Anything that moves has a rhythm: a period, a phase, a shape and a range. A preset sets them all at once; the switch beside any row in the other tabs makes that one value rhythmic.
On one clock
Everything is still. Switch a row on to give it a rhythm.
The spiral itself: how big it is and how it turns about its centre, and for the line, how fast it opens and how many times it winds. Only what the view on screen uses is here.
Size and linewith or without a rhythm
Growth
Turning
The colour of the line and the words, how see-through they are, and the ground behind them.
Background
How the line is laid down: its width, how much of it is drawn, and where the drawing starts.
Movesswitch off = still, on = rhythm
Draw from
Line ends
Here the spiral is not drawn. Each new seed appears at the centre, in the place where the seeds already there crowd it least, and everything grows outward. No rule names an angle or an arm: the angle between one seed and the next, and the arms you can count, are measured from the seeds and shown under the spiral. (The model is Douady and Couder's, 1992, for how a growing plant tip places its seeds.)
An ocean of wave curls, the one in the spiral garden. Crests come in on a diagonal; each curl winds over as its crest reaches the shore, and its eye stays open however many turns it has. Grid lays the curls on even rows and columns instead, each filling its cell, so the waves stay in proportion.
The SVG and the PNG are the frame on screen: pause first to choose the moment. The code and the link keep everything that moves. (The ocean is drawn on a canvas, so it has a PNG and a link but no SVG.)
Settings as data