StarSpan Progress, and quick question on OGR data sources
dylan.beaudette at gmail.com
Thu Nov 2 14:43:19 EST 2006
I was recently working on a project involving vector data stored in a PostGIS
table, and raster data stored in GRASS - using starspan to perform the
analysis. I noticed a (bug?) in starspan, where the --vector argument will
only accept a single parameter. This becomes a problem when specifying an OGR
ogrinfo PG:"dbname=pinn host=localhost" table_name
would return all the gory details from the spatial table 'table_name' from
the database 'pinn' .
note that there are two parameters on the command line: a DSN and the table
(or in OGR terms, a layer).
In starspan it is not possible to pass in 2 items to the --vector argument.
I posted this question on the IRC channel yesterday, and was away from the
computer when Frank responded.
It sounds like there is no way to specify a 'table' in the PG datasource
description line. Searching google, it sounds like there is some way to
specify a 'schema' - but it is not clear how or if this would allow one to
specify a specific table in a PostGIS data source.
Therefore, I wonder if there is a simple modification to the starspan code
which would allow for PG data sources to specify a table.
Note that starspan can correctly extract PG vector data, when there is only 1
spatial table in the DB.
PS: I think that the abilities of starspan really shine here: extracting data
from postgis and GRASS, two drastically different data sources -- all though
the magic which is GDAL. Good work everyone!
Soils and Biogeochemistry Graduate Group
University of California at Davis
More information about the Gdal-dev