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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'>I am pretty sure it does an immediate
delete of all cached files for the given map, so there will be an I/O hit. Fragmentation
is a concern but it’s hard to say exactly what the impact would be.<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'>Bob<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>
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face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabindex=-1>
</span></font></div>
<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'> Butler, Juan P
[mailto:jpbutler@co.pinellas.fl.us] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Thursday, August 03, 2006
10:40 AM<br>
<b><span style='font-weight:bold'>To:</span></b> users@mapguide.osgeo.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [mapguide-users] Base
Layers that are based on Oracle Spatial data</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>
<div id=idOWAReplyText13248>
<div>
<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>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>You think there is that much of a problem with
fragmentation? We do a similar process now with picture/data files
where we delete them. We do this because of the older system we are
migrating from. I was hoping that I would not have to do this with <st1:City
w:st="on"><st1:place w:st="on">Enterprise</st1:place></st1:City>, but it's not
that big of a deal if I can just automate it. I don't see an IO hit
or fragmentation problem now. </span></font><o:p></o:p></p>
</div>
</div>
<div id=idSignature22625>
<div>
<div>
<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:black'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:black'>Juan Butler - Senior Programmer/Analyst<br>
GIS Applications<br>
<st1:place w:st="on"><st1:PlaceName w:st="on">Pinellas</st1:PlaceName> <st1:PlaceType
w:st="on">County</st1:PlaceType></st1:place> Information Systems<br>
jpbutler@pinellascounty.org<br>
<br>
</span></font><font size=1 color=black face=Arial><span style='font-size:7.5pt;
font-family:Arial;color:black'>Please note: All mail sent to and from Pinellas
County Government is subject to the Public Records Law of Florida.</span></font><font
size=2 color=black face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:black'><o:p></o:p></span></font></p>
</div>
</div>
</div>
<div>
<div>
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face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabIndex=-1>
</span></font></div>
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<div>
<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'> Jason
Birch [mailto:Jason.Birch@nanaimo.ca]<br>
<b><span style='font-weight:bold'>Sent:</span></b> Thu 8/3/2006 12:20 PM<br>
<b><span style='font-weight:bold'>To:</span></b> users@mapguide.osgeo.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [mapguide-users] Base
Layers that are based on Oracle Spatial data</span></font><o:p></o:p></p>
</div>
</div>
<div>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>Bob,</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=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>Does that method actually delete all the
files in the cache, or just mark them as stale?</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=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>I'd be worried about the IO hit
and volume fragmentation resulting from a bulk delete. It would be
better if the server would overwrite existing tiles with modified dates
< the date the cache was last invalidated.</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=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>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>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabIndex=-1>
</span></font></div>
<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'> Robert
Bray [mailto:robert.bray@autodesk.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Thursday, August 03, 2006
07:35<br>
<b><span style='font-weight:bold'>To:</span></b> Butler, Juan P;
users@mapguide.osgeo.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [mapguide-users] Base
Layers that are based on Oracle Spatial data</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'>Juan,</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'>Tile Service has the following method: </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>
<table class=MsoNormalTable border=0 cellspacing=0 cellpadding=0>
<tr>
<td nowrap valign=top style='padding:0in 0in 0in 0in'>
<p class=MsoNormal align=right style='text-align:right'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>virtual void <o:p></o:p></span></font></p>
</td>
<td valign=bottom style='padding:0in 0in 0in 0in'>
<p class=MsoNormal><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'><a
href="file:///C:\Program%20Files\MapGuideOpenSource\WebServerExtensions\Help\df\dba\class_mg_tile_service_16adf9e13f5acc6439571b348180265e.html#16adf9e13f5acc6439571b348180265e">ClearCache</a>
(<a
href="file:///C:\Program%20Files\MapGuideOpenSource\WebServerExtensions\Help\da\df8\class_mg_map.html">MgMap</a>
*map)=0<o:p></o:p></span></font></p>
</td>
</tr>
<tr>
<td style='padding:0in 0in 0in 0in'>
<p class=MsoNormal><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'> <o:p></o:p></span></font></p>
</td>
<td style='padding:0in 0in 0in 0in'>
<p class=MsoNormal><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>Clears the entire tile cache for the given map.
Tiles for all base map layer groups and finite scales will be removed. <a
href="file:///C:\Program%20Files\MapGuideOpenSource\WebServerExtensions\Help\df\dba\class_mg_tile_service.html#16adf9e13f5acc6439571b348180265e#16adf9e13f5acc6439571b348180265e"></a><o:p></o:p></span></font></p>
</td>
</tr>
</table>
<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'>All you need is a little PHP script that
connects to the server and calls this method. Then schedule to run that script
once a week, once a month, or on whatever schedule you feel appropriate. For an
example of how to write such a thing, look in the RepositoryAdmin folder that
lives underneath the server install folder. </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'>Bob</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>
<div>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabIndex=-1>
</span></font></div>
<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'> Butler, Juan P
[mailto:jpbutler@co.pinellas.fl.us] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Thursday, August 03, 2006
8:09 AM<br>
<b><span style='font-weight:bold'>To:</span></b> users@mapguide.osgeo.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [mapguide-users] Base
Layers that are based on Oracle Spatial data</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>
<div id=idOWAReplyText99903>
<div>
<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:black'>Exactly Jason...Like our road
layers. I'm not saying there are many updates but there enough
updates to be worried about the correct data being displayed. I was
seeing a benefit of using the tiles for our roads because of the high use of
this layer.</span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I guess I have my answer and I'll have to either not use
tiles at all or just manually delete them so they can be rebuilt. </span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
</div>
</div>
<div id=idSignature97446>
<div>
<div>
<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:black'>Juan Butler - Senior Programmer/Analyst<br>
GIS Applications<br>
<st1:place w:st="on"><st1:PlaceName w:st="on">Pinellas</st1:PlaceName> <st1:PlaceType
w:st="on">County</st1:PlaceType></st1:place> Information Systems<br>
jpbutler@pinellascounty.org<br>
<br>
</span></font><font size=1 color=black face=Arial><span style='font-size:7.5pt;
font-family:Arial;color:black'>Please note: All mail sent to and from Pinellas
County Government is subject to the Public Records Law of Florida.</span></font><o:p></o:p></p>
</div>
</div>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabIndex=-1>
</span></font></div>
<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'> Traian
Stanev [mailto:traian.stanev@autodesk.com]<br>
<b><span style='font-weight:bold'>Sent:</span></b> Thu 8/3/2006 9:07 AM<br>
<b><span style='font-weight:bold'>To:</span></b> users@mapguide.osgeo.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [mapguide-users] Base
Layers that are based on Oracle Spatial data</span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>Yes, I imagine there is a point at which
base layers make more sense in, like you say, high levels of usage.</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>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabIndex=-1>
</span></font></div>
<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'> Jason
Birch [mailto:Jason.Birch@nanaimo.ca] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Wednesday, August 02, 2006
11:19 PM<br>
<b><span style='font-weight:bold'>To:</span></b> users@mapguide.osgeo.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [mapguide-users] Base
Layers that are based on Oracle Spatial data</span></font><o:p></o:p></p>
<div id=idOWAReplyText68981>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>I don't have much experience with tile caching and the new MapGuide,
but if the data is only being updated once per day or once every few days, and
you have high levels of usage on your web app, I'd have to believe that you
would get some kind of performance return from only having to render those
layers when they are actually modified... Hmm. I think that was a
run-on-sentence.<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Jason<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabIndex=-1>
</span></font></div>
<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'> Traian Stanev
[mailto:traian.stanev@autodesk.com]<br>
<b><span style='font-weight:bold'>Sent:</span></b> Wed 2006-08-02 8:10 PM<br>
<b><span style='font-weight:bold'>To:</span></b> users@mapguide.osgeo.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [mapguide-users] Base
Layers that are based on Oracle Spatial data</span></font><o:p></o:p></p>
</div>
<div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>If the layer will be changing a lot, is there any point for it to be a
base layer at all? Just make it a regular dynamic layer... <o:p></o:p></span></font></p>
</div>
<blockquote style='margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=2
face="Times New Roman"><span style='font-size:10.0pt'>-----Original
Message----- <br>
<b><span style='font-weight:bold'>From:</span></b> Jason Birch
[mailto:Jason.Birch@nanaimo.ca] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Wed 8/2/2006 10:12 PM <br>
<b><span style='font-weight:bold'>To:</span></b> users@mapguide.osgeo.org <br>
<b><span style='font-weight:bold'>Cc:</span></b> <br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [mapguide-users] Base
Layers that are based on Oracle Spatial data</span></font><o:p></o:p></p>
</div>
<div id=idOWAReplyText44734>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:black'>It would be useful to set a property on
the layer like InvalidateDate that would force tile-replacement for tiles that
are older than that date. If this feature was available, it
would be possible to set up a trigger in Oracle to invalidate the tile
cache for affected layers. I'd prefer this method to just deleting the
cache, because of the huge file IO caused by the delete, and because it would
reduce fragmentation of the volume. This would be usable by other external
processes, such as daily SDF updates via FME, etc...</span></font><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Jason</span></font><o:p></o:p></p>
</div>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabIndex=-1>
</span></font></div>
<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'> Traian
Stanev [mailto:traian.stanev@autodesk.com]<br>
<b><span style='font-weight:bold'>Sent:</span></b> Wed 2006-08-02 4:42 PM<br>
<b><span style='font-weight:bold'>To:</span></b> users@mapguide.osgeo.org;
users@mapguide.osgeo.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [mapguide-users] Base
Layers that are based on Oracle Spatial data</span></font><o:p></o:p></p>
</div>
<div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>As far as I understand it, only changes to the layer or map definitions
will be detected. For example change in the styling for the layer. Changes to
the actual data in Oracle will not be detected. <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Traian<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
</div>
<blockquote style='margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=2
face="Times New Roman"><span style='font-size:10.0pt'>-----Original
Message----- <br>
<b><span style='font-weight:bold'>From:</span></b> <st1:City w:st="on"><st1:place
w:st="on">Butler</st1:place></st1:City>, Juan P
[mailto:jpbutler@co.pinellas.fl.us] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Wed 8/2/2006 5:36 PM <br>
<b><span style='font-weight:bold'>To:</span></b> users@mapguide.osgeo.org <br>
<b><span style='font-weight:bold'>Cc:</span></b> <br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [mapguide-users] Base
Layers that are based on Oracle Spatial data</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Well, I’ve been told that <st1:City
w:st="on"><st1:place w:st="on">Enterprise</st1:place></st1:City> handles the
changes to data that is stored in the repositories. From my
understanding, data that is changed in the repositories will be marked in
someway so that the tiles can be rebuilt as needed. Can
someone from Autodesk please clarify this? </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=Verdana><span style='font-size:10.0pt;
font-family:Verdana'>Juan Butler - Senior Programmer/Analyst<br>
GIS Applications<br>
<st1:place w:st="on"><st1:PlaceName w:st="on">Pinellas</st1:PlaceName> <st1:PlaceType
w:st="on">County</st1:PlaceType></st1:place> Information Systems<br>
<a href="mailto:jpbutler@pinellascounty.org">jpbutler@pinellascounty.org</a></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=1 color="#333333" face=Verdana><span
style='font-size:8.0pt;font-family:Verdana;color:#333333'>Please note: All mail
sent to and from Pinellas County Government is subject to the Public Records
Law of Florida.</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=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<div>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabIndex=-1>
</span></font></div>
<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'> Andy Morsell
[mailto:amorsell@spatialgis.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Wednesday, August 02, 2006
5:30 PM<br>
<b><span style='font-weight:bold'>To:</span></b> users@mapguide.osgeo.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [mapguide-users] Base
Layers that are based on Oracle Spatial data</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>
<p class=MsoNormal><font size=2 color=blue face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:blue'>My understanding of the current
functionality of base layers is that they don't update themselves based on an
underlying data change regardless of the source data type. This would be
up to you to delete the images from your TileCache directory to force them to
rebuild the next time somebody viewed that map area.</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>
</div>
<p><font size=1 face=Tahoma><span style='font-size:7.5pt;font-family:Tahoma'>Andy
Morsell, P.E.</span></font> <br>
<font size=1 face=Tahoma><span style='font-size:7.5pt;font-family:Tahoma'>Spatial
Integrators, Inc.</span></font> <br>
<font size=1 face=Tahoma><span style='font-size:7.5pt;font-family:Tahoma'><a
href="http://www.SpatialGIS.com">http://www.SpatialGIS.com</a></span></font> <o:p></o:p></p>
<div>
<div class=MsoNormal align=center style='text-align:center'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>
<hr size=2 width="100%" align=center tabIndex=-1>
</span></font></div>
<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'> Butler,
Juan P [mailto:jpbutler@co.pinellas.fl.us] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Wednesday, August 02, 2006
2:02 PM<br>
<b><span style='font-weight:bold'>To:</span></b> users@mapguide.osgeo.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> [mapguide-users] Base
Layers that are based on Oracle Spatial data</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Does anyone at Autodesk (or anyone that has tested it
already) know if I use Oracle Spatial data for my base layers, will Mapguide
Enterprise know about the changes and update the tiles accordingly?
I’m in the process of testing this and just wanted to know if anyone has
had any experience with it.</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'>Thanks.</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=Verdana><span style='font-size:10.0pt;
font-family:Verdana'>Juan Butler - Senior Programmer/Analyst<br>
GIS Applications<br>
<st1:place w:st="on"><st1:PlaceName w:st="on">Pinellas</st1:PlaceName> <st1:PlaceType
w:st="on">County</st1:PlaceType></st1:place> Information Systems<br>
<a href="mailto:jpbutler@pinellascounty.org">jpbutler@pinellascounty.org</a></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=1 color="#333333" face=Verdana><span
style='font-size:8.0pt;font-family:Verdana;color:#333333'>Please note: All mail
sent to and from Pinellas County Government is subject to the Public Records
Law of Florida.</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>
</blockquote>
</div>
</blockquote>
</div>
</div>
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