<html><body bgcolor="#FFFFFF"><div>I think you're starting to push the browser limits with that many vector features..<br><br>Sent from my mobile device</div><div><br>On Jun 10, 2011, at 3:56 PM, JK Chen <<a href="mailto:jk.chen@sdl.usu.edu">jk.chen@sdl.usu.edu</a>> wrote:<br><br></div><div></div><blockquote type="cite"><div>
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<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">My program creates 2000 markers, each associated with a polygon, which represents the area of an aerial image.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">When I pan the map, the features that now go in the viewport are not always get drawn. If I click on the vector layer Select item in the switcher control, then they are drawn after clicking on the switcher.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman"">
</span></span>What could cause the problem of no-drawing?<o:p></o:p></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman"">
</span></span>I noticed noticeable performance latency. Any idea how to improve or how to design when dealing with thousands (could be tens of thousands) of markers/polygons?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks for your help.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">JK<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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