Au programme : http://thomas.enix.org/Hackfest2009

• Paquet installé pour PostGIS : postgresql-8.3-postgis. Cela installe le serveur et le client PostgreSQL, ainsi que l'extension Postgis. À noter que le paquet postgis installe seulement quelques outils liés à PostGIS, pas PostGIS lui-même.
• Paquet installé pour une interface graphique d'administration de PostgreSQL: pgadmin3
• Configuration du mot de passe de l'utilisateur postgres du serveur de base de données (pas l'utilisateur Unix !), voir https://help.ubuntu.com/community/PostgreSQL#Basic%20Server%20Setup
• Chargement de france.osm dans le pgsql de Thomas avec osm2pgsql (svn rel 17214) : osm2pgsql -c -d testdb -m -U test -H surf.local Desktop/france.osm.bz2

• SRID & co : http://cfis.savagexi.com/2006/05/03/google-maps-deconstructed
  • Description : http://www.sharpgis.net/post/2007/05/Spatial-references2c-coordinate-systems2c-projections2c-datums2c-ellipsoids-e28093-confusing.aspx
  • SRID 900913 (« google » en chiffres, osm, …) : http://spatialreference.org/ref/sr-org/6627/
  • SRID 3785 : http://www.sharpgis.net/post/2008/05/SphericalWeb-Mercator-EPSG-code-3785.aspx
• API Postgis : http://postgis.refractions.net/documentation/manual-1.4/ch07.html
• Stats des communes dans OSM : http://www.mail-archive.com/talk-fr@openstreetmap.org/msg12151.html

• dump de la base : http://download.geofabrik.de/osm/ et en particulier http://download.geofabrik.de/osm/europe/france.osm.bz2

• Télécharger les fichiers nécessaires, http://archive.ubuntu.com/ubuntu/dists/jaunty/main/installer-amd64/current/images/netboot/netboot.tar.gz
• Extraire l'archive
• Installer le serveur PXE de Maxime (il inclut tout le nécessaire, serveur DHCP et TFTP, etc.).

• docs :
  • http://trac.mapnik.org/wiki/InstallGuide
  • http://trac.mapnik.org/wiki/UbuntuInstallation
  • http://wiki.openstreetmap.org/wiki/Mapnik

• compilation

$ cd mapnik-0.6.1/
$ python scons/scons.py configure INPUT_PLUGINS=all \
  OPTIMIZATION=3 PREFIX=/usr/local/stow/mapnik-0.6.1 \
  PYTHON_PREFIX=/usr/local/stow/mapnik-0.6.1/ \
  SYSTEM_FONTS=/usr/share/fonts/truetype/ttf-dejavu/
$ python scons/scons.py

$ export PYTHONPATH="/home/thomas/sys/lib/python2.6/site-packages"
$ export PYTHONPATH="/home/thomas/sys/lib/python2.6/site-packages"
$ python
Python 2.6.2 (release26-maint, Apr 19 2009, 01:56:41) 
[GCC 4.3.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import mapnik
>>> 

$ svn checkout http://svn.openstreetmap.org/applications/rendering/mapnik mapnik-osm
$ cd mapnik-osm/

$ diff -u ./set-mapnik-env.orig  ./set-mapnik-env
--- ./set-mapnik-env.orig	2009-08-23 18:39:24.000000000 +0200
+++ ./set-mapnik-env	2009-08-23 18:43:28.000000000 +0200
@@ -30,26 +30,26 @@
 
 # This is the name of the *local* version of the Mapnik map file after it has
 # been run through the cutomize-mapnik-map script.
-export MAPNIK_MAP_FILE=~/mapnik/osm.xml
+export MAPNIK_MAP_FILE=~/osm/mapnik-osm/osm.xml
 
 # This is the directory where the icons and symbols for Mapnik are. If
 # you have checked out the OSM subversion directory into a directory
 # called ~/svn.openstreetmap.org, the symbols will be in
 # ~/svn.openstreetmap.org/applications/rendering/mapnik/symbols
-export MAPNIK_SYMBOLS_DIR=~/mapnik/symbols
+export MAPNIK_SYMBOLS_DIR=~/osm/mapnik-osm/symbols
 
 # This is the directory where you upacked the world_boundaries.tar.bz2
 # file you got from
 # http://artem.dev.openstreetmap.org/files/world_boundaries.tar.bz2
-export MAPNIK_WORLD_BOUNDARIES_DIR=~/mapnik/world_boundaries
+export MAPNIK_WORLD_BOUNDARIES_DIR=~/osm/mapnik-osm/world_boundaries
 
 # Directory where the created map tiles should be stored. Must end with
 # a slash (/)
-export MAPNIK_TILE_DIR=~/mapnik/tiles/
+export MAPNIK_TILE_DIR=~/osm/mapnik-osm/tiles/
 
 # This is the name of the server running the PostgreSQL database. Leave
 # this empty if your database is on the local machine.
-export MAPNIK_DBHOST=""
+export MAPNIK_DBHOST="localhost"
 
 # This is the TCP port where the PostgreSQL server is listening. The
 # default port for PostgreSQL is 5432. Leave this empty if your database
@@ -57,13 +57,13 @@
 export MAPNIK_DBPORT=""
 
 # This is the name of the database where the OSM data is stored.
-export MAPNIK_DBNAME='osm'
+export MAPNIK_DBNAME='testdb'
 
 # This is the username we should use to log into the PostgreSQL database.
-export MAPNIK_DBUSER=`whoami`
+export MAPNIK_DBUSER="test"
 
 # This is the password we should use to log into the PostgreSQL database.
-export MAPNIK_DBPASS=""
+export MAPNIK_DBPASS="test"
 
 # This is the prefix used in the table names. Matches the -p option in osm2pgsql
 # Unspecified defaults to "planet_osm"

$ . ./set-mapnik-env
$ ./customize-mapnik-map >$MAPNIK_MAP_FILE

Modifier osm.xml.

$ wget http://tile.openstreetmap.org/world_boundaries-spherical.tgz
$ wget http://tile.openstreetmap.org/processed_p.zip
$ wget http://tile.openstreetmap.org/shoreline_300.tar.bz2