-- File:	TopolTool.cdl
-- Created:	Tue Nov  3 10:59:04 1992
-- Author:	Jacques GOUSSARD
--		<jag@sdsun2>
---Copyright:	 Matra Datavision 1992



deferred generic class TopolTool from IntStart
           ( TheVertex as any;
             TheArc    as any
           )


    ---Purpose: Template class for an iterator the restriction of
    --          a surface.


inherits TShared from MMgt

raises DomainError from Standard

is

-- Arc iterator

    Init(me: mutable)

    	;


    More(me: mutable)

    	returns Boolean from Standard
    	;


    Value(me: mutable)

    	returns any TheArc
    	;


    Next(me: mutable)

    	;


-- Iterator on the vertex of an arc of restriction


    Initialize(me: mutable; A:TheArc)

    	;


    InitVertexIterator(me: mutable)

    	;


    MoreVertex(me: mutable)

    	returns Boolean from Standard
    	;



    Vertex(me: mutable)
    	returns any TheVertex
    	;


    NextVertex(me: mutable)

    	;



    Identical(me: mutable; V1,V2: TheVertex)
    
	---Purpose: Returns True if the vertices V1 and V2 are identical.
	--          This method does not take the orientation of the
	--          vertices in account.

    	returns Boolean;



end TopolTool;