-// Copyright (C) 2007-2016 CEA/DEN, EDF R&D, OPEN CASCADE
+// 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
//
#include "SMESHDS_SubMesh.hxx"
-#include "SMESHDS_Mesh.hxx"
-#include "SMDS_SetIterator.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(SMESHDS_Mesh *parent, int index)
+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;
}
//================================================================================
(LOCALIZED("add element in subshape already belonging to a subshape"));
}
}
+ else
+ {
+ ++myNbElements;
+ }
elem->setShapeID( myIndex );
- myNbElements++;
+
+ // remember element with smallest ID to optimize iteration on them
+ add( elem );
}
}
bool SMESHDS_SubMesh::RemoveElement(const SMDS_MeshElement * elem )
{
- if ( !elem || elem->IsNull() || elem->getshapeId() != myIndex )
+ if ( myNbElements == 0 || !elem || elem->IsNull() || elem->getshapeId() != myIndex )
{
return false;
}
{
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;
(LOCALIZED("a node being in sub-mesh is added to another sub-mesh"));
return; // already in
}
+ else
+ {
+ ++myNbNodes;
+ }
N->setShapeID( myIndex );
- myNbNodes++;
+
+ // remember node with smallest ID to optimize iteration on them
+ add( N );
}
}
bool SMESHDS_SubMesh::RemoveNode(const SMDS_MeshNode * N)
{
- if ( !N || N->getshapeId() != myIndex )
+ if ( myNbNodes == 0 || !N || N->getshapeId() != myIndex )
{
return false;
}
{
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;
//purpose :
//=======================================================================
-int SMESHDS_SubMesh::NbElements() const
+smIdType SMESHDS_SubMesh::NbElements() const
{
if ( !IsComplexSubmesh() )
return myNbElements;
- int nbElems = 0;
+ smIdType nbElems = 0;
TSubMeshSet::const_iterator it = mySubMeshes.begin();
for ( ; it != mySubMeshes.end(); it++ )
nbElems += (*it)->NbElements();
//purpose :
//=======================================================================
-int SMESHDS_SubMesh::NbNodes() const
+smIdType SMESHDS_SubMesh::NbNodes() const
{
if ( !IsComplexSubmesh() )
return myNbNodes;
- int nbElems = 0;
+ smIdType nbElems = 0;
TSubMeshSet::const_iterator it = mySubMeshes.begin();
for ( ; it != mySubMeshes.end(); it++ )
nbElems += (*it)->NbNodes();
return nbElems;
}
-/*!
- * Template class used for iteration on vector of elements which can resize
- * during iteration. The iterator returns only elements present upon its creation.
- */
-template <class ELEM, typename TSET> class MySetIterator : public SMDS_Iterator<ELEM>
-{
-protected:
- int _iCur, _iEnd, _iDelta;
- const TSET& _table;
-public:
- MySetIterator(const TSET& table, bool reverse): _table( table )
- {
- if ( reverse )
- {
- _iCur = _table.size()-1;
- _iEnd = -1;
- _iDelta = -1;
- }
- else
- {
- _iCur = 0;
- _iEnd = _table.size();
- _iDelta = 1;
- }
- if ( more() && !_table[ _iCur ])
- next();
- }
-
- virtual bool more()
- {
- return ( _iEnd - _iCur ) * _iDelta > 0;
- }
-
- virtual ELEM next()
- {
- ELEM e = more() ? _table[ _iCur ] : 0;
- _iCur += _iDelta;
- while ( more() && !_table[ _iCur ])
- _iCur += _iDelta;
- return e;
- }
-};
-
// =====================
// class MyIterator
// =====================
if ( IsComplexSubmesh() )
return SMDS_ElemIteratorPtr( new MyElemIterator( mySubMeshes ));
- return myParent->shapeElementsIterator( myIndex, myNbElements );
+ 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 );
}
//=======================================================================
if ( IsComplexSubmesh() )
return SMDS_NodeIteratorPtr( new MyNodeIterator( mySubMeshes ));
- return myParent->shapeNodesIterator( myIndex, myNbNodes );
+ 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 );
}
//=======================================================================
myNbElements = 0;
myNbNodes = 0;
+ my1stElemNode[0] = my1stElemNode[1] = 0;
+
if ( NbSubMeshes() > 0 )
{
SMESHDS_SubMeshIteratorPtr sub = GetSubMeshIterator();
}
}
}
+
+//=======================================================================
+//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;
+}
