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Sharp feather tips can be approximated by adding smooth sine and cosine waves. This hummingbird’s outline is described by two Fourier series, one for each coordinate. Their rotating chains position the pen where the horizontal and vertical guides meet. Low frequencies capture the broad shape; higher frequencies recover smaller... show more
38,515 görüntüleme • 19 gün önce •via X (Twitter)
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Peter MOUEZA🇲🇫19 gün önce
By Fourier

Klaudivan19 gün önce
@threadreaderapp unroll please

Giovanni19 gün önce
love that. wow

Master Steward of New London19 gün önce
This is how they program drawing automatons, by the way

Ariz Ashraf19 gün önce
Basically the first few waves just sketch the rough outline of the bird, then the higher ones fill in the sharp feathers and finer bits. Gets pretty accurate once you add enough of them.

TheRoloway19 gün önce
Using Fourier series to redraw a hummingbird outline is a beautiful way to show how low frequencies hold the shape and the high ones chase the feathers.

Nícolas Abreu19 gün önce
@grok me explique o que tá acontecendo de forma leiga e resumida.
