[pdal] Tagged releases for Hexer and Nitro

Howard Butler howard at hobu.co
Wed Feb 5 06:47:17 PST 2014


Hmm, I don't know what you're sorry about :)

I think it should be possible to do this through a filters.programmable that modifies the Z values with a (raw) value fetched from a GDAL raster through gdal.py. It's definitely not going to be fast, but it should be possible.

Howard

On Feb 5, 2014, at 7:13 AM, Newcomb, Doug <doug_newcomb at fws.gov> wrote:

> Sorry about that,
> I appreciate all of the great work done on creating the liblas,laspy, and pdal software.  As an occasional python scripter, I'm still trying to work my way through the documentation.
> 
> Doug
> 
> 
> On Tue, Feb 4, 2014 at 12:26 PM, Newcomb, Doug <doug_newcomb at fws.gov> wrote:
> Howard,
> So, which would you use for large lidar data files  (3 billion + points) that you want to alter with information from an elevation raster?
> Laspy, trying to work around it's desire to load all of the points in memory at the same time, or the plang option in pdal with pipelines.  



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