smesh/src/StdMeshers/StdMeshers_StartEndLength.cxx

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// Copyright (C) 2007-2014 CEA/DEN, EDF R&D, OPEN CASCADE
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//
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// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
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//
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// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
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// version 2.1 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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//
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// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
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//
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// SMESH StdMeshers_StartEndLength : implementaion of SMESH idl descriptions
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// File : StdMeshers_StartEndLength.cxx
// Module : SMESH
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//
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#include "StdMeshers_StartEndLength.hxx"
#include "SMESH_Algo.hxx"
#include "SMESH_Mesh.hxx"
#include <BRep_Tool.hxx>
#include <GCPnts_AbscissaPoint.hxx>
#include <GeomAdaptor_Curve.hxx>
#include <Geom_Curve.hxx>
#include <TopExp.hxx>
#include <TopLoc_Location.hxx>
#include <TopTools_IndexedMapOfShape.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Edge.hxx>
using namespace std;
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//=============================================================================
/*!
*
*/
//=============================================================================
StdMeshers_StartEndLength::StdMeshers_StartEndLength(int hypId,
int studyId,
SMESH_Gen * gen)
:SMESH_Hypothesis(hypId, studyId, gen)
{
_begLength = 1.;
_endLength = 10.;
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_name = "StartEndLength";
_param_algo_dim = 1; // is used by SMESH_Regular_1D
}
//=============================================================================
/*!
*
*/
//=============================================================================
StdMeshers_StartEndLength::~StdMeshers_StartEndLength()
{
}
//=============================================================================
/*!
*
*/
//=============================================================================
void StdMeshers_StartEndLength::SetLength(double length, bool isStartLength)
throw(SALOME_Exception)
{
if ( (isStartLength ? _begLength : _endLength) != length ) {
if (length <= 0)
throw SALOME_Exception(LOCALIZED("length must be positive"));
if ( isStartLength )
_begLength = length;
else
_endLength = length;
NotifySubMeshesHypothesisModification();
}
}
//=============================================================================
/*!
*
*/
//=============================================================================
double StdMeshers_StartEndLength::GetLength(bool isStartLength) const
{
return isStartLength ? _begLength : _endLength;
}
//=============================================================================
/*!
*
*/
//=============================================================================
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void StdMeshers_StartEndLength::SetReversedEdges( std::vector<int>& ids )
{
if ( ids != _edgeIDs ) {
_edgeIDs = ids;
NotifySubMeshesHypothesisModification();
}
}
//=============================================================================
/*!
*
*/
//=============================================================================
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ostream & StdMeshers_StartEndLength::SaveTo(ostream & save)
{
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int listSize = _edgeIDs.size();
save << _begLength << " " << _endLength << " " << listSize;
if ( listSize > 0 ) {
for ( int i = 0; i < listSize; i++) {
save << " " << _edgeIDs[i];
}
save << " " << _objEntry;
}
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return save;
}
//=============================================================================
/*!
*
*/
//=============================================================================
istream & StdMeshers_StartEndLength::LoadFrom(istream & load)
{
bool isOK = true;
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int intVal;
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isOK = (load >> _begLength);
if (!isOK)
load.clear(ios::badbit | load.rdstate());
isOK = (load >> _endLength);
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if (!isOK)
load.clear(ios::badbit | load.rdstate());
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isOK = (load >> intVal);
if (isOK && intVal > 0) {
_edgeIDs.reserve( intVal );
for (int i = 0; i < _edgeIDs.capacity() && isOK; i++) {
isOK = (load >> intVal);
if ( isOK ) _edgeIDs.push_back( intVal );
}
isOK = (load >> _objEntry);
}
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return load;
}
//=============================================================================
/*!
*
*/
//=============================================================================
ostream & operator <<(ostream & save, StdMeshers_StartEndLength & hyp)
{
return hyp.SaveTo( save );
}
//=============================================================================
/*!
*
*/
//=============================================================================
istream & operator >>(istream & load, StdMeshers_StartEndLength & hyp)
{
return hyp.LoadFrom( load );
}
//================================================================================
/*!
* \brief Initialize start and end length by the mesh built on the geometry
* \param theMesh - the built mesh
* \param theShape - the geometry of interest
* \retval bool - true if parameter values have been successfully defined
*/
//================================================================================
bool StdMeshers_StartEndLength::SetParametersByMesh(const SMESH_Mesh* theMesh,
const TopoDS_Shape& theShape)
{
if ( !theMesh || theShape.IsNull() )
return false;
_begLength = _endLength = 0.;
Standard_Real UMin, UMax;
TopLoc_Location L;
int nbEdges = 0;
TopTools_IndexedMapOfShape edgeMap;
TopExp::MapShapes( theShape, TopAbs_EDGE, edgeMap );
for ( int i = 1; i <= edgeMap.Extent(); ++i )
{
const TopoDS_Edge& edge = TopoDS::Edge( edgeMap( i ));
Handle(Geom_Curve) C = BRep_Tool::Curve(edge, L, UMin, UMax);
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GeomAdaptor_Curve AdaptCurve(C, UMin, UMax);
vector< double > params;
SMESHDS_Mesh* aMeshDS = const_cast< SMESH_Mesh* >( theMesh )->GetMeshDS();
if ( SMESH_Algo::GetNodeParamOnEdge( aMeshDS, edge, params ))
{
nbEdges++;
_begLength += GCPnts_AbscissaPoint::Length( AdaptCurve, params[0], params[1]);
int nb = params.size();
_endLength += GCPnts_AbscissaPoint::Length( AdaptCurve, params[nb-2], params[nb-1]);
}
}
if ( nbEdges ) {
_begLength /= nbEdges;
_endLength /= nbEdges;
}
return nbEdges;
}
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//================================================================================
/*!
* \brief Initialize my parameter values by default parameters.
* \retval bool - true if parameter values have been successfully defined
*/
//================================================================================
bool StdMeshers_StartEndLength::SetParametersByDefaults(const TDefaults& dflts,
const SMESH_Mesh* /*theMesh*/)
{
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return (_begLength = _endLength = dflts._elemLength );
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}