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u(t) is called 60 times per second. t: Elapsed time in seconds. S: Shorthand for Math.sin. C: Shorthand for Math.cos. T: Shorthand for Math.tan. R: Function that generates rgba-strings, usage ex.: R(255, 255, 255, 0.5) c: A 1920x1080 canvas. x: A 2D context for that canvas.
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  • First

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  • Full circle with 8 spikes in 2 𝝅 seconds #spirograph

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  • 𝕊𝕥𝕣𝕒𝕟𝕘𝕖𝕣 𝕊𝕪𝕞𝕓𝕠𝕝𝕤

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  • Random Spirograph Doodle Generator

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  • u/pavel
    I believe this generates all valid spirographs, at least the circle with a small pencil hole rolling in a circle ones.
  • u/pavel
    The incremental drawing is not parameter aware so at the extremes its too slow / too fast and choppy
  • u/pavel
    I was gonna improve this by using the period of a spirograph but gave up deriving it.
  • u/pavel
    I think the period is the denominator of 1-1/m expressed as an irreducible fraction.

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  • Spirograph Patterns

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