-- File:	BRep_GCurve.cdl
-- Created:	Thu Mar  9 15:21:03 1995
-- Author:	Laurent PAINNOT
--		<lpa@metrox>
---Copyright:	 Matra Datavision 1995



deferred class GCurve from BRep inherits CurveRepresentation from BRep

	---Purpose: Root   class    for    the    geometric     curves
	--          representation. Contains a range.

uses

    Location from TopLoc,
    Pnt      from gp

is

    Initialize(L : Location from TopLoc; First, Last : Real);

    SetRange(me : mutable; First, Last : Real)
	---C++: inline
    is static;
    
    Range(me; First, Last : out Real)
	---C++: inline
    is static;
    
    First(me) returns Real
	---C++: inline
    is static;

    Last(me) returns Real
	---C++: inline
    is static;

    First(me : mutable; F : Real)
	---C++: inline
    is static;

    Last(me : mutable; L : Real)
	---C++: inline
    is static;


    D0(me; U : Real; P : out Pnt from gp)
	---Purpose: Computes the point at parameter U.
    is deferred;
    

    Update(me : mutable)
	---Purpose: Recomputes any derived data after a modification.
	--          This is called when the range is modified.
    is virtual;

fields
    myFirst    : Real;
    myLast     : Real;

end GCurve;