{
  "node": [0.8875, 0.345833333],
  "canonical_key": "0.887500,0.200000@1.5706",
  "affected_key": "0.887500,0.195833@1.5706",
  "space": {
    "id": "wall-key-roundtrip",
    "title": "Wall key round-trip",
    "view_box": [0.72, 0.02, 0.27, 0.51],
    "cell_cm": 5,
    "settings": {
      "fill_mode": "none",
      "show_borders": true,
      "show_names": false
    },
    "rooms": [
      {
        "id": "lower",
        "poly": [
          [0.75, 0.05],
          [0.8875, 0.05],
          [0.8875, 0.345833333],
          [0.75, 0.345833333]
        ]
      },
      {
        "id": "upper",
        "poly": [
          [0.75, 0.345833333],
          [0.95, 0.345833333],
          [0.95, 0.5],
          [0.75, 0.5]
        ]
      }
    ],
    "walls": [
      {
        "key": "0.887500,0.200000@1.5706",
        "cm": 29,
        "a": [0.8875, 0.05],
        "b": [0.8875, 0.345833333]
      },
      {
        "key": "0.850000,0.345833@0.0000",
        "cm": 20,
        "a": [0.75, 0.345833333],
        "b": [0.95, 0.345833333]
      }
    ]
  }
}