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<DIV dir=ltr align=left><SPAN class=079230413-03082006><FONT face=Arial
color=#0000ff size=2>Yes, I imagine there is a point at which base layers make
more sense in, like you say, high levels of usage.</FONT></SPAN></DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> Jason Birch
[mailto:Jason.Birch@nanaimo.ca] <BR><B>Sent:</B> Wednesday, August 02, 2006
11:19 PM<BR><B>To:</B> users@mapguide.osgeo.org<BR><B>Subject:</B> RE:
[mapguide-users] Base Layers that are based on Oracle Spatial
data<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV id=idOWAReplyText68981 dir=ltr>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.</DIV>
<DIV dir=ltr> </DIV>
<DIV dir=ltr>Jason</DIV>
<DIV dir=ltr><BR>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> Traian Stanev
[mailto:traian.stanev@autodesk.com]<BR><B>Sent:</B> Wed 2006-08-02 8:10
PM<BR><B>To:</B> users@mapguide.osgeo.org<BR><B>Subject:</B> RE:
[mapguide-users] Base Layers that are based on Oracle Spatial
data<BR></FONT><BR></DIV>
<DIV>
<DIV>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... </DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV><FONT size=2>-----Original Message----- <BR><B>From:</B> Jason Birch
[mailto:Jason.Birch@nanaimo.ca] <BR><B>Sent:</B> Wed 8/2/2006 10:12 PM
<BR><B>To:</B> users@mapguide.osgeo.org <BR><B>Cc:</B> <BR><B>Subject:</B> RE:
[mapguide-users] Base Layers that are based on Oracle Spatial
data<BR><BR></FONT></DIV>
<DIV id=idOWAReplyText44734 dir=ltr>
<DIV dir=ltr><FONT face=Arial color=#000000 size=2></FONT> </DIV>
<DIV dir=ltr><FONT face=Arial color=#000000 size=2>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...</FONT></DIV>
<DIV dir=ltr><FONT face=Arial size=2></FONT> </DIV>
<DIV dir=ltr><FONT face=Arial size=2>Jason</FONT></DIV></DIV>
<DIV dir=ltr><BR>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> Traian Stanev
[mailto:traian.stanev@autodesk.com]<BR><B>Sent:</B> Wed 2006-08-02 4:42
PM<BR><B>To:</B> users@mapguide.osgeo.org;
users@mapguide.osgeo.org<BR><B>Subject:</B> RE: [mapguide-users] Base Layers
that are based on Oracle Spatial data<BR></FONT><BR></DIV>
<DIV>
<DIV> </DIV>
<DIV>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. </DIV>
<DIV> </DIV>
<DIV>Traian</DIV>
<DIV> </DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV><FONT size=2>-----Original Message----- <BR><B>From:</B> Butler, Juan P
[mailto:jpbutler@co.pinellas.fl.us] <BR><B>Sent:</B> Wed 8/2/2006 5:36 PM
<BR><B>To:</B> users@mapguide.osgeo.org <BR><B>Cc:</B> <BR><B>Subject:</B>
RE: [mapguide-users] Base Layers that are based on Oracle Spatial
data<BR><BR></FONT></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Well, I’ve been
told that Enterprise 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></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Juan Butler - Senior
Programmer/Analyst<BR>GIS Applications<BR>Pinellas County Information
Systems<BR><A
href="mailto:jpbutler@pinellascounty.org">jpbutler@pinellascounty.org</A><FONT
color=navy><SPAN style="COLOR: navy"></SPAN></FONT></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Verdana color=#333333 size=1><SPAN
style="FONT-SIZE: 8pt; COLOR: #333333; FONT-FAMILY: Verdana">Please note:
All mail sent to and from Pinellas County Government is subject to the
Public Records Law of Florida.</SPAN></FONT><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<DIV>
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face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt">
<HR tabIndex=-1 align=center width="100%" SIZE=2>
</SPAN></FONT></DIV>
<P class=MsoNormal><B><FONT face=Tahoma size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">From:</SPAN></FONT></B><FONT
face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; 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></P></DIV>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial color=blue size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial">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></P>
<DIV>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"></SPAN></FONT> </P></DIV>
<P><FONT face=Tahoma size=1><SPAN
style="FONT-SIZE: 7.5pt; FONT-FAMILY: Tahoma">Andy Morsell,
P.E.</SPAN></FONT> <BR><FONT face=Tahoma size=1><SPAN
style="FONT-SIZE: 7.5pt; FONT-FAMILY: Tahoma">Spatial Integrators,
Inc.</SPAN></FONT> <BR><FONT face=Tahoma size=1><SPAN
style="FONT-SIZE: 7.5pt; FONT-FAMILY: Tahoma"><A
href="http://www.SpatialGIS.com">http://www.SpatialGIS.com</A></SPAN></FONT>
</P>
<DIV>
<DIV class=MsoNormal style="TEXT-ALIGN: center" align=center><FONT
face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt">
<HR tabIndex=-1 align=center width="100%" SIZE=2>
</SPAN></FONT></DIV>
<P class=MsoNormal style="MARGIN-BOTTOM: 12pt"><B><FONT face=Tahoma
size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">From:</SPAN></FONT></B><FONT
face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; 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></P></DIV>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; 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></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Thanks.</SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Verdana size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Verdana">Juan Butler - Senior
Programmer/Analyst<BR>GIS Applications<BR>Pinellas County Information
Systems<BR><A
href="mailto:jpbutler@pinellascounty.org">jpbutler@pinellascounty.org</A><FONT
color=navy><SPAN style="COLOR: navy"></SPAN></FONT></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P>
<P class=MsoNormal><FONT face=Verdana color=#333333 size=1><SPAN
style="FONT-SIZE: 8pt; COLOR: #333333; FONT-FAMILY: Verdana">Please note:
All mail sent to and from Pinellas County Government is subject to the
Public Records Law of Florida.</SPAN></FONT><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN></FONT> </P></DIV></BLOCKQUOTE></DIV></BLOCKQUOTE></DIV></BODY></HTML>