[Talk-GB] Post code map updated with a Code-Point Open layer

Colin Smale colin.smale at xs4all.nl
Thu Apr 1 14:37:28 BST 2010

Looks really nice, with the colours as well!

Looking at the Thames east of London, the boundary down the river 
between Kent and Essex looks rather suspicious. There seem to be bits of 
Essex with a Kent postcode and vice versa. Is this a function of 
"clipping to the coastline" that you mention? I hope it's not 
representative for the accuracy of the rest of the data...


On 01/04/2010 15:15, Dave Stubbs wrote:
> Hi,
> The Ordnance Survey OpenData released today contains a dataset called
> Code-Point Open giving the coordinates of about 1.5 million postcodes.
> I've added a layer onto the postcode area map to show this data in the
> same way it's been showing NPE, OSM and FreeThePostcode data for some
> time.
> Go see it here:
> http://random.dev.openstreetmap.org/postcodes/?layers=000F0F0FBT
> There's still a few bugs to be worked out:
>   - only 25% of the original dataset is actually used (generation
> process uses too much RAM on my 32bit machine to do the whole thing)
>   - not yet clipped to coastline
>   - sub-codes ie: "SW18 1" only show where the prefix is 3 chars
> So nothing too serious :-)
> Dave
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