[GRASS-user] Problems with v.to.db and v.db.addcol

[Niels Thevs]

I tried the v.to.db (Windows-Grass) again. Today no error message came 
out. But, with the default settings these messages came out:

v.to.db map=training_area_2_x_unsupervised_class_50 at PERMANENT 
type=point,line,boundary,centroid layer=1 qlayer=1 option=area 
units=hectares column=b_label

Updating database...



5104 categories read from map

5104 records selected from table

5104 categories read from map exist in selection from table

0 categories read from map don't exist in selection from table

5104 records updated/inserted

0 update/insert errors

Then, I changed type to area:

v.to.db map=training_area_2_x_unsupervised_class_50 at PERMANENT type=area 
layer=1 qlayer=1 option=area units=hectares column=b_label

ERROR: value <area> out of range for parameter <type>
        Legal range: point,line,boundary,centroid

Best regards

Niels


Markus Neteler schrieb:

> Could you please post the precise error message?
> 
> Thanks
> Markus
> 
> On Jan 29, 2008 8:54 PM, Niels Thevs <nt001582 at uni-greifswald.de> wrote:
> 
>>Under my Windows GRASS GIS the commands  v.to.db and v.db.addcol did not
>>work properly, when I wanted to calculate the areas of polygons. There
>>were error meaaages that it could not poen or execute the dbase files.
>>Does anybody how to overcome this problem ?
>>
>>Best regards
>>
>>Niels
>>
>>--
>>
>>
>>
>>-----------------------------------------------------
>>Dr. Niels Thevs
>>Chair of Geobotany and Landscape Ecology
>>Institute of Botany and Landscape Ecology
>>Greifswald University
>>Grimmer Strasse 88
>>17487 Greifswald
>>Germany
>>
>>Tel.: +49-3834-86-4137
>>Fax:  +49-3834-86-4114
>>
>>-----------------------------------------------------
> 
> 

-- 



-----------------------------------------------------
Dr. Niels Thevs
Chair of Geobotany and Landscape Ecology
Institute of Botany and Landscape Ecology
Greifswald University
Grimmer Strasse 88
17487 Greifswald
Germany

Tel.: +49-3834-86-4137
Fax:  +49-3834-86-4114

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