23418: [OCC] Mesh: Minimization of memory usage of SMESH

[modules/smesh.git] / src / SMESHDS / SMESHDS_GroupOnFilter.cxx

diff --git a/src/SMESHDS/SMESHDS_GroupOnFilter.cxx b/src/SMESHDS/SMESHDS_GroupOnFilter.cxx
index 7653e176ce6811b594cd62b99d60e335bf8d7079..e5b2fb736bd3d75362f0f6aae9a85343fc3cf8bf 100644 (file)
--- a/src/SMESHDS/SMESHDS_GroupOnFilter.cxx
+++ b/src/SMESHDS/SMESHDS_GroupOnFilter.cxx
@@ -26,11 +26,14 @@
 #include "SMESHDS_GroupOnFilter.hxx"
 
 #include "SMDS_SetIterator.hxx"
+#include "ObjectPool.hxx"
 #include "SMESHDS_Mesh.hxx"
 
 #include <numeric>
 #include <limits>
 
+#include <boost/make_shared.hpp>
+
 using namespace std;
 
 //#undef WITH_TBB
@@ -45,11 +48,12 @@ SMESHDS_GroupOnFilter::SMESHDS_GroupOnFilter (const int                 theID,
                                               const SMESHDS_Mesh*       theMesh,
                                               const SMDSAbs_ElementType theType,
                                               const SMESH_PredicatePtr& thePredicate)
-  : SMESHDS_GroupBase(theID,theMesh,theType),
+  : SMESHDS_GroupBase( theID, theMesh, theType ),
+    SMDS_ElementHolder( theMesh ),
     myMeshInfo( SMDSEntity_Last, 0 ),
-    myMeshModifTime(0),
-    myPredicateTic(0),
-    myNbElemToSkip(0)
+    myMeshModifTime( 0 ),
+    myPredicateTic( 0 ),
+    myNbElemToSkip( 0 )
 {
   SetPredicate( thePredicate );
 }
@@ -532,3 +536,38 @@ SMESHDS_GroupOnFilter::setNbElemToSkip( SMDS_ElemIteratorPtr& okElemIt )
   }
   return firstOkElem;
 }
+
+//================================================================================
+/*!
+ * \brief Return elements before mesh compacting
+ */
+//================================================================================
+
+SMDS_ElemIteratorPtr SMESHDS_GroupOnFilter::getElements()
+{
+  return boost::make_shared< SMDS_ElementVectorIterator >( myElements.begin(), myElements.end() );
+}
+
+//================================================================================
+/*!
+ * \brief clear myElements before re-filling after mesh compacting
+ */
+//================================================================================
+
+void SMESHDS_GroupOnFilter::tmpClear()
+{
+  std::vector< const SMDS_MeshElement*> newElems( myElements.size() );
+  myElements.swap( newElems );
+  myElements.clear();
+}
+
+//================================================================================
+/*!
+ * \brief Re-fill myElements after mesh compacting
+ */
+//================================================================================
+
+void SMESHDS_GroupOnFilter::add( const SMDS_MeshElement* element )
+{
+  myElements.push_back( element );
+}