mapproxy-config

Avaliable maps

🗺 A list of all avaliable maps with demo and editing urls …

Other projects

• luftbilder.berlin.codefor.de showcases areal images from differnt years Github
• maps.berlin.codefor.de showcases all kind of maps Github
• github.com/codeforberlin/tilestache-config is the config for serving areal imagery from file (config)

Add new layer

• Use https://gdi.berlin.de/viewer/main/ as the main source
• Inspect the network request of layers
• Craft the config from there
• Add coumentation in layer_docs if helpful

Install

python3 -m venv env
source env/bin/activate
pip install -r requirements.txt

Run local

mapproxy-util serve-develop config.yml

Deployment

# creates the wsgi.py script
mapproxy-util create -t wsgi-app -f config.yml wsgi.py

Note: We don't use make_wsgi_app(…, reloader=True) but restart the server manually. The auto reloading would only restart if the config is valid, which would hide a broken edit. The manual reload will make the error visible.

Create a systemd service script in /etc/systemd/system/mapproxy.service.

[Unit]
Description=Mapproxy gunicorn daemon
After=network.target

[Service]
User=tiles
Group=tiles
WorkingDirectory=/srv/tiles/proxy
ExecStart=/srv/tiles/proxy/env/bin/gunicorn --access-logfile /var/log/mapproxy/access.log --error-logfile /var/log/mapproxy/error.log --bind unix:/tmp/mapproxy.sock --workers 9 wsgi:application

[Install]
WantedBy=multi-user.target

systemctl daemon-reload
systemctl start mapproxy

Add to nginx configuration:

    location /proxy/ {
        proxy_pass http://unix:/tmp/mapproxy.sock;
        proxy_set_header Host $http_host;
        proxy_set_header X-Script-Name /proxy;
    }

nginx -t
systemctl start nginx

Debugging

Which config sources are recognized by Mapproxy?

Use the Mapproxy Debug Page. It lists all layers that are avaliable based on the config. However, there is an issue with the projection, so the previews do not work.

Which URLs does the Mapproxy call?

Check that log.ini "active" (not commented out); if needed, change and restart. Use cat mapproxy-config/mapproxy_log/source-requests.log to see the requested URLs.

Copy one of those URLs and fiddle with the URL params the browser until the right image is shown.

Remeber to delete the file system cache.

ls mapproxy-config/cache_data/ shows all layer that have cached images. Remove the folder to trigger a cache refresh, eg rm -rf mapproxy-config/cache_data/alkis_30_cache_EPSG900913

Remeber to refresh the browser cache.

Even with a fresh file system cache, images might still be cached in the browser. Unfortunately, iD Editor does not allow hard reloads to refresh this data. One workaround is, to zoom and pan the map so new images are requested.

Which layer are avaliable for a given WMS service?

Use URLs like https://fbinter.stadt-berlin.de/fb/wms/senstadt/wmsk_alkis?service=WMS&request=GetCapabilities&version=1.3.0 to create a list of layer IDs with description. Examples are [layer_alkis_berlin.md] and [layer_strassenbefahrung_berlin.md].

You can also try https://mybinder.org/v2/gh/rbuffat/eli-helper/master (GitHub) with the fbintern URL from above to get a list of avaliable layers.

Mapproxy documentation.

• https://mapproxy.github.io/mapproxy/latest/index.html
• https://mapproxy.github.io/mapproxy/latest/configuration_examples.html#merge-multiple-layers how to merge layers

To see the installed version of mapproxy:

cd mapproxy-config
source env/bin/activate
mapproxy-util --version
# MapProxy 1.13.2

Useful WMS query params

?service=WMS&request=GetCapabilities&version=1.3.0

?format=image%2Fpng&height=512&bbox=388800.010065,5818137.195276,393794.488433,5821374.047744&layers=0&srs=ESPG:25833&style=default&service=WMS&request=GetMap&width=512&version=1.3.0

?width=512&height=512&bbox=388800,5818137,393794,5821374&layers=0&srs=EPSG:4326&styles=default&format=image/png&service=WMS&request=GetMap&version=1.3.0