1 // Copyright (C) 2007-2008 CEA/DEN, EDF R&D, OPEN CASCADE
3 // Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
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.
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.
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
20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
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
29 #ifndef _SMESH_QUADRANGLE_2D_HXX_
30 #define _SMESH_QUADRANGLE_2D_HXX_
32 #include "SMESH_StdMeshers.hxx"
34 #include "SMESH_2D_Algo.hxx"
35 #include "Utils_SALOME_Exception.hxx"
38 class SMESH_MesherHelper;
39 class StdMeshers_FaceSide;
43 enum TSideID { BOTTOM_SIDE=0, RIGHT_SIDE, TOP_SIDE, LEFT_SIDE, NB_SIDES };
45 typedef uvPtStruct UVPtStruct;
46 typedef struct faceQuadStruct
48 std::vector< StdMeshers_FaceSide*> side;
49 bool isEdgeOut[4]; // true, if an edge has more nodes, than the opposite
54 class STDMESHERS_EXPORT StdMeshers_Quadrangle_2D: public SMESH_2D_Algo
57 StdMeshers_Quadrangle_2D(int hypId, int studyId, SMESH_Gen* gen);
58 virtual ~StdMeshers_Quadrangle_2D();
60 virtual bool CheckHypothesis(SMESH_Mesh& aMesh,
61 const TopoDS_Shape& aShape,
62 SMESH_Hypothesis::Hypothesis_Status& aStatus);
64 virtual bool Compute(SMESH_Mesh& aMesh,
65 const TopoDS_Shape& aShape);
67 FaceQuadStruct* CheckAnd2Dcompute(SMESH_Mesh& aMesh,
68 const TopoDS_Shape& aShape,
69 const bool CreateQuadratic);
73 FaceQuadStruct* CheckNbEdges(SMESH_Mesh& aMesh,
74 const TopoDS_Shape& aShape);
76 bool SetNormalizedGrid(SMESH_Mesh& aMesh,
77 const TopoDS_Shape& aShape,
78 FaceQuadStruct*& quad);
80 void SplitQuad(SMESHDS_Mesh *theMeshDS,
82 const SMDS_MeshNode* theNode1,
83 const SMDS_MeshNode* theNode2,
84 const SMDS_MeshNode* theNode3,
85 const SMDS_MeshNode* theNode4);
88 * Special function for creation only quandrangle faces
90 bool ComputeQuadPref(SMESH_Mesh& aMesh,
91 const TopoDS_Shape& aShape,
92 FaceQuadStruct* quad);
94 UVPtStruct* LoadEdgePoints2(SMESH_Mesh& aMesh,
95 const TopoDS_Face& F, const TopoDS_Edge& E,
98 UVPtStruct* LoadEdgePoints(SMESH_Mesh& aMesh,
99 const TopoDS_Face& F, const TopoDS_Edge& E,
100 double first, double last);
102 UVPtStruct* MakeEdgePoints(SMESH_Mesh& aMesh,
103 const TopoDS_Face& F, const TopoDS_Edge& E,
104 double first, double last, int nb_segm);
106 // true if QuadranglePreference hypothesis is assigned that forces
107 // construction of quadrangles if the number of nodes on opposite edges
108 // is not the same in the case where the global number of nodes on edges is even
109 bool myQuadranglePreference;
111 bool myTrianglePreference;
114 SMESH_MesherHelper* myTool; // tool for working with quadratic elements