-- Created on: 1993-05-12
-- Created by: Jacques GOUSSARD
-- Copyright (c) 1993-1999 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 ArcTool from Contap
    (TheArc as any )


    ---Purpose: Template class for a tool on the restriction of
    --          a surface.
    -- It is possible to implement this class with an instantiation
    -- of the class CurveTool from Adaptor3d.


uses Pnt2d from gp,
     Vec2d from gp

is

    Value(myclass; A: TheArc; X: Real from Standard)
    
	---Purpose: Returns the value in the parametric space
	--          of the surface S, of the point of parameter X
	--          on the arc A.

    	returns Pnt2d from gp;


    D1(myclass; A: TheArc; X: Real from Standard;
                P      : out Pnt2d from gp;
                D2D    : out Vec2d from gp);
    
	---Purpose: Returns the value and the first derivatives in
	--          the parametric space of the surface S of the point
	--          at parameter X on the arc A.


    Resolution(myclass; A: TheArc; Tol3d: Real from Standard)

        ---Purpose :  Returns the parametric resolution corresponding
        --         to the space resolution Tol3d.

    	returns Real from Standard;


end ArcTool;