[OpenLayers-Users] Performance of own (vector) data in Open Layers

[Mika Lehtonen]

Hi Kai,

in that case, I could recommend you to setup a Geoserver and serve your 
data through WMS , especially if the data amount is "vast" and quite 
static. Of course this is just a one idea and may be a little overkill 
depending on your data and demand. Maybe you could simply just use 
vector layer and create a little script on server side which will fetch 
the data from database and sends it into OpenLayers.

Perhaps, we will come up with more concrete ideas after you have also 
brougth about something more concrete.

Happy testing,
- mika -

Kai Behncke kirjoitti:
> Dear Mika,
>
> well "my server " is a normal root server in the Internet.
> "My data" in that case are Vector-Point-Data, I have them in a PostGIS-Database or can have them as a "typical" shape-file.
> I`m quite new to Open Layers and definetely quite impressed.
>
> I wonder in general now which way might be the most performant way to show "own" geodata (in Combination with the google-api-layer,osm-api-ayer,virtual earth-api-layer) to the public in Open Layers.
>
> But, well, I will test beside from that question also how to improve the speed of the WFS, I`m pretty sure there will be some possibilities (indizes and so on).
>
> Best regards, Kai
>
>
>
> -------- Original-Nachricht --------
>   
>> Datum: Thu, 05 Feb 2009 13:02:11 +0200
>> Von: Mika Lehtonen <mika at digikartta.net>
>> An: Kai Behncke <Kai-Behncke at gmx.de>
>> CC: users at openlayers.org
>> Betreff: Re: [OpenLayers-Users] Performance of own (vector) data in	Open	Layers
>>     
>
>   
>> Hi Kai,
>>
>> you haven't been telling us why you want to load your data as an 
>> OL-layer, what's the format of your data and what is "my server". 
>> Rendering vector in browser is definetely slow, especially in IE. If you 
>> just want to publish it, or an image of it, WMS is probably the best 
>> option. But then you have to have a WMS-server (Mapserver, Geoserver 
>> etc.). Please, tell us more.
>>
>> - mika -
>>
>> Kai Behncke kirjoitti:
>>     
>>> Dear Lars,
>>>
>>> thank you for answering.
>>> With own data I just mean data that lie on my server, it would be nice
>>>       
>> to implement them "directly" for example as a shape, but I think this is not
>> possible, so as far I can see WFS should be the easiest way (??).
>>     
>>> Well, in the moment I have 500 Features via WFS, it takes sometimes more
>>>       
>> than 2 seconds, what is far to much I think. I will do some checks to find
>> out the bottleneck.
>>     
>>> Best regards, Kai
>>>
>>> -------- Original-Nachricht --------
>>>   
>>>       
>>>> Datum: Thu, 05 Feb 2009 09:22:38 +0100
>>>> Von: Lars Lingner <ml at lingner.eu>
>>>> An: users at openlayers.org
>>>> Betreff: Re: [OpenLayers-Users] Performance of own (vector) data in
>>>>         
>> Open	Layers
>>     
>>>>     
>>>>         
>>>   
>>>       
>>>> Kai Behncke schrieb:
>>>>     
>>>>         
>>>>> Dear users, 
>>>>> I would like to know with which layer types you made best experiences
>>>>>           
>> if
>>     
>>>>>       
>>>>>           
>>>> you want to load in own data as a layer.
>>>>     
>>>>         
>>>>> So far I checked out wms and wfs, but wfs for example took quite a
>>>>>           
>> long
>>     
>>>>>       
>>>>>           
>>>> time
>>>>     
>>>>         
>>>>> (ok, no indexes are set so far in the database....) and one can really
>>>>>       
>>>>>           
>>>> see: Google appears quite fast and after the little while the WFS with
>>>>         
>> the
>>     
>>>> own data appears (and it has just 500 entries).
>>>>     
>>>>         
>>>>> In which way in OpenLayers do you implement your own vector-data?
>>>>>
>>>>>       
>>>>>           
>>>> I'm not sure if I understand your problem or what you mean with own
>>>> vector-data?
>>>>
>>>> I would say that the type of layer depends on the output type of your
>>>> server.
>>>> I was using OL with WMS and WFS layer. If there are many (== few
>>>> hundreds) vector features OL can get slow. But if you want to find the
>>>> bottleneck you should distinguish between processing time at server
>>>> side, transfer time and time OL actually needs to process the data.
>>>>
>>>> Sorry, no solution, just my experience...
>>>>
>>>> With how many features are you working and how long in seconds does it
>>>> need?
>>>>
>>>>
>>>> lars
>>>> _______________________________________________
>>>> Users mailing list
>>>> Users at openlayers.org
>>>> http://openlayers.org/mailman/listinfo/users
>>>>     
>>>>         
>>>   
>>>       
>
>