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0020849: [CEA] Projection 2D fails

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* project by transformation in case if TopoDS_TFace's are different
This commit is contained in:
eap 2010-04-23 13:43:11 +00:00
parent 80430ffc71
commit 603171f2af
1 changed files with 118 additions and 10 deletions
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128
src/StdMeshers/StdMeshers_Projection_2D.cxx
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@ -51,6 +51,8 @@
#include <TopExp_Explorer.hxx>
#include <TopTools_ListIteratorOfListOfShape.hxx>
#include <TopoDS.hxx>
#include <gp_Ax2.hxx>
#include <gp_Ax3.hxx>
using namespace std;
@ -356,7 +358,8 @@ namespace {
//================================================================================
/*!
* \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
@ -371,8 +374,96 @@ namespace {
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
@ -382,8 +473,6 @@ namespace {
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(),
@ -399,6 +488,30 @@ namespace {
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)
@ -407,11 +520,6 @@ namespace {
// 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 );