-// Copyright (C) 2007-2016 CEA/DEN, EDF R&D, OPEN CASCADE
+// Copyright (C) 2007-2020 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
+// SMESH SMESH : implementation of SMESH idl descriptions
// File : StdMeshers_Projection_2D.cxx
// Module : SMESH
// Created : Fri Oct 20 11:37:07 2006
#include "SMESH_Gen.hxx"
#include "SMESH_Mesh.hxx"
#include "SMESH_MeshAlgos.hxx"
+#include "SMESH_MeshEditor.hxx"
#include "SMESH_MesherHelper.hxx"
#include "SMESH_Pattern.hxx"
#include "SMESH_subMesh.hxx"
//purpose :
//=======================================================================
-StdMeshers_Projection_2D::StdMeshers_Projection_2D(int hypId, int studyId, SMESH_Gen* gen)
- :SMESH_2D_Algo(hypId, studyId, gen)
+StdMeshers_Projection_2D::StdMeshers_Projection_2D(int hypId, SMESH_Gen* gen)
+ :SMESH_2D_Algo(hypId, gen)
{
_name = "Projection_2D";
_compatibleHypothesis.push_back("ProjectionSource2D");
//================================================================================
bool getBoundaryNodes ( SMESH_subMesh* sm,
- const TopoDS_Face& face,
+ const TopoDS_Face& /*face*/,
map< double, const SMDS_MeshNode* > & u2nodes,
set< const SMDS_MeshNode* > & seamNodes)
{
if ( node->GetPosition()->GetTypeOfPosition() != SMDS_TOP_EDGE )
RETURN_BAD_RESULT("Bad node position type: node " << node->GetID() <<
" pos type " << node->GetPosition()->GetTypeOfPosition());
- const SMDS_EdgePosition* pos =
- static_cast<const SMDS_EdgePosition*>(node->GetPosition());
+ SMDS_EdgePositionPtr pos = node->GetPosition();
u2nodes.insert( make_pair( pos->GetUParameter(), node ));
seamNodes.insert( node );
}
*/
//================================================================================
- bool projectQuads(const TopoDS_Face& tgtFace,
- const TopoDS_Face& srcFace,
- const TSideVector& tgtWires,
- const TSideVector& srcWires,
- const TAssocTool::TShapeShapeMap& shape2ShapeMap,
- TAssocTool::TNodeNodeMap& src2tgtNodes,
- const bool is1DComputed)
+ bool projectQuads(const TopoDS_Face& /*tgtFace*/,
+ const TopoDS_Face& /*srcFace*/,
+ const TSideVector& /*tgtWires*/,
+ const TSideVector& /*srcWires*/,
+ const TAssocTool::TShapeShapeMap& /*shape2ShapeMap*/,
+ TAssocTool::TNodeNodeMap& /*src2tgtNodes*/,
+ const bool /*is1DComputed*/)
{
// SMESH_Mesh * tgtMesh = tgtWires[0]->GetMesh();
// SMESH_Mesh * srcMesh = srcWires[0]->GetMesh();
{
SMESH_subMesh* faceSM = helper.GetMesh()->GetSubMesh( helper.GetSubShape() );
- if ( helper.IsDistorted2D( faceSM, /*checkUV=*/true ))
+ //if ( helper.IsDistorted2D( faceSM, /*checkUV=*/true ))
{
SMESH_MeshEditor editor( helper.GetMesh() );
SMESHDS_SubMesh* smDS = faceSM->GetSubMeshDS();
return true;
}
- typedef list< pair< const SMDS_MeshNode*, const BRepMesh_Triangle* > > TNodeTriaList;
-
- //================================================================================
- /*!
- * \brief Add in-FACE nodes surrounding a given node to a queue
- */
- //================================================================================
-
- void addCloseNodes( const SMDS_MeshNode* srcNode,
- const BRepMesh_Triangle* bmTria,
- const int srcFaceID,
- TNodeTriaList & noTriQueue )
- {
- // find in-FACE nodes
- SMDS_ElemIteratorPtr elems = srcNode->GetInverseElementIterator(SMDSAbs_Face);
- while ( elems->more() )
- {
- const SMDS_MeshElement* elem = elems->next();
- if ( elem->getshapeId() == srcFaceID )
- {
- for ( int i = 0, nb = elem->NbNodes(); i < nb; ++i )
- {
- const SMDS_MeshNode* n = elem->GetNode( i );
- if ( !n->isMarked() )
- noTriQueue.push_back( make_pair( n, bmTria ));
- }
- }
- }
- }
-
- //================================================================================
- /*!
- * \brief Find a delauney triangle containing a given 2D point and return
- * barycentric coordinates within the found triangle
- */
- //================================================================================
-
- const BRepMesh_Triangle* findTriangle( const gp_XY& uv,
- const BRepMesh_Triangle* bmTria,
- Handle(BRepMesh_DataStructureOfDelaun)& triaDS,
- double bc[3] )
- {
- int nodeIDs[3];
- gp_XY nodeUVs[3];
- int linkIDs[3];
- Standard_Boolean ori[3];
-
- while ( bmTria )
- {
- // check bmTria
-
- triaDS->ElementNodes( *bmTria, nodeIDs );
- nodeUVs[0] = triaDS->GetNode( nodeIDs[0] ).Coord();
- nodeUVs[1] = triaDS->GetNode( nodeIDs[1] ).Coord();
- nodeUVs[2] = triaDS->GetNode( nodeIDs[2] ).Coord();
-
- SMESH_MeshAlgos::GetBarycentricCoords( uv,
- nodeUVs[0], nodeUVs[1], nodeUVs[2],
- bc[0], bc[1] );
- if ( bc[0] >= 0 && bc[1] >= 0 && bc[0] + bc[1] <= 1 )
- {
- bc[2] = 1 - bc[0] - bc[1];
- return bmTria;
- }
-
- // look for a neighbor triangle, which is adjacent to a link intersected
- // by a segment( triangle center -> uv )
-
- gp_XY gc = ( nodeUVs[0] + nodeUVs[1] + nodeUVs[2] ) / 3.;
- gp_XY seg = uv - gc;
-
- bmTria->Edges( linkIDs, ori );
- int triaID = triaDS->IndexOf( *bmTria );
- bmTria = 0;
-
- for ( int i = 0; i < 3; ++i )
- {
- const BRepMesh_PairOfIndex & triIDs = triaDS->ElementsConnectedTo( linkIDs[i] );
- if ( triIDs.Extent() < 2 )
- continue; // no neighbor triangle
-
- // check if a link intersects gc2uv
- const BRepMesh_Edge & link = triaDS->GetLink( linkIDs[i] );
- const BRepMesh_Vertex & n1 = triaDS->GetNode( link.FirstNode() );
- const BRepMesh_Vertex & n2 = triaDS->GetNode( link.LastNode() );
- gp_XY uv1 = n1.Coord();
- gp_XY lin = n2.Coord() - uv1; // link direction
-
- double crossSegLin = seg ^ lin;
- if ( Abs( crossSegLin ) < std::numeric_limits<double>::min() )
- continue; // parallel
-
- double uSeg = ( uv1 - gc ) ^ lin / crossSegLin;
- if ( 0. <= uSeg && uSeg <= 1. )
- {
- bmTria = & triaDS->GetElement( triIDs.Index( 1 + ( triIDs.Index(1) == triaID )));
- break;
- }
- }
- }
- return bmTria;
- }
-
- //================================================================================
- /*!
- * \brief Morph mesh on the target face to lie within FACE boundary w/o distortion
- *
- * algo:
- * - make a CDT on the src FACE
- * - find a triangle containing a src node and get its barycentric coordinates
- * - move the node to a point with the same barycentric coordinates in a corresponding
- * tgt triangle
- */
- //================================================================================
-
- bool morph( SMESH_MesherHelper& tgtHelper,
- const TopoDS_Face& tgtFace,
- const TopoDS_Face& srcFace,
- const TSideVector& tgtWires,
- const TSideVector& srcWires,
- const TAssocTool::TNodeNodeMap& src2tgtNodes )
- {
- if ( srcWires.size() != tgtWires.size() ) return false;
- if ( srcWires.size() == 1 ) return false; // tmp
-
- // count boundary points
- int iP = 1, nbP = 0;
- for ( size_t iW = 0; iW < srcWires.size(); ++iW )
- nbP += srcWires[iW]->NbPoints() - 1; // 1st and last points coincide
-
- // fill boundary points
- BRepMesh::Array1OfVertexOfDelaun srcVert( 1, 1 + nbP ), tgtVert( 1, 1 + nbP );
- vector< const SMDS_MeshNode* > bndSrcNodes( nbP + 1 ); bndSrcNodes[0] = 0;
- BRepMesh_Vertex v( 0, 0, BRepMesh_Frontier );
- for ( size_t iW = 0; iW < srcWires.size(); ++iW )
- {
- const UVPtStructVec& srcPnt = srcWires[iW]->GetUVPtStruct();
- const UVPtStructVec& tgtPnt = tgtWires[iW]->GetUVPtStruct();
- if ( srcPnt.size() != tgtPnt.size() ) return false;
-
- for ( int i = 0, nb = srcPnt.size() - 1; i < nb; ++i, ++iP )
- {
- bndSrcNodes[ iP ] = srcPnt[i].node;
- srcPnt[i].node->setIsMarked( true );
-
- v.ChangeCoord() = srcPnt[i].UV();
- srcVert( iP ) = v;
- v.ChangeCoord() = tgtPnt[i].UV();
- tgtVert( iP ) = v;
- }
- }
- // triangulate the srcFace in 2D
- BRepMesh_Delaun delauney( srcVert );
- Handle(BRepMesh_DataStructureOfDelaun) triaDS = delauney.Result();
-
- Handle(ShapeAnalysis_Surface) tgtSurface = tgtHelper.GetSurface( tgtFace );
- SMESHDS_Mesh* srcMesh = srcWires[0]->GetMesh()->GetMeshDS();
- SMESHDS_Mesh* tgtMesh = tgtHelper.GetMeshDS();
- const SMDS_MeshNode *srcNode, *tgtNode;
- const BRepMesh_Triangle *bmTria;
-
- // un-mark internal src nodes; later we will mark moved nodes
- SMDS_NodeIteratorPtr nIt = srcMesh->MeshElements( srcFace )->GetNodes();
- if ( !nIt || !nIt->more() ) return true;
- while ( nIt->more() )
- ( srcNode = nIt->next() )->setIsMarked( false );
-
- // initialize a queue of nodes with starting triangles
- const int srcFaceID = srcNode->getshapeId();
- TNodeTriaList noTriQueue;
- size_t iBndSrcN = 1;
- for ( ; iBndSrcN < bndSrcNodes.size() && noTriQueue.empty(); ++iBndSrcN )
- {
- // get a triangle
- const BRepMesh::ListOfInteger & linkIds = triaDS->LinksConnectedTo( iBndSrcN );
- const BRepMesh_PairOfIndex & triaIds = triaDS->ElementsConnectedTo( linkIds.First() );
- const BRepMesh_Triangle& tria = triaDS->GetElement( triaIds.Index(1) );
-
- addCloseNodes( bndSrcNodes[ iBndSrcN ], &tria, srcFaceID, noTriQueue );
- }
-
- // Move tgt nodes
-
- double bc[3]; // barycentric coordinates
- int nodeIDs[3];
- bool checkUV = true;
- const SMDS_FacePosition* pos;
-
- while ( !noTriQueue.empty() )
- {
- srcNode = noTriQueue.front().first;
- bmTria = noTriQueue.front().second;
- noTriQueue.pop_front();
- if ( srcNode->isMarked() )
- continue;
- srcNode->setIsMarked( true );
-
- // find a delauney triangle containing the src node
- gp_XY uv = tgtHelper.GetNodeUV( srcFace, srcNode, NULL, &checkUV );
- bmTria = findTriangle( uv, bmTria, triaDS, bc );
- if ( !bmTria )
- continue;
-
- // compute new coordinates for a corresponding tgt node
- gp_XY uvNew( 0., 0. ), nodeUV;
- triaDS->ElementNodes( *bmTria, nodeIDs );
- for ( int i = 0; i < 3; ++i )
- uvNew += bc[i] * tgtVert( nodeIDs[i]).Coord();
- gp_Pnt xyz = tgtSurface->Value( uvNew );
-
- // find and move tgt node
- TAssocTool::TNodeNodeMap::const_iterator n2n = src2tgtNodes.find( srcNode );
- if ( n2n == src2tgtNodes.end() ) continue;
- tgtNode = n2n->second;
- tgtMesh->MoveNode( tgtNode, xyz.X(), xyz.Y(), xyz.Z() );
-
- if (( pos = dynamic_cast< const SMDS_FacePosition* >( tgtNode->GetPosition() )))
- const_cast<SMDS_FacePosition*>( pos )->SetParameters( uvNew.X(), uvNew.Y() );
-
- addCloseNodes( srcNode, bmTria, srcFaceID, noTriQueue );
-
- // assure that all src nodes are visited
- for ( ; iBndSrcN < bndSrcNodes.size() && noTriQueue.empty(); ++iBndSrcN )
- {
- const BRepMesh::ListOfInteger & linkIds = triaDS->LinksConnectedTo( iBndSrcN );
- const BRepMesh_PairOfIndex & triaIds = triaDS->ElementsConnectedTo( linkIds.First() );
- const BRepMesh_Triangle& tria = triaDS->GetElement( triaIds.Index(1) );
- addCloseNodes( bndSrcNodes[ iBndSrcN ], &tria, srcFaceID, noTriQueue );
- }
- }
-
- return true;
- }
-
//=======================================================================
/*
* Set initial association of VERTEXes for the case of projection
TopoDS_Edge srcE1 = srcEdges.front(), tgtE1 = tgtEdges.front();
TopoDS_Shape srcE1bis = shape2ShapeMap( tgtE1 );
reverse = ( ! srcE1.IsSame( srcE1bis ));
- if ( reverse &&
- //_sourceHypo->HasVertexAssociation() &&
+ if ( ( reverse || srcE1.Orientation() != srcE1bis.Orientation() ) &&
nbEdgesInWires.front() > 2 &&
helper.IsRealSeam( tgtEdges.front() ))
{
+ if ( srcE1.Orientation() != srcE1bis.Orientation() )
+ reverse = true;
// projection to a face with seam EDGE; pb is that GetOrderedEdges()
// always puts a seam EDGE first (if possible) and as a result
// we can't use only theReverse flag to correctly associate source
// mapper changed, no more "mapper puts on a seam edge nodes from 2 edges"
if ( isSeam && ! getBoundaryNodes ( sm, tgtFace, u2nodesOnSeam, seamNodes ))
- ;//RETURN_BAD_RESULT("getBoundaryNodes() failed");
+ {
+ //RETURN_BAD_RESULT("getBoundaryNodes() failed");
+ }
SMDS_NodeIteratorPtr nIt = smDS->GetNodes();
while ( nIt->more() )
break;
}
case SMDS_TOP_EDGE: {
- const SMDS_EdgePosition* pos =
- static_cast<const SMDS_EdgePosition*>(node->GetPosition());
+ SMDS_EdgePositionPtr pos = node->GetPosition();
pos2nodes.insert( make_pair( pos->GetUParameter(), node ));
break;
}
if ( !projDone || is1DComputed )
// ----------------------------------------------------------------
// The mapper can create distorted faces by placing nodes out of the FACE
- // boundary, also bad face can be created if EDGEs already discretized
+ // boundary, also bad faces can be created if EDGEs already discretized
// --> fix bad faces by smoothing
// ----------------------------------------------------------------
if ( helper.IsDistorted2D( tgtSubMesh, /*checkUV=*/false, &helper ))
{
- morph( helper, tgtFace, srcFace, tgtWires, srcWires, _src2tgtNodes );
+ TAssocTool::Morph morph( srcWires );
+ morph.Perform( helper, tgtWires, helper.GetSurface( tgtFace ),
+ _src2tgtNodes, /*moveAll=*/true );
if ( !fixDistortedFaces( helper, tgtWires ))
return error("Invalid mesh generated");
