-- File:	Coincidence.cdl
-- Created:	Thu Aug 20 18:06:13 1992
-- Author:	Christophe MARION
--		<cma@sdsun1>
---Copyright:	 Matra Datavision 1992

class Coincidence from HLRAlgo

	---Purpose: The Coincidence class is used in an Inteference to
	--          store informations on the "hiding" edge.
	--          
	--          2D  Data : The  tangent  and the  curvature of the
	--          projection of the edge  at the intersection point.
	--          This is necesserary  when the intersection  is  at
	--          the extremity of the edge.
	--          
	--          3D   Data  :  The   state of  the   edge  near the
	--          intersection   with  the face (before  and after).
	--          This is necessary  when the  intersection is  "ON"
	--          the face.

uses
    Integer from Standard,
    Real    from Standard,
    State   from TopAbs

is
    Create returns Coincidence from HLRAlgo;
    
    Set2D(me : in out; FE    : Integer from Standard;
                       Param : Real    from Standard)
    	---C++: inline
    is static;
    
    SetState3D(me : in out; stbef,staft : State from TopAbs)
    	---C++: inline
    is static;

    Value2D(me; FE    : out Integer from Standard;
                Param : out Real    from Standard)
    	---C++: inline
    is static;
    
    State3D(me; stbef,staft : out State from TopAbs)
    	---C++: inline
    is static;
	    
fields
    myFE    : Integer from Standard;
    myParam : Real    from Standard;
    myStBef : State from TopAbs;
    myStAft : State from TopAbs;

end Coincidence;