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robj.h

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#ifndef __ROBJ_H__
#define __ROBJ_H__

#include <iostream>
#include <string>
using std::string;

#include "vgen.h"

class Retinal_Obj : public ValueGen {
public:
  typedef double Activity;
  typedef double Angle;
  typedef double Coordinate;
  
  virtual bool next() =0;

  virtual void reset() =0;

  virtual bool update() const =0;

  virtual Activity activation(Coordinate x, Coordinate y) const =0;

  virtual Angle angle() const=0;

  virtual string stringrep() const =0;

  virtual std::ostream& put(std::ostream& s) const {
    return s << this->stringrep();
  }
};


inline std::ostream& operator<<(std::ostream& s, const Retinal_Obj& r) {  return r.put(s); }


#endif /* __ROBJ_H__ */

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