point.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_H
#define POINT_SET_POINT_H

#include <iostream>
#include <vector>

using namespace std;

namespace libpmk {


class Point {
public:
  Point(int dim);

  Point(const Point& other);
  virtual ~Point() { }

  // Sets this point to be a copy of <other>.
  virtual void CopyFrom(const Point& other);

  int size() const { return features_.size(); }

  int point_dim() const { return size(); }

  float feature(int index) const;

  void set_feature(int index, float value);

  float weight() const { return weight_; }
  void set_weight(float new_weight) { weight_ = new_weight; }

  float& operator[](int index);

  float operator[](int index) const;


  virtual void WriteToStream(ostream& output_stream) const;

  virtual void ReadFromStream(istream& input_stream);

protected:
  float weight_;
  vector<float> features_;
};
}  // namespace libpmk

#endif  // POINT_SET_POINT_H

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