Cylinder
A cylinder, as it applies to Life, usually refers to a semi-infinite Life universe that takes the form of a strip n cells wide (or high) and infinitely long. It may be visualized as a cylinder of circumference n, gotten by taking opposite edges of the strip as neighbors. It is the structure on which second stage de Bruijn diagrams are defined. X acts as a torus, whereas Y acts as a plane.
| <html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 3, y = 3, rule = B3/S23:T0,7
b2o$obo$2bo!
#C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
#C [[ AUTOSTART GPS 7 TRACKLOOP 28 1/4 0 ]]<html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html> Please enable Javascript to view this LifeViewer. <html></noscript></canvas></div></html> |
| A glider traveling across a cylindrical universe (click above to open LifeViewer) RLE: here Plaintext: here |
See also
- Topology
- Finite plane
- Möbius strip
- Torus
- Klein bottle
- Cross-surface
- Sphere
- Bounded grids
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