sign_params — DRIVE `roadjp` op

• Data kinds: none → table (an op determined by its arguments alone — it takes no image or data input)

• Call: import fullseye as fs; fs.ledger.sign_params(kind: 'str', *, side: 'float | None' = None) -> 'dict' (to call the implementation directly, import roadjp; roadjp.sign_params(kind: 'str', *, side: 'float | None' = None) -> 'dict'; from the registry, opsdrive.get("sign_params"))

Usage

Returns the shape, dimensions and colors of road sign kind (published values; to be checked against the primary source).

{"shape", "width", "height", "mount_height", "ground", "border", "ink", "side"}. shape is circle / triangle_down / diamond / pentagon / rect. width and height are the outer dimensions of the plate [m]:

circle diameter 0.6, inverted triangle side 0.6 (height = side × √3/2), diamond side 0.45 (diagonal = side × √2), wide rectangle 0.6 × 0.3, pentagon (crosswalk) 0.6 × 0.6 — source: Order on Road Signs, Division Lines and Road Markings (Japan), Appended Table 2 / KICTEC dimension table. The rectangle and pentagon dimensions have not been checked against that table (to be verified). Passing side replaces the side length (diameter for the circle, side for the diamond) (e.g. to give the stop sign its drawn side of 800 mm; regulatory and instruction signs may legally be 1/2 to 2 times the drawn size). mount_height = 1.8 (roadside type, lower edge of the plate).

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)

• gallery_drive_japan_roads — py -3.11 examples/gallery_drive_japan_roads.py

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 (`roadjp`)

sign_image · plate_mesh_from_image · sign_mesh · add_sign · signal_jp_mesh · add_signal_jp

*Provenance: roadjp.py — DRIVE operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*

sign_params — DRIVE roadjp op