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.opencascade.org/SALOME/ or email : webmaster.salome@opencascade.org
24 // File : SMESH_Algo.hxx
25 // Author : Paul RASCLE, EDF
29 #ifndef _SMESH_ALGO_HXX_
30 #define _SMESH_ALGO_HXX_
32 #include "SMESH_Hypothesis.hxx"
34 #include <TopoDS_Shape.hxx>
35 #include <TopoDS_Edge.hxx>
45 class SMESH_HypoFilter;
51 class SMESH_Algo:public SMESH_Hypothesis
54 SMESH_Algo(int hypId, int studyId, SMESH_Gen * gen);
55 virtual ~ SMESH_Algo();
57 const std::vector < std::string > &GetCompatibleHypothesis();
58 virtual bool CheckHypothesis(SMESH_Mesh& aMesh,
59 const TopoDS_Shape& aShape,
60 SMESH_Hypothesis::Hypothesis_Status& aStatus) = 0;
62 virtual bool Compute(SMESH_Mesh & aMesh, const TopoDS_Shape & aShape) = 0;
64 virtual const std::list <const SMESHDS_Hypothesis *> &
65 GetUsedHypothesis(SMESH_Mesh & aMesh,
66 const TopoDS_Shape & aShape,
67 const bool ignoreAuxiliary=true);
69 const list <const SMESHDS_Hypothesis *> &
70 GetAppliedHypothesis(SMESH_Mesh & aMesh,
71 const TopoDS_Shape & aShape,
72 const bool ignoreAuxiliary=true);
74 static double EdgeLength(const TopoDS_Edge & E);
78 * \brief Make filter recognize only compatible hypotheses
79 * \param theFilter - the filter to initialize
80 * \param ignoreAuxiliary - make filter ignore compatible auxiliary hypotheses
81 * \retval bool - true if the algo has compatible hypotheses
83 bool InitCompatibleHypoFilter( SMESH_HypoFilter & theFilter,
84 const bool ignoreAuxiliary) const;
87 * \brief Fill vector of node parameters on geometrical edge, including vertex nodes
88 * \param theMesh - The mesh containing nodes
89 * \param theEdge - The geometrical edge of interest
90 * \param theParams - The resulting vector of sorted node parameters
91 * \retval bool - false if not all parameters are OK
93 static bool GetNodeParamOnEdge(const SMESHDS_Mesh* theMesh,
94 const TopoDS_Edge& theEdge,
95 std::vector< double > & theParams);
97 //static bool GetSegmentLengths();
100 * \brief Find out elements orientation on a geometrical face
101 * \param theFace - The face correctly oriented in the shape being meshed
102 * \param theMeshDS - The mesh data structure
103 * \retval bool - true if the face normal and the normal of first element
104 * in the correspoding submesh point in different directions
106 static bool IsReversedSubMesh (const TopoDS_Face& theFace,
107 SMESHDS_Mesh* theMeshDS);
110 * \brief Initialize my parameter values by the mesh built on the geometry
111 * \param theMesh - the built mesh
112 * \param theShape - the geometry of interest
113 * \retval bool - true if parameter values have been successfully defined
115 * Just return false as the algorithm does not hold parameters values
117 virtual bool SetParametersByMesh(const SMESH_Mesh* theMesh, const TopoDS_Shape& theShape);
122 // SMESH_Hypothesis::GetDim();
123 // 1 - dimention of target mesh
125 bool OnlyUnaryInput() const { return _onlyUnaryInput; }
126 // 2 - is collection of tesselatable shapes inacceptable as input;
127 // "collection" means a shape containing shapes of dim equal
129 // Algo which can process a collection shape should expect
130 // an input temporary shape that is neither MainShape nor
133 bool NeedDescretBoundary() const { return _requireDescretBoundary; }
134 // 3 - is a Dim-1 mesh prerequisite
137 bool _onlyUnaryInput;
138 bool _requireDescretBoundary;
139 std::vector<std::string> _compatibleHypothesis;
140 std::list<const SMESHDS_Hypothesis *> _appliedHypList;
141 std::list<const SMESHDS_Hypothesis *> _usedHypList;
143 // quadratic mesh creation required