[mapguide-users] Adding a Coordinate System to MGE/MGOS

Maksim Sestic max at geoinova.com
Fri Dec 14 04:24:24 EST 2007

Hi Bruce,

I was hoping that MG had some mistery :-) mechanism of adding new CRSs to
it's common definitions. So, I guess the only procedure to add new CRS to MG
goes like:

1) On a client machine, run Map 3D and add new CRS (Map -> Tools -> Define
Global Coordinate System...)
2) Open folder ...\Program Files\Common Files\Autodesk Shared\GIS\CoordSys
to see definition files
3) On MG server machine, open folder ...\Program
4) Run csupdate.exe
5) Source folder = the one described in step 2)
6) Destination folder = ...\Program Files\Common Files\Autodesk
Shared\GIS\CoordSys on MG server

I just need to check out if MG Studio shares common CRS definitions with Map
(I guess it does), and if it sees a newly added one when creating a new
MapDefinition. That's how it should work for the MGE. I don't know if Mentor
and Proj4 share common CRS/Datum/etc. definition files (for this to work on

BTW, I have no idea why Map and some other GIS applications use obscure
formats for persisting coordinate system related data. Isn't XML on OGC
standards enough? Is there something to hide? :-) I guess not (
http://www.epsg.org/CurrentDB.html EPSG Geodetic Parameter Dataset ).

Maksim Sestic

Bruce Dechant wrote:
> MGE keeps the coordinate system definitions inside the installed Mentor
> dictionary files which is not stored as OGC WKT.
> Map is typically the tool used to add new coordinate systems to Mentor
> dictionary files.
> MGOS uses PROJ4 and I'm not familiar with adding new coordinate systems to
> it. However, it is open source so you have full access to it for
> modifying.
> MapGuide Studio cannot add new coordinate systems to either MGOS or MGE.
> Bruce
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