src/StdMeshers/StdMeshers_Quadrangle_2D.hxx

   1 //  SMESH SMESH : implementaion of SMESH idl descriptions
   2 //
   3 //  Copyright (C) 2003  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 //
  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 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   FaceQuadStruct* CheckAnd2Dcompute(SMESH_Mesh& aMesh,
  69                                     const TopoDS_Shape& aShape,
  70                                     const bool CreateQuadratic);
  71
  72 protected:
  73
  74   FaceQuadStruct* CheckNbEdges(SMESH_Mesh& aMesh,
  75                                const TopoDS_Shape& aShape);
  76
  77   bool SetNormalizedGrid(SMESH_Mesh& aMesh,
  78                          const TopoDS_Shape& aShape,
  79                          FaceQuadStruct*& quad);
  80
  81   void SplitQuad(SMESHDS_Mesh *theMeshDS,
  82                  const int theFaceID,
  83                  const SMDS_MeshNode* theNode1,
  84                  const SMDS_MeshNode* theNode2,
  85                  const SMDS_MeshNode* theNode3,
  86                  const SMDS_MeshNode* theNode4);
  87
  88   /**
  89    * Special function for creation only quandrangle faces
  90    */
  91   bool ComputeQuadPref(SMESH_Mesh& aMesh,
  92                        const TopoDS_Shape& aShape,
  93                        FaceQuadStruct* quad);
  94
  95   UVPtStruct* LoadEdgePoints2(SMESH_Mesh& aMesh,
  96                               const TopoDS_Face& F, const TopoDS_Edge& E,
  97                               bool IsReverse);
  98
  99   UVPtStruct* LoadEdgePoints(SMESH_Mesh& aMesh,
 100                              const TopoDS_Face& F, const TopoDS_Edge& E,
 101                              double first, double last);
 102
 103   UVPtStruct* MakeEdgePoints(SMESH_Mesh& aMesh,
 104                              const TopoDS_Face& F, const TopoDS_Edge& E,
 105                              double first, double last, int nb_segm);
 106
 107   // true if QuadranglePreference hypothesis is assigned that forces
 108   // construction of quadrangles if the number of nodes on opposite edges
 109   // is not the same in the case where the global number of nodes on edges is even
 110   bool myQuadranglePreference;
 111
 112   bool myTrianglePreference;
 113
 114
 115   SMESH_MesherHelper* myTool; // tool for working with quadratic elements
 116 };
 117
 118 #endif