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 //  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 "StdMeshers_QuadrangleParams.hxx"
  35
  36 #include "SMESH_2D_Algo.hxx"
  37 #include "Utils_SALOME_Exception.hxx"
  38
  39 class SMESH_Mesh;
  40 class SMESH_MesherHelper;
  41 class StdMeshers_FaceSide;
  42 class SMDS_MeshNode;
  43 struct uvPtStruct;
  44
  45
  46 enum TSideID { BOTTOM_SIDE=0, RIGHT_SIDE, TOP_SIDE, LEFT_SIDE, NB_SIDES };
  47
  48 typedef uvPtStruct UVPtStruct;
  49 typedef struct faceQuadStruct
  50 {
  51   std::vector< StdMeshers_FaceSide*> side;
  52   bool isEdgeOut[4]; // true, if an edge has more nodes, than the opposite
  53   UVPtStruct* uv_grid;
  54   TopoDS_Face face;
  55   ~faceQuadStruct();
  56 } FaceQuadStruct;
  57
  58 class STDMESHERS_EXPORT StdMeshers_Quadrangle_2D: public SMESH_2D_Algo
  59 {
  60 public:
  61   StdMeshers_Quadrangle_2D(int hypId, int studyId, SMESH_Gen* gen);
  62   virtual ~StdMeshers_Quadrangle_2D();
  63
  64   virtual bool CheckHypothesis(SMESH_Mesh& aMesh,
  65                                const TopoDS_Shape& aShape,
  66                                SMESH_Hypothesis::Hypothesis_Status& aStatus);
  67
  68   virtual bool Compute(SMESH_Mesh& aMesh,
  69                        const TopoDS_Shape& aShape);
  70
  71   virtual bool Evaluate(SMESH_Mesh & aMesh, const TopoDS_Shape & aShape,
  72                         MapShapeNbElems& aResMap);
  73
  74   FaceQuadStruct* CheckAnd2Dcompute(SMESH_Mesh& aMesh,
  75                                     const TopoDS_Shape& aShape,
  76                                     const bool CreateQuadratic);
  77
  78   FaceQuadStruct* CheckNbEdges(SMESH_Mesh& aMesh,
  79                                const TopoDS_Shape& aShape);
  80
  81 protected:
  82
  83   bool CheckNbEdgesForEvaluate(SMESH_Mesh& aMesh,
  84                                const TopoDS_Shape & aShape,
  85                                MapShapeNbElems& aResMap,
  86                                std::vector<int>& aNbNodes,
  87                                bool& IsQuadratic);
  88
  89   bool SetNormalizedGrid(SMESH_Mesh& aMesh,
  90                          const TopoDS_Shape& aShape,
  91                          FaceQuadStruct*& quad);
  92
  93   void SplitQuad(SMESHDS_Mesh *theMeshDS,
  94                  const int theFaceID,
  95                  const SMDS_MeshNode* theNode1,
  96                  const SMDS_MeshNode* theNode2,
  97                  const SMDS_MeshNode* theNode3,
  98                  const SMDS_MeshNode* theNode4);
  99
 100   /**
 101    * Special function for creation only quandrangle faces
 102    */
 103   bool ComputeQuadPref(SMESH_Mesh& aMesh,
 104                        const TopoDS_Shape& aShape,
 105                        FaceQuadStruct* quad);
 106
 107   bool EvaluateQuadPref(SMESH_Mesh& aMesh,
 108                         const TopoDS_Shape& aShape,
 109                         std::vector<int>& aNbNodes,
 110                         MapShapeNbElems& aResMap,
 111                         bool IsQuadratic);
 112
 113   UVPtStruct* LoadEdgePoints2(SMESH_Mesh& aMesh,
 114                               const TopoDS_Face& F, const TopoDS_Edge& E,
 115                               bool IsReverse);
 116
 117   UVPtStruct* LoadEdgePoints(SMESH_Mesh& aMesh,
 118                              const TopoDS_Face& F, const TopoDS_Edge& E,
 119                              double first, double last);
 120
 121   UVPtStruct* MakeEdgePoints(SMESH_Mesh& aMesh,
 122                              const TopoDS_Face& F, const TopoDS_Edge& E,
 123                              double first, double last, int nb_segm);
 124
 125   bool ComputeReduced (SMESH_Mesh& aMesh,
 126                        const TopoDS_Shape& aShape,
 127                        FaceQuadStruct* quad);
 128
 129   // true if QuadranglePreference hypothesis is assigned that forces
 130   // construction of quadrangles if the number of nodes on opposite edges
 131   // is not the same in the case where the global number of nodes on edges
 132   // is even
 133   bool myQuadranglePreference;
 134
 135   bool myTrianglePreference;
 136
 137   int myTriaVertexID;
 138
 139   StdMeshers_QuadType myQuadType;
 140
 141   SMESH_MesherHelper* myTool; // tool for working with quadratic elements
 142 };
 143
 144 #endif