-- File:	TopOpeBRep_FFTransitionTool.cdl
-- Created:	Thu Oct 27 11:03:17 1994
-- Author:	Jean Yves LEBEY
--		<jyl@bravox>
---Copyright:	 Matra Datavision 1994


class FFTransitionTool from TopOpeBRep


uses

    LineInter from TopOpeBRep,
    VPointInter from TopOpeBRep,
    Orientation from TopAbs,
    Transition from TopOpeBRepDS,
    Shape from TopoDS
    
is

    ProcessLineTransition(myclass;
    	                  P : VPointInter from TopOpeBRep;
    	      	    	  Index : Integer from Standard;
              	    	  EdgeOrientation : Orientation from TopAbs)
    returns Transition from TopOpeBRepDS;

    ProcessLineTransition(myclass;
    	      	    	  P : VPointInter from TopOpeBRep;
    	      	    	  L : LineInter from TopOpeBRep)
    returns Transition from TopOpeBRepDS;

    ProcessEdgeTransition(myclass;
    	      	    	  P : VPointInter from TopOpeBRep;
    	      	    	  Index : Integer from Standard; 
              	    	  LineOrientation : Orientation from TopAbs)
    returns Transition from TopOpeBRepDS;

    ProcessFaceTransition(myclass;
    	      	    	  L : LineInter from TopOpeBRep;
    	      	    	  Index : Integer from Standard; 
    	      	    	  FaceOrientation : Orientation from TopAbs)
    returns Transition from TopOpeBRepDS;

    ProcessEdgeONTransition(myclass;
    	    	    	    VP : VPointInter from TopOpeBRep;
			    Index : Integer;       -- index of face <F>
			    R : Shape from TopoDS; -- edge "IntPatch_Restriction"
			    E : Shape from TopoDS; -- edge supporting <VP>
			    F : Shape from TopoDS) -- face <Index> containing E
    ---Purpose: compute transition on "IntPatch_Restriction line" edge <R>
    -- when crossing edge <E> of face <F> at point <VP>. 
    -- VP is given on edge <E> of face <F> of index <Index> (1 or 2).
    -- <VP> has been classified by FacesFiller as TopAbs_ON an edge <R>
    -- of the other face than <F> of current (face/face) intersection.
    -- Transition depends on the orientation of E in F.
    -- This method should be provided by IntPatch_Line (NYI)
    returns Transition from TopOpeBRepDS;

    
end FFTransitionTool from TopOpeBRep;