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disk2d.cc
1 // Copyright (C) 2007, 2008, 2009 EPITA Research and Development Laboratory (LRDE)
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24 // executable file might be covered by the GNU General Public License.
25 
26 #include <cmath>
27 #include <mln/win/disk2d.hh>
28 
29 
30 int main()
31 {
32  using namespace mln;
33 
34  const unsigned l = 55;
35  const unsigned l2 = 27 * 27;
36  win::disk2d disk(l);
37 
38  mln_assertion(disk.delta() == 27);
39 
40  for (def::coord x = -30; x <= 30; ++x)
41  for (def::coord y = -30; y <= 30; ++y)
42  {
43  mln_assertion((std::abs(x) <= 27 && std::abs(y) <= 27) ||
44  ! disk.has(dpoint2d(y, x)));
45  mln_assertion(((x * x + y * y) <= static_cast<int>(l2)) == disk.has(dpoint2d(x, y)) ||
46  std::abs(x) > 27 ||
47  std::abs(y) > 27);
48  }
49 }