-- File:	MAT2d_SketchExplorer.cdl
-- Created:	Mon Jul 12 12:07:58 1993
-- Author:	Yves FRICAUD
--		<yfr@phylox>
---Copyright:	 Matra Datavision 1993


deferred class SketchExplorer from MAT2d

	---Purpose: SketchExplorer  is  an iterator on  a  sketch.   A
	--          sketch is a set of contours, each contour is a set
	--          of curves from Geom2d.

uses

    Curve           from Geom2d
is
    
    NumberOfContours(me)
	--- Purpose : Returns the number of contours in the figure.
    returns Integer;
       
    Init(me : in out ; ContourIndex : Integer );
	--- Purpose : Initializes the curves explorer on the contour
	--            of range <ContourIndex>.           
   
    More(me) returns Boolean from Standard;
       	--- Purpose: Returns False if  there is no  more curves on the
       	--           current contour.
    
    Next(me : in out);
	--- Purpose  : Moves to the next curve of the current contour.
    
    Value(me) returns Curve from Geom2d; 
        --- Purpose : Returns the current curve on the current contour.
    

end SketchExplorer;