Authored by Rong

commit by shell

1 -2.01704E+15,51547854,2250362  
2 -2.01704E+15,51547854,2250364  
3 -2.01704E+15,51547854,2250366  
4 -2.01704E+15,51547854,2250368 1 +2017041011243765,51547854,2250362
  2 +2017041011243765,51547854,2250364
  3 +2017041011243765,51547854,2250366
  4 +2017041011243765,51547854,2250368