// Swarm library. Copyright (C) 1996 Santa Fe Institute.
// This library is distributed without any warranty; without even the
// implied warranty of merchantability or fitness for a particular purpose.
// See file LICENSE for details and terms of copying.

#import <swarmobject/MessageProbe.h>
#ifdef _TK_
#include <tkobjc.h>
#endif

#ifndef _TK_
typedef id GraphElement;
#endif
// A graph that fetches its data, draws it on a GraphElement
@interface ActiveGraph : MessageProbe {
  GraphElement * element;			  // element to draw on
  id dataFeed;					  // object to read from
}

-setElement: ge;
-setDataFeed: d;
-step;
@end
