[GRASS-user] GRASS and linking postgres tables to spatial layers

[Hamish]

David Sampson wrote:
> 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.
> 
> Any ideas?


maybe something like the "Income and Employment USA 2002" map using
v.extrude + NVIZ?
  http://grass.osgeo.org/grass60/screenshots/viz.php

or d.vect.chart:
  http://grass.osgeo.org/screenshots/vector.php


see also v.reclass + GRASSRGB column to hold color.


Hamish




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