On Feb 4, 2008, at 10:01 AM, [EMAIL PROTECTED] wrote:
Date: Mon, 4 Feb 2008 09:28:39 -0500
From: "Sampson, David" <[EMAIL PROTECTED]>
Subject: [GRASS-user] GRASS and linking postgres tables to spatial
layers
To: <[email protected]>
Message-ID:
<[EMAIL PROTECTED]>
Content-Type: text/plain; charset="us-ascii"
Hey Folks,
I have imported a shape file of polygons representing canadian
provinces. I also have a list of projects that have a particular
dollar
value attributed to them.
I would like to create a map that can classify each province by totla
dolar value of all projects. Each classification would have a dollar
range associated with a color.
Alternative would be to do pie charts or other graphics to easily
examplify the distribution of money amongst provinces.
I am thinking that I have to link the GRASS data with a postgres
table.
I looked in the GRASS book (2nd ed) and thorugh the wiki and man
pages.
No hints.
Look at the 3rd edition book.
Any ideas?
d.vect.thematic makes thematic maps
d.vect.chart makes thematic charts (including pie and bar) centered on
points or area centrioids.
Michael
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