[OpenLayers-Users] Browser slow performance while parsingOpenLayers.Vector.Feature features

[David Alda Fernandez de Lezea]

Zac,
 
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.
 
I get the polygons from GeoServer from a wfs layer. They are complex polygons with lots of vertices (parcels from cadastre) and I can't simplify the features because we are on the task of online editing using wfs-t protocol, so the edition must be accurate.
 
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 will take a bit, but I'm afraid is going to be difficult because of the browser program.
 
Any idea?
 
Regards,

Un saludo,

 

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David Alda Fernández de Lezea

Lurralde eta Biodibertsitate Saila / Dpto. de Territorio y Biodiversidad

 

IKT

Granja Modelo s/n · 01192 · Arkaute (Araba)


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Tlfnos.: 945-00-32-95                         Fax: 945-00.32.90
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email: dalda at ikt.es                                web: www.ikt.es <http://www.ikt.es/> 
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________________________________

De: openlayers-users-bounces at lists.osgeo.org [mailto:openlayers-users-bounces at lists.osgeo.org] En nombre de Zac Spitzer
Enviado el: jueves, 07 de abril de 2011 13:33
Para: openlayers-users at lists.osgeo.org
Asunto: Re: [OpenLayers-Users] Browser slow performance while parsingOpenLayers.Vector.Feature features


short answer, IE just sucks

long answer, you could switch over to a real mapserver engine

how dense are your polygons? generalising them might help a bit if they are very dense


On Thu, Apr 7, 2011 at 9:29 PM, David Alda Fernandez de Lezea <dalda at ikt.es> wrote:


	Hi list,
	
	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.
	
	I've tried this in
	
	FF --> 5-10 seconds
	Safari --> 5 seconds
	Chrome --> 5 seconds
	Opera --> 5 seconds
	IE6 --> 60 seconds
	IE7 --> 40 seconds
	IE8 --> 30 seconds
	
	Is there something that I can do to improve the browser's response??
	
	Thanks.
	
	Un saludo,
	
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	David Alda Fernández de Lezea
	Lurralde eta Biodibertsitate Saila / Dpto. de Territorio y Biodiversidad
	
	IKT
	Granja Modelo s/n · 01192 · Arkaute (Araba)
	
	··················································································
	Tlfnos.: 945-00-32-95                         Fax: 945-00.32.90
	··················································································
	email: dalda at ikt.es                                web: www.ikt.es
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-- 
Zac Spitzer 
Solution Architect / Director
Ennoble Consultancy Australia
http://www.ennoble.com.au
http://zacster.blogspot.com
+61 405 847 168




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