[pdal] Can we drop dimensions to save memory ?

Wed May 24 06:31:57 PDT 2017

Hello,

I am trying to process a 400 MB LAS file of Mount Rainier downloaded from Open Topography:

https://cloud.sdsc.edu/v1/AUTH_opentopography/PC_Bulk/Rainier/Q46122G12.laz

The dataset contains 82M points.

Firstly, I come across this warning: “Found invalid value of ‘6’ for points’ return number”. Is this a serious issue ?

Secondly, processing this dataset through a pipeline that contains filter.colorinterp, filter.normal, and filter.programmable consumes huge amounts of memory (15 GB).

Is it possible to strip the PointView of all but the essential dimensions (X, Y, Z) in the pipeline to save memory ?

Thanks,

Sébastien

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