-- File:	Approx_2dCurve.cdl
-- Created:	Tue Oct 28 16:28:35 1997
-- Author:	Roman BORISOV
--		<rbv@velox.nnov.matra-dtv.fr>
---Copyright:	 Matra Datavision 1997


class Curve2d from Approx 

	---Purpose: Makes  an  approximation  for  HCurve2d  from  Adaptor3d

uses
    HCurve2d    from  Adaptor2d, 
    Shape  from  GeomAbs, 
    BSplineCurve  from  Geom2d 
    
is
  Create(C2D  :  HCurve2d    from  Adaptor2d; 
    	 First, 
	 Last, 		      
         TolU,  TolV  :  Real; 
	 Continuity  :  Shape  from  GeomAbs; 
         MaxDegree  :  Integer  ; 
         MaxSegments  :  Integer) 
	      
     returns  Curve2d;	 
      
    IsDone(me) returns Boolean from Standard;
    
    HasResult(me) returns  Boolean from Standard;
   
    Curve(me) 
    returns  BSplineCurve  from  Geom2d; 
     
    MaxError2dU(me) returns  Real;  
    MaxError2dV(me) returns  Real;
    
fields
   
  myCurve            : BSplineCurve  from  Geom2d; 
  myIsDone           : Boolean       from  Standard;   
  myHasResult        : Boolean       from  Standard; 
  myMaxError2dU      : Real          from  Standard; 
  myMaxError2dV      : Real          from  Standard; 
  
end Curve2d;