Hello, has somebody here experiences with mbtiles? I want to render WIWOSM for to things: *boring IE support *to support Wikipedia categories and collection articles in the kind of Template:GeoGroup/Vorlage:All Coordinates [1] A technical solution seems me better before the people begin to tag this in OSM. A vector solution for an article like "List of rivers of Germany" will kill each browser.
If I understand it correct in the actual mapbox-presentation[2] it's possible to save render time and server space by using redundancy.
Greetings Kolossos
[1] http://en.wikipedia.org/wiki/Template:GeoGroup [2] http://mapbox.com/blog/rendering-the-world/
But you are still looking at a ton of tilesets here! How are you planning to approach that? On-demand rendering? Or do you seriously want to pre-render for all possible categories or list articles?!
On Tue, Apr 17, 2012 at 12:13 PM, Tim Alder tim.alder@s2002.tu-chemnitz.de wrote:
Hello, has somebody here experiences with mbtiles? I want to render WIWOSM for to things: *boring IE support *to support Wikipedia categories and collection articles in the kind of Template:GeoGroup/Vorlage:All Coordinates [1] A technical solution seems me better before the people begin to tag this in OSM. A vector solution for an article like "List of rivers of Germany" will kill each browser.
If I understand it correct in the actual mapbox-presentation[2] it's possible to save render time and server space by using redundancy.
Greetings Kolossos
[1] http://en.wikipedia.org/wiki/Template:GeoGroup [2] http://mapbox.com/blog/rendering-the-world/
Maps-l mailing list Maps-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/maps-l
On the linked mapbox-presentation is a good explanation, all tiles that are equal have only one representation on the server. Mapbox seems to have found a way to stop the renderer if it's not necessary to go deeper in the zoomlevels. For a simple graphic like that of WIWOSM it should be possible to reduce the space to 1%. After the first mbtiles we will know more....
I understand that we will have >100.000 mbtiles-files on the server but this should be no problem to handle. We don't need a daily update for IE-user.
An empty 2-color png has a size of only 116 Bytes so network-traffic should be also no problem.
Rendering-on-demand sounds a good idea or we render on free resources off external computers.
MBtiles sounds also interessting for Wikipedia-maps-workshop (German:"Wikipedia:Kartenwerkstatt") so it would be generally nice to handle it.
Greetings Kolossos
Am 17.04.2012 20:36, schrieb Daniel Schwen:
But you are still looking at a ton of tilesets here! How are you planning to approach that? On-demand rendering? Or do you seriously want to pre-render for all possible categories or list articles?!
On Tue, Apr 17, 2012 at 12:13 PM, Tim Alder tim.alder@s2002.tu-chemnitz.de wrote:
Hello, has somebody here experiences with mbtiles? I want to render WIWOSM for to things: *boring IE support *to support Wikipedia categories and collection articles in the kind of Template:GeoGroup/Vorlage:All Coordinates [1] A technical solution seems me better before the people begin to tag this in OSM. A vector solution for an article like "List of rivers of Germany" will kill each browser.
If I understand it correct in the actual mapbox-presentation[2] it's possible to save render time and server space by using redundancy.
Greetings Kolossos
[1] http://en.wikipedia.org/wiki/Template:GeoGroup [2] http://mapbox.com/blog/rendering-the-world/
Maps-l mailing list Maps-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/maps-l
Maps-l mailing list Maps-l@lists.wikimedia.org https://lists.wikimedia.org/mailman/listinfo/maps-l
An empty 2-color png has a size of only 116 Bytes so network-traffic should be also no problem.
Once you are below TCP packetsize it doesn't really matter.
Keep in mind that you will have to use a PNG transparency hack to IE users (also I'd go for a bit more than 2color PNG, since that will look crappy).
Rendering-on-demand sounds a good idea or we render on free resources off external computers.
Should be totally doable, I'm rendering all high zoomlevels in WMA on demand (with caching) and the WIOSM layers would be geometrically very simple.