src/StdMeshers/StdMeshers_Quadrangle_2D.hxx

   1 // Copyright (C) 2007-2012  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 //  File   : StdMeshers_Quadrangle_2D.hxx
  23 //           Moved here from SMESH_Quadrangle_2D.hxx
  24 //  Author : Paul RASCLE, EDF
  25 //  Module : SMESH
  26
  27 #ifndef _SMESH_QUADRANGLE_2D_HXX_
  28 #define _SMESH_QUADRANGLE_2D_HXX_
  29
  30 #include "SMESH_StdMeshers.hxx"
  31
  32 #include "StdMeshers_QuadrangleParams.hxx"
  33
  34 #include "SMESH_Algo.hxx"
  35 #include "Utils_SALOME_Exception.hxx"
  36
  37 #include <TopoDS_Face.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   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   bool ComputeReduced (SMESH_Mesh& aMesh,
 111                        const TopoDS_Shape& aShape,
 112                        FaceQuadStruct* quad);
 113
 114   void UpdateDegenUV(FaceQuadStruct* quad);
 115
 116   void Smooth (FaceQuadStruct* quad);
 117
 118
 119   // true if QuadranglePreference hypothesis is assigned that forces
 120   // construction of quadrangles if the number of nodes on opposite edges
 121   // is not the same in the case where the global number of nodes on edges
 122   // is even
 123   bool myQuadranglePreference;
 124
 125   bool myTrianglePreference;
 126
 127   int myTriaVertexID;
 128
 129   StdMeshers_QuadType myQuadType;
 130
 131   SMESH_MesherHelper* myHelper; // tool for working with quadratic elements
 132
 133   bool myNeedSmooth;
 134 };
 135
 136 #endif