annotate_orientation — ANNOTATE `paper` op

• Data kinds: image2d → image2d

• Call: import annotate; annotate.annotate_orientation(img, angle_deg=0.0, corner='rt', xy=None, size=26.0, margin=16, label='N', color='neutral', width=2, font_size=12, box_alpha=0.0, text_color=None, scheme='okabe_ito', font_path=None) (or opsannotate.get("annotate_orientation"))

Usage

Returns an image (image2d): an arrow plus text showing a bearing (north) or an orientation.

> The detailed description below is the original text — the summary and the headings are translated.

`angle_deg` は 画面の上を 0、時計回りが正(地図の方位と同じ)。矢印は

`xy(中心)か corner` の隅に置く。

Raises

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ValueError

size が非正、矢印が画像に収まらない、未知の corner。

Detailed usage guide

• figure_annotation family guide

Background guides (the physics and conventions behind this op)

• dataset_conventions — 学習データセット規約の知識 — COCO / YOLO / VOC と外観検査での落とし穴

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)

• paper_figure — py -3.11 examples/paper_figure.py

Ops the type connects to (they accept `image2d` as input)

text_box · arrow · leader_line · label_points · crosshair · legend_box · color_bar · scale_bar

Same category (`paper`)

annotate_leader_layout · annotate_leader · annotate_markers · annotate_legend · annotate_dimension_layout · annotate_dimension · annotate_angle_layout · annotate_angle

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

annotate_orientation — ANNOTATE paper op