swing_up_lift — DRIVE kendama op

• Data kinds: table → scalar

• Call: import fullseye as fs; fs.ledger.swing_up_lift(kp: 'dict', *, apex_above_cup: 'float' = None, T_lift: 'float' = 0.15, g: 'float' = None) -> 'float' (to call the implementation directly, import kendama; kendama.swing_up_lift(kp: 'dict', *, apex_above_cup: 'float' = None, T_lift: 'float' = 0.15, g: 'float' = None) -> 'float'; from the registry, opsdrive.get("swing_up_lift"))

Usage

> This operator's description has not been translated yet. The original text follows as it is.

振り上げ(bang)の持ち上げ量を閉形式で: 玉の頂点が受ける皿の中心の `apex_above_cup 上に来る lift(:func:swing_up_apex` の逆)。

頂点 − lift − cup_z = tie_z + lift/2 − L + 2 lift²/(g T²) − lift − cup_z = A を lift の 2 次方程式として正の根。

既定 A = max(h_c + 0.9 r_b, (top_offset − cup_z) + r_b + 0.035): 玉の下端がけん玉のいちばん高い所を 35 mm 越える頂点

(:func:catch_plan_staged の hold は玉がそこを越えるまで皿を寄せない。越えている時間 ≈ 2√(2·0.03/g) = 0.17 s で皿を

横へ 10 cm 戻す)。減速の加速度 4·lift/T² が g を超えないと玉は飛ばない(ValueError)。

References (sample data, literature)

• 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.

Runnable examples (verified samples that actually call this op)

• poc_kendama — py -3.11 examples/poc_kendama.py

Ops the type connects to (they accept scalar as input)

spin_from_marker_sequence · road_eval · long_simulate · stopping_distance_grade · stop_line_plan · hill_hold_brake_min · hill_start_rollback · hill_start_command

Same category (kendama)

kendama_params · elliptic_k_agm · pendulum_period_exact · pendulum_launch_speed · pendulum_rod_simulate · tether_tension_fixed · tether_slack_angle · swing_up_plan


*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.