diff --git a/Solver/filters.h b/Solver/filters.h
index 935e4fa662dcb61edfce8067366b6d6ebfd3c12d..8323bc06de808fc36213acc14cf2349b787a5480 100644
--- a/Solver/filters.h
+++ b/Solver/filters.h
@@ -8,11 +8,13 @@
 //
 //
 
-#ifndef _XFEMFS_H_
-#define _XFEMFS_H_
+#ifndef _FILTERS_H_
+#define _FILTERS_H_
 
 #include "simpleFunction.h"
 #include "dofManager.h"
+#include "GModel.h"
+#include "groupOfElements.h"
 
 class FilterNodeEnriched
 {
@@ -64,5 +66,60 @@ class FilterNodeEnriched
 //    }
 };
 
+class FilterElementsCutByLevelSet
+{
+
+  private :
+
+		std::set<int> _TagEnrichedVertex;
+    std::pair<int,int> _LevelSetEntity;
+    std::set<int> *_EnrichComp;
+
+  public :
+
+    FilterElementsCutByLevelSet(std::pair<int,int> LevelSetEntity , std::set<int> * EnrichComp)
+    {
+			
+			_EnrichComp = EnrichComp;
+      _LevelSetEntity = LevelSetEntity;
+			
+			// groupOfElements to get all the elements associate with the level set -- (work with *current GModel)
+			groupOfElements *LevelSetElements = new groupOfElements (_LevelSetEntity.first, _LevelSetEntity.second);
+		
+			// tag enriched vertex determination
+			std::set<MElement*>::const_iterator it = LevelSetElements->begin();
+			for (; it != LevelSetElements->end(); it++)
+			{
+				MElement *e = *it;
+				if (e->getParent()) // if element got parents
+				{
+					for (int k = 0; k < e->getParent()->getNumVertices(); ++k)
+					{  // for all vertices in the element parent
+						_TagEnrichedVertex.insert(e->getParent()->getVertex(k)->getNum());
+					}
+				}
+			}
+			
+    }
+
+    virtual bool operator () (Dof & key) const
+    {
+      std::set<int>::iterator it1;
+      std::set<int>::iterator it2;
+      int i1,i2;
+      Dof::getTwoIntsFromType(key.getType(), i1,i2);
+       it2 = _EnrichComp->find(i1);
+      it1 = _TagEnrichedVertex.find(key.getEntity());
+      if (it1!=_TagEnrichedVertex.end() & it2 != _EnrichComp->end())
+      {
+        return true;
+      }
+      else return false;
+    }
+
+
+};
+
+
 
 #endif