{
  "controller_port": 5277,
  "variable_list": [
    {
      "name": "C_in_B",
      "type": "transform_obj"
    },
    {
      "name": "C_in_D",
      "type": "transform_obj"
    },
    {
      "name": "D_in_Root",
      "type": "transform_obj"
    }
  ],
  "object_list": [
    {
      "type": "transform_tree",
      "name": "transform_tree",
      "init_config": {
        "node_list": [
          {
            "name": "Root"
          },
          {
            "name": "B",
            "parent": "Root",
            "transform": [
              1.123,
              0,
              0,
              1,
              0,
              0,
              0
            ]
          },
          {
            "name": "C",
            "parent": "B",
            "transform_var_name": "C_in_B"
          },
          {
            "name": "D",
            "parent": "Root",
            "transform_var_name": "D_in_Root"
          }
        ]
      },
      "start_config": {
        "watch_list": [
          {
            "target": "C",
            "observer": "D",
            "transform_var_name": "C_in_D"
          }
        ]
      }
    },
    {
      "type": "transform_obj_watcher",
      "name": "transform_watcher",
      "start_config": {
        "variable_name": "C_in_D"
      }
    }
  ]
}