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 [EMAIL PROTECTED]
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 [EMAIL PROTECTED] 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 <[EMAIL PROTECTED]> 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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