<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman,new york,times,serif;font-size:12pt"><div>Hi David,<br><br>if you want to use a loading image you can use OpenLayers.Control.LoadingPanel (it`s a addon afaik). <br>I use it because I´m having similar task of yours.<br><br>best regards<br>Sarah<br></div><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><br><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><font face="Tahoma" size="2"><hr size="1"><b><span style="font-weight: bold;">Von:</span></b> David Alda Fernandez de Lezea &lt;dalda@ikt.es&gt;<br><b><span style="font-weight: bold;">An:</span></b> Zac Spitzer &lt;zac.spitzer@gmail.com&gt;; openlayers-users@lists.osgeo.org<br><b><span style="font-weight: bold;">Gesendet:</span></b> Donnerstag, den 7. April 2011, 14:21:28 Uhr<br><b><span style="font-weight:
 bold;">Betreff:</span></b> RE: [OpenLayers-Users] Browser slow performance while parsingOpenLayers.Vector.Feature features<br></font><br>

 

<div dir="ltr" align="left"><span class="418531012-07042011"><font color="#0000ff" face="Arial" size="2">Zac,</font></span></div>
<div dir="ltr" align="left"><span class="418531012-07042011"><font color="#0000ff" face="Arial" size="2"></font></span>&nbsp;</div>
<div dir="ltr" align="left"><span class="418531012-07042011"><font color="#0000ff" face="Arial" size="2">thanks for your response. I know IE sux, but 95% of our 
customers have IE6 installed, and they are not allowed to switch to another 
version or to get other browsers.</font></span></div>
<div dir="ltr" align="left"><span class="418531012-07042011"><font color="#0000ff" face="Arial" size="2"></font></span>&nbsp;</div>
<div dir="ltr" align="left"><span class="418531012-07042011"><font color="#0000ff" face="Arial" size="2">I get the polygons from GeoServer from a wfs layer. They 
are complex polygons with lots of&nbsp;vertices (parcels from cadastre) 
and&nbsp;I can't simplify the features&nbsp;because we are on the task of online 
editing using wfs-t protocol, so&nbsp;the edition&nbsp;must be 
accurate.</font></span></div>
<div dir="ltr" align="left"><span class="418531012-07042011"><font color="#0000ff" face="Arial" size="2"></font></span>&nbsp;</div>
<div dir="ltr" align="left"><span class="418531012-07042011"><font color="#0000ff" face="Arial" size="2">I'm just wondering if there is something that I can show, 
like a progress bar or loading image, to tell the user this kind of 
operations&nbsp;will take&nbsp;a bit, but I'm afraid is going to be difficult 
because of the&nbsp;browser program.</font></span></div>
<div><font color="#0000ff" face="Arial" size="2"></font>&nbsp;</div>
<div><span class="418531012-07042011"><font color="#0000ff" face="Arial" size="2">Any 
idea?</font></span></div>
<div><span class="418531012-07042011"><font color="#0000ff" face="Arial" size="2"></font></span>&nbsp;</div>
<div><span class="418531012-07042011"><font color="#0000ff" face="Arial" size="2">Regards,</font></span></div>
<div class="Section1">
<p class="MsoNormal"><span style="font-size: 10pt; font-family: 'Frutiger 55 Roman';">Un saludo,</span></p>
<div>
<p class="MsoNormal"><span style="font-size: 7.5pt; font-family: Verdana;">&nbsp;
</span></p></div> 
<p class="MsoNormal"><span style="font-size: 10pt; font-family: 'Frutiger 55 Roman';">··················································································</span><span style="font-size: 7.5pt; font-family: Verdana;"><br></span><span style="font-size: 10pt; font-family: 'Frutiger 55 Roman';"></span></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><b><span style="font-size: 9pt;"><font face="Verdana">David Alda Fernández de 
Lezea</font></span></b></p>
<p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span style="font-size: 8pt; font-family: Verdana;">Lurralde eta Biodibertsitate Saila 
/ Dpto. de Territorio y Biodiversidad</span></p> 
<p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span style="font-size: 8pt; font-family: Verdana;"> &nbsp;</span></p> 
<p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><b style=""><span style="font-size: 8pt; font-family: Verdana;">IKT</span></b></p> 
<p class="MsoNormal" style="margin: 0cm 0cm 0pt;"><span style="font-size: 8pt; font-family: Verdana;">Granja Modelo s/n · 01192 · Arkaute 
(Araba)</span></p> 
<p class="MsoNormal"><span style="font-size: 7.5pt; font-family: Verdana;"><br>··················································································<br>Tlfnos.: 
945-00-32-95<span style="">&nbsp;</span><span style="">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span><span style="">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
</span>Fax: 
945-00.32.90<br>··················································································<br>email: 
<a rel="nofollow" ymailto="mailto:dalda@ikt.es" target="_blank" href="mailto:dalda@ikt.es">dalda@ikt.es</a>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 
web: <a rel="nofollow" target="_blank" href="http://www.ikt.es/">www.ikt.es</a><br>··················································································</span></p></div> 
<div>&nbsp;</div><br>
<div class="OutlookMessageHeader" dir="ltr" align="left" lang="es">
<hr tabindex="-1">
<font face="Tahoma" size="2"><b>De:</b> openlayers-users-bounces@lists.osgeo.org 
[mailto:openlayers-users-bounces@lists.osgeo.org] <b>En nombre de </b>Zac 
Spitzer<br><b>Enviado el:</b> jueves, 07 de abril de 2011 13:33<br><b>Para:</b> 
openlayers-users@lists.osgeo.org<br><b>Asunto:</b> Re: [OpenLayers-Users] 
Browser slow performance while parsingOpenLayers.Vector.Feature 
features<br></font><br></div>
<div></div>short answer, IE just sucks<br><br>long answer, you could switch over 
to a real mapserver engine<br><br>how dense are your polygons? generalising them 
might help a bit if they are very dense<br><br>
<div class="gmail_quote">On Thu, Apr 7, 2011 at 9:29 PM, David Alda Fernandez de 
Lezea <span dir="ltr">&lt;<a rel="nofollow" ymailto="mailto:dalda@ikt.es" target="_blank" href="mailto:dalda@ikt.es">dalda@ikt.es</a>&gt;</span> wrote:<br>
<blockquote class="gmail_quote" style="padding-left: 1ex; margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204);">Hi 
  list,<br><br>I'm having some performance issues with most browsers, but 
  specially with IE (this is the real problem).I have a vector layer in which 
  once the map is shown I load from 50 to 100 polygons and I zoom to them. I 
  know that this is a task it will consume some time, but the problem is that 
  the browser gets freezed and I would like to improve that in order to improve 
  the user experience.<br><br>I've tried this in<br><br>FF --&gt; 5-10 
  seconds<br>Safari --&gt; 5 seconds<br>Chrome --&gt; 5 seconds<br>Opera --&gt; 
  5 seconds<br>IE6 --&gt; 60 seconds<br>IE7 --&gt; 40 seconds<br>IE8 --&gt; 30 
  seconds<br><br>Is there something that I can do to improve the browser's 
  response??<br><br>Thanks.<br><br>Un 
  saludo,<br><br>··················································································<br><br>David 
  Alda Fernández de Lezea<br>Lurralde eta Biodibertsitate Saila / Dpto. de 
  Territorio y Biodiversidad<br><br>IKT<br>Granja Modelo s/n · 01192 · Arkaute 
  (Araba)<br><br>··················································································<br>Tlfnos.: 
  945-00-32-95 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
  &nbsp; &nbsp; &nbsp; Fax: 
  945-00.32.90<br>··················································································<br>email: 
  <a rel="nofollow" ymailto="mailto:dalda@ikt.es" target="_blank" href="mailto:dalda@ikt.es">dalda@ikt.es</a> &nbsp; &nbsp; &nbsp; &nbsp; 
  &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
  &nbsp;web: <a rel="nofollow" target="_blank" href="http://www.ikt.es">www.ikt.es</a><br>··················································································<br>_______________________________________________<br>Users 
  mailing list<br><a rel="nofollow" ymailto="mailto:Users@lists.osgeo.org" target="_blank" href="mailto:Users@lists.osgeo.org">Users@lists.osgeo.org</a><br><a rel="nofollow" target="_blank" href="http://lists.osgeo.org/mailman/listinfo/openlayers-users">http://lists.osgeo.org/mailman/listinfo/openlayers-users</a><br></blockquote></div><br><br clear="all"><br>-- <br>Zac Spitzer <br>Solution Architect / Director<br>Ennoble 
Consultancy Australia<br><a rel="nofollow" target="_blank" href="http://www.ennoble.com.au">http://www.ennoble.com.au</a><br><a rel="nofollow" target="_blank" href="http://zacster.blogspot.com">http://zacster.blogspot.com</a><br>+61 405 
847 168<br><br><br><br></div></div>
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