[pdal] upsample

[Connor Manning]

Sounds like you could do this in raster land since you are interested in
1x1 meter cells.  Perhaps the GDAL writer (
https://pdal.io/stages/writers.gdal.html) with a `resolution` of 1 and an
`output_type` of "max".  And then to reinterpret your output as a point
cloud: the GDAL reader (https://pdal.io/stages/readers.gdal.html).

On Fri, Aug 14, 2020 at 3:12 PM Alison Cramer <alisoncramer at nevada.unr.edu>
wrote:

> I have a point cloud of an abandoned mine land with a waste rock pile.
> The waste rock pile has rills (soil removed by erosion) caused by large
> rainfall events.  This causes differences in elevation (z values) within 1
> square meter.  I would like to perform a moving window of 1m along the
> waste rock pile.  This would hopefully give me "cells" of 1m by 1m.  My
> goal is to find the maximum z value in every 1m cell.  Once I find the max
> z value in each 1m cell, I would like to replace the current z values with
> the specific maximum z value calculated for each cell.  Then export to a
> new point cloud.  Does anyone have an idea as to how I would go about this
> in pdal?
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