[pdal] Stats Filter

Andrew Bell andrew.bell.ia at gmail.com
Fri Jun 12 08:00:08 PDT 2015


On Fri, Jun 12, 2015 at 3:32 AM, Kramer, Oscar <OKramer at radiantblue.com>
wrote:

>  Hi,
>
> I constructed a reader pipeline with a StatsFilter to determine the
> geographic bounds of a LAS file. The minimums and maximums (X, Y, Z)
> however were not the same as those that I latched in a conventional scan
> over all points. In fact, there were points over ten meters beyond the
> boundaries determined via StatsFilter. Does StatsFilter take a statistical
> sampling of points so that extremes might be missed? Is there some property
> I should set to make sure all points are considered?
>

The stats filter does not statistically sample.  The behavior you're
describing seems incorrect.  I'd need more information to investigate.  If
you have a small file you could provide, I could look.  I'd also need to
know how you "conventionally scanned" the points.

Thanks,

-- 
Andrew Bell
andrew.bell.ia at gmail.com
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