profile_perturb — PROFILE `synth` op

• Data kinds: pairs → pairs

• Call: import fullseye as fs; fs.ledger.profile_perturb(contour, kind='thicken', amount=0.001, extent=0.1, cycles=6.0) (to call the implementation directly, import profileops; profileops.profile_perturb(contour, kind='thicken', amount=0.001, extent=0.1, cycles=6.0); from the registry, opsprofile.get("profile_perturb"))

Usage

Returns a contour with defects of known magnitude inserted. PERTURB_KINDS.

A shape inspection without this silently passes. Use it to insert a thickness increase of 0.001 chord and check whether the detector returns it as 0.001.

Args:

contour: the original contour.

kind: type of defect.

amount: magnitude (ratio to chord). Only "twist" is in degrees.

extent: chordwise range over which "le_erosion" extends.

cycles: number of waves of "waviness".

Detailed usage guide

• profile_metrology family guide

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)

• profile_shape_inspection — py -3.11 examples/profile_shape_inspection.py

Ops the type connects to (they accept `pairs` as input)

profile_chord_frame · profile_normalise · profile_resample · profile_sides · profile_thickness · profile_camber · profile_leading_edge_radius · profile_trailing_edge_gap

Same category (`synth`)

profile_synth_naca4

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

profile_perturb — PROFILE synth op