OSM Indoor Meeting 2025-09-03

Meeting room: https://osmvideo.cloud68.co/user/tob-2uf-drl-eal

Previous meetup: OSM Indoor Meeting 2025-06-04

Next meetup: OSM Indoor Meeting 2025-12-03

Upcoming Events

• Next OSM Indoor Meetup: 2025-12-03 18:00 CEST
• Berlin_Hack_Weekend_Oktober_2025: Oct 11/12
• Open Transport Community Conference: Oct 17/18
• Karlsruhe_Hack_Weekend_November_2025: Nov 8/9
• SotM EU: Nov 14/15

What happened since last time?

• Blog post about the JOSM tooling discussed last time: https://volkerkrause.eu/2025/06/28/osm-mapping-building-interiors.html
• Balcony tagging discussion: https://lists.openstreetmap.org/pipermail/indoor/2025-July/000038.html

Discussion

Multi-level rooms with different extents

How to map multi-level rooms with different extents, such as university amphitheatre/lecture halls?

• previous discussion: https://wiki.openstreetmap.org/wiki/OSM_Indoor_Meeting_2024-06-05#Multi-floor_rooms_with_different_extends
• example: https://indoorequal.org/#map=18.62/48.3923791/-4.488026
• one area per floor is the currently used approach, there is no standardized relation to link those yet
• there is no way to model inclined areas

Antoine's JSOM indoor MapCSS

Features:

• different background colors for open areas vs closed rooms
• display implicit walls and barriers
• display top/bottom ends of steps/escalators/ramps
• level-range filtering
• connectivity issues of routing paths and steps

Antoine will share/publish this.

Balcony tagging, or more generally building:part implications on SIT

• we do not assume buillding:parts to be routable, if they are they should be explicitly tagged as such (e.g. indoor=area)
• there are no other building:parts with implied impact on routability either, building:part=column is not meant to be used on indoor areas (there's other column tags for that)

3D model repository relaunch

• not yet used for indoor objects, but it also does support that