4  5  8  1
          0.5  150.  1.0  50.  850.
           62828.  62840.
          42511.  26.852  -73.077
          48991.  27.093  -73.215
          55561.  27.270  -73.478
          62851.  27.365  -73.772
           40591.  64751.
          40591.  42493.
          42558.  44477.
          46957.  48977.
          49001.  50945.
          53745.  55580.
          55651.  58014.
          60796.  62710.
          62790.  64751.