Hi Jin, Does the generate_tiles.py script visibly stop at some point? Is there any error visible in the terminal?
My guess is that you running into a known windows+mapnik+postgtres problem. Basically that mapnik looses a proper database connection during tile generation a high zoom levels because rendering is fast and there is a higher likelyhood of postgres connections being clobbered. This has been known to happen on windows when using generate_tiles with threads >= 1 (http://trac.mapnik.org/ticket/581#comment:6). I see below that you are testing using the multiprocess script, but I would not be surprised if it is the same problem manifesting. Can you try with either 1 thread or 1 process? To narrow this down it would be good to know if you can render *any* tile at >= z16. One easy way to check with would be to install TileLite (http://bitbucket.org/springmeyer/tilelite/), then launch a server on localhost:8000 and try to view a z18 tile, like http://tile.openstreetmap.org/18/232909/103242.png at http://localhost:8000/18/232909/103242.png. One last thing to do is rebuilt your shape indexes: # on windows cd world_boundaries shapeindex processed_p shapeindex shoreline_300 shapeindex 10m-populated-places shapeindex 110m-admin-0-boundary-lines Dane On Nov 21, 2010, at 7:42 PM, Jin Kang wrote: > Hi everyone, > > My engineer is trying to do rendering up to level 16 but we kind of stuck > right now. We are pretty new in this application so if any of you could help > us on this, it would be great help to us. Please refer to below for more > detail info. > > ------------------------------------------------------------------------- > We would like to do rendering OSM up to zoom level 16 using mapnik. Right > now, we are just focusing on Japanese map only which you can find at > http://www.openstreetmap.jp/. > > We also referred to following link but didn't get the expected result so far. > http://wiki.openstreetmap.org/wiki/Mapnik > http://wiki.openstreetmap.org/wiki/DE:Mapnik > > The problem is that we can only render up to zoom level 10, not 16 and at > zoom level 11, we basically cannot see anything. Even at zoom level 10, we > cannot see any data such as street name, country name or anything. > > Regarding OSM, we imported from following link. > http://downloads.cloudmade.com/asia/japan#downloads_breadcrumbs > ＊japan.osm.bz2 > ＊japan.osm.coastline.bz2 > ＊japan.osm.highway.bz2 > > We followed following steps: > 1. Install PostgreSQL8.4.5/PostGIS1.5, Python2.6.6, mapnik0.7.1 > > 2. Create database > $ createdb -U postgres -E UTF8 -O mapnik gis > > 3. Run sql > $ psql -U postgres -d gis -f "C:\Program > Files\PostgreSQL\8.4\share\contrib\postgis-1.5\postgis.sql" > $ psql -U postgres -d gis -f "C:\Program > Files\PostgreSQL\8.4\share\contrib\postgis-1.5\spatial_ref_sys.sql" > $ psql -U postgres -d gis -f "C:\Program > Files\PostgreSQL\8.4\share\contrib\_int.sql" > $ psql -U postgres -d gis -f "C:\Program > Files\PostgreSQL\8.4\share\contrib\hstore.sql" > > 4. Run osm2pgsql > $ osm2pgsql -c -s -d gis -U postgres -S default.style japan.osm.bz2 > $ osm2pgsql -c -s -d gis -U postgres -S default.style japan.osm.highway.bz2 > $ osm2pgsql -c -s -d gis -U postgres -S default.style > japan.osm.coastline.bz2 > $ osm2pgsql -c -s -d gis -U postgres -S default.style > japan.osm.administrative.bz2 > > 5. world_boundaries(in mac) > $ tar xzf world_boundaries-spherical.tgz > $ tar xjf processed_p.tar.bz2 -C world_boundaries > $ tar xjf shoreline_300.tar.bz2 -C world_boundaries > $ unzip 10m-populated-places.zip -d world_boundaries > $ unzip 110m-admin-0-boundary-lines.zip -d world_boundaries > > 6. Check out mapnik repository > URL: http://svn.openstreetmap.org/applications/rendering/mapnik > > 7. Create mapnik setup file > $ generate_xml.py osm.xml out.xml --host localhost --user postgres > --dbname gis --symbols ./symbols/ --world_boundaries ./world_boundaries/ > --port 5432 --password '' > > 8. Using generate_tiles_multiprocess.py, do rendering > $ set HOME=C:\mapnik-0.7.1\svn\ > $ set MAPNIK_MAP_FILE=C:\mapnik-0.7.1\svn\out.xml > $ set MAPNIK_TILE_DIR=C:\mapnik-0.7.1\svn\tiles\ > $ generate_tiles_multiprocess.py > > The portion we changed to for Japanese map > # zoom level=16- describe Japan > bbox = (112.5,22.0,157.5,55.7) > render_tiles(bbox, mapfile, tile_dir, 16, 16 , "Japan") > # zoom level=10- describe Japan > bbox = (112.5,22.0,157.5,55.7) > render_tiles(bbox, mapfile, tile_dir, 10, 10 , "Japan") > > Hardware spec: > PC Spec > CPU：Core2 6700 2.66G > RAM：3G > Hard Disk：256G > OS：Windows XP SP3 > _______________________________________________ > Mapnik-users mailing list > [email protected] > https://lists.berlios.de/mailman/listinfo/mapnik-users
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