README.md

Gzmusica map

🌍 Live map here

This is the source code to generate a map of scheduled events from Gzmusica (Galician folk music gigs). It uses Maplibre, an open source fork of Mapbox, and open raster tiles from Carto/OSM (more options, here and here).

To generate an up-to-date map, first install the requirements:

pip install -r requirements.txt

then run:

python main.py 

It will generate a map (axenda.html) with the events for the next month, populated with the data from gzmusica.geojson.

Notes

• Places are only accurate at the city level, not at the specific adresses. They extracted using the OpenStreetMap Nominatim service. We save the coordinates of places in places.json to avoid making duplicate calls to Nominatim. It allows also to add/correct places that are not found with Nominatim: just add them to places.json.
• Ideally one would like to be able to continously filter events by date but it is a pain in the ass because of the clusters. I ended up using buttons to set four different datasets (Today, Tomorrow, This week, This month), following this. This is proper dirty but that's what you get when you barely know Javascript :). So this is my best shot.
• The price to pay for using free stuff is that the map uses raster tiles, not vector tiles. Therefore it doesn't look as crisp. If you want to use a vector map I have included axenda_template-mapbox.html where you can use your mapbox token to access Mapbox vector tiles (it allows 'only' 50K free views per month).
• Related to the above point, I set the scroll-zoom-rate to 1 and disabled the touch zoom to avoid having fractional zoom, which is convenient but makes the map appear very blurry when using raster tiles. For the same reason I also disabled map rotation.