marvin
977a3ffb4c
Clustering was computing distances in EPSG:3857 (Web Mercator), which inflates distances by ~78% at Copenhagen's latitude (55.7°N). This made the 100m threshold actually merge stops within only 56m, and all reported distances were inflated. Now reprojects to EPSG:25832 (UTM 32N) for accurate meter distances, clusters there, converts centroids back to EPSG:3857 for plotting.
Maps for Jet Lag: The Game
Useful things to know
Overpass Turbo
Can be used to query literally any kind of thing from OpenStreetMaps.
The wizard can be used to generate API queries in a human-readable-ish way.
e.g. you can search for "Railway Route" in italy and it'll make a query for you.
Sometimes the queries miss stuff. The above query won't actually get all the train routes.
If you see that your query misses someting (e.g. a railway), you can go to https://www.openstreetmap.org, find that railway, and inspect it to see what you can search for.
Map base layer
You can use Carto as a base layer in QGIS.
Web -> QuickMapServices -> Carto -> Positron
Masking the map
Use the Mask plugin.
Select a polygon using the Select Features by Area or Single Click tool in the toolbar.
Set it as the mask in the plugin menu.
You can combine different polygons using e.g. Vector -> Geoprocessing Tools -> Clip