1 // SMESH SMESH : implementaion of SMESH idl descriptions
3 // Copyright (C) 2003 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
24 // File : StdMeshers_Quadrangle_2D.hxx
25 // Moved here from SMESH_Quadrangle_2D.hxx
26 // Author : Paul RASCLE, EDF
30 #ifndef _SMESH_QUADRANGLE_2D_HXX_
31 #define _SMESH_QUADRANGLE_2D_HXX_
33 #include "SMESH_StdMeshers.hxx"
35 #include "SMESH_2D_Algo.hxx"
36 #include "Utils_SALOME_Exception.hxx"
39 class SMESH_MesherHelper;
40 class StdMeshers_FaceSide;
44 enum TSideID { BOTTOM_SIDE=0, RIGHT_SIDE, TOP_SIDE, LEFT_SIDE, NB_SIDES };
46 typedef uvPtStruct UVPtStruct;
47 typedef struct faceQuadStruct
49 vector< StdMeshers_FaceSide*> side;
50 bool isEdgeOut[4]; // true, if an edge has more nodes, than the opposite
55 class STDMESHERS_EXPORT StdMeshers_Quadrangle_2D: public SMESH_2D_Algo
58 StdMeshers_Quadrangle_2D(int hypId, int studyId, SMESH_Gen* gen);
59 virtual ~StdMeshers_Quadrangle_2D();
61 virtual bool CheckHypothesis(SMESH_Mesh& aMesh,
62 const TopoDS_Shape& aShape,
63 SMESH_Hypothesis::Hypothesis_Status& aStatus);
65 virtual bool Compute(SMESH_Mesh& aMesh,
66 const TopoDS_Shape& aShape);
68 FaceQuadStruct* CheckAnd2Dcompute(SMESH_Mesh& aMesh,
69 const TopoDS_Shape& aShape,
70 const bool CreateQuadratic);
74 FaceQuadStruct* CheckNbEdges(SMESH_Mesh& aMesh,
75 const TopoDS_Shape& aShape);
77 bool SetNormalizedGrid(SMESH_Mesh& aMesh,
78 const TopoDS_Shape& aShape,
79 FaceQuadStruct*& quad);
81 void SplitQuad(SMESHDS_Mesh *theMeshDS,
83 const SMDS_MeshNode* theNode1,
84 const SMDS_MeshNode* theNode2,
85 const SMDS_MeshNode* theNode3,
86 const SMDS_MeshNode* theNode4);
89 * Special function for creation only quandrangle faces
91 bool ComputeQuadPref(SMESH_Mesh& aMesh,
92 const TopoDS_Shape& aShape,
93 FaceQuadStruct* quad);
95 UVPtStruct* LoadEdgePoints2(SMESH_Mesh& aMesh,
96 const TopoDS_Face& F, const TopoDS_Edge& E,
99 UVPtStruct* LoadEdgePoints(SMESH_Mesh& aMesh,
100 const TopoDS_Face& F, const TopoDS_Edge& E,
101 double first, double last);
103 UVPtStruct* MakeEdgePoints(SMESH_Mesh& aMesh,
104 const TopoDS_Face& F, const TopoDS_Edge& E,
105 double first, double last, int nb_segm);
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;
112 bool myTrianglePreference;
115 SMESH_MesherHelper* myTool; // tool for working with quadratic elements