src/StdMeshers/StdMeshers_Quadrangle_2D.hxx

   1 //  Copyright (C) 2007-2010  CEA/DEN, EDF R&D, OPEN CASCADE
   2 //
   3 //  Copyright (C) 2003-2007  OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
   4 //  CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
   5 //
   6 //  This library is free software; you can redistribute it and/or
   7 //  modify it under the terms of the GNU Lesser General Public
   8 //  License as published by the Free Software Foundation; either
   9 //  version 2.1 of the License.
  10 //
  11 //  This library is distributed in the hope that it will be useful,
  12 //  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 //  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14 //  Lesser General Public License for more details.
  15 //
  16 //  You should have received a copy of the GNU Lesser General Public
  17 //  License along with this library; if not, write to the Free Software
  18 //  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  19 //
  20 //  See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
  21 //
  22
  23 //  SMESH SMESH : implementaion of SMESH idl descriptions
  24 //  File   : StdMeshers_Quadrangle_2D.hxx
  25 //           Moved here from SMESH_Quadrangle_2D.hxx
  26 //  Author : Paul RASCLE, EDF
  27 //  Module : SMESH
  28 //  $Header$
  29 //
  30 #ifndef _SMESH_QUADRANGLE_2D_HXX_
  31 #define _SMESH_QUADRANGLE_2D_HXX_
  32
  33 #include "SMESH_StdMeshers.hxx"
  34
  35 #include "SMESH_2D_Algo.hxx"
  36 #include "Utils_SALOME_Exception.hxx"
  37
  38 class SMESH_Mesh;
  39 class SMESH_MesherHelper;
  40 class StdMeshers_FaceSide;
  41 class SMDS_MeshNode;
  42 struct uvPtStruct;
  43
  44
  45 enum TSideID { BOTTOM_SIDE=0, RIGHT_SIDE, TOP_SIDE, LEFT_SIDE, NB_SIDES };
  46
  47 typedef uvPtStruct UVPtStruct;
  48 typedef struct faceQuadStruct
  49 {
  50   std::vector< StdMeshers_FaceSide*> side;
  51   bool isEdgeOut[4]; // true, if an edge has more nodes, than the opposite
  52   UVPtStruct* uv_grid;
  53   ~faceQuadStruct();
  54 } FaceQuadStruct;
  55
  56 class STDMESHERS_EXPORT StdMeshers_Quadrangle_2D: public SMESH_2D_Algo
  57 {
  58 public:
  59   StdMeshers_Quadrangle_2D(int hypId, int studyId, SMESH_Gen* gen);
  60   virtual ~StdMeshers_Quadrangle_2D();
  61
  62   virtual bool CheckHypothesis(SMESH_Mesh& aMesh,
  63                                const TopoDS_Shape& aShape,
  64                                SMESH_Hypothesis::Hypothesis_Status& aStatus);
  65
  66   virtual bool Compute(SMESH_Mesh& aMesh,
  67                        const TopoDS_Shape& aShape);
  68
  69   virtual bool Evaluate(SMESH_Mesh & aMesh, const TopoDS_Shape & aShape,
  70                         MapShapeNbElems& aResMap);
  71
  72   FaceQuadStruct* CheckAnd2Dcompute(SMESH_Mesh& aMesh,
  73                                     const TopoDS_Shape& aShape,
  74                                     const bool CreateQuadratic);
  75
  76 protected:
  77
  78   FaceQuadStruct* CheckNbEdges(SMESH_Mesh& aMesh,
  79                                const TopoDS_Shape& aShape);
  80
  81   bool CheckNbEdgesForEvaluate(SMESH_Mesh& aMesh,
  82                                const TopoDS_Shape & aShape,
  83                                MapShapeNbElems& aResMap,
  84                                std::vector<int>& aNbNodes,
  85                                bool& IsQuadratic);
  86
  87   bool SetNormalizedGrid(SMESH_Mesh& aMesh,
  88                          const TopoDS_Shape& aShape,
  89                          FaceQuadStruct*& quad);
  90
  91   void SplitQuad(SMESHDS_Mesh *theMeshDS,
  92                  const int theFaceID,
  93                  const SMDS_MeshNode* theNode1,
  94                  const SMDS_MeshNode* theNode2,
  95                  const SMDS_MeshNode* theNode3,
  96                  const SMDS_MeshNode* theNode4);
  97
  98   /**
  99    * Special function for creation only quandrangle faces
 100    */
 101   bool ComputeQuadPref(SMESH_Mesh& aMesh,
 102                        const TopoDS_Shape& aShape,
 103                        FaceQuadStruct* quad);
 104
 105   bool EvaluateQuadPref(SMESH_Mesh& aMesh,
 106                         const TopoDS_Shape& aShape,
 107                         std::vector<int>& aNbNodes,
 108                         MapShapeNbElems& aResMap,
 109                         bool IsQuadratic);
 110
 111   UVPtStruct* LoadEdgePoints2(SMESH_Mesh& aMesh,
 112                               const TopoDS_Face& F, const TopoDS_Edge& E,
 113                               bool IsReverse);
 114
 115   UVPtStruct* LoadEdgePoints(SMESH_Mesh& aMesh,
 116                              const TopoDS_Face& F, const TopoDS_Edge& E,
 117                              double first, double last);
 118
 119   UVPtStruct* MakeEdgePoints(SMESH_Mesh& aMesh,
 120                              const TopoDS_Face& F, const TopoDS_Edge& E,
 121                              double first, double last, int nb_segm);
 122
 123   // true if QuadranglePreference hypothesis is assigned that forces
 124   // construction of quadrangles if the number of nodes on opposite edges
 125   // is not the same in the case where the global number of nodes on edges
 126   // is even
 127   bool myQuadranglePreference;
 128
 129   bool myTrianglePreference;
 130
 131   int myTriaVertexID;
 132
 133   SMESH_MesherHelper* myTool; // tool for working with quadratic elements
 134 };
 135
 136 #endif