-- File:	PBRep_CurveOnClosedSurface.cdl
-- Created:	Tue Jul  6 10:16:47 1993
-- Author:	Remi LEQUETTE
--		<rle@phylox>
-- Update:      Frederic MAUPAS
---Copyright:	 Matra Datavision 1993


class CurveOnClosedSurface from PBRep inherits CurveOnSurface from PBRep

	---Purpose: Representation  of a    curve by two  pcurves   on
	--          a closed surface.

uses
    Curve    from PGeom2d,
    Surface  from PGeom,
    Location from PTopLoc,
    Pnt2d    from gp,
    Shape    from GeomAbs

is

    Create(PC1, PC2 : Curve    from PGeom2d;
    	   CF       : Real     from Standard;
    	   CL       : Real     from Standard;
    	   S        : Surface  from PGeom;
	   L        : Location from PTopLoc;
	   C        : Shape    from GeomAbs)
    returns mutable CurveOnClosedSurface from PBRep;
    	---Purpose: CF is curve first parameter
    	--          CL is curve last parameter
    	--          The two curves are SameParameter.
    	--          As far as they can't be computed from a Persistent Curve
    	--          they are given in the CurveOnClosedSurface constructor

    PCurve2(me) returns  Curve from PGeom2d
    is static;
    	---Level: Internal 
    
    Continuity(me) returns Shape from GeomAbs
    is static;
    	---Level: Internal 

    IsCurveOnClosedSurface(me) returns Boolean
	---Purpose: Returns True.
    is redefined;
    
    IsRegularity(me) returns Boolean
	---Purpose: Returns True
    is redefined;
    
    SetUVPoints2(me : mutable; Pnt1, Pnt2 : Pnt2d from gp);
    
    FirstUV2(me) returns Pnt2d from gp;

    LastUV2(me) returns Pnt2d from gp;
    
fields

    myPCurve2    : Curve from PGeom2d;
    myContinuity : Shape from GeomAbs;
    myUV21       : Pnt2d from gp;
    myUV22       : Pnt2d from gp;

end CurveOnClosedSurface;