[mapguide-users] Re: Using MG_DATA_PATH_ALIAS

[Dave Boyle]

Steve, 

My XML snippet is from the configuration document. I'll have another go, but I had no success using paths linked even to local drives. I have the service running under a different user, as I had to do this in order to get the server to use a netrowk drive for the tile cache.

Regards,
Dave

-----Original Message-----
From: mapguide-users-bounces at lists.osgeo.org [mailto:mapguide-users-bounces at lists.osgeo.org] On Behalf Of Steve G
Sent: 28 June 2011 21:10
To: mapguide-users at lists.osgeo.org
Subject: [mapguide-users] Re: Using MG_DATA_PATH_ALIAS

I am a bit confused by your XML snippet that you copied.  It doesn't look quite right to me.  Below is a test from a sample data definition that I just created (the alias name is "RDriveGIS").

<?xml version="1.0" encoding="utf-8"?>
<FeatureSource xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xsi:noNamespaceSchemaLocation="FeatureSource-1.0.0.xsd">
  <Provider>OSGeo.Gdal</Provider>
  <Parameter>
    <Name>DefaultRasterFileLocation</Name>
   
<Value>%MG_DATA_PATH_ALIAS[RDriveGIS]%Aerials/1995Aerials/TIF/B05.TIF</Value>
  </Parameter>
</FeatureSource>


Can you copy and post the whole XML document?  Just to make sure we're on the same page, the easiest way is use Maestro and click on the button at the top (Maestro 3.x tool name says "Edit as XML"....it looks slightly different in 2.x versions but gives you the same xml doc).

My experience is that you can reference files (unmanaged resources) on the same machine (i.e. "C" drive) or externally like on a file server.  If you reference to a file server via an alias here are some rules I've used to make it work (using MGOS versions 2.0 to 2.2):

1.	Open MapGuide Server v2.x Service properties (Control
Panel>Administrative Tools> Services>Mapguide Server v2.x)
2.	Under the Log On properties, add an account that has permission to access
the network drive 
3.	Click apply.
4.	Stop and restart the service.
5.	Add external files (alias) in MapGuide Site Administrator.
a.	To set-up a connection to a network drive, make sure you use the proper
nomenclature
CORRECT: “\\fileserver\city\utilities\GIS_Data” 
INCORRECT: “R:\city\utilities\GIS_Data”
6.	Stop and restart the service (any changes to the external file aliases
will not change unless you stop and restart the service).

Then go back to Maestro and recreate your data connection / feature source definition (depending on what version of Maestro you are using, the names are slightly different but the function is the same).

I haven't had any problems with TIFs and ECWs (aside from some minor coordinate system issues) while loading from the file server.

-Steve

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