How to remove point data that doesn’t have any corresponding trajectory information?

The best workflow to use to remove the point data for which you do not have trajectories is to:

  1. Modify line numbering to set all points to have the same line number, say 999.
  2. Deduce using time to assign flight line numbers from the trajectories to the points.
  3. Delete those points that remain in line 999 as they do not have corresponding trajectories.
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