[OSM-dev] Slippy map's future

[SteveC]

* @ 30/09/06 02:45:58 PM nick at hogweed.org wrote:
> On Saturday 30 Sep 2006 11:56, Thomas Walraet wrote:
> > Nick Whitelegg a écrit :
> > > Please do speak up if you feel I'm going down the wrong path.
> >
> > Not the wrong path, but you didn't speak about client side for the
> > (non-svg-)slippy map. Tile generation could be improved on the server
> > side, but I think we could also improve the client side.
> >
> > Things like :
> > - Downloading tiles on the middle of the screen first
> > - Reuse tiles from previous zoom level
> > - Prevent unneeded tile download (when the map is moved before all tiles
> > are here)
> > - package and document it for mashups
> 
> Adopting openlayers on the client side would mean using an actively developed 
> and well-used slippy map API. There are issues with Mercator projection, i.e. 
> at the moment, you need, I think, to use metres, not degrees, for the 
> bounding box if you want to use Mercator, but these could be solved by 
> developing an OpenLayers layer which does the reprojection.

This is whats used on the rails branch

> 
> Nick
> 
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have fun,

SteveC steve at asklater.com http://www.asklater.com/steve/