Global Mapper v24.1

Can you explain LIDAR scan angle range?

csnoke
csnoke
in Vector Data

I'm trying to filter LIDAR data based on scan angle so that I only get points that are directly below (nadir) the scanner. Global Mapper suggests that a number between -180 and 180 is required, but I'm having a hard to time understanding what this means.


Is the 0° scan angle straight down, or straight up, or something else? Thanks.

Answers

  • csnoke
    csnoke

    By the way, my lidar processing software thinks 0 is straight up and offers values from 0 to 360... So I'm not sure if this is based on a proprietary standard or if scan angle is based on some file format standard?


    Thanks.

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