Matthew Somerville wrote:
Sure, it's almost certainly good enough (it's how WriteToThem works,
after all), but it just wasn't what was asked for, is all :-)
Sorry, I should clarify that. Postcode areas and admin boundaries aren't
really linked at all, so if you take a particular lat/lon, it's quite
possible the closest postal centroid could be in a different
ward/council, and so for an accurate point lookup you need to do
point-in-polygon test. That's how FixMyStreet functions. It's possible a
postcode area straddles a ward boundary, but in the main, for addresses,
a postcode lookup will be enough. So it really depends what you're
doing, as with anything.
ATB,
Matthew
Mark Goodge wrote:
On 08/04/2010 16:43, Matthew Somerville wrote:
Harrison, Stuart wrote:
http://www.uk-postcodes.com/latlng/{lat},{lng}
Should do what you want it to do :)
Isn't that actually the council for the closest postcode to that lat/lon
though, which isn't precisely what's asked for.
It might be good enough, though, if postcode areas never (or very
rarely) cross ward boundaries. And, given that full postcode areas are
fairly small, that shouldn't be very common if it happens at all. Or
is it too common for that to be reliable?
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