I´d like the OSM equivalent the "watchlist" function in MediaWiki. Ideally I would be able to get an email alerting me when changes are made to areas I am interested in.
On Tue, Oct 28, 2008 at 11:35 PM, Matt Amos <[EMAIL PROTECTED]> wrote: > On Tue, Oct 28, 2008 at 8:24 PM, Freek <[EMAIL PROTECTED]> wrote: >> I have not seen those (would be interested), but I would guess rectangular >> queries make an equilateral-triangle subdivision inherently less favourable, >> even though the geometry is distorted by the projection > > i think it might have been this one... or maybe not... it was a long > time ago :-) > > http://research.microsoft.com/research/pubs/view.aspx?tr_id=736 > >> (we don't have much >> data near the poles anyway ;-) > > this is exactly why an icosahedral decomposition is so good - each > tile in the same level of the tree is very nearly the same projected > area. the quadtile approach (whether using 3395 or 4326) projects to > much smaller areas near the poles than the equator, so wastes valuable > coordinate space and unbalances the tree. if the icosahedron is > oriented correctly (fuller's dymaxion orientation) then several of the > triangular faces are completely filled with ocean and can be omitted. > > cheers, > > matt > > _______________________________________________ > talk mailing list > talk@openstreetmap.org > http://lists.openstreetmap.org/listinfo/talk > -- Tel: +44(0) 7814 517 807 _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
