disk2d.cc

// Copyright (C) 2007, 2008, 2009 EPITA Research and Development Laboratory (LRDE)
//
// This file is part of Olena.
//
// Olena 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, version 2 of the License.
//
// Olena is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Olena.  If not, see <http://www.gnu.org/licenses/>.
//
// As a special exception, you may use this file as part of a free
// software project without restriction.  Specifically, if other files
// instantiate templates or use macros or inline functions from this
// file, or you compile this file and link it with other files to produce
// an executable, this file does not by itself cause the resulting
// executable to be covered by the GNU General Public License.  This
// exception does not however invalidate any other reasons why the
// executable file might be covered by the GNU General Public License.

#include <cmath>
#include <mln/win/disk2d.hh>


int main()
{
  using namespace mln;

  const unsigned l = 55;
  const unsigned l2 = 27 * 27;
  win::disk2d disk(l);

  mln_assertion(disk.delta() == 27);

  for (def::coord x = -30; x <= 30; ++x)
    for (def::coord y = -30; y <= 30; ++y)
    {
      mln_assertion((std::abs(x) <= 27 && std::abs(y) <= 27) ||
                    ! disk.has(dpoint2d(y, x)));
      mln_assertion(((x * x + y * y) <= static_cast<int>(l2)) == disk.has(dpoint2d(x, y)) ||
                    std::abs(x) > 27 ||
                    std::abs(y) > 27);
    }
}