Filtering LiDAR data with las2las by scan angle range?

Question

I am using las2las to filter .las data and I would like to filter the data between a scan angle of -15:+15; however the algorithm tells me the following: ?

error bad lexical cast: source type value could not be interpreted.

I using the following as my input:

las2las -i /home/user/input.las -o /home/user/output.las --keep-scan-angle -15-15

How do I filter between a negative and positive range? From -15 to +15?

Answer 1

See the examples on las2las README. The correct way to express this parameter is:

-keep_scan_angle -15 15

The full code would be:

las2las -i input.las -o output.las -keep_scan_angle -15 15

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_{For filtering LiDAR data by scan angle with other software, refer to: How to filter LiDAR data by scan angle?}