[GRASS-user] Best workflow

[Paul Meems]

Hi list,

I need to do the following and I want to know what is the best workflow.

I have a PostGIS database with polygons.
I have a folder with height-maps in tiff-format.
For each polygon I need to get the height-map.
This smaller height map needs to send to GRASS and several commands need to
be performed.
At the end GRASS will produce a vector file. This vector data needs to be
saved back in PostGIS.

I already did all the steps manually but need to automate it because I will
process all (7M+) polygons. I was planning to set up an Ubuntu server with
the PostGIS database.
Because it is possible a polygon is on the edge of multiple tiff-files I
thought of setting up GeoServer and feed it all tif-files and use WCS to
get the needed height map.
Next do the GRASS commands. I want to use Python to perform all actions.

I'm rather new to GRASS. Is the above workflow the best approach? We will
do all actions once for all polygons. But performance is an issue.

Hope to get any pointers or advice.

Thanks,

Paul Meems
The Netherlands
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/grass-user/attachments/20160624/3ffe15b0/attachment.html>