[Talk-GB] Using UK postcode data to generate a heat map

David Earl david at frankieandshadow.com
Wed Jan 30 13:15:26 GMT 2013

Do you know about openheatmap (http://www.openheatmap.com )? Basically 
you can supply spreadsheets of locations vs data and it will do the 
graphics for you. It doesn't know about postcodes, but if you have the 
means to get locations for postcodes you don't have to do any of the rest.


On 30/01/2013 12:44, David Fisher wrote:
> Hi all,
> A friend has come to me with an interesting-sounding request, and I just
> wondered how feasible it might be.
> He has a database of UK postcodes and some measurement or other (not
> sure what yet) and would like to create a heat map.
> Neither of us are techies, but I've been contributing to OSM for a year
> now and am familiar with JOSM and (to a lesser extent) QGIS.
> How difficult a project is likely to be?  (bearing in mind I'd be doing
> it in my spare time as a favour and for my personal interest)
> I assume you'd first have to convert the postcodes to lat/lon?  Then I'd
> need a rendering tool for the "heat" colours, and then a simple base map
> on which to overlay it (just thinking out loud now).
> It sounds like the sort of thing it'd be useful to have a tutorial for.
> If one exists, great!  If not, and if I'm successful, I might have a go
> at writing one.
> Thanks in advance,
> David.  (user Pgd81)
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