polygon.h

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#ifndef POLYGON_CLASS
#define POLYGON_CLASS
 
/*****************************************************************************\
*                                                                             *
*  Name   : polygon                                                           *
*  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 "cartesian_objects.h"
 
#include <basis/array.h>
 
//hmmm: it might be nice to structuralize this.
//hmmm: also deriving from an array of points is not so great.
 
namespace geometric {
 
class polygon : public basis::array<geometric::cartesian_point>
{
public:
  polygon() {}
  ~polygon() {}
 
  void add(const cartesian_point &to_add);
 
  int points() const { return length(); }
  int sides() const { return points() - 1; }
  
  cartesian_point &operator [] (int index);
 
  bool inside(const cartesian_point &to_check);
 
};
 
} // namespace.
 
#endif