-- File:	ShapeUpgrade_ConvertCurve2dToBezier.cdl
-- Created:	Thu May 13 13:51:24 1999
-- Author:	data exchange team
--		<det@friendox.nnov.matra-dtv.fr>
---Copyright:	 Matra Datavision 1999

class ConvertCurve2dToBezier from ShapeUpgrade inherits SplitCurve2d from ShapeUpgrade

    ---Purpose: converts/splits a 2d curve to a list of beziers

uses

    HSequenceOfCurve from TColGeom2d,
    HSequenceOfReal from TColStd  

is

    Create returns ConvertCurve2dToBezier from ShapeUpgrade;
    	---Purpose: Empty constructor.
    
    Compute(me: mutable) is redefined;
    	---Purpose: Converts curve into a list of beziers, and stores the 
    	--          splitting parameters on original curve.
        
    Build (me: mutable; Segment: Boolean) is redefined;
    	---Purpose: Splits a list of beziers computed by Compute method according
	--          the split values and splitting parameters.

    Segments(me) returns HSequenceOfCurve from TColGeom2d is private;
    	---Purpose: Returns the list of bezier curves correspondent to original
	--          curve.
    
    SplitParams(me) returns HSequenceOfReal from TColStd;
    	---Purpose: Returns the list of splitted parameters in original curve
	--          parametrisation.
    
fields

   mySegments   : HSequenceOfCurve from TColGeom2d;
   mySplitParams: HSequenceOfReal from TColStd;
    
end ConvertCurve2dToBezier;