point-ref.h

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// Copyright 2007, Massachusetts Institute of Technology.
// The use of this code is permitted for research only. There is
// absolutely no warranty for this software.
//
// Author: John Lee (jjl@mit.edu)
//

#ifndef POINT_SET_POINT_REF_H
#define POINT_SET_POINT_REF_H

#include "point_set/point-set-list.h"
#include "point_set/feature.h"

namespace libpmk {

class PointSetList;


class PointRef {
 public:
   PointRef(const PointSetList* data, int feature_index);

   PointRef(const PointSetList* data, int which_point_set, int which_point);


   PointRef(const PointSetList* data, int feature_index,
            int which_point_set, int which_point);

   const Feature& GetFeature() const;


   int GetWhichPointSet() const;
   

   int GetWhichPoint() const;
   
   int GetFeatureIndex() const;

 private:
   const PointSetList* data_;

   // References a particular point.
   unsigned int feature_index_;

   // These two variables combined also reference a particular point,
   // but we store both representations for ease of use.
   unsigned short int which_point_set_;
   unsigned short int which_point_;
};
}  // namespace libpmk

#endif  // POINT_SET_POINT_REF_H

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