[pdal] pgpointcloud writer compression

[Andrew Bell]

I've opened the following ticket to address the issue:

https://github.com/PDAL/PDAL/issues/2050

On Fri, Jun 8, 2018 at 2:01 PM Lars <laasunde at hotmail.com> wrote:

> Andrew ,
>
> The below is from pgpointcloud documentation and it appears pgpointcloud
> handles compression stuff. So if PDAL could set lazperf compression type in
> schema, it might work 😊
>
> "If you are writing your own loading system and want to write into
> Pointcloud types, create well-known binary inputs, in uncompressed format.
> If you schema indicates that your patch storage is compressed, Pointcloud
> will automatically compress your patch before storing it, so you can create
> patches in uncompressed WKB without worrying about the nuances of
> particular internal compression schemes."
>
> ------------------------------
> *Fra:* Andrew Bell <andrew.bell.ia at gmail.com>
> *Sendt:* fredag 8. juni 2018 15.41
> *Til:* Lars
> *Kopi:* pdal at lists.osgeo.org
> *Emne:* Re: [pdal] pgpointcloud writer compression
>
> Perhaps I misspoke. PDAL does no compression for pgpointcloud.  Perhaps
> postgres does compression on its own.  We do set "dimensional" or "ght"
> compression types in the pointcloud schema if they're set as options. We do
> nothing with lazperf WRT pgpointcloud.
>
> On Fri, Jun 8, 2018 at 6:17 AM, Lars <laasunde at hotmail.com> wrote:
>
> Andrew,
>
> Just to make sure I understand this, you are saying that pgpointcloud does
> not support laz compression?
>
> I am sure you know this but pgpointcloud must be built with LAZPERF enable
> in order to work.
>
> Do you know if a pgpointcloud ticket has been created for this problem?
>
> kind regards, Lars
>
> ------------------------------
> *Fra:* Andrew Bell <andrew.bell.ia at gmail.com>
> *Sendt:* torsdag 7. juni 2018 16.22
> *Til:* Lars
> *Kopi:* pdal at lists.osgeo.org
> *Emne:* Re: [pdal] pgpointcloud writer compression
>
> On Thu, Jun 7, 2018 at 10:08 AM, Lars <laasunde at hotmail.com> wrote:
>
> Hello,
>
> Does pdal have any plans to support laz compression for pgpointcloud
> writer? This compression type is support by PostGIS pgpointcloud extension.
>
>
> This has been broken from the beginning - there is no compression support
> at all despite advertising it. I don't know the history. It predates my
> involvement.
>
> If you'd like to make a pull request with some code, that would be great.
>
> --
> Andrew Bell
> andrew.bell.ia at gmail.com
>
>
>
>
> --
> Andrew Bell
> andrew.bell.ia at gmail.com
>


-- 
Andrew Bell
andrew.bell.ia at gmail.com
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