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smesh/src/StdMeshers/StdMeshers_Import_1D.cxx
vsr 6d32f944a0 Update copyrights
2019-02-14 15:33:05 +03:00

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// Copyright (C) 2007-2019 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
//
// SMESH SMESH : implementation of SMESH idl descriptions
// File : StdMeshers_Import_1D.cxx
// Module : SMESH
//
#include "StdMeshers_Import_1D.hxx"
#include "StdMeshers_ImportSource.hxx"
#include "SMDS_MeshElement.hxx"
#include "SMDS_MeshNode.hxx"
#include "SMESHDS_Group.hxx"
#include "SMESHDS_Mesh.hxx"
#include "SMESH_Comment.hxx"
#include "SMESH_Gen.hxx"
#include "SMESH_Group.hxx"
#include "SMESH_HypoFilter.hxx"
#include "SMESH_Mesh.hxx"
#include "SMESH_MeshEditor.hxx"
#include "SMESH_MesherHelper.hxx"
#include "SMESH_subMesh.hxx"
#include "SMESH_subMeshEventListener.hxx"
#include "Utils_SALOME_Exception.hxx"
#include "utilities.h"
#include <BRep_Builder.hxx>
#include <BRep_Tool.hxx>
#include <TopExp.hxx>
#include <TopExp_Explorer.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Compound.hxx>
#include <TopoDS_Edge.hxx>
#include <TopoDS_Vertex.hxx>
using namespace std;
//=============================================================================
/*!
* Creates StdMeshers_Import_1D
*/
//=============================================================================
StdMeshers_Import_1D::StdMeshers_Import_1D(int hypId, SMESH_Gen * gen)
:SMESH_1D_Algo(hypId, gen), _sourceHyp(0)
{
_name = "Import_1D";
_shapeType = (1 << TopAbs_EDGE);
_compatibleHypothesis.push_back("ImportSource1D");
}
//================================================================================
namespace // INTERNAL STUFF
//================================================================================
{
int getSubmeshIDForCopiedMesh(const SMESHDS_Mesh* srcMeshDS, SMESH_Mesh* tgtMesh);
enum _ListenerDataType
{
WAIT_HYP_MODIF=1, // data indicating awaiting for valid parameters of src hyp
LISTEN_SRC_MESH, // data storing submesh depending on source mesh state
SRC_HYP // data storing ImportSource hyp
};
//================================================================================
/*!
* \brief _ListenerData holding ImportSource hyp holding in its turn
* imported groups
*/
struct _ListenerData : public SMESH_subMeshEventListenerData
{
const StdMeshers_ImportSource1D* _srcHyp;
_ListenerData(const StdMeshers_ImportSource1D* h, _ListenerDataType type=SRC_HYP):
SMESH_subMeshEventListenerData(/*isDeletable=*/true), _srcHyp(h)
{
myType = type;
}
};
//================================================================================
/*!
* \brief Comparator of sub-meshes
*/
struct _SubLess
{
bool operator()(const SMESH_subMesh* sm1, const SMESH_subMesh* sm2 ) const
{
if ( sm1 == sm2 ) return false;
if ( !sm1 || !sm2 ) return sm1 < sm2;
const TopoDS_Shape& s1 = sm1->GetSubShape();
const TopoDS_Shape& s2 = sm2->GetSubShape();
TopAbs_ShapeEnum t1 = s1.IsNull() ? TopAbs_SHAPE : s1.ShapeType();
TopAbs_ShapeEnum t2 = s2.IsNull() ? TopAbs_SHAPE : s2.ShapeType();
if ( t1 == t2)
return (sm1 < sm2);
return t1 < t2; // to have: face < edge
}
};
//================================================================================
/*!
* \brief Container of data dedicated to one source mesh
*/
struct _ImportData
{
const SMESH_Mesh* _srcMesh;
StdMeshers_Import_1D::TNodeNodeMap _n2n;
StdMeshers_Import_1D::TElemElemMap _e2e;
set< SMESH_subMesh*, _SubLess > _subM; // submeshes relating to this srcMesh
set< SMESH_subMesh*, _SubLess > _copyMeshSubM; // submeshes requesting mesh copying
set< SMESH_subMesh*, _SubLess > _copyGroupSubM; // submeshes requesting group copying
set< SMESH_subMesh*, _SubLess > _computedSubM;
SMESHDS_SubMesh* _importMeshSubDS; // submesh storing a copy of _srcMesh
int _importMeshSubID; // id of _importMeshSubDS
_ImportData(const SMESH_Mesh* srcMesh=0):
_srcMesh(srcMesh), _importMeshSubDS(0),_importMeshSubID(-1) {}
void removeImportedMesh( SMESHDS_Mesh* meshDS )
{
if ( !_importMeshSubDS ) return;
SMDS_ElemIteratorPtr eIt = _importMeshSubDS->GetElements();
while ( eIt->more() )
meshDS->RemoveFreeElement( eIt->next(), 0, /*fromGroups=*/false );
SMDS_NodeIteratorPtr nIt = _importMeshSubDS->GetNodes();
while ( nIt->more() )
meshDS->RemoveFreeNode( nIt->next(), 0, /*fromGroups=*/false );
_importMeshSubDS->Clear();
_n2n.clear();
_e2e.clear();
}
void removeGroups( SMESH_subMesh* subM, const StdMeshers_ImportSource1D* srcHyp )
{
if ( !srcHyp ) return;
SMESH_Mesh* tgtMesh = subM->GetFather();
const SMESHDS_Mesh* tgtMeshDS = tgtMesh->GetMeshDS();
const SMESHDS_Mesh* srcMeshDS = _srcMesh->GetMeshDS();
vector<SMESH_Group*>* groups =
const_cast<StdMeshers_ImportSource1D*>(srcHyp)->GetResultGroups(*srcMeshDS,*tgtMeshDS);
if ( groups )
{
for ( unsigned i = 0; i < groups->size(); ++i )
tgtMesh->RemoveGroup( groups->at(i)->GetGroupDS()->GetID() );
groups->clear();
}
}
void trackHypParams( SMESH_subMesh* sm, const StdMeshers_ImportSource1D* srcHyp )
{
if ( !srcHyp ) return;
bool toCopyMesh, toCopyGroups;
srcHyp->GetCopySourceMesh(toCopyMesh, toCopyGroups);
if ( toCopyMesh )_copyMeshSubM.insert( sm );
else _copyMeshSubM.erase( sm );
if ( toCopyGroups ) _copyGroupSubM.insert( sm );
else _copyGroupSubM.erase( sm );
}
void addComputed( SMESH_subMesh* sm )
{
SMESH_subMeshIteratorPtr smIt = sm->getDependsOnIterator(/*includeSelf=*/true,
/*complexShapeFirst=*/true);
while ( smIt->more() )
{
sm = smIt->next();
switch ( sm->GetSubShape().ShapeType() )
{
case TopAbs_EDGE:
if ( SMESH_Algo::isDegenerated( TopoDS::Edge( sm->GetSubShape() )))
continue;
case TopAbs_FACE:
_subM.insert( sm );
if ( !sm->IsEmpty() )
_computedSubM.insert( sm );
case TopAbs_VERTEX:
break;
default:;
}
}
}
};
//================================================================================
/*!
* Listener notified on events relating to imported submesh
*/
class _Listener : public SMESH_subMeshEventListener
{
typedef map< SMESH_Mesh*, list< _ImportData > > TMesh2ImpData;
TMesh2ImpData _tgtMesh2ImportData;
_Listener():SMESH_subMeshEventListener(/*isDeletable=*/false,
"StdMeshers_Import_1D::_Listener") {}
public:
// return pointer to a static listener
static _Listener* get() { static _Listener theListener; return &theListener; }
static _ImportData* getImportData(const SMESH_Mesh* srcMesh, SMESH_Mesh* tgtMesh);
static void storeImportSubmesh(SMESH_subMesh* importSub,
const SMESH_Mesh* srcMesh,
const StdMeshers_ImportSource1D* srcHyp);
virtual void ProcessEvent(const int event,
const int eventType,
SMESH_subMesh* subMesh,
SMESH_subMeshEventListenerData* data,
const SMESH_Hypothesis* hyp);
void removeSubmesh( SMESH_subMesh* sm, _ListenerData* data );
void clearSubmesh ( SMESH_subMesh* sm, _ListenerData* data, bool clearAllSub );
void clearN2N ( SMESH_Mesh* tgtMesh );
// mark sm as missing src hyp with valid groups
static void waitHypModification(SMESH_subMesh* sm)
{
sm->SetEventListener
(get(), SMESH_subMeshEventListenerData::MakeData( sm, WAIT_HYP_MODIF ), sm);
}
};
//--------------------------------------------------------------------------------
/*!
* \brief Find or create ImportData for given meshes
*/
_ImportData* _Listener::getImportData(const SMESH_Mesh* srcMesh,
SMESH_Mesh* tgtMesh)
{
list< _ImportData >& dList = get()->_tgtMesh2ImportData[tgtMesh];
list< _ImportData >::iterator d = dList.begin();
for ( ; d != dList.end(); ++d )
if ( d->_srcMesh == srcMesh )
return &*d;
dList.push_back(_ImportData(srcMesh));
return &dList.back();
}
//--------------------------------------------------------------------------------
/*!
* \brief Remember an imported sub-mesh and set needed even listeners
* \param importSub - submesh computed by Import algo
* \param srcMesh - source mesh
* \param srcHyp - ImportSource hypothesis
*/
void _Listener::storeImportSubmesh(SMESH_subMesh* importSub,
const SMESH_Mesh* srcMesh,
const StdMeshers_ImportSource1D* srcHyp)
{
// set listener to hear events of the submesh computed by "Import" algo
importSub->SetEventListener( get(), new _ListenerData(srcHyp), importSub );
// set listeners to hear events of the source mesh
SMESH_subMesh* smToNotify = importSub;
vector<SMESH_subMesh*> smToListen = srcHyp->GetSourceSubMeshes( srcMesh );
for ( size_t i = 0; i < smToListen.size(); ++i )
{
SMESH_subMeshEventListenerData* data = new _ListenerData(srcHyp, LISTEN_SRC_MESH);
data->mySubMeshes.push_back( smToNotify );
importSub->SetEventListener( get(), data, smToListen[i] );
}
// remember the submesh importSub and its sub-submeshes
_ImportData* iData = _Listener::getImportData( srcMesh, importSub->GetFather());
iData->trackHypParams( importSub, srcHyp );
iData->addComputed( importSub );
if ( !iData->_copyMeshSubM.empty() && iData->_importMeshSubID < 1 )
{
SMESH_Mesh* tgtMesh = importSub->GetFather();
iData->_importMeshSubID = getSubmeshIDForCopiedMesh( srcMesh->GetMeshDS(),tgtMesh);
iData->_importMeshSubDS = tgtMesh->GetMeshDS()->NewSubMesh( iData->_importMeshSubID );
}
}
//--------------------------------------------------------------------------------
/*!
* \brief Remove imported mesh and/or groups if needed
* \param sm - submesh losing Import algo
* \param data - data holding imported groups
*/
void _Listener::removeSubmesh( SMESH_subMesh* sm, _ListenerData* data )
{
list< _ImportData > & dList = _tgtMesh2ImportData[ sm->GetFather() ];
list< _ImportData >::iterator d = dList.begin();
for ( ; d != dList.end(); ++d )
if ( (*d)._subM.erase( sm ))
{
d->_computedSubM.erase( sm );
bool rmMesh = d->_copyMeshSubM.erase( sm ) && d->_copyMeshSubM.empty();
bool rmGroups = (d->_copyGroupSubM.erase( sm ) && d->_copyGroupSubM.empty()) || rmMesh;
if ( rmMesh )
d->removeImportedMesh( sm->GetFather()->GetMeshDS() );
if ( rmGroups && data && data->myType == SRC_HYP )
d->removeGroups( sm, data->_srcHyp );
}
}
//--------------------------------------------------------------------------------
/*!
* \brief Clear _ImportData::_n2n.
* _n2n is useful within one mesh.Compute() only
*/
void _Listener::clearN2N( SMESH_Mesh* tgtMesh )
{
list< _ImportData >& dList = get()->_tgtMesh2ImportData[tgtMesh];
list< _ImportData >::iterator d = dList.begin();
for ( ; d != dList.end(); ++d )
d->_n2n.clear();
}
//--------------------------------------------------------------------------------
/*!
* \brief Clear submeshes and remove imported mesh and/or groups if necessary
* \param sm - cleared submesh
* \param data - data holding imported groups
*/
void _Listener::clearSubmesh(SMESH_subMesh* sm, _ListenerData* data, bool clearAllSub)
{
list< _ImportData > & dList = _tgtMesh2ImportData[ sm->GetFather() ];
list< _ImportData >::iterator d = dList.begin();
for ( ; d != dList.end(); ++d )
{
if ( !d->_subM.count( sm )) continue;
if ( (*d)._computedSubM.erase( sm ) )
{
bool copyMesh = !d->_copyMeshSubM.empty();
if ( copyMesh || clearAllSub )
{
// remove imported mesh and groups
d->removeImportedMesh( sm->GetFather()->GetMeshDS() );
if ( data && data->myType == SRC_HYP )
d->removeGroups( sm, data->_srcHyp );
// clear the rest submeshes
if ( !d->_computedSubM.empty() )
{
d->_computedSubM.clear();
set< SMESH_subMesh*, _SubLess>::iterator sub = d->_subM.begin();
for ( ; sub != d->_subM.end(); ++sub )
{
SMESH_subMesh* subM = *sub;
_ListenerData* hypData = (_ListenerData*) subM->GetEventListenerData( get() );
if ( hypData && hypData->myType == SRC_HYP )
d->removeGroups( sm, hypData->_srcHyp );
subM->ComputeStateEngine( SMESH_subMesh::CLEAN );
if ( subM->GetSubShape().ShapeType() == TopAbs_FACE )
subM->ComputeSubMeshStateEngine( SMESH_subMesh::CLEAN );
}
}
}
sm->ComputeStateEngine( SMESH_subMesh::CLEAN );
if ( sm->GetSubShape().ShapeType() == TopAbs_FACE )
sm->ComputeSubMeshStateEngine( SMESH_subMesh::CLEAN );
}
if ( data && data->myType == SRC_HYP )
d->trackHypParams( sm, data->_srcHyp );
d->_n2n.clear();
d->_e2e.clear();
}
}
//--------------------------------------------------------------------------------
/*!
* \brief Remove imported mesh and/or groups
*/
void _Listener::ProcessEvent(const int event,
const int eventType,
SMESH_subMesh* subMesh,
SMESH_subMeshEventListenerData* data,
const SMESH_Hypothesis* /*hyp*/)
{
if ( data && data->myType == WAIT_HYP_MODIF )
{
// event of Import submesh
if ( SMESH_subMesh::MODIF_HYP == event &&
SMESH_subMesh::ALGO_EVENT == eventType )
{
// re-call SetEventListener() to take into account valid parameters
// of ImportSource hypothesis
if ( SMESH_Algo* algo = subMesh->GetAlgo() )
algo->SetEventListener( subMesh );
}
}
else if ( data && data->myType == LISTEN_SRC_MESH )
{
// event of source mesh
if ( SMESH_subMesh::COMPUTE_EVENT == eventType )
{
switch ( event ) {
case SMESH_subMesh::CLEAN:
// source mesh cleaned -> clean target mesh
clearSubmesh( data->mySubMeshes.front(), (_ListenerData*) data, /*all=*/true );
break;
case SMESH_subMesh::SUBMESH_COMPUTED: {
// source mesh computed -> reset FAILED state of Import submeshes to
// READY_TO_COMPUTE
SMESH_Mesh* srcMesh = subMesh->GetFather();
if ( srcMesh->NbEdges() > 0 || srcMesh->NbFaces() > 0 )
{
SMESH_Mesh* m = data->mySubMeshes.front()->GetFather();
if ( SMESH_subMesh* sm1 = m->GetSubMeshContaining(1))
{
sm1->ComputeStateEngine(SMESH_subMesh::SUBMESH_COMPUTED );
sm1->ComputeSubMeshStateEngine( SMESH_subMesh::SUBMESH_COMPUTED );
}
}
break;
}
default:;
}
}
if ( !data->mySubMeshes.empty() )
clearN2N( data->mySubMeshes.front()->GetFather() );
}
else // event of Import submesh
{
// find out what happens: import hyp modified or removed
bool removeImport = false, modifHyp = false;
if ( SMESH_subMesh::ALGO_EVENT == eventType )
modifHyp = true;
if ( subMesh->GetAlgoState() != SMESH_subMesh::HYP_OK )
{
removeImport = true;
}
else if (( SMESH_subMesh::REMOVE_ALGO == event ||
SMESH_subMesh::REMOVE_FATHER_ALGO == event ) &&
SMESH_subMesh::ALGO_EVENT == eventType )
{
SMESH_Algo* algo = subMesh->GetAlgo();
removeImport = ( strncmp( "Import", algo->GetName(), 6 ) != 0 );
}
if ( removeImport )
{
// treate removal of Import algo from subMesh
removeSubmesh( subMesh, (_ListenerData*) data );
}
else if ( modifHyp ||
( SMESH_subMesh::CLEAN == event &&
SMESH_subMesh::COMPUTE_EVENT == eventType))
{
// treate modification of ImportSource hypothesis
clearSubmesh( subMesh, (_ListenerData*) data, /*all=*/false );
}
else if ( SMESH_subMesh::CHECK_COMPUTE_STATE == event &&
SMESH_subMesh::COMPUTE_EVENT == eventType )
{
// check compute state of all submeshes impoting from same src mesh;
// this is to take into account 1D computed submeshes hidden by 2D import algo;
// else source mesh is not copied as _subM.size != _computedSubM.size()
list< _ImportData > & dList = _tgtMesh2ImportData[ subMesh->GetFather() ];
list< _ImportData >::iterator d = dList.begin();
for ( ; d != dList.end(); ++d )
if ( d->_subM.count( subMesh ))
{
set<SMESH_subMesh*,_SubLess>::iterator smIt = d->_subM.begin();
for( ; smIt != d->_subM.end(); ++smIt )
if ( (*smIt)->IsMeshComputed() )
d->_computedSubM.insert( *smIt);
}
}
// Clear _ImportData::_n2n if it's no more useful, i.e. when
// the event is not within mesh.Compute()
if ( SMESH_subMesh::ALGO_EVENT == eventType )
clearN2N( subMesh->GetFather() );
}
}
//================================================================================
/*!
* \brief Return an ID of submesh to store nodes and elements of a copied mesh
*/
//================================================================================
int getSubmeshIDForCopiedMesh(const SMESHDS_Mesh* srcMeshDS,
SMESH_Mesh* tgtMesh)
{
// To get SMESH_subMesh corresponding to srcMeshDS we need to have a shape
// for which SMESHDS_Mesh::IsGroupOfSubShapes() returns true.
// And this shape must be different from sub-shapes of the main shape.
// So we create a compound containing
// 1) some sub-shapes of SMESH_Mesh::PseudoShape() corresponding to
// srcMeshDS->GetPersistentId()
// 2) the 1-st vertex of the main shape to assure
// SMESHDS_Mesh::IsGroupOfSubShapes(shape)==true
TopoDS_Shape shapeForSrcMesh;
TopTools_IndexedMapOfShape pseudoSubShapes;
TopExp::MapShapes( SMESH_Mesh::PseudoShape(), pseudoSubShapes );
// index of pseudoSubShapes corresponding to srcMeshDS
int subIndex = 1 + srcMeshDS->GetPersistentId() % pseudoSubShapes.Extent();
int nbSubShapes = 1 + srcMeshDS->GetPersistentId() / pseudoSubShapes.Extent();
// try to find already present shapeForSrcMesh
SMESHDS_Mesh* tgtMeshDS = tgtMesh->GetMeshDS();
for ( int i = tgtMeshDS->MaxShapeIndex(); i > 0 && shapeForSrcMesh.IsNull(); --i )
{
const TopoDS_Shape& s = tgtMeshDS->IndexToShape(i);
if ( s.ShapeType() != TopAbs_COMPOUND ) break;
TopoDS_Iterator sSubIt( s );
for ( int iSub = 0; iSub < nbSubShapes && sSubIt.More(); ++iSub, sSubIt.Next() )
if ( pseudoSubShapes( subIndex+iSub ).IsSame( sSubIt.Value()))
if ( iSub+1 == nbSubShapes )
{
shapeForSrcMesh = s;
break;
}
}
if ( shapeForSrcMesh.IsNull() )
{
// make a new shapeForSrcMesh
BRep_Builder aBuilder;
TopoDS_Compound comp;
aBuilder.MakeCompound( comp );
shapeForSrcMesh = comp;
for ( int iSub = 0; iSub < nbSubShapes; ++iSub )
if ( subIndex+iSub <= pseudoSubShapes.Extent() )
aBuilder.Add( comp, pseudoSubShapes( subIndex+iSub ));
TopExp_Explorer vExp( tgtMeshDS->ShapeToMesh(), TopAbs_VERTEX );
aBuilder.Add( comp, vExp.Current() );
}
SMESH_subMesh* sm = tgtMesh->GetSubMesh( shapeForSrcMesh );
SMESHDS_SubMesh* smDS = sm->GetSubMeshDS();
if ( !smDS )
smDS = tgtMeshDS->NewSubMesh( sm->GetId() );
// make ordinary submesh from a complex one
if ( smDS->IsComplexSubmesh() )
{
list< const SMESHDS_SubMesh* > subSM;
SMESHDS_SubMeshIteratorPtr smIt = smDS->GetSubMeshIterator();
while ( smIt->more() ) subSM.push_back( smIt->next() );
list< const SMESHDS_SubMesh* >::iterator sub = subSM.begin();
for ( ; sub != subSM.end(); ++sub)
smDS->RemoveSubMesh( *sub );
}
return sm->GetId();
}
//================================================================================
/*!
* \brief Return a submesh to store nodes and elements of a copied mesh
* and set event listeners in order to clear
* imported mesh and groups as soon as submesh state requires it
*/
//================================================================================
SMESHDS_SubMesh* getSubmeshForCopiedMesh(const SMESH_Mesh* srcMesh,
SMESH_Mesh* tgtMesh,
const TopoDS_Shape& tgtShape,
StdMeshers_Import_1D::TNodeNodeMap*& n2n,
StdMeshers_Import_1D::TElemElemMap*& e2e,
bool & toCopyGroups)
{
StdMeshers_Import_1D::getMaps( srcMesh, tgtMesh, n2n,e2e );
_ImportData* iData = _Listener::getImportData(srcMesh,tgtMesh);
SMESH_subMesh* importedSM = tgtMesh->GetSubMesh( tgtShape );
iData->addComputed( importedSM );
if ( iData->_computedSubM.size() != iData->_subM.size() )
return 0; // not all submeshes computed yet
toCopyGroups = !iData->_copyGroupSubM.empty();
if ( !iData->_copyMeshSubM.empty())
{
// make submesh to store a copied mesh
int smID = getSubmeshIDForCopiedMesh( srcMesh->GetMeshDS(), tgtMesh );
SMESHDS_SubMesh* subDS = tgtMesh->GetMeshDS()->NewSubMesh( smID );
iData->_importMeshSubID = smID;
iData->_importMeshSubDS = subDS;
return subDS;
}
return 0;
}
} // namespace
//=============================================================================
/*!
* Check presence of a hypothesis
*/
//=============================================================================
bool StdMeshers_Import_1D::CheckHypothesis
(SMESH_Mesh& aMesh,
const TopoDS_Shape& aShape,
SMESH_Hypothesis::Hypothesis_Status& aStatus)
{
_sourceHyp = 0;
const list <const SMESHDS_Hypothesis * >&hyps = GetUsedHypothesis(aMesh, aShape);
if ( hyps.size() == 0 )
{
aStatus = SMESH_Hypothesis::HYP_MISSING;
return false; // can't work with no hypothesis
}
if ( hyps.size() > 1 )
{
aStatus = SMESH_Hypothesis::HYP_ALREADY_EXIST;
return false;
}
const SMESHDS_Hypothesis *theHyp = hyps.front();
string hypName = theHyp->GetName();
if (hypName == _compatibleHypothesis.front())
{
_sourceHyp = (StdMeshers_ImportSource1D *)theHyp;
aStatus = _sourceHyp->GetGroups().empty() ? HYP_BAD_PARAMETER : HYP_OK;
if ( aStatus == HYP_BAD_PARAMETER )
_Listener::waitHypModification( aMesh.GetSubMesh( aShape ));
return aStatus == HYP_OK;
}
aStatus = SMESH_Hypothesis::HYP_INCOMPATIBLE;
return false;
}
//=============================================================================
/*!
* Import elements from the other mesh
*/
//=============================================================================
bool StdMeshers_Import_1D::Compute(SMESH_Mesh & theMesh, const TopoDS_Shape & theShape)
{
if ( !_sourceHyp ) return false;
//MESSAGE("---------> StdMeshers_Import_1D::Compute");
const vector<SMESH_Group*>& srcGroups = _sourceHyp->GetGroups(/*loaded=*/true);
if ( srcGroups.empty() )
return error("Invalid source groups");
SMESH_MesherHelper helper(theMesh);
helper.SetSubShape(theShape);
SMESHDS_Mesh* tgtMesh = theMesh.GetMeshDS();
const TopoDS_Edge& geomEdge = TopoDS::Edge( theShape );
const double edgeTol = BRep_Tool::Tolerance( geomEdge );
const int shapeID = tgtMesh->ShapeToIndex( geomEdge );
set<int> subShapeIDs;
subShapeIDs.insert( shapeID );
// get nodes on vertices
list < SMESH_TNodeXYZ > vertexNodes;
list < SMESH_TNodeXYZ >::iterator vNIt;
TopExp_Explorer vExp( theShape, TopAbs_VERTEX );
for ( ; vExp.More(); vExp.Next() )
{
const TopoDS_Vertex& v = TopoDS::Vertex( vExp.Current() );
if ( !subShapeIDs.insert( tgtMesh->ShapeToIndex( v )).second )
continue; // closed edge
const SMDS_MeshNode* n = SMESH_Algo::VertexNode( v, tgtMesh );
if ( !n )
{
_gen->Compute(theMesh,v,/*anUpward=*/true);
n = SMESH_Algo::VertexNode( v, tgtMesh );
//MESSAGE("_gen->Compute " << n);
if ( !n ) return false; // very strange
}
vertexNodes.push_back( SMESH_TNodeXYZ( n ));
//MESSAGE("SMESH_Algo::VertexNode " << n->GetID() << " " << n->X() << " " << n->Y() << " " << n->Z() );
}
// import edges from groups
TNodeNodeMap* n2n;
TElemElemMap* e2e;
for ( size_t iG = 0; iG < srcGroups.size(); ++iG )
{
const SMESHDS_GroupBase* srcGroup = srcGroups[iG]->GetGroupDS();
const int meshID = srcGroup->GetMesh()->GetPersistentId();
const SMESH_Mesh* srcMesh = GetMeshByPersistentID( meshID );
if ( !srcMesh ) continue;
getMaps( srcMesh, &theMesh, n2n, e2e );
SMDS_ElemIteratorPtr srcElems = srcGroup->GetElements();
vector<const SMDS_MeshNode*> newNodes;
SMDS_MeshNode *tmpNode = helper.AddNode(0,0,0);
double u = 0.314159; // "random" value between 0 and 1, avoid 0 and 1, false detection possible on edge restrictions
while ( srcElems->more() ) // loop on group contents
{
const SMDS_MeshElement* edge = srcElems->next();
// find or create nodes of a new edge
newNodes.resize( edge->NbNodes() );
//MESSAGE("edge->NbNodes " << edge->NbNodes());
newNodes.back() = 0;
SMDS_MeshElement::iterator node = edge->begin_nodes();
SMESH_TNodeXYZ a(edge->GetNode(0));
// --- define a tolerance relative to the length of an edge
double mytol = a.Distance(edge->GetNode(edge->NbNodes()-1))/25;
//mytol = max(1.E-5, 10*edgeTol); // too strict and not necessary
//MESSAGE("mytol = " << mytol);
for ( size_t i = 0; i < newNodes.size(); ++i, ++node )
{
TNodeNodeMap::iterator n2nIt = n2n->insert( make_pair( *node, (SMDS_MeshNode*)0 )).first;
if ( n2nIt->second )
{
if ( !subShapeIDs.count( n2nIt->second->getshapeId() ))
break;
}
else
{
// find an existing vertex node
double checktol = max(1.E-10, 10*edgeTol*edgeTol);
for ( vNIt = vertexNodes.begin(); vNIt != vertexNodes.end(); ++vNIt)
if ( vNIt->SquareDistance( *node ) < checktol)
{
//MESSAGE("SquareDistance " << vNIt->SquareDistance( *node ) << " checktol " << checktol <<" "<<vNIt->X()<<" "<<vNIt->Y()<<" "<<vNIt->Z());
(*n2nIt).second = vNIt->_node;
vertexNodes.erase( vNIt );
break;
}
else if ( vNIt->SquareDistance( *node ) < 10*checktol)
MESSAGE("SquareDistance missed" << vNIt->SquareDistance( *node ) << " checktol " << checktol <<" "<<vNIt->X()<<" "<<vNIt->Y()<<" "<<vNIt->Z());
}
if ( !n2nIt->second )
{
// find out if node lies on theShape
//double dxyz[4];
tmpNode->setXYZ( (*node)->X(), (*node)->Y(), (*node)->Z());
if ( helper.CheckNodeU( geomEdge, tmpNode, u, mytol, /*force=*/true)) // , dxyz )) // dxyz used for debug purposes
{
SMDS_MeshNode* newNode = tgtMesh->AddNode( (*node)->X(), (*node)->Y(), (*node)->Z());
n2nIt->second = newNode;
tgtMesh->SetNodeOnEdge( newNode, shapeID, u );
//MESSAGE("u=" << u << " " << newNode->X()<< " " << newNode->Y()<< " " << newNode->Z());
//MESSAGE("d=" << dxyz[0] << " " << dxyz[1] << " " << dxyz[2] << " " << dxyz[3]);
}
}
if ( !(newNodes[i] = n2nIt->second ))
break;
}
if ( !newNodes.back() )
{
//MESSAGE("not all nodes of edge lie on theShape");
continue; // not all nodes of edge lie on theShape
}
// make a new edge
SMDS_MeshElement * newEdge;
if ( newNodes.size() == 3 )
newEdge = tgtMesh->AddEdge( newNodes[0], newNodes[1], newNodes[2] );
else
newEdge = tgtMesh->AddEdge( newNodes[0], newNodes[1]);
//MESSAGE("add Edge " << newNodes[0]->GetID() << " " << newNodes[1]->GetID());
tgtMesh->SetMeshElementOnShape( newEdge, shapeID );
e2e->insert( make_pair( edge, newEdge ));
}
helper.GetMeshDS()->RemoveNode(tmpNode);
}
if ( n2n->empty())
return error("Empty source groups");
// check if the whole geom edge is covered by imported segments;
// the check consist in passing by segments from one vetrex node to another
bool isEdgeMeshed = false;
if ( SMESHDS_SubMesh* tgtSM = tgtMesh->MeshElements( theShape ))
{
const TopoDS_Vertex& v = ( vExp.ReInit(), TopoDS::Vertex( vExp.Current() ));
const SMDS_MeshNode* n = SMESH_Algo::VertexNode( v, tgtMesh );
const SMDS_MeshElement* seg = 0;
SMDS_ElemIteratorPtr segIt = n->GetInverseElementIterator(SMDSAbs_Edge);
while ( segIt->more() && !seg )
if ( !tgtSM->Contains( seg = segIt->next()))
seg = 0;
int nbPassedSegs = 0;
while ( seg )
{
++nbPassedSegs;
const SMDS_MeshNode* n2 = seg->GetNode(0);
n = ( n2 == n ? seg->GetNode(1) : n2 );
if ( n->GetPosition()->GetTypeOfPosition() == SMDS_TOP_VERTEX )
break;
const SMDS_MeshElement* seg2 = 0;
segIt = n->GetInverseElementIterator(SMDSAbs_Edge);
while ( segIt->more() && !seg2 )
if ( seg == ( seg2 = segIt->next()))
seg2 = 0;
seg = seg2;
}
if (nbPassedSegs > 0 && tgtSM->NbElements() > nbPassedSegs )
return error( "Source elements overlap one another");
isEdgeMeshed = ( tgtSM->NbElements() == nbPassedSegs &&
n->GetPosition()->GetTypeOfPosition() == SMDS_TOP_VERTEX );
}
if ( !isEdgeMeshed )
return error( "Source elements don't cover totally the geometrical edge" );
// copy meshes
vector<SMESH_Mesh*> srcMeshes = _sourceHyp->GetSourceMeshes();
for ( size_t i = 0; i < srcMeshes.size(); ++i )
importMesh( srcMeshes[i], theMesh, _sourceHyp, theShape );
return true;
}
//================================================================================
/*!
* \brief Copy mesh and groups
*/
//================================================================================
void StdMeshers_Import_1D::importMesh(const SMESH_Mesh* srcMesh,
SMESH_Mesh & tgtMesh,
StdMeshers_ImportSource1D* srcHyp,
const TopoDS_Shape& tgtShape)
{
// get submesh to store the imported mesh
TNodeNodeMap* n2n;
TElemElemMap* e2e;
bool toCopyGroups;
SMESHDS_SubMesh* tgtSubMesh =
getSubmeshForCopiedMesh( srcMesh, &tgtMesh, tgtShape, n2n, e2e, toCopyGroups );
if ( !tgtSubMesh || tgtSubMesh->NbNodes() + tgtSubMesh->NbElements() > 0 )
return; // not to copy srcMeshDS twice
SMESHDS_Mesh* tgtMeshDS = tgtMesh.GetMeshDS();
SMESH_MeshEditor additor( &tgtMesh );
// 1. Copy mesh
SMESH_MeshEditor::ElemFeatures elemType;
vector<const SMDS_MeshNode*> newNodes;
const SMESHDS_Mesh* srcMeshDS = srcMesh->GetMeshDS();
SMDS_ElemIteratorPtr eIt = srcMeshDS->elementsIterator();
while ( eIt->more() )
{
const SMDS_MeshElement* elem = eIt->next();
TElemElemMap::iterator e2eIt = e2e->insert( make_pair( elem, (SMDS_MeshElement*)0 )).first;
if ( e2eIt->second ) continue; // already copied by Compute()
newNodes.resize( elem->NbNodes() );
SMDS_MeshElement::iterator node = elem->begin_nodes();
for ( unsigned i = 0; i < newNodes.size(); ++i, ++node )
{
TNodeNodeMap::iterator n2nIt = n2n->insert( make_pair( *node, (SMDS_MeshNode*)0 )).first;
if ( !n2nIt->second )
{
(*n2nIt).second = tgtMeshDS->AddNode( (*node)->X(), (*node)->Y(), (*node)->Z());
tgtSubMesh->AddNode( n2nIt->second );
}
newNodes[i] = n2nIt->second;
}
const SMDS_MeshElement* newElem =
tgtMeshDS->FindElement( newNodes, elem->GetType(), /*noMedium=*/false );
if ( !newElem )
{
newElem = additor.AddElement( newNodes, elemType.Init( elem, /*basicOnly=*/false ));
tgtSubMesh->AddElement( newElem );
}
if ( toCopyGroups )
(*e2eIt).second = newElem;
}
// copy free nodes
if ( srcMeshDS->NbNodes() > (int) n2n->size() )
{
SMDS_NodeIteratorPtr nIt = srcMeshDS->nodesIterator();
while( nIt->more() )
{
const SMDS_MeshNode* node = nIt->next();
if ( node->NbInverseElements() == 0 )
{
const SMDS_MeshNode* newNode = tgtMeshDS->AddNode( node->X(), node->Y(), node->Z());
n2n->insert( make_pair( node, newNode ));
tgtSubMesh->AddNode( newNode );
}
}
}
// 2. Copy groups
vector<SMESH_Group*> resultGroups;
if ( toCopyGroups )
{
// collect names of existing groups to assure uniqueness of group names within a type
map< SMDSAbs_ElementType, set<string> > namesByType;
SMESH_Mesh::GroupIteratorPtr groupIt = tgtMesh.GetGroups();
while ( groupIt->more() )
{
SMESH_Group* tgtGroup = groupIt->next();
namesByType[ tgtGroup->GetGroupDS()->GetType() ].insert( tgtGroup->GetName() );
}
if (srcMesh)
{
SMESH_Mesh::GroupIteratorPtr groupIt = srcMesh->GetGroups();
while ( groupIt->more() )
{
SMESH_Group* srcGroup = groupIt->next();
SMESHDS_GroupBase* srcGroupDS = srcGroup->GetGroupDS();
string name = srcGroup->GetName();
int nb = 1;
while ( !namesByType[ srcGroupDS->GetType() ].insert( name ).second )
name = SMESH_Comment(srcGroup->GetName()) << "_imported_" << nb++;
SMESH_Group* newGroup = tgtMesh.AddGroup( srcGroupDS->GetType(), name.c_str() );
SMESHDS_Group* newGroupDS = (SMESHDS_Group*)newGroup->GetGroupDS();
resultGroups.push_back( newGroup );
eIt = srcGroupDS->GetElements();
if ( srcGroupDS->GetType() == SMDSAbs_Node )
while (eIt->more())
{
TNodeNodeMap::iterator n2nIt = n2n->find((const SMDS_MeshNode*) eIt->next() );
if ( n2nIt != n2n->end() && n2nIt->second )
newGroupDS->SMDSGroup().Add((*n2nIt).second );
}
else
while (eIt->more())
{
TElemElemMap::iterator e2eIt = e2e->find( eIt->next() );
if ( e2eIt != e2e->end() && e2eIt->second )
newGroupDS->SMDSGroup().Add((*e2eIt).second );
}
}
}
}
n2n->clear();
e2e->clear();
// Remember created groups in order to remove them as soon as the srcHyp is
// modified or something other similar happens. This imformation must be persistent,
// for that store them in a hypothesis as it stores its values in the file anyway
srcHyp->StoreResultGroups( resultGroups, *srcMeshDS, *tgtMeshDS );
}
//=============================================================================
/*!
* \brief Set needed event listeners and create a submesh for a copied mesh
*
* This method is called only if a submesh has HYP_OK algo_state.
*/
//=============================================================================
void StdMeshers_Import_1D::setEventListener(SMESH_subMesh* subMesh,
StdMeshers_ImportSource1D* sourceHyp)
{
if ( sourceHyp )
{
vector<SMESH_Mesh*> srcMeshes = sourceHyp->GetSourceMeshes();
if ( srcMeshes.empty() )
_Listener::waitHypModification( subMesh );
for ( unsigned i = 0; i < srcMeshes.size(); ++i )
// set a listener to remove the imported mesh and groups
_Listener::storeImportSubmesh( subMesh, srcMeshes[i], sourceHyp );
}
}
void StdMeshers_Import_1D::SetEventListener(SMESH_subMesh* subMesh)
{
if ( !_sourceHyp )
{
const TopoDS_Shape& tgtShape = subMesh->GetSubShape();
SMESH_Mesh* tgtMesh = subMesh->GetFather();
Hypothesis_Status aStatus;
CheckHypothesis( *tgtMesh, tgtShape, aStatus );
}
setEventListener( subMesh, _sourceHyp );
}
void StdMeshers_Import_1D::SubmeshRestored(SMESH_subMesh* subMesh)
{
SetEventListener(subMesh);
}
//=============================================================================
/*!
* Predict nb of mesh entities created by Compute()
*/
//=============================================================================
bool StdMeshers_Import_1D::Evaluate(SMESH_Mesh & theMesh,
const TopoDS_Shape & theShape,
MapShapeNbElems& aResMap)
{
if ( !_sourceHyp ) return false;
const vector<SMESH_Group*>& srcGroups = _sourceHyp->GetGroups();
if ( srcGroups.empty() )
return error("Invalid source groups");
vector<int> aVec(SMDSEntity_Last,0);
bool toCopyMesh, toCopyGroups;
_sourceHyp->GetCopySourceMesh(toCopyMesh, toCopyGroups);
if ( toCopyMesh ) // the whole mesh is copied
{
vector<SMESH_Mesh*> srcMeshes = _sourceHyp->GetSourceMeshes();
for ( unsigned i = 0; i < srcMeshes.size(); ++i )
{
SMESH_subMesh* sm = getSubMeshOfCopiedMesh( theMesh, *srcMeshes[i]);
if ( !sm || aResMap.count( sm )) continue; // already counted
aVec.assign( SMDSEntity_Last, 0);
const SMDS_MeshInfo& aMeshInfo = srcMeshes[i]->GetMeshDS()->GetMeshInfo();
for (int i = 0; i < SMDSEntity_Last; i++)
aVec[i] = aMeshInfo.NbEntities((SMDSAbs_EntityType)i);
}
}
else
{
SMESH_MesherHelper helper(theMesh);
const TopoDS_Edge& geomEdge = TopoDS::Edge( theShape );
const double edgeTol = helper.MaxTolerance( geomEdge );
// take into account nodes on vertices
TopExp_Explorer vExp( theShape, TopAbs_VERTEX );
for ( ; vExp.More(); vExp.Next() )
theMesh.GetSubMesh( vExp.Current())->Evaluate( aResMap );
// count edges imported from groups
int nbEdges = 0, nbQuadEdges = 0;
for ( size_t iG = 0; iG < srcGroups.size(); ++iG )
{
const SMESHDS_GroupBase* srcGroup = srcGroups[iG]->GetGroupDS();
SMDS_ElemIteratorPtr srcElems = srcGroup->GetElements();
SMDS_MeshNode *tmpNode = helper.AddNode(0,0,0);
while ( srcElems->more() ) // loop on group contents
{
const SMDS_MeshElement* edge = srcElems->next();
// find out if edge is located on geomEdge by projecting
// a middle of edge to geomEdge
SMESH_TNodeXYZ p1( edge->GetNode(0));
SMESH_TNodeXYZ p2( edge->GetNode(1));
gp_XYZ middle = ( p1 + p2 ) / 2.;
tmpNode->setXYZ( middle.X(), middle.Y(), middle.Z());
double u = 0;
if ( helper.CheckNodeU( geomEdge, tmpNode, u, 10 * edgeTol, /*force=*/true ))
++( edge->IsQuadratic() ? nbQuadEdges : nbEdges);
}
helper.GetMeshDS()->RemoveNode(tmpNode);
}
int nbNodes = nbEdges + 2 * nbQuadEdges - 1;
aVec[SMDSEntity_Node ] = nbNodes;
aVec[SMDSEntity_Edge ] = nbEdges;
aVec[SMDSEntity_Quad_Edge] = nbQuadEdges;
}
SMESH_subMesh * sm = theMesh.GetSubMesh(theShape);
aResMap.insert( make_pair( sm, aVec ));
return true;
}
//================================================================================
/*!
* \brief Return node-node and element-element maps for import of geiven source mesh
*/
//================================================================================
void StdMeshers_Import_1D::getMaps(const SMESH_Mesh* srcMesh,
SMESH_Mesh* tgtMesh,
TNodeNodeMap*& n2n,
TElemElemMap*& e2e)
{
_ImportData* iData = _Listener::getImportData(srcMesh,tgtMesh);
n2n = &iData->_n2n;
e2e = &iData->_e2e;
if ( iData->_copyMeshSubM.empty() )
{
// n2n->clear(); -- for sharing nodes on EDGEs
e2e->clear();
}
}
//================================================================================
/*!
* \brief Return submesh corresponding to the copied mesh
*/
//================================================================================
SMESH_subMesh* StdMeshers_Import_1D::getSubMeshOfCopiedMesh( SMESH_Mesh& tgtMesh,
SMESH_Mesh& srcMesh )
{
_ImportData* iData = _Listener::getImportData(&srcMesh,&tgtMesh);
if ( iData->_copyMeshSubM.empty() ) return 0;
SMESH_subMesh* sm = tgtMesh.GetSubMeshContaining( iData->_importMeshSubID );
return sm;
}
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