smesh/src/SMESHDS/SMESHDS_SubMesh.cxx
2022-05-05 16:51:14 +03:00

543 lines
15 KiB
C++

// Copyright (C) 2007-2022 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 SMESHDS : management of mesh data and SMESH document
// File : SMESH_SubMesh.cxx
// Author : Yves FRICAUD, OCC
// Module : SMESH
// $Header:
//
#include "SMESHDS_SubMesh.hxx"
#include "SMDS_ElementFactory.hxx"
#include "SMDS_IteratorOnIterators.hxx"
#include "SMDS_SetIterator.hxx"
#include "SMESHDS_Mesh.hxx"
#include <utilities.h>
namespace
{
typedef const SMDS_MeshElement* PElem;
typedef const SMDS_MeshNode* PNode;
typedef SMDS_SetIterator< PElem, PElem const *,
SMDS::SimpleAccessor< PElem, PElem const * >,
SMDS::NonNullFilter< PElem > > EArrayIterator;
typedef SMDS_SetIterator< PNode, PNode const *,
SMDS::SimpleAccessor< PNode, PNode const * >,
SMDS::NonNullFilter< PNode > > NArrayIterator;
int ind1st( SMDSAbs_ElementType t )
{
return t == SMDSAbs_Node;
}
//=======================================================================
//class : _MyElemIteratorFromNodeIterator
//=======================================================================
class _MyElemIteratorFromNodeIterator : public SMDS_ElemIterator
{
SMDS_NodeIteratorPtr myItr;
public:
_MyElemIteratorFromNodeIterator(SMDS_NodeIteratorPtr nodeItr): myItr( nodeItr ) {}
bool more() { return myItr->more(); }
const SMDS_MeshElement* next() { return myItr->next(); }
};
}
//================================================================================
/*!
* \brief Constructor
*/
//================================================================================
SMESHDS_SubMesh::SMESHDS_SubMesh(const SMESHDS_Mesh *parent, int index)
: SMDS_ElementHolder( parent )
{
myParent = parent;
myIndex = index;
myNbElements = 0;
myNbNodes = 0;
my1stElemNode[0] = my1stElemNode[1] = 0;
}
//================================================================================
/*!
* \brief Destructor
*/
//================================================================================
SMESHDS_SubMesh::~SMESHDS_SubMesh()
{
}
//=======================================================================
//function : AddElement
//purpose :
//=======================================================================
void SMESHDS_SubMesh::AddElement(const SMDS_MeshElement * elem)
{
if (!IsComplexSubmesh())
{
if ( elem->GetType() == SMDSAbs_Node )
{
AddNode( static_cast< const SMDS_MeshNode* >( elem ));
return;
}
int oldShapeId = elem->GetShapeID();
if ( oldShapeId > 0 )
{
if (oldShapeId != myIndex)
{
throw SALOME_Exception
(LOCALIZED("add element in subshape already belonging to a subshape"));
}
}
else
{
++myNbElements;
}
elem->setShapeID( myIndex );
// remember element with smallest ID to optimize iteration on them
add( elem );
}
}
//=======================================================================
//function : RemoveElement
//purpose :
//=======================================================================
bool SMESHDS_SubMesh::RemoveElement(const SMDS_MeshElement * elem )
{
if ( myNbElements == 0 || !elem || elem->IsNull() || elem->getshapeId() != myIndex )
{
return false;
}
if ( !IsComplexSubmesh() )
{
elem->setShapeID( 0 );
myNbElements--;
const SMDS_MeshElement* & elem1st = my1stElemNode[ ind1st( elem->GetType() )];
if ( elem1st == elem )
{
if ( myNbElements > 0 )
{
SMDS_ElemIteratorPtr it = myParent->shapeElementsIterator( myIndex, 1, elem1st );
if ( it->more() )
elem1st = it->next();
else
throw SALOME_Exception(LOCALIZED("invalid myNbElements"));
}
else
{
elem1st = 0;
}
}
return true;
}
return false;
}
//=======================================================================
//function : AddNode
//purpose :
//=======================================================================
void SMESHDS_SubMesh::AddNode(const SMDS_MeshNode * N)
{
if ( !IsComplexSubmesh() )
{
const int shapeId = N->getshapeId();
if ( shapeId > 0 )
{
if ( shapeId != myIndex )
throw SALOME_Exception
(LOCALIZED("a node being in sub-mesh is added to another sub-mesh"));
return; // already in
}
else
{
++myNbNodes;
}
N->setShapeID( myIndex );
// remember node with smallest ID to optimize iteration on them
add( N );
}
}
//=======================================================================
//function : RemoveNode
//purpose :
//=======================================================================
bool SMESHDS_SubMesh::RemoveNode(const SMDS_MeshNode * N)
{
if ( myNbNodes == 0 || !N || N->getshapeId() != myIndex )
{
return false;
}
if ( !IsComplexSubmesh() )
{
N->setShapeID( 0 );
myNbNodes--;
const SMDS_MeshElement* & node1st = my1stElemNode[ ind1st( SMDSAbs_Node )];
if ( node1st == N )
{
if ( myNbNodes > 0 )
{
SMDS_NodeIteratorPtr it =
myParent->shapeNodesIterator( myIndex, 1, static_cast< PNode >( node1st ));
if ( it->more() )
node1st = it->next();
else
throw SALOME_Exception(LOCALIZED("invalid myNbNodes"));
}
else
{
node1st = 0;
}
}
return true;
}
return false;
}
//=======================================================================
//function : NbElements
//purpose :
//=======================================================================
smIdType SMESHDS_SubMesh::NbElements() const
{
if ( !IsComplexSubmesh() )
return myNbElements;
smIdType nbElems = 0;
TSubMeshSet::const_iterator it = mySubMeshes.begin();
for ( ; it != mySubMeshes.end(); it++ )
nbElems += (*it)->NbElements();
return nbElems;
}
//=======================================================================
//function : NbNodes
//purpose :
//=======================================================================
smIdType SMESHDS_SubMesh::NbNodes() const
{
if ( !IsComplexSubmesh() )
return myNbNodes;
smIdType nbElems = 0;
TSubMeshSet::const_iterator it = mySubMeshes.begin();
for ( ; it != mySubMeshes.end(); it++ )
nbElems += (*it)->NbNodes();
return nbElems;
}
// =====================
// class MyIterator
// =====================
template<typename VALUE> class MyIterator : public SMDS_Iterator<VALUE>
{
public:
MyIterator (const TSubMeshSet& theSubMeshes)
: myMore(false), mySubIt( theSubMeshes.begin() ), mySubEnd( theSubMeshes.end() )
{}
bool more()
{
while (( !myElemIt.get() || !myElemIt->more() ) && mySubIt != mySubEnd)
{
myElemIt = getElements(*mySubIt);
mySubIt++;
}
myMore = myElemIt.get() && myElemIt->more();
return myMore;
}
VALUE next()
{
VALUE elem = 0;
if ( myMore )
elem = myElemIt->next();
return elem;
}
protected:
virtual boost::shared_ptr< SMDS_Iterator<VALUE> >
getElements(const SMESHDS_SubMesh*) const = 0;
private:
bool myMore;
TSubMeshSet::const_iterator mySubIt, mySubEnd;
boost::shared_ptr< SMDS_Iterator<VALUE> > myElemIt;
};
// =====================
// class MyElemIterator
// =====================
class MyElemIterator: public MyIterator<const SMDS_MeshElement*>
{
public:
MyElemIterator (const TSubMeshSet& theSubMeshes)
:MyIterator<const SMDS_MeshElement*>( theSubMeshes ) {}
SMDS_ElemIteratorPtr getElements(const SMESHDS_SubMesh* theSubMesh) const
{ return theSubMesh->GetElements(); }
};
// =====================
// class MyNodeIterator
// =====================
class MyNodeIterator: public MyIterator<const SMDS_MeshNode*>
{
public:
MyNodeIterator (const TSubMeshSet& theSubMeshes)
:MyIterator<const SMDS_MeshNode*>( theSubMeshes ) {}
SMDS_NodeIteratorPtr getElements(const SMESHDS_SubMesh* theSubMesh) const
{ return theSubMesh->GetNodes(); }
};
//=======================================================================
//function : GetElements
//purpose :
//=======================================================================
SMDS_ElemIteratorPtr SMESHDS_SubMesh::GetElements() const
{
if ( IsComplexSubmesh() )
return SMDS_ElemIteratorPtr( new MyElemIterator( mySubMeshes ));
const SMDS_MeshElement* const * elem1st = & my1stElemNode[ ind1st( SMDSAbs_All )];
if ( myNbElements < 2 )
{
return boost::make_shared< EArrayIterator >( elem1st, elem1st + myNbElements );
}
return myParent->shapeElementsIterator( myIndex, myNbElements, *elem1st );
}
//=======================================================================
//function : GetNodes
//purpose :
//=======================================================================
SMDS_NodeIteratorPtr SMESHDS_SubMesh::GetNodes() const
{
if ( IsComplexSubmesh() )
return SMDS_NodeIteratorPtr( new MyNodeIterator( mySubMeshes ));
PNode const * node1st =
reinterpret_cast< PNode const* >( & my1stElemNode[ ind1st( SMDSAbs_Node )] );
if ( myNbNodes < 2 )
{
return boost::make_shared< NArrayIterator >( node1st, node1st + myNbNodes );
}
return myParent->shapeNodesIterator( myIndex, myNbNodes, *node1st );
}
//=======================================================================
//function : Contains
//purpose : check if elem or node is in
//=======================================================================
bool SMESHDS_SubMesh::Contains(const SMDS_MeshElement * ME) const
{
if ( !ME || ME->IsNull() )
return false;
if ( IsComplexSubmesh() )
{
TSubMeshSet::const_iterator aSubIt = mySubMeshes.begin();
for (; aSubIt != mySubMeshes.end(); aSubIt++)
if ((*aSubIt)->Contains(ME))
return true;
return false;
}
return ME->getshapeId() == myIndex;
}
//=======================================================================
//function : IsQuadratic
//purpose : Return true if my 1st element is quadratic
//=======================================================================
bool SMESHDS_SubMesh::IsQuadratic() const
{
if ( IsComplexSubmesh() )
{
TSubMeshSet::const_iterator aSubIt = mySubMeshes.begin();
for (; aSubIt != mySubMeshes.end(); aSubIt++)
if ((*aSubIt)->IsQuadratic())
return true;
return false;
}
if ( myNbElements == 0 )
return false;
SMDS_ElemIteratorPtr it = GetElements();
return it->more() && it->next()->IsQuadratic();
}
//=======================================================================
//function : AddSubMesh
//purpose :
//=======================================================================
void SMESHDS_SubMesh::AddSubMesh( const SMESHDS_SubMesh* theSubMesh )
{
ASSERT( theSubMesh );
mySubMeshes.insert( theSubMesh );
}
//=======================================================================
//function : RemoveSubMesh
//purpose :
//=======================================================================
bool SMESHDS_SubMesh::RemoveSubMesh( const SMESHDS_SubMesh* theSubMesh )
{
return mySubMeshes.erase( theSubMesh );
}
//=======================================================================
//function : RemoveAllSubmeshes
//purpose :
//=======================================================================
void SMESHDS_SubMesh::RemoveAllSubmeshes()
{
mySubMeshes.clear();
}
//=======================================================================
//function : ContainsSubMesh
//purpose :
//=======================================================================
bool SMESHDS_SubMesh::ContainsSubMesh( const SMESHDS_SubMesh* theSubMesh ) const
{
return mySubMeshes.find( theSubMesh ) != mySubMeshes.end();
}
//=======================================================================
//function : GetSubMeshIterator
//purpose :
//=======================================================================
SMESHDS_SubMeshIteratorPtr SMESHDS_SubMesh::GetSubMeshIterator() const
{
typedef SMDS_SetIterator< const SMESHDS_SubMesh*, TSubMeshSet::const_iterator > TIterator;
return boost::make_shared< TIterator >( mySubMeshes.begin(), mySubMeshes.end());
}
//=======================================================================
//function : Clear
//purpose : remove the contents
//=======================================================================
void SMESHDS_SubMesh::Clear()
{
if ( myParent && myParent->NbNodes() > 0 )
{
if ( myNbElements > 0 )
for ( SMDS_ElemIteratorPtr it = GetElements(); it->more(); )
{
const SMDS_MeshElement * elem = it->next();
elem->setShapeID( 0 );
}
if ( myNbNodes > 0 )
for ( SMDS_NodeIteratorPtr it = GetNodes(); it->more(); )
{
const SMDS_MeshNode * elem = it->next();
elem->setShapeID( 0 );
}
}
myNbElements = 0;
myNbNodes = 0;
my1stElemNode[0] = my1stElemNode[1] = 0;
if ( NbSubMeshes() > 0 )
{
SMESHDS_SubMeshIteratorPtr sub = GetSubMeshIterator();
while ( sub->more() ) {
if ( SMESHDS_SubMesh* sm = (SMESHDS_SubMesh*) sub->next())
sm->Clear();
}
}
}
//=======================================================================
//function : getElements
//purpose : Return iterator on all elements and nodes during compacting
//=======================================================================
SMDS_ElemIteratorPtr SMESHDS_SubMesh::getElements()
{
if ( IsComplexSubmesh() ) // return nothing
boost::make_shared< EArrayIterator >( & my1stElemNode[0], & my1stElemNode[0] );
typedef std::vector< SMDS_ElemIteratorPtr > TIterVec;
TIterVec iterVec(2);
iterVec[0] = GetElements();
iterVec[1].reset( new _MyElemIteratorFromNodeIterator( GetNodes() ));
return boost::make_shared< SMDS_IteratorOnIterators< PElem, TIterVec > >( iterVec );
}
//=======================================================================
//function : tmpClear
//purpose : clean up after compacting
//=======================================================================
void SMESHDS_SubMesh::tmpClear()
{
my1stElemNode[0] = my1stElemNode[1] = 0;
}
//=======================================================================
//function : add
//purpose : update my1stElemNode
//=======================================================================
void SMESHDS_SubMesh::add( const SMDS_MeshElement* elem )
{
const SMDS_MeshElement* & oldElem = my1stElemNode[ ind1st( elem->GetType() )];
if ( !oldElem || oldElem->GetID() > elem->GetID() )
oldElem = elem;
}