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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'>Adam, the only way to get good
performance out of large rasters like that or even shapefiles for the matter is
to tile them (<a href="http://mapserver.gis.umn.edu/docs/howto/optimizeraster">http://mapserver.gis.umn.edu/docs/howto/optimizeraster</a>
or <a href="http://mapserver.gis.umn.edu/docs/howto/optimizevector">http://mapserver.gis.umn.edu/docs/howto/optimizevector</a>)
. Also only let your users display the layer at a lower scale. To tile a
layer you can use some gdal/ogr utilities that come with MS4W. Take a look at
this page for more guidance. <a href="http://www.gdal.org/gdal_utilities.html">http://www.gdal.org/gdal_utilities.html</a>
and <a href="http://www.gdal.org/ogr/ogr_utilities.html">http://www.gdal.org/ogr/ogr_utilities.html</a>
and <a
href="http://mapserver.gis.umn.edu/docs/reference/utilityreference/tile4ms">http://mapserver.gis.umn.edu/docs/reference/utilityreference/tile4ms</a>.
<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'>Hope this helps,<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'>Brian<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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<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'>
geomoose-developers-bounces@lists.sourceforge.net [mailto:geomoose-developers-bounces@lists.sourceforge.net]
<b><span style='font-weight:bold'>On Behalf Of </span></b>Adam Feidt<br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, April 25, 2008 11:59
AM<br>
<b><span style='font-weight:bold'>To:</span></b>
geomoose-developers@lists.sourceforge.net; geomoose-users@lists.sourceforge.net<br>
<b><span style='font-weight:bold'>Subject:</span></b> [Geomoose-developers]
Raster & contours</span></font><font size=3 face="Times New Roman"><span
style='font-size:12.0pt;font-family:"Times New Roman"'><o:p></o:p></span></font></p>
</div>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>I’ve
got a fairly large city-wide ArcInfo Grid that displays elevation data loaded
in a Moose project. I’m trying to balance redraw times without
losing significant detail, but I am having problems because the raster seems to
be redrawing at different speeds. Initially it will redraw around 30-45
seconds. Once it has loaded the redraw gets much better around 2 to 5
seconds. Eventually after a little while the redraw goes back to 30-45
seconds. Is mapserver caching the image for a certain amount of time and
after a specified time calling for it to redraw? Can I adjust the
settings for this layer to never redraw or to store the cache permanently?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>Also,
it appears when I zoom in and out or go to full extent enough times the layers
stall and won’t redraw. Is this a bug or how can I fix this
problem?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>Adam
M. Feidt<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>GIS
Coordinator<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>City
of <st1:City w:st="on"><st1:place w:st="on">Eden Prairie</st1:place></st1:City><o:p></o:p></span></font></p>
<p class=MsoNormal><st1:Street w:st="on"><st1:address w:st="on"><font size=2
face=Calibri><span style='font-size:11.0pt'>8080 Mitchell Rd</span></font></st1:address></st1:Street><o:p></o:p></p>
<p class=MsoNormal><st1:place w:st="on"><st1:City w:st="on"><font size=2
face=Calibri><span style='font-size:11.0pt'>Eden Prairie</span></font></st1:City>,
<st1:State w:st="on">MN</st1:State> <st1:PostalCode w:st="on">55344</st1:PostalCode></st1:place><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>phone#
952-949-8443<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>fax#
952-949-8334<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
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