[mapguide-users] Overlay Vector over Raster, problem with coordinate system

Kenneth Skovhede, GEOGRAF A/S ks at geograf.dk
Wed Oct 29 17:50:53 EDT 2008

The Map and the raster featuresource must have *exactly*
the same coordinate systems.

That means that you must modify your coordinate system override
on the feature source to be *excatly* the same as on the map.

Mvh. Kenneth Skovhede, GEOGRAF A/S

Steve G skrev:
> I have installed the correct FDO GDAL providers for raster files per the
> instructions on http://trac.osgeo.org/fdo/wiki/FdoGdalNotes.  I am using
> Maestro as the interface to create the data connections, layers, and map
> resources.  I have created a data connection to the raster files (ECWs)
> using the "composite" setting in Maestro.  I've completed the coordinate
> system override.  When I create a layer resource and browse the data using
> the php sample viewer, the data is loaded into the map view just fine.  When
> I create a map and overlay other data (SHP) on the rasters with the same
> coordinate system I get the following responses in the browser:
> -When coordinate system in map settings is blank: shp layers and raster
> files are loaded properly and viewable.
> -When coordinate system in map settings is set: shp are viewable but rasters
> are not.
> I do not think it is a problem with my data because I have been using the
> data for a long time using ESRI products.  One thing I am a little unsure of
> is when you add the raster files in the composite mode, do you just add the
> .ECW files or do you also add the .xml or .aux files as well.
> BTW...I am just getting into this and do not know much about php or xml
> programming (but really trying to learn).  Thanks in advance!
> -Steve

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