Natsuyasumi Shotengai

Natsuyasumi Shotengai / Android app

Cycloid Automata Art

Invention Workshop

Cycloid Automata

A clock-weight moves only a little, yet the gear path becomes a new pattern. This is a small automatic art device generated from the present moment. You do not need to know the mechanism first. Watch it like a summer research exhibit: quiet, strange, and always slightly different.

Generation data for this moment

Date
Aug 26, 2026
Time
12:40:16
Seed
20260826124016

Curve 1

hypotrochoid / R:108 / r:28 / d:124 / speed:0.93 / phase:2.72 / color:#b6ff7a / width:1.29 / alpha:0.56

Curve 2

epitrochoid / R:94 / r:66 / d:110 / speed:0.76 / phase:1.058 / color:#fff7c2 / width:2.35 / alpha:0.53

Curve 3

epitrochoid / R:125 / r:39 / d:114 / speed:1.46 / phase:5.225 / color:#ff6bb5 / width:2.64 / alpha:0.81

Natsuyasumi Shotengai means "Summer Vacation Shopping Street" in Japanese. It is a small imaginary arcade of games, tools, memories, and interactive art.

Cycloid Automata Art is a calm visual app inspired by gears, rotating points, drawing machines, and the mathematical beauty of cycloid curves.

What does it do?

The app creates moving curve patterns from simple rotational motion. Instead of asking you to win or clear a stage, it lets you watch forms grow, overlap, and settle into decorative rhythms.

Why cycloids?

A cycloid is a curve traced by a point on a rolling circle. The rule is simple, but the resulting line can feel strangely alive: part machine, part flower, part clockwork ornament.

How to enjoy it

Use it like a small moving picture, a wallpaper idea, or a quiet sketching machine. The English exhibit page explains the idea behind the motion.

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