src/StdMeshers/StdMeshers_Quadrangle_2D.hxx

   1 //  Copyright (C) 2007-2008  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 //  SMESH SMESH : implementaion of SMESH idl descriptions
  23 //  File   : StdMeshers_Quadrangle_2D.hxx
  24 //           Moved here from SMESH_Quadrangle_2D.hxx
  25 //  Author : Paul RASCLE, EDF
  26 //  Module : SMESH
  27 //  $Header$
  28 //
  29 #ifndef _SMESH_QUADRANGLE_2D_HXX_
  30 #define _SMESH_QUADRANGLE_2D_HXX_
  31
  32 #include "SMESH_StdMeshers.hxx"
  33
  34 #include "SMESH_2D_Algo.hxx"
  35 #include "Utils_SALOME_Exception.hxx"
  36
  37 class SMESH_Mesh;
  38 class SMESH_MesherHelper;
  39 class StdMeshers_FaceSide;
  40 class SMDS_MeshNode;
  41 struct uvPtStruct;
  42
  43
  44 enum TSideID { BOTTOM_SIDE=0, RIGHT_SIDE, TOP_SIDE, LEFT_SIDE, NB_SIDES };
  45
  46 typedef uvPtStruct UVPtStruct;
  47 typedef struct faceQuadStruct
  48 {
  49   std::vector< StdMeshers_FaceSide*> side;
  50   bool isEdgeOut[4]; // true, if an edge has more nodes, than the opposite
  51   UVPtStruct* uv_grid;
  52   ~faceQuadStruct();
  53 } FaceQuadStruct;
  54
  55 class STDMESHERS_EXPORT StdMeshers_Quadrangle_2D: public SMESH_2D_Algo
  56 {
  57 public:
  58   StdMeshers_Quadrangle_2D(int hypId, int studyId, SMESH_Gen* gen);
  59   virtual ~StdMeshers_Quadrangle_2D();
  60
  61   virtual bool CheckHypothesis(SMESH_Mesh& aMesh,
  62                                const TopoDS_Shape& aShape,
  63                                SMESH_Hypothesis::Hypothesis_Status& aStatus);
  64
  65   virtual bool Compute(SMESH_Mesh& aMesh,
  66                        const TopoDS_Shape& aShape);
  67
  68   virtual bool Evaluate(SMESH_Mesh & aMesh, const TopoDS_Shape & aShape,
  69                         MapShapeNbElems& aResMap);
  70
  71   FaceQuadStruct* CheckAnd2Dcompute(SMESH_Mesh& aMesh,
  72                                     const TopoDS_Shape& aShape,
  73                                     const bool CreateQuadratic);
  74
  75 protected:
  76
  77   FaceQuadStruct* CheckNbEdges(SMESH_Mesh& aMesh,
  78                                const TopoDS_Shape& aShape);
  79
  80   bool CheckNbEdgesForEvaluate(SMESH_Mesh& aMesh,
  81                                const TopoDS_Shape & aShape,
  82                                MapShapeNbElems& aResMap,
  83                                std::vector<int>& aNbNodes,
  84                                bool& IsQuadratic);
  85
  86   bool SetNormalizedGrid(SMESH_Mesh& aMesh,
  87                          const TopoDS_Shape& aShape,
  88                          FaceQuadStruct*& quad);
  89
  90   void SplitQuad(SMESHDS_Mesh *theMeshDS,
  91                  const int theFaceID,
  92                  const SMDS_MeshNode* theNode1,
  93                  const SMDS_MeshNode* theNode2,
  94                  const SMDS_MeshNode* theNode3,
  95                  const SMDS_MeshNode* theNode4);
  96
  97   /**
  98    * Special function for creation only quandrangle faces
  99    */
 100   bool ComputeQuadPref(SMESH_Mesh& aMesh,
 101                        const TopoDS_Shape& aShape,
 102                        FaceQuadStruct* quad);
 103
 104   bool EvaluateQuadPref(SMESH_Mesh& aMesh,
 105                         const TopoDS_Shape& aShape,
 106                         std::vector<int>& aNbNodes,
 107                         MapShapeNbElems& aResMap,
 108                         bool IsQuadratic);
 109
 110   UVPtStruct* LoadEdgePoints2(SMESH_Mesh& aMesh,
 111                               const TopoDS_Face& F, const TopoDS_Edge& E,
 112                               bool IsReverse);
 113
 114   UVPtStruct* LoadEdgePoints(SMESH_Mesh& aMesh,
 115                              const TopoDS_Face& F, const TopoDS_Edge& E,
 116                              double first, double last);
 117
 118   UVPtStruct* MakeEdgePoints(SMESH_Mesh& aMesh,
 119                              const TopoDS_Face& F, const TopoDS_Edge& E,
 120                              double first, double last, int nb_segm);
 121
 122   // true if QuadranglePreference hypothesis is assigned that forces
 123   // construction of quadrangles if the number of nodes on opposite edges
 124   // is not the same in the case where the global number of nodes on edges is even
 125   bool myQuadranglePreference;
 126
 127   bool myTrianglePreference;
 128
 129   SMESH_MesherHelper* myTool; // tool for working with quadratic elements
 130 };
 131
 132 #endif