#include <BRepAdaptor_Surface.hxx>
#include <BRepTools.hxx>
#include <BRep_Tool.hxx>
+#include <BRepTools_WireExplorer.hxx>
#include <Geom2d_Curve.hxx>
#include <Geom_Curve.hxx>
#include <Geom_Surface.hxx>
+#include <ShapeAnalysis.hxx>
+#include <TopExp.hxx>
#include <TopExp_Explorer.hxx>
+#include <TopTools_ListIteratorOfListOfShape.hxx>
#include <TopTools_MapOfShape.hxx>
+#include <TopoDS.hxx>
#include <gp_Pnt2d.hxx>
-#include <ShapeAnalysis.hxx>
+
+#include <Standard_Failure.hxx>
+#include <Standard_ErrorHandler.hxx>
#include <utilities.h>
// also we have to fill myNLinkNodeMap
myCreateQuadratic = true;
mySeamShapeIds.clear();
+ myDegenShapeIds.clear();
TopAbs_ShapeEnum subType( aSh.ShapeType()==TopAbs_FACE ? TopAbs_EDGE : TopAbs_FACE );
SMDSAbs_ElementType elemType( subType==TopAbs_FACE ? SMDSAbs_Face : SMDSAbs_Edge );
myShape = aSh;
mySeamShapeIds.clear();
+ myDegenShapeIds.clear();
if ( myShape.IsNull() ) {
myShapeID = -1;
BRepAdaptor_Surface surface( face );
if ( surface.IsUPeriodic() || surface.IsVPeriodic() )
{
- // look for a seam edge
- for ( TopExp_Explorer exp( face, TopAbs_EDGE ); exp.More(); exp.Next()) {
+ for (TopExp_Explorer exp( face, TopAbs_EDGE ); exp.More(); exp.Next())
+ {
+ // look for a seam edge
const TopoDS_Edge& edge = TopoDS::Edge( exp.Current() );
if ( BRep_Tool::IsClosed( edge, face )) {
// initialize myPar1, myPar2 and myParIndex
myPar2 = surface.LastVParameter();
}
}
- // store shapes indices
- mySeamShapeIds.insert( meshDS->ShapeToIndex( exp.Current() ));
- for ( TopExp_Explorer v( exp.Current(), TopAbs_VERTEX ); v.More(); v.Next() )
- mySeamShapeIds.insert( meshDS->ShapeToIndex( v.Current() ));
+ // store seam shape indices, negative if shape encounters twice
+ int edgeID = meshDS->ShapeToIndex( edge );
+ mySeamShapeIds.insert( IsSeamShape( edgeID ) ? -edgeID : edgeID );
+ for ( TopExp_Explorer v( edge, TopAbs_VERTEX ); v.More(); v.Next() ) {
+ int vertexID = meshDS->ShapeToIndex( v.Current() );
+ mySeamShapeIds.insert( IsSeamShape( vertexID ) ? -vertexID : vertexID );
+ }
+ }
+
+ // look for a degenerated edge
+ if ( BRep_Tool::Degenerated( edge )) {
+ myDegenShapeIds.insert( meshDS->ShapeToIndex( edge ));
+ for ( TopExp_Explorer v( edge, TopAbs_VERTEX ); v.More(); v.Next() )
+ myDegenShapeIds.insert( meshDS->ShapeToIndex( v.Current() ));
}
}
}
int edgeID = Pos->GetShapeId();
TopoDS_Edge E = TopoDS::Edge(meshDS->IndexToShape(edgeID));
double f, l;
- TopLoc_Location loc;
Handle(Geom2d_Curve) C2d = BRep_Tool::CurveOnSurface(E, F, f, l);
uv = C2d->Value( epos->GetUParameter() );
// for a node on a seam edge select one of UVs on 2 pcurves
- if ( n2 && mySeamShapeIds.find( edgeID ) != mySeamShapeIds.end() )
+ if ( n2 && IsSeamShape( edgeID ) )
uv = GetUVOnSeam( uv, GetNodeUV( F, n2, 0 ));
}
else if(Pos->GetTypeOfPosition()==SMDS_TOP_VERTEX)
{
- int vertexID = n->GetPosition()->GetShapeId();
- const TopoDS_Vertex& V = TopoDS::Vertex(GetMeshDS()->IndexToShape(vertexID));
- uv = BRep_Tool::Parameters( V, F );
- if ( n2 && mySeamShapeIds.find( vertexID ) != mySeamShapeIds.end() )
- uv = GetUVOnSeam( uv, GetNodeUV( F, n2, 0 ));
+ if ( int vertexID = n->GetPosition()->GetShapeId() ) {
+ bool ok = true;
+ const TopoDS_Vertex& V = TopoDS::Vertex(GetMeshDS()->IndexToShape(vertexID));
+ try {
+ uv = BRep_Tool::Parameters( V, F );
+ }
+ catch (Standard_Failure& exc) {
+ ok = false;
+ }
+ if ( !ok ) {
+ for ( TopExp_Explorer vert(F,TopAbs_VERTEX); !ok && vert.More(); vert.Next() )
+ ok = ( V == vert.Current() );
+ if ( !ok ) {
+#ifdef _DEBUG_
+ MESSAGE ( "SMESH_MesherHelper::GetNodeUV(); Vertex " << vertexID
+ << " not in face " << GetMeshDS()->ShapeToIndex( F ) );
+#endif
+ // get UV of a vertex closest to the node
+ double dist = 1e100;
+ gp_Pnt pn ( n->X(),n->Y(),n->Z() );
+ for ( TopExp_Explorer vert(F,TopAbs_VERTEX); !ok && vert.More(); vert.Next() ) {
+ TopoDS_Vertex curV = TopoDS::Vertex( vert.Current() );
+ gp_Pnt p = BRep_Tool::Pnt( curV );
+ double curDist = p.SquareDistance( pn );
+ if ( curDist < dist ) {
+ dist = curDist;
+ uv = BRep_Tool::Parameters( curV, F );
+ if ( dist < DBL_MIN ) break;
+ }
+ }
+ }
+ else {
+ TopTools_ListIteratorOfListOfShape it( myMesh->GetAncestors( V ));
+ for ( ; it.More(); it.Next() ) {
+ if ( it.Value().ShapeType() == TopAbs_EDGE ) {
+ const TopoDS_Edge & edge = TopoDS::Edge( it.Value() );
+ double f,l;
+ Handle(Geom2d_Curve) C2d = BRep_Tool::CurveOnSurface(edge, F, f, l);
+ if ( !C2d.IsNull() ) {
+ double u = ( V == TopExp::FirstVertex( edge ) ) ? f : l;
+ uv = C2d->Value( u );
+ break;
+ }
+ }
+ }
+ }
+ }
+ if ( n2 && IsSeamShape( vertexID ) )
+ uv = GetUVOnSeam( uv, GetNodeUV( F, n2, 0 ));
+ }
}
return uv.XY();
}
}
//=======================================================================
- /*!
- * \brief Load nodes bound to face into a map of node columns
- * \param theParam2ColumnMap - map of node columns to fill
- * \param theFace - the face on which nodes are searched for
- * \param theBaseEdge - the edge nodes of which are columns' bases
- * \param theMesh - the mesh containing nodes
- * \retval bool - false if something is wrong
- *
- * The key of the map is a normalized parameter of each
- * base node on theBaseEdge.
- * This method works in supposition that nodes on the face
- * forms a rectangular grid and elements can be quardrangles or triangles
- */
+/*!
+ * \brief Load nodes bound to face into a map of node columns
+ * \param theParam2ColumnMap - map of node columns to fill
+ * \param theFace - the face on which nodes are searched for
+ * \param theBaseEdge - the edge nodes of which are columns' bases
+ * \param theMesh - the mesh containing nodes
+ * \retval bool - false if something is wrong
+ *
+ * The key of the map is a normalized parameter of each
+ * base node on theBaseEdge.
+ * This method works in supposition that nodes on the face
+ * forms a rectangular grid and elements can be quardrangles or triangles
+ */
//=======================================================================
bool SMESH_MesherHelper::LoadNodeColumns(TParam2ColumnMap & theParam2ColumnMap,
// load nodes from theBaseEdge
- set<const SMDS_MeshNode*> loadedNodes;
+ std::set<const SMDS_MeshNode*> loadedNodes;
const SMDS_MeshNode* nullNode = 0;
- vector<const SMDS_MeshNode*> & nVecf = theParam2ColumnMap[ 0.];
+ std::vector<const SMDS_MeshNode*> & nVecf = theParam2ColumnMap[ 0.];
nVecf.resize( vsize, nullNode );
loadedNodes.insert( nVecf[ 0 ] = smVfb->GetNodes()->next() );
- vector<const SMDS_MeshNode*> & nVecl = theParam2ColumnMap[ 1.];
+ std::vector<const SMDS_MeshNode*> & nVecl = theParam2ColumnMap[ 1.];
nVecl.resize( vsize, nullNode );
loadedNodes.insert( nVecl[ 0 ] = smVlb->GetNodes()->next() );
return false;
}
double u = ( pos->GetUParameter() - f ) / range;
- vector<const SMDS_MeshNode*> & nVec = theParam2ColumnMap[ u ];
+ std::vector<const SMDS_MeshNode*> & nVec = theParam2ColumnMap[ u ];
nVec.resize( vsize, nullNode );
loadedNodes.insert( nVec[ 0 ] = node );
}
// load nodes from e1
- map< double, const SMDS_MeshNode*> sortedNodes; // sort by param on edge
+ std::map< double, const SMDS_MeshNode*> sortedNodes; // sort by param on edge
nIt = sm1->GetNodes();
while ( nIt->more() ) {
node = nIt->next();
if ( !pos ) {
return false;
}
- sortedNodes.insert( make_pair( pos->GetUParameter(), node ));
+ sortedNodes.insert( std::make_pair( pos->GetUParameter(), node ));
}
loadedNodes.insert( nVecf[ vsize - 1 ] = smVft->GetNodes()->next() );
- map< double, const SMDS_MeshNode*>::iterator u_n = sortedNodes.begin();
+ std::map< double, const SMDS_MeshNode*>::iterator u_n = sortedNodes.begin();
int row = rev1 ? vsize - 1 : 0;
int dRow = rev1 ? -1 : +1;
for ( ; u_n != sortedNodes.end(); u_n++ ) {
return true;
}
+
+//=======================================================================
+/**
+ * Check mesh without geometry for: if all elements on this shape are quadratic,
+ * quadratic elements will be created.
+ * Used then generated 3D mesh without geometry.
+ */
+//=======================================================================
+
+SMESH_MesherHelper:: MType SMESH_MesherHelper::IsQuadraticMesh()
+{
+ int NbAllEdgsAndFaces=0;
+ int NbQuadFacesAndEdgs=0;
+ int NbFacesAndEdges=0;
+ //All faces and edges
+ NbAllEdgsAndFaces = myMesh->NbEdges() + myMesh->NbFaces();
+
+ //Quadratic faces and edges
+ NbQuadFacesAndEdgs = myMesh->NbEdges(ORDER_QUADRATIC) + myMesh->NbFaces(ORDER_QUADRATIC);
+
+ //Linear faces and edges
+ NbFacesAndEdges = myMesh->NbEdges(ORDER_LINEAR) + myMesh->NbFaces(ORDER_LINEAR);
+
+ if (NbAllEdgsAndFaces == NbQuadFacesAndEdgs) {
+ //Quadratic mesh
+ return SMESH_MesherHelper::QUADRATIC;
+ }
+ else if (NbAllEdgsAndFaces == NbFacesAndEdges) {
+ //Linear mesh
+ return SMESH_MesherHelper::LINEAR;
+ }
+ else
+ //Mesh with both type of elements
+ return SMESH_MesherHelper::COMP;
+}
+
+//=======================================================================
+/*!
+ * \brief Return an alternative parameter for a node on seam
+ */
+//=======================================================================
+
+double SMESH_MesherHelper::GetOtherParam(const double param) const
+{
+ return fabs(param-myPar1) < fabs(param-myPar2) ? myPar2 : myPar1;
+}
