namespace: drake::examples::acrobot
elements:
  -
    name: theta1
    doc: The shoulder joint angle
    doc_units: rad
    default_value: 0.0
  -
    name: theta2
    doc: The elbow joint angle
    doc_units: rad
    default_value: 0.0
  -
    name: theta1dot
    doc: The shoulder joint velocity
    doc_units: rad/s
    default_value: 0.0
  -
    name: theta2dot
    doc: The elbow joint velocity
    doc_units: rad/s
    default_value: 0.0