-- Created on: 1992-03-27
-- Created by: Laurent BUCHARD
-- Copyright (c) 1992-1999 Matra Datavision
-- Copyright (c) 1999-2012 OPEN CASCADE SAS
--
-- The content of this file is subject to the Open CASCADE Technology Public
-- License Version 6.5 (the "License"). You may not use the content of this file
-- except in compliance with the License. Please obtain a copy of the License
-- at http://www.opencascade.org and read it completely before using this file.
--
-- The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
-- main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
--
-- The Original Code and all software distributed under the License is
-- distributed on an "AS IS" basis, without warranty of any kind, and the
-- Initial Developer hereby disclaims all such warranties, including without
-- limitation, any warranties of merchantability, fitness for a particular
-- purpose or non-infringement. Please see the License for the specific terms
-- and conditions governing the rights and limitations under the License.




deferred generic class ParTool from IntImpParGen
    (ParCurve as any)

	---Purpose: Template class for a tool on a parametrised curve.

uses Pnt2d    from gp,
     Vec2d    from gp,
     Lin2d    from gp

is


    Value (myclass; C: ParCurve; U: Real from Standard)
    
	---Purpose: Returns the point at parameter U on the Curve C.

    	returns Pnt2d from gp;


    D1 (myclass; C:ParCurve; U:Real from Standard ;
        P: out Pnt2d; T: out Vec2d);

        ---Purpose: Computes the Point and the First derivative of 
        --          the parametric curve C at parameter U.


    D2 (myclass; C:ParCurve; U:Real from Standard ;
        P: out Pnt2d; T,N: out Vec2d);
    
        ---Purpose: Computes the Point, the First and the Second derivative of 
        --          the parametric curve C at parameter U.


    EpsX (myclass; C: ParCurve)

       	---Purpose: Returns the valuec of the parametric tolerance
       	--          on the curve C.
   
    	returns Real from Standard;
    

    NbSamples(myclass; C: ParCurve)

      	---Purpose: NbSamples is the number of sample point used to 
    	--          polygonise the parametric curve on its domain.

    	returns Integer from Standard;
 

end ParTool;