#include <TopTools_IndexedMapOfShape.hxx>
#include <TopTools_ListOfShape.hxx>
class IntTools_Context;
-class BOPDS_DS;
-class BOPAlgo_SectionAttribute;
class BOPDS_PaveBlock;
-class BOPDS_CommonBlock;
class gp_Pnt;
class BOPDS_Curve;
class TopoDS_Vertex;