[mapguide-users] RE: Map Tiled Perfomance

[Trevor Wekel]

Hi Kencana,

As Jason mentioned, this feature will be available in MapGuide 1.2.
Both the original version 1.0.0 GETTILEIMAGE and newly implemented 2.0.0
GETTILEIMAGE are supported.  In the 1.2 stream I have already updated
the Ajax viewer scripts to use the new HTTP request.  The HTTP query
string has different parameters than the original 1.0.0 request.  Here's
and example of a url for the new request:

http://localhost/mapguide/mapagent.fcgi?OPERATION=GETTILEIMAGE&VERSION=2
.0.0&MAPDEFINITION=Library://NavteqNorthAmerica/Maps/nacolorTiled.MapDef
inition&BASEMAPLAYERGROUPNAME=Base%20Layer%20Group&TILECOL=9079&TILEROW=
7440&SCALEINDEX=1

Thanks,
Trevor

-----Original Message-----
From: Kencana [mailto:bluesky_dyx at hotmail.com] 
Sent: Saturday, February 10, 2007 9:04 AM
To: mapguide-users at lists.osgeo.org
Subject: [mapguide-users] RE: Map Tiled Perfomance


Hi Trevor,

thanks for the reply. i have read the "MapGuide RFC 11 - Stateless Http
GETTILEIMAGE request" article.
and i notice that there is a new version of get tiled map image request.
the existing one is version 1.0.0.
so in order to use the new version, can i just change the 1.0.0 to
2.0.0? or should i install any update?
i am sorry but can you explain on how to Implement version 2 of
GETTILEIMAGE?I felt a bit confused with the explanation in the article.i
am sorry but please don't mind.I hope you can help me out, as i need to
improve the performance as soon as possible.

Thank you very much

Regards,
Kencana


Trevor Wekel wrote:
> 
> Hi all,
> 
> I'm not sure what version of MapGuide everyone is using but the 
> following performance tweaks do help in the trunk code base and may 
> help with the officially released streams:
> 
> - Turn on data connection pooling and caching for all data sources 
> (including SDF and SHP) In serverconfig.ini:
> [FeatureServiceProperties]
> CacheSize = 100 (3 x the number of layers you are serving should be
> sufficient)
> DataCacheSize = 100 ( >= number of distinct feature sources you are
> serving)
> DataConnectionPoolEnabled = 1 (turn it on) 
> DataConnectionPoolExcludedProviders = none  (turn connection pooling 
> on for all feature sources) DataConnectionPoolSize = 100 ( >= number 
> of feature sources you are
> serving)
> 
> When you turn connection pooling on for file based data sources, the 
> files remain open so you may not be able to remove or overwrite them.
> This will affect APIs like ApplyResourcePackage.
>   
> In trunk, a new API has been added to MgTileService which will make 
> cache generation scripts easier to write.  Take a look at RFC 11.
> http://wiki.osgeo.org/index.php/MapGuide_RFC_11_-_Stateless_Http_GETTI
> LE
> IMAGE_request
> 
> Thanks,
> Trevor
> 
> -----Original Message-----
> From: Kori Maleski [mailto:kmale at telus.net]
> Sent: Thursday, February 08, 2007 8:46 PM
> To: 'MapGuide Users Mail List'
> Subject: RE: [mapguide-users] Map Tiled Perfomance
> 
> I resemble that remark. :-)
> 
>  
> 
> The only way to improve performance without auto-generation is to 
> manually pan around for each zoom threshold to generate the cache.
> 
>  
> 
>  
> 
> We will be releasing a utility to do the auto-generation in the next 
> month or so.  Still tweaking...
> 
>  
> 
>  
> 
>  
> 
> Kori Maleski
> 
>  
> 
>  
> 
>  
> 
>  
> 
>   _____
> 
> From: mapguide-users-bounces at lists.osgeo.org
> [mailto:mapguide-users-bounces at lists.osgeo.org] On Behalf Of Jason 
> Birch
> Sent: February 8, 2007 6:57 PM
> To: MapGuide Users Mail List
> Subject: RE: [mapguide-users] Map Tiled Perfomance
> 
>  
> 
> You have 37 layers each on its own base layer in the same map?
> 
>  
> 
> Or you have a single base layer with 37 layers in it?
> 
>  
> 
> The latter is immeasurably preferred.
> 
>  
> 
> If they are already all in a single base layer, you may want to look 
> at auto-generating the tiles.
> 
>  
> 
> Certain folks that have already done this internally would be well 
> looked upon if they released their source :)
> 
>  
> 
> Jason
> 
>  
> 
>   _____
> 
> From: Kencana
> Subject: [mapguide-users] Map Tiled Perfomance
> 
> currently i have 37 layers in the base layers. and the performance of 
> the first map tiled loading will take arround 30 seconds. any idea on 
> how to make it faster in the first map loading?
> 
> 
> _______________________________________________
> mapguide-users mailing list
> mapguide-users at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/mapguide-users
> 
> 

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