revolution_volume_side — DRIVE 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"))

Usage

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

側面像 1 枚から軸対称を仮定した体積 —— Pappus の形 `V = π Σ |x − x_axis| c(x, z) pitch³(c` = 被覆率、

`x` = 画素の中心の列)。

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)。

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_powder_scoop_pour — py -3.11 examples/poc_powder_scoop_pour.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 (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.