I know this is neither here nor there, but I believe there are many valid projections that do not have EPSG codes. Defaulting to LL when many "non-standard" CS are liner-units-based may not be the best approach. Would it not be possible to disable coordinate transforms if there is no code available?
Jason On 2009-10-07, Mike Adair <[email protected]> wrote: > I'm currently working on a patch to retrieve the projection info from > the map definition for MapGuide. The problem is that MG uses WKT and > OpenLayers/Fusion uses EPSG codes and MG doesn't always have an EPSG/WKT > mapping available. So I will be implementing this so that if MG returns > a valid EPSG code it will use that, otherwise it will take a value from > the ApplicationDefinition file, and if there still isn't an EPSG code > available then the projection will be set to the OpenLayers default of > EPSG:4326. > > Mike > > > > Flipper wrote: >> Im trying my hand at some Open Layers programming. I'm trying to set the >> maps >> Coordinate system to match Mapguides, So I decided to peek into Fusion.... >> One thing for the life of me I can't find is where fusion sets the >> OpenLayer >> Maps Coordinate system. I know Open layers uses Proj 4, and Mapguide Can >> use >> both cs-map and Proj4...I know how to get the coordinate system >> Description >> out of Mapguide...But how do I push it back into OpenLayers Using my >> PROJCS >> system... >> Or worded Much simpler...How/Where does Fusion do this to openLayers...I >> want this to work on anymap...so I don't want to hard code a EPSG code >> into >> it, and several users will have Non PROJ4 coordinate systems, like Local >> County Coordinate systems that CS-MAP allows them to use... >> ANYONE? >> > > -- > Michael Adair > Senior Software Architect > DM Solutions Group Inc. > > Office: (613) 565-5056 x26 > [email protected] > http://www.dmsolutions.ca > http://research.dmsolutions.ca > > > _______________________________________________ > mapguide-users mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/mapguide-users > _______________________________________________ mapguide-users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/mapguide-users
