[Tilecache] Convert Spherical Mercator coordinates to Lat/Lng?

[Dane Springmeyer]

Its TMS (Tile Map Service), right?

http://wiki.osgeo.org/wiki/Tile_Map_Service_Specification

Does manifold use Proj.4 for projections support?  If it does then  
just adding a record for spherical mercator in the espg file should  
allow the WMS to support spherical mercator. If not, then nevermind. :)

Sounds like the openlayers forward/inverse js code is exactly what you  
need, but....  kinda begs the question again... maybe use OpenLayers?

If your digitizing stuff in gmaps is the only hangup - I'd just note  
that OpenLayers has got an impressive editing framework that you could  
likely contribute to.

Dane



On Nov 16, 2008, at 2:13 PM, chris marx wrote:

> Hi,
>  I've got the TileCache TSM service working (thanks to the list for  
> tips!), but unfortunately, my WMS does not support the "Spherical  
> Mercator" projection. For the moment, i rewrote the wms service to  
> switch up the espg and coordinates from tilecaches's tsm request and  
> converting them to lat/lng, so that at least the WMS request will go  
> through, but I assume a standard mercator projection to do the  
> conversion (which is obviously wrong). Since my GIS/WMS doesn't  
> support this projection, does anyone have the necessary code to  
> convert coordinates from the spherical mercator to lat/lng?
> Thanks!
>
> -- 
>
> Chris Marx
> Programmer/Analyst
> Cornell Lab of Ornithology
> 159 Sapsucker Woods Rd.
> Ithaca, NY 14850
> t. 1.607.254.1142
> http://www.birds.cornell.edu/
> _______________________________________________
> Tilecache mailing list
> Tilecache at openlayers.org
> http://openlayers.org/mailman/listinfo/tilecache

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