Re: [mapguide-users] Using MG_DATA_PATH_ALIAS

Andrew DeMerchant Fri, 24 Jun 2011 09:40:24 -0700

Title: GEMTEC Email Signature

Is your alias pointing to a mapped drive or UNC, then? My understanding is that that doesn't work (at least, it certainly didn't work in older versions). As far as I know, the alias needs to be local to the MGOS server. I've also checked my XML, and yours looks completely different - are you using MG Enterprise? I only know MGOS, anyway - I've got no idea about the Autocad Raster provider. With MGOS, you need to use the OSGEO Gdal provider - which to me, looks like you're not. Here's a censored version of the XML from one of mine:

<?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[aliasname]%GIS/air_photos/Oct_14_2010/</Value>
</Parameter>
<SupplementalSpatialContextInfo>
    <Name>NAD83 / UTM zone 20N</Name>
    <CoordinateSystem>PROJCS["NAD83 / UTM zone 20N",GEOGCS["NAD83",DATUM["North_American_Datum_1983",SPHEROID["GRS 1980",6378137,298.2572221010002,AUTHORITY["EPSG","7019"]],AUTHORITY["EPSG","6269"]],PRIMEM["Greenwich",0],UNIT["degree",0.0174532925199433],AUTHORITY["EPSG","4269"]],PROJECTION["Transverse_Mercator"],PARAMETER["latitude_of_origin",0],PARAMETER["central_meridian",-63],PARAMETER["scale_factor",0.9996],PARAMETER["false_easting",500000],PARAMETER["false_northing",0],UNIT["metre",1,AUTHORITY["EPSG","9001"]],AUTHORITY["EPSG","26920"]]</CoordinateSystem>
</SupplementalSpatialContextInfo>
</FeatureSource>

Andrew

On 11/06/24 1:24 PM, Dave Boyle wrote:

Hi Andrew,

Thanks for the input. Yes the alias is set correctly, as are permissions. I’ve tried

        <RasterDefinition name="images">

          <Location name="%MG_DATA_PATH_ALIAS[OS_Street_Map]%data/">

            <Feature name="%MG_DATA_PATH_ALIAS[OS_Street_Map]%data/hp40se.tif"><Band name="RGB" number="1"><Image name="hp40se.tif" frame="1">

And

        <RasterDefinition name="images">

          <Location name="%MG_DATA_PATH_ALIAS[OS_Street_Map]%data/">

            <Feature name="%MG_DATA_PATH_ALIAS[OS_Street_Map]%data/\hp40se.tif"><Band name="RGB" number="1"><Image name="hp40se.tif" frame="1">

And

        <RasterDefinition name="images">

          <Location name="MapData">

            <Feature name="%MG_DATA_PATH_ALIAS[OS_Street_Map]%data/\hp40se.tif"><Band name="RGB" number="1"><Image name="hp40se.tif" frame="1">

None seem to work. The problem I have is that I need to move the tifs off the C: drive and onto a network drive, as the C: drive is getting full. If you have a similar setup, would you be able to check the way your xml goes please?

Regards,

Dave

From: Andrew DeMerchant [mailto:andrew.demerch...@gemtec.ca]
Sent: 24 June 2011 14:34
To: d...@daveboyle.co.uk; MapGuide Users Mail List
Subject: Re: [mapguide-users] Using MG_DATA_PATH_ALIAS

Well, first, I'm assuming that your alias is set up correctly...but aside from that, the only difference that I see between the 2 "<feature name>" sections is that the path is in the local version, but missing from the aliased version. I'd certainly try putting that path in there....I've never looked at the raw XML for my own raster layers, so I can't help much beyond that.

Andrew

On 11/06/24 10:20 AM, Dave Boyle wrote:

Hi all,

Struggling – can someone tell me why this works :

        <RasterDefinition name="images">

          <Location name="C:\Maps/data/">

            <Feature name="C:\Maps/data/\hp40se.tif"><Band name="RGB" number="1"><Image name="hp40se.tif" frame="1">

But this doesn’t ?

        <RasterDefinition name="images">

          <Location name="%MG_DATA_PATH_ALIAS[OS_Street_Map]%data/">

            <Feature name="hp40se.tif"><Band name="RGB" number="1"><Image name="hp40se.tif" frame="1">

Dave
 
 
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Re: [mapguide-users] Using MG_DATA_PATH_ALIAS

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