[GRASSLIST:365] Re: v.extract, n-flag

Radim Blazek blazek at itc.it
Thu Jun 12 04:56:14 EDT 2003


On Thursday 12 June 2003 10:42, Thomas Hoffmann wrote:
> Hey to all,
>
> I would like to extract some features of vector map based on the
> attribute label. The online manual says that I should use the n flag.
> But when I use the following command:
>
> v.extract -n mapname tape=area out=new_mapname new=0 list=´search text´
>
> I get the error message: n is not a valid flag. But why and what can I
> do else?
> (I am using Grass Version 5.0.1 on Suse-Linux)
>
> Is there a way of reclassify a vector map based on the attribute label.
> If yes, I would reclassify the attributes by the attribute label and do
> a v.extract based on the attributes.

-n is disabled because of bug in v.extract.

Radim




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