[Tilecache] TileCache - serving as untiled wms

Travis Kirstine traviskirstine at gmail.com
Thu Feb 25 15:28:57 EST 2010


I believe it requires GDAL 1.7,

On 25 February 2010 13:25, Duarte Carreira <DCarreira at edia.pt> wrote:
> Oh, ok. I have tried this but gave up. I couldn't get the TC resolutions configured in GDAL... too confusing for me.
>
> Duarte
>
> -----Mensagem original-----
> De: Christopher Schmidt [mailto:crschmidt at metacarta.com]
> Enviada: quinta-feira, 25 de Fevereiro de 2010 18:29
> Para: Duarte Carreira
> Cc: tilecache at openlayers.org
> Assunto: Re: [Tilecache] TileCache - serving as untiled wms
>
> On Thu, Feb 25, 2010 at 05:42:01PM +0000, Duarte Carreira wrote:
>> Hi Christopher.
>>
>> Can you elaborate on combining TC + MapServer + GDAL to achieve this effect?
>
> Use http://gdal.org/frmt_wms.html as a RASTER datasource in MS.
>
> -- Chris
>
>> Thanks,
>> Duarte
>>
>> -----Mensagem original-----
>> De: Christopher Schmidt [mailto:crschmidt at metacarta.com]
>> Enviada: quinta-feira, 25 de Fevereiro de 2010 17:43
>> Para: Duarte Carreira
>> Cc: tilecache at openlayers.org
>> Assunto: Re: [Tilecache] TileCache - serving as untiled wms
>>
>> On Thu, Feb 25, 2010 at 05:34:36PM +0000, Duarte Carreira wrote:
>> > Hello all.
>> >
>> > I have been wondering about how use WMS-C or other tiled WMS services with apps that support only WMS (untiled).
>>
>> I've considered this multiple times. In the past, I've combined TIleCache
>> and MapServer/GDAL to do that, but adding the support to TileCache
>> wouldn't be unreasonable. I would recommend some kind of flag
>> to make sure that people don't accidentally hit the untiled stuff
>> without being aware of it.
>>
>> -- Chris
>>
>> > How fast would it be to merge tiles and cut-out the resulting image to answer a standard untiled bbox request?
>> >
>> > The idea is that servers running TileCache would be able to also serve WMS clients. What's the benefit? Why not use the original WMS server? I'm guessing it would be faster and with lighter loads, even though TileCache would have to crunch several tiles together and clip the resulting image...
>> > But there would be problems with resolution... since WMS clients don't care about fixed scales/resolutions. So you would serve ugly looking imagens in-between tile resolutions...
>> >
>> > Any thoughts?
>> >
>> > Duarte
>>
>> > _______________________________________________
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>> > Tilecache at openlayers.org
>> > http://openlayers.org/mailman/listinfo/tilecache
>>
>>
>> --
>> Christopher Schmidt
>> MetaCarta
>
> --
> Christopher Schmidt
> MetaCarta
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>



-- 
Travis K.

Toronto, Canada
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"She knows there's no success like failure
and that failure's no success at all."
-Bob Dylan-
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