[pdal] serving Entwine Point Cloud (Sion Williams)

Fri Aug 16 14:25:22 PDT 2024

Hello Sion,
I was in Wales last month, I'd love to see some of the LiDAR! It's a
beautiful country.

To serve COPC local and/or remote (web server and cloud) I first downloaded
and built potree according to the docs - see Getting Started at
https://github.com/potree/potree
As per the docs I just upload the Potree folder with all point clouds, the
build directory, and your html files to a web server. You can optimize
things by deleting a lot of content from the potree directory such as demo
point clouds, shape files, example html, etc... I don't serve point clouds
from the web server filesystem as the storage is cheaper in a cloud bucket.

There is a copc.html example which you can use - just read through the
source and adapt for either a local path or an http URL. I put my copc
files in a google cloud bucket and then open the bucket up for CORS and
HTTP.
If you just want to try serving from the filesystem you could modify line
57: var path = "../pointclouds/lion_takanawa.copc.laz";  and drop your copc
file into the folder.

Here's an example of one of my copc files - this is a large area (15,000+
acres) but it's only the ground points.
https://mappalachian.info/potree/viewer/copc2.html?r=https://storage.googleapis.com/mappalachian-entwine/lickstone/Lickstone_Surface_MergedSlope.copc.laz.
It's 2.5GB. You can check the source of copc2.html to see what changes I
made. I will say that for very large copc files you can really hurt a
browser... (uses lots of memory) This example is about 250MB and it's much
more responsive.
https://mappalachian.info/potree/viewer/copc2.html?r=https://storage.googleapis.com/mappalachian-entwine/lickstone/NEPA_Unit_11_HAGDEM_EPSG3857.copc.laz

regards,
Nick

On Fri, Aug 16, 2024 at 3:19 PM <pdal-request at lists.osgeo.org> wrote:

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> Today's Topics:
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>    1. serving Entwine Point Cloud (Sion Williams)
>    2. Re: filters.python not available after install pdal and
>       pdal-plugins (Howard Butler)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Fri, 16 Aug 2024 10:46:10 +0100
> From: Sion Williams <sionwill at googlemail.com>
> To: pdal at lists.osgeo.org
> Subject: [pdal] serving Entwine Point Cloud
> Message-ID:
>         <
> CAJW_ZYWuibAO_2rnzuid9q_sXw0gH48PWbEoNS4H172qfh4X0Q at mail.gmail.com>
> Content-Type: text/plain; charset="utf-8"
>
> Hi everyone,
>
> I?ve created a Virtual Point Cloud(VPC) of Wales using PDAL and related
> tools, consisting of 27,000 tiles, each covering 1 km?. I?ve successfully
> generated some large Entwine Point Cloud (EPT) files from this data, which
> I can view through QGIS.
>
> However, I?d like to explore the dataset using COPC Viewer and possibly
> Potree, but I?m having trouble serving the data on a local server. My goal
> is to host it locally to showcase just how impressive the dataset is.
>
> I haven't got the grasp of servers and networks before,  I?ve tried
> following various guides and using ChatGPT, but I think I might be missing
> something simple as everything else has been relatively straightforward.
> I?d prefer not to use a cloud service due to cost and bandwidth
> constraints.
>
> Does anyone have suggestions on how to easily serve the data locally? I
> have access to both a Windows Docker environment and a Linux Mint OS.
>
> Thanks in advance!
>
> Cheers,
> Sion
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> Message: 2
> Date: Fri, 16 Aug 2024 13:44:06 -0500
> From: Howard Butler <howard at hobu.co>
> To: Dom Jaskierniak <dom.jaskierniak at environment.nsw.gov.au>
> Cc: "pdal at lists.osgeo.org" <pdal at lists.osgeo.org>
> Subject: Re: [pdal] filters.python not available after install pdal
>         and pdal-plugins
> Message-ID: <82E73916-4DCF-40E4-B753-480A772E91C8 at hobu.co>
> Content-Type: text/plain; charset="utf-8"
>
> I confirmed this is an issue.
>
> The story is with how conda-forge registers where the plugin path. There
> has been some back and forth about how we should do that.
>
> Here's one way you might be able to get it going:
>
> print where your plugins live
> > python -m pdal --pdal-plugin-path
>
> set PDAL_DRIVER_PATH="result from above"
>
> Another alternative might be something like this to keep the previous
> value of PDAL_DRIVER_PATH
>
> > python -m pdal --pdal-plugin-path > pdal-plugin-path
> > set /p PDAL_PLUGIN_PATH= < pdal-plugin-path
> > DEL pdal-plugin-path
>
> I'm tracking this issue at
> https://github.com/conda-forge/python-pdal-feedstock/issues/124
>
> Howard
>
>
> > On Aug 16, 2024, at 12:37?AM, Dom Jaskierniak via pdal <
> pdal at lists.osgeo.org> wrote:
> >
> > Hi,? <>
> >
> > Although I have the below two packages in my venv:
> >
> > python-pdal 3.4.5 py312h61d12cd_4 conda-forge
> > pdal-plugins 1.5.2 pypi_0 pypi
> >
> > I cant seem to find:
> >
> > libpdal_plugin_filter_python.dll
> >
> > in Library\lib and Library\bin of anaconda3\env. Using pdal --drivers
> confirms that I don't have filters.python which I would like to have to run
> a python function in a pipeline
> > {
> >                 "type": "filters.python",
> >                 "script": "WF_Desktop_YOLO_V5.ipynb",
> >                 "function": "filter_by_treeID_min_z",
> > }
> >
> > Does anyone know why I don?t seem to have access to this plugin?
> >
> > Thank you,
> > Dom
> > Dr Dom Jaskierniak
> > Senior Scientist (Remote Sensing and Landscape Sciences)
> >
> > Science, Economics and Insights Division| Department of Climate Change,
> Energy, the Environment and Water
> > M 0498 206 030  |  E dom.jaskierniak at environment.nsw.gov.au <mailto:
> dom.jaskierniak at environment.nsw.gov.au>
> > Level 3, 6 Stewart Avenue, Newcastle, NSW, 2302
> >
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