[mapguide-users] Generating tiles for google maps

George McLean gmclean at gorge.net
Thu Dec 20 11:00:45 EST 2007

Thanks for the suggestions. I tried removing quotes and using CDATA but 
have not had any success yet. I think the quotes are not problem. I 
tried another projection from another map and it worked fine. The XML of 
the working file is below.

<Metadata />

I think there must be something in the coordinate definition that does 
not work.

+a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 
+units=m +nadgrids=@null +wktext  +no_defs"]]

I need to educate myself on the parameters in these WKT coordinate 

Thanks again for the help,


Jason Birch wrote:
> I think that you may either need to change your " to &quot; ... or maybe
> use something like
> <![CDATA[
> PROJCS["unnamed",GEOGCS["unnamed
> ellipse",DATUM["unknown",SPHEROID["unnamed",6378137,0]],PRIMEM["Greenwic
> h",0],UNIT["degree",0.0174532925199433]],PROJECTION["Mercator_2SP"],PARA
> METER["standard_parallel_1",0],PARAMETER["central_meridian",0],PARAMETER
> ["false_easting",0],PARAMETER["false_northing",0],UNIT["Meter",1],EXTENS
> ION["PROJ4","+proj=merc 
> +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 
> +units=m +nadgrids=@null +wktext  +no_defs"]]
> ]]> 
> I have no idea whether either will work though... haven't tried this
> with MapGuide.
> Jason
> -----Original Message-----
> From: George McLean
> Subject: Re: [mapguide-users] Generating tiles for google maps
> I have have been trying to modify my map using mapagent. I have exported
> the resource content and then edited the coordinate system to use the
> WKT representation of the projection. I can not seem to get past an
> error in the Metadata tag:
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