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smesh/src/StdMeshers/StdMeshers_BlockRenumber.cxx

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// Copyright (C) 2007-2020 CEA/DEN, EDF R&D, OPEN CASCADE
//
// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
//
// 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
// version 2.1 of the License, or (at your option) any later version.
//
// 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.
//
// 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
//
// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
//
// File : StdMeshers_BlockRenumber.cxx
// Author : Edward AGAPOV, OCC
// Module : SMESH
#include "StdMeshers_BlockRenumber.hxx"
#include "SMDS_EdgePosition.hxx"
#include "SMDS_FacePosition.hxx"
#include "SMESHDS_Mesh.hxx"
#include "SMESHDS_SubMesh.hxx"
#include "SMESH_Algo.hxx"
#include "SMESH_Mesh.hxx"
#include "SMESH_MesherHelper.hxx"
#include "SMESH_TryCatch.hxx"
#include <BRep_Tool.hxx>
#include <TopExp_Explorer.hxx>
#include <TopTools_MapOfShape.hxx>
#include <TopoDS.hxx>
#include <boost/archive/text_oarchive.hpp>
#include <boost/archive/text_iarchive.hpp>
//=============================================================================
/*!
* Constructor
*/
//=============================================================================
StdMeshers_BlockRenumber::StdMeshers_BlockRenumber(int hypId, SMESH_Gen * gen)
:SMESH_Hypothesis(hypId, gen)
{
_name = "BlockRenumber";
_param_algo_dim = 3; // is used by StdMeshers_Hexa_3D and StdMeshers_CompositeHexa_3D
}
//================================================================================
/*!
* \brief Set local CS of blocks
*/
//================================================================================
void StdMeshers_BlockRenumber::SetBlocksOrientation( std::vector< StdMeshers_BlockCS > & blockCS )
{
if ( _blockCS != blockCS )
{
NotifySubMeshesHypothesisModification();
_blockCS.swap( blockCS );
_solids2vertices.Clear();
}
}
//================================================================================
/*
* Return true and vertices if block orientation is defined for a given solid
*/
//================================================================================
bool StdMeshers_BlockRenumber::IsSolidIncluded( SMESH_Mesh& mesh,
const TopoDS_Shape& solid,
TopoDS_Vertex& vertex000,
TopoDS_Vertex& vertex001 ) const
{
bool result = false;
vertex000.Nullify();
vertex001.Nullify();
if ( _solids2vertices.IsEmpty() )
{
StdMeshers_BlockRenumber* me = const_cast<StdMeshers_BlockRenumber*>(this);
for ( StdMeshers_BlockCS& bcs : me->_blockCS )
{
TopoDS_Shape so = mesh.GetShapeByEntry( bcs._solid );
TopoDS_Shape s000 = mesh.GetShapeByEntry( bcs._vertex000 );
TopoDS_Shape s001 = mesh.GetShapeByEntry( bcs._vertex001 );
TopoDS_Vertex v000 = StdMeshers_RenumberHelper::GetVertexAtPoint( so, s000 );
TopoDS_Vertex v001 = StdMeshers_RenumberHelper::GetVertexAtPoint( so, s001 );
if ( !v000.IsNull() && !v001.IsNull() )
{
me->_solids2vertices.Bind( so, std::make_pair( v000, v001 ));
if ( so.IsSame( solid ))
{
result = true;
vertex000 = v000;
vertex001 = v001;
}
}
}
}
else if ( !solid.IsNull() )
{
if (( result = _solids2vertices.IsBound( solid )))
{
auto vvPairPtr = _solids2vertices.Seek( solid );
vertex000 = vvPairPtr->first;
vertex001 = vvPairPtr->second;
}
}
return result;
}
//=======================================================================
//function : CheckHypothesis
//purpose :
//=======================================================================
SMESH_ComputeErrorPtr StdMeshers_BlockRenumber::CheckHypothesis(SMESH_Mesh& aMesh,
const TopoDS_Shape& aShape) const
{
SMESH_Comment errorTxt;
for ( size_t i = 0; i < _blockCS.size() && errorTxt.empty(); ++i )
{
TopoDS_Shape solid = aMesh.GetShapeByEntry( _blockCS[i]._solid );
TopoDS_Shape v000 = aMesh.GetShapeByEntry( _blockCS[i]._vertex000 );
TopoDS_Shape v001 = aMesh.GetShapeByEntry( _blockCS[i]._vertex001 );
v000 = StdMeshers_RenumberHelper::GetVertexAtPoint( solid, v000 );
v001 = StdMeshers_RenumberHelper::GetVertexAtPoint( solid, v001 );
if ( solid.IsNull() || solid.ShapeType() != TopAbs_SOLID )
errorTxt << "Can't find a SOLID by entry '" << _blockCS[i]._solid << "'";
else if ( v000.IsNull() || v000.ShapeType() != TopAbs_VERTEX )
errorTxt << "Can't find a VERTEX by entry '" << _blockCS[i]._vertex000 << "'";
else if ( v001.IsNull() || v001.ShapeType() != TopAbs_VERTEX )
errorTxt << "Can't find a VERTEX by entry '" << _blockCS[i]._vertex001 << "'";
else if ( !SMESH_MesherHelper::IsSubShape( v000, solid ))
errorTxt << "VERTEX '" << _blockCS[i]._vertex001 << "' does not belong to SOLID '"
<< _blockCS[i]._solid << "'";
else if ( !SMESH_MesherHelper::IsSubShape( v001, solid ))
errorTxt << "VERTEX '" << _blockCS[i]._vertex001 << "' does not belong to SOLID '"
<< _blockCS[i]._solid << "'";
else if ( SMESH_MesherHelper::Count( solid, TopAbs_VERTEX, true ) == 8 &&
SMESH_MesherHelper::GetCommonAncestor( v000, v001, aMesh, TopAbs_EDGE ).IsNull() )
errorTxt << "Vertices '" << _blockCS[i]._vertex000 << "' and '" << _blockCS[i]._vertex001
<< "' are not connected by an edge";
}
SMESH_ComputeErrorPtr error;
if ( !errorTxt.empty() )
{
error = SMESH_ComputeError::New( COMPERR_BAD_PARMETERS,
SMESH_Comment("Renumber hypothesis: ") << errorTxt );
}
return error;
}
//=======================================================================
//function : StdMeshers_RenumberHelper
//purpose : constructor
//=======================================================================
StdMeshers_RenumberHelper::StdMeshers_RenumberHelper( SMESH_Mesh& mesh,
const StdMeshers_BlockRenumber* hyp)
: _mesh( &mesh ), _hyp( hyp ), _newOldNodes( 2, nullptr )
{
}
//=======================================================================
//function : GetVertex000
//purpose : Find default vertex at (0,0,0) local position
//=======================================================================
TopoDS_Vertex StdMeshers_RenumberHelper::GetVertex000( const TopTools_MapOfShape& cornerVertices )
{
TopoDS_Vertex v000;
if ( cornerVertices.Extent() < 8 )
return TopoDS_Vertex();
double minVal = DBL_MAX, minX = DBL_MAX, val;
for ( auto it = cornerVertices.cbegin(); it != cornerVertices.cend(); ++it )
{
gp_Pnt P = BRep_Tool::Pnt( TopoDS::Vertex( *it ));
val = P.X() + P.Y() + P.Z();
if ( val < minVal || ( val == minVal && P.X() < minX ))
{
v000 = TopoDS::Vertex( *it );
minVal = val;
minX = P.X();
}
}
return v000;
}
//=======================================================================
//function : GetVertex000
//purpose : Find default vertex at (0,0,0) local position
//=======================================================================
TopoDS_Vertex StdMeshers_RenumberHelper::GetVertexAtPoint( const TopoDS_Shape& solid,
const TopoDS_Shape& point )
{
if ( !solid.IsNull() && !point.IsNull() && point.ShapeType() == TopAbs_VERTEX )
{
gp_Pnt p = BRep_Tool::Pnt( TopoDS::Vertex( point ));
double tol = Precision::Confusion();
for ( TopExp_Explorer exp( solid, TopAbs_VERTEX ); exp.More(); exp.Next() )
{
const TopoDS_Vertex& v = TopoDS::Vertex( exp.Current() );
if ( v.IsSame( point ) || p.IsEqual( BRep_Tool::Pnt( v ), tol ))
return v;
}
}
return TopoDS_Vertex();
}
//================================================================================
/*
* Create a copy of an old node and remember this couple of nodes for replacement
*/
//================================================================================
void StdMeshers_RenumberHelper::AddReplacingNode( const SMDS_MeshNode* & oldNode )
{
SMESHDS_Mesh* mesh = _mesh->GetMeshDS();
SMESH_NodeXYZ oldXYZ = oldNode;
SMDS_MeshNode* newNode = mesh->AddNode( oldXYZ.X(), oldXYZ.Y(), oldXYZ.Z() );
_newOldNodes.front() = newNode;
_newOldNodes.back() = oldNode;
_nodesToMerge.push_back( _newOldNodes );
oldNode = newNode;
int shapeID = oldXYZ->GetShapeID();
const TopoDS_Shape& shape = mesh->IndexToShape( shapeID );
if ( !shape.IsNull() )
switch ( shape.ShapeType() )
{
case TopAbs_FACE:
if ( SMDS_FacePositionPtr pos = oldXYZ->GetPosition() )
mesh->SetNodeOnFace( newNode, shapeID, pos->GetUParameter(), pos->GetVParameter() );
break;
case TopAbs_EDGE:
if ( SMDS_EdgePositionPtr pos = oldXYZ->GetPosition() )
mesh->SetNodeOnEdge( newNode, shapeID, pos->GetUParameter() );
break;
case TopAbs_VERTEX:
mesh->SetNodeOnVertex( newNode, shapeID );
break;
default:
mesh->SetNodeInVolume( newNode, shapeID );
}
}
//================================================================================
/*
* Replace old nodes by new ones
*/
//================================================================================
void StdMeshers_RenumberHelper::DoReplaceNodes()
{
SMESH_MeshEditor( _mesh ).MergeNodes( _nodesToMerge );
}
//=============================================================================
/*!
* Persistence
*/
//=============================================================================
ostream & StdMeshers_BlockRenumber::SaveTo(ostream & save)
{
boost::archive::text_oarchive archive( save );
archive << *this;
return save;
}
//=============================================================================
/*!
* Persistence
*/
//=============================================================================
istream & StdMeshers_BlockRenumber::LoadFrom(istream & load)
{
SMESH_TRY;
boost::archive::text_iarchive archive( load );
archive >> *this;
SMESH_CATCH( SMESH::doNothing );
return load;
}
namespace boost {
namespace serialization {
//=======================================================================
//function : serialize
//purpose : serialize StdMeshers_BlockCS
//=======================================================================
template<class Archive>
void serialize(Archive & ar, StdMeshers_BlockCS & blockCS, const unsigned int version)
{
ar & blockCS._solid;
ar & blockCS._vertex000;
ar & blockCS._vertex001;
}
} // namespace serialization
} // namespace boost
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