{
  "name": "part",
    "parentName": "fixed",
    "posMat": [
      [
        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
      ]
    ]
}