Dot density maps

[Steve Hall]

Hi all,

Sorry about the delay in getting this out - I don't have access to MapInfo
all the time....

Attached is a sample image of the kind of thing I mean.  This is a map of
Total Population by Postcode for Melbourne, Aus.  Each dot represents 25
people.  The dot placement within postcode boundary (the red line) is random
(i.e the dots location within the polygon is meaningless) but number of dots
is highly relevant.

The maps can be useful in this kind of context to give an impression of
"density".

Thanks

Steve


----- Original Message -----
From: "Steve Lime" <steve.lime at dnr.state.mn.us>
To: <MAPSERVER-USERS at lists.umn.edu>; <steve.hall at MERCATORGEOSYSTEMS.CO.UK>
Sent: Thursday, February 10, 2005 2:51 AM
Subject: Re: [UMN_MAPSERVER-USERS] Dot density maps


> I'm not familiar with the term, however if you post a sample map there
> may well be a way...
>
> Steve
>
>>>> Steve Hall <steve.hall at MERCATORGEOSYSTEMS.CO.UK> 02/09/05 2:11 PM
>>>>
> Hi all,
>
> Has anyone ever done any dot-density mapping using MapServer?  For those
> familiar with MapInfo i'm looking to replicate something like the
> dot-density maps found in that product.  I can't seem to find any
> reference to it in the docs....
>
> Many thanks,
>
> Steve Hall
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