+++ /dev/null
-// SMESH SMESH : implementaion of SMESH idl descriptions
-//
-// 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
-//
-//
-//
-// File : SMESH_Quadrangle_2D.cxx
-// Author : Paul RASCLE, EDF
-// Module : SMESH
-// $Header$
-
-using namespace std;
-#include "SMESH_Quadrangle_2D.hxx"
-#include "SMESH_Gen.hxx"
-#include "SMESH_Mesh.hxx"
-
-#include "SMDS_MeshElement.hxx"
-#include "SMDS_MeshNode.hxx"
-#include "SMDS_EdgePosition.hxx"
-#include "SMDS_FacePosition.hxx"
-
-#include <BRep_Tool.hxx>
-#include <BRepTools.hxx>
-#include <BRepTools_WireExplorer.hxx>
-#include <Geom_Surface.hxx>
-#include <Geom_Curve.hxx>
-#include <Geom2d_Curve.hxx>
-#include <Handle_Geom2d_Curve.hxx>
-#include <Handle_Geom_Curve.hxx>
-#include <gp_Pnt2d.hxx>
-#include <TColStd_ListIteratorOfListOfInteger.hxx>
-
-#include "utilities.h"
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-SMESH_Quadrangle_2D::SMESH_Quadrangle_2D(int hypId,
- int studyId, SMESH_Gen * gen):SMESH_2D_Algo(hypId, studyId, gen)
-{
- MESSAGE("SMESH_Quadrangle_2D::SMESH_Quadrangle_2D");
- _name = "Quadrangle_2D";
- // _shapeType = TopAbs_FACE;
- _shapeType = (1 << TopAbs_FACE);
-}
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-SMESH_Quadrangle_2D::~SMESH_Quadrangle_2D()
-{
- MESSAGE("SMESH_Quadrangle_2D::~SMESH_Quadrangle_2D");
-}
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-bool SMESH_Quadrangle_2D::CheckHypothesis(SMESH_Mesh & aMesh,
- const TopoDS_Shape & aShape)
-{
- //MESSAGE("SMESH_Quadrangle_2D::CheckHypothesis");
-
- bool isOk = true;
-
- // nothing to check
-
- return isOk;
-}
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-bool SMESH_Quadrangle_2D::Compute(SMESH_Mesh & aMesh,
- const TopoDS_Shape & aShape)throw(SALOME_Exception)
-{
- //MESSAGE("SMESH_Quadrangle_2D::Compute");
- SMESHDS_Mesh * meshDS = aMesh.GetMeshDS();
- SMESH_subMesh *theSubMesh = aMesh.GetSubMesh(aShape);
-
- FaceQuadStruct *quad = CheckAnd2Dcompute(aMesh, aShape);
- if (!quad)
- return false;
-
- // --- compute 3D values on points, store points & quadrangles
-
- int nbdown = quad->nbPts[0];
- int nbright = quad->nbPts[1];
- int nbVertices = nbdown * nbright;
- int nbQuad = (nbdown - 1) * (nbright - 1);
- //SCRUTE(nbVertices);
- //SCRUTE(nbQuad);
-
- // const TopoDS_Face& FF = TopoDS::Face(aShape);
- // bool faceIsForward = (FF.Orientation() == TopAbs_FORWARD);
- // TopoDS_Face F = TopoDS::Face(FF.Oriented(TopAbs_FORWARD));
- const TopoDS_Face & F = TopoDS::Face(aShape);
- bool faceIsForward = (F.Orientation() == TopAbs_FORWARD);
- Handle(Geom_Surface) S = BRep_Tool::Surface(F);
-
- for (int i = 1; i < nbdown - 1; i++)
- for (int j = 1; j < nbright - 1; j++) // internal points
- {
- int ij = j * nbdown + i;
- double u = quad->uv_grid[ij].u;
- double v = quad->uv_grid[ij].v;
- gp_Pnt P = S->Value(u, v);
- SMDS_MeshNode * node = meshDS->AddNode(P.X(), P.Y(), P.Z());
- meshDS->SetNodeOnFace(node, F);
- quad->uv_grid[ij].node = node;
-// Handle (SMDS_FacePosition) fpos
-// = new SMDS_FacePosition(theSubMesh->GetId(),i,j); // easier than u,v
-// node->SetPosition(fpos);
- SMDS_FacePosition* fpos
- = dynamic_cast<SMDS_FacePosition*>(node->GetPosition());
- fpos->SetUParameter(i);
- fpos->SetVParameter(j);
- }
-
- // bool isQuadForward = ( faceIsForward == quad->isEdgeForward[0]);
- for (int i = 0; i < nbdown - 1; i++)
- for (int j = 0; j < nbright - 1; j++) // faces
- {
- const SMDS_MeshNode *a, *b, *c, *d;
- a = quad->uv_grid[j * nbdown + i].node;
- b = quad->uv_grid[j * nbdown + i + 1].node;
- c = quad->uv_grid[(j + 1) * nbdown + i + 1].node;
- d = quad->uv_grid[(j + 1) * nbdown + i].node;
- // if (isQuadForward) faceId = meshDS->AddFace(a,b,c,d);
- // else faceId = meshDS->AddFace(a,d,c,b);
- SMDS_MeshFace * face = meshDS->AddFace(a, b, c, d);
- meshDS->SetMeshElementOnShape(face, F);
- }
-
- QuadDelete(quad);
- bool isOk = true;
- return isOk;
-}
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-FaceQuadStruct *SMESH_Quadrangle_2D::CheckAnd2Dcompute(SMESH_Mesh & aMesh,
- const TopoDS_Shape & aShape)throw(SALOME_Exception)
-{
- //MESSAGE("SMESH_Quadrangle_2D::ComputeWithoutStore");
-
- SMESH_subMesh *theSubMesh = aMesh.GetSubMesh(aShape);
-
- // const TopoDS_Face& FF = TopoDS::Face(aShape);
- // bool faceIsForward = (FF.Orientation() == TopAbs_FORWARD);
- // TopoDS_Face F = TopoDS::Face(FF.Oriented(TopAbs_FORWARD));
- const TopoDS_Face & F = TopoDS::Face(aShape);
- bool faceIsForward = (F.Orientation() == TopAbs_FORWARD);
-
- // verify 1 wire only, with 4 edges, same number of points on opposite edges
-
- if (NumberOfWires(F) != 1)
- {
- MESSAGE("only 1 wire by face (quadrangles)");
- return 0;
- //throw SALOME_Exception(LOCALIZED("only 1 wire by face (quadrangles)"));
- }
- // const TopoDS_Wire WW = BRepTools::OuterWire(F);
- // TopoDS_Wire W = TopoDS::Wire(WW.Oriented(TopAbs_FORWARD));
- const TopoDS_Wire & W = BRepTools::OuterWire(F);
- BRepTools_WireExplorer wexp(W, F);
-
- FaceQuadStruct *quad = new FaceQuadStruct;
- for (int i = 0; i < 4; i++)
- quad->uv_edges[i] = 0;
- quad->uv_grid = 0;
-
- int nbEdges = 0;
- for (wexp.Init(W, F); wexp.More(); wexp.Next())
- {
- // const TopoDS_Edge& EE = wexp.Current();
- // TopoDS_Edge E = TopoDS::Edge(EE.Oriented(TopAbs_FORWARD));
- const TopoDS_Edge & E = wexp.Current();
- int nb = aMesh.GetSubMesh(E)->GetSubMeshDS()->NbNodes();
- if (nbEdges < 4)
- {
- quad->edge[nbEdges] = E;
- quad->nbPts[nbEdges] = nb + 2; // internal points + 2 extrema
- }
- nbEdges++;
- }
-
- if (nbEdges != 4)
- {
- MESSAGE("face must have 4 edges /quadrangles");
- QuadDelete(quad);
- return 0;
- //throw SALOME_Exception(LOCALIZED("face must have 4 edges /quadrangles"));
- }
-
- if (quad->nbPts[0] != quad->nbPts[2])
- {
- MESSAGE("different point number-opposed edge");
- QuadDelete(quad);
- return 0;
- //throw SALOME_Exception(LOCALIZED("different point number-opposed edge"));
- }
-
- if (quad->nbPts[1] != quad->nbPts[3])
- {
- MESSAGE("different point number-opposed edge");
- QuadDelete(quad);
- return 0;
- //throw SALOME_Exception(LOCALIZED("different point number-opposed edge"));
- }
-
- // set normalized grid on unit square in parametric domain
-
- SetNormalizedGrid(aMesh, F, quad);
-
- return quad;
-}
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-void SMESH_Quadrangle_2D::QuadDelete(FaceQuadStruct * quad)
-{
- //MESSAGE("SMESH_Quadrangle_2D::QuadDelete");
- if (quad)
- {
- for (int i = 0; i < 4; i++)
- {
- if (quad->uv_edges[i])
- delete[]quad->uv_edges[i];
- quad->edge[i].Nullify();
- }
- if (quad->uv_grid)
- delete[]quad->uv_grid;
- delete quad;
- }
-}
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-void SMESH_Quadrangle_2D::SetNormalizedGrid(SMESH_Mesh & aMesh,
- const TopoDS_Shape & aShape, FaceQuadStruct * quad) throw(SALOME_Exception)
-{
- // Algorithme décrit dans "Génération automatique de maillages"
- // P.L. GEORGE, MASSON, § 6.4.1 p. 84-85
- // traitement dans le domaine paramétrique 2d u,v
- // transport - projection sur le carré unité
-
- const TopoDS_Face & F = TopoDS::Face(aShape);
-
- // 1 --- find orientation of the 4 edges, by test on extrema
-
- // max min 0 x1 1
- // |<----north-2-------^ a3 -------------> a2
- // | | ^1 1^
- // west-3 east-1 =right | |
- // | | ==> | |
- // y0 | | y1 | |
- // | | |0 0|
- // v----south-0--------> a0 -------------> a1
- // min max 0 x0 1
- // =down
- //
-
- Handle(Geom2d_Curve) c2d[4];
- gp_Pnt2d pf[4];
- gp_Pnt2d pl[4];
- for (int i = 0; i < 4; i++)
- {
- c2d[i] = BRep_Tool::CurveOnSurface(quad->edge[i],
- F, quad->first[i], quad->last[i]);
- pf[i] = c2d[i]->Value(quad->first[i]);
- pl[i] = c2d[i]->Value(quad->last[i]);
- quad->isEdgeForward[i] = false;
- }
-
- double eps2d = 1.e-3; // *** utiliser plutot TopExp::CommonVertex, puis
- // distances si piece fausse
- int i = 0;
- if ((pf[1].Distance(pl[0]) < eps2d) || (pl[1].Distance(pl[0]) < eps2d))
- {
- quad->isEdgeForward[0] = true;
- }
- else
- {
- double tmp = quad->first[0];
- quad->first[0] = quad->last[0];
- quad->last[0] = tmp;
- pf[0] = c2d[0]->Value(quad->first[0]);
- pl[0] = c2d[0]->Value(quad->last[0]);
- }
- for (int i = 1; i < 4; i++)
- {
- quad->isEdgeForward[i] = (pf[i].Distance(pl[i - 1]) < eps2d);
- if (!quad->isEdgeForward[i])
- {
- double tmp = quad->first[i];
- quad->first[i] = quad->last[i];
- quad->last[i] = tmp;
- pf[i] = c2d[i]->Value(quad->first[i]);
- pl[i] = c2d[i]->Value(quad->last[i]);
- //SCRUTE(pf[i].Distance(pl[i-1]));
- ASSERT(pf[i].Distance(pl[i - 1]) < eps2d);
- }
- }
- //SCRUTE(pf[0].Distance(pl[3]));
- ASSERT(pf[0].Distance(pl[3]) < eps2d);
-
-// for (int i=0; i<4; i++)
-// {
-// SCRUTE(quad->isEdgeForward[i]);
-// MESSAGE(" -first "<<i<<" "<<pf[i].X()<<" "<<pf[i].Y());
-// MESSAGE(" -last "<<i<<" "<<pl[i].X()<<" "<<pl[i].Y());
-// }
-
- // 2 --- load 2d edge points (u,v) with orientation and value on unit square
-
- for (int i = 0; i < 2; i++)
- {
- quad->uv_edges[i] = LoadEdgePoints(aMesh, F,
- quad->edge[i], quad->first[i], quad->last[i]);
-
- // quad->isEdgeForward[i]);
- }
- for (int i = 2; i < 4; i++)
- {
- quad->uv_edges[i] = LoadEdgePoints(aMesh, F,
- quad->edge[i], quad->last[i], quad->first[i]);
-
- // !quad->isEdgeForward[i]);
- }
-
- // 3 --- 2D normalized values on unit square [0..1][0..1]
-
- int nbdown = quad->nbPts[0];
- int nbright = quad->nbPts[1];
- quad->uv_grid = new UVPtStruct[nbright * nbdown];
-
- UVPtStruct *uv_grid = quad->uv_grid;
- UVPtStruct *uv_e0 = quad->uv_edges[0];
- UVPtStruct *uv_e1 = quad->uv_edges[1];
- UVPtStruct *uv_e2 = quad->uv_edges[2];
- UVPtStruct *uv_e3 = quad->uv_edges[3];
- gp_Pnt2d a0 = pf[0];
- gp_Pnt2d a1 = pf[1];
- gp_Pnt2d a2 = pf[2];
- gp_Pnt2d a3 = pf[3];
-
- // nodes Id on edges
-
- int j = 0;
- for (int i = 0; i < nbdown; i++)
- {
- int ij = j * nbdown + i;
- uv_grid[ij].node = uv_e0[i].node;
- }
- i = nbdown - 1;
- for (int j = 0; j < nbright; j++)
- {
- int ij = j * nbdown + i;
- uv_grid[ij].node = uv_e1[j].node;
- }
- j = nbright - 1;
- for (int i = 0; i < nbdown; i++)
- {
- int ij = j * nbdown + i;
- uv_grid[ij].node = uv_e2[i].node;
- }
- i = 0;
- for (int j = 0; j < nbright; j++)
- {
- int ij = j * nbdown + i;
- uv_grid[ij].node = uv_e3[j].node;
- }
-
- // normalized 2d values on grid
-
- for (int i = 0; i < nbdown; i++)
- for (int j = 0; j < nbright; j++)
- {
- int ij = j * nbdown + i;
- // --- droite i cste : x = x0 + y(x1-x0)
- double x0 = uv_e0[i].normParam; // bas - sud
- double x1 = uv_e2[i].normParam; // haut - nord
- // --- droite j cste : y = y0 + x(y1-y0)
- double y0 = uv_e3[j].normParam; // gauche-ouest
- double y1 = uv_e1[j].normParam; // droite - est
- // --- intersection : x=x0+(y0+x(y1-y0))(x1-x0)
- double x = (x0 + y0 * (x1 - x0)) / (1 - (y1 - y0) * (x1 - x0));
- double y = y0 + x * (y1 - y0);
- uv_grid[ij].x = x;
- uv_grid[ij].y = y;
- //MESSAGE("-xy-01 "<<x0<<" "<<x1<<" "<<y0<<" "<<y1);
- //MESSAGE("-xy-norm "<<i<<" "<<j<<" "<<x<<" "<<y);
- }
-
- // 4 --- projection on 2d domain (u,v)
-
- for (int i = 0; i < nbdown; i++)
- for (int j = 0; j < nbright; j++)
- {
- int ij = j * nbdown + i;
- double x = uv_grid[ij].x;
- double y = uv_grid[ij].y;
- double param_0 = uv_e0[0].param + x * (uv_e0[nbdown - 1].param - uv_e0[0].param); // sud
- double param_2 = uv_e2[0].param + x * (uv_e2[nbdown - 1].param - uv_e2[0].param); // nord
- double param_1 = uv_e1[0].param + y * (uv_e1[nbright - 1].param - uv_e1[0].param); // est
- double param_3 = uv_e3[0].param + y * (uv_e3[nbright - 1].param - uv_e3[0].param); // ouest
-
- //MESSAGE("params "<<param_0<<" "<<param_1<<" "<<param_2<<" "<<param_3);
- gp_Pnt2d p0 = c2d[0]->Value(param_0);
- gp_Pnt2d p1 = c2d[1]->Value(param_1);
- gp_Pnt2d p2 = c2d[2]->Value(param_2);
- gp_Pnt2d p3 = c2d[3]->Value(param_3);
-
- double u =
- (1 - y) * p0.X() + x * p1.X() + y * p2.X() + (1 - x) * p3.X();
- double v =
- (1 - y) * p0.Y() + x * p1.Y() + y * p2.Y() + (1 - x) * p3.Y();
-
- u -= (1 - x) * (1 - y) * a0.X() + x * (1 - y) * a1.X() +
- x * y * a2.X() + (1 - x) * y * a3.X();
- v -= (1 - x) * (1 - y) * a0.Y() + x * (1 - y) * a1.Y() +
- x * y * a2.Y() + (1 - x) * y * a3.Y();
-
- uv_grid[ij].u = u;
- uv_grid[ij].v = v;
-
- //MESSAGE("-uv- "<<i<<" "<<j<<" "<<uv_grid[ij].u<<" "<<uv_grid[ij].v);
- }
-}
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-UVPtStruct *SMESH_Quadrangle_2D::LoadEdgePoints(SMESH_Mesh & aMesh,
- const TopoDS_Face & F, const TopoDS_Edge & E, double first, double last)
- // bool isForward)
-{
- //MESSAGE("SMESH_Quadrangle_2D::LoadEdgePoints");
-
- SMDS_Mesh * meshDS = aMesh.GetMeshDS();
-
- // --- IDNodes of first and last Vertex
-
- TopoDS_Vertex VFirst, VLast;
- TopExp::Vertices(E, VFirst, VLast); // corresponds to f and l
-
- ASSERT(!VFirst.IsNull());
- SMDS_Iterator<const SMDS_MeshNode *> * lid=
- aMesh.GetSubMesh(VFirst)->GetSubMeshDS()->GetNodes();
- const SMDS_MeshNode * idFirst = lid->next();
- delete lid;
-
- ASSERT(!VLast.IsNull());
- lid=aMesh.GetSubMesh(VLast)->GetSubMeshDS()->GetNodes();
- const SMDS_MeshNode * idLast = lid->next();
- delete lid;
-
- // --- edge internal IDNodes (relies on good order storage, not checked)
-
- int nbPoints = aMesh.GetSubMesh(E)->GetSubMeshDS()->NbNodes();
- //SCRUTE(nbPoints);
- UVPtStruct *uvslf = new UVPtStruct[nbPoints + 2];
-
- double f, l;
- Handle(Geom2d_Curve) C2d = BRep_Tool::CurveOnSurface(E, F, f, l);
-
- map<double, const SMDS_MeshNode *> params;
- SMDS_Iterator<const SMDS_MeshNode *> * ite=
- aMesh.GetSubMesh(E)->GetSubMeshDS()->GetNodes();
-
- while(ite->more())
- {
- const SMDS_MeshNode * node = ite->next();
- const SMDS_EdgePosition* epos
- = static_cast<const SMDS_EdgePosition*>(node->GetPosition());
- double param = epos->GetUParameter();
- params[param] = node;
- }
- delete ite;
-
- bool isForward = (((l - f) * (last - first)) > 0);
- double paramin = 0;
- double paramax = 0;
- if (isForward)
- {
- paramin = f;
- paramax = l;
- gp_Pnt2d p = C2d->Value(f); // first point = Vertex Forward
- uvslf[0].x = p.X();
- uvslf[0].y = p.Y();
- uvslf[0].param = f;
- uvslf[0].node = idFirst;
- //MESSAGE("__ f "<<f<<" "<<uvslf[0].x <<" "<<uvslf[0].y);
- map < double, const SMDS_MeshNode* >::iterator itp = params.begin();
- for (int i = 1; i <= nbPoints; i++) // nbPoints internal
- {
- double param = (*itp).first;
- gp_Pnt2d p = C2d->Value(param);
- uvslf[i].x = p.X();
- uvslf[i].y = p.Y();
- uvslf[i].param = param;
- uvslf[i].node = (*itp).second;
- //MESSAGE("__ "<<i<<" "<<param<<" "<<uvslf[i].x <<" "<<uvslf[i].y);
- itp++;
- }
- p = C2d->Value(l); // last point = Vertex Reversed
- uvslf[nbPoints + 1].x = p.X();
- uvslf[nbPoints + 1].y = p.Y();
- uvslf[nbPoints + 1].param = l;
- uvslf[nbPoints + 1].node = idLast;
- //MESSAGE("__ l "<<l<<" "<<uvslf[nbPoints+1].x <<" "<<uvslf[nbPoints+1].y);
- }
- else
- {
- paramin = l;
- paramax = f;
- gp_Pnt2d p = C2d->Value(l); // first point = Vertex Reversed
- uvslf[0].x = p.X();
- uvslf[0].y = p.Y();
- uvslf[0].param = l;
- uvslf[0].node = idLast;
- //MESSAGE("__ l "<<l<<" "<<uvslf[0].x <<" "<<uvslf[0].y);
- map < double, const SMDS_MeshNode* >::reverse_iterator itp = params.rbegin();
- for (int j = nbPoints; j >= 1; j--) // nbPoints internal
- {
- double param = (*itp).first;
- int i = nbPoints + 1 - j;
- gp_Pnt2d p = C2d->Value(param);
- uvslf[i].x = p.X();
- uvslf[i].y = p.Y();
- uvslf[i].param = param;
- uvslf[i].node = (*itp).second;
- //MESSAGE("__ "<<i<<" "<<param<<" "<<uvslf[i].x <<" "<<uvslf[i].y);
- itp++;
- }
- p = C2d->Value(f); // last point = Vertex Forward
- uvslf[nbPoints + 1].x = p.X();
- uvslf[nbPoints + 1].y = p.Y();
- uvslf[nbPoints + 1].param = f;
- uvslf[nbPoints + 1].node = idFirst;
- //MESSAGE("__ f "<<f<<" "<<uvslf[nbPoints+1].x <<" "<<uvslf[nbPoints+1].y);
- }
-
- ASSERT(paramin != paramax);
- for (int i = 0; i < nbPoints + 2; i++)
- {
- uvslf[i].normParam = (uvslf[i].param - paramin) / (paramax - paramin);
- //SCRUTE(uvslf[i].normParam);
- }
-
- return uvslf;
-}
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-ostream & SMESH_Quadrangle_2D::SaveTo(ostream & save)
-{
- return save << this;
-}
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-istream & SMESH_Quadrangle_2D::LoadFrom(istream & load)
-{
- return load >> (*this);
-}
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-ostream & operator <<(ostream & save, SMESH_Quadrangle_2D & hyp)
-{
- return save;
-}
-
-//=============================================================================
-/*!
- *
- */
-//=============================================================================
-
-istream & operator >>(istream & load, SMESH_Quadrangle_2D & hyp)
-{
- return load;
-}
