#ifndef _DISTANCE_H
#define _DISTANCE_H
#include "CPstring.h"
#include "list.h"
#include "place.h"
#include "map.h"

// Distance Class:  MapBase object for computing places that are
//                  near a given location
//
// Distance();  -- Constructor
// ~Distance()  -- Destructor
// Function()   -- Function called by apply method
// Report()     -- Reports results of Function
//
//

class Distance : public MapBase<string, List<Place> >
{
  public:
    Distance();
    ~Distance();
    virtual void Function(string & key, List<Place> & value);
    virtual void Report();
  private:
    double ComputeDistance              // computes distance from
	(double lat1, double long1,     // lat1, long1 to lat2, long2
	 double lat2, double long2);
};

#endif