artificial-life op• Data kinds: image → image
• Call: fullseye.apply(img, "alife_wolfram1d", a=0.5, b=0.5) (the 2-D model is one image plus two scalar knobs a,b∈[0,1])
Wolfram elementary 1-D cellular automaton, drawn as a spacetime diagram.
Reimplements the elementary (radius-1, two-state) cellular automata of
S. Wolfram, Rev. Mod. Phys. 55, 601 (1983) / *A New Kind of Science* (2002).
The initial row is the top row of the image thresholded at 0.5; if that row
is empty a single central seed is used instead, which is the classical
initial condition (rule 90 from a single seed is Pascal's triangle mod 2,
i.e. the Sierpinski gasket). The lattice is circular, one generation is
written per output row, and row 0 is generation 0, so the output is the H x W
{0,1} spacetime diagram.
`a picks the rule from the curated table _ELEMENTARY_RULES`;
`b sets the initial density by adding int(b * W/2)` evenly spaced extra
seed cells to row 0 (b = 0 leaves the thresholded row untouched).
• gallery2d_physics_alife_3d family guide
• 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.
• gallery2d_physics_alife_3d — py -3.11 examples/gallery2d_physics_alife_3d.py
image as input)identity · gaussian · mean_box · bilateral · unsharp · median · min_filter · max_filter
artificial-life)alife_gray_scott · alife_turing · alife_life_step · alife_cyclic_ca · alife_perona_malik · alife_curvature_flow · alife_dla · alife_reaction_bz
*Provenance: ops.py — 2D 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.