1 // NETGENPlugin : C++ implementation
3 // Copyright (C) 2006 OPEN CASCADE, CEA/DEN, EDF R&D
5 // This library is free software; you can redistribute it and/or
6 // modify it under the terms of the GNU Lesser General Public
7 // License as published by the Free Software Foundation; either
8 // version 2.1 of the License.
10 // This library is distributed in the hope that it will be useful,
11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 // Lesser General Public License for more details.
15 // You should have received a copy of the GNU Lesser General Public
16 // License along with this library; if not, write to the Free Software
17 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
22 // File : NETGENPlugin_SimpleHypothesis_2D.cxx
23 // Author : Edward AGAPOV
25 //=============================================================================
27 #include "NETGENPlugin_SimpleHypothesis_2D.hxx"
28 #include "NETGENPlugin_Hypothesis.hxx"
30 #include <SMESH_Mesh.hxx>
31 #include <SMESH_subMesh.hxx>
32 #include <SMESH_ControlsDef.hxx>
34 #include <TopExp_Explorer.hxx>
36 #include <utilities.h>
40 //=============================================================================
44 //=============================================================================
45 NETGENPlugin_SimpleHypothesis_2D::NETGENPlugin_SimpleHypothesis_2D (int hypId,
48 : SMESH_Hypothesis(hypId, studyId, gen),
49 _nbSegments ((int)NETGENPlugin_Hypothesis::GetDefaultNbSegPerEdge()),
53 _name = "NETGEN_SimpleParameters_2D";
57 //=============================================================================
61 //=============================================================================
62 void NETGENPlugin_SimpleHypothesis_2D::SetNumberOfSegments(int nb) throw (SALOME_Exception)
65 throw SALOME_Exception("Number of segments must be positive");
66 if (nb != _nbSegments)
69 if ( _nbSegments ) _segmentLength = 0.;
70 NotifySubMeshesHypothesisModification();
74 //=============================================================================
78 //=============================================================================
79 void NETGENPlugin_SimpleHypothesis_2D::SetLocalLength(double segmentLength)
80 throw (SALOME_Exception)
82 if ( segmentLength < DBL_MIN )
83 throw SALOME_Exception("segment length must be more than zero");
84 if (segmentLength != _segmentLength)
86 _segmentLength = segmentLength;
87 if ( _segmentLength > DBL_MIN ) _nbSegments = 0;
88 NotifySubMeshesHypothesisModification();
92 //=============================================================================
96 //=============================================================================
97 void NETGENPlugin_SimpleHypothesis_2D::LengthFromEdges()
102 NotifySubMeshesHypothesisModification();
106 //=============================================================================
110 //=============================================================================
111 void NETGENPlugin_SimpleHypothesis_2D::SetMaxElementArea(double area)
113 if ( area < DBL_MIN )
118 NotifySubMeshesHypothesisModification();
122 //=============================================================================
126 //=============================================================================
127 ostream & NETGENPlugin_SimpleHypothesis_2D::SaveTo(ostream & save)
129 save << _nbSegments << " " << _segmentLength << " " << _area;
134 //=============================================================================
138 //=============================================================================
139 istream & NETGENPlugin_SimpleHypothesis_2D::LoadFrom(istream & load)
144 isOK = (load >> val);
146 _nbSegments = (int) val;
148 load.clear(ios::badbit | load.rdstate());
150 isOK = (load >> val);
152 _segmentLength = val;
154 load.clear(ios::badbit | load.rdstate());
156 isOK = (load >> val);
160 load.clear(ios::badbit | load.rdstate());
165 //================================================================================
167 * \brief Does nothing
168 * \param theMesh - the built mesh
169 * \param theShape - the geometry of interest
170 * \retval bool - always false
172 //================================================================================
173 bool NETGENPlugin_SimpleHypothesis_2D::SetParametersByMesh(const SMESH_Mesh* theMesh,
174 const TopoDS_Shape& theShape)
176 // Find out nb of segments.
177 int nbSeg = 0, nbEdges = 0;
178 TopExp_Explorer exp( theShape, TopAbs_EDGE );
179 for ( ; exp.More(); exp.Next() ) {
180 SMESH_subMesh* sm = theMesh->GetSubMeshContaining( exp.Current() );
181 if ( sm && !sm->IsEmpty() ) {
182 nbSeg += sm->GetSubMeshDS()->NbElements();
187 _nbSegments = nbSeg / nbEdges;
189 // Find out max face area
191 SMESH::Controls::Area areaControl;
192 SMESH::Controls::TSequenceOfXYZ nodesCoords;
193 const int nbFacesToCheck = 100;
194 for ( exp.Init( theShape, TopAbs_FACE ); exp.More(); exp.Next() ) {
195 SMESH_subMesh* sm = theMesh->GetSubMeshContaining( exp.Current() );
196 if ( sm && !sm->IsEmpty() ) {
197 SMDS_ElemIteratorPtr fIt = sm->GetSubMeshDS()->GetElements();
198 int nbCheckedFaces = 0;
199 while ( fIt->more() && nbCheckedFaces++ < nbFacesToCheck ) {
200 const SMDS_MeshElement* elem = fIt->next();
201 areaControl.GetPoints( elem, nodesCoords );
202 _area = max( _area, areaControl.GetValue( nodesCoords ));