Re: [OpenMap Users] How do 'they' do it?

Hi Frank,

I would guess they are using shape files created from TIGER census
data. You can download that data freely, and you can find it with a
Google search. It's broken up into many files, and the entire data
set is pretty large. I would also guess they have loaded all of the
data into a database and are working with a spatial database engine
to retrieve and render the features according to location and
attributes.

Hope this helps,

Don

On May 22, 2007, at 7:37 AM, F.Bayliss wrote:

> Hello,
>
> As the subject line implies I'm wondering how other web sites, like
> google or yahoo, generate the type of image they do. Are they using
> shape data and coloring the specific area's or do they use a
> different type of source?
> I'm currently generating imagery in my application using openmap
> and several shape files but have not been able to provide a look
> with such detail or color. I'm sure if I played with the options I
> can improve my look but before I did that I wanted to know if this
> is the right direction, or that maybe I should be using a different
> data format.
>
> Thanks
> Frank
>
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Don Dietrick, dietrick@bbn.com
BBN Technologies, Cambridge, MA
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