[GRASS-user] Re: Update - Check points in polygons

[John C. Tull]

I have not found a way to work directly with postgis tables. You can  
use v.in.ogr like this:
v.in.ogr dsn="PG:dbname=your_postgis_db host=yourhost"  
layer=table_from_postgis out=new_layer

You then have the postgis table available as a layer in grass, but you  
will not be able to edit it directly from grass to my knowledge.  
Someone else might be able to supply the v.out.ogr statement that  
would update the table in postgis.

Cheers,
John

On Mar 6, 2008, at 8:57 AM, Corrado wrote:
> Dear John,
>
> I have used postgis to load a shapefile into the postgres database,  
> by means
> of shp2pgsql.
>
> When I then start grass, how could I can connect to the databse, but  
> I do not
> understand how to generate a vector map from the postgis table.
>
> Any help?
>
> Best Regards
> -- 
> Corrado Topi
>
> Global Climate Change and Biodiversity
> Area 18,Department of Biology
> University of York, York, YO10 5YW, UK
> Phone: + 44 (0) 1904 328645, E-mail: ct529 at york.ac.uk