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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>One other tip is that in the case where everything is to be
classified you can leave the expression off the last class and it becomes a
default. Saves a little processing.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Steve<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
mapserver-users-bounces@lists.osgeo.org
[mailto:mapserver-users-bounces@lists.osgeo.org] <b>On Behalf Of </b>Chris
Jackson<br>
<b>Sent:</b> Friday, September 03, 2010 6:05 AM<br>
<b>To:</b> thomas bonfort<br>
<b>Cc:</b> Rahkonen Jukka; mapserver-users@lists.osgeo.org<br>
<b>Subject:</b> Re: [mapserver-users] Display performance<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'>Ok Folks<br>
<br>
I am now ready to go home and have a sit down!!<br>
I have re-classified the layer with a new class column and then ordered the
shapefile by the most common classes..... <br>
<br>
the results are in......<br>
<br>
<3.5 secs for the entire layer to draw!! (only a saving of 21secs +) - the
main saving was by just reclassifying.<br>
<br>
Thanks to all as this has been a great learning experience, I am now going to
see if I can find a bigger model grid to play with.....! ;o)<br>
<br>
Chris<o:p></o:p></p>
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<p class=MsoNormal>On 3 September 2010 11:07, thomas bonfort <<a
href="mailto:thomas.bonfort@gmail.com">thomas.bonfort@gmail.com</a>> wrote:<o:p></o:p></p>
<p class=MsoNormal>That would be the fastest yes. Even more so if you order the
classes<br>
inside your layer by order of occurences, i.e. the most common classes<br>
first, and the least common ones last.<br>
<br>
--<br>
thomas<o:p></o:p></p>
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<p class=MsoNormal><br>
On Fri, Sep 3, 2010 at 11:54, Chris Jackson <<a
href="mailto:webturtles@gmail.com">webturtles@gmail.com</a>> wrote:<br>
> Jukka<br>
><br>
> Thank you for the code I will give it a go. I guess I will dust off
the<br>
> field calculator in ArcMap and see if that improves things somewhat, I
guess<br>
> that is a similar overhead when classifying a raster by pixel value (not<br>
> sure how to fix that). So if I understand you right then I would
just use a<br>
> number per class (1-15 say) in the new attribute field and then code<br>
> something like:<br>
><br>
> CLASSITEM "MEAN_SP_PC"<br>
> CLASS<br>
> EXPRESSION "1"<br>
> NAME "> 4.00 (m/s)"<br>
> STYLE<br>
> COLOR 135 99 64<br>
> END<br>
> END<br>
><br>
> Thanks again for the insight.<br>
> Chris<br>
><br>
><o:p></o:p></p>
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<p class=MsoNormal>> _______________________________________________<br>
> mapserver-users mailing list<o:p></o:p></p>
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<p class=MsoNormal>> <a href="mailto:mapserver-users@lists.osgeo.org">mapserver-users@lists.osgeo.org</a><o:p></o:p></p>
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<p class=MsoNormal>> <a
href="http://lists.osgeo.org/mailman/listinfo/mapserver-users" target="_blank">http://lists.osgeo.org/mailman/listinfo/mapserver-users</a><br>
><br>
><o:p></o:p></p>
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<p class=MsoNormal><o:p> </o:p></p>
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