scoop op• Data kinds: image2d × scalar → table
• Call: import fullseye as fs; fs.ledger.revolution_volume_side(side, pitch: 'float', *, axis_col: 'float | None' = None, threshold: 'float' = 0.5) -> 'dict' (to call the implementation directly, import scoop; scoop.revolution_volume_side(side, pitch: 'float', *, axis_col: 'float | None' = None, threshold: 'float' = 0.5) -> 'dict'; from the registry, opsdrive.get("revolution_volume_side"))
Volume from 1 side image assuming axial symmetry — Pappus form V = π Σ |x − x_axis| c(x, z) pitch³ (c = coverage, x = pixel-center column).
> The detailed description below is the original text — the summary and the headings are translated.
被覆率に 線形 なので、平らな粉面が行の途中を横切る行でも偏らない(行ごとの幅を直径にした円板の和 Σ π (w/2)² は、満ち具合 f の行を f² で数えて 1.5 % 低く出た、実測)。雑音は先に物の外と内で消す(_clean_coverage)。軸 axis_col(画素の端が整数)を与えなければ被覆率の重心の列。行ごとの重心に直線を当てて軸の傾き axis_tilt_deg(atan2)も返す(傾いた椀は体積が増える; 判定は呼び手)。
返り: V [pitch の単位の 3 乗]、V_px、V_discs(円板の和、比較用)、radius_px(行ごとの半幅)、axis_col、axis_tilt_deg、rows_used、height_px。Raises ValueError: 被覆率でない / 粉が写っていない / 左右の縁に触れている(切れている)。
• 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.
• poc_powder_scoop_pour — py -3.11 examples/poc_powder_scoop_pour.py
table as input)course_layout · course_occupancy · course_contains · world_build · world_camera · world_move · lidar_scan · rss_longitudinal_same
scoop)spoon_bowl_volume · scoop_synth_side · two_view_volume · scoop_volume_read · scoop_count · scoop_image_limit · tilt_wedge_retained · tilt_pour_rate
*Provenance: scoop.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.