-// Copyright (C) 2007-2008 CEA/DEN, EDF R&D, OPEN CASCADE
+// Copyright (C) 2007-2010 CEA/DEN, EDF R&D, OPEN CASCADE
//
// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
//
// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
//
+
// SMESH SMESH : implementaion of SMESH idl descriptions
// File : StdMeshers_FaceSide.hxx
// Created : Wed Jan 31 18:41:25 2007
#include "SMDS_MeshNode.hxx"
#include "SMESHDS_Mesh.hxx"
#include "SMESHDS_SubMesh.hxx"
-//#include "SMESH_Algo.hxx"
+#include "SMESH_Algo.hxx"
#include "SMESH_Mesh.hxx"
#include "SMESH_MesherHelper.hxx"
#include "SMESH_ComputeError.hxx"
#include <TopoDS_Vertex.hxx>
#include <TopoDS_Wire.hxx>
+#include <GCPnts_AbscissaPoint.hxx>
+#include <Geom2dAdaptor_Curve.hxx>
+
#include <map>
#include "utilities.h"
int nbEdges = theEdges.size();
myEdge.resize( nbEdges );
myC2d.resize( nbEdges );
+ myC3dAdaptor.resize( nbEdges );
myFirst.resize( nbEdges );
myLast.resize( nbEdges );
myNormPar.resize( nbEdges );
+ myEdgeLength.resize( nbEdges );
+ myIsUniform.resize( nbEdges, true );
myLength = 0;
myNbPonits = myNbSegments = 0;
myMesh = theMesh;
if ( nbEdges == 0 ) return;
SMESHDS_Mesh* meshDS = theMesh->GetMeshDS();
- vector<double> len( nbEdges );
int nbDegen = 0;
list<TopoDS_Edge>::iterator edge = theEdges.begin();
for ( int index = 0; edge != theEdges.end(); ++index, ++edge )
{
int i = theIsForward ? index : nbEdges - index - 1;
- len[i] = SMESH_Algo::EdgeLength( *edge );
- if ( len[i] < DBL_MIN ) nbDegen++;
- myLength += len[i];
+ myEdgeLength[i] = SMESH_Algo::EdgeLength( *edge );
+ if ( myEdgeLength[i] < DBL_MIN ) nbDegen++;
+ myLength += myEdgeLength[i];
myEdge[i] = *edge;
if ( !theIsForward ) myEdge[i].Reverse();
myNbPonits += nbN;
myNbSegments += sm->NbElements();
}
+ // TopExp::FirstVertex() and TopExp::LastVertex() return NULL from INTERNAL edge
vExp.Initialize( *edge );
+ if ( vExp.Value().Orientation() == TopAbs_REVERSED ) vExp.Next();
if ( SMESH_Algo::VertexNode( TopoDS::Vertex( vExp.Value()), meshDS ))
myNbPonits += 1; // for the first end
else
myMissingVertexNodes = true;
+
+ // check if edge has non-uniform parametrization (issue 0020705)
+ if ( !myC2d[i].IsNull() && myEdgeLength[i] > DBL_MIN)
+ {
+ Geom2dAdaptor_Curve A2dC( myC2d[i] );
+ double p2 = myFirst[i]+(myLast[i]-myFirst[i])/2., p4 = myFirst[i]+(myLast[i]-myFirst[i])/4.;
+ double d2 = GCPnts_AbscissaPoint::Length( A2dC, myFirst[i], p2 );
+ double d4 = GCPnts_AbscissaPoint::Length( A2dC, myFirst[i], p4 );
+ //cout<<"len = "<<len<<" d2 = "<<d2<<" fabs(2*d2/len-1.0) = "<<fabs(2*d2/len-1.0)<<endl;
+ myIsUniform[i] = !( fabs(2*d2/myEdgeLength[i]-1.0) > 0.01 || fabs(2*d4/d2-1.0) > 0.01 );
+ if ( !myIsUniform[i] )
+ {
+ double fp,lp;
+ TopLoc_Location L;
+ Handle(Geom_Curve) C3d = BRep_Tool::Curve(myEdge[i],L,fp,lp);
+ myC3dAdaptor[i].Load( C3d, fp,lp );
+ }
+ }
}
- vExp.Next();
+ vExp.Initialize( theEdges.back() );
+ if ( vExp.Value().Orientation() != TopAbs_REVERSED ) vExp.Next();
if ( vExp.More() )
{
if ( SMESH_Algo::VertexNode( TopoDS::Vertex( vExp.Value()), meshDS ))
totLength += myLength * degenNormLen * nbDegen;
double prevNormPar = 0;
for ( int i = 0; i < nbEdges; ++i ) {
- if ( len[ i ] < DBL_MIN )
- len[ i ] = myLength * degenNormLen;
- myNormPar[ i ] = prevNormPar + len[i]/totLength;
+ if ( myEdgeLength[ i ] < DBL_MIN )
+ myEdgeLength[ i ] = myLength * degenNormLen;
+ myNormPar[ i ] = prevNormPar + myEdgeLength[i]/totLength;
prevNormPar = myNormPar[ i ];
}
}
if ( NbEdges() == 0 ) return myPoints;
SMESHDS_Mesh* meshDS = myMesh->GetMeshDS();
+ SMESH_MesherHelper helper(*myMesh);
+ bool paramOK;
// sort nodes of all edges putting them into a map
map< double, const SMDS_MeshNode*> u2node;
//int nbOnDegen = 0;
- for ( int i = 0; i < myEdge.size(); ++i ) {
- // put 1st vertex node
+ for ( int i = 0; i < myEdge.size(); ++i )
+ {
+ // Put 1st vertex node of a current edge
TopoDS_Vertex VV[2]; // TopExp::FirstVertex() returns NULL for INTERNAL edge
for ( TopoDS_Iterator vIt(myEdge[i]); vIt.More(); vIt.Next() )
VV[ VV[0].IsNull() ? 0 : 1 ] = TopoDS::Vertex(vIt.Value());
return myPoints;
}
- // put 2nd vertex node for a last edge
+ // Put internal nodes
+ SMESHDS_SubMesh* sm = meshDS->MeshElements( myEdge[i] );
+ if ( !sm ) continue;
+ vector< pair< double, const SMDS_MeshNode*> > u2nodeVec;
+ u2nodeVec.reserve( sm->NbNodes() );
+ SMDS_NodeIteratorPtr nItr = sm->GetNodes();
+ double paramSize = myLast[i] - myFirst[i];
+ double r = myNormPar[i] - prevNormPar;
+ if ( !myIsUniform[i] )
+ while ( nItr->more() )
+ {
+ const SMDS_MeshNode* node = nItr->next();
+ if ( myIgnoreMediumNodes && SMESH_MeshEditor::IsMedium( node, SMDSAbs_Edge ))
+ continue;
+ double u = helper.GetNodeU( myEdge[i], node, ¶mOK );
+ double aLenU = GCPnts_AbscissaPoint::Length
+ ( const_cast<GeomAdaptor_Curve&>( myC3dAdaptor[i]), myFirst[i], u );
+ if ( myEdgeLength[i] < aLenU ) // nonregression test "3D_mesh_NETGEN/G6"
+ {
+ u2nodeVec.clear();
+ break;
+ }
+ double normPar = prevNormPar + r*aLenU/myEdgeLength[i];
+ u2nodeVec.push_back( make_pair( normPar, node ));
+ }
+ nItr = sm->GetNodes();
+ if ( u2nodeVec.empty() )
+ while ( nItr->more() )
+ {
+ const SMDS_MeshNode* node = nItr->next();
+ if ( myIgnoreMediumNodes && SMESH_MeshEditor::IsMedium( node, SMDSAbs_Edge ))
+ continue;
+ double u = helper.GetNodeU( myEdge[i], node, ¶mOK );
+
+ // paramSize is signed so orientation is taken into account
+ double normPar = prevNormPar + r * ( u - myFirst[i] ) / paramSize;
+ u2nodeVec.push_back( make_pair( normPar, node ));
+ }
+ u2node.insert( u2nodeVec.begin(), u2nodeVec.end() );
+
+ // Put 2nd vertex node for a last edge
if ( i+1 == myEdge.size() ) {
node = SMESH_Algo::VertexNode( VV[1], meshDS );
if ( !node ) {
}
u2node.insert( make_pair( 1., node ));
}
-
- // put internal nodes
- SMESHDS_SubMesh* sm = meshDS->MeshElements( myEdge[i] );
- if ( !sm ) continue;
- SMDS_NodeIteratorPtr nItr = sm->GetNodes();
- double paramSize = myLast[i] - myFirst[i], r = myNormPar[i] - prevNormPar;
- while ( nItr->more() ) {
- const SMDS_MeshNode* node = nItr->next();
- if ( myIgnoreMediumNodes && SMESH_MeshEditor::IsMedium( node, SMDSAbs_Edge ))
- continue;
- const SMDS_EdgePosition* epos =
- static_cast<const SMDS_EdgePosition*>(node->GetPosition().get());
- double u = epos->GetUParameter();
- // paramSize is signed so orientation is taken into account
- double normPar = prevNormPar + r * ( u - myFirst[i] ) / paramSize;
-#ifdef _DEBUG_
- if ( normPar > 1 || normPar < 0) {
- dump("DEBUG");
- MESSAGE ( "WRONG normPar: "<<normPar<< " prevNormPar="<<prevNormPar
- << " u="<<u << " myFirst[i]="<<myFirst[i]<< " myLast[i]="<<myLast[i]
- << " paramSize="<<paramSize );
- }
-#endif
- u2node.insert( make_pair( normPar, node ));
- }
}
if ( u2node.size() != myNbPonits ) {
MESSAGE("Wrong node parameters on edges, u2node.size():"
if ( nbEdges > 1 ) {
reverse( myEdge );
reverse( myC2d );
+ reverse( myC3dAdaptor );
reverse( myFirst );
reverse( myLast );
reverse( myNormPar );
+ reverse( myEdgeLength );
+ reverse( myIsUniform );
}
myNormPar[nbEdges-1]=1.;
myPoints.clear();
return new BRepAdaptor_CompCurve( aWire );
}
+
//================================================================================
/*!
* \brief Return 2D point by normalized parameter
int i = EdgeIndex( U );
double prevU = i ? myNormPar[ i-1 ] : 0;
double r = ( U - prevU )/ ( myNormPar[ i ] - prevU );
- return myC2d[ i ]->Value( myFirst[i] * ( 1 - r ) + myLast[i] * r );
+
+ double par = myFirst[i] * ( 1 - r ) + myLast[i] * r;
+
+ // check parametrization of curve
+ if( !myIsUniform[i] )
+ {
+ double aLen3dU = r * myEdgeLength[i] * ( myFirst[i]>myLast[i] ? -1. : 1.);
+ GCPnts_AbscissaPoint AbPnt
+ ( const_cast<GeomAdaptor_Curve&>( myC3dAdaptor[i]), aLen3dU, myFirst[i] );
+ if( AbPnt.IsDone() ) {
+ par = AbPnt.Parameter();
+ }
+ }
+ return myC2d[ i ]->Value(par);
+
}
- //return gp_Pnt2d( 1e+100, 1e+100 );
return myDefaultPnt2d;
}
