0.0  0.0
  0.0  0.5
  0.0  1.0
  0.0  1.5
  0.0  2.0
  0.5  0.0
  0.5  0.5
  0.5  1.0
  0.5  1.5
  0.5  2.0
  1.0  0.0
  1.0  0.5
  1.0  1.0
  1.0  1.5
  1.0  2.0
  1.5  0.0
  1.5  0.5
  1.5  1.0
  1.5  1.5
  1.5  2.0
  2.0  0.0
  2.0  0.5
  2.0  1.0
  2.0  1.5
  2.0  2.0
  2.5  0.0
  2.5  0.5
  2.5  1.0
  2.5  1.5
  2.5  2.0
  3.0  0.0
  3.0  0.5
  3.0  1.0
  3.0  1.5
  3.0  2.0
  3.5  0.0
  3.5  0.5
  3.5  1.0
  3.5  1.5
  3.5  2.0
  4.0  0.0
  4.0  0.5
  4.0  1.0
  4.0  1.5
  4.0  2.0
  4.5  0.0
  4.5  0.5
  4.5  1.0
  4.5  1.5
  4.5  2.0
  5.0  0.0
  5.0  0.5
  5.0  1.0
  5.0  1.5
  5.0  2.0
  5.5  0.0
  5.5  0.5
  5.5  1.0
  5.5  1.5
  5.5  2.0
  6.0  0.0
  6.0  0.5
  6.0  1.0
  6.0  1.5
  6.0  2.0