[GRASS-user] Re: grass-user Digest, Vol 24, Issue 50

[Richard Chirgwin]

Chris,
> Dear Markus,
>
> the following error message occurs:
> DBMI-DBF driver error:
> Table 'messstationen' doesn't exist
>
> ERROR: Cannot open table 
>   
Since v.db.connect says there's no table, try creating a table, then 
upload values into the table using v.to.db. After you've uploaded the 
values, you might need to use v.db.connect to set the connection to the 
table.

Or it may be that you have a table (if you're using the dbf driver, the 
table will be in the dbf directory in the mapset folder), but the 
connection is lost. In that case, you can just use v.db.connect to 
reconnect the map to the table.

If the table exists, it will be in <grass data 
directory>/<location>/<mapset>/dbf/

Richard Chirgwin
> And that's the statement I used:
> v.in.ascii -n 'input=/ output= format=point fs=| skip=0 'columns=x double precision, y double precision' x=1 y=2 z=0 cat=1
>
> Did I set the right numbers for the columns?
>
> Regards
>
> Chris
>
> ----------------------------------------
>   
>> Date: Thu, 24 Apr 2008 17:14:24 +0200
>> From: neteler at osgeo.org
>> To: grass-user at lists.osgeo.org
>> Subject: Re: [GRASS-user] missing dbf table for point theme
>>
>> On Thu, Apr 24, 2008 at 5:03 PM, christian Brandt
>>  wrote:
>>     
>>>  Dear list,
>>>
>>>  I imported points from ascii table into GRASS 6.3 ORC5. Now I would like to assign values to these points. So doing the v.db.connect command GRASS tells me that there is no table for this layer.
>>>       
>> Did you use the "column" parameter?
>> What does
>>
>> v.info -c yourmap
>>
>> say?
>>
>> Markus
>>
>>     
>>>  Besides, using the v.db.addtable command to add an attribute table to the layer the message appears that there is already a table linked to the layer.
>>>
>>>  What to do now?
>>>
>>>  Regards
>>>
>>>       
>> _______________________________________________
>> grass-user mailing list
>> grass-user at lists.osgeo.org
>> http://lists.osgeo.org/mailman/listinfo/grass-user
>>     
>
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> ------------------------------
>
> Message: 3
> Date: Thu, 24 Apr 2008 13:30:22 -0300
> From: "Daniel Victoria" <daniel.victoria at gmail.com>
> Subject: Re: [GRASS-user] Vectors in WMS
> To: "Maris Nartiss" <maris.gis at gmail.com>
> Cc: grass <grass-user at lists.osgeo.org>
> Message-ID:
> 	<e7d9427f0804240930g56e5ed52l8caa848246c86793 at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> I don't understand about WMS and WFS a lot. All I know is that there
> is a server at the environmental ministry where I can see the
> hydrography layers. The only thing is that the maps address changes
> every day (it's a per request service I guess) I'll give r.in.wms a
> try
>
> If, by any chance, it's a WFS server, is there a download tool for it?
>
> Cheers
> Daniel
>
> On Thu, Apr 24, 2008 at 12:08 PM, Maris Nartiss <maris.gis at gmail.com> wrote:
>   
>> I'm sorry to disappoint You, but WMS deals with raster and not with
>>  vectors. Vectors You can get with WFS or similar service. If You by
>>  word "vectors" mean roads, rivers etc. displayed as raster in WMS
>>  service, then You should:
>>  1) Download data as rasters (r.in.wms);
>>  2) Extract objects of interest (r.mapcalc);
>>  3) Run r.thin to get thin lines;
>>  4) Convert result to vectors with r.to.vect.
>>
>>  Still You can create buffers and other analysis on raster data.
>>
>>  Maris.
>>
>>  2008/4/24, Daniel Victoria <daniel.victoria at gmail.com>:
>>
>>
>>     
>>> Hi all,
>>>       
>>  >
>>  > I've found some vectors of interest on a WMS server (Brazilian
>>  > Environmental Ministry) and I'd like to save those vectors locally so
>>  > I can do operations like buffers, distances, etc etc, I've seen the
>>  > r.in.wms. Is there such a functionality for vectors?
>>  >
>>  > Thanks
>>  > Daniel
>>  > _______________________________________________
>>  > grass-user mailing list
>>  > grass-user at lists.osgeo.org
>>  > http://lists.osgeo.org/mailman/listinfo/grass-user
>>  >
>>
>>     
>
>
> ------------------------------
>
> Message: 4
> Date: Thu, 24 Apr 2008 18:34:05 +0200
> From: "Martin Landa" <landa.martin at gmail.com>
> Subject: Re: [GRASS-user] Vectors in WMS
> To: "Daniel Victoria" <daniel.victoria at gmail.com>
> Cc: grass <grass-user at lists.osgeo.org>
> Message-ID:
> 	<f8fe65c40804240934g54b7cc64q8ad940de4234b439 at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> Hi,
>
> 2008/4/24, Daniel Victoria <daniel.victoria at gmail.com>:
> [...]
>
>   
>>  If, by any chance, it's a WFS server, is there a download tool for it?
>>     
>
> sure, v.in.wfs
>
> Martin
>
>   
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