anim3D/src/Clock.i3

 Copyright (C) 1993, Digital Equipment Corporation                         
 All rights reserved.                                                      
 See the file COPYRIGHT for a full description.                            
                                                                           
 Created by Marc Najork                                                    
 Last modified on Thu Feb 24 09:43:12 PST 1994 by najork                   


 Animations in the 3D animation library are specified in terms of their
   duration (as opposed to in terms of number of frames etc.). A Clock.T
   is an object that represents the clock used by the animation server to
   drive the animation. A Clock.T object encapsulates a real-time clock;
   subtypes of Clock.T may encapsulate other kinds of clocks. For instance,
   a ZeusClock.T is a clock whose speed is determined by the animation
   speed slider in the Zeus control panel. 


INTERFACE Clock;

TYPE
  T <: Public;
  Public = OBJECT
  METHODS
    init () : T;
    time () : LONGREAL;
  END;

 The init method initializes a new Clock.T object. The time method
   returns the current time of this clock. 

END Clock.