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parttimejob/node_modules/zrender/lib/contain/arc.js

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4 weeks ago
import { normalizeRadian } from './util.js';
var PI2 = Math.PI * 2;
export function containStroke(cx, cy, r, startAngle, endAngle, anticlockwise, lineWidth, x, y) {
if (lineWidth === 0) {
return false;
}
var _l = lineWidth;
x -= cx;
y -= cy;
var d = Math.sqrt(x * x + y * y);
if ((d - _l > r) || (d + _l < r)) {
return false;
}
if (Math.abs(startAngle - endAngle) % PI2 < 1e-4) {
return true;
}
if (anticlockwise) {
var tmp = startAngle;
startAngle = normalizeRadian(endAngle);
endAngle = normalizeRadian(tmp);
}
else {
startAngle = normalizeRadian(startAngle);
endAngle = normalizeRadian(endAngle);
}
if (startAngle > endAngle) {
endAngle += PI2;
}
var angle = Math.atan2(y, x);
if (angle < 0) {
angle += PI2;
}
return (angle >= startAngle && angle <= endAngle)
|| (angle + PI2 >= startAngle && angle + PI2 <= endAngle);
}