On Thu, Oct 11, 2007 at 08:07:26AM +0100, Shaw, Richard A wrote: > > > How do I get my vector layer which is in WGS84 to overlay properly on > > google maps ? > > > > I've downloaded and integrated GoogleMercator layer and can see that the > > world tiles overlay correctly as per the example but the following don't > > work - > > > > Set the extents in WGS84 > > Getting a co-ordinate of the click point in WGS84 > > Overlaying my information as a vector defined in WGS84 > > > > What am I missing ?
All your overlay layers must be the same projection as your base layer -- Google, Yahoo, etc. use the projection that has been referred to as EPSG:900913. When using SphericalMercator option on the layers, they have two additional functions: forwardMercator(lon,lat), which returns an x, y and inverseMercator(x,y) which returns a lon,lat. Using these, it is possible to forward or reverse the projection to get the coordinates you are interested in. Regards, -- Christopher Schmidt MetaCarta _______________________________________________ Users mailing list [email protected] http://openlayers.org/mailman/listinfo/users
