azimuthal_integrate — DRIVE `pxrd` op

• Data kinds: image2d × table → table

• Call: import fullseye as fs; fs.ledger.azimuthal_integrate(image, geometry, n_bins=None, two_theta_range=None, mask=None, solid_angle=True, polarization=None, chi_range=None, supersample=2) (to call the implementation directly, import pxrd; pxrd.azimuthal_integrate(image, geometry, n_bins=None, two_theta_range=None, mask=None, solid_angle=True, polarization=None, chi_range=None, supersample=2); from the registry, opsdrive.get("azimuthal_integrate"))

Usage

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

2-D の検出器像を 2θ の 1-D プロファイルに落とす(方位積分、マスクと補正つき)。

各画素を `supersample`² 個の副画素に分け(値は等分)、副画素の中心の 2θ でビンに振り分けて、ビンごとに平均

する(画素の分け方の粗さによる縞を減らす)。`solid_angle=True で相対立体角を、polarization` が数(0 = 無偏光、

1 = 水平偏光)なら偏光因子を、平均の前に割り戻す。`mask は True の画素を **除く**(同じ形の bool)。chi_range`

= (χ₀, χ₁) [deg] で扇形だけを積分(χ は `atan2` の (−180, 180])。非有限の画素は mask に入っていなければ拒否する。

`n_bins の既定は画素 1 個の角の半分の幅になる数(0.5·pixel/distance` [rad])。

返り値(dict): `two_theta(ビンの中心 [deg])・intensity(平均)・count`(副画素の重みの和、0 のビンは

`intensity が nan —— 埋めない)・sigma`(Poisson を仮定した平均の標準誤差)。

Raises ValueError: 2-D でない、mask の形の不一致、非有限の画素、範囲が空、扇形が空、ビン数 < 8。

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_pxrd_phase_peel — py -3.11 examples/poc_pxrd_phase_peel.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 (`pxrd`)

cif_read · cubic_prototype · powder_reflections · scherrer_size · debye_ring_image · detector_two_theta · detector_calibrate · diffraction_peaks

*Provenance: pxrd.py — DRIVE operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*

azimuthal_integrate — DRIVE pxrd op