One room — an ArchLang floor plan example

The smallest complete plan: one room, one door, one window and a dimension chain.

This plan compiles to 1 room, 20 m² of floor area and 1 window; every room is reachable from the entrance.

"One Room" — a 1-room floor plan, 20 m² total: Room (20 m²); 1 door, 1 window, entrance via d_in.

Open in the editor

The source

This is the whole plan. The drawing above is what the compiler produced from it — nothing was drawn by hand.

# The smallest complete ArchLang plan: one room, one door, one window, one dimension chain.
# Every other example is this file with more of it — a shell you can walk into, a room that
# knows what it is for, and openings pinned to the wall by position rather than coordinate.
plan "One Room" {
  units mm
  grid 50
  north up
  dims auto overall
  wall id=shell exterior thickness 200 { (0,0) (5000,0) (5000,4000) (0,4000) close }
  room id=r_main at (0,0) size 5000x4000 label "Room" uses living
  door   id=d_in on shell at 60% width 900  swing in   # 60% of the loop's run: the south wall
  window id=w_n  on shell at 10% width 1500            # 10%: the north wall
  title { project "One Room" drawn_by "ArchLang" date "2026-08-16" }
}

One room — an ArchLang floor plan example

The source

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