[pdal] PDAL on colab

[lefsky at gmail.com]

Thanks for this- I'll be trying it out soon.

One more question. Do you have any plans to add a routine to do
voxelization of point clouds? By voxelization, I mean processing a point
cloud to create a 3d array with either the number of points in each voxel
or the sum of the intensities of the same points. Basically the same thing
that lasvoxel does. I've seen some pdal voxelization routines, but they
seem to be written with subsampling in mind. Perhaps one could be
repurposed for this application?

M





On Thu, Feb 29, 2024 at 12:48 PM Howard Butler via pdal <
pdal at lists.osgeo.org> wrote:

> Here's my Colab notebook that does PDAL and Python-PDAL stuff.
>
>
> https://colab.research.google.com/drive/1JQpcVFFJYMrJCfodqP4Nc_B0_w6p5WOV?usp=sharing
>
> There was some work in the past month to get the condacolab thing happy
> again, but that seems to be good now.
>
> Howard
>
>
> On Jan 20, 2024, at 4:01 PM, Rajat Shinde via pdal <pdal at lists.osgeo.org>
> wrote:
>
> I tried to spin up my old Colab notebook for building PDAL from the source
> for PDAL-2.6.2 in a Colab notebook. It works for me, please check it on
> your side as well.
> Here's the link:
> https://colab.research.google.com/drive/1ovjQcVj_-ejTef5f6-iR4wbGeTpqQpuU?usp=sharing
>
> Currently, it stores the files in the local Colab directory which gets
> refreshed every time the session is restarted. You can also mount the
> Gdrive and use that to store files.
>
> Hope this helps!
> Rajat
>
> --
> Dr. Rajat Shinde
> Computer Scientist
> NASA MSFC IMPACT
> The University of Alabama in Huntsville
> Cramer Research Hall/NSSTC 1034
>
> On Sat, Jan 20, 2024 at 3:55 PM Speed, Cole M via pdal <
> pdal at lists.osgeo.org> wrote:
>
>> I have had success using the condacolab library to first install conda in
>> the Colab runtime and then installing pdal. You could follow the syntax in
>> the final comment on this Github issue to give it a try:
>> https://github.com/PDAL/PDAL/issues/2432. This solution was proposed by @Howard
>> Butler <howard at hobu.co>, so he may know a better way to do it these
>> days. I would also be interested to learn if there is a better way to do
>> this!
>>
>> Hope this helps,
>> -Cole
>>
>> ------------------------------
>> *From:* pdal <pdal-bounces at lists.osgeo.org> on behalf of lefsky--- via
>> pdal <pdal at lists.osgeo.org>
>> *Sent:* Saturday, January 20, 2024 1:44 PM
>> *To:* pdal at lists.osgeo.org <pdal at lists.osgeo.org>
>> *Subject:* [pdal] PDAL on colab
>>
>> I've been trying to get pdal to compile on colab using a variety of
>> approaches but always run into a problem.
>>
>> Does anyone have a solution for this?
>>
>> Thanks in advance
>>
>> --
>> Michael Lefsky (He/His)
>> Home Location: HVHF+GH
>> Cell: 970-980-9036
>> http://www.researcherid.com/rid/A-7224-2009
>>
>> *“for being prematurely, and worse, intuitively right — there’s a heavy
>> price. But for being wrong — no, not so long as you’re wrong in a pack."
>> Gary Brecher / Portis*
>>
>> *I acknowledge that I live and work on stolen land. This is the land of
>> the Cheyenne, Arapaho, Ute, and Ocheithi Sakowin people. To learn more
>> about these nations, please visit;
>> http://www.utemountainutetribe.com/
>> http://www.cheyennenation.com/
>> https://cheyenneandarapaho-nsn.gov/
>> https://native-land.ca/
>>
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-- 
Michael Lefsky (He/His)
Home Location: HVHF+GH
Cell: 970-980-9036
http://www.researcherid.com/rid/A-7224-2009

*“for being prematurely, and worse, intuitively right — there’s a heavy
price. But for being wrong — no, not so long as you’re wrong in a pack."
Gary Brecher / Portis*

*I acknowledge that I live and work on stolen land. This is the land of the
Cheyenne, Arapaho, Ute, and Ocheithi Sakowin people. To learn more about
these nations, please visit;
http://www.utemountainutetribe.com/
http://www.cheyennenation.com/
https://cheyenneandarapaho-nsn.gov/
https://native-land.ca/
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