Phyllotaxis
the spirals are counted, not admired
Generator

Three cut-offs at the same nominal width of 3 spacings

The weight the interaction is multiplied by, against distance. They halve at 2.08 (exponential), 2.50 (gaussian), 3.00 (hard) spacings — so a rule described as "cut off at 3 spacings" is three different rules until the falloff is named. Every later figure is read in half-weight radii for that reason.
Three cut-offs at the same nominal width of 3 spacings. The weight the interaction is multiplied by, against distance. They halve at 2.08 (exponential), 2.50 (gaussian), 3.00 (hard) spacings — so a rule described as "cut off at 3 spacings" is three different rules until the falloff is named. Every later figure is read in half-weight radii for that reason.

Drawn at its defaults, in a neighbourhood written down as a claim. It takes no options at all, so every essay calling it gets this exact drawing.

Called by 5 essays

the blast radius of changing it

Where the angle comes from

A neighbourhood is a hypothesis

 Where the angle comes from

A hard edge is not a falloff

 Where the angle comes from

Two shapes, one threshold

 Where the angle comes from

The fragility belonged to the window

 What a plant might be doing

The neighbourhood was already settled

All 101 generators