[OSM-dev] slippymap doesnt wrap around +-180deg

John McKerrell john at mckerrell.net
Wed Apr 2 17:45:19 BST 2008


Um... good point :-)

On 2 Apr 2008, at 16:13, Stefan Baebler wrote:

> John, when going West on this map on the given URL the longitude  
> -179 (179W) should become +179 (179E), but it rolls over to +91979,  
> giving the url:
> http://johnmckerrell.com/map/ 
> #t=mapnik&lat=-41.86956&lon=91979.537&zf=7
> Better, but not exactly perfect either :)
>
> Stefan
>
> John McKerrell wrote:
>> Try this instead:
>>
>> http://johnmckerrell.com/map/ 
>> #t=mapnik&lat=-41.96766&lon=-179.73632&zf=7 <http:// 
>> johnmckerrell.com/map/#t=mapnik&lat=-41.96766&lon=-179.73632&zf=7>
>>
>>
>> On 2 Apr 2008, at 14:49, Luka Frelih wrote:
>>> hello!
>>>
>>> i just noticed that our slippymap resists crossing the 180 degree  
>>> meridian (intl date line).
>>> try zooming in on new zealand at this link: http:// 
>>> www.openstreetmap.org/?lat=-41.47&lon=-179.23&zoom=6 <http:// 
>>> www.openstreetmap.org/?lat=-41.47&lon=-179.23&zoom=6>
>>>
>>> i guess this is unintended. not sure whether we inherited this  
>>> bug from openlayers or introduced it ourselves. either way i  
>>> guess someone here will know what's going on.
>>>
>>> best,
>>> LF
>>>
>>> _______________________________________________
>>> dev mailing list
>>> dev at openstreetmap.org <mailto:dev at openstreetmap.org>
>>> http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/dev
>>
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>





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