-- Created on: 1997-02-11
-- Created by: Alexander BRIVIN and Dmitry TARASOV
-- Copyright (c) 1997-1999 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.



class Normal from Vrml inherits  TShared  from  MMgt

	---Purpose: defines a Normal node of VRML specifying properties of geometry
	---          and its appearance.
    	--  This node defines a set of 3D surface normal vectors to be used by vertex-based shape
      	--  nodes (IndexedFaceSet, IndexedLineSet, PointSet) that follow it in the scene graph. This
      	--  node does not produce a visible result during rendering; it simply replaces the current
       	--  normals in the rendering state for subsequent nodes to use. This node contains one
       	--  multiple-valued field that contains the normal vectors. 
uses
 
  HArray1OfVec  from  TColgp 

is
 
    Create  (  aVector :  HArray1OfVec  from  TColgp  ) 
      returns  mutable Normal from Vrml;

    Create  returns  mutable  Normal  from  Vrml; 
    
    SetVector ( me  :  mutable;  aVector : HArray1OfVec  from  TColgp );
    Vector ( me )  returns  HArray1OfVec  from  TColgp;

    Print  ( me;  anOStream: in out OStream from Standard) returns OStream from Standard;
    ---C++:  return  & 

fields
 
    myVector  :  HArray1OfVec  from  TColgp;  -- Normal vector(s)

end Normal;