I know, I know... I was just wondering how I could make it less problematic for the user.
Thanks anyway. Reegards, 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: [email protected] web: www.ikt.es <http://www.ikt.es/> ·················································································· ________________________________ De: [email protected] [mailto:[email protected]] En nombre de Slawomir Messner Enviado el: jueves, 07 de abril de 2011 15:13 CC: [email protected] Asunto: Re: [OpenLayers-Users] Browser slow performancewhile parsingOpenLayers.Vector.Feature features Hi, it's impossible that a pedal car is nearly as fast as a f1 car and take as much as a truck. My opinion is that either you force your customer to use safe and fast browsers or you have to reduce the load by minimum of polygons drawn or switch to a desktop prog like QuantumGIS. Minimize the number of geometries by a strategy, if you want to edit them then cluster is not an alternative. If you pass attributes with your features then you can leave them out and load them later, if you need them. I don't know if it helps and this is not a standardized solution, if you minimize your data to the less verbose format, I think it's WKT or a custom json, and write your own update Serversidewhatever. Simply a simple format to parse for the browser with minimum of memory consumption. But I think, it will be much work for at best little more performance. We must also always say our users to switch to a new browser if they want to have the functionality and speed("Sry, there is a minimum requirement. It's free, ask/force your admin to install it."). In the end there is no workaround you can only cut things out. You never will have a performance like chrome or ff out of a bad engine. Think about how much seconds you spend to get a second less for users. I know there is no solution for your performance problem but maybe an argument for your customers. Best regards Slawomir Am 07.04.2011 14:21, schrieb 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, ·················································································· 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: [email protected] web: www.ikt.es <http://www.ikt.es/> ·················································································· ________________________________ De: [email protected] [mailto:[email protected]] En nombre de Zac Spitzer Enviado el: jueves, 07 de abril de 2011 13:33 Para: [email protected] 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 <[email protected]> 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: [email protected] web: www.ikt.es ·················································································· _______________________________________________ Users mailing list [email protected] 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 _______________________________________________ Users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/openlayers-users
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