[pdal] pdal pipeline filters.reprojection

[Howard Butler]

> On Feb 18, 2017, at 7:08 PM, Stephen Mather <stephen at smathermather.com> wrote:
> 
> https://smathermather.com/2017/02/18/taking-slices-from-lidar-data-part-viii/

You might use another filters.range to toss out high absolute scan angles, and then sample from the set you have left. This will bias your sampling to get keep more nadir'y points, which may or may not be what you're going after.

Howard