1 // Copyright (C) 2007-2010 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
23 // SMESH SMESH : implementaion of SMESH idl descriptions
24 // File : StdMeshers_LocalLength.cxx
25 // Moved here from SMESH_LocalLength.cxx
26 // Author : Paul RASCLE, EDF
29 #include "StdMeshers_LocalLength.hxx"
31 #include "SMESH_Mesh.hxx"
32 #include "SMESH_Algo.hxx"
34 #include "utilities.h"
36 #include <BRep_Tool.hxx>
37 #include <GCPnts_AbscissaPoint.hxx>
38 #include <GeomAdaptor_Curve.hxx>
39 #include <Geom_Curve.hxx>
41 #include <TopLoc_Location.hxx>
42 #include <TopTools_IndexedMapOfShape.hxx>
44 #include <TopoDS_Edge.hxx>
45 #include <Precision.hxx>
49 //=============================================================================
53 //=============================================================================
55 StdMeshers_LocalLength::StdMeshers_LocalLength(int hypId, int studyId, SMESH_Gen * gen)
56 :SMESH_Hypothesis(hypId, studyId, gen)
59 _precision = Precision::Confusion();
60 _name = "LocalLength";
61 _param_algo_dim = 1; // is used by SMESH_Regular_1D
64 //=============================================================================
68 //=============================================================================
70 StdMeshers_LocalLength::~StdMeshers_LocalLength()
74 //=============================================================================
78 //=============================================================================
80 void StdMeshers_LocalLength::SetLength(double length) throw(SALOME_Exception)
82 double oldLength = _length;
84 throw SALOME_Exception(LOCALIZED("length must be positive"));
86 const double precision = 1e-7;
87 if (fabs(oldLength - _length) > precision)
88 NotifySubMeshesHypothesisModification();
91 //=============================================================================
95 //=============================================================================
97 double StdMeshers_LocalLength::GetLength() const
102 //=============================================================================
106 //=============================================================================
107 void StdMeshers_LocalLength::SetPrecision (double thePrecision) throw(SALOME_Exception)
109 double oldPrecision = _precision;
111 throw SALOME_Exception(LOCALIZED("precision cannot be negative"));
112 _precision = thePrecision;
113 const double precision = 1e-8;
114 if (fabs(oldPrecision - _precision) > precision)
115 NotifySubMeshesHypothesisModification();
118 //=============================================================================
122 //=============================================================================
123 double StdMeshers_LocalLength::GetPrecision() const
128 //=============================================================================
132 //=============================================================================
134 ostream & StdMeshers_LocalLength::SaveTo(ostream & save)
136 save << this->_length << " " << this->_precision;
140 //=============================================================================
144 //=============================================================================
146 istream & StdMeshers_LocalLength::LoadFrom(istream & load)
155 load.clear(ios::badbit | load.rdstate());
159 this->_precision = a;
162 load.clear(ios::badbit | load.rdstate());
163 // old format, without precision
170 //=============================================================================
174 //=============================================================================
176 ostream & operator <<(ostream & save, StdMeshers_LocalLength & hyp)
178 return hyp.SaveTo( save );
181 //=============================================================================
185 //=============================================================================
187 istream & operator >>(istream & load, StdMeshers_LocalLength & hyp)
189 return hyp.LoadFrom( load );
192 //================================================================================
194 * \brief Initialize segment length by the mesh built on the geometry
195 * \param theMesh - the built mesh
196 * \param theShape - the geometry of interest
197 * \retval bool - true if parameter values have been successfully defined
199 //================================================================================
201 bool StdMeshers_LocalLength::SetParametersByMesh(const SMESH_Mesh* theMesh,
202 const TopoDS_Shape& theShape)
204 if ( !theMesh || theShape.IsNull() )
209 Standard_Real UMin, UMax;
213 TopTools_IndexedMapOfShape edgeMap;
214 TopExp::MapShapes( theShape, TopAbs_EDGE, edgeMap );
215 for ( int iE = 1; iE <= edgeMap.Extent(); ++iE )
217 const TopoDS_Edge& edge = TopoDS::Edge( edgeMap( iE ));
218 Handle(Geom_Curve) C = BRep_Tool::Curve( edge, L, UMin, UMax );
219 GeomAdaptor_Curve AdaptCurve(C);
221 vector< double > params;
222 SMESHDS_Mesh* aMeshDS = const_cast< SMESH_Mesh* >( theMesh )->GetMeshDS();
223 if ( SMESH_Algo::GetNodeParamOnEdge( aMeshDS, edge, params ))
225 for ( int i = 1; i < params.size(); ++i )
226 _length += GCPnts_AbscissaPoint::Length( AdaptCurve, params[ i-1 ], params[ i ]);
227 nbEdges += params.size() - 1;
233 _precision = Precision::Confusion();
237 //================================================================================
239 * \brief Initialize my parameter values by default parameters.
240 * \retval bool - true if parameter values have been successfully defined
242 //================================================================================
244 bool StdMeshers_LocalLength::SetParametersByDefaults(const TDefaults& dflts,
245 const SMESH_Mesh* /*theMesh*/)
247 return ( _length = dflts._elemLength );