0  0
  0  0.587859
  0  1.06497
  0  1.51869
  0  2
  0.479986  1.49105
  0.495326  1.03307
  0.5  2
  0.550653  0.555153
  0.587859  0
  1  1
  1  1.5
  1  2
  1.01541  0.475838
  1.06497  0
  1.48761  0.519304
  1.5  1
  1.51869  0
  2  0
  2  0.5
  2  1