alife_langton_ant — 2D `artificial-life` op

• 数据种类:image → image

• 调用:fullseye.apply(img, "alife_langton_ant", a=0.5, b=0.5)(2-D 的模型是一张图 + 两个标量旋钮 a,b∈[0,1])

alife_langton_ant: 入力 → 出力

*图为在 128×128 合成输入上实际运行的输出。左为输入，右为输出(非图像的返回值直接显示其值)。*

在阈值化后的图像格点上行走的 Langton 蚂蚁(turmite)。

> 以下的详细说明为原文 —— 摘要与标题已翻译。

Reimplements the two-colour turmite of C. G. Langton, "Studying artificial

life with cellular automata", Physica D 22, 120-149 (1986). Cell colours are

the 0.5-threshold of the image. A single ant starts at the grid centre and,

at every step, applies the RL rule:

• on a white (0) cell: turn 90 degrees right, flip the cell to 1,

step forward one cell;

• on a black (1) cell: turn 90 degrees left, flip the cell to 0,

step forward one cell.

Movement wraps toroidally. Because every visit flips the cell it stands on,

starting from an all-white lattice a cell is black exactly when the ant has

visited it an odd number of times.

`a sets the number of steps N = 1 + int(400a); b` selects the initial

heading (up / right / down / left) which mirrors/rotates the whole

trajectory. Returns the final {0,1} colour field.

• 示例数据目录(下载 URL / 许可证) —— 2-D 用 skimage.data(BSD/公有领域)加合成图,3-D 给出真实数据源(Stanford/PDS 等)的下载 URL。

• 算子来历与参考文献 —— 该算子族所依据的研究/方法出处。

• 算法的正典(作者・年份)与用途见上面的族使用指南。

下面的程序已确认可以运行(与图相同的输入)。在 Studio 帮助中，此块会变成按钮，可当场加载并运行。

alife_langton_ant 0.50 0.50

• gallery2d_physics_alife_3d — py -3.11 examples/gallery2d_physics_alife_3d.py

*Provenance: ops.py — 2D 算子登记表。本条目由 tools/opdocs.py md 自动生成(请勿手工编辑)。*

alife_langton_ant — 2D artificial-life op