kendama op• Data kinds: none → scalar (an op determined by its arguments alone — it takes no image or data input)
• Call: import fullseye as fs; fs.ledger.pendulum_launch_speed(theta0: 'float', L: 'float', g: 'float' = 9.81) -> 'float' (to call the implementation directly, import kendama; kendama.pendulum_launch_speed(theta0: 'float', L: 'float', g: 'float' = 9.81) -> 'float'; from the registry, opsdrive.get("pendulum_launch_speed"))
Giving this speed at the bottom yields amplitude θ₀ (energy conservation): v₀ = √(2gL(1 − cos θ₀)). θ₀ ∈ [0, π].
• Sample-data catalog (download URLs / licences) — 2-D uses skimage.data (BSD/public domain) plus synthetic images; 3-D lists download URLs for real data sources (Stanford, PDS, …).
• Operator provenance and references — the sources of the research/methods this op family came from.
• The canonical algorithm (author, year) and its uses are named in the family usage guide above.
• poc_kendama — py -3.11 examples/poc_kendama.py
scalar as input)spin_from_marker_sequence · carla_transform_matrix · carla_pose_to_world · carla_camera_pose · carla_xy_yaw · carla_scene_load · town_chain · osm_parse
kendama)kendama_params · elliptic_k_agm · pendulum_period_exact · pendulum_rod_simulate · tether_tension_fixed · tether_slack_angle · swing_up_plan · swing_up_apex
*Provenance: kendama.py — DRIVE operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.