fit_bounce — DRIVE ball op

• Data kinds: table → table

• Call: import fullseye as fs; fs.ledger.fit_bounce(v_in, omega_in, v_out, omega_out, normal, bp: 'dict') -> 'dict' (to call the implementation directly, import ballistics; ballistics.fit_bounce(v_in, omega_in, v_out, omega_out, normal, bp: 'dict') -> 'dict'; from the registry, opsdrive.get("fit_bounce"))

Usage

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

跳ねの前後の (v, ω) から (e, μ) を閉形式で戻す(同定)。e = −v_n'/v_n。接線力積 J_t = m(v_t' − v_t) の大きさと

J_n = m(v_n' − v_n) の比が μ —— 滑ったままの領域なら等号、途中で転がりに移った(grip)領域なら 下界(μ ≥ |J_t|/J_n)。

どちらかは、跳ねた後の接触点の滑り速度が 0 か(grip)で判る。返り値 `{"e", "mu", "mu_is_lower_bound", "regime", "J_n", "J_t"}`。

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)

• (none yet)

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

course_layout · course_occupancy · course_contains · world_build · world_camera · world_move · lidar_scan · rss_longitudinal_same

Same category (ball)

ball_params · impact_params · flight_vacuum · flight_ode · flight_simulate · flight_state_at · magnus_lift_coefficient · drag_coefficient_sphere

*Provenance: ballistics.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.