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Corrected link in comment about linearizing squareness in squircle()

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Alex Matulich 2024-12-06 09:07:44 -08:00
parent 6c92e0313a
commit a2c30affea
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shapes2d.scad
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@ -2060,7 +2060,7 @@ function squircle_radius(squareness, r, angle) = let(
function _linearize_squareness(s) =
// from Chamberlain Fong (2016). "Squircular Calculations". arXiv.
// https://arxiv.org/vc/arxiv/papers/1604/1604.02174v1.pdf
// https://arxiv.org/pdf/1604.02174v5
let(c = 2 - 2*sqrt(2), d = 1 - 0.5*c*s)
2 * sqrt((1+c)*s*s - c*s) / (d*d);