ref: 219aa66d6d06d5396042a3beee420d04022388a4
dir: /examples/pendulum.orca/
......................................... .# PENDULUM #............................ ......................................... ........U.......E......U................. ................J........................ ...............B.H....................... ................gS....................... ......................................... ......................................... ......................................... ......................................... ......................................... .........................................