cione-comp-lib
Version:
`$ yarn add cione-comp-lib` 或者 `$ npm i cione-comp-lib -S`
35 lines (34 loc) • 914 B
JavaScript
import { normalizeRadian } from "./util.mjs";
var PI2 = Math.PI * 2;
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;
}
export { containStroke };