vol_rotate — 3D `geom_transform` op

• Data kinds: voxel → voxel

• Call: import fullseye as fs; fs.ledger.vol_rotate(vol, angle_deg, axes=(1, 2), order=1, reshape=False, mode='constant', cval=0.0) (to call the implementation directly, import volxform; volxform.vol_rotate(vol, angle_deg, axes=(1, 2), order=1, reshape=False, mode='constant', cval=0.0); from the registry, ops3d.get("vol_rotate"))

Usage

Rotate a volume in the plane of an axis pair (`scipy.ndimage.rotate`).

*axes* names the rotation plane and must be exactly one of `(0, 1)`

(z-y plane, turning about the x-axis), `(0, 2)` (z-x, about y) or

`(1, 2)` (y-x, about z — the axial-slice rotation; the default). Any

other pair — including a reversed one like `(2, 1)` — raises

`ValueError`, so the direction convention below is never silently

flipped.

Direction (pinned): a positive *angle_deg* rotates **from the first

axis of** *axes* toward the second — the same convention as

`np.rot90. Concretely, `vol_rotate(v, 90, axes=a, reshape=False,

order=0)` equals np.rot90(v, 1, axes=a)` bit-for-bit when the in-plane

shape is square (the test pins this).

`reshape=False` (default) keeps the input shape (in-plane corners that

leave the frame are lost, entering ones are filled with *cval* per *mode*);

`reshape=True` grows the in-plane shape to contain the whole rotated

frame — the grown output is cap-checked against `MAX_VOXELS` *before*

the call. *order* is the spline degree (exact integer 0..5; >1 overshoots

— module notes).

Returns a `(D, H, W)` float64 volume (same shape unless *reshape*).

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)

• vol_geometry_transform — py -3.11 examples_3d/vol_geometry_transform.py

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

voxel_to_mips · voxel_to_mesh · signed_distance_field · to_points · sobel3d · hessian3d · curvature_maps · edt_jfa

Same category (`geom_transform`)

vol_resize · vol_affine

*Provenance: volxform.py — 3D operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*

vol_rotate — 3D geom_transform op