[OSM-talk] Projections

[SteveC]

* @ 19/01/07 03:30:15 PM andrew.rowbottom at gmail.com wrote:
> >Are you trying to say that there is a standard for tiling in Mercator
> >projection written down somewhere, and we are breaking it?
> 
> The big issue here is that the program used to display the tiles must
> know the projection used if it wants to convert pixel coordinates (or
> tile names) to lat/long. The current implementation assumes a
> particular conversion that is not the same for all the different sets
> of tiles.

The current (top two layers) tiles can be dropped in to google maps -
it's a pretty compelling reason to stick with it.

have fun,

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