[GRASS-user] Color Vector by text attribute

[Richard Nairn]

If that is the case it is really kind of clunky as it breaks the 
relationship between the original value and the colour. I will have to 
look into this further.

I went the route of doing a select distinct on the text attribute and 
doing a v.db.update on RGBDATA for each distinct attribute with a 
colour. The biggest issue of course is if you edit the attribute then 
the colour is immediately wrong.

On 2015-01-28 03:04 PM, Markus Neteler wrote:
> (cc list)
>
> On Wed, Jan 28, 2015 at 10:50 PM, Richard Nairn
> <richard at nairnconsulting.ca> wrote:
>> If I look at v.colors the column specification says it needs a numeric
>> column, not a text column - thus precluding a rules file for a text column?
> Mhh, maybe you are right (I didn't use it too much yet, perhaps others
> in the list have suggestions).
>
> If yes, you could generate a numeric column and populate it for
> example with v.db.update.
>
> Markus