Symbulos Partners wrote:
Lester Caine wrote:
Expensive. There are a few postcode management sites that provide
positional data against the post code, but they all cost quite a bit of
money. We are working on a cut down version for key areas, with a rough
entry for the first part for all post codes,
Lester Caine wrote:
> Expensive. There are a few postcode management sites that provide
> positional data against the post code, but they all cost quite a bit of
> money. We are working on a cut down version for key areas, with a rough
> entry for the first part for all post codes, with a few that
Richard Lynch wrote:
But we DON'T CARE!
The Borg are everywhere!!! ;)
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Brian Dunning wrote:
>>> I realized one day that at a distance of a hundred miles or less, I
>>> just
>>> didn't *CARE* about curvature of the earth, and replaced that trig
>>> with
>>> your basic Cartesian distance.
>
> True, but be aware that this is only true when all of your coordinates
> are i
symbulos partners wrote:
>> So often php-general is graced with the presence of people with
>> multiple personalities.. or are you really the borg? :)
>
> What??
You used "we" a lot in your post.
>>> Any body has any experience with anything similar?
>>
>> I coded a zip code to distance calculat
I realized one day that at a distance of a hundred miles or less, I
just
didn't *CARE* about curvature of the earth, and replaced that trig
with
your basic Cartesian distance.
True, but be aware that this is only true when all of your coordinates
are in the same general latitude. For example, li
What about UK postcodes?
I don't have a source for that - looked into it once and it was too
expensive. And I thought the USPS charged obscene prices...
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> So often php-general is graced with the presence of people with
> multiple personalities.. or are you really the borg? :)
What??
>
>> Any body has any experience with anything similar?
>
> I coded a zip code to distance calculater last week.
>
> x = 69.1 * ( zip2.lat - zip1.lat )
> y = 69.1
Brian Dunning wrote:
>http://www.zipwise.com/
What about UK postcodes?
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Brian Dunning wrote:
> On Jan 11, 2005, at 12:39 PM, Greg Donald wrote:
>
>> This does not take into account the curve of the earth. In addition
>> you'll need a db with the latitude and longitude for each zip code.
If you only want "close" things to a given location, the curvature of the
earth i
Richard: I found this post incredibly useful. Thank you!
Richard Lynch wrote:
If you only want "close" things to a given location, the curvature of the
earth is pretty insignificant.
...
I realized one day that at a distance of a hundred miles or less, I just
didn't *CARE* about curvature of the e
Symbulos Partners wrote:
Brian Dunning wrote:
http://www.zipwise.com/
What about UK postcodes?
Expensive. There are a few postcode management sites that provide
positional data against the post code, but they all cost quite a bit of
money. We are working on a cut down version for key areas, wit
On Jan 11, 2005, at 12:39 PM, Greg Donald wrote:
This does not take into account the curve of the earth. In addition
you'll need a db with the latitude and longitude for each zip code.
If I might be so bold as to suggest one without getting flamed:
http://www.zipwise.com/
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On Tue, 11 Jan 2005 19:57:15 +, symbulos partners
<[EMAIL PROTECTED]> wrote:
> We would like to implement a geographic search engine.
>
> We have a list of places, the user enters a postcode + a radius in kms and
> the search engine returns a list of places within a certain radius.
So often p
We would like to implement a geographic search engine.
We have a list of places, the user enters a postcode + a radius in kms and
the search engine returns a list of places within a certain radius.
Any body has any experience with anything similar?
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