-// Copyright (C) 2007-2016 CEA/DEN, EDF R&D, OPEN CASCADE
+// Copyright (C) 2007-2024 CEA, EDF, 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 "StdMeshers_Projection_2D.hxx"
+#include "StdMeshers_FaceSide.hxx"
+#include "StdMeshers_NumberOfSegments.hxx"
#include "StdMeshers_ProjectionSource2D.hxx"
#include "StdMeshers_ProjectionUtils.hxx"
-#include "StdMeshers_FaceSide.hxx"
-
-#include "SMDS_EdgePosition.hxx"
-#include "SMDS_FacePosition.hxx"
-#include "SMESHDS_Hypothesis.hxx"
-#include "SMESHDS_SubMesh.hxx"
-#include "SMESH_Block.hxx"
-#include "SMESH_Comment.hxx"
-#include "SMESH_Gen.hxx"
-#include "SMESH_Mesh.hxx"
-#include "SMESH_MesherHelper.hxx"
-#include "SMESH_Pattern.hxx"
-#include "SMESH_subMesh.hxx"
-#include "SMESH_subMeshEventListener.hxx"
-
-#include "utilities.h"
-
+#include "StdMeshers_Quadrangle_2D.hxx"
+#include "StdMeshers_Regular_1D.hxx"
+
+#include <ObjectPool.hxx>
+#include <SMDS_EdgePosition.hxx>
+#include <SMDS_FacePosition.hxx>
+#include <SMESHDS_Hypothesis.hxx>
+#include <SMESHDS_Mesh.hxx>
+#include <SMESHDS_SubMesh.hxx>
+#include <SMESH_Block.hxx>
+#include <SMESH_Comment.hxx>
+#include <SMESH_Gen.hxx>
+#include <SMESH_Mesh.hxx>
+#include <SMESH_SequentialMesh.hxx>
+#include <SMESH_MeshAlgos.hxx>
+#include <SMESH_MeshEditor.hxx>
+#include <SMESH_MesherHelper.hxx>
+#include <SMESH_Pattern.hxx>
+#include <SMESH_subMesh.hxx>
+#include <SMESH_subMeshEventListener.hxx>
+
+#include <utilities.h>
+
+#include <BRepAdaptor_Curve.hxx>
#include <BRepAdaptor_Surface.hxx>
+#include <BRepMesh_Delaun.hxx>
#include <BRep_Tool.hxx>
#include <Bnd_B2d.hxx>
+#include <GeomAPI_ExtremaCurveCurve.hxx>
#include <GeomAPI_ProjectPointOnSurf.hxx>
+#include <GeomAdaptor_Curve.hxx>
+#include <GeomAdaptor_Surface.hxx>
+
+#include <Basics_OCCTVersion.hxx>
+
+#if OCC_VERSION_LARGE < 0x07070000
+#include <GeomAdaptor_HCurve.hxx>
+#include <GeomAdaptor_HSurface.hxx>
+#endif
+
#include <GeomLib_IsPlanarSurface.hxx>
+#include <Geom_Line.hxx>
+#include <IntCurveSurface_HInter.hxx>
+#include <Precision.hxx>
#include <TopExp.hxx>
#include <TopExp_Explorer.hxx>
#include <TopTools_DataMapIteratorOfDataMapOfShapeShape.hxx>
using namespace std;
#define RETURN_BAD_RESULT(msg) { MESSAGE(")-: Error: " << msg); return false; }
+#ifdef _DEBUG_
+// enable printing algo + projection shapes while meshing
+//#define PRINT_WHO_COMPUTE_WHAT
+#endif
namespace TAssocTool = StdMeshers_ProjectionUtils;
//typedef StdMeshers_ProjectionUtils TAssocTool;
+// allow range iteration on NCollection_IndexedMap
+template < class IMAP >
+typename IMAP::const_iterator begin( const IMAP & m ) { return m.cbegin(); }
+template < class IMAP >
+typename IMAP::const_iterator end( const IMAP & m ) { return m.cend(); }
+
//=======================================================================
//function : StdMeshers_Projection_2D
-//purpose :
+//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");
//=======================================================================
//function : CheckHypothesis
-//purpose :
+//purpose :
//=======================================================================
bool StdMeshers_Projection_2D::CheckHypothesis(SMESH_Mesh& theMesh,
//================================================================================
/*!
* \brief find new nodes belonging to one free border of mesh on face
- * \param sm - submesh on edge or vertex containg nodes to choose from
+ * \param sm - submesh on edge or vertex containing nodes to choose from
* \param face - the face bound by the submesh
* \param u2nodes - map to fill with nodes
* \param seamNodes - set of found nodes
//================================================================================
bool getBoundaryNodes ( SMESH_subMesh* sm,
- const TopoDS_Face& face,
+ const TopoDS_Face& /*face*/,
map< double, const SMDS_MeshNode* > & u2nodes,
set< const SMDS_MeshNode* > & seamNodes)
{
break;
}
case TopAbs_EDGE: {
-
+
// Get submeshes of sub-vertices
const map< int, SMESH_subMesh * >& subSM = sm->DependsOn();
if ( subSM.size() != 2 )
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 );
}
const TopoDS_Face& srcFace,
SMESH_Mesh * tgtMesh,
SMESH_Mesh * srcMesh,
+ SMESH_MesherHelper* tgtHelper,
const TAssocTool::TShapeShapeMap& shape2ShapeMap,
TSideVector& srcWires,
TSideVector& tgtWires,
// get ordered src EDGEs
TError err;
- srcWires = StdMeshers_FaceSide::GetFaceWires( srcFace, *srcMesh,/*skipMediumNodes=*/0, err);
+ srcWires = StdMeshers_FaceSide::GetFaceWires( srcFace, *srcMesh,/*skipMediumNodes=*/0, err );
if (( err && !err->IsOK() ) ||
( srcWires.empty() ))
return err;
-
- SMESH_MesherHelper srcHelper( *srcMesh );
- srcHelper.SetSubShape( srcFace );
+#ifdef PRINT_WHO_COMPUTE_WHAT
+ cout << "Projection_2D" << " F "
+ << tgtMesh->GetMeshDS()->ShapeToIndex( tgtFace ) << " <- "
+ << srcMesh->GetMeshDS()->ShapeToIndex( srcFace ) << endl;
+#endif
// make corresponding sequence of tgt EDGEs
tgtWires.resize( srcWires.size() );
tgtWires[ iW ].reset( new StdMeshers_FaceSide( tgtFace, tgtEdges, tgtMesh,
/*theIsForward = */ true,
- /*theIgnoreMediumNodes = */false));
+ /*theIgnoreMediumNodes = */false,
+ tgtHelper ));
StdMeshers_FaceSidePtr tgtWire = tgtWires[ iW ];
// Fill map of src to tgt nodes with nodes on edges
for ( int iE = 0; iE < srcWire->NbEdges(); ++iE )
{
+#ifdef PRINT_WHO_COMPUTE_WHAT
+ if ( tgtMesh->GetSubMesh( tgtWire->Edge(iE) )->IsEmpty() )
+ cout << "Projection_2D" << " E "
+ << tgtWire->EdgeID(iE) << " <- " << srcWire->EdgeID(iE) << endl;
+#endif
if ( srcMesh->GetSubMesh( srcWire->Edge(iE) )->IsEmpty() ||
tgtMesh->GetSubMesh( tgtWire->Edge(iE) )->IsEmpty() )
{
else
{
const bool skipMedium = true, isFwd = true;
- StdMeshers_FaceSide srcEdge( srcFace, srcWire->Edge(iE), srcMesh, isFwd, skipMedium);
- StdMeshers_FaceSide tgtEdge( tgtFace, tgtWire->Edge(iE), tgtMesh, isFwd, skipMedium);
-
+ StdMeshers_FaceSide srcEdge( srcFace, srcWire->Edge(iE),
+ srcMesh, isFwd, skipMedium, srcWires[0]->FaceHelper() );
+ StdMeshers_FaceSide tgtEdge( tgtFace, tgtWire->Edge(iE),
+ tgtMesh, isFwd, skipMedium, tgtHelper);
+
vector< const SMDS_MeshNode* > srcNodes = srcEdge.GetOrderedNodes();
vector< const SMDS_MeshNode* > tgtNodes = tgtEdge.GetOrderedNodes();
//================================================================================
/*!
- * \brief Preform projection in case if tgtFace.IsPartner( srcFace ) and in case
+ * \brief Perform projection in case if tgtFace.IsPartner( srcFace ) and in case
* if projection by 3D transformation is possible
*/
//================================================================================
TAssocTool::TNodeNodeMap& src2tgtNodes,
const bool is1DComputed)
{
- SMESH_Mesh * tgtMesh = tgtWires[0]->GetMesh();
- SMESH_Mesh * srcMesh = srcWires[0]->GetMesh();
- SMESHDS_Mesh* tgtMeshDS = tgtMesh->GetMeshDS();
- SMESHDS_Mesh* srcMeshDS = srcMesh->GetMeshDS();
- SMESH_MesherHelper helper( *tgtMesh );
+ SMESH_Mesh * tgtMesh = tgtWires[0]->GetMesh();
+ SMESH_Mesh * srcMesh = srcWires[0]->GetMesh();
+ SMESHDS_Mesh* tgtMeshDS = tgtMesh->GetMeshDS();
+ SMESHDS_Mesh* srcMeshDS = srcMesh->GetMeshDS();
+ SMESH_MesherHelper* helper = tgtWires[0]->FaceHelper();
const double tol = 1.e-7 * srcMeshDS->getMaxDim();
0.123 * ( srcSurf.FirstVParameter() + srcSurf.LastVParameter() ));
gp_Pnt tgtTrsfP = trsf.Transform( srcP );
TopLoc_Location loc;
- GeomAPI_ProjectPointOnSurf& proj = helper.GetProjector( tgtFace, loc, 0.1*tol );
+ GeomAPI_ProjectPointOnSurf& proj = helper->GetProjector( tgtFace, loc, 0.1*tol );
if ( !loc.IsIdentity() )
tgtTrsfP.Transform( loc.Transformation().Inverted() );
proj.Perform( tgtTrsfP );
// Make new faces
// prepare the helper to adding quadratic elements if necessary
- //helper.SetSubShape( tgtFace );
- helper.IsQuadraticSubMesh( tgtFace );
+ helper->IsQuadraticSubMesh( tgtFace );
SMESHDS_SubMesh* srcSubDS = srcMeshDS->MeshElements( srcFace );
if ( !is1DComputed && srcSubDS->NbElements() )
- helper.SetIsQuadratic( srcSubDS->GetElements()->next()->IsQuadratic() );
+ helper->SetIsQuadratic( srcSubDS->GetElements()->next()->IsQuadratic() );
- SMESH_MesherHelper srcHelper( *srcMesh );
- srcHelper.SetSubShape( srcFace );
+ SMESH_MesherHelper* srcHelper = srcWires[0]->FaceHelper();
+ SMESH_MesherHelper edgeHelper( *tgtMesh );
+ edgeHelper.ToFixNodeParameters( true );
const SMDS_MeshNode* nullNode = 0;
TAssocTool::TNodeNodeMap::iterator srcN_tgtN;
while ( elemIt->more() ) // loop on all mesh faces on srcFace
{
const SMDS_MeshElement* elem = elemIt->next();
- const int nbN = elem->NbCornerNodes();
+ const int nbN = elem->NbCornerNodes();
tgtNodes.resize( nbN );
- helper.SetElementsOnShape( false );
+ helper->SetElementsOnShape( false );
for ( int i = 0; i < nbN; ++i ) // loop on nodes of the source element
{
const SMDS_MeshNode* srcNode = elem->GetNode(i);
{
// create a new node
gp_Pnt tgtP = trsf.Transform( SMESH_TNodeXYZ( srcNode ));
- SMDS_MeshNode* n = helper.AddNode( tgtP.X(), tgtP.Y(), tgtP.Z() );
+ SMDS_MeshNode* n = helper->AddNode( tgtP.X(), tgtP.Y(), tgtP.Z() );
srcN_tgtN->second = n;
switch ( srcNode->GetPosition()->GetTypeOfPosition() )
{
case SMDS_TOP_FACE:
{
- gp_Pnt2d srcUV = srcHelper.GetNodeUV( srcFace, srcNode );
- tgtMeshDS->SetNodeOnFace( n, helper.GetSubShapeID(), srcUV.X(), srcUV.Y() );
+ gp_Pnt2d srcUV = srcHelper->GetNodeUV( srcFace, srcNode );
+ tgtMeshDS->SetNodeOnFace( n, helper->GetSubShapeID(), srcUV.X(), srcUV.Y() );
break;
}
case SMDS_TOP_EDGE:
{
- const TopoDS_Shape & srcE = srcMeshDS->IndexToShape( srcNode->getshapeId() );
- const TopoDS_Shape & tgtE = shape2ShapeMap( srcE, /*isSrc=*/true );
- double srcU = srcHelper.GetNodeU( TopoDS::Edge( srcE ), srcNode );
- tgtMeshDS->SetNodeOnEdge( n, TopoDS::Edge( tgtE ), srcU );
+ const TopoDS_Edge& srcE = TopoDS::Edge( srcMeshDS->IndexToShape( srcNode->getshapeId()));
+ const TopoDS_Edge& tgtE = TopoDS::Edge( shape2ShapeMap( srcE, /*isSrc=*/true ));
+ double srcU = srcHelper->GetNodeU( srcE, srcNode );
+ tgtMeshDS->SetNodeOnEdge( n, tgtE, srcU );
+ if ( !tgtFace.IsPartner( srcFace ))
+ {
+ edgeHelper.SetSubShape( tgtE );
+ double tol = BRep_Tool::Tolerance( tgtE );
+ bool isOk = edgeHelper.CheckNodeU( tgtE, n, srcU, 2 * tol, /*force=*/true );
+ if ( !isOk ) // projection of n to tgtE failed (23395)
+ {
+ double sF, sL, tF, tL;
+ BRep_Tool::Range( srcE, sF, sL );
+ BRep_Tool::Range( tgtE, tF, tL );
+ double srcR = ( srcU - sF ) / ( sL - sF );
+ double tgtU = tF + srcR * ( tL - tF );
+ tgtMeshDS->SetNodeOnEdge( n, tgtE, tgtU );
+ gp_Pnt newP = BRepAdaptor_Curve( tgtE ).Value( tgtU );
+ double dist = newP.Distance( tgtP );
+ if ( tol < dist && dist < 1000*tol )
+ tgtMeshDS->MoveNode( n, newP.X(), newP.Y(), newP.Z() );
+ }
+ }
break;
}
case SMDS_TOP_VERTEX:
tgtNodes[i] = srcN_tgtN->second;
}
// create a new face
- helper.SetElementsOnShape( true );
+ helper->SetElementsOnShape( true );
switch ( nbN )
{
- case 3: helper.AddFace(tgtNodes[0], tgtNodes[tri1], tgtNodes[tri2]); break;
- case 4: helper.AddFace(tgtNodes[0], tgtNodes[quad1], tgtNodes[2], tgtNodes[quad3]); break;
+ case 3: helper->AddFace(tgtNodes[0], tgtNodes[tri1], tgtNodes[tri2]); break;
+ case 4: helper->AddFace(tgtNodes[0], tgtNodes[quad1], tgtNodes[2], tgtNodes[quad3]); break;
default:
if ( isReverse ) std::reverse( tgtNodes.begin(), tgtNodes.end() );
- helper.AddPolygonalFace( tgtNodes );
+ helper->AddPolygonalFace( tgtNodes );
}
}
// check node positions
- if ( !tgtFace.IsPartner( srcFace ) )
+ // if ( !tgtFace.IsPartner( srcFace ) ) for NETGEN 6 which sets wrong UV
{
- SMESH_MesherHelper edgeHelper( *tgtMesh );
- edgeHelper.ToFixNodeParameters( true );
- helper.ToFixNodeParameters( true );
+ helper->ToFixNodeParameters( true );
int nbOkPos = 0;
- bool toCheck = true;
const double tol2d = 1e-12;
srcN_tgtN = src2tgtNodes.begin();
for ( ; srcN_tgtN != src2tgtNodes.end(); ++srcN_tgtN )
case SMDS_TOP_FACE:
{
if ( nbOkPos > 10 ) break;
- gp_XY uv = helper.GetNodeUV( tgtFace, n ), uvBis = uv;
- if (( helper.CheckNodeUV( tgtFace, n, uv, tol )) &&
+ gp_XY uv = helper->GetNodeUV( tgtFace, n ), uvBis = uv;
+ if (( helper->CheckNodeUV( tgtFace, n, uv, tol )) &&
(( uv - uvBis ).SquareModulus() < tol2d ))
++nbOkPos;
else
}
case SMDS_TOP_EDGE:
{
- const TopoDS_Edge & tgtE = TopoDS::Edge( tgtMeshDS->IndexToShape( n->getshapeId() ));
- edgeHelper.SetSubShape( tgtE );
- edgeHelper.GetNodeU( tgtE, n, 0, &toCheck );
+ // const TopoDS_Edge & tgtE = TopoDS::Edge( tgtMeshDS->IndexToShape( n->getshapeId() ));
+ // edgeHelper.SetSubShape( tgtE );
+ // edgeHelper.GetNodeU( tgtE, n, 0, &toCheck );
break;
}
default:;
//================================================================================
/*!
- * \brief Preform projection in case if the faces are similar in 2D space
+ * \brief Perform projection in case if the faces are similar in 2D space
*/
//================================================================================
SMESHDS_SubMesh* srcSubDS = srcMesh->GetMeshDS()->MeshElements( srcFace );
- SMESH_MesherHelper helper( *tgtMesh );
- helper.SetSubShape( tgtFace );
+ SMESH_MesherHelper* helper = tgtWires[0]->FaceHelper();
if ( is1DComputed )
- helper.IsQuadraticSubMesh( tgtFace );
+ helper->IsQuadraticSubMesh( tgtFace );
else
- helper.SetIsQuadratic( srcSubDS->GetElements()->next()->IsQuadratic() );
- helper.SetElementsOnShape( true );
+ helper->SetIsQuadratic( srcSubDS->GetElements()->next()->IsQuadratic() );
+ helper->SetElementsOnShape( true );
Handle(Geom_Surface) tgtSurface = BRep_Tool::Surface( tgtFace );
SMESHDS_Mesh* tgtMeshDS = tgtMesh->GetMeshDS();
- SMESH_MesherHelper srcHelper( *srcMesh );
- srcHelper.SetSubShape( srcFace );
+ SMESH_MesherHelper* srcHelper = srcWires[0]->FaceHelper();
const SMDS_MeshNode* nullNode = 0;
TAssocTool::TNodeNodeMap::iterator srcN_tgtN;
while ( elemIt->more() ) // loop on all mesh faces on srcFace
{
const SMDS_MeshElement* elem = elemIt->next();
- const int nbN = elem->NbCornerNodes();
+ const int nbN = elem->NbCornerNodes();
tgtNodes.resize( nbN );
for ( int i = 0; i < nbN; ++i ) // loop on nodes of the source element
{
if ( srcN_tgtN->second == nullNode )
{
// create a new node
- gp_Pnt2d srcUV = srcHelper.GetNodeUV( srcFace, srcNode,
- elem->GetNode( helper.WrapIndex(i+1,nbN)), &uvOK);
+ gp_Pnt2d srcUV = srcHelper->GetNodeUV( srcFace, srcNode,
+ elem->GetNode( helper->WrapIndex(i+1,nbN)), &uvOK);
gp_Pnt2d tgtUV = trsf.Transform( srcUV );
gp_Pnt tgtP = tgtSurface->Value( tgtUV.X(), tgtUV.Y() );
SMDS_MeshNode* n = tgtMeshDS->AddNode( tgtP.X(), tgtP.Y(), tgtP.Z() );
switch ( srcNode->GetPosition()->GetTypeOfPosition() )
{
case SMDS_TOP_FACE: {
- tgtMeshDS->SetNodeOnFace( n, helper.GetSubShapeID(), tgtUV.X(), tgtUV.Y() );
+ tgtMeshDS->SetNodeOnFace( n, helper->GetSubShapeID(), tgtUV.X(), tgtUV.Y() );
break;
}
case SMDS_TOP_EDGE: {
- TopoDS_Shape srcEdge = srcHelper.GetSubShapeByNode( srcNode, srcHelper.GetMeshDS() );
+ TopoDS_Shape srcEdge = srcHelper->GetSubShapeByNode( srcNode, srcHelper->GetMeshDS() );
TopoDS_Edge tgtEdge = TopoDS::Edge( shape2ShapeMap( srcEdge, /*isSrc=*/true ));
double U = Precision::Infinite();
- helper.CheckNodeU( tgtEdge, n, U, Precision::PConfusion());
+ helper->CheckNodeU( tgtEdge, n, U, Precision::PConfusion());
tgtMeshDS->SetNodeOnEdge( n, TopoDS::Edge( tgtEdge ), U );
break;
}
case SMDS_TOP_VERTEX: {
- TopoDS_Shape srcV = srcHelper.GetSubShapeByNode( srcNode, srcHelper.GetMeshDS() );
+ TopoDS_Shape srcV = srcHelper->GetSubShapeByNode( srcNode, srcHelper->GetMeshDS() );
TopoDS_Shape tgtV = shape2ShapeMap( srcV, /*isSrc=*/true );
tgtMeshDS->SetNodeOnVertex( n, TopoDS::Vertex( tgtV ));
break;
// create a new face (with reversed orientation)
switch ( nbN )
{
- case 3: helper.AddFace(tgtNodes[0], tgtNodes[2], tgtNodes[1]); break;
- case 4: helper.AddFace(tgtNodes[0], tgtNodes[3], tgtNodes[2], tgtNodes[1]); break;
+ case 3: helper->AddFace(tgtNodes[0], tgtNodes[2], tgtNodes[1]); break;
+ case 4: helper->AddFace(tgtNodes[0], tgtNodes[3], tgtNodes[2], tgtNodes[1]); break;
}
} // loop on all mesh faces on srcFace
return true;
+
+ } // projectBy2DSimilarity()
+
+ //================================================================================
+ /*!
+ * \brief Quadrangle algorithm computing structured triangle mesh
+ */
+ //================================================================================
+
+ struct QuadAlgo : public StdMeshers_Quadrangle_2D
+ {
+ QuadAlgo( int hypId, SMESH_Gen* gen ): StdMeshers_Quadrangle_2D( hypId, gen ) {}
+
+ bool Compute( SMESH_MesherHelper & theHelper, const StdMeshers_FaceSidePtr& theWire )
+ {
+ SMESH_Mesh& theMesh = *theHelper.GetMesh();
+
+ // set sides of a quad FACE
+ FaceQuadStruct::Ptr quad( new FaceQuadStruct );
+ quad->side.reserve( 4 );
+ quad->face = theWire->Face();
+ for ( int i = 0; i < 4; ++i )
+ quad->side.push_back
+ ( StdMeshers_FaceSide::New( quad->face, theWire->Edge(i), &theMesh, i < QUAD_TOP_SIDE,
+ /*skipMedium=*/true, theWire->FaceHelper() ));
+ if ( !setNormalizedGrid( quad ))
+ return false;
+
+ // make internal nodes
+ SMESHDS_Mesh * meshDS = theMesh.GetMeshDS();
+ int geomFaceID = meshDS->ShapeToIndex( quad->face );
+ Handle(Geom_Surface) S = BRep_Tool::Surface( quad->face );
+ for ( int i = 1; i < quad->iSize - 1; i++)
+ for ( int j = 1; j < quad->jSize - 1; j++)
+ {
+ UVPtStruct& uvPnt = quad->UVPt( i, j );
+ gp_Pnt P = S->Value( uvPnt.u, uvPnt.v );
+ uvPnt.node = meshDS->AddNode(P.X(), P.Y(), P.Z());
+ meshDS->SetNodeOnFace( uvPnt.node, geomFaceID, uvPnt.u, uvPnt.v );
+ }
+
+ // make triangles
+ for ( int i = 0; i < quad->iSize-1; i++) {
+ for ( int j = 0; j < quad->jSize-1; j++)
+ {
+ const SMDS_MeshNode* a = quad->uv_grid[ j * quad->iSize + i ].node;
+ const SMDS_MeshNode* b = quad->uv_grid[ j * quad->iSize + i + 1].node;
+ const SMDS_MeshNode* c = quad->uv_grid[(j + 1) * quad->iSize + i + 1].node;
+ const SMDS_MeshNode* d = quad->uv_grid[(j + 1) * quad->iSize + i ].node;
+ theHelper.AddFace(a, b, c);
+ theHelper.AddFace(a, c, d);
+ }
+ }
+ return true;
+ }
+ };
+
+ //================================================================================
+ /*!
+ * \brief Local coordinate system of a triangle. Return barycentric coordinates of a point
+ */
+ //================================================================================
+
+ struct TriaCoordSys
+ {
+ gp_Pnt myO; //!< origin
+ gp_Vec myX; //!< X axis
+ gp_Vec myY; //!< Y axis
+ gp_XY myUV1; //!< UV of 2nd node in this CS
+ gp_XY myUV2; //!< UV of 3d node in this CS
+
+ void Init( const gp_Pnt p1, const gp_Pnt p2, const gp_Pnt p3 )
+ {
+ myO = p1;
+
+ myX = gp_Vec( p1, p2 );
+ myUV1.SetCoord( myX.Magnitude(), 0 );
+ myX /= myUV1.X();
+
+ gp_Vec v13( p1, p3 );
+ myY = myX.CrossCrossed( myX, v13 );
+ myY.Normalize();
+ myUV2.SetCoord( v13 * myX, v13 * myY );
+
+ return;
+ }
+
+ void GetBaryCoords( const gp_Pnt p, double& bc1, double& bc2, double& bc3 ) const
+ {
+ gp_Vec op( myO, p );
+ gp_XY uv( op * myX, op * myY );
+
+ SMESH_MeshAlgos::GetBarycentricCoords( uv,
+ gp::Origin2d().XY(), myUV1, myUV2,
+ bc1, bc2 );
+ bc3 = 1 - bc1 - bc2;
+ }
+ };
+
+
+ //================================================================================
+ /*!
+ * \brief Structured 2D mesh of a quadrilateral FACE; is used in projectQuads()
+ */
+ //================================================================================
+
+ struct QuadMesh : public SMESH_SequentialMesh
+ {
+ ObjectPool< TriaCoordSys > _traiLCSPool;
+ SMESH_ElementSearcher* _elemSearcher;
+ SMESH_Gen _sgen;
+ SMESH_MesherHelper _helper;
+
+ QuadMesh(const TopoDS_Face& face):
+ _elemSearcher( nullptr ), _helper( *this )
+ {
+ _meshDS = new SMESHDS_Mesh( 0, true );
+ _gen = &_sgen;
+ ShapeToMesh( face );
+ }
+ ~QuadMesh() { delete _elemSearcher; }
+
+ // --------------------------------------------------------------------------------
+ /*!
+ * \brief Compute quadrangle mesh and prepare for face search
+ */
+ bool Compute( const TSideVector& wires, int nbSeg1, int nbSeg2, bool isSourceMesh )
+ {
+ if ( wires.size() > 1 || wires[0]->NbEdges() != 4 )
+ return false;
+
+ // compute quadrangle mesh
+
+ SMESH_Hypothesis* algo1D = new StdMeshers_Regular_1D( _sgen.GetANewId(), &_sgen );
+ AddHypothesis( GetShapeToMesh(), algo1D->GetID() );
+
+ StdMeshers_NumberOfSegments * nbHyp1, *nbHyp2;
+ nbHyp1 = new StdMeshers_NumberOfSegments( _sgen.GetANewId(), &_sgen );
+ nbHyp1->SetNumberOfSegments( nbSeg1 );
+ AddHypothesis( wires[0]->Edge(0), nbHyp1->GetID() );
+ AddHypothesis( wires[0]->Edge(2), nbHyp1->GetID() );
+
+ nbHyp2 = new StdMeshers_NumberOfSegments( _sgen.GetANewId(), &_sgen );
+ nbHyp2->SetNumberOfSegments( nbSeg2 );
+ AddHypothesis( wires[0]->Edge(1), nbHyp2->GetID() );
+ AddHypothesis( wires[0]->Edge(3), nbHyp2->GetID() );
+
+ if ( !_sgen.Compute( *this, GetShapeToMesh(), SMESH_Gen::SHAPE_ONLY_UPWARD ))
+ return false;
+
+ QuadAlgo algo2D( _sgen.GetANewId(), &_sgen );
+ if ( !algo2D.Compute( _helper, wires[0] ))
+ return false;
+
+ // remove edges
+ // for ( SMDS_ElemIteratorPtr eIt = _meshDS->elementsIterator( SMDSAbs_Edge ); eIt->more(); )
+ // _meshDS->RemoveFreeElement( eIt->next(), /*sm=*/0, /*groups=*/false );
+
+ // _meshDS->Modified(); // setMyModified();
+ // _meshDS->CompactMesh();
+
+ // create TriaCoordSys for every triangle
+ if ( isSourceMesh )
+ {
+ for ( SMDS_ElemIteratorPtr fIt = _meshDS->elementsIterator( SMDSAbs_Face ); fIt->more(); )
+ {
+ const SMDS_MeshElement* tria = fIt->next();
+ TriaCoordSys* triaLCS = _traiLCSPool.getNew();
+ triaLCS->Init( SMESH_NodeXYZ( tria->GetNode( 0 )),
+ SMESH_NodeXYZ( tria->GetNode( 1 )),
+ SMESH_NodeXYZ( tria->GetNode( 2 )));
+ // int i= tria->GetID() - NbEdges() - 1;
+ // cout << "ID from TRIA " << i << " - poolSize " << _traiLCSPool.nbElements() <<
+ // ( _traiLCSPool[i]!= triaLCS ? " KO" : "" ) << endl;
+ }
+ _elemSearcher = SMESH_MeshAlgos::GetElementSearcher( *_meshDS );
+ }
+ return true;
+ }
+ // --------------------------------------------------------------------------------
+ /*!
+ * \brief Find a source triangle including a point and return its barycentric coordinates
+ */
+ const SMDS_MeshElement* FindFaceByPoint( const gp_Pnt p,
+ double & bc1, double & bc2, double & bc3 )
+ {
+ const SMDS_MeshElement* tria = nullptr;
+ gp_XYZ projPnt = _elemSearcher->Project( p, SMDSAbs_Face, &tria );
+
+ int lcsID = tria->GetID() - NbEdges() - 1;
+ const TriaCoordSys* triaLCS = _traiLCSPool[ lcsID ];
+ triaLCS->GetBaryCoords( projPnt, bc1, bc2, bc3 );
+
+ return tria;
+ }
+ // --------------------------------------------------------------------------------
+ /*!
+ * \brief Return a point lying on a corresponding target triangle
+ */
+ gp_Pnt GetPoint( const SMDS_MeshElement* srcTria, double & bc1, double & bc2, double & bc3 )
+ {
+ const SMDS_MeshElement* tgtTria = _meshDS->FindElement( srcTria->GetID() );
+ gp_Pnt p = ( bc1 * SMESH_NodeXYZ( tgtTria->GetNode(0) ) +
+ bc2 * SMESH_NodeXYZ( tgtTria->GetNode(1) ) +
+ bc3 * SMESH_NodeXYZ( tgtTria->GetNode(2) ) );
+ return p;
+ }
+ // --------------------------------------------------------------------------------
+ /*!
+ * \brief Return an UV of point lying on a corresponding target triangle
+ */
+ gp_XY GetUV( const SMDS_MeshElement* srcTria,
+ double & bc1, double & bc2, double & bc3 )
+ {
+ const SMDS_MeshElement* tgtTria = _meshDS->FindElement( srcTria->GetID() );
+ TopoDS_Shape tgtShape = GetShapeToMesh();
+ const TopoDS_Face& face = TopoDS::Face( tgtShape );
+
+ gp_XY p = ( bc1 * _helper.GetNodeUV( face, tgtTria->GetNode(0) ) +
+ bc2 * _helper.GetNodeUV( face, tgtTria->GetNode(1) ) +
+ bc3 * _helper.GetNodeUV( face, tgtTria->GetNode(2) ) );
+ return p;
+ }
+ };
+
+ //================================================================================
+ /*!
+ * \brief Calculate average size of faces
+ * Actually calculate average of min and max face size
+ */
+ //================================================================================
+
+ double calcAverageFaceSize( SMESHDS_SubMesh* sm )
+ {
+ double minLen = Precision::Infinite(), maxLen = 0;
+ for ( SMDS_ElemIteratorPtr fIt = sm->GetElements(); fIt->more(); )
+ {
+ const SMDS_MeshElement* face = fIt->next();
+ int nbNodes = face->NbCornerNodes();
+ gp_XYZ pPrev = SMESH_NodeXYZ( face->GetNode( nbNodes - 1 ));
+ for ( int i = 0; i < nbNodes; ++i )
+ {
+ SMESH_NodeXYZ p( face->GetNode( i ));
+ double len = ( p - pPrev ).SquareModulus();
+ minLen = Min( len, minLen );
+ maxLen = Max( len, maxLen );
+ pPrev = p;
+ }
+ }
+ return 0.5 * ( Sqrt( minLen ) + Sqrt( maxLen ));
}
//================================================================================
/*!
- * \brief Preform projection in case of quadrilateral faces
+ * \brief Perform projection from a quadrilateral FACE to another quadrilateral one
*/
//================================================================================
{
SMESH_Mesh * tgtMesh = tgtWires[0]->GetMesh();
SMESH_Mesh * srcMesh = srcWires[0]->GetMesh();
- //SMESHDS_Mesh * tgtMeshDS = tgtMesh->GetMeshDS();
+ SMESHDS_Mesh * tgtMeshDS = tgtMesh->GetMeshDS();
SMESHDS_Mesh * srcMeshDS = srcMesh->GetMeshDS();
- if ( srcWires[0]->NbEdges() != 4 )
- return false;
- if ( !is1DComputed )
+ if ( srcWires.size() != 1 || // requirements below can be weaken
+ SMESH_MesherHelper::Count( tgtFace, TopAbs_EDGE, /*ignoreSame=*/true) != 4 ||
+ SMESH_MesherHelper::Count( srcFace, TopAbs_EDGE, /*ignoreSame=*/true) != 4 )
return false;
- for ( int iE = 0; iE < 4; ++iE )
- {
- SMESHDS_SubMesh* sm = srcMeshDS->MeshElements( srcWires[0]->Edge( iE ));
- if ( !sm ) return false;
- if ( sm->NbNodes() + sm->NbElements() == 0 ) return false;
- }
- if ( BRepAdaptor_Surface( tgtFace ).GetType() != GeomAbs_Plane )
+
+ // make auxiliary structured meshes that will be used to get corresponding
+ // points on the target FACE
+ QuadMesh srcQuadMesh( srcFace ), tgtQuadMesh( tgtFace );
+ double avgSize = calcAverageFaceSize( srcMeshDS->MeshElements( srcFace ));
+ int nbSeg1 = (int) Max( 2., Max( srcWires[0]->EdgeLength(0),
+ srcWires[0]->EdgeLength(2)) / avgSize );
+ int nbSeg2 = (int) Max( 2., Max( srcWires[0]->EdgeLength(1),
+ srcWires[0]->EdgeLength(3)) / avgSize );
+ if ( !srcQuadMesh.Compute( srcWires, nbSeg1, nbSeg2, /*isSrc=*/true ) ||
+ !tgtQuadMesh.Compute( tgtWires, nbSeg1, nbSeg2, /*isSrc=*/false ))
return false;
- // if ( BRepAdaptor_Surface( tgtFace ).GetType() == GeomAbs_Plane &&
- // BRepAdaptor_Surface( srcFace ).GetType() == GeomAbs_Plane )
- // return false; // too easy
- // load EDGEs to SMESH_Block
+ // Make new faces
- SMESH_Block block;
- TopTools_IndexedMapOfOrientedShape blockSubShapes;
- {
- const TopoDS_Solid& box = srcMesh->PseudoShape();
- TopoDS_Shell shell = TopoDS::Shell( TopExp_Explorer( box, TopAbs_SHELL ).Current() );
- TopoDS_Vertex v;
- block.LoadBlockShapes( shell, v, v, blockSubShapes ); // fill all since operator[] is missing
- }
- const SMESH_Block::TShapeID srcFaceBID = SMESH_Block::ID_Fxy0;
- const SMESH_Block::TShapeID tgtFaceBID = SMESH_Block::ID_Fxy1;
- vector< int > edgeBID;
- block.GetFaceEdgesIDs( srcFaceBID, edgeBID ); // u0, u1, 0v, 1v
- blockSubShapes.Substitute( edgeBID[0], srcWires[0]->Edge(0) );
- blockSubShapes.Substitute( edgeBID[1], srcWires[0]->Edge(2) );
- blockSubShapes.Substitute( edgeBID[2], srcWires[0]->Edge(3) );
- blockSubShapes.Substitute( edgeBID[3], srcWires[0]->Edge(1) );
- block.GetFaceEdgesIDs( tgtFaceBID, edgeBID ); // u0, u1, 0v, 1v
- blockSubShapes.Substitute( edgeBID[0], tgtWires[0]->Edge(0) );
- blockSubShapes.Substitute( edgeBID[1], tgtWires[0]->Edge(2) );
- blockSubShapes.Substitute( edgeBID[2], tgtWires[0]->Edge(3) );
- blockSubShapes.Substitute( edgeBID[3], tgtWires[0]->Edge(1) );
- block.LoadFace( srcFace, srcFaceBID, blockSubShapes );
- block.LoadFace( tgtFace, tgtFaceBID, blockSubShapes );
-
- // remember connectivity of new faces in terms of ( node-or-XY )
-
- typedef std::pair< const SMDS_MeshNode*, gp_XYZ > TNodeOrXY; // node-or-XY
- typedef std::vector< TNodeOrXY* > TFaceConn; // face connectivity
- std::vector< TFaceConn > newFacesVec; // connectivity of all faces
- std::map< const SMDS_MeshNode*, TNodeOrXY > srcNode2tgtNXY; // src node -> node-or-XY
-
- TAssocTool::TNodeNodeMap::iterator srcN_tgtN;
- std::map< const SMDS_MeshNode*, TNodeOrXY >::iterator srcN_tgtNXY;
- std::pair< std::map< const SMDS_MeshNode*, TNodeOrXY >::iterator, bool > n2n_isNew;
- TNodeOrXY nullNXY( (SMDS_MeshNode*)NULL, gp_XYZ(0,0,0) );
+ // prepare the helper to adding quadratic elements if necessary
+ SMESH_MesherHelper* helper = tgtWires[0]->FaceHelper();
+ helper->IsQuadraticSubMesh( tgtFace );
SMESHDS_SubMesh* srcSubDS = srcMeshDS->MeshElements( srcFace );
- newFacesVec.resize( srcSubDS->NbElements() );
- int iFaceSrc = 0;
+ if ( !is1DComputed && srcSubDS->NbElements() )
+ helper->SetIsQuadratic( srcSubDS->GetElements()->next()->IsQuadratic() );
+
+ SMESH_MesherHelper* srcHelper = srcWires[0]->FaceHelper();
+ SMESH_MesherHelper edgeHelper( *tgtMesh );
+ edgeHelper.ToFixNodeParameters( true );
+
+ const SMDS_MeshNode* nullNode = 0;
+ TAssocTool::TNodeNodeMap::iterator srcN_tgtN;
SMDS_ElemIteratorPtr elemIt = srcSubDS->GetElements();
+ vector< const SMDS_MeshNode* > tgtNodes;
while ( elemIt->more() ) // loop on all mesh faces on srcFace
{
const SMDS_MeshElement* elem = elemIt->next();
- TFaceConn& tgtNodes = newFacesVec[ iFaceSrc++ ];
-
- const int nbN = elem->NbCornerNodes();
+ const int nbN = elem->NbCornerNodes();
tgtNodes.resize( nbN );
+ helper->SetElementsOnShape( false );
for ( int i = 0; i < nbN; ++i ) // loop on nodes of the source element
{
const SMDS_MeshNode* srcNode = elem->GetNode(i);
- n2n_isNew = srcNode2tgtNXY.insert( make_pair( srcNode, nullNXY ));
- TNodeOrXY & tgtNodeOrXY = n2n_isNew.first->second;
- if ( n2n_isNew.second ) // new src node encounters
+ srcN_tgtN = src2tgtNodes.insert( make_pair( srcNode, nullNode )).first;
+ if ( srcN_tgtN->second == nullNode )
{
- srcN_tgtN = src2tgtNodes.find( srcNode );
- if ( srcN_tgtN != src2tgtNodes.end() )
+ // create a new node
+ gp_Pnt srcP = SMESH_TNodeXYZ( srcNode );
+ double bc[3];
+ const SMDS_MeshElement* auxF = srcQuadMesh.FindFaceByPoint( srcP, bc[0], bc[1], bc[2] );
+ gp_Pnt tgtP = tgtQuadMesh.GetPoint( auxF, bc[0], bc[1], bc[2] );
+ SMDS_MeshNode* n = helper->AddNode( tgtP.X(), tgtP.Y(), tgtP.Z() );
+ srcN_tgtN->second = n;
+ switch ( srcNode->GetPosition()->GetTypeOfPosition() )
+ {
+ case SMDS_TOP_FACE:
{
- tgtNodeOrXY.first = srcN_tgtN->second; // tgt node exists
+ gp_XY tgtUV = tgtQuadMesh.GetUV( auxF, bc[0], bc[1], bc[2] );
+ tgtMeshDS->SetNodeOnFace( n, helper->GetSubShapeID(), tgtUV.X(), tgtUV.Y() );
+ break;
}
- else
+ case SMDS_TOP_EDGE:
{
- // find XY of src node withing the quadrilateral srcFace
- if ( !block.ComputeParameters( SMESH_TNodeXYZ( srcNode ),
- tgtNodeOrXY.second, srcFaceBID ))
- return false;
+ const TopoDS_Edge& srcE = TopoDS::Edge( srcMeshDS->IndexToShape( srcNode->GetShapeID()));
+ const TopoDS_Edge& tgtE = TopoDS::Edge( shape2ShapeMap( srcE, /*isSrc=*/true ));
+ double srcU = srcHelper->GetNodeU( srcE, srcNode );
+ tgtMeshDS->SetNodeOnEdge( n, tgtE, srcU );
+ edgeHelper.SetSubShape( tgtE );
+ double tol = BRep_Tool::MaxTolerance( tgtE, TopAbs_VERTEX ), distXYZ[4];
+ /*isOk = */edgeHelper.CheckNodeU( tgtE, n, srcU, 2 * tol, /*force=*/true, distXYZ );
+ //if ( isOk )
+ tgtMeshDS->MoveNode( n, distXYZ[1], distXYZ[2], distXYZ[3] );
+ SMDS_EdgePositionPtr( n->GetPosition() )->SetUParameter( srcU );
+ break;
+ }
+ case SMDS_TOP_VERTEX:
+ {
+ const TopoDS_Shape & srcV = srcMeshDS->IndexToShape( srcNode->getshapeId() );
+ const TopoDS_Shape & tgtV = shape2ShapeMap( srcV, /*isSrc=*/true );
+ tgtP = BRep_Tool::Pnt( TopoDS::Vertex( tgtV ));
+ tgtMeshDS->MoveNode( n, tgtP.X(), tgtP.Y(), tgtP.Z() );
+ tgtMeshDS->SetNodeOnVertex( n, TopoDS::Vertex( tgtV ));
+ break;
+ }
+ default:;
}
}
- tgtNodes[ i ] = & tgtNodeOrXY;
+ tgtNodes[i] = srcN_tgtN->second;
}
- }
+ // create a new face
+ helper->SetElementsOnShape( true );
+ switch ( nbN )
+ {
+ case 3: helper->AddFace(tgtNodes[0], tgtNodes[1], tgtNodes[2]); break;
+ case 4: helper->AddFace(tgtNodes[0], tgtNodes[1], tgtNodes[2], tgtNodes[3]); break;
+ default: helper->AddPolygonalFace( tgtNodes );
+ }
+ } // // loop on all mesh faces on srcFace
- // as all XY are computed, create tgt nodes and faces
+ return true;
- SMESH_MesherHelper helper( *tgtMesh );
- helper.SetSubShape( tgtFace );
- if ( is1DComputed )
- helper.IsQuadraticSubMesh( tgtFace );
- else
- helper.SetIsQuadratic( srcSubDS->GetElements()->next()->IsQuadratic() );
- helper.SetElementsOnShape( true );
- Handle(Geom_Surface) tgtSurface = BRep_Tool::Surface( tgtFace );
+ // below is projection of a structured source mesh
- SMESH_MesherHelper srcHelper( *srcMesh );
- srcHelper.SetSubShape( srcFace );
+ // if ( !is1DComputed )
+ // return false;
+ // for ( int iE = 0; iE < 4; ++iE )
+ // {
+ // SMESHDS_SubMesh* sm = srcMeshDS->MeshElements( srcWires[0]->Edge( iE ));
+ // if ( !sm ) return false;
+ // if ( sm->NbNodes() + sm->NbElements() == 0 ) return false;
+ // }
+ // if ( BRepAdaptor_Surface( tgtFace ).GetType() != GeomAbs_Plane )
+ // return false;
+ // // if ( BRepAdaptor_Surface( tgtFace ).GetType() == GeomAbs_Plane &&
+ // // BRepAdaptor_Surface( srcFace ).GetType() == GeomAbs_Plane )
+ // // return false; // too easy
- vector< const SMDS_MeshNode* > tgtNodes;
- gp_XY uv;
+ // // load EDGEs to SMESH_Block
- for ( size_t iFaceTgt = 0; iFaceTgt < newFacesVec.size(); ++iFaceTgt )
- {
- TFaceConn& tgtConn = newFacesVec[ iFaceTgt ];
- tgtNodes.resize( tgtConn.size() );
- for ( size_t iN = 0; iN < tgtConn.size(); ++iN )
- {
- const SMDS_MeshNode* & tgtN = tgtConn[ iN ]->first;
- if ( !tgtN ) // create a node
- {
- if ( !block.FaceUV( tgtFaceBID, tgtConn[iN]->second, uv ))
- return false;
- gp_Pnt p = tgtSurface->Value( uv.X(), uv.Y() );
- tgtN = helper.AddNode( p.X(), p.Y(), p.Z(), uv.X(), uv.Y() );
- }
- tgtNodes[ tgtNodes.size() - iN - 1] = tgtN; // reversed orientation
- }
- switch ( tgtNodes.size() )
- {
- case 3: helper.AddFace(tgtNodes[0], tgtNodes[1], tgtNodes[2]); break;
- case 4: helper.AddFace(tgtNodes[0], tgtNodes[1], tgtNodes[2], tgtNodes[3]); break;
- default:
- if ( tgtNodes.size() > 4 )
- helper.AddPolygonalFace( tgtNodes );
- }
- }
- return true;
+ // SMESH_Block block;
+ // TopTools_IndexedMapOfOrientedShape blockSubShapes;
+ // {
+ // const TopoDS_Solid& box = srcMesh->PseudoShape();
+ // TopoDS_Shell shell = TopoDS::Shell( TopExp_Explorer( box, TopAbs_SHELL ).Current() );
+ // TopoDS_Vertex v;
+ // block.LoadBlockShapes( shell, v, v, blockSubShapes ); // fill all since operator[] is missing
+ // }
+ // const SMESH_Block::TShapeID srcFaceBID = SMESH_Block::ID_Fxy0;
+ // const SMESH_Block::TShapeID tgtFaceBID = SMESH_Block::ID_Fxy1;
+ // vector< int > edgeBID;
+ // block.GetFaceEdgesIDs( srcFaceBID, edgeBID ); // u0, u1, 0v, 1v
+ // blockSubShapes.Substitute( edgeBID[0], srcWires[0]->Edge(0) );
+ // blockSubShapes.Substitute( edgeBID[1], srcWires[0]->Edge(2) );
+ // blockSubShapes.Substitute( edgeBID[2], srcWires[0]->Edge(3) );
+ // blockSubShapes.Substitute( edgeBID[3], srcWires[0]->Edge(1) );
+ // block.GetFaceEdgesIDs( tgtFaceBID, edgeBID ); // u0, u1, 0v, 1v
+ // blockSubShapes.Substitute( edgeBID[0], tgtWires[0]->Edge(0) );
+ // blockSubShapes.Substitute( edgeBID[1], tgtWires[0]->Edge(2) );
+ // blockSubShapes.Substitute( edgeBID[2], tgtWires[0]->Edge(3) );
+ // blockSubShapes.Substitute( edgeBID[3], tgtWires[0]->Edge(1) );
+ // block.LoadFace( srcFace, srcFaceBID, blockSubShapes );
+ // block.LoadFace( tgtFace, tgtFaceBID, blockSubShapes );
+
+ // // remember connectivity of new faces in terms of ( node-or-XY )
+
+ // typedef std::pair< const SMDS_MeshNode*, gp_XYZ > TNodeOrXY; // node-or-XY
+ // typedef std::vector< TNodeOrXY* > TFaceConn; // face connectivity
+ // std::vector< TFaceConn > newFacesVec; // connectivity of all faces
+ // std::map< const SMDS_MeshNode*, TNodeOrXY > srcNode2tgtNXY; // src node -> node-or-XY
+
+ // TAssocTool::TNodeNodeMap::iterator srcN_tgtN;
+ // std::map< const SMDS_MeshNode*, TNodeOrXY >::iterator srcN_tgtNXY;
+ // std::pair< std::map< const SMDS_MeshNode*, TNodeOrXY >::iterator, bool > n2n_isNew;
+ // TNodeOrXY nullNXY( (SMDS_MeshNode*)NULL, gp_XYZ(0,0,0) );
+
+ // SMESHDS_SubMesh* srcSubDS = srcMeshDS->MeshElements( srcFace );
+ // newFacesVec.resize( srcSubDS->NbElements() );
+ // int iFaceSrc = 0;
+
+ // SMDS_ElemIteratorPtr elemIt = srcSubDS->GetElements();
+ // while ( elemIt->more() ) // loop on all mesh faces on srcFace
+ // {
+ // const SMDS_MeshElement* elem = elemIt->next();
+ // TFaceConn& tgtNodes = newFacesVec[ iFaceSrc++ ];
+
+ // const int nbN = elem->NbCornerNodes();
+ // tgtNodes.resize( nbN );
+ // for ( int i = 0; i < nbN; ++i ) // loop on nodes of the source element
+ // {
+ // const SMDS_MeshNode* srcNode = elem->GetNode(i);
+ // n2n_isNew = srcNode2tgtNXY.insert( make_pair( srcNode, nullNXY ));
+ // TNodeOrXY & tgtNodeOrXY = n2n_isNew.first->second;
+ // if ( n2n_isNew.second ) // new src node encounters
+ // {
+ // srcN_tgtN = src2tgtNodes.find( srcNode );
+ // if ( srcN_tgtN != src2tgtNodes.end() )
+ // {
+ // tgtNodeOrXY.first = srcN_tgtN->second; // tgt node exists
+ // }
+ // else
+ // {
+ // // find XY of src node within the quadrilateral srcFace
+ // if ( !block.ComputeParameters( SMESH_TNodeXYZ( srcNode ),
+ // tgtNodeOrXY.second, srcFaceBID ))
+ // return false;
+ // }
+ // }
+ // tgtNodes[ i ] = & tgtNodeOrXY;
+ // }
+ // }
+
+ // // as all XY are computed, create tgt nodes and faces
+
+ // SMESH_MesherHelper helper = *tgtWires[0]->FaceHelper();
+ // if ( is1DComputed )
+ // helper.IsQuadraticSubMesh( tgtFace );
+ // else
+ // helper.SetIsQuadratic( srcSubDS->GetElements()->next()->IsQuadratic() );
+ // helper.SetElementsOnShape( true );
+ // Handle(Geom_Surface) tgtSurface = BRep_Tool::Surface( tgtFace );
+
+ // SMESH_MesherHelper srcHelper = *srcWires[0]->FaceHelper();
+
+ // vector< const SMDS_MeshNode* > tgtNodes;
+ // gp_XY uv;
+
+ // for ( size_t iFaceTgt = 0; iFaceTgt < newFacesVec.size(); ++iFaceTgt )
+ // {
+ // TFaceConn& tgtConn = newFacesVec[ iFaceTgt ];
+ // tgtNodes.resize( tgtConn.size() );
+ // for ( size_t iN = 0; iN < tgtConn.size(); ++iN )
+ // {
+ // const SMDS_MeshNode* & tgtN = tgtConn[ iN ]->first;
+ // if ( !tgtN ) // create a node
+ // {
+ // if ( !block.FaceUV( tgtFaceBID, tgtConn[iN]->second, uv ))
+ // return false;
+ // gp_Pnt p = tgtSurface->Value( uv.X(), uv.Y() );
+ // tgtN = helper.AddNode( p.X(), p.Y(), p.Z(), uv.X(), uv.Y() );
+ // }
+ // tgtNodes[ tgtNodes.size() - iN - 1] = tgtN; // reversed orientation
+ // }
+ // switch ( tgtNodes.size() )
+ // {
+ // case 3: helper.AddFace(tgtNodes[0], tgtNodes[1], tgtNodes[2]); break;
+ // case 4: helper.AddFace(tgtNodes[0], tgtNodes[1], tgtNodes[2], tgtNodes[3]); break;
+ // default:
+ // if ( tgtNodes.size() > 4 )
+ // helper.AddPolygonalFace( tgtNodes );
+ // }
+ // }
+ return false; //true;
} // bool projectQuads(...)
{
SMESH_subMesh* faceSM = helper.GetMesh()->GetSubMesh( helper.GetSubShape() );
- if ( helper.IsDistorted2D( faceSM, /*checkUV=*/false ))
+ //if ( helper.IsDistorted2D( faceSM, /*checkUV=*/true ))
{
SMESH_MeshEditor editor( helper.GetMesh() );
SMESHDS_SubMesh* smDS = faceSM->GetSubMeshDS();
SMESH_Mesh* srcMesh,
TAssocTool::TShapeShapeMap & assocMap)
{
- if ( !tgtHelper.HasRealSeam() )
+ if ( !tgtHelper.HasRealSeam() || srcFace.ShapeType() != TopAbs_FACE )
return; // no seam edge
list< TopoDS_Edge > tgtEdges, srcEdges;
list< int > tgtNbEW, srcNbEW;
tgtNbEW.front() != 4 || srcNbEW.front() != 4 )
return; // not quads
- int srcNbSeg[4];
+ smIdType srcNbSeg[4];
list< TopoDS_Edge >::iterator edgeS = srcEdges.begin(), edgeT = tgtEdges.begin();
for ( int i = 0; edgeS != srcEdges.end(); ++i, ++edgeS )
if ( SMESHDS_SubMesh* sm = srcMesh->GetMeshDS()->MeshElements( *edgeS ))
tgtHelper.IthVertex( 1,*edgeS ), assocMap );
}
+ //================================================================================
+ /*!
+ * \brief Find sub-shape association such that corresponding VERTEXes of
+ * two corresponding FACEs lie on lines parallel to thePiercingLine
+ */
+ //================================================================================
+
+ bool findSubShapeAssociationByPiercing( const TopoDS_Face& theTgtFace,
+ SMESH_Mesh * /*theTgtMesh*/,
+ const TopoDS_Shape& theSrcShape,
+ SMESH_Mesh* theSrcMesh,
+ TAssocTool::TShapeShapeMap& theShape2ShapeMap,
+ Handle(Geom_Line) & thePiercingLine )
+ {
+ list< TopoDS_Edge > tgtEdges, srcEdges;
+ list< int > tgtNbEW, srcNbEW;
+ int tgtNbW = SMESH_Block::GetOrderedEdges( TopoDS::Face( theTgtFace ), tgtEdges, tgtNbEW );
+
+ TopTools_IndexedMapOfShape tgtVV, srcVV;
+ for ( const TopoDS_Edge& tgtEdge : tgtEdges )
+ tgtVV.Add( SMESH_MesherHelper::IthVertex( 0, tgtEdge ));
+ // if ( tgtVV.Size() < 2 )
+ // return false;
+
+ const int nbVV = tgtVV.Size();
+ const gp_Pnt tgtP0 = BRep_Tool::Pnt( TopoDS::Vertex( tgtVV( 1 )));
+ double minVertexDist = Precision::Infinite(), assocTol;
+ gp_Lin piercingLine;
+ TopoDS_Face assocSrcFace;
+ double tol;
+
+ for ( TopExp_Explorer faceExp( theSrcShape, TopAbs_FACE ); faceExp.More(); faceExp.Next())
+ {
+ const TopoDS_Face& srcFace = TopoDS::Face( faceExp.Current() );
+
+ int srcNbW = SMESH_Block::GetOrderedEdges( srcFace, srcEdges, srcNbEW );
+ if ( tgtNbW != srcNbW )
+ continue;
+
+ srcVV.Clear( false );
+ for ( const TopoDS_Edge& srcEdge : srcEdges )
+ srcVV.Add( SMESH_MesherHelper::IthVertex( 0, srcEdge ));
+ if ( srcVV.Extent() != tgtVV.Extent() )
+ continue;
+
+ // make srcFace computed
+ SMESH_subMesh* srcFaceSM = theSrcMesh->GetSubMesh( srcFace );
+ if ( !TAssocTool::MakeComputed( srcFaceSM ))
+ continue;
+
+ // compute tolerance
+ double sumLen = 0, nbEdges = 0;
+ for ( const TopoDS_Edge& srcEdge : srcEdges )
+ {
+ SMESH_subMesh* srcSM = theSrcMesh->GetSubMesh( srcEdge );
+ if ( !srcSM->GetSubMeshDS() )
+ continue;
+ SMDS_ElemIteratorPtr edgeIt = srcSM->GetSubMeshDS()->GetElements();
+ while ( edgeIt->more() )
+ {
+ const SMDS_MeshElement* edge = edgeIt->next();
+ sumLen += SMESH_NodeXYZ( edge->GetNode( 0 )).Distance( edge->GetNode( 1 ));
+ nbEdges += 1;
+ }
+ }
+ if ( nbEdges == 0 )
+ continue;
+
+ tol = 0.1 * sumLen / nbEdges;
+
+ // try to find corresponding VERTEXes
+
+ gp_Lin line;
+ double vertexDist;
+ for ( int iSrcV0 = 1; iSrcV0 <= srcVV.Size(); ++iSrcV0 )
+ {
+ const gp_Pnt srcP0 = BRep_Tool::Pnt( TopoDS::Vertex( srcVV( iSrcV0 )));
+ try {
+ line.SetDirection( gp_Vec( srcP0, tgtP0 ));
+ }
+ catch (...) {
+ continue;
+ }
+ bool correspond;
+ for ( int iDir : { -1, 1 }) // move connected VERTEX forward and backward
+ {
+ correspond = true;
+ vertexDist = 0;
+ int iTgtV = 0, iSrcV = iSrcV0 - 1;
+ for ( int i = 1; i < tgtVV.Size() && correspond; ++i )
+ {
+ iTgtV = ( iTgtV + 1 ) % nbVV;
+ iSrcV = ( iSrcV + iDir + nbVV ) % nbVV;
+ gp_Pnt tgtP = BRep_Tool::Pnt( TopoDS::Vertex( tgtVV( iTgtV + 1 )));
+ gp_Pnt srcP = BRep_Tool::Pnt( TopoDS::Vertex( srcVV( iSrcV + 1 )));
+ line.SetLocation( tgtP );
+ correspond = ( line.SquareDistance( srcP ) < tol * tol );
+ vertexDist += tgtP.SquareDistance( srcP );
+ }
+ if ( correspond )
+ break;
+ }
+ if ( correspond )
+ {
+ if ( vertexDist < minVertexDist )
+ {
+ minVertexDist = vertexDist;
+ piercingLine = line;
+ assocSrcFace = srcFace;
+ assocTol = tol;
+ }
+ break;
+ }
+ }
+ continue;
+
+ } // loop on src FACEs
+
+ if ( Precision::IsInfinite( minVertexDist ))
+ return false; // no correspondence found
+
+ thePiercingLine = new Geom_Line( piercingLine );
+
+ // fill theShape2ShapeMap
+
+ TAssocTool::InsertAssociation( theTgtFace, assocSrcFace, theShape2ShapeMap );
+
+ for ( const TopoDS_Shape& tgtV : tgtVV ) // fill theShape2ShapeMap with VERTEXes
+ {
+ gp_Pnt tgtP = BRep_Tool::Pnt( TopoDS::Vertex( tgtV ));
+ piercingLine.SetLocation( tgtP );
+ bool found = false;
+ for ( const TopoDS_Shape& srcV : srcVV )
+ {
+ gp_Pnt srcP = BRep_Tool::Pnt( TopoDS::Vertex( srcV ));
+ if ( piercingLine.SquareDistance( srcP ) < assocTol * assocTol )
+ {
+ TAssocTool::InsertAssociation( tgtV, srcV, theShape2ShapeMap );
+ found = true;
+ break;
+ }
+ }
+ if ( !found )
+ return false;
+ }
+
+ TopoDS_Vertex vvT[2], vvS[2], vvMapped[2];
+ for ( const TopoDS_Edge& tgtEdge : tgtEdges ) // fill theShape2ShapeMap with EDGEs
+ {
+ if ( SMESH_Algo::isDegenerated( tgtEdge ))
+ continue;
+
+ TopExp::Vertices( tgtEdge, vvT[0], vvT[1], true );
+ if ( !theShape2ShapeMap.IsBound( vvT[0] ) ||
+ !theShape2ShapeMap.IsBound( vvT[1] ))
+ return false;
+
+ vvMapped[0] = TopoDS::Vertex( theShape2ShapeMap( vvT[0] ));
+ vvMapped[1] = TopoDS::Vertex( theShape2ShapeMap( vvT[1] ));
+
+ bool found = false;
+ for ( TopExp_Explorer eExp( assocSrcFace, TopAbs_EDGE ); eExp.More(); eExp.Next())
+ {
+ TopoDS_Edge srcEdge = TopoDS::Edge( eExp.Current() );
+ TopExp::Vertices( srcEdge, vvS[0], vvS[1], true );
+ found = (( vvMapped[0].IsSame( vvS[0] ) && vvMapped[1].IsSame( vvS[1] )) ||
+ ( vvMapped[0].IsSame( vvS[1] ) && vvMapped[1].IsSame( vvS[0] )));
+
+ if ( found && nbVV < 3 )
+ {
+ BRepAdaptor_Curve tgtCurve( tgtEdge );
+ gp_Pnt tgtP = tgtCurve.Value( 0.5 * ( tgtCurve.FirstParameter() +
+ tgtCurve.LastParameter() ));
+ thePiercingLine->SetLocation( tgtP );
+
+ double f,l;
+ Handle(Geom_Curve) srcCurve = BRep_Tool::Curve( srcEdge, f,l );
+ if ( srcCurve.IsNull() )
+ {
+ found = false;
+ continue;
+ }
+ GeomAPI_ExtremaCurveCurve extrema( thePiercingLine, srcCurve );
+ if ( !extrema.Extrema().IsDone() ||
+ extrema.Extrema().IsParallel() ||
+ extrema.NbExtrema() == 0 ||
+ extrema.LowerDistance() > tol )
+ found = false;
+ }
+ if ( found )
+ {
+ if ( !vvMapped[0].IsSame( vvS[0] ))
+ srcEdge.Reverse();
+ TAssocTool::InsertAssociation( tgtEdge, srcEdge, theShape2ShapeMap );
+ break;
+ }
+ }
+ if ( !found )
+ return false;
+ }
+
+ return true;
+
+ } // findSubShapeAssociationByPiercing()
+
+ //================================================================================
+ /*!
+ * \brief Project by piercing theTgtFace by lines parallel to thePiercingLine
+ */
+ //================================================================================
+
+ bool projectByPiercing(Handle(Geom_Line) thePiercingLine,
+ const TopoDS_Face& theTgtFace,
+ const TopoDS_Face& theSrcFace,
+ const TSideVector& theTgtWires,
+ const TSideVector& theSrcWires,
+ const TAssocTool::TShapeShapeMap& theShape2ShapeMap,
+ TAssocTool::TNodeNodeMap& theSrc2tgtNodes,
+ const bool theIs1DComputed)
+ {
+ SMESH_Mesh * tgtMesh = theTgtWires[0]->GetMesh();
+ SMESH_Mesh * srcMesh = theSrcWires[0]->GetMesh();
+
+ if ( thePiercingLine.IsNull() )
+ {
+ // try to set thePiercingLine by VERTEX association of theShape2ShapeMap
+
+ const double tol = 0.1 * theSrcWires[0]->Length() / theSrcWires[0]->NbSegments();
+
+ for ( TopExp_Explorer vExp( theTgtFace, TopAbs_VERTEX ); vExp.More(); vExp.Next() )
+ {
+ const TopoDS_Vertex & tgtV = TopoDS::Vertex( vExp.Current() );
+ const TopoDS_Vertex & srcV = TopoDS::Vertex( theShape2ShapeMap( tgtV ));
+ gp_Pnt tgtP = BRep_Tool::Pnt( tgtV );
+ gp_Pnt srcP = BRep_Tool::Pnt( srcV );
+ if ( thePiercingLine.IsNull() ) // set thePiercingLine
+ {
+ gp_Lin line;
+ try {
+ line.SetDirection( gp_Vec( srcP, tgtP ));
+ line.SetLocation( tgtP );
+ thePiercingLine = new Geom_Line( line );
+ }
+ catch ( ... )
+ {
+ continue;
+ }
+ }
+ else // check thePiercingLine
+ {
+ thePiercingLine->SetLocation( tgtP );
+ if ( thePiercingLine->Lin().SquareDistance( srcP ) > tol * tol )
+ return false;
+ }
+ }
+
+ for ( TopExp_Explorer eExp( theTgtFace, TopAbs_EDGE ); eExp.More(); eExp.Next() )
+ {
+ BRepAdaptor_Curve tgtCurve( TopoDS::Edge( eExp.Current() ));
+ gp_Pnt tgtP = tgtCurve.Value( 0.5 * ( tgtCurve.FirstParameter() +
+ tgtCurve.LastParameter() ));
+ thePiercingLine->SetLocation( tgtP );
+
+ double f,l;
+ TopoDS_Edge srcEdge = TopoDS::Edge( theShape2ShapeMap( eExp.Current() ));
+ Handle(Geom_Curve) srcCurve = BRep_Tool::Curve( srcEdge, f,l );
+ if ( srcCurve.IsNull() )
+ continue;
+ GeomAPI_ExtremaCurveCurve extrema( thePiercingLine, srcCurve,
+ -Precision::Infinite(), Precision::Infinite(), f, l );
+ if ( !extrema.Extrema().IsDone() ||
+ extrema.Extrema().IsParallel() ||
+ extrema.NbExtrema() == 0 ||
+ extrema.LowerDistance() > tol )
+ return false;
+ }
+ } // if ( thePiercingLine.IsNull() )
+
+ SMESHDS_SubMesh* srcSubDS = srcMesh->GetMeshDS()->MeshElements( theSrcFace );
+
+ SMESH_MesherHelper* helper = theTgtWires[0]->FaceHelper();
+ if ( theIs1DComputed )
+ helper->IsQuadraticSubMesh( theTgtFace );
+ else
+ helper->SetIsQuadratic( srcSubDS->GetElements()->next()->IsQuadratic() );
+ helper->SetElementsOnShape( true );
+ SMESHDS_Mesh* tgtMeshDS = tgtMesh->GetMeshDS();
+
+ Handle(Geom_Surface) tgtSurface = BRep_Tool::Surface( theTgtFace );
+#if OCC_VERSION_LARGE < 0x07070000
+ Handle(GeomAdaptor_HSurface) tgtSurfAdaptor = new GeomAdaptor_HSurface( tgtSurface );
+ Handle(GeomAdaptor_HCurve) piercingCurve = new GeomAdaptor_HCurve( thePiercingLine );
+#else
+ Handle(GeomAdaptor_Surface) tgtSurfAdaptor = new GeomAdaptor_Surface( tgtSurface );
+ Handle(GeomAdaptor_Curve) piercingCurve = new GeomAdaptor_Curve( thePiercingLine );
+#endif
+ IntCurveSurface_HInter intersect;
+
+ SMESH_MesherHelper* srcHelper = theSrcWires[0]->FaceHelper();
+
+ const SMDS_MeshNode* nullNode = 0;
+ TAssocTool::TNodeNodeMap::iterator srcN_tgtN;
+ vector< const SMDS_MeshNode* > tgtNodes;
+
+ SMDS_ElemIteratorPtr elemIt = srcSubDS->GetElements();
+ while ( elemIt->more() ) // loop on all mesh faces on srcFace
+ {
+ const SMDS_MeshElement* elem = elemIt->next();
+ const int nbN = elem->NbCornerNodes();
+ tgtNodes.resize( nbN );
+ for ( int i = 0; i < nbN; ++i ) // loop on nodes of the source element
+ {
+ const SMDS_MeshNode* srcNode = elem->GetNode(i);
+ srcN_tgtN = theSrc2tgtNodes.insert( make_pair( srcNode, nullNode )).first;
+ if ( srcN_tgtN->second == nullNode )
+ {
+ // create a new node
+ thePiercingLine->SetLocation( SMESH_NodeXYZ( srcNode ));
+ intersect.Perform( piercingCurve, tgtSurfAdaptor );
+ bool pierced = ( intersect.IsDone() && intersect.NbPoints() > 0 );
+ double U, V;
+ const SMDS_MeshNode* n = nullNode;
+ if ( pierced )
+ {
+ double W, minW = Precision::Infinite();
+ gp_Pnt tgtP;
+ for ( int iInt = 1; iInt <= intersect.NbPoints(); ++iInt )
+ {
+ W = intersect.Point( iInt ).W();
+ if ( 0 < W && W < minW )
+ {
+ U = intersect.Point( iInt ).U();
+ V = intersect.Point( iInt ).V();
+ tgtP = intersect.Point( iInt ).Pnt();
+ minW = W;
+ }
+ }
+ n = tgtMeshDS->AddNode( tgtP.X(), tgtP.Y(), tgtP.Z() );
+ }
+
+ SMDS_TypeOfPosition shapeType = srcNode->GetPosition()->GetTypeOfPosition();
+ TopoDS_Shape srcShape;
+ if ( shapeType != SMDS_TOP_FACE )
+ {
+ srcShape = srcHelper->GetSubShapeByNode( srcNode, srcHelper->GetMeshDS() );
+ if ( !theShape2ShapeMap.IsBound( srcShape, /*isSrc=*/true ))
+ {
+ if ( n ) // INTERNAL shape w/o corresponding target shape (3D_mesh_Extrusion_02/E0)
+ shapeType = SMDS_TOP_FACE;
+ else
+ return false;
+ }
+ }
+
+ switch ( shapeType )
+ {
+ case SMDS_TOP_FACE: {
+ if ( !n )
+ return false;
+ tgtMeshDS->SetNodeOnFace( n, helper->GetSubShapeID(), U, V );
+ break;
+ }
+ case SMDS_TOP_EDGE: {
+ TopoDS_Edge tgtEdge = TopoDS::Edge( theShape2ShapeMap( srcShape, /*isSrc=*/true ));
+ if ( n )
+ {
+ U = Precision::Infinite();
+ helper->CheckNodeU( tgtEdge, n, U, Precision::PConfusion());
+ }
+ else
+ {
+ Handle(Geom_Curve) tgtCurve = BRep_Tool::Curve( tgtEdge, U,V );
+ if ( tgtCurve.IsNull() )
+ return false;
+ GeomAPI_ExtremaCurveCurve extrema( thePiercingLine, tgtCurve );
+ if ( !extrema.Extrema().IsDone() ||
+ extrema.Extrema().IsParallel() ||
+ extrema.NbExtrema() == 0 )
+ return false;
+ gp_Pnt pOnLine, pOnEdge;
+ extrema.NearestPoints( pOnLine, pOnEdge );
+ extrema.LowerDistanceParameters( V, U );
+ n = tgtMeshDS->AddNode( pOnEdge.X(), pOnEdge.Y(), pOnEdge.Z() );
+ }
+ tgtMeshDS->SetNodeOnEdge( n, tgtEdge, U );
+ break;
+ }
+ case SMDS_TOP_VERTEX: {
+ TopoDS_Shape tgtV = theShape2ShapeMap( srcShape, /*isSrc=*/true );
+ if ( !n )
+ {
+ gp_Pnt tgtP = BRep_Tool::Pnt( TopoDS::Vertex( tgtV ));
+ n = tgtMeshDS->AddNode( tgtP.X(), tgtP.Y(), tgtP.Z() );
+ }
+ tgtMeshDS->SetNodeOnVertex( n, TopoDS::Vertex( tgtV ));
+ break;
+ }
+ default:;
+ }
+ srcN_tgtN->second = n;
+ }
+ tgtNodes[i] = srcN_tgtN->second;
+ }
+ // create a new face (with reversed orientation)
+ switch ( nbN )
+ {
+ case 3: helper->AddFace(tgtNodes[0], tgtNodes[2], tgtNodes[1]); break;
+ case 4: helper->AddFace(tgtNodes[0], tgtNodes[3], tgtNodes[2], tgtNodes[1]); break;
+ }
+ } // loop on all mesh faces on srcFace
+
+ return true;
+
+ } // projectByPiercing()
+
+
+
} // namespace
TAssocTool::InitVertexAssociation( _sourceHypo, shape2ShapeMap );
if ( shape2ShapeMap.IsEmpty() )
initAssoc4Quad2Closed( tgtFace, helper, srcShape, srcMesh, shape2ShapeMap );
+
+ Handle(Geom_Line) piercingLine;
+ bool piercingTried = false;
+
if ( !TAssocTool::FindSubShapeAssociation( tgtFace, tgtMesh, srcShape, srcMesh,
shape2ShapeMap) ||
!shape2ShapeMap.IsBound( tgtFace ))
{
- if ( srcShape.ShapeType() == TopAbs_FACE )
+ piercingTried = true;
+ if ( !findSubShapeAssociationByPiercing( tgtFace, tgtMesh, srcShape, srcMesh,
+ shape2ShapeMap, piercingLine ))
{
- int nbE1 = helper.Count( tgtFace, TopAbs_EDGE, /*ignoreSame=*/true );
- int nbE2 = helper.Count( srcShape, TopAbs_EDGE, /*ignoreSame=*/true );
- if ( nbE1 != nbE2 )
- return error(COMPERR_BAD_SHAPE,
- SMESH_Comment("Different number of edges in source and target faces: ")
- << nbE2 << " and " << nbE1 );
+ if ( srcShape.ShapeType() == TopAbs_FACE )
+ {
+ int nbE1 = helper.Count( tgtFace, TopAbs_EDGE, /*ignoreSame=*/true );
+ int nbE2 = helper.Count( srcShape, TopAbs_EDGE, /*ignoreSame=*/true );
+ if ( nbE1 != nbE2 )
+ return error(COMPERR_BAD_SHAPE,
+ SMESH_Comment("Different number of edges in source and target faces: ")
+ << nbE2 << " and " << nbE1 );
+ }
+ return error(COMPERR_BAD_SHAPE,"Topology of source and target faces seems different" );
}
- return error(COMPERR_BAD_SHAPE,"Topology of source and target faces seems different" );
}
TopoDS_Face srcFace = TopoDS::Face( shape2ShapeMap( tgtFace ).Oriented(TopAbs_FORWARD));
- // orient faces
- // if ( srcMesh == tgtMesh )
- // {
- // TopoDS_Shape solid =
- // helper.GetCommonAncestor( srcFace, tgtFace, *tgtMesh, TopAbs_SOLID );
- // if ( !solid.IsNull() )
- // {
- // srcFace.Orientation( helper.GetSubShapeOri( solid, srcFace ));
- // tgtFace.Orientation( helper.GetSubShapeOri( solid, tgtFace ));
- // }
- // else if ( helper.NbAncestors( srcFace, *tgtMesh, TopAbs_SOLID ) == 1 &&
- // helper.NbAncestors( tgtFace, *tgtMesh, TopAbs_SOLID ) == 1 )
- // {
- // srcFace.Orientation( helper.GetSubShapeOri( tgtMesh->GetShapeToMesh(), srcFace ));
- // tgtFace.Orientation( helper.GetSubShapeOri( tgtMesh->GetShapeToMesh(), tgtFace ));
- // }
- // }
// ----------------------------------------------
// Assure that mesh on a source Face is computed
// ----------------------------------------------
// get ordered src and tgt EDGEs
TSideVector srcWires, tgtWires;
bool is1DComputed = false; // if any tgt EDGE is meshed
- TError err = getWires( tgtFace, srcFace, tgtMesh, srcMesh,
+ TError err = getWires( tgtFace, srcFace, tgtMesh, srcMesh, &helper,
shape2ShapeMap, srcWires, tgtWires, _src2tgtNodes, is1DComputed );
if ( err && !err->IsOK() )
return error( err );
bool projDone = false;
+ if ( !projDone && !piercingLine.IsNull() )
+ {
+ // project by piercing tgtFace by lines parallel to piercingLine
+ projDone = projectByPiercing( piercingLine, tgtFace, srcFace, tgtWires, srcWires,
+ shape2ShapeMap, _src2tgtNodes, is1DComputed );
+ piercingTried = true;
+ }
if ( !projDone )
{
// try to project from the same face with different location
if ( !projDone )
{
// projection in case of quadrilateral faces
- // projDone = projectQuads( tgtFace, srcFace, tgtWires, srcWires,
- // shape2ShapeMap, _src2tgtNodes, is1DComputed);
+ projDone = projectQuads( tgtFace, srcFace, tgtWires, srcWires,
+ shape2ShapeMap, _src2tgtNodes, is1DComputed);
+ }
+ if ( !projDone && !piercingTried )
+ {
+ // project by piercing tgtFace by lines parallel to piercingLine
+ projDone = projectByPiercing( piercingLine, tgtFace, srcFace, tgtWires, srcWires,
+ shape2ShapeMap, _src2tgtNodes, is1DComputed );
}
// it will remove mesh built on edges and vertices in failure case
{
_src2tgtNodes.clear();
// --------------------
- // Prepare to mapping
+ // Prepare to mapping
// --------------------
// Check if node projection to a face is needed
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
// compare nb nodes on srcEdge1 and srcEdge2
if ( srcEdge2 != srcEdges.end() )
{
- int nbN1 = 0, nbN2 = 0;
+ smIdType nbN1 = 0, nbN2 = 0;
if ( SMESHDS_SubMesh* sm = srcMesh->GetMeshDS()->MeshElements( srcEdge1 ))
nbN1 = sm->NbNodes();
if ( SMESHDS_SubMesh* sm = srcMesh->GetMeshDS()->MeshElements( *srcEdge2 ))
// Load pattern from the source face
SMESH_Pattern mapper;
- mapper.Load( srcMesh, srcFace, toProjectNodes, srcV1 );
+ mapper.Load( srcMesh, srcFace, toProjectNodes, srcV1, /*keepNodes=*/true );
if ( mapper.GetErrorCode() != SMESH_Pattern::ERR_OK )
return error(COMPERR_BAD_INPUT_MESH,"Can't load mesh pattern from the source face");
if ( mapper.GetErrorCode() != SMESH_Pattern::ERR_OK )
return error("Can't make mesh by source mesh pattern");
+ // fill _src2tgtNodes
+ std::vector< const SMDS_MeshNode* > *srcNodes, *tgtNodes;
+ mapper.GetInOutNodes( srcNodes, tgtNodes );
+ size_t nbN = std::min( srcNodes->size(), tgtNodes->size() );
+ for ( size_t i = 0; i < nbN; ++i )
+ if ( (*srcNodes)[i] && (*tgtNodes)[i] )
+ _src2tgtNodes.insert( make_pair( (*srcNodes)[i], (*tgtNodes)[i] ));
+
+
} // end of projection using Pattern mapping
{
// 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 ( u2nodesMaps[ NEW_NODES ].size() > 0 &&
u2nodesMaps[ OLD_NODES ].size() > 0 )
{
- u_oldNode = u2nodesMaps[ OLD_NODES ].begin();
+ u_oldNode = u2nodesMaps[ OLD_NODES ].begin();
newEnd = u2nodesMaps[ OLD_NODES ].end();
for ( ; u_oldNode != newEnd; ++u_oldNode )
SMESH_Algo::addBadInputElement( u_oldNode->second );
// Make groups of nodes to merge
- u_oldNode = u2nodesMaps[ OLD_NODES ].begin();
+ u_oldNode = u2nodesMaps[ OLD_NODES ].begin();
u_newNode = u2nodesMaps[ NEW_NODES ].begin();
newEnd = u2nodesMaps[ NEW_NODES ].end();
u_newOnSeam = u2nodesOnSeam.begin();
// Merge
SMESH_MeshEditor editor( tgtMesh );
- int nbFaceBeforeMerge = tgtSubMesh->GetSubMeshDS()->NbElements();
+ smIdType nbFaceBeforeMerge = tgtSubMesh->GetSubMeshDS()->NbElements();
editor.MergeNodes( groupsOfNodes );
- int nbFaceAtferMerge = tgtSubMesh->GetSubMeshDS()->NbElements();
+ smIdType nbFaceAtferMerge = tgtSubMesh->GetSubMeshDS()->NbElements();
if ( nbFaceBeforeMerge != nbFaceAtferMerge && !helper.HasDegeneratedEdges() )
return error(COMPERR_BAD_INPUT_MESH, "Probably invalid node parameters on geom faces");
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 ( !fixDistortedFaces( helper, tgtWires ))
- return error("Invalid mesh generated");
-
+ if ( helper.IsDistorted2D( tgtSubMesh, /*checkUV=*/false, &helper ))
+ {
+ TAssocTool::Morph morph( srcWires );
+ morph.Perform( helper, tgtWires, helper.GetSurface( tgtFace ),
+ _src2tgtNodes, /*moveAll=*/true );
+ if(SALOME::VerbosityActivated())
+ cout << "StdMeshers_Projection_2D: Projection mesh IsDistorted2D() ==> do morph" << endl;
+
+ if ( !fixDistortedFaces( helper, tgtWires )) // smooth and check
+ return error("Invalid mesh generated");
+ }
// ---------------------------
// Check elements orientation
// ---------------------------
//=======================================================================
//function : Evaluate
-//purpose :
+//purpose :
//=======================================================================
bool StdMeshers_Projection_2D::Evaluate(SMESH_Mesh& theMesh,
// Assure that mesh on a source Face is computed/evaluated
// -------------------------------------------------------
- std::vector<int> aVec;
+ std::vector<smIdType> aVec;
SMESH_subMesh* srcSubMesh = srcMesh->GetSubMesh( srcFace );
if ( srcSubMesh->IsMeshComputed() )
