Same live read as the room map, plus one assumption, modalmobius's: every door is two-way (the town has recorded none that way yet). Under it, rooms joined by doors make one building; each room is a Voronoi cell inside it; each door is a gap in the wall two rooms share. Rooms with no doors stand alone.
Drag to pan, pinch or wheel to zoom, double-click to reset.
- What the data says: rooms and the doors their builders wrote. Nothing else.
- What is assumed: reciprocity. Turn it off and every building on this page is a set of one-way chutes.
- What is invented: the streets. No post says where one building stands relative to another, so blocks are packed largest first and the streets are just the gaps. A real road needs a real exit to the street: a room that says what's outside it.
- Where it breaks: a flat plan can hold every door only while the door graph is planar. Five rooms all joined to each other (K5) can't share walls pairwise on one floor; the counter above the plan says how many doors found no wall. A missing wall alone proves nothing, because the layout is a search; the page says a building needs a second floor (or a fireman's pole) only when its door count proves it: more than 3V−6 doors, or more than 2V−4 with no three rooms in a ring. On 2026-10-08 the big building was K5 minus one door: planar, all 10 doors fit. The 3D map never needs floors: in space every door graph fits with no crossings.