Re: phl.pm map (fwd)

[Adam Turoff <ziggy@panix.com>]

----- Forwarded message -----
Date: Wed, 26 Sep 2001 11:10:15 -0700
From: "Kurt D. Starsinic" <kstar@wolfetech.com>
To: phl@lists.pm.org
Cc: Joe Smith <jes@martnet.com>, list@la.pm.org
Subject: Re: phl.pm map

On Sep 25, Robert Spier wrote:
> Joe Smith writes:
> >Hi Rob, this is cool.  I've been looking for a way to generate this kind of 
> >map to do some simple demographics.  It might involve 150-200 locations and 
> >circles from a fixed location (e.g. within 3 miles).  Can Tiger do this?  
> >Could you post a note to the list that outlines how you create the map?  As 
> >far as I can tell, the Tiger map generator only does one point (or one at a 
> >time at least).
> 
> Joe asked how I generate the map, so here's brief answer:
> 
> 1. Drop data into a file that looks something like this:
> 
> # Robert
> home: 34.186238  118.300898
> work: 34.171746  118.323148 
> # etc...
> 
> 2. Run simple perl script to convert it into tiger format, which looks
>    like this.
> 
> #tms-data
> -118.300898,34.186238:bludot10:
> -118.323148,34.171746:reddot10:
> 
>    This is what lets me put multiple points on the map.  It's
>    documented in the instructions document, which is a little hard to
>    find.
> 
>     http://tiger.census.gov/instruct.html#MURL
> 
> 3. Go to tiger web page, tell it the URL of the file generated in step
>    2.  Tweak settings of position, scale, size, etc.
> 
> 4. Save generated .gif file and put on web somewhere.
> 
> It's really that simple.  
> 
> Joe- as for your specific question about circles, I don't think it's
> possible - but, you could probably make circles with a little bit of
> math and some small dots, or just draw them on afterwards :)
> 
> One thing to remember about Tiger, is a) it's free, and b) it's mostly
> unsupported.  It was an experiment, that thankfully (Thanks Lisa's
> coworkers!) they've kept running.

    I think that you could do everything you want (including circles
instead of dots, and lots of other cool stuff) with xearth.  It even
looks like it might be the same input data format.

    - Kurt

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