[OpenLayers-Dev] GeoWebCache layer

[Tim Schaub]

On 11/23/10 12:40 AM, Bart van den Eijnden (OSGIS) wrote:
> See also:
>
> http://dev.openlayers.org/sandbox/tschaub/gwc/lib/OpenLayers/Layer/GeoWebCache.js
>

Yeah, sorry for not making this more public before.  This has been in 
production use for a good while now.  I'll bundle it up as a patch.

Tim

> Best regards,
> Bart
>
>> Iván, this looks pretty cool. Is there any reason not to rename the layer
>> to OpenLayers.Layer.GeoWebCache? I'd recommend doing so, and then filing a
>> ticket in Trac for inclusion in OpenLayers.
>>
>> SDE
>>
>> On Nov 22, 2010, at 2:39 PM, Iván Sánchez Ortega wrote:
>>
>>> Hi all,
>>>
>>> I'm working in a project that involves running GeoServer+GeoWebCache to
>>> generate a whole bunch of tiles, then copying all the unmodified cached
>>> tiles
>>> to a frontend., then put openlayers on top.
>>>
>>> The trick is that GWC's way of naming cached tiles looks like this:
>>>
>>> EPSG_$projection_$namespace_$layer_08/05_04/0161_0146.png
>>>
>>> Here, 08 is z, 0161 is x, and 0146 is y. But the zero-padding and that
>>> mid-level directory prevents us from using XYZ or TMS.
>>>
>>>
>>> Worry no more! The brand-new GWC layer allows to load a mirrored copy of
>>> GWC's
>>> tile cache with no hassle, even accounting for GWC's bugs! Looky here:
>>> http://ivan.sanchezortega.es/GWC.js
>>>
>>>
>>> Usage is pretty straightforward:
>>>
>>> 	var gwc = new OpenLayers.Layer.GWC({});
>>>
>>> 	gwc.url = "path_to_cache_dir/EPSG_12345_namespace_layer_";
>>> 	gwc.type = 'png';
>>> 	gwc.name = "foobar"
>>>
>>> 	map.addLayer(gwc);
>>>
>>> Best,
>>> --
>>> ----------------------------------
>>> Iván Sánchez Ortega<ivan at sanchezortega.es>  <ivan at geonerd.org>
>>>
>>> http://ivan.sanchezortega.es
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-- 
Tim Schaub
OpenGeo - http://opengeo.org
Expert service straight from the developers.