-// 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_Projection_2D.cxx
// Module : SMESH
#include <TopExp_Explorer.hxx>
#include <TopTools_ListIteratorOfListOfShape.hxx>
#include <TopoDS.hxx>
+#include <gp_Ax2.hxx>
+#include <gp_Ax3.hxx>
using namespace std;
//================================================================================
/*!
- * \brief Preform projection in case if tgtFace.IsPartner( srcFace )
+ * \brief Preform projection in case if tgtFace.IsPartner( srcFace ) and in case
+ * if projection by transformation is possible
* \param tgtFace - target face
* \param srcFace - source face
* \param tgtMesh - target mesh
SMESH_Mesh * srcMesh,
const TAssocTool::TShapeShapeMap& shape2ShapeMap)
{
- if ( !tgtFace.IsPartner( srcFace ))
- return false;
+ const double tol = 1e-6;
+
+ gp_Trsf trsf; // transformation to get location of target nodes from source ones
+ if ( tgtFace.IsPartner( srcFace ))
+ {
+ gp_Trsf srcTrsf = srcFace.Location();
+ gp_Trsf tgtTrsf = tgtFace.Location();
+ trsf = srcTrsf.Inverted() * tgtTrsf;
+ }
+ else
+ {
+ // Try to find the transformation
+
+ // make any local coord systems of src and tgt faces
+ vector<gp_Pnt> srcPP, tgtPP; // 3 points on face boundaries to make axes of CS
+ SMESH_subMesh * srcSM = srcMesh->GetSubMesh( srcFace );
+ SMESH_subMeshIteratorPtr smIt = srcSM->getDependsOnIterator(/*includeSelf=*/false,false);
+ srcSM = smIt->next(); // sm of a vertex
+ while ( smIt->more() && srcPP.size() < 3 )
+ {
+ srcSM = smIt->next();
+ SMESHDS_SubMesh* srcSmds = srcSM->GetSubMeshDS();
+ if ( !srcSmds ) continue;
+ SMDS_NodeIteratorPtr nIt = srcSmds->GetNodes();
+ while ( nIt->more() )
+ {
+ SMESH_MeshEditor::TNodeXYZ p ( nIt->next());
+ bool pOK = false;
+ switch ( srcPP.size() )
+ {
+ case 0: pOK = true; break;
+
+ case 1: pOK = ( srcPP[0].SquareDistance( p ) > tol ); break;
+
+ case 2:
+ {
+ gp_Vec p0p1( srcPP[0], srcPP[1] ), p0p( srcPP[0], p );
+ pOK = !p0p1.IsParallel( p0p, tol );
+ break;
+ }
+ }
+ if ( !pOK )
+ continue;
+
+ // find corresponding point on target shape
+ pOK = false;
+ gp_Pnt tgtP;
+ const TopoDS_Shape& tgtShape = shape2ShapeMap( srcSM->GetSubShape() );
+ if ( tgtShape.ShapeType() == TopAbs_VERTEX )
+ {
+ tgtP = BRep_Tool::Pnt( TopoDS::Vertex( tgtShape ));
+ pOK = true;
+ //cout << "V - nS " << p._node->GetID() << " - nT " << SMESH_Algo::VertexNode(TopoDS::Vertex( tgtShape),tgtMesh->GetMeshDS())->GetID() << endl;
+ }
+ else if ( tgtPP.size() > 0 )
+ {
+ if ( SMESHDS_SubMesh* tgtSmds = tgtMesh->GetMeshDS()->MeshElements( tgtShape ))
+ {
+ double srcDist = srcPP[0].Distance( p );
+ double eTol = BRep_Tool::Tolerance( TopoDS::Edge( tgtShape ));
+ SMDS_NodeIteratorPtr nItT = tgtSmds->GetNodes();
+ while ( nItT->more() && !pOK )
+ {
+ const SMDS_MeshNode* n = nItT->next();
+ tgtP = SMESH_MeshEditor::TNodeXYZ( n );
+ pOK = ( fabs( srcDist - tgtPP[0].Distance( tgtP )) < 2*eTol );
+ //cout << "E - nS " << p._node->GetID() << " - nT " << n->GetID()<< " OK - " << pOK<< " " << fabs( srcDist - tgtPP[0].Distance( tgtP ))<< " tol " << eTol<< endl;
+ }
+ }
+ }
+ if ( !pOK )
+ continue;
+
+ srcPP.push_back( p );
+ tgtPP.push_back( tgtP );
+ }
+ }
+ if ( srcPP.size() != 3 )
+ return false;
+
+ // make transformation
+ gp_Trsf fromTgtCS, toSrcCS; // from/to global CS
+ gp_Ax2 srcCS( srcPP[0], gp_Vec( srcPP[0], srcPP[1] ), gp_Vec( srcPP[0], srcPP[2]));
+ gp_Ax2 tgtCS( tgtPP[0], gp_Vec( tgtPP[0], tgtPP[1] ), gp_Vec( tgtPP[0], tgtPP[2]));
+ toSrcCS .SetTransformation( gp_Ax3( srcCS ));
+ fromTgtCS.SetTransformation( gp_Ax3( tgtCS ));
+ fromTgtCS.Invert();
+
+ trsf = fromTgtCS * toSrcCS;
+ }
// Fill map of src to tgt nodes with nodes on edges
for ( TopExp_Explorer srcEdge( srcFace, TopAbs_EDGE); srcEdge.More(); srcEdge.Next() )
{
const TopoDS_Shape& tgtEdge = shape2ShapeMap( srcEdge.Current() );
- if ( !tgtEdge.IsPartner( srcEdge.Current() ))
- return false;
map< double, const SMDS_MeshNode* > srcNodes, tgtNodes;
if ( !SMESH_Algo::GetSortedNodesOnEdge( srcMesh->GetMeshDS(),
srcNodes.size() != tgtNodes.size())
return false;
+ if ( !tgtEdge.IsPartner( srcEdge.Current() ))
+ {
+ // check that transormation is OK by three nodes
+ gp_Pnt p0S = SMESH_MeshEditor::TNodeXYZ( (srcNodes.begin()) ->second);
+ gp_Pnt p1S = SMESH_MeshEditor::TNodeXYZ( (srcNodes.rbegin()) ->second);
+ gp_Pnt p2S = SMESH_MeshEditor::TNodeXYZ( (++srcNodes.begin())->second);
+
+ gp_Pnt p0T = SMESH_MeshEditor::TNodeXYZ( (tgtNodes.begin()) ->second);
+ gp_Pnt p1T = SMESH_MeshEditor::TNodeXYZ( (tgtNodes.rbegin()) ->second);
+ gp_Pnt p2T = SMESH_MeshEditor::TNodeXYZ( (++tgtNodes.begin())->second);
+
+ // transform source points, they must coinside with target ones
+ if ( p0T.SquareDistance( p0S.Transformed( trsf )) > tol ||
+ p1T.SquareDistance( p1S.Transformed( trsf )) > tol ||
+ p2T.SquareDistance( p2S.Transformed( trsf )) > tol )
+ {
+ //cout << "KO trsf, 3 dist: "
+ //<< p0T.SquareDistance( p0S.Transformed( trsf ))<< ", "
+ //<< p1T.SquareDistance( p1S.Transformed( trsf ))<< ", "
+ //<< p2T.SquareDistance( p2S.Transformed( trsf ))<< ", "<<endl;
+ return false;
+ }
+ }
+
map< double, const SMDS_MeshNode* >::iterator u_tn = tgtNodes.begin();
map< double, const SMDS_MeshNode* >::iterator u_sn = srcNodes.begin();
for ( ; u_tn != tgtNodes.end(); ++u_tn, ++u_sn)
// Make new faces
- // transformation to get location of target nodes from source ones
- gp_Trsf srcTrsf = srcFace.Location();
- gp_Trsf tgtTrsf = tgtFace.Location();
- gp_Trsf trsf = srcTrsf.Inverted() * tgtTrsf;
-
// prepare the helper adding quadratic elements if necessary
SMESH_MesherHelper helper( *tgtMesh );
helper.IsQuadraticSubMesh( tgtFace );
