[postgis-users] HDF import to Postgis raster

Tom van Tilburg tom.van.tilburg at gmail.com
Thu May 25 10:56:16 PDT 2017


It is generally a better idea to serve your raster from a filesystem
instead of postgis. Postgis only makes sens if you want to query on your
raster data (i.e. give me the number of cells containing water within
distance K of point X), otherwise it only gives needless overhead.

Another option is to look at RASDAMAN (http://www.rasdaman.org/). I haven't
looked at it for a long time but it serves raster data from postgres at
lightning speed. Also, it is closer to HDF storage.


On Thu, May 25, 2017 at 3:44 AM, Brent Wood <Brent.Wood at niwa.co.nz> wrote:

> Hi postgis users!!
> I'm exploring the option of importing HDF grids into Postgis, ideally to
> serve as WMS via Mapserver.
> Never having used PG Raster before, or Mapserver to serve them, I figured
> I'd ask for advice here first!
> The HDF files can be read by GDAL, so I'm assuming an ETL bash script
> could do the upload easily enough.
> I've been serving WMS from Postgis vector data for several years now, so
> should be able to figure that out. I'd prefer to use WMS than WCS if
> possible, I'm not sure what the ramifications are.
> Any advice, comments, examples gratefully received!
> Thanks,
> Brent Wood
> Brent Wood
> Programme leader: Environmental Information Delivery
> DDI:  +64 (4) 3860529
> Brent Wood
> Principal Technician - GIS and Spatial Data Management
> Programme Leader - Environmental Information Delivery
> +64-4-386-0529 | 301 Evans Bay Parade, Greta Point, Wellington |
> www.niwa.co.nz
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