[GRASS-user] displaying points based on attributes

Hamish hamish_nospam at yahoo.com
Tue Oct 10 21:42:49 EDT 2006

Seb wrote:
> I have imported a shape file containing simple points, with an
> associated attribute table.  I can see the attribute table in the
> 'dbf' directory of the mapset.  When working from the display manager,
> however, I cannot find how to vary symbols/colors for the points,
> based on an attribute of choice.  Can somebody please point out how
> this is done?  Thanks in advance.

by category:

add the vector map multiple times, one for each symbol/color
combination, and then restrict with "use SQL query" box.
e.g. "ATTRIBUTE > 6" or "ATTRIBUTE = 'large'"  See the SQL help
pages for syntax.

graduated by value:

d.vect.thematic  (Add thematic map layer button next to add vector


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