point.h

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#ifndef POINT_CLASS
#define POINT_CLASS

/*****************************************************************************\
*                                                                             *
*  Name   : point                                                             *
*  Author : Chris Koeritz                                                     *
*                                                                             *
*******************************************************************************
* Copyright (c) 1992-$now By Author.  This program is free software; you can  *
* redistribute it and/or modify it under the terms of the GNU General Public  *
* License as published by the Free Software Foundation; either version 2 of   *
* the License or (at your option) any later version.  This is online at:      *
*     http://www.fsf.org/copyleft/gpl.html                                    *
* Please send any updates to: fred@gruntose.com                               *
\*****************************************************************************/

#include "angle.h"

#include <basis/object_base.h>


namespace geometric {


template <class numeric_type>
class point : public packable, public virtual object_base
{
public:
  point(numeric_type x = 0, numeric_type y = 0);
  point(numeric_type r, double_angle theta);

  IMPLEMENT_CLASS_NAME("point");

  void set(numeric_type x, numeric_type y);
  void set(numeric_type r, double_angle theta);

  numeric_type x() const { return _x; }
  numeric_type y() const { return _y; }

  numeric_type r() const;
  double_angle theta() const;

  point rotate(const double_angle &theta) const;

  numeric_type distance(const point &p2) const;

  point operator - () const { return point<numeric_type>(-_x, -_y); }

  numeric_type magnitude() const;

  point operator + (const point &arg2) const;
  point operator - (const point &arg2) const;
  point &operator += (const point &arg2);
  point &operator -= (const point &arg2);
  bool operator == (const point &arg2) const;
  bool operator != (const point &arg2) const;

  istring text_form() const;

  bool from_text(const istring &text);

  virtual void pack(byte_array &packed_form) const;
  virtual bool unpack(byte_array &packed_form);

private:
  numeric_type _x;
  numeric_type _y;
};

} // namespace.

#endif

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