[Tilecache] TileCache tile storage questions

[Xiaoyuguan]

> 2. You can save your HDD by changing python code to storage only tiles which have data.

Good idea. What will happen, if user do request to an extent which is no data or sea? Will tilecache show pink tiles?

Grt

Xiaoyu



Op 18 jan. 2012 om 03:25 heeft Nguyễn Hoàng Nam <hoangnamhumg at gmail.com> het volgende geschreven:

> 2. You can save your HDD by changing python code to storage only tiles which have data.
> 
> On Wed, Jan 18, 2012 at 3:46 AM, Xiaoyuguan <guanxiaoyu at gmail.com> wrote:
> Thanks for quick reply. It would be nice that someone can update the doc. And who can answer the following question. Otherwise, I have to dig into tilecache source code ...
> 
> 
>> " I don't know if TileCache follows the same strategy as MapProxy regarding tiles with the same RGB (i.e. lake areas) as it reuses tiles permitting huge disk space savings."
> 
> 
> 
> Grt
> 
> 
> Xiaoyu
> 
> 
> Op 17 jan. 2012 om 11:12 heeft Pedro Mendes <p.m.g.mendes at gmail.com> het volgende geschreven:
> 
>> I read tilesize doc v2.1. In the doc, it says tilecache support mbtiles and amazon cloud storage.
>> 
>> You're right. Sorry, my bad. A cache persistent in MBTiles will not scale as well as other options. Theoretically, a sqlite db could be terabyte-sized (http://www.sqlite.org/features.html) but keep in mind that the access to the tiles would degraded just after a few gigabytes. I don't know if TileCache follows the same strategy as MapProxy regarding tiles with the same RGB (i.e. lake areas) as it reuses tiles permitting huge disk space savings.
> 
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