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

[Sarah Schuessler]

Hi David,

if you want to use a loading image you can use OpenLayers.Control.LoadingPanel 
(it`s a addon afaik). 

I use it because I´m having similar task of yours.

best regards
Sarah




________________________________
Von: David Alda Fernandez de Lezea <dalda at ikt.es>
An: Zac Spitzer <zac.spitzer at gmail.com>; openlayers-users at lists.osgeo.org
Gesendet: Donnerstag, den 7. April 2011, 14:21:28 Uhr
Betreff: RE: [OpenLayers-Users] Browser slow performance while 
parsingOpenLayers.Vector.Feature features


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,
  
··················································································


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
··················································································

 


________________________________
 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,
>
>··················································································
>
>
>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
>··················································································
>
>_______________________________________________
>Users    mailing list
>Users at lists.osgeo.org
>http://lists.osgeo.org/mailman/listinfo/openlayers-users
>


-- 
Zac Spitzer 
Solution Architect / Director
Ennoble  Consultancy Australia
http://www.ennoble.com.au
http://zacster.blogspot.com
+61 405  847 168
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.osgeo.org/pipermail/openlayers-users/attachments/20110407/d72b0000/attachment.html