small tool to export polygons from openstreetmaps as kml or GeoJSON. Uses a PostGIS DB as storage for searching and keeping all OSM data.
use the docker image: ghcr.io/gillesbraun/geo-exporter/geo-exporter
You need a source for base map tiles.
You can either use your own mapboxGL style by specifying MAP_STYLE_URL
or register on maptiler and use
the MAPTILER_KEY env var, which uses the osm_liberty bright style.
And you need a PostGIS DB already filled with osm data. Use osm2pgsql for this.
docker run --rm -it \
-p 8080:8080 \
-e DB_HOST=localhost \
-e DB_USER=user \
-e DB_PASSWORD=password \
-e DB_DATABASE=data \
-e MAPTILER_KEY=key \
-e MAP_STYLE_URL="https://use-your-own-mapbox-gl-style/style.json" \
ghcr.io/gillesbraun/geo-exporter/geo-exporter:latest
apt-get install -y postgis postgresql make unzip cmake g++ libboost-dev libboost-system-dev libboost-filesystem-dev libexpat1-dev zlib1g-dev libbz2-dev libpq-dev libproj-dev lua5.3 liblua5.3-dev pandoc libluajit-5.1-dev osmium-toolwget https://github.com/openstreetmap/osm2pgsql/archive/refs/tags/1.7.2.zip
unzip 1.7.2.zip && rm 1.7.2.zip
cd osm2pgsql-1.7.2
mkdir build && cd build
cmake -D WITH_LUAJIT=ON ..
make
make man
make install
cdcat <<EOT | sudo tee -a /etc/postgresql/14/main/postgresql.conf
shared_buffers=10GB
work_mem=50MB
maintenance_work_mem=10GB
autovacuum_work_mem=2GB
wal_level=minimal
checkpoint_timeout=60min
max_wal_size=10GB
checkpoint_completion_target=0.9
max_wal_senders=0
random_page_cost=1.0
EOT
echo "127.0.0.1:5432:osm:username:password" > .pgpass
sudo service postgresql restart
sudo su - postgres
psql -c "create role username with password 'password';"
psql -c "alter role username with login;"
psql -c "create database osm;"
psql -c "grant all on database osm to username;"
psql -c "create extension postgis;" osm
exitosmium tags-filter -o planet_areas.osm.pbf planet-latest.osm.pbf a/admin_level
osmium tags-filter -o planet_bus_stops.osm.pbf planet-latest.osm.pbf n/highway=bus_stop
osmium merge -o planet_bus_areas.pbf planet_bus_stops.pbf planet_areas.pbfadded coastline and name:en
cp /usr/local/share/osm2pgsql/default.style custom.style
echo "node,way name:en text linear" >> custom.styletime osm2pgsql --cache 150000 -d osm -U username -H 127.0.0.1 --keep-coastlines --latlong --style=custom.style planet_bus_areas.pbfAlso adds an ID column because osm_id are not unique,
psql -h 127.0.0.1 -U username -c "CREATE EXTENSION pg_trgm;" osm &
psql -h 127.0.0.1 -U username -c "CREATE INDEX planet_osm_polygon_admin_level_idx on planet_osm_polygon USING btree (admin_level)" osm &
psql -h 127.0.0.1 -U username -c "CREATE INDEX planet_osm_polygon_boundary_idx on planet_osm_polygon USING btree (boundary)" osm &
psql -h 127.0.0.1 -U username -c "CREATE INDEX planet_osm_polygon_name_lower_idx on planet_osm_polygon USING gin (lower(name) gin_trgm_ops)" osm &
psql -h 127.0.0.1 -U username -c "CREATE INDEX planet_osm_polygon_name_en_lower_idx on planet_osm_polygon USING gin (lower(\"name:en\") gin_trgm_ops)" osm &
psql -h 127.0.0.1 -U username -c "CREATE INDEX planet_osm_polygon_osm_id_idx on planet_osm_polygon USING btree (osm_id)" osm &
psql -h 127.0.0.1 -U username -c "ALTER TABLE planet_osm_polygon ADD COLUMN id SERIAL PRIMARY KEY;" osm \
&& psql -h 127.0.0.1 -U username -c "CREATE UNIQUE INDEX planet_osm_polygon_id_unique_idx on planet_osm_polygon USING btree (id)" osm &