Torus ribbon / 19

Closed ribbon · variable hole

Geometry

One closed band: top → bottom → top in a single longitudinal revolution, so the path closes on itself. The tube radius stays fixed at 1 while the hole opens or closes.

r = 1, R = 1 + hole; u(t) = 2πt, v(t) = π/2 − 2πt, P(0) = P(1)

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Shape & appearance

Inner hole radius Ribbon width View angle Band edge width Base colour Auto-sweep first slider

Saved PNGs

PNG captures are named with their parameter values. Commit the downloaded files to the repo and they will appear here automatically (fetched via the GitHub API).