fit_poly_surface — 3D surface_fit op

• Data kinds: image2d × image2d × image2d → poly_surface

• Call: import match3d; match3d.fit_poly_surface(x, y, z, degree=2) (or ops3d.get("fit_poly_surface"))

Usage

Scattered (x,y,z) → a polynomial least-squares z=f(x,y). Returns model (coef/powers/degree/rms/pv).

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.

Runnable examples (verified samples that actually call this op)

• contours_to_terrain — py -3.11 examples_3d/contours_to_terrain.py

Ops the type connects to (they accept poly_surface as input)

fuse_to_voxel · eval_poly_surface

Same category (surface_fit)

eval_poly_surface · surface_form_error · background_flatten

*Provenance: match3d.py — 3D 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.