fullseye

compose_funct_1d — ONED function op

• データ種: signal × signal → signal
• 呼び出し: import fullseye as fs; fs.ledger.compose_funct_1d(y1, y2) (実装を直接呼ぶなら import funct1d; funct1d.compose_funct_1d(y1, y2)、台帳から引くなら ops1d.get("compose_funct_1d"))

使い方

Composition y1(y2): the values of y2 used as positions into y1 (HALCON compose_funct_1d).

Each y2[i] is rounded to the nearest integer and clamped into [0, len(y1) - 1], then out[i] = y1[that index]. Nearest-neighbour lookup, no interpolation.

Domain policy (documented difference from HALCON, which errors when the range of y2 leaves the domain of y1): out-of-domain positions are clamped to the first / last sample of y1, never extrapolated. If you need the strict check, compare y_range_funct_1d(y2) against x_range_funct_1d(y1) before composing.

:param y1: outer function, at least 1 sample. :param y2: inner function supplying positions (may be empty). :returns: float64 array with the length of y2. :raises ValueError: non-1-D / NaN / Inf input, or empty y1.

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。
• アルゴリズムの正典(著者・年)と用途は上記ファミリ使い方ガイドに記載。

実行できる例(この op を実際に呼ぶ検証済みサンプル)

• (まだありません)

型が繋がる次の op(signal を入力に取れる)

create_funct_1d_array · create_funct_1d_pairs · smooth_funct_1d_gauss · smooth_funct_1d_mean · derivate_funct_1d · integrate_funct_1d · zero_crossings_funct_1d · local_min_max_funct_1d

同カテゴリ(function)

create_funct_1d_array · create_funct_1d_pairs · smooth_funct_1d_gauss · smooth_funct_1d_mean · derivate_funct_1d · integrate_funct_1d · zero_crossings_funct_1d · local_min_max_funct_1d

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Provenance: funct1d.py — ONED 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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