-- Created on: 1992-05-21
-- Created by: Jean Claude VAUTHIER
-- Copyright (c) 1992-1999 Matra Datavision
-- Copyright (c) 1999-2014 OPEN CASCADE SAS
--
-- This file is part of Open CASCADE Technology software library.
--
-- This library is free software; you can redistribute it and/or modify it under
-- the terms of the GNU Lesser General Public License version 2.1 as published
-- by the Free Software Foundation, with special exception defined in the file
-- OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
-- distribution for complete text of the license and disclaimer of any warranty.
--
-- Alternatively, this file may be used under the terms of Open CASCADE
-- commercial license or contractual agreement.

class Surface from DrawTrSurf
     
inherits Drawable 

        ---Purpose:  This class defines a drawable surface.
        -- With this class you can draw a general surface from 
        -- package Geom.

uses Surface     from Geom,
     Display     from Draw,
     Color       from Draw,
     Drawable3D  from Draw,
     Interpretor from Draw 

is

  Create (S : Surface from Geom)
        --- Purpose : default drawing mode
        --  Just the middle isoparametric curves are drawn.
        --  The boundaries are yellow, the isoparametric curves are blues.
        --  For the discretisation 50 points are computed in each parametric
        --  direction.
     returns mutable Surface from DrawTrSurf;



  Create (S : Surface from Geom;
          Nu, Nv : Integer;
          BoundsColor, IsosColor : Color from Draw;
          Discret : Integer;
          Deflection : Real;
          DrawMode  : Integer)
     returns mutable Surface from DrawTrSurf;


  BoundsColor (me) returns Color from Draw
        ---C++: inline
     is static;


  ClearIsos (me : mutable) is virtual;
        --- Purpose : rub out all the isoparametric curves.
     

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


  DrawOn (me; dis : in out Display from Draw;
              Iso : Boolean from Standard)
       ---Purpose: Iso = True : Draw the isos, the boundaries, the UVMarker.
       --          Iso = False: Only Draw the boundary and the UVMarker.
  is static;
  
  
  GetSurface (me) returns any Surface from Geom
        ---C++: inline
     is static;


  IsosColor (me) returns Color from Draw
        ---C++: inline
     is static;


  NbIsos (me; Nu, Nb : in out Integer)
        ---C++: inline
     is static;
     

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


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


  ShowIsos (me : mutable; Nu, Nv : Integer) is virtual;
        --- Purpose : change the number of isoparametric curves to be drawn.

  Copy(me) returns mutable Drawable3D from Draw
	---Purpose: For variable copy.
  is redefined;
  
  Dump(me; S : in out OStream)
	---Purpose: For variable dump.
  is redefined;
  
  Whatis(me; I : in out Interpretor from Draw)
	---Purpose: For variable whatis command.
  is redefined;

fields

  surf        : Surface from Geom is protected;
  boundsLook  : Color from Draw   is protected;
  isosLook    : Color from Draw   is protected;
  nbUIsos     : Integer           is protected;
  nbVIsos     : Integer           is protected;

end Surface;