#include <NCollection_IndexedDataMap.hxx>
#include <TopoDS_Face.hxx>
#include <NCollection_Map.hxx>
+#include <Geom_Plane.hxx>
class BRepTopAdaptor_FClass2d;
class HYDROData_LandCoverMap;
-class Handle(Geom_Plane);
typedef NCollection_UBTree <Standard_Integer, Bnd_Box2d> HYDROData_FaceClassifier_BndBoxTree;