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bos #29395 EDF 25009 - import1D2D mesh fails

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This commit is contained in:
eap 2022-03-22 16:31:40 +03:00
parent 6938ef133c
commit b881b9c7b9
4 changed files with 104 additions and 47 deletions
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7
src/Controls/SMESH_Controls.cxx
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@ -4453,9 +4453,12 @@ SMDSAbs_ElementType ElementsOnShape::GetType() const
void ElementsOnShape::SetTolerance (const double theToler)
{
if (myToler != theToler) {
if (myToler != theToler)
{
myToler = theToler;
SetShape(myShape, myType);
TopoDS_Shape s = myShape;
myShape.Nullify();
SetShape( s, myType );
}
}

78
src/SMESH/SMESH_MesherHelper.cxx
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@ -51,6 +51,7 @@
#include <Geom_RectangularTrimmedSurface.hxx>
#include <Geom_Surface.hxx>
#include <ShapeAnalysis.hxx>
#include <ShapeAnalysis_Curve.hxx>
#include <TopExp.hxx>
#include <TopExp_Explorer.hxx>
#include <TopTools_ListIteratorOfListOfShape.hxx>
@ -875,6 +876,51 @@ GeomAPI_ProjectPointOnSurf& SMESH_MesherHelper::GetProjector(const TopoDS_Face&
return *( i_proj->second );
}
//=======================================================================
//function : GetProjector
//purpose : Return projector initialized by given face, which is returned
//=======================================================================
GeomAPI_ProjectPointOnSurf& SMESH_MesherHelper::GetProjector(const TopoDS_Face& F,
double tol ) const
{
Handle(Geom_Surface) surface = BRep_Tool::Surface( F );
int faceID = GetMeshDS()->ShapeToIndex( F );
TID2ProjectorOnSurf& i2proj = const_cast< TID2ProjectorOnSurf&>( myFace2Projector );
TID2ProjectorOnSurf::iterator i_proj = i2proj.find( faceID );
if ( i_proj == i2proj.end() )
{
if ( tol == 0 ) tol = BRep_Tool::Tolerance( F );
double U1, U2, V1, V2;
surface->Bounds(U1, U2, V1, V2);
GeomAPI_ProjectPointOnSurf* proj = new GeomAPI_ProjectPointOnSurf();
proj->Init( surface, U1, U2, V1, V2, tol );
i_proj = i2proj.insert( make_pair( faceID, proj )).first;
}
return *( i_proj->second );
}
//=======================================================================
//function : GetPCProjector
//purpose : Return projector initialized by given EDGE
//=======================================================================
GeomAPI_ProjectPointOnCurve& SMESH_MesherHelper::GetPCProjector(const TopoDS_Edge& E ) const
{
int edgeID = GetMeshDS()->ShapeToIndex( E );
TID2ProjectorOnCurve& i2proj = const_cast< TID2ProjectorOnCurve&>( myEdge2Projector );
TID2ProjectorOnCurve::iterator i_proj = i2proj.insert( make_pair( edgeID, nullptr )).first;
if ( !i_proj->second )
{
double f,l;
Handle(Geom_Curve) curve = BRep_Tool::Curve( E,f,l );
i_proj->second = new GeomAPI_ProjectPointOnCurve();
i_proj->second->Init( curve, f, l );
}
GeomAPI_ProjectPointOnCurve* projector = i_proj->second;
return *projector;
}
//=======================================================================
//function : GetSurface
//purpose : Return a cached ShapeAnalysis_Surface of a FACE
@ -1121,27 +1167,17 @@ bool SMESH_MesherHelper::CheckNodeU(const TopoDS_Edge& E,
{
setPosOnShapeValidity( shapeID, false );
// u incorrect, project the node to the curve
int edgeID = GetMeshDS()->ShapeToIndex( E );
TID2ProjectorOnCurve& i2proj = const_cast< TID2ProjectorOnCurve&>( myEdge2Projector );
TID2ProjectorOnCurve::iterator i_proj =
i2proj.insert( make_pair( edgeID, (GeomAPI_ProjectPointOnCurve*) 0 )).first;
if ( !i_proj->second )
{
i_proj->second = new GeomAPI_ProjectPointOnCurve();
i_proj->second->Init( curve, f, l );
}
GeomAPI_ProjectPointOnCurve* projector = i_proj->second;
projector->Perform( nodePnt );
if ( projector->NbPoints() < 1 )
{
MESSAGE( "SMESH_MesherHelper::CheckNodeU() failed to project" );
return false;
}
Standard_Real U = projector->LowerDistanceParameter();
u = double( U );
curvPnt = curve->Value( u );
dist = nodePnt.Distance( curvPnt );
//GeomAPI_ProjectPointOnCurve& projector = GetPCProjector( E ); -- bug in OCCT-7.5.3p1
GeomAdaptor_Curve curveAd( curve, f, l );
ShapeAnalysis_Curve projector;
dist = projector.Project( curveAd, nodePnt, tol, curvPnt, u, false );
// if ( projector.NbPoints() < 1 )
// {
// MESSAGE( "SMESH_MesherHelper::CheckNodeU() failed to project" );
// return false;
// }
if ( distXYZ ) {
curvPnt = curve->Value( u );
curvPnt.Transform( loc );
distXYZ[0] = dist;
distXYZ[1] = curvPnt.X(); distXYZ[2] = curvPnt.Y(); distXYZ[3]=curvPnt.Z();
@ -1154,7 +1190,7 @@ bool SMESH_MesherHelper::CheckNodeU(const TopoDS_Edge& E,
// store the fixed U on the edge
if ( myShape.IsSame(E) && shapeID == myShapeID && myFixNodeParameters )
const_cast<SMDS_MeshNode*>(n)->SetPosition
( SMDS_PositionPtr( new SMDS_EdgePosition( U )));
( SMDS_PositionPtr( new SMDS_EdgePosition( u )));
}
else if ( fabs( u ) > numeric_limits<double>::min() )
{

13
src/SMESH/SMESH_MesherHelper.hxx
View File

@ -554,11 +554,20 @@ public:
bool GetNodeUVneedInFaceNode(const TopoDS_Face& F = TopoDS_Face()) const;
/*!
* \brief Return projector initialized by given face without location, which is returned
* \brief Return projector initialized by given face without location
*/
GeomAPI_ProjectPointOnSurf& GetProjector(const TopoDS_Face& F,
TopLoc_Location& loc,
double tol=0 ) const;
double tol=0 ) const;
/*!
* \brief Return projector initialized by given face
*/
GeomAPI_ProjectPointOnSurf& GetProjector(const TopoDS_Face& F,
double tol=0 ) const;
/*!
* \brief Return projector initialized by given EDGE
*/
GeomAPI_ProjectPointOnCurve& GetPCProjector(const TopoDS_Edge& E ) const;
/*!
* \brief Return a cached ShapeAnalysis_Surface of a FACE
*/

53
src/StdMeshers/StdMeshers_Import_1D2D.cxx
View File

@ -201,7 +201,7 @@ bool StdMeshers_Import_1D2D::Compute(SMESH_Mesh & theMesh, const TopoDS_Shape &
gp_Pnt p; gp_Vec du, dv;
// BRepClass_FaceClassifier is most time consuming, so minimize its usage
const double clsfTol = 10 * BRep_Tool::Tolerance( geomFace );
const double clsfTol = 1e2 * BRep_Tool::MaxTolerance( geomFace, TopAbs_VERTEX );
BRepTopAdaptor_FClass2d classifier( geomFace, clsfTol ); //Brimless_FaceClassifier classifier;
Bnd_B2d bndBox2d;
Bnd_Box bndBox3d;
@ -274,7 +274,6 @@ bool StdMeshers_Import_1D2D::Compute(SMESH_Mesh & theMesh, const TopoDS_Shape &
double minGroupTol = Precision::Infinite();
SMESH::Controls::ElementsOnShape onEdgeClassifier;
if ( helper.HasSeam() )
{
TopoDS_Compound edgesCompound;
BRep_Builder builder;
@ -316,8 +315,9 @@ bool StdMeshers_Import_1D2D::Compute(SMESH_Mesh & theMesh, const TopoDS_Shape &
// another idea: try to use max tol of all edges
//const double clsfTol = 10 * BRep_Tool::Tolerance( geomFace ); // 0.1 * groupTol;
if ( helper.HasSeam() )
onEdgeClassifier.SetMesh( srcMesh->GetMeshDS() );
onEdgeClassifier.SetMesh( srcMesh->GetMeshDS() );
onEdgeClassifier.SetTolerance( groupTol / 10 );
SMDS_ElemIteratorPtr srcElems = srcGroup->GetElements();
while ( srcElems->more() ) // loop on group contents
@ -373,15 +373,18 @@ bool StdMeshers_Import_1D2D::Compute(SMESH_Mesh & theMesh, const TopoDS_Shape &
{
// find out if node lies on the surface of theShape
gp_XY uv( Precision::Infinite(), 0 );
isOut = ( !helper.CheckNodeUV( geomFace, node, uv, groupTol, /*force=*/true ) ||
bndBox2d.IsOut( uv ));
bool isOutBox = true;
isOut = (! helper.CheckNodeUV( geomFace, node, uv, groupTol, /*force=*/true ) ||
( isOutBox = bndBox2d.IsOut( uv )));
//int iCoo;
if ( !isOut && !isIn ) // classify
{
nodeState[i] = classifier.Perform( uv ); //classifier.Perform( geomFace, uv, clsfTol );
//nodeState[i] = classifier.State();
isOut = ( nodeState[i] == TopAbs_OUT );
if ( isOut && helper.IsOnSeam( uv ) && onEdgeClassifier.IsSatisfy( node->GetID() ))
if (( isOut ) &&
( !isOutBox || helper.IsOnSeam( uv )) &&
onEdgeClassifier.IsSatisfy( node->GetID() ))
{
// uv.SetCoord( iCoo, helper.GetOtherParam( uv.Coord( iCoo )));
// classifier.Perform( geomFace, uv, clsfTol );
@ -396,7 +399,7 @@ bool StdMeshers_Import_1D2D::Compute(SMESH_Mesh & theMesh, const TopoDS_Shape &
newNode = tgtMesh->AddNode( nXYZ.X(), nXYZ.Y(), nXYZ.Z());
tgtMesh->SetNodeOnFace( newNode, shapeID, uv.X(), uv.Y() );
nbCreatedNodes++;
if ( newNode->GetID() >= (int) isNodeIn.size() )
if ( newNode->GetID() >= (smIdType) isNodeIn.size() )
{
isNodeIn.push_back( false ); // allow allocate more than newNode->GetID()
isNodeIn.resize( newNode->GetID() + 1, false );
@ -565,7 +568,6 @@ bool StdMeshers_Import_1D2D::Compute(SMESH_Mesh & theMesh, const TopoDS_Shape &
// the imported mesh is valid if all external links (encountered once)
// lie on geom edges
subShapeIDs.erase( shapeID ); // to contain edges and vertices only
double u, f, l;
for ( link2Nb = linkCount.begin(); link2Nb != linkCount.end(); ++link2Nb)
{
const TLink& link = (*link2Nb).first;
@ -580,17 +582,12 @@ bool StdMeshers_Import_1D2D::Compute(SMESH_Mesh & theMesh, const TopoDS_Shape &
const SMDS_MeshNode* n = is1stN ? link.node1() : link.node2();
if ( !subShapeIDs.count( n->getshapeId() )) // n is assigned to FACE
{
for ( size_t iE = 0; iE < edges.size(); ++iE )
if ( helper.CheckNodeU( edges[iE], n, u=0, projTol, /*force=*/true ))
{
BRep_Tool::Range(edges[iE],f,l);
if ( Abs(u-f) < 2 * faceTol || Abs(u-l) < 2 * faceTol )
// duplicated node on vertex
return error("Source elements overlap one another");
tgtFaceSM->RemoveNode( n );
tgtMesh->SetNodeOnEdge( n, edges[iE], u );
break;
}
TopoDS_Shape edge;
if ( onEdgeClassifier.IsSatisfy( n, &edge ))
{
tgtFaceSM->RemoveNode( n );
tgtMesh->SetNodeOnEdge( n, TopoDS::Edge(edge), /*u=*/0 );
}
nodesOnBoundary = subShapeIDs.count( n->getshapeId());
}
if ( nodesOnBoundary )
@ -638,6 +635,7 @@ bool StdMeshers_Import_1D2D::Compute(SMESH_Mesh & theMesh, const TopoDS_Shape &
{
edge = tgtMesh->AddEdge( newNodes[0], newNodes[1], link._medium );
double u;
TopoDS_Edge geomEdge = TopoDS::Edge(bndShapes.back());
helper.CheckNodeU( geomEdge, link._medium, u, projTol, /*force=*/true );
tgtFaceSM->RemoveNode( link._medium );
@ -710,6 +708,7 @@ bool StdMeshers_Import_1D2D::Compute(SMESH_Mesh & theMesh, const TopoDS_Shape &
TUNodeList nodesOnSeam;
double u = helper.GetNodeU( seamEdge, vertNode );
nodesOnSeam.push_back( make_pair( u, vertNode ));
size_t nbNodesOnSeam = 1;
TUNodeList::iterator u2nIt = nodesOnSeam.begin();
for ( ; u2nIt != nodesOnSeam.end(); ++u2nIt )
{
@ -723,8 +722,9 @@ bool StdMeshers_Import_1D2D::Compute(SMESH_Mesh & theMesh, const TopoDS_Shape &
{
const SMDS_MeshNode* n = face->GetNode( i );
if ( n == startNode || !checkedNodes.insert( n ).second ) continue;
if ( helper.CheckNodeU( seamEdge, n, u=0, projTol, /*force=*/true ))
nodesOnSeam.push_back( make_pair( u, n ));
helper.CheckNodeU( seamEdge, n, u=0, projTol, /*force=*/true );
nodesOnSeam.push_back( make_pair( u, n ));
++nbNodesOnSeam;
}
}
}
@ -733,6 +733,15 @@ bool StdMeshers_Import_1D2D::Compute(SMESH_Mesh & theMesh, const TopoDS_Shape &
map< double, const SMDS_MeshNode* > u2nodeMap;
for ( u2nIt = nodesOnSeam.begin(); u2nIt != nodesOnSeam.end(); ++u2nIt )
u2nodeMap.insert( u2nodeMap.end(), *u2nIt );
if ( u2nodeMap.size() != nbNodesOnSeam ) // problem with parameters on EDGE
{
// sort nodes by distance from seamVertex
gp_Pnt vertPnt = SMESH_NodeXYZ( vertNode );
u2nodeMap.clear();
for ( u2nIt = nodesOnSeam.begin(); u2nIt != nodesOnSeam.end(); ++u2nIt )
u2nodeMap.insert
({ vertPnt.SquareDistance( SMESH_NodeXYZ( u2nIt->second )), u2nIt->second });
}
// create edges
{