{
  "box_a": 300.0,
  "NT": 1000000,
  "DT": 0.001,
  "NSTEP": 500,
  "warmup_steps": 0,
  "method": "leapfrog",
  "G": [
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    0.0,
    0.0
  ],
  "B": [
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    0.0,
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  ],
  "gravity_field": 0,
  "gravity_interaction": 0,
  "elastic_force": 1,
  "damping_force": 1,
  "gravity_strength": 1.0,
  "driving_force": 1,
  "save_trajectory": 0,
  "alpha": [
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    0.0,
    0.0,
    0.0,
    0.0,
    0.0
  ],
  "ball_radius": 0.5,
  "ball_color": [
    0.2,
    0.6,
    0.9
  ],
  "box_color": [
    0.8,
    0.8,
    0.85
  ],
  "use_marker": 1,
  "camera_distance": 120.0,
  "camera_elevation": 0.0,
  "camera_azimuth": 0.0,
  "camera_center_x": 60.0,
  "camera_center_y": 0.0,
  "camera_center_z": 0.0
}