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Posted by Brian Wakem on 11/27/06 13:26
Geoff Berrow wrote:
> Message-ID: <4t06mvF114h3fU1@mid.individual.net> from Dylan Parry
> contained the following:
>
>>
>>> You can buy a set of postcode *sectors* for a much-reduced amount
>>
>>Also worth bearing in mind is that sector data is much less accurate
>>than the full PAF data. PAF is geocoded to the nearest 100 metres,
>>whereas sector data could be out by several hundred metres. Of course,
>>depending on the intended use, this could be more than adequate.
>
> So, as a matter of interest, what would you need to do the Auto Trader
> type thing that tells you how far apart two postcodes are. Obviously it
> doesn't need 100 metre precision, accuracy to within a few miles would
> be sufficient.
>
Eastings, Northings + a bit of Math.
--
Brian Wakem
Email: http://homepage.ntlworld.com/b.wakem/myemail.png
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