-- File:	PGeom2d_Parabola.cdl
-- Created:	Tue Apr  6 17:32:29 1993
-- Author:	Philippe DAUTRY
--		<fid@mastox>
-- Copyright:	 Matra Datavision 1993


class Parabola from PGeom2d  
inherits Conic from PGeom2d

        --- Purpose :
        --  Defines the parabola in the parameterization range  :
        --  ]-infinite,+infinite[
        --  See Also : Parabola from Geom2d.

uses  Ax22d from gp 

is


  Create returns mutable Parabola from PGeom2d;
        ---Purpose : Creates a parabola with default values.
	---Level: Internal 


  Create (aPosition : Ax22d from gp; aFocalLength : Real)
    returns mutable Parabola from PGeom2d;
	---Purpose : Creates a Parabola with <aPosition> and <aFocalLength>
	--         as field values.
	---Level: Internal 


  FocalLength (me : mutable; aFocalLength : Real);
        ---Purpose :   Set the value  of   the  field focalLength with
        --         <aFocalLength>.
	---Level: Internal 


  FocalLength (me)  returns Real;
	---Purpose : Retruns the value of the field focalLength.
	---Level: Internal 


fields

  focalLength : Real;

end;