[pdal] filter on return value

[Howard Butler]

Yes, the only want to do that in PDAL land is the predicate filter. Definitely not as convenient, but it it is much more powerful.

> On Jun 3, 2015, at 9:49 AM, Connor Manning <connor at hobu.co> wrote:
> 
> How about the predicate filter: http://www.pdal.io/stages/filters.predicate.html
> 
> On Wed, Jun 3, 2015 at 8:58 AM, Luca Delucchi <lucadeluge at gmail.com> wrote:
> Hi devs,
> 
> I would like to filter my input las files according the return value
> (first, last ecc).
> 
> Is there anything simple like
> 
> las2las --input in.las --output out.las --last-return-only
> 
> I should use the filter with pdal pipeline but I don't understand
> which filter I have to use...
> 
> --
> ciao
> Luca
> 
> http://gis.cri.fmach.it/delucchi/
> www.lucadelu.org
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