Features/openfreemap

[khdlr]

Updated the map view to clearly show nodata areas (i.e. Saarland & other countries currently 🙃). Also changed our vector tile source to OpenFreeMap, in order to be ready to add more data layers from across Europe 😉

Considerations:

• Should we also change the on-click behaviour to disallow manual map picks in areas where we don't have data?
• Currently the nodata mask fades to transparent when the user zooms in as the mask is quite low-poly to reduce traffic, and therefore looks ugly from up close. Does this make sense?

[FlorianK13]

New map looks very nice. I think it would be a good feature that simulation clicks are only possible in the light area.

The fading to transparent is fine for me.

[FlorianK13]

Building footprints and 3D Building data will not match anymore, right? But as soon as we want to include other countries we need to change maps anyway so I guess it's fine.

[khdlr]

Another current issue with this: OpenFreeMap is only used for the MapLibre map on the starting page, the 3D view can only display rastered map tiles (which we currently get from basemap.de)

2 possible solutions:

• Leave this as is for the moment (will break as soon as we integrate non-German data)
• Find a way to get MapLibre to render to textures directly (does not seem to be documented)

[khdlr]

@FlorianK13 this should now be ready to merge with the caveat mentioned above (3d view still uses the basemap.de raster map)

[FlorianK13]

For me this is fine

[khdlr]

Sneaked in one more quick fix regarding weird rendering of airports in the vector maps