[mapguide-users] Generating tiles for google maps

Jason Birch Jason.Birch at nanaimo.ca
Wed Dec 19 13:31:43 EST 2007

Specifics of this projection are documented at SpatialReference.org:


And Charlie Savage has a good write-up of why it's not just Mercator:


Note, I have no idea how to add custom projections like this to Proj.4.
I wonder if you would be able to add the WKT representation directly to
your map?



-----Original Message-----
From: Traian Stanev
Subject: RE: [mapguide-users] Generating tiles for google maps

Yes, you have to use Mercator. To make the tiles match perfectly across
the whole world, you will need to use a custom Mercator rather than the
default one in MapGuide (last time I did it, I had to hardcode the
projection into MapGuide). I think that if you restrict yourself to a
small region, you can get away with the Mercator that already exists in
MapGuide and some tiny translation tweaks to make it all align

More information about the mapguide-users mailing list