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<title>RE: [mapguide-users] RE: WMS Data Source?</title>
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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>> </span></font><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'>What do you mean by
ourselves? Included in the MapGuide installation (local reference)?
Hosted somewhere at OSGeo?</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Nope, that’s Friday Night Bleary-eyed Syndrome
on my part. I saw “http://schemas.opengis.net/...” but mentally processed “https://schemas.osgeo.org/...”
– basically conflating the two domains in your original message.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>And in light of that realization...<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>> </span></font><font size=2
color=black face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:black'>Counting on the persistence of a single external resource in
a distributed system doesn't seem like a great idea</span></font><font size=2
color=navy face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:navy'>”<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> … seems like we’re just trading one
culprit for another by going to opengis.net, since it, too, would be that
single point of contact. Hosting it on osgeo.org would be a <a
href="http://catb.org/jargon/html/G/Good-Thing.html">Good Thing</a> for a
distributed system, no? It would certainly take a bit of load off of the
OpenGIS servers for what are essentially static documents.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Ideally, though, you’re right: the truly
robust installation will simply host the DTDs on its own webserver, updating
the templates accordingly. That’s not hard for the site admin to do, either.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>- Thomas<o:p></o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> Jason Birch
[mailto:Jason.Birch@nanaimo.ca] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, November 03, 2006
6:06 PM<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">users@mapguide.osgeo.org</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [mapguide-users] RE:
WMS Data Source?</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:black'>OK, weird choice from the specification
pov then. Counting on the persistence of a single external
resource in a distributed system doesn't seem like a great idea. One
change brings the whole thing tumbling down.</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>What do you mean by ourselves? Included in the
MapGuide installation (local reference)? Hosted somewhere at OSGeo?</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:black'>Jason<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><br>
<o:p></o:p></span></font></p>
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<p class=MsoNormal style='margin-bottom:12.0pt'><b><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma;font-weight:bold'>From:</span></font></b><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> Thomas M.
Tuerke<br>
<b><span style='font-weight:bold'>Sent:</span></b> Fri 2006-11-03 5:49 PM<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">users@mapguide.osgeo.org</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [mapguide-users] RE:
WMS Data Source?</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hi Jason,</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Just a bit of historical perspective:</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-left:.25in'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>> … instead of digitalearth
(weird choice):</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Deprecated, perhaps, but not necessarily weird. It’s what
the relevant specs call for, and until recently they seemed to work just fine.</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Fortunately, it looks like we’ve decided to host the DTD
files ourselves to eliminate that external dependency.</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>- Thomas</span></font><o:p></o:p></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> Jason Birch
[mailto:Jason.Birch@nanaimo.ca] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, November 03, 2006
5:34 PM<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">users@mapguide.osgeo.org</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [mapguide-users] RE:
WMS Data Source?</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:black'>This is a known issue:</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><a href="https://mapguide.osgeo.org/servlets/Scarab?id=MG434"><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>https://mapguide.osgeo.org/servlets/Scarab?id=MG434</span></font></a><o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>It looks like you may be able to fix it by grabbing the
three fixed files from SVN:</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><a
href="https://mapguide.osgeo.org/source/browse/mapguide/branches/1.0.x/MgDev/Server/src/Wms/"><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>https://mapguide.osgeo.org/source/browse/mapguide/branches/1.0.x/MgDev/Server/src/Wms/</span></font></a><o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>or just updating the AWD templates on your site to hit OGC
instead of digitalearth (weird choice):</span></font><o:p></o:p></p>
</div>
<div><pre><font size=2 face="Courier New"><span style='font-size:10.0pt'><a
href="http://schemas.opengis.net/wms/1.0.0/capabilities_1_0_0.dtd"><font
face=Arial><span style='font-family:Arial'>http://schemas.opengis.net/wms/1.0.0/capabilities_1_0_0.dtd</span></font></a><o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><a
href="http://schemas.opengis.net/wms/1.1.0/capabilities_1_1_0.dtd"><font
face=Arial><span style='font-family:Arial'>http://schemas.opengis.net/wms/1.1.0/capabilities_1_1_0.dtd</span></font></a><o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> <o:p></o:p></span></font></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'><a
href="http://schemas.opengis.net/wms/1.1.1/capabilities_1_1_1.dtd"></a></span></font><font
face=Arial><span style='font-family:Arial'><a
href="http://schemas.opengis.net/wms/1.1.1/capabilities_1_1_1.dtd">http://schemas.opengis.net/wms/1.1.1/capabilities_1_1_1.dtd</a></span></font><o:p></o:p></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> <o:p></o:p></span></font></pre><pre><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>respectively, for the three templates.</span></font><o:p></o:p></pre><pre><font
size=2 face="Courier New"><span style='font-size:10.0pt'> <o:p></o:p></span></font></pre><pre><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>I recall something similar with LiteView in MapGuide 6.x, and I think I had to repoint to a local DTD. Bit fuzzy on that though; I gave up on LiteView pretty quickly.</span></font><o:p></o:p></pre></div>
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<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:black'>Jason</span></font><o:p></o:p></p>
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<p class=MsoNormal style='margin-bottom:12.0pt'><b><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma;font-weight:bold'>From:</span></font></b><font
size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> <st1:PersonName
w:st="on">Andy Morsell</st1:PersonName><br>
<b><span style='font-weight:bold'>Sent:</span></b> Fri 2006-11-03 5:12 PM<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">users@mapguide.osgeo.org</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [mapguide-users] RE:
WMS Data Source?</span></font><o:p></o:p></p>
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<p><font size=2 face="Times New Roman"><span style='font-size:10.0pt'>There is
an OSGeo FDO WMS data provider for this purpose<br>
(<a
href="https://mapguide.osgeo.org/servlets/ProjectDocumentList?folderID=100&expand">https://mapguide.osgeo.org/servlets/ProjectDocumentList?folderID=100&expand</a><br>
Folder=100&folderID=0). However, I just tried working with it and
there<br>
appears to be a problem today. If you try to use it to define a data<br>
connection, and then enter a WMS server name and press the Test Connection<br>
button, you will get an error<br>
<br>
"An exception occurred in FDO component.<br>
XML Document parse error at line 8 column 3: An exception occurred!<br>
Type:NetAccessorException, Message:The host/address 'www.digitalearth.gov'<br>
could not be resolved "<br>
<br>
It appears that the FDO provider is looking up a DTD at digitalearth.gov and<br>
their web site is currently down (at least on my end). </span></font><o:p></o:p></p>
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