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

Steve G steve.golden at morganhill.ca.gov
Wed Oct 29 14:44:23 EDT 2008

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!


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