#include <TopAbs_State.hxx>
#include <TopAbs_Orientation.hxx>
#include <TopAbs_ShapeEnum.hxx>
-class TopoDS_Shape;
class gp_Pnt;
class gp_Pnt2d;
class TopOpeBRepDS_Transition;
-class TopoDS_Vertex;
//! Describes the intersection of a face and an edge.