[OSM-talk] Increase download limit near the poles?

Dirk-Lüder Kreie osm-list at deelkar.net
Thu Sep 6 11:06:38 BST 2007


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Petter Reinholdtsen schrieb:
> [Tom Hughes]
>> Well if you can come up with a good algorithm then maybe we can
>> consider it ;-) For what it's worth the current test is:
>>
>>   (max_lat - min_lat) * (max_lon - min_lon) < 0.25
> 
> What about something like this:
> 
>     (max_lat - min_lat) * (max_lon - min_lon) < 
>         0.1 + 0.2*sin( | max_lat - min_lat | )

shouldn't that be 0.2*(1-cos( | (max_lat + min_lat)/2 | )) or similar?

- --

Dirk-Lüder "Deelkar" Kreie
Bremen - 53.0952°N 8.8652°E

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