fullseye

fit_box3 — 3D geometry op

• データ種: points → primitive
• 呼び出し: import fullseye as fs; fs.ledger.fit_box3(points) -> 'dict' (実装を直接呼ぶなら import measure3d; measure3d.fit_box3(points) -> 'dict'、台帳から引くなら ops3d.get("fit_box3"))

使い方

Oriented box fit by PCA (fast, noise-tolerant; the same construction as

pcseg.obb but with the measure-style dict). Axes are the principal directions of the point spread; extents come from the projected span. Returns center (cd/cr/cc), axes (3, 3 — unit ROW vectors, depth/row/col components), sorted half-extents l1 >= l2 >= l3, full size, volume, corners (8, 3), and the RMS point-to-box-surface distance. For the true minimum-volume box use smallest_box3. Raises ValueError on < 4 points or a degenerate (flat) set.

参考(サンプルデータ・文献)

• サンプルデータ カタログ(DL URL / ライセンス) — 2-D は skimage.data(BSD/public)+ 合成、3-D は実データ源(Stanford/PDS 等)の DL URL。
• 演算子の来歴・参考文献 — この op 族の元になった研究/手法の出典。

実行できる例(この op を実際に呼ぶ検証済みサンプル)

• oriented_bounding_box — py -3.11 examples_3d/oriented_bounding_box.py

型が繋がる次の op(primitive を入力に取れる)

fuse_to_voxel · angle_between_lines · angle_between_planes · angle_line_plane · distance_point_plane · distance_point_line · distance_line_line · distance_segment_segment

同カテゴリ(geometry)

line_from_2points · plane_from_3points · angle_3points · angle_between_lines · angle_between_planes · angle_line_plane · distance_point_plane · distance_point_line

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Provenance: measure3d.py — 3D operator registry. この per-op ノートは tools/opdocs.py md が自動生成(手編集しない)。

© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.

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