long op• Data kinds: scalar × scalar × scalar → scalar
• Call: import fullseye as fs; fs.ledger.stopping_distance_grade(v: 'float', reaction: 'float', brake: 'float', theta: 'float' = 0.0, c_rr: 'float' = 0.0, k: 'float' = 0.0, g: 'float' = 9.80665) -> 'float' (to call the implementation directly, import drivelong; drivelong.stopping_distance_grade(v: 'float', reaction: 'float', brake: 'float', theta: 'float' = 0.0, c_rr: 'float' = 0.0, k: 'float' = 0.0, g: 'float' = 9.80665) -> 'float'; from the registry, opsdrive.get("stopping_distance_grade"))
Closed form of the stopping distance = reaction distance v ρ + braking distance (1/(2k)) ln(1 + k v²/A), A = brake + g sin θ + c_rr g cos θ (v²/(2A) for k = 0).
> The detailed description below is the original text — the summary and the headings are translated.
θ > 0 が上り(止まりやすい)、θ < 0 が下り。ρ の間は速さを保つ。A ≤ 0(下りで制動が坂に負ける)なら止まらない → inf。平地・c_rr = k = 0 で rsssafety.rss_stopping_distance(v, ρ, 0, brake) と同じ式。
Raises ValueError: v < 0、非有限、|θ| ≥ 45°。
• 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_driving_longitudinal — py -3.11 examples/poc_driving_longitudinal.py
• poc_driving_weather — py -3.11 examples/poc_driving_weather.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
long)long_params · road_profile · road_eval · long_simulate · long_energy_residual · stop_line_plan · plan_command · hill_hold_brake_min
*Provenance: drivelong.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.