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_Algo.hxx"
  31 #include "SMESH_ProxyMesh.hxx"
  32 #include "SMESH_StdMeshers.hxx"
  33 #include "StdMeshers_QuadrangleParams.hxx"
  34
  35 #include <TopoDS_Face.hxx>
  36
  37 class SMDS_MeshNode;
  38 class SMESH_Mesh;
  39 class SMESH_MesherHelper;
  40 class SMESH_ProxyMesh;
  41 class StdMeshers_FaceSide;
  42 struct uvPtStruct;
  43
  44
  45 enum TSideID { QUAD_BOTTOM_SIDE=0, QUAD_RIGHT_SIDE, QUAD_TOP_SIDE, QUAD_LEFT_SIDE, NB_QUAD_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 an opposite one
  52   UVPtStruct* uv_grid;
  53   TopoDS_Face face;
  54   ~faceQuadStruct();
  55   void shift( size_t nb, bool keepUnitOri );
  56   typedef boost::shared_ptr<faceQuadStruct> Ptr;
  57 } FaceQuadStruct;
  58
  59 class STDMESHERS_EXPORT StdMeshers_Quadrangle_2D: public SMESH_2D_Algo
  60 {
  61 public:
  62   StdMeshers_Quadrangle_2D(int hypId, int studyId, SMESH_Gen* gen);
  63   virtual ~StdMeshers_Quadrangle_2D();
  64
  65   virtual bool CheckHypothesis(SMESH_Mesh& aMesh,
  66                                const TopoDS_Shape& aShape,
  67                                SMESH_Hypothesis::Hypothesis_Status& aStatus);
  68
  69   virtual bool Compute(SMESH_Mesh& aMesh,
  70                        const TopoDS_Shape& aShape);
  71
  72   virtual bool Evaluate(SMESH_Mesh & aMesh, const TopoDS_Shape & aShape,
  73                         MapShapeNbElems& aResMap);
  74
  75   FaceQuadStruct::Ptr CheckAnd2Dcompute(SMESH_Mesh& aMesh,
  76                                         const TopoDS_Shape& aShape,
  77                                         const bool CreateQuadratic);
  78
  79   FaceQuadStruct::Ptr CheckNbEdges(SMESH_Mesh& aMesh,
  80                                    const TopoDS_Shape& aShape);
  81
  82 protected:
  83
  84   bool CheckNbEdgesForEvaluate(SMESH_Mesh& aMesh,
  85                                const TopoDS_Shape & aShape,
  86                                MapShapeNbElems& aResMap,
  87                                std::vector<int>& aNbNodes,
  88                                bool& IsQuadratic);
  89
  90   bool SetNormalizedGrid(SMESH_Mesh&          aMesh,
  91                          const TopoDS_Shape&  aShape,
  92                          FaceQuadStruct::Ptr& quad);
  93
  94   void SplitQuad(SMESHDS_Mesh *theMeshDS,
  95                  const int theFaceID,
  96                  const SMDS_MeshNode* theNode1,
  97                  const SMDS_MeshNode* theNode2,
  98                  const SMDS_MeshNode* theNode3,
  99                  const SMDS_MeshNode* theNode4);
 100
 101   bool ComputeQuadPref(SMESH_Mesh&         aMesh,
 102                        const TopoDS_Shape& aShape,
 103                        FaceQuadStruct::Ptr 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   bool ComputeReduced (SMESH_Mesh&         aMesh,
 112                        const TopoDS_Shape& aShape,
 113                        FaceQuadStruct::Ptr quad);
 114
 115   void UpdateDegenUV(FaceQuadStruct::Ptr quad);
 116
 117   void Smooth (FaceQuadStruct::Ptr quad);
 118
 119
 120   // true if QuadranglePreference hypothesis is assigned that forces
 121   // construction of quadrangles if the number of nodes on opposite edges
 122   // is not the same in the case where the global number of nodes on edges
 123   // is even
 124   bool myQuadranglePreference;
 125
 126   bool myTrianglePreference;
 127
 128   int  myTriaVertexID;
 129
 130   bool myNeedSmooth;
 131
 132   StdMeshers_QuadType  myQuadType;
 133
 134   SMESH_MesherHelper*  myHelper; // tool for working with quadratic elements
 135
 136   SMESH_ProxyMesh::Ptr myProxyMesh;
 137
 138   FaceQuadStruct::Ptr  myQuadStruct;
 139 };
 140
 141 #endif