latlon_to_local — DRIVE japan op

• Data kinds: any × any → any

• Call: import fullseye as fs; fs.ledger.latlon_to_local(lat, lon, origin) -> 'Tuple[np.ndarray, np.ndarray]' (to call the implementation directly, import drivejapan; drivejapan.latlon_to_local(lat, lon, origin) -> 'Tuple[np.ndarray, np.ndarray]'; from the registry, opsdrive.get("latlon_to_local"))

Usage

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

緯度経度 [deg] → 原点 origin = (lat0, lon0) まわりの等距円筒近似の平面座標 (x 東, y 北) [m]。

x = R cos(lat0) Δλ、y = R Δφ(R = 6378137 m)。1 km 四方で 1e-5 の歪み(cos の変化)なので町 1 つには十分。配列可。

Raises `ValueError`: 緯度経度が範囲外・非有限。

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_japan_town — py -3.11 examples/poc_driving_japan_town.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 (japan)

osm_synthetic · osm_parse · osm_road_graph · osm_road_mask · osm_road_loops · osm_route · japan_world · japan_stats


*Provenance: drivejapan.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.