how was this 3d map made?

[Helen Triolo]

Hi all.  I got a very cool-looking (except for all the ugly ads) map in

the mail the other day and wondered if anyone can clue me on how it

might have been made. I scanned in a piece and stuck it up at

http://i-technica.com/streetmap.html . Aerial photos plus 3d software,

I'd guess, but what 3d software?  It looks like a lifetime of work to me

(!) but it would be so great to do something like this for a map project

I'm currently working on...  

 

Thanks,

Helen 

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