[mapguide-users] WMS EPSG

[Paul Spencer]

Scott,

web studio doesn't use the built in coordinate system because, until  
recently, it wasn't exposed in the mapagent.  Instead, I chose to  
implement a simple XML file that would provide access to frequently  
used coordinate systems.  There are actually two files:

all-projections.xml
projections.xml

Due to the size of all-projections.xml (which is actually just all  
epsg projections, not every projection for mapguide), it took a  
substantial amount of time to process in a web browser.  So I decided  
to have a much smaller projections.xml file that would just contain  
whatever you use most frequently.

To get access to projections in web studio, you need to find and copy  
the appropriate block from all-projections.xml into projections.xml.   
Note that web studio actually uses the WKT string so it is not  
necessarily limited to EPSG codes - that was all I had convenient  
access to.

At some point in the future, I would like to transition this to use  
the new coordinate system calls recently added to the mapagent.

Cheers

Paul

On 20-Nov-06, at 4:11 PM, Scott Hameister wrote:

> Is this why I only see a couple CoordSys's in WebStudio?
> Is there a Library with all the Major Coordinate systems in it,  
> like all the
> State and UTMs that I could download and fix this?
>
> -----Original Message-----
> From: Bruce Dechant [mailto:bruce.dechant at autodesk.com]
> Sent: Monday, November 20, 2006 2:58 PM
> To: users at mapguide.osgeo.org
> Subject: RE: [mapguide-users] WMS EPSG
>
> Brad,
>
> You will need to update the Proj.4 "epsg" file with the definition of
> EPSG:102190 and it should work. I tried to google this and couldn't  
> find
> it so I'm not sure what it looks like in order to test it.
>
> The Proj.4 file "epsg" is located by the path specified in the
> environment variable "PROJ_LIB" and you would want to add the 102190
> entry to the end of the file, ie: ..\nad\epsg
>
> Thanks,
> Bruce
>
> -----Original Message-----
> From: BradM [mailto:masonb at dfo-mpo.gc.ca]
> Sent: November 17, 2006 5:03 PM
> To: users at mapguide.osgeo.org
> Subject: [mapguide-users] WMS EPSG
>
>
> Hi folks: simple question:  we are using BC Albers EPSG 3005 for our
> initial
> map projection.  Will  we be able to view  a WMS BC Albers map layer
> that
> uses  EPSG 102190?
> thanks
> -- 
> View this message in context:
> http://www.nabble.com/WMS-EPSG-tf2657673.html#a7413308
> Sent from the MapGuide Users mailing list archive at Nabble.com.
>
>
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+-----------------------------------------------------------------+
|Paul Spencer                          pspencer at dmsolutions.ca    |
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|Chief Technology Officer                                         |
|DM Solutions Group Inc                http://www.dmsolutions.ca/ |
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