[ale] Generating Mapping Charts

[John Wells]

On Mon, 2 Feb 2004 12:10:57 -0500
"Matthew Brown" <matthew.brown at cordata.com> wrote:

> Anyone know of a good tool to generate a map based upon ZIP Code-level data?
> For example, given the data below, Kennesaw might be Hot (red) where as
> Dunwoody would be Cold (blue).  My goal is to do this on a ntinal map scale.
>  
> ZIP                    Participants
> ==========    ============= 
> 30144                5000                    (Kennesaw)
> 30392                1                        (Dunwoody)
> 30152                2500                    (Kennesaw)
> 30328                2                    (Dunwoody)
>  

You could do something like this with jpgraph, but you'd have to know specific image coordinates that represented the cities....