[pdal] [Greyhound] Updating fields

[Connor Manning]

I've pushed new Entwine/Greyhound containers under the "alpine" docker tag
- e.g. connormanning/greyhound:alpine.  These will be the new default
"latest" images shortly.  As you've noticed, you'll need to add
`"allowWrite": true` to your Greyhound configuration to use the
GreyhoundWriter functionality.

For the PDAL GreyhoundWriter via Docker, you'll need the `pdal/pdal:master`
image.

Here's also a sample script using a buffered-tile scheme with the
GreyhoundWriter to run the SMRF ground classification algorithm over a
dataset in many small pieces.
https://gist.github.com/connormanning/2b72aa3bab69f7105c6fc4e32935aeca

- Connor

On Fri, Jan 19, 2018 at 2:56 PM, Connor Manning <connor at hobu.co> wrote:

> I'm currently in the process of updating all the Docker containers - the
> PDAL container has switched from Ubuntu to Alpine by default so I'm
> validating the images for the new Entwine/Greyhound containers before
> pushing them out.  That said, you are a bit early on this feature - expect
> things to potentially change a bit until new versions of Entwine/Greyhound
> are released with stable support (and updated development and
> administration docs) for these features.  I'll reply to this once the new
> images are pushed so you can try it out in the meantime.
>
> - Connor
>
> On Fri, Jan 19, 2018 at 2:40 PM, Thomas Montaigu <
> thomas.montaigu at laposte.net> wrote:
>
>> Hello,
>>
>>
>>
>> I’ ve been trying Entwine + Greyhound this week and got something working
>> very easily thanks to the dockers & documentation.
>>
>>
>>
>> I would like to know if it is already possible to update fields of points
>> using greyhound ?
>>
>> From the video of the conference at ‘FOSS4G’ I understand that , at that
>> time updating field was not yet ready.
>>
>> But I’ve seen that there is a Greyhound plugin for PDAL (that I’d maybe
>> like to use to try  adding Greyhound support in CloudCompare).
>>
>>
>>
>> Seeing that this plugin implements a GreyhoundWriter, I tried using the
>> ‘write’ command but the server says:
>>
>> «Caught /write not allowed », which I tried to fix by adding "allowWrite"
>> : true in my config.json (I took the key by searching through the code),
>>
>> but it did not change the error message .
>>
>>
>>
>> My requests looked like this :
>>
>>
>>
>> url = http://ec2_blabblabla:8080/resource/entwine-data-pdlb
>>
>> requests.put(url + "/write?schema:['Classification']", b" \x00\x00")
>>
>>
>>
>> So I am a little bit early on this feature or misdoing something ?
>>
>>
>>
>> Best regards,
>>
>> Thomas
>>
>> _______________________________________________
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>> pdal at lists.osgeo.org
>> https://lists.osgeo.org/mailman/listinfo/pdal
>>
>
>
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