[OpenLayers-Users] epsg 23700 and google

[Christopher Schmidt]

On Tue, Aug 26, 2008 at 02:34:04PM +0200, Berényi Attila wrote:
> Dear Folks,
> 
> I've my maps in epsg 23700 (HD-72, EOV) and I display them trough wms in 
> openlayers.
> My question: is it somehow possible to underlay the google maps content?

All layers in an OpenLayers Map must have the same projection. 

Google data is in only one projection -- specifically, spherical/web
mercator -- and any data you want to overlay on top of Google must be in
that same projection.

In general, WMS servers have the ability to reproject data, as do tools
like GDAL, so it is typically possible to serve projected data on top of
Google Maps by first reprojecting it.

However, it is not possible to serve the data in EPSG:23700 on top of
Google Maps.

Regards,
-- 
Christopher Schmidt
MetaCarta