-// SMESH SMESH : implementaion of SMESH idl descriptions
+// Copyright (C) 2007-2014 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
//
-// Copyright (C) 2003 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
-// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
-//
-// This library is free software; you can redistribute it and/or
-// modify it under the terms of the GNU Lesser General Public
-// License as published by the Free Software Foundation; either
-// version 2.1 of the License.
-//
-// This library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-// Lesser General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public
-// License along with this library; if not, write to the Free Software
-// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-//
-// See http://www.opencascade.org/SALOME/ or email : webmaster.salome@opencascade.org
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// Lesser General Public License for more details.
//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+//
+
+// SMESH SMESH : implementaion of SMESH idl descriptions
// File : StdMeshers_MEFISTO_2D.cxx
// Moved here from SMESH_MEFISTO_2D.cxx
// Author : Paul RASCLE, EDF
// Module : SMESH
-// $Header$
-
-using namespace std;
+//
#include "StdMeshers_MEFISTO_2D.hxx"
+
+#include "SMDS_EdgePosition.hxx"
+#include "SMDS_MeshElement.hxx"
+#include "SMDS_MeshNode.hxx"
+#include "SMESH_Comment.hxx"
#include "SMESH_Gen.hxx"
#include "SMESH_Mesh.hxx"
+#include "SMESH_MesherHelper.hxx"
#include "SMESH_subMesh.hxx"
-
-#include "StdMeshers_MaxElementArea.hxx"
+#include "StdMeshers_FaceSide.hxx"
#include "StdMeshers_LengthFromEdges.hxx"
+#include "StdMeshers_MaxElementArea.hxx"
+#include "StdMeshers_ViscousLayers2D.hxx"
+
+#include "utilities.h"
#include "Rn.h"
#include "aptrte.h"
-#include "SMDS_MeshElement.hxx"
-#include "SMDS_MeshNode.hxx"
-#include "SMDS_EdgePosition.hxx"
-#include "SMDS_FacePosition.hxx"
-
-#include "utilities.h"
-
-#include <TopoDS_Face.hxx>
-#include <TopoDS_Edge.hxx>
-#include <TopoDS_Shape.hxx>
-#include <Geom_Surface.hxx>
-#include <GeomAdaptor_Curve.hxx>
-#include <Geom2d_Curve.hxx>
-#include <gp_Pnt2d.hxx>
-#include <BRep_Tool.hxx>
+#include <BRepGProp.hxx>
#include <BRepTools.hxx>
-#include <BRepTools_WireExplorer.hxx>
-#include <GCPnts_AbscissaPoint.hxx>
-#include <GCPnts_UniformAbscissa.hxx>
-#include <TColStd_ListIteratorOfListOfInteger.hxx>
+#include <BRep_Tool.hxx>
+#include <GProp_GProps.hxx>
+#include <Geom2d_Curve.hxx>
+#include <Geom_Curve.hxx>
+#include <Geom_Surface.hxx>
+#include <Precision.hxx>
+#include <TopExp.hxx>
+#include <TopExp_Explorer.hxx>
#include <TopTools_ListIteratorOfListOfShape.hxx>
#include <TopTools_ListOfShape.hxx>
+#include <TopTools_MapOfShape.hxx>
+#include <TopoDS.hxx>
+#include <TopoDS_Edge.hxx>
+#include <TopoDS_Face.hxx>
+#include <TopoDS_Iterator.hxx>
+#include <TopoDS_Wire.hxx>
+#include <gp_Pnt2d.hxx>
+
+using namespace std;
+
+#ifdef _DEBUG_
+//#define DUMP_POINTS // to print coordinates of MEFISTO input
+#endif
//=============================================================================
/*!
*/
//=============================================================================
-StdMeshers_MEFISTO_2D::StdMeshers_MEFISTO_2D(int hypId, int studyId,
- SMESH_Gen * gen):SMESH_2D_Algo(hypId, studyId, gen)
+StdMeshers_MEFISTO_2D::StdMeshers_MEFISTO_2D(int hypId, int studyId, SMESH_Gen * gen):
+ SMESH_2D_Algo(hypId, studyId, gen)
{
MESSAGE("StdMeshers_MEFISTO_2D::StdMeshers_MEFISTO_2D");
_name = "MEFISTO_2D";
_shapeType = (1 << TopAbs_FACE);
_compatibleHypothesis.push_back("MaxElementArea");
_compatibleHypothesis.push_back("LengthFromEdges");
+ _compatibleHypothesis.push_back("ViscousLayers2D");
_edgeLength = 0;
_maxElementArea = 0;
_hypMaxElementArea = NULL;
_hypLengthFromEdges = NULL;
- myTool = 0;
+ _helper = 0;
}
//=============================================================================
//=============================================================================
bool StdMeshers_MEFISTO_2D::CheckHypothesis
- (SMESH_Mesh& aMesh,
- const TopoDS_Shape& aShape,
+ (SMESH_Mesh& aMesh,
+ const TopoDS_Shape& aShape,
SMESH_Hypothesis::Hypothesis_Status& aStatus)
{
- //MESSAGE("StdMeshers_MEFISTO_2D::CheckHypothesis");
+ _hypMaxElementArea = NULL;
+ _hypLengthFromEdges = NULL;
+ _edgeLength = 0;
+ _maxElementArea = 0;
- _hypMaxElementArea = NULL;
- _hypLengthFromEdges = NULL;
+ list <const SMESHDS_Hypothesis * >::const_iterator itl;
+ const SMESHDS_Hypothesis *theHyp;
- list <const SMESHDS_Hypothesis * >::const_iterator itl;
- const SMESHDS_Hypothesis *theHyp;
+ const list <const SMESHDS_Hypothesis * >&hyps = GetUsedHypothesis(aMesh, aShape);
+ int nbHyp = hyps.size();
+ if (!nbHyp)
+ {
+ aStatus = SMESH_Hypothesis::HYP_OK; //SMESH_Hypothesis::HYP_MISSING;
+ return true; // (PAL13464) can work with no hypothesis, LengthFromEdges is default one
+ }
- const list <const SMESHDS_Hypothesis * >&hyps = GetUsedHypothesis(aMesh, aShape);
- int nbHyp = hyps.size();
- if (!nbHyp)
- {
- aStatus = SMESH_Hypothesis::HYP_MISSING;
- return false; // can't work with no hypothesis
- }
+ itl = hyps.begin();
+ theHyp = (*itl); // use only the first hypothesis
+
+ string hypName = theHyp->GetName();
+
+ bool isOk = false;
- itl = hyps.begin();
- theHyp = (*itl); // use only the first hypothesis
-
- string hypName = theHyp->GetName();
- //int hypId = theHyp->GetID();
- //SCRUTE(hypName);
-
- bool isOk = false;
-
- if (hypName == "MaxElementArea")
- {
- _hypMaxElementArea = static_cast<const StdMeshers_MaxElementArea *>(theHyp);
- ASSERT(_hypMaxElementArea);
- _maxElementArea = _hypMaxElementArea->GetMaxArea();
- _edgeLength = 0;
- isOk = true;
- aStatus = SMESH_Hypothesis::HYP_OK;
- }
-
- else if (hypName == "LengthFromEdges")
- {
- _hypLengthFromEdges = static_cast<const StdMeshers_LengthFromEdges *>(theHyp);
- ASSERT(_hypLengthFromEdges);
- _edgeLength = 0;
- _maxElementArea = 0;
- isOk = true;
- aStatus = SMESH_Hypothesis::HYP_OK;
- }
- else
- aStatus = SMESH_Hypothesis::HYP_INCOMPATIBLE;
-
- if (isOk)
- {
- isOk = false;
- if (_maxElementArea > 0)
- {
-// _edgeLength = 2 * sqrt(_maxElementArea); // triangles : minorant
- _edgeLength = 2 * sqrt(_maxElementArea/sqrt(3.0));
- isOk = true;
- }
- else
- isOk = (_hypLengthFromEdges != NULL); // **** check mode
- if (!isOk)
- aStatus = SMESH_Hypothesis::HYP_BAD_PARAMETER;
- }
-
- //SCRUTE(_edgeLength);
- //SCRUTE(_maxElementArea);
- return isOk;
+ if (hypName == "MaxElementArea")
+ {
+ _hypMaxElementArea = static_cast<const StdMeshers_MaxElementArea *>(theHyp);
+ ASSERT(_hypMaxElementArea);
+ _maxElementArea = _hypMaxElementArea->GetMaxArea();
+ isOk = true;
+ aStatus = SMESH_Hypothesis::HYP_OK;
+ }
+
+ else if (hypName == "LengthFromEdges")
+ {
+ _hypLengthFromEdges = static_cast<const StdMeshers_LengthFromEdges *>(theHyp);
+ ASSERT(_hypLengthFromEdges);
+ isOk = true;
+ aStatus = SMESH_Hypothesis::HYP_OK;
+ }
+ else
+ aStatus = SMESH_Hypothesis::HYP_INCOMPATIBLE;
+
+ if (isOk)
+ {
+ isOk = false;
+ if (_maxElementArea > 0)
+ {
+ //_edgeLength = 2 * sqrt(_maxElementArea); // triangles : minorant
+ _edgeLength = sqrt(2. * _maxElementArea/sqrt(3.0));
+ isOk = true;
+ }
+ else
+ isOk = (_hypLengthFromEdges != NULL); // **** check mode
+ if (!isOk)
+ aStatus = SMESH_Hypothesis::HYP_BAD_PARAMETER;
+ }
+
+ return isOk;
}
//=============================================================================
{
MESSAGE("StdMeshers_MEFISTO_2D::Compute");
- if (_hypLengthFromEdges)
- _edgeLength = ComputeEdgeElementLength(aMesh, aShape);
-
- bool isOk = false;
- //const SMESHDS_Mesh * meshDS = aMesh.GetMeshDS();
- //SMESH_subMesh *theSubMesh = aMesh.GetSubMesh(aShape);
+ TopoDS_Face F = TopoDS::Face(aShape.Oriented(TopAbs_FORWARD));
+
+ // helper builds quadratic mesh if necessary
+ SMESH_MesherHelper helper(aMesh);
+ _helper = &helper;
+ _quadraticMesh = _helper->IsQuadraticSubMesh(aShape);
+ const bool skipMediumNodes = _quadraticMesh;
+
+ // build viscous layers if required
+ SMESH_ProxyMesh::Ptr proxyMesh = StdMeshers_ViscousLayers2D::Compute( aMesh, F );
+ if ( !proxyMesh )
+ return false;
+
+ // get all edges of a face
+ TError problem;
+ TWireVector wires =
+ StdMeshers_FaceSide::GetFaceWires( F, aMesh, skipMediumNodes, problem, proxyMesh );
+ int nbWires = wires.size();
+ if ( problem && !problem->IsOK() ) return error( problem );
+ if ( nbWires == 0 ) return error( "Problem in StdMeshers_FaceSide::GetFaceWires()");
+ if ( wires[0]->NbSegments() < 3 ) // ex: a circle with 2 segments
+ return error(COMPERR_BAD_INPUT_MESH,
+ SMESH_Comment("Too few segments: ")<<wires[0]->NbSegments());
+
+ // compute average edge length
+ if (!_hypMaxElementArea)
+ {
+ _edgeLength = 0;
+ int nbSegments = 0;
+ for ( int iW = 0; iW < nbWires; ++iW )
+ {
+ StdMeshers_FaceSidePtr wire = wires[ iW ];
+ _edgeLength += wire->Length();
+ nbSegments += wire->NbSegments();
+ }
+ if ( nbSegments )
+ _edgeLength /= nbSegments;
+ }
- const TopoDS_Face & FF = TopoDS::Face(aShape);
- bool faceIsForward = (FF.Orientation() == TopAbs_FORWARD);
- TopoDS_Face F = TopoDS::Face(FF.Oriented(TopAbs_FORWARD));
+ if (/*_hypLengthFromEdges &&*/ _edgeLength < DBL_MIN )
+ _edgeLength = 100;
- Z nblf; //nombre de lignes fermees (enveloppe en tete)
- Z *nudslf = NULL; //numero du dernier sommet de chaque ligne fermee
- R2 *uvslf = NULL;
- Z nbpti = 0; //nombre points internes futurs sommets de la triangulation
+ Z nblf; //nombre de lignes fermees (enveloppe en tete)
+ Z *nudslf = NULL; //numero du dernier sommet de chaque ligne fermee
+ R2 *uvslf = NULL;
+ Z nbpti = 0; //nombre points internes futurs sommets de la triangulation
R2 *uvpti = NULL;
Z nbst;
Z *nust = NULL;
Z ierr = 0;
- Z nutysu = 1; // 1: il existe un fonction areteideale_()
- // Z nutysu=0; // 0: on utilise aretmx
- R aretmx = _edgeLength; // longueur max aretes future triangulation
+ Z nutysu = 1; // 1: il existe un fonction areteideale_()
+ // Z nutysu=0; // 0: on utilise aretmx
+ R aretmx = _edgeLength; // longueur max aretes future triangulation
+ if ( _hypMaxElementArea )
+ aretmx *= 1.5;
- nblf = NumberOfWires(F);
+ nblf = nbWires;
nudslf = new Z[1 + nblf];
nudslf[0] = 0;
int iw = 1;
int nbpnt = 0;
- myTool = new SMESH_MesherHelper(aMesh);
- _quadraticMesh = myTool->IsQuadraticSubMesh(aShape);
-
- if ( _quadraticMesh && _hypLengthFromEdges )
- aretmx *= 2.;
-
- myOuterWire = BRepTools::OuterWire(F);
- nbpnt += NumberOfPoints(aMesh, myOuterWire);
- if ( nbpnt < 3 ) { // ex: a circle with 2 segments
- delete myTool; myTool = 0;
- return false;
- }
- nudslf[iw++] = nbpnt;
-
- for (TopExp_Explorer exp(F, TopAbs_WIRE); exp.More(); exp.Next()) {
- const TopoDS_Wire & W = TopoDS::Wire(exp.Current());
- if (!myOuterWire.IsSame(W)) {
- nbpnt += NumberOfPoints(aMesh, W);
- nudslf[iw++] = nbpnt;
- }
+ // count nb of input points
+ for ( int iW = 0; iW < nbWires; ++iW )
+ {
+ nbpnt += wires[iW]->NbPoints() - 1;
+ nudslf[iw++] = nbpnt;
}
- // avoid passing same uv points for a vertex common to 2 wires
- TopTools_IndexedDataMapOfShapeListOfShape VWMap;
- if ( iw - 1 > 1 ) // nbofWires > 1
- TopExp::MapShapesAndAncestors( F , TopAbs_VERTEX, TopAbs_WIRE, VWMap );
-
uvslf = new R2[nudslf[nblf]];
- int m = 0;
double scalex, scaley;
ComputeScaleOnFace(aMesh, F, scalex, scaley);
- map<int, const SMDS_MeshNode*> mefistoToDS; // correspondence mefisto index--> points IDNodes
- if ( !LoadPoints(aMesh, F, myOuterWire, uvslf, m,
- mefistoToDS, scalex, scaley, VWMap) ) {
- delete myTool; myTool = 0;
- return false;
- }
+ // correspondence mefisto index --> Nodes
+ vector< const SMDS_MeshNode*> mefistoToDS(nbpnt, (const SMDS_MeshNode*)0);
- for (TopExp_Explorer exp(F, TopAbs_WIRE); exp.More(); exp.Next())
+ bool isOk = false;
+
+ // fill input points UV
+ if ( LoadPoints(wires, uvslf, mefistoToDS, scalex, scaley) )
{
- const TopoDS_Wire & W = TopoDS::Wire(exp.Current());
- if (!myOuterWire.IsSame(W))
+ // Compute
+ aptrte(nutysu, aretmx,
+ nblf, nudslf, uvslf, nbpti, uvpti, nbst, uvst, nbt, nust, ierr);
+
+ if (ierr == 0)
{
- if (! LoadPoints(aMesh, F, W, uvslf, m,
- mefistoToDS, scalex, scaley, VWMap )) {
- delete myTool; myTool = 0;
- return false;
- }
+ MESSAGE("... End Triangulation Generated Triangle Number " << nbt);
+ MESSAGE(" Node Number " << nbst);
+ StoreResult(nbst, uvst, nbt, nust, mefistoToDS, scalex, scaley);
+ isOk = true;
+ }
+ else
+ {
+ error(ierr,"Error in Triangulation (aptrte())");
}
}
+ if (nudslf != NULL) delete[]nudslf;
+ if (uvslf != NULL) delete[]uvslf;
+ if (uvst != NULL) delete[]uvst;
+ if (nust != NULL) delete[]nust;
- uvst = NULL;
- nust = NULL;
- aptrte(nutysu, aretmx,
- nblf, nudslf, uvslf, nbpti, uvpti, nbst, uvst, nbt, nust, ierr);
+ return isOk;
+}
- if (ierr == 0)
- {
- MESSAGE("... End Triangulation Generated Triangle Number " << nbt);
- MESSAGE(" Node Number " << nbst);
- StoreResult(aMesh, nbst, uvst, nbt, nust, F,
- faceIsForward, mefistoToDS, scalex, scaley);
- isOk = true;
+
+//=============================================================================
+/*!
+ *
+ */
+//=============================================================================
+
+bool StdMeshers_MEFISTO_2D::Evaluate(SMESH_Mesh & aMesh,
+ const TopoDS_Shape & aShape,
+ MapShapeNbElems& aResMap)
+{
+ MESSAGE("StdMeshers_MEFISTO_2D::Evaluate");
+
+ TopoDS_Face F = TopoDS::Face(aShape.Oriented(TopAbs_FORWARD));
+
+ double aLen = 0.0;
+ int NbSeg = 0;
+ bool IsQuadratic = false;
+ bool IsFirst = true;
+ TopExp_Explorer exp(F,TopAbs_EDGE);
+ for(; exp.More(); exp.Next()) {
+ TopoDS_Edge E = TopoDS::Edge(exp.Current());
+ MapShapeNbElemsItr anIt = aResMap.find( aMesh.GetSubMesh(E) );
+ if( anIt == aResMap.end() ) continue;
+ std::vector<int> aVec = (*anIt).second;
+ int nbe = Max(aVec[SMDSEntity_Edge],aVec[SMDSEntity_Quad_Edge]);
+ NbSeg += nbe;
+ if(IsFirst) {
+ IsQuadratic = ( aVec[SMDSEntity_Quad_Edge] > aVec[SMDSEntity_Edge] );
+ IsFirst = false;
+ }
+ double a,b;
+ TopLoc_Location L;
+ Handle(Geom_Curve) C = BRep_Tool::Curve(E,L,a,b);
+ gp_Pnt P1;
+ C->D0(a,P1);
+ double dp = (b-a)/nbe;
+ for(int i=1; i<=nbe; i++) {
+ gp_Pnt P2;
+ C->D0(a+i*dp,P2);
+ aLen += P1.Distance(P2);
+ P1 = P2;
+ }
}
- else
- {
- MESSAGE("Error in Triangulation");
- isOk = false;
+ if(NbSeg<1) {
+ std::vector<int> aResVec(SMDSEntity_Last);
+ for(int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aResVec[i] = 0;
+ SMESH_subMesh * sm = aMesh.GetSubMesh(aShape);
+ aResMap.insert(std::make_pair(sm,aResVec));
+ SMESH_ComputeErrorPtr& smError = sm->GetComputeError();
+ smError.reset( new SMESH_ComputeError(COMPERR_ALGO_FAILED,
+ "Submesh can not be evaluated",this));
+ return false;
}
- if (nudslf != NULL)
- delete[]nudslf;
- if (uvslf != NULL)
- delete[]uvslf;
- if (uvst != NULL)
- delete[]uvst;
- if (nust != NULL)
- delete[]nust;
- delete myTool; myTool = 0;
+ aLen = aLen/NbSeg; // middle length
- return isOk;
+ _edgeLength = Precision::Infinite();
+ double tmpLength = Min( _edgeLength, aLen );
+
+ GProp_GProps G;
+ BRepGProp::SurfaceProperties(aShape,G);
+ double anArea = G.Mass();
+
+ int nbFaces = Precision::IsInfinite( tmpLength ) ? 0 :
+ (int)( anArea/(tmpLength*tmpLength*sqrt(3.)/4) );
+ int nbNodes = (int) ( nbFaces*3 - (NbSeg-1)*2 ) / 6;
+
+ std::vector<int> aVec(SMDSEntity_Last);
+ for(int i=SMDSEntity_Node; i<SMDSEntity_Last; i++) aVec[i] = 0;
+ if(IsQuadratic) {
+ aVec[SMDSEntity_Quad_Triangle] = nbFaces;
+ aVec[SMDSEntity_Node] = (int)( nbNodes + nbFaces*3 - (NbSeg-1) );
+ }
+ else {
+ aVec[SMDSEntity_Node] = nbNodes;
+ aVec[SMDSEntity_Triangle] = nbFaces;
+ }
+ SMESH_subMesh * sm = aMesh.GetSubMesh(aShape);
+ aResMap.insert(std::make_pair(sm,aVec));
+
+ return true;
}
+
//=======================================================================
//function : fixOverlappedLinkUV
//purpose : prevent failure due to overlapped adjacent links
//purpose :
//=======================================================================
-static bool fixCommonVertexUV (gp_Pnt2d & theUV,
+static bool fixCommonVertexUV (R2 & theUV,
const TopoDS_Vertex& theV,
- const TopoDS_Wire& theW,
- const TopoDS_Wire& theOW,
const TopoDS_Face& theF,
const TopTools_IndexedDataMapOfShapeListOfShape & theVWMap,
SMESH_Mesh & theMesh,
- bool CreateQuadratic)
+ const double theScaleX,
+ const double theScaleY,
+ const bool theCreateQuadratic)
{
- if( theW.IsSame( theOW ) ||
- !theVWMap.Contains( theV )) return false;
+ if( !theVWMap.Contains( theV )) return false;
// check if there is another wire sharing theV
const TopTools_ListOfShape& WList = theVWMap.FindFromKey( theV );
TopTools_ListIteratorOfListOfShape aWIt;
+ TopTools_MapOfShape aWires;
for ( aWIt.Initialize( WList ); aWIt.More(); aWIt.Next() )
- if ( !theW.IsSame( aWIt.Value() ))
- break;
- if ( !aWIt.More() ) return false;
+ aWires.Add( aWIt.Value() );
+ if ( aWires.Extent() < 2 ) return false;
+
+ TopoDS_Shape anOuterWire = BRepTools::OuterWire(theF);
+ TopoDS_Shape anInnerWire;
+ for ( aWIt.Initialize( WList ); aWIt.More() && anInnerWire.IsNull(); aWIt.Next() )
+ if ( !anOuterWire.IsSame( aWIt.Value() ))
+ anInnerWire = aWIt.Value();
TopTools_ListOfShape EList;
list< double > UList;
// find edges of theW sharing theV
// and find 2d normal to them at theV
gp_Vec2d N(0.,0.);
- TopoDS_Iterator itE( theW );
+ TopoDS_Iterator itE( anInnerWire );
for ( ; itE.More(); itE.Next() )
{
const TopoDS_Edge& E = TopoDS::Edge( itE.Value() );
gp_Vec2d d1;
gp_Pnt2d p;
C2d->D1( u, p, d1 );
- gp_Vec2d n( d1.Y(), -d1.X() );
+ gp_Vec2d n( d1.Y() * theScaleX, -d1.X() * theScaleY);
if ( E.Orientation() == TopAbs_REVERSED )
n.Reverse();
N += n.Normalized();
// define step size by which to move theUV
gp_Pnt2d nextUV; // uv of next node on edge, most distant of the four
+ gp_Pnt2d thisUV( theUV.x, theUV.y );
double maxDist = -DBL_MAX;
TopTools_ListIteratorOfListOfShape aEIt (EList);
list< double >::iterator aUIt = UList.begin();
while ( nIt->more() ) {
const SMDS_MeshNode* node = nIt->next();
// check if node is medium
- if ( CreateQuadratic && SMESH_MesherHelper::IsMedium( node, SMDSAbs_Edge ))
+ if ( theCreateQuadratic && SMESH_MesherHelper::IsMedium( node, SMDSAbs_Edge ))
continue;
const SMDS_EdgePosition* epos =
- static_cast<const SMDS_EdgePosition*>(node->GetPosition().get());
+ static_cast<const SMDS_EdgePosition*>(node->GetPosition());
double u = epos->GetUParameter();
if ( u < umin )
umin = u;
}
bool isFirstCommon = ( *aUIt == f );
gp_Pnt2d uv = C2d->Value( isFirstCommon ? umin : umax );
- double dist = theUV.SquareDistance( uv );
+ double dist = thisUV.SquareDistance( uv );
if ( dist > maxDist ) {
maxDist = dist;
nextUV = uv;
}
}
R2 uv0, uv1, uv2;
- uv0.x = theUV.X(); uv0.y = theUV.Y();
+ uv0.x = thisUV.X(); uv0.y = thisUV.Y();
uv1.x = nextUV.X(); uv1.y = nextUV.Y();
- uv2.x = uv0.x; uv2.y = uv0.y;
+ uv2.x = thisUV.X(); uv2.y = thisUV.Y();
+
+ uv1.x *= theScaleX; uv1.y *= theScaleY;
+
if ( fixOverlappedLinkUV( uv0, uv1, uv2 ))
{
- double step = theUV.Distance( gp_Pnt2d( uv0.x, uv0.y ));
+ double step = thisUV.Distance( gp_Pnt2d( uv0.x, uv0.y ));
// move theUV along the normal by the step
N *= step;
- MESSAGE("--fixCommonVertexUV move(" << theUV.X() << " " << theUV.Y()
+ MESSAGE("--fixCommonVertexUV move(" << theUV.x << " " << theUV.x
<< ") by (" << N.X() << " " << N.Y() << ")"
<< endl << "--- MAX DIST " << maxDist);
- theUV.SetXY( theUV.XY() + N.XY() );
+ theUV.x += N.X();
+ theUV.y += N.Y();
return true;
}
*/
//=============================================================================
-bool StdMeshers_MEFISTO_2D::LoadPoints(SMESH_Mesh & aMesh,
- const TopoDS_Face & FF,
- const TopoDS_Wire & WW,
- R2 * uvslf,
- int & m,
- map<int, const SMDS_MeshNode*>&mefistoToDS,
- double scalex,
- double scaley,
- const TopTools_IndexedDataMapOfShapeListOfShape& VWMap)
+bool StdMeshers_MEFISTO_2D::LoadPoints(TWireVector & wires,
+ R2 * uvslf,
+ vector<const SMDS_MeshNode*>& mefistoToDS,
+ double scalex,
+ double scaley)
{
- // MESSAGE("StdMeshers_MEFISTO_2D::LoadPoints");
-
- TopoDS_Face F = TopoDS::Face(FF.Oriented(TopAbs_FORWARD));
-
- list< int > mOnVertex;
-
- gp_XY scale( scalex, scaley );
-
- TopoDS_Wire W = TopoDS::Wire(WW.Oriented(TopAbs_FORWARD));
- BRepTools_WireExplorer wexp(W, F);
- for ( wexp.Init(W, F); wexp.More(); wexp.Next() )
+ // to avoid passing same uv points for a vertex common to 2 wires
+ TopoDS_Face F;
+ TopTools_IndexedDataMapOfShapeListOfShape VWMap;
+ if ( wires.size() > 1 )
{
- const TopoDS_Edge & E = wexp.Current();
- bool isForward = (E.Orientation() == TopAbs_FORWARD);
-
- // --- IDNodes of first and last Vertex
+ F = TopoDS::Face( _helper->GetSubShape() );
+ TopExp::MapShapesAndAncestors( F, TopAbs_VERTEX, TopAbs_WIRE, VWMap );
+ int nbVertices = 0;
+ for ( int iW = 0; iW < wires.size(); ++iW )
+ nbVertices += wires[ iW ]->NbEdges();
+ if ( nbVertices == VWMap.Extent() )
+ VWMap.Clear(); // wires have no common vertices
+ }
- TopoDS_Vertex VFirst, VLast, V;
- TopExp::Vertices(E, VFirst, VLast); // corresponds to f and l
- V = isForward ? VFirst : VLast;
+ int m = 0;
- ASSERT(!V.IsNull());
- SMDS_NodeIteratorPtr lid= aMesh.GetSubMesh(V)->GetSubMeshDS()->GetNodes();
- if ( !lid->more() ) {
- MESSAGE (" NO NODE BUILT ON VERTEX ");
- return false;
+ for ( int iW = 0; iW < wires.size(); ++iW )
+ {
+ const vector<UVPtStruct>& uvPtVec = wires[ iW ]->GetUVPtStruct();
+ if ( uvPtVec.size() != wires[ iW ]->NbPoints() ) {
+ return error(COMPERR_BAD_INPUT_MESH,SMESH_Comment("Unexpected nb of points on wire ")
+ << iW << ": " << uvPtVec.size()<<" != "<<wires[ iW ]->NbPoints()
+ << ", probably because of invalid node parameters on geom edges");
+ }
+ if ( m + uvPtVec.size()-1 > mefistoToDS.size() ) {
+ MESSAGE("Wrong mefistoToDS.size: "<<mefistoToDS.size()<<" < "<<m + uvPtVec.size()-1);
+ return error("Internal error");
}
- const SMDS_MeshNode* idFirst = lid->next();
-
- // --- edge internal IDNodes (relies on good order storage, not checked)
-
- map<double, const SMDS_MeshNode*> params;
- const SMDS_MeshNode * node;
- SMDS_NodeIteratorPtr nodeIt= aMesh.GetSubMesh(E)->GetSubMeshDS()->GetNodes();
- while ( nodeIt->more() )
+ list< int > mOnVertex;
+ vector<UVPtStruct>::const_iterator uvPt = uvPtVec.begin();
+ for ( ++uvPt; uvPt != uvPtVec.end(); ++uvPt )
{
- node = nodeIt->next();
- if ( _quadraticMesh && SMESH_MesherHelper::IsMedium( node, SMDSAbs_Edge ))
- continue;
- const SMDS_EdgePosition* epos =
- static_cast<const SMDS_EdgePosition*>(node->GetPosition().get());
- double param = epos->GetUParameter();
- if ( !isForward ) param = -param;
- if ( !params.insert( make_pair( param, node )).second )
+ // bind mefisto ID to node
+ mefistoToDS[m] = uvPt->node;
+ // set UV
+ uvslf[m].x = uvPt->u * scalex;
+ uvslf[m].y = uvPt->v * scaley;
+ switch ( uvPt->node->GetPosition()->GetTypeOfPosition())
{
- MESSAGE( "BAD NODE ON EDGE POSITIONS" );
- return false;
+ case SMDS_TOP_VERTEX:
+ mOnVertex.push_back( m );
+ break;
+ case SMDS_TOP_EDGE:
+ // In order to detect degenerated faces easily, we replace
+ // nodes on a degenerated edge by node on the vertex of that edge
+ if ( _helper->IsDegenShape( uvPt->node->getshapeId() ))
+ {
+ int edgeID = uvPt->node->getshapeId();
+ SMESH_subMesh* edgeSM = _helper->GetMesh()->GetSubMeshContaining( edgeID );
+ SMESH_subMeshIteratorPtr smIt = edgeSM->getDependsOnIterator( /*includeSelf=*/0,
+ /*complexShapeFirst=*/0);
+ if ( smIt->more() )
+ {
+ SMESH_subMesh* vertexSM = smIt->next();
+ SMDS_NodeIteratorPtr nIt = vertexSM->GetSubMeshDS()->GetNodes();
+ if ( nIt->more() )
+ mefistoToDS[m] = nIt->next();
+ }
+ }
+ break;
+ default:;
}
+ m++;
}
- // --- load 2D values into MEFISTO structure,
- // add IDNodes in mefistoToDS map
-
- double f, l, uFirst, u;
- Handle(Geom2d_Curve) C2d = BRep_Tool::CurveOnSurface(E, F, f, l);
- uFirst = isForward ? f : l;
-
- // vertex node
- gp_Pnt2d p = C2d->Value( uFirst ).XY().Multiplied( scale );
- if ( fixCommonVertexUV( p, V, W, myOuterWire, F, VWMap, aMesh, _quadraticMesh ))
- myNodesOnCommonV.push_back( idFirst );
- mOnVertex.push_back( m );
- uvslf[m].x = p.X();
- uvslf[m].y = p.Y();
- mefistoToDS[m + 1] = idFirst;
- //MESSAGE(" "<<m<<" "<<mefistoToDS[m+1]);
- //MESSAGE("__ f "<<uFirst<<" "<<uvslf[m].x <<" "<<uvslf[m].y);
- m++;
-
- // internal nodes
- map<double, const SMDS_MeshNode*>::iterator u_n = params.begin();
- for ( int i = 0; u_n != params.end(); ++u_n, ++i )
+ int mFirst = mOnVertex.front(), mLast = m - 1;
+ list< int >::iterator mIt = mOnVertex.begin();
+ for ( ; mIt != mOnVertex.end(); ++mIt)
{
- u = isForward ? u_n->first : - u_n->first;
- gp_Pnt2d p = C2d->Value( u ).XY().Multiplied( scale );
- uvslf[m].x = p.X();
- uvslf[m].y = p.Y();
- mefistoToDS[m + 1] = u_n->second;
- //MESSAGE(" "<<m<<" "<<mefistoToDS[m+1]);
- //MESSAGE("__ "<<i<<" "<<param<<" "<<uvslf[m].x <<" "<<uvslf[m].y);
- m++;
+ int m = *mIt;
+ if ( iW && !VWMap.IsEmpty()) { // except outer wire
+ // avoid passing same uv point for a vertex common to 2 wires
+ int vID = mefistoToDS[m]->getshapeId();
+ TopoDS_Vertex V = TopoDS::Vertex( _helper->GetMeshDS()->IndexToShape( vID ));
+ if ( fixCommonVertexUV( uvslf[m], V, F, VWMap, *_helper->GetMesh(),
+ scalex, scaley, _quadraticMesh )) {
+ myNodesOnCommonV.push_back( mefistoToDS[m] );
+ continue;
+ }
+ }
+ // prevent failure on overlapped adjacent links,
+ // check only links ending in vertex nodes
+ int mB = m - 1, mA = m + 1; // indices Before and After
+ if ( mB < mFirst ) mB = mLast;
+ if ( mA > mLast ) mA = mFirst;
+ fixOverlappedLinkUV (uvslf[ mB ], uvslf[ m ], uvslf[ mA ]);
}
- } // for wexp
-
- // prevent failure on overlapped adjacent links,
- // check only links ending in vertex nodes
- int mFirst = mOnVertex.front(), mLast = m - 1;
- list< int >::iterator mIt = mOnVertex.begin();
- for ( ; mIt != mOnVertex.end(); ++mIt ) {
- int i = *mIt;
- int iB = i - 1, iA = i + 1; // indices Before and After
- if ( iB < mFirst ) iB = mLast;
- if ( iA > mLast ) iA = mFirst;
- fixOverlappedLinkUV (uvslf[ iB ], uvslf[ i ], uvslf[ iA ]);
}
+#ifdef DUMP_POINTS
+ cout << "MEFISTO INPUT************" << endl;
+ for ( int i =0; i < m; ++i )
+ cout << i << ": \t" << uvslf[i].x << ", " << uvslf[i].y
+ << " Node " << mefistoToDS[i]->GetID()<< endl;
+#endif
+
return true;
}
*/
//=============================================================================
-void StdMeshers_MEFISTO_2D::ComputeScaleOnFace(SMESH_Mesh & aMesh,
- const TopoDS_Face & aFace, double &scalex, double &scaley)
+void StdMeshers_MEFISTO_2D::ComputeScaleOnFace(SMESH_Mesh & aMesh,
+ const TopoDS_Face & aFace,
+ double & scalex,
+ double & scaley)
{
- //MESSAGE("StdMeshers_MEFISTO_2D::ComputeScaleOnFace");
- TopoDS_Face F = TopoDS::Face(aFace.Oriented(TopAbs_FORWARD));
- TopoDS_Wire W = BRepTools::OuterWire(F);
+ TopoDS_Wire W = BRepTools::OuterWire(aFace);
double xmin = 1.e300; // min & max of face 2D parametric coord.
double xmax = -1.e300;
{
const TopoDS_Edge & E = TopoDS::Edge( wexp.Current() );
double f, l;
- Handle(Geom2d_Curve) C2d = BRep_Tool::CurveOnSurface(E, F, f, l);
+ Handle(Geom2d_Curve) C2d = BRep_Tool::CurveOnSurface(E, aFace, f, l);
if ( C2d.IsNull() ) continue;
double du = (l - f) / double (nbp);
for (int i = 0; i <= nbp; i++)
double xsize = xmax - xmin;
double ysize = ymax - ymin;
- Handle(Geom_Surface) S = BRep_Tool::Surface(F); // 3D surface
+ TopLoc_Location L;
+ Handle(Geom_Surface) S = BRep_Tool::Surface(aFace,L); // 3D surface
double length_x = 0;
double length_y = 0;
ASSERT(scaley);
}
+// namespace
+// {
+// bool isDegenTria( const SMDS_MeshNode * nn[3] )
+// {
+// SMESH_TNodeXYZ p1( nn[0] );
+// SMESH_TNodeXYZ p2( nn[1] );
+// SMESH_TNodeXYZ p3( nn[2] );
+// gp_XYZ vec1 = p2 - p1;
+// gp_XYZ vec2 = p3 - p1;
+// gp_XYZ cross = vec1 ^ vec2;
+// const double eps = 1e-100;
+// return ( fabs( cross.X() ) < eps &&
+// fabs( cross.Y() ) < eps &&
+// fabs( cross.Z() ) < eps );
+// }
+// }
+
//=============================================================================
/*!
*
*/
//=============================================================================
-void StdMeshers_MEFISTO_2D::StoreResult(SMESH_Mesh & aMesh,
- Z nbst, R2 * uvst, Z nbt, Z * nust,
- const TopoDS_Face & F, bool faceIsForward,
- map<int, const SMDS_MeshNode*>&mefistoToDS,
+void StdMeshers_MEFISTO_2D::StoreResult(Z nbst, R2 * uvst, Z nbt, Z * nust,
+ vector< const SMDS_MeshNode*>&mefistoToDS,
double scalex, double scaley)
{
- SMESHDS_Mesh * meshDS = aMesh.GetMeshDS();
- int faceID = meshDS->ShapeToIndex( F );
+ _helper->SetElementsOnShape( true );
- Z n, m;
- Handle(Geom_Surface) S = BRep_Tool::Surface(F);
+ TopoDS_Face F = TopoDS::Face( _helper->GetSubShape() );
+ Handle(Geom_Surface) S = BRep_Tool::Surface( F );
- for (n = 0; n < nbst; n++)
+ //const size_t nbInputNodes = mefistoToDS.size();
+
+ Z n = mefistoToDS.size(); // nb input points
+ mefistoToDS.resize( nbst );
+ for ( ; n < nbst; n++)
{
- if (mefistoToDS.find(n + 1) == mefistoToDS.end())
+ if (!mefistoToDS[n])
{
double u = uvst[n][0] / scalex;
double v = uvst[n][1] / scaley;
gp_Pnt P = S->Value(u, v);
- SMDS_MeshNode * node = meshDS->AddNode(P.X(), P.Y(), P.Z());
- meshDS->SetNodeOnFace(node, faceID, u, v);
-
- //MESSAGE(P.X()<<" "<<P.Y()<<" "<<P.Z());
- mefistoToDS[n + 1] = node;
- //MESSAGE("NEW: "<<n<<" "<<mefistoToDS[n+1]);
+ mefistoToDS[n] = _helper->AddNode( P.X(), P.Y(), P.Z(), 0, u, v );
}
}
- m = 0;
+ Z m = 0;
// triangle points must be in trigonometric order if face is Forward
// else they must be put clockwise
- bool triangleIsWellOriented = faceIsForward;
+ int i1 = 1, i2 = 2;
+ if ( F.Orientation() != TopAbs_FORWARD )
+ std::swap( i1, i2 );
+ const SMDS_MeshNode * nn[3];
for (n = 1; n <= nbt; n++)
{
- const SMDS_MeshNode * n1 = mefistoToDS[ nust[m++] ];
- const SMDS_MeshNode * n2 = mefistoToDS[ nust[m++] ];
- const SMDS_MeshNode * n3 = mefistoToDS[ nust[m++] ];
-
- SMDS_MeshElement * elt;
- if (triangleIsWellOriented)
- //elt = meshDS->AddFace(n1, n2, n3);
- elt = myTool->AddFace(n1, n2, n3);
- else
- //elt = meshDS->AddFace(n1, n3, n2);
- elt = myTool->AddFace(n1, n3, n2);
-
- meshDS->SetMeshElementOnShape(elt, faceID);
+ // const bool allNodesAreOld = ( nust[m + 0] <= nbInputNodes &&
+ // nust[m + 1] <= nbInputNodes &&
+ // nust[m + 2] <= nbInputNodes );
+ nn[ 0 ] = mefistoToDS[ nust[m++] - 1 ];
+ nn[ 1 ] = mefistoToDS[ nust[m++] - 1 ];
+ nn[ 2 ] = mefistoToDS[ nust[m++] - 1 ];
m++;
+
+ // avoid creating degenetrated faces
+ bool isDegen = ( _helper->HasDegeneratedEdges() &&
+ ( nn[0] == nn[1] || nn[1] == nn[2] || nn[2] == nn[0] ));
+
+ // It was an attemp to fix a problem of a zero area face whose all nodes
+ // are on one staight EDGE. But omitting this face makes a hole in the mesh :(
+ // if ( !isDegen && allNodesAreOld )
+ // isDegen = isDegenTria( nn );
+
+ if ( !isDegen )
+ _helper->AddFace( nn[0], nn[i1], nn[i2] );
}
// remove bad elements built on vertices shared by wires
nbSame++;
if (nbSame > 1) {
MESSAGE( "RM bad element " << elem->GetID());
- meshDS->RemoveElement( elem );
+ _helper->GetMeshDS()->RemoveElement( elem );
}
}
}
-
-}
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-double StdMeshers_MEFISTO_2D::ComputeEdgeElementLength(SMESH_Mesh & aMesh,
- const TopoDS_Shape & aShape)
-{
- //MESSAGE("StdMeshers_MEFISTO_2D::ComputeEdgeElementLength");
- // **** a mettre dans SMESH_2D_Algo ?
-
- //const TopoDS_Face & FF = TopoDS::Face(aShape);
- //bool faceIsForward = (FF.Orientation() == TopAbs_FORWARD);
- //TopoDS_Face F = TopoDS::Face(FF.Oriented(TopAbs_FORWARD));
-
- double meanElementLength = 100;
- double wireLength = 0;
- int wireElementsNumber = 0;
- for (TopExp_Explorer expe(aShape, TopAbs_EDGE); expe.More(); expe.Next())
- {
- const TopoDS_Edge & E = TopoDS::Edge(expe.Current());
- int nb = aMesh.GetSubMesh(E)->GetSubMeshDS()->NbNodes();
- double length = EdgeLength(E);
- wireLength += length;
- wireElementsNumber += nb;
- }
- if (wireElementsNumber)
- meanElementLength = wireLength / wireElementsNumber;
- //SCRUTE(meanElementLength);
- return meanElementLength;
-}
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-ostream & StdMeshers_MEFISTO_2D::SaveTo(ostream & save)
-{
- return save;
-}
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-istream & StdMeshers_MEFISTO_2D::LoadFrom(istream & load)
-{
- return load;
-}
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-ostream & operator <<(ostream & save, StdMeshers_MEFISTO_2D & hyp)
-{
- return hyp.SaveTo( save );
-}
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-istream & operator >>(istream & load, StdMeshers_MEFISTO_2D & hyp)
-{
- return hyp.LoadFrom( load );
}
