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<div class=Section1>
<p class=MsoNormal><font size=2 color=blue face=Calibri><span style='font-size:
11.0pt;font-family:Calibri;color:blue'>Thanks Trevor,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Calibri><span style='font-size:
11.0pt;font-family:Calibri;color:blue'>That was very clear – <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Calibri><span style='font-size:
11.0pt;font-family:Calibri;color:blue'>I appreciate the time you have spent on
this already – as well as all the other developers’ contributions.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Calibri><span style='font-size:
11.0pt;font-family:Calibri;color:blue'>It has been a bit of an uphill battle
getting an Open Source footprint in the Ministry – these efforts help a great
deal in utilizing the tool.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Calibri><span style='font-size:
11.0pt;font-family:Calibri;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Calibri><span style='font-size:
11.0pt;font-family:Calibri;color:blue'>Thanks again,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Calibri><span style='font-size:
11.0pt;font-family:Calibri;color:blue'>Mike<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Calibri><span style='font-size:
11.0pt;font-family:Calibri;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=blue face=Calibri><span style='font-size:
11.0pt;font-family:Calibri;color:blue'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal><b><font size=1 color=navy face="Times New Roman"><span
style='font-size:7.5pt;color:navy;font-weight:bold'>Michael Micallef, PMP<o:p></o:p></span></font></b></p>
<p class=MsoNormal><b><font size=1 color=navy face="Times New Roman"><span
style='font-size:7.5pt;color:navy;font-weight:bold'>Regional GIS Coordinator<o:p></o:p></span></font></b></p>
<p class=MsoNormal><font size=1 color=navy face="Times New Roman"><span
style='font-size:7.5pt;color:navy'>Ministry of Transportation<o:p></o:p></span></font></p>
<p class=MsoNormal><st1:place w:st="on"><font size=1 color=navy
face="Times New Roman"><span style='font-size:7.5pt;color:navy'>659 Exeter Rd,
<st1:City w:st="on">London</st1:City>, <st1:State w:st="on">ON</st1:State>, <st1:PostalCode
w:st="on">N6E 1L3</st1:PostalCode></span></font></st1:place><font size=1
color=navy><span style='font-size:7.5pt;color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 color=navy face="Times New Roman"><span
style='font-size:7.5pt;color:navy'>519-873-4416<o:p></o:p></span></font></p>
<p class=MsoNormal><i><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy;font-style:italic'><a href="/user/SendEmail.jtp?type=node&node=6702907&i=0" target="_top" rel="nofollow" link="external">[hidden email]</a></span></font></i><i><u><font
size=2 color=blue><span style='font-size:11.0pt;color:blue;font-style:italic'><o:p></o:p></span></font></u></i></p>
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width=87 height=87 id="_x0000_i1027" src="/attachment/6702907/0/image001.jpg"
style='float:right;margin-bottom:5px;margin-left:5px;margin-right:0px;
margin-top:20px' alt="QR Code"></span></font><o:p></o:p></p>
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<p class=MsoNormal style='margin-left:.5in'><b><font size=2 face=Tahoma><span
lang=EN-US style='font-size:10.0pt;font-family:Tahoma;font-weight:bold'>From:</span></font></b><font
size=2 face=Tahoma><span lang=EN-US style='font-size:10.0pt;font-family:Tahoma'>
Trevor Wekel [via OSGeo.org]
[mailto:<a href="/user/SendEmail.jtp?type=node&node=6702907&i=1" target="_top" rel="nofollow" link="external">[hidden email]</a>] <br>
<b><span style='font-weight:bold'>Sent:</span></b> August 18, 2011 5:18 PM<br>
<b><span style='font-weight:bold'>To:</span></b> Micallef, Michael (MTO)<br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: Is GDAL working and
Stable in 2.2?</span></font><span lang=EN-US><o:p></o:p></span></p>
</div>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:
12.0pt;margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>Hi Mike, <br>
<br>
I have successfully performed lightweight load testing on the 64 bit Windows
build with some ECW, MrSID, and TIFF data using the information contained at <a
href="http://trac.osgeo.org/mapguide/wiki/MGOS22GdalProvider" target="_top" link="external" rel="nofollow">http://trac.osgeo.org/mapguide/wiki/MGOS22GdalProvider</a>.
So yes, for my data set I would say that it is stable. <br>
<br>
There are a few limitations which may impact your implementation: <br>
<br>
Occasionally MapGuide does not correctly return the extents or coordinate
system of the raster data. This makes authoring more difficult.
Jackie has a patch to improve this behaviour attached to <a
href="http://trac.osgeo.org/mapguide/ticket/740" target="_top" link="external" rel="nofollow">http://trac.osgeo.org/mapguide/ticket/740</a>.
<br>
<br>
The FDO GDAL Provider has only been tested with a single connection. <br>
[FeatureServiceProperties] <br>
DataConnectionPoolSizeCustom = OSGeo.Gdal:1 <br>
<br>
Enabling multiple connections may cause raster to go unstable. This means
that MapGuide and FDO GDAL will only process one raster data set concurrently.
If you have a lot of users and a lot different raster data sets, this
could be a significant bottleneck. <br>
<br>
I would like to take another pass at MapGuide & FDO GDAL for the 2.4
release. There is some interest in adding configurable resampling
(bilinear, cubic, etc) and we really do need to remove the single connection
limitation. I can make time available to do this work if funding is
available. This would move MapGuide + FDO GDAL Provider closer to parity
with MapGuide + Autodesk Raster Provider. <br>
<br>
Regards, <br>
Trevor <br>
<br>
<br>
-----Original Message----- <br>
From: <a href="/user/SendEmail.jtp?type=node&node=6700916&i=0"
target="_top" link="external" rel="nofollow">[hidden email]</a> [mailto:<a
href="/user/SendEmail.jtp?type=node&node=6700916&i=1" target="_top" link="external" rel="nofollow">[hidden email]</a>] On Behalf Of Mike Micallef <br>
Sent: August 18, 2011 2:20 PM <br>
To: <a href="/user/SendEmail.jtp?type=node&node=6700916&i=2"
target="_top" link="external" rel="nofollow">[hidden email]</a> <br>
Subject: [mapguide-users] Is GDAL working and Stable in 2.2? <br>
<br>
Not complaining - just discouraged... <br>
<br>
Is GDAL working and stable in 2.2 - all kinds of different and older posts <br>
out there about partial work-arounds, Trevor’s investigation, locking it up, <br>
this is the problem, that’s the problem... <br>
<br>
We use imagery and it has been a struggle migrating through the releases and <br>
trying out the fixes - I do not want to move until I am sure how to handle <br>
the imagery. <br>
<br>
We have custom code all over the place and to migrate is a bit of an <br>
undertaking.... <br>
m <br>
<br>
-- <br>
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