path op• Datenarten: matrix → table
• Aufruf: import fullseye as fs; fs.ledger.car_dubins_path(poses, radius=1.0, step=0.05) (die Implementierung direkt: import carpath; carpath.car_dubins_path(poses, radius=1.0, step=0.05); aus dem Register: opsgraph.get("car_dubins_path"))
> Für diesen Operator gibt es noch keine Übersetzung. Es folgt der Originaltext unverändert.
Shortest forward-only path of a car between two poses (Dubins 1957) by the six closed-form words.
poses is [[x, y, theta], [x', y', theta']] (start, goal; theta in radians, counter-clockwise from the x axis). The car turns with minimum radius radius and never reverses. Dubins proved the shortest path is one of LSL, RSR, LSR, RSL, RLR, LRL (arcs of maximal curvature and straights); each word's three segment lengths are closed-form (Shkel and Lumelsky 2001). Every candidate is verified by forward integration to the goal and discarded if it misses (fail-closed against formula slips; the count is returned as n_rejected), and the shortest survivor is the answer.
Returns word, length (metres), segments [(kind, gear, length)] (kind L/S/R, gear +1), points (N, 3) poses sampled every step metres along the path (start and goal included), candidates [(word, length)] for all verified words in increasing length, n_rejected, lower_bound (the Euclidean distance, never exceeded), radius.
Raises ValueError: poses not (2, 3) finite; radius or step not positive; no word reaches the goal (cannot happen for finite poses; reported rather than guessed).
• Katalog der Beispieldaten (Download-URLs / Lizenzen) — 2-D nutzt skimage.data (BSD/Public Domain) plus synthetische Bilder, 3-D nennt Download-URLs echter Datenquellen (Stanford, PDS, …).
• Herkunft und Literatur der Operatoren — die Quellen der Forschung/Verfahren, auf denen diese Operatorfamilie beruht.
• Der kanonische Algorithmus (Autor, Jahr) und seine Anwendungen stehen im Familienleitfaden oben.
• poc_car_parking — py -3.11 examples/poc_car_parking.py
• poc_driving_school — py -3.11 examples/poc_driving_school.py
table als Eingabe)graph_edge_consensus · graph_core_persistence · tree_morphometry · tree_sholl · tree_run_length
path)car_reeds_shepp_path · car_hybrid_astar
*Provenance: carpath.py — GRAPH Operator-Registry. Diese Notiz wird von tools/opdocs.py md erzeugt (nicht von Hand bearbeiten).*
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.