{
  "file_spec": 1.2,
  "file_creator": "Kamibase seed script",
  "file_author": "Traditional",
  "file_title": "Waterbomb base",
  "file_description": "Both diagonals and both book folds, drawn the way every book draws them. Structurally clean, but the centre carries four mountains and four valleys, which Maekawa's theorem says cannot fold flat as drawn.",
  "file_classes": [
    "singleModel"
  ],
  "frame_classes": [
    "creasePattern"
  ],
  "frame_attributes": [
    "2D",
    "manifold",
    "orientable"
  ],
  "frame_unit": "unit",
  "vertices_coords": [
    [
      0,
      0
    ],
    [
      0,
      0.5
    ],
    [
      0,
      1
    ],
    [
      0.5,
      0
    ],
    [
      0.5,
      0.5
    ],
    [
      0.5,
      1
    ],
    [
      1,
      0
    ],
    [
      1,
      0.5
    ],
    [
      1,
      1
    ]
  ],
  "edges_vertices": [
    [
      0,
      1
    ],
    [
      0,
      3
    ],
    [
      0,
      4
    ],
    [
      1,
      2
    ],
    [
      1,
      4
    ],
    [
      2,
      4
    ],
    [
      2,
      5
    ],
    [
      3,
      4
    ],
    [
      3,
      6
    ],
    [
      4,
      5
    ],
    [
      4,
      6
    ],
    [
      4,
      7
    ],
    [
      4,
      8
    ],
    [
      5,
      8
    ],
    [
      6,
      7
    ],
    [
      7,
      8
    ]
  ],
  "edges_assignment": [
    "B",
    "B",
    "V",
    "B",
    "M",
    "V",
    "B",
    "M",
    "B",
    "M",
    "V",
    "M",
    "V",
    "B",
    "B",
    "B"
  ],
  "edges_foldAngle": [
    0,
    0,
    180,
    0,
    -180,
    180,
    0,
    -180,
    0,
    -180,
    180,
    -180,
    180,
    0,
    0,
    0
  ],
  "faces_vertices": [
    [
      0,
      3,
      4
    ],
    [
      0,
      4,
      1
    ],
    [
      1,
      4,
      2
    ],
    [
      2,
      4,
      5
    ],
    [
      3,
      6,
      4
    ],
    [
      4,
      6,
      7
    ],
    [
      4,
      7,
      8
    ],
    [
      4,
      8,
      5
    ]
  ]
}