{
  "center": [0.000013999810756924203, 0.04100000001080638, -0.00006966645228539306],
  "extents": [0.085, 0.082, 0.215],
  "scale": [0.5515992345450169, 0.5466666449440859, 0.5156605603637371],
  "size_annotation": {
    "unit": "meter",
    "axis_order": ["x", "y", "z"],
    "physical_size_m": [0.085, 0.082, 0.215],
    "physical_size_mm": [85.0, 82.0, 215.0],
    "source_bbox_size_m": [0.15409738570451736, 0.15000000596046448, 0.41694094240665436],
    "source_bbox_size_mm": [154.09738570451736, 150.00000596046448, 416.94094240665436],
    "scale_from_source_bbox": [0.5515992345450169, 0.5466666449440859, 0.5156605603637371],
    "semantic_note": "User-confirmed physical boat size is length 215 mm, width 85 mm, height 82 mm. The current GLB bbox extents are ordered X=0.1541, Y=0.1500, Z=0.4169 in source mesh units, so the longest Z axis maps to boat length, X maps to width, and Y maps to height. Stored extents follow metadata axis order X=width, Y=height, Z=length."
  },
  "target_pose": [],
  "contact_points_pose": [
    [
      [1.0, 0.0, 0.0, 0.0],
      [0.0, 1.0, 0.0, 0.0],
      [0.0, 0.0, 1.0, 0.0],
      [0.0, 0.0, 0.0, 1.0]
    ]
  ],
  "transform_matrix": [
    [1.0, 0.0, 0.0, 0.0],
    [0.0, 1.0, 0.0, 0.0],
    [0.0, 0.0, 1.0, 0.0],
    [0.0, 0.0, 0.0, 1.0]
  ],
  "functional_matrix": [],
  "orientation_point": [],
  "contact_points_group": [[0]],
  "contact_points_mask": [true],
  "target_point_description": [],
  "contact_points_description": [
    "Provisional boat reference at the canonical local origin. The final cargo placement anchor on the boat/cabin is task-specific and remains to be confirmed."
  ],
  "functional_point_description": [],
  "orientation_point_description": [],
  "stable": false,
  "source": "Draft metadata generated from assets/objects/008_boat/visual/base0.glb bbox plus user-confirmed physical boat size: length 215 mm, width 85 mm, height 82 mm. Axis mapping is X=width, Y=height, Z=length based on the GLB extent ratios."
}