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<p class=MsoNormal><span class=EmailStyle15><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'>Adam,<o:p></o:p></span></font></span></p>

<p class=MsoNormal><span class=EmailStyle15><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></font></span></p>

<p class=MsoNormal><span class=EmailStyle15><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'>Have you
thought about creating the thematic overlays interactively using SLDs? <o:p></o:p></span></font></span></p>

<p class=MsoNormal><span class=EmailStyle15><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></font></span></p>

<p class=MsoNormal><span class=EmailStyle15><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'>See <a
href="http://www.cubewerx.com.au/DemoDrapes.html">http://www.cubewerx.com.au/DemoDrapes.html</a>
<o:p></o:p></span></font></span></p>

<p class=MsoNormal><span class=EmailStyle15><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></font></span></p>

<p class=MsoNormal><span class=EmailStyle15><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'>Cheers,<o:p></o:p></span></font></span></p>

<p class=MsoNormal><span class=EmailStyle15><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></font></span></p>

<p class=MsoAutoSig><!--[if supportFields]><span class=EmailStyle15><font 
size=2 color=navy face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:
12.0pt;font-family:Arial'><span style='mso-element:field-begin'></span><span 
style="mso-spacerun: yes">&nbsp;</span>AUTOTEXTLIST \s &quot;E-mail 
Signature&quot; <span style='mso-element:field-separator'></span></span></font></span><![endif]--><b><font
size=4 color=navy><span style='font-size:14.0pt;mso-bidi-font-size:12.0pt;
color:navy;font-weight:bold'>Brad Spencer</span></font></b><b><font size=4
color=navy><span style='font-size:14.0pt;mso-bidi-font-size:12.0pt;color:navy;
mso-color-alt:windowtext;font-weight:bold'><o:p></o:p></span></font></b></p>

<p class=MsoAutoSig><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'>General Manager</span></font><font
color=navy><span style='color:navy;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoAutoSig><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'>CubeWerx Australia Pty Ltd</span></font><font
color=navy><span style='color:navy;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoAutoSig><font size=2 color=navy face="Times New Roman"><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;color:navy'>ABN: 37 115 163
285</span></font><font size=2 color=navy><span style='font-size:10.0pt;
mso-bidi-font-size:12.0pt;color:navy;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoAutoSig><font size=2 color=navy face="Times New Roman"><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;color:navy'>Mob: +61 (0)404
841 131</span></font><font size=2 color=navy><span style='font-size:10.0pt;
mso-bidi-font-size:12.0pt;color:navy;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoAutoSig><font size=2 color=navy face="Times New Roman"><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;color:navy'>Tel/Fax: +61 (0)2
9481 7024</span></font><font size=2 color=navy><span style='font-size:10.0pt;
mso-bidi-font-size:12.0pt;color:navy;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoAutoSig><font size=2 color=navy face="Times New Roman"><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;color:navy'>mailto:brad@cubewerx.com.au</span></font><font
size=2 color=navy><span style='font-size:10.0pt;mso-bidi-font-size:12.0pt;
color:navy;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoAutoSig><font size=2 color=navy face="Times New Roman"><span
style='font-size:10.0pt;mso-bidi-font-size:12.0pt;color:navy'>http://www.cubewerx.com.au</span></font><font
size=2 color=navy><span style='font-size:10.0pt;mso-bidi-font-size:12.0pt;
color:navy;mso-color-alt:windowtext'><o:p></o:p></span></font></p>

<p class=MsoNormal><!--[if supportFields]><span class=EmailStyle15><font 
size=2 color=navy face=Arial><span style='font-size:10.0pt;mso-bidi-font-size:
12.0pt;font-family:Arial'><span style='mso-element:field-end'></span></span></font></span><![endif]--><span
class=EmailStyle15><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;mso-bidi-font-size:12.0pt;font-family:Arial'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></font></span></p>

<p class=MsoNormal style='margin-left:36.0pt'><font size=2 color=black
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma;color:black'>-----Original
Message-----<br>
<b><span style='font-weight:bold'>From:</span></b> Adam Eskreis
[mailto:aeskreis@gmail.com]<br>
<b><span style='font-weight:bold'>Sent:</span></b> Wednesday, 11 April 2007
10:24 AM<br>
<b><span style='font-weight:bold'>To:</span></b> users@openlayers.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> [OpenLayers-Users]
question about overlays</span></font></p>

<p class=MsoNormal style='margin-left:36.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></font></p>

<p class=MsoNormal style='margin-left:36.0pt'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'>I am
currently constructing a map with many thematic layers.&nbsp; For those that
don't know, a thematic layer is a layer which color codes certain polygons
based on a certain field, such as population density or something like
that.&nbsp; I want these thematic layers to be able to be turned on and
off.&nbsp; I have each thematic layer set up as a seperate group in the
mapfile, and i set up each one as a seperate overlay in openlayers.&nbsp;
However, my problem is now i have around 40 overlays on my OpenLayers map.&nbsp;
Is this too many?&nbsp; It is taking a long time to load the map now.&nbsp; So
my question, is having a lot of overlays bad practice?&nbsp; If so, how can i
cut down on overlays, but still be able to have each thematic layer be able to
be shown on demand by the user? Thanks. <br>
<br>
-Adam</span></font><font color=black><span style='color:black;mso-color-alt:
windowtext'><o:p></o:p></span></font></p>

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