grid_lines — ANNOTATE plot op

Data kinds: image2d × axesimage2d

Call: import annotate; annotate.grid_lines(img, axes, xticks=None, yticks=None, color='neutral', width=1, alpha=0.35, scheme='okabe_ito', style=None) (or opsannotate.get("grid_lines"))

Usage

Grid lines. If no tick values are given, :func:nice_ticks chooses them.

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

`alpha` は格子を薄く敷くための重み(データ線より前に出ないように)。

Raises

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ValueError

alpha が [0,1] の外。

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)

annotate_gallerypy -3.11 examples/annotate_gallery.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 (plot)

axes_transform · data_to_pixel · nice_ticks · axes_frame · ticks · plot_series


*Provenance: annotate.py — ANNOTATE 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.