Re: [OSM-dev] How to delete metatiles?
Dne neděle 16 Leden 2011 03:25:27 Frederik Ramm napsal(a): Ideally of course there would be a library that does all the metatile stuff (computing paths and so on) used by everyone, but that's maybe too hard because it would have to be usable from so many different places. +1 -- Ing. Radek Bartoň Faculty of Information Technology Department of Computer Graphics and Multimedia Brno University of Technology E-mail: black...@post.cz Web: http://blackhex.no-ip.org Jabber: black...@jabber.cz ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
Re: [OSM-dev] How to delete metatiles?
On 16.01.2011 20:11, Jon Burgess wrote: Does anyone use the existing scheme with max_zoom 18? If not the changes could only effect higher zooms, perhaps as a compatibility mode. I do with zoom 19. And until a few minutes ago I felt fine doing it. Now I feel confused. Stephan ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
Re: [OSM-dev] How to delete metatiles?
On Sun, 16 Jan 2011 20:25:55 +0100, Stephan Knauss wrote: On 16.01.2011 20:11, Jon Burgess wrote: Does anyone use the existing scheme with max_zoom 18? If not the changes could only effect higher zooms, perhaps as a compatibility mode. I do with zoom 19. And until a few minutes ago I felt fine doing it. Now I feel confused. ...and I'm having small dumps rendered at z21: http://map.hanskalabs.net/ol.html However, render_expired just segfaults when passed a list with tiles z18. -- . ''`. Debian developer | http://wiki.debian.org/DavidPaleino : :' : Linuxer #334216 --|-- http://www.hanskalabs.net/ `. `'` GPG: 1392B174 | http://deb.li/dapal `- 2BAB C625 4E66 E7B8 450A C3E1 E6AA 9017 1392 B174 signature.asc Description: PGP signature ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
Re: [OSM-dev] How to delete metatiles?
Hi, Stephan Knauss wrote: On 16.01.2011 20:11, Jon Burgess wrote: Does anyone use the existing scheme with max_zoom 18? If not the changes could only effect higher zooms, perhaps as a compatibility mode. I do with zoom 19. And until a few minutes ago I felt fine doing it. Now I feel confused. The existing scheme *can* be used up to zoom 20, but that's how far it goes (because we only have 5 * 4 = 20 bits of coordinate space available for x and y). If we wanted to introduce a new scheme that went past this limit, e.g. by adding an extra hierarchy level, then this would most likely not be backwards compatible; i.e. if Jon wanted to support the new scheme on tile.osm.org he'd probably have to move huge numbers of tiles to their new directories. So one could think of a hack where for tiles up to zoom level x the current scheme was used, and for everything higher than x the new scheme would come into play. Had it turned out that nobody uses zoom levels 18, then it would havew been easy to define x=18, and implement a new scheme that comes into play for tiles on zoom levels 19+. Bye Frederik -- Frederik Ramm ## eMail frede...@remote.org ## N49°00'09 E008°23'33 ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
Re: [OSM-dev] How to delete metatiles?
On 16.01.2011 22:40, Frederik Ramm wrote: Had it turned out that nobody uses zoom levels 18, then it would havew been easy to define x=18, and implement a new scheme that comes into play for tiles on zoom levels 19+. I wouldn't mind to throw away my existing Z19 tiles. It's not that many places that get viewed with z19. They will quickly re-render when viewed. So in case you would like to improve it, go on. My server should not stop you doing so. Stephan ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
[OSM-dev] How to delete metatiles?
What is the best way to delete metatiles in a given bounding box and zoom? I'm using mod_tile and tirex. In case it's not existing: Should it be added to tirex-batch? I like the filers and stuff tirex-batch already have. Even when I not need it, it could prove usefull for others. Stephan ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
Re: [OSM-dev] How to delete metatiles?
Hi, Stephan Knauss wrote: What is the best way to delete metatiles in a given bounding box and zoom? I'm using mod_tile and tirex. In case it's not existing: Should it be added to tirex-batch? I like the filers and stuff tirex-batch already have. Even when I not need it, it could prove usefull for others. Maybe we should start some sort of general metatile utility, or collection of utilities. Tirex already has at least one such thing, a metatile viewer, that has nothing to do with Tirex itself - it is useful for everyone working with metatiles, as would your tool. The way I see it, the concept of metatiles is a general concept used by (currently) at least three different components - mod_tile, renderd, and Tirex. Ideally of course there would be a library that does all the metatile stuff (computing paths and so on) used by everyone, but that's maybe too hard because it would have to be usable from so many different places. I would be interested to hear Jon's opinion about this. Bye Frederik -- Frederik Ramm ## eMail frede...@remote.org ## N49°00'09 E008°23'33 ___ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
