-- File:	PGeom_TrimmedCurve.cdl
-- Created:	Mon Mar  1 11:45:30 1993
-- Author:	Philippe DAUTRY
--		<fid@phylox>
-- Copyright:	 Matra Datavision 1993


class TrimmedCurve from PGeom inherits BoundedCurve from PGeom

        ---Purpose :
        --  Defines a portion of a curve limited by two values of 
        --  parameters inside the parametric domain of the curve.
        --  
	---See Also : TrimmedCurve from Geom.


uses Curve from PGeom

is


  Create returns mutable TrimmedCurve from PGeom;
	---Purpose: Creates a TrimmedCurve with default values.
    	---Level: Internal 


  Create (
    	aBasisCurve: Curve from PGeom;
    	aFirstU, aLastU: Real from Standard)
     returns mutable TrimmedCurve from PGeom;
        ---Purpose : Creates a TrimmedCurve with these field values.
    	---Level: Internal 


  FirstU(me : mutable; aFirstU: Real from Standard);
        ---Purpose : Set the value of the field firstU with <aFirstU>.
    	---Level: Internal 


  FirstU(me) returns Real from Standard;
        ---Purpose : Returns the value of the field firstU.
    	---Level: Internal 


  LastU(me : mutable; aLastU: Real from Standard);
        ---Purpose : Set the value of the field lastU with <aLastU>.
    	---Level: Internal 


  LastU(me) returns Real from Standard;
        ---Purpose : Returns the value of the field lastU.
    	---Level: Internal 


  BasisCurve (me: mutable; aBasisCurve: Curve from PGeom);
        ---Purpose : Set the value of the field basisCurve with <aBasisCurve>.
        --  This curve can be a trimmed curve.
    	---Level: Internal 


  BasisCurve (me) returns Curve from PGeom;
        ---Purpose : Returns the value of the field basisCurve. 
        --  This curve can be a trimmed curve.
    	---Level: Internal 


fields

    basisCurve : Curve from PGeom;
    firstU     : Real from Standard;
    lastU      : Real from Standard;

end;