-- File:	BezierSurface.cdl
-- Created:	Fri May 22 10:41:09 1992
-- Author:	Jean Claude VAUTHIER
--		<jcv@sdsun4>
---Copyright:	 Matra Datavision 1992


class BezierSurface 

from DrawTrSurf

inherits Surface from DrawTrSurf

uses BezierSurface from Geom,
     Color from Draw,
     MarkerShape from Draw,
     Display from Draw,
     Drawable3D from Draw

is


  Create (S : BezierSurface from Geom)
        --- Purpose :
        --  creates a drawable Bezier curve from a Bezier curve of 
        --  package Geom.
     returns mutable BezierSurface from DrawTrSurf;



  Create (S : BezierSurface from Geom;
          NbUIsos, NbVIsos : Integer;
          BoundsColor, IsosColor, PolesColor : Color from Draw;
          ShowPoles : Boolean; Discret : Integer;Deflection : Real;
          DrawMode : Integer)
     returns mutable BezierSurface from DrawTrSurf;


  DrawOn (me; dis : in out Display from Draw)
     is redefined static;


  ShowPoles  (me : mutable)
     is static;


  ClearPoles (me : mutable)
     is static;
  

  FindPole(me; X,Y : Real; D : Display from Draw; Prec : Real; 
           UIndex, VIndex : in out Integer)
  is static;
  

  SetPolesColor (me : mutable; aColor : Color from Draw)
        ---C++: inline
     is static;


  PolesColor (me)  returns Color from Draw
        ---C++: inline
     is static;
    
  Copy(me) returns mutable Drawable3D from Draw
	---Purpose: For variable copy.
  is redefined;
  
  
fields

  drawPoles   : Boolean;
  polesLook  : Color from Draw;

end BezierSurface;