On Wed, Sep 24, 2008 at 11:24 AM, Joseph Gentle <[EMAIL PROTECTED]> wrote: > On Thu, Sep 25, 2008 at 2:04 AM, Lukasz Szybalski <[EMAIL PROTECTED]> wrote: >> On Wed, Sep 24, 2008 at 10:20 AM, Joseph Gentle <[EMAIL PROTECTED]> wrote: >> I'm new to the project so if you could give me some shortucts: >> >> ok...the whole planet is >> bbox= (-180, -87.5, 180, 87.5) >> >> If I look at the file: >> http://svn.openstreetmap.org/applications/rendering/mapnik/generate_tiles.py >> It has few boundaries in it: >> # Start with an overview >> # World >> bbox = (-180.0,-90.0, 180.0,90.0) >> render_tiles(bbox, mapfile, tile_dir, 0, 5, "World") >> >> This means it will render planet from 0-5? >> then it will render what ever else follows? >> >> What is: >> bbox = (151.0, -34, 151.33, -33.66) > > Part of Sydney, Australia. > > http://www.maptools.com/UsingLatLon/LatLon.html > >> So min=0 and max=17 should be sufficient? > > Sufficient for what? This is the detail of zoom level 0: > http://a.tile.openstreetmap.org/0/0/0.png > zoom level 5: > http://a.tile.openstreetmap.org/5/8/14.png (thats central america) > and zoom level 17: > http://a.tile.openstreetmap.org/17/120597/78678.png (thats some > streets in Sydney) > >> If you guys could add a bbox for each continent that would be great. >> (You could probobly comment it out if you don't want it by default) >> but it would be nice to just uncomment it and get it going. >> >> >> What would be a bbox for: >> ... > > http://www.google.com.au/search?q=longitude+latitude+of+countries > >> What would be estimated size for min0 max 17? >> ... > > The whole world from 0 - 17 is about 20 billion tiles. If you chop out > the oceans, the arctic and antarctica you might have ~5 billion tiles > to render. Zoom google maps all the way out and look at proportional > sizes of the countries on that map for relative sizes. > > If you don't use appropriate storage for the tiles, each tile will > take up at least 4KB. Unless you're clever 5 billion tiles will take > at least 20TB to store.
ok That is a little too much considering I can buy 500gb drive for $70, so storage is max 500, now 50gb I can spare. What would be a bbox for: http://maps.google.com/?ie=UTF8&ll=37.0625,-95.677068&spn=36.231745,92.109375&t=h&z=4 bbox=(37.0625,-95,36.23,92.10) Is google zoom reasonably close or same as in mapnik? From google it would seem zoom max 15 should be enough for what I need. Thanks, Lucas _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk
