road_eval — DRIVE long op

• Data kinds: table × scalar → any

• Call: import fullseye as fs; fs.ledger.road_eval(road, l: 'float') -> 'Tuple[float, float, float]' (to call the implementation directly, import drivelong; drivelong.road_eval(road, l: 'float') -> 'Tuple[float, float, float]'; from the registry, opsdrive.get("road_eval"))

Usage

Looks up the road's longitudinal profile at arc length l: (z, sin θ, cos θ). road = None (flat) / a number (constant grade angle θ [rad], z = l sin θ) / the dict from road_profile. On a break point, the value of the following segment is used (right-continuous).

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_driving_longitudinal — py -3.11 examples/poc_driving_longitudinal.py

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

course_crank · course_s_curve · course_turnaround · course_slope · course_intersection · course_parallel_parking · course_crossing · course_road

Same category (long)

long_params · road_profile · long_simulate · long_energy_residual · stopping_distance_grade · 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.