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I want to do some geographical visualisations as part of a .net web app. I am quite open to non Google solutions. I'd like to show concentrations of customers. There are lots of customers so I don't want to use pins. I was thinking of colorcoded postcode areas. Can anyone suggest any legal and preferably free way of doing this. The boundaries don't need to be postcode but I think that would be the best fit.

Cheers, Chris.

user1102550
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2 Answers2

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If volume of pins is the problem then you could group the customer data before passing it to google maps. You can get lat/long centroids for each postcode area/sector/district from a number of sources, but here's one example:

http://postcodepal.com/?page=database-generator

rob
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www.boundaries-io.com

very simple REST API for this..includes postal sector,district and wards as well..all results are In GeoJson!

Jeryl Cook
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