return false;
// check face nodes binding
SMDS_FaceIteratorPtr fIt = aMeshDS->facesIterator();
while ( fIt->more() )
while ( faceItr->more() )
{
SMDS_ElemIteratorPtr nIt = fIt->next()->nodesIterator();
SMDS_ElemIteratorPtr nIt = faceItr->next()->nodesIterator();
while ( nIt->more() )
{
const SMDS_MeshNode* node = static_cast<const SMDS_MeshNode*>( nIt->next() );
SMDS_PositionPtr pos = node->GetPosition();
if ( !pos || !pos->GetShapeId() )
if ( !pos || !pos->GetShapeId() ) {
return false;
}
}
}
return true;
}
//=======================================================================
//function : isMeshBoundToShape
//purpose : return true if all 2d elements are bound to shape
// if aFaceSubmesh != NULL, then check faces bound to it
// else check all faces in aMeshDS
//=======================================================================
static bool isMeshBoundToShape(SMESHDS_Mesh * aMeshDS,
SMESHDS_SubMesh * aFaceSubmesh,
const bool isMainShape)
{
if ( isMainShape ) {
// check that all faces are bound to aFaceSubmesh
if ( aMeshDS->NbFaces() != aFaceSubmesh->NbElements() )
return false;
}
// check face nodes binding
if ( aFaceSubmesh ) {
SMDS_ElemIteratorPtr fIt = aFaceSubmesh->GetElements();
return areNodesBound( fIt );
}
SMDS_FaceIteratorPtr fIt = aMeshDS->facesIterator();
return areNodesBound( fIt );
}
//=======================================================================
//function : Load
//purpose : Create a pattern from the mesh built on <theFace>.
@ -573,32 +592,53 @@ bool SMESH_Pattern::Load (SMESH_Mesh* theMesh,
for ( ; elIt != eList.end() ; elIt++ )
if ( BRep_Tool::IsClosed( *elIt , face ))
return setErrorCode( ERR_LOADF_CLOSED_FACE );
// check that requested or needed projection is possible
bool isMainShape = theMesh->IsMainShape( face );
bool needProject = !isMeshBoundToShape( aMeshDS, fSubMesh, isMainShape );
bool canProject = ( nbElems ? true : isMainShape );
if ( ( theProject || needProject ) && !canProject )
return setErrorCode( ERR_LOADF_CANT_PROJECT );
Extrema_GenExtPS projector;
GeomAdaptor_Surface aSurface( BRep_Tool::Surface( face ));
if ( theProject || nbElems == 0 )
if ( theProject || needProject )
projector.Initialize( aSurface, 20,20, 1e-5,1e-5 );
int iPoint = 0;
TNodePointIDMap nodePointIDMap;
if ( nbElems == 0 || (theProject &&
theMesh->IsMainShape( face ) &&
!isMeshBoundToShape( theMesh )))
if ( needProject )
{
MESSAGE("Project the whole mesh");
MESSAGE("Project the submesh");
// ---------------------------------------------------------------
// The case where the whole mesh is projected to theFace
// The case where the submesh is projected to theFace
// ---------------------------------------------------------------
// put nodes of all faces in the nodePointIDMap and fill myElemPointIDs
SMDS_FaceIteratorPtr fIt = aMeshDS->facesIterator();
while ( fIt->more() )
// get all faces
list< const SMDS_MeshElement* > faces;
if ( nbElems > 0 ) {
SMDS_ElemIteratorPtr fIt = fSubMesh->GetElements();
while ( fIt->more() ) {
const SMDS_MeshElement* f = fIt->next();
if ( f && f->GetType() == SMDSAbs_Face )
faces.push_back( f );
}
}
else {
SMDS_FaceIteratorPtr fIt = aMeshDS->facesIterator();
while ( fIt->more() )
faces.push_back( fIt->next() );
}
// put nodes of all faces into the nodePointIDMap and fill myElemPointIDs
list< const SMDS_MeshElement* >::iterator fIt = faces.begin();
for ( ; fIt != faces.end(); ++fIt )
{
myElemPointIDs.push_back( TElemDef() );
TElemDef& elemPoints = myElemPointIDs.back();
SMDS_ElemIteratorPtr nIt = fIt->next()->nodesIterator();
SMDS_ElemIteratorPtr nIt = (*fIt)->nodesIterator();
while ( nIt->more() )
{
const SMDS_MeshElement* node = nIt->next();
@ -837,7 +877,21 @@ bool SMESH_Pattern::Load (SMESH_Mesh* theMesh,
double dU = maxU - minU, dV = maxV - minV;
if ( dU <= DBL_MIN || dV <= DBL_MIN ) {
Clear();
return setErrorCode( ERR_LOADF_NARROW_FACE );
bndBox.SetVoid();
// define where is the problem, in the face or in the mesh
TopExp_Explorer vExp( face, TopAbs_VERTEX );
for ( ; vExp.More(); vExp.Next() ) {
gp_Pnt2d uv = BRep_Tool::Parameters( TopoDS::Vertex( vExp.Current() ), face );
bndBox.Add( uv );
}
bndBox.Get( minU, minV, maxU, maxV );
dU = maxU - minU, dV = maxV - minV;
if ( dU <= DBL_MIN || dV <= DBL_MIN )
// face problem
return setErrorCode( ERR_LOADF_NARROW_FACE );
else
// mesh is projected onto a line, e.g.
return setErrorCode( ERR_LOADF_CANT_PROJECT );
}
double ratio = dU / dV, maxratio = 3, scale;
int iCoord = 0;
@ -4010,6 +4064,8 @@ bool SMESH_Pattern::findBoundaryPoints()
MESSAGE(" findBoundaryPoints() ");
myNbKeyPntInBoundary.clear();
if ( myIs2D )
{
set< TPoint* > pointsInElems;