* Location: Pont-l'abbe lat=47.863979 - lon=-4.220712  iy=380  ix=678
540000.000000,0.052650,0.000000,0.052650
543600.000000,0.060093,0.000000,0.060093
547200.000000,0.068337,0.000000,0.068337
550800.000000,0.077694,0.000000,0.077694
550800.000000,0.077694,0.000000,0.077694
