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image regeneration

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Pomax
2020-09-06 09:18:11 -07:00
parent 1de1fc9ce3
commit 17c50a403b
48 changed files with 97 additions and 15074 deletions
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6
docs/chapters/circles/arc-approximation.js
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@@ -39,12 +39,12 @@ draw() {
updateCurve(a) {
let angle = -a;
let b = ( cos(angle) - 1 ) / sin(angle);
let b = (cos(angle) - 1 ) / sin(angle);
// new control point
curve.points[1] = {
x: w/2 + r * ( cos(angle) - b * sin(angle) ),
y: w/2 + r * ( sin(angle) + b * cos(angle) )
x: w/2 + r * (cos(angle) - b * sin(angle) ),
y: w/2 + r * (sin(angle) + b * cos(angle) )
};
// new endpoint