[OpenLayers-Users] How to display a lot of tiles fast?

[Steve Way]

How about limiting the scale that the images are displayed at?

Seems that you are using large scale mapping at a small scale which will kill any server.

If you require it at smaller scales you could utilise geowebcache .

-----Original Message-----
From: openlayers-users-bounces at lists.osgeo.org [mailto:openlayers-users-bounces at lists.osgeo.org] On Behalf Of RobSmart
Sent: 09 July 2012 22:13
To: openlayers-users at lists.osgeo.org
Subject: [OpenLayers-Users] How to display a lot of tiles fast?

Hi All,

I have a large amount (thousands) of tiles that are divided up into about 43 folders (based on UK OS tiles). Each folder contains around 8 - 15 thousand images (small aerial photo tiles).

I want to display these as a single basemap in openlayers, so what I have done so far is to add each folder to geoserver as imageMosaic layer. I've then created a single GroupLayer in Geoserver that contains all the mosaicLayers.

The individual MosaicLayers work OK (a bit slow but useable), but the GroupLayer does not work at all. It just takes so long to render that it timesout.

Is there an easier/better way to do this? Would merging the data into a single large folder work? Is there a plugin that would allow this to work better? Any other optimisation? Is there a way to create a a single base layer radio button that could actually control the individual layers through code?

Any help or ideas would be greatly appreciated.

Thanks,

Rob Smart

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