1 // Copyright (C) 2007-2016 CEA/DEN, EDF R&D, OPEN CASCADE
3 // This library is free software; you can redistribute it and/or
4 // modify it under the terms of the GNU Lesser General Public
5 // License as published by the Free Software Foundation; either
6 // version 2.1 of the License, or (at your option) any later version.
8 // This library is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 // Lesser General Public License for more details.
13 // You should have received a copy of the GNU Lesser General Public
14 // License along with this library; if not, write to the Free Software
15 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
20 // NETGENPlugin : C++ implementation
21 // File : NETGENPlugin_SimpleHypothesis_2D.cxx
22 // Author : Edward AGAPOV
24 //=============================================================================
26 #include "NETGENPlugin_SimpleHypothesis_2D.hxx"
27 #include "NETGENPlugin_Hypothesis.hxx"
29 #include <SMESHDS_SubMesh.hxx>
30 #include <SMESH_ControlsDef.hxx>
31 #include <SMESH_Mesh.hxx>
32 #include <SMESH_subMesh.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()),
54 _name = "NETGEN_SimpleParameters_2D";
58 //=============================================================================
62 //=============================================================================
63 void NETGENPlugin_SimpleHypothesis_2D::SetNumberOfSegments(int nb) throw (SALOME_Exception)
66 throw SALOME_Exception("Number of segments must be positive");
67 if (nb != _nbSegments)
70 if ( _nbSegments ) _segmentLength = 0.;
71 NotifySubMeshesHypothesisModification();
75 //=============================================================================
79 //=============================================================================
80 void NETGENPlugin_SimpleHypothesis_2D::SetLocalLength(double segmentLength)
81 throw (SALOME_Exception)
83 if ( segmentLength < DBL_MIN )
84 throw SALOME_Exception("segment length must be more than zero");
85 if (segmentLength != _segmentLength)
87 _segmentLength = segmentLength;
88 if ( _segmentLength > DBL_MIN ) _nbSegments = 0;
89 NotifySubMeshesHypothesisModification();
93 //=============================================================================
97 //=============================================================================
98 void NETGENPlugin_SimpleHypothesis_2D::LengthFromEdges()
100 if (_area > DBL_MIN )
103 NotifySubMeshesHypothesisModification();
107 //=============================================================================
111 //=============================================================================
112 void NETGENPlugin_SimpleHypothesis_2D::SetMaxElementArea(double area)
114 if ( area < DBL_MIN )
119 NotifySubMeshesHypothesisModification();
123 //=======================================================================
124 //function : SetAllowQuadrangles
125 //purpose : Enables/disables generation of quadrangular faces
126 //=======================================================================
128 void NETGENPlugin_SimpleHypothesis_2D::SetAllowQuadrangles(bool toAllow)
130 if ( _allowQuad != toAllow )
132 _allowQuad = toAllow;
133 NotifySubMeshesHypothesisModification();
137 //=======================================================================
138 //function : GetAllowQuadrangles
139 //purpose : Returns true if generation of quadrangular faces is enabled
140 //=======================================================================
142 bool NETGENPlugin_SimpleHypothesis_2D::GetAllowQuadrangles() const
147 //=============================================================================
151 //=============================================================================
152 ostream & NETGENPlugin_SimpleHypothesis_2D::SaveTo(ostream & save)
154 save << _nbSegments << " " << _segmentLength << " " << _area << " " << _allowQuad;
159 //=============================================================================
163 //=============================================================================
164 istream & NETGENPlugin_SimpleHypothesis_2D::LoadFrom(istream & load)
169 isOK = static_cast<bool>(load >> val);
171 _nbSegments = (int) val;
173 load.clear(ios::badbit | load.rdstate());
175 isOK = static_cast<bool>(load >> val);
177 _segmentLength = val;
179 load.clear(ios::badbit | load.rdstate());
181 isOK = static_cast<bool>(load >> val);
185 load.clear(ios::badbit | load.rdstate());
192 //================================================================================
194 * \brief Does nothing
195 * \param theMesh - the built mesh
196 * \param theShape - the geometry of interest
197 * \retval bool - always false
199 //================================================================================
200 bool NETGENPlugin_SimpleHypothesis_2D::SetParametersByMesh(const SMESH_Mesh* theMesh,
201 const TopoDS_Shape& theShape)
203 // Find out nb of segments.
204 int nbSeg = 0, nbEdges = 0;
205 TopExp_Explorer exp( theShape, TopAbs_EDGE );
206 for ( ; exp.More(); exp.Next() ) {
207 SMESH_subMesh* sm = theMesh->GetSubMeshContaining( exp.Current() );
208 if ( sm && !sm->IsEmpty() ) {
209 nbSeg += sm->GetSubMeshDS()->NbElements();
214 _nbSegments = nbSeg / nbEdges;
216 // Find out max face area
218 SMESH::Controls::Area areaControl;
219 SMESH::Controls::TSequenceOfXYZ nodesCoords;
220 const int nbFacesToCheck = 100;
221 for ( exp.Init( theShape, TopAbs_FACE ); exp.More(); exp.Next() ) {
222 SMESH_subMesh* sm = theMesh->GetSubMeshContaining( exp.Current() );
223 if ( sm && !sm->IsEmpty() ) {
224 SMDS_ElemIteratorPtr fIt = sm->GetSubMeshDS()->GetElements();
225 int nbCheckedFaces = 0;
226 while ( fIt->more() && nbCheckedFaces++ < nbFacesToCheck ) {
227 const SMDS_MeshElement* elem = fIt->next();
228 areaControl.GetPoints( elem, nodesCoords );
229 _area = max( _area, areaControl.GetValue( nodesCoords ));
236 //================================================================================
238 * \brief Initialize my parameter values by default parameters.
239 * \retval bool - true if parameter values have been successfully defined
241 //================================================================================
243 bool NETGENPlugin_SimpleHypothesis_2D::SetParametersByDefaults(const TDefaults& dflts,
244 const SMESH_Mesh* /*theMesh*/)
246 _nbSegments = dflts._nbSegments;
247 _segmentLength = dflts._elemLength;
248 return _nbSegments && _segmentLength > 0;