package.lib.contain.arc.js Maven / Gradle / Ivy

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A lightweight graphic library providing 2d draw for Apache ECharts

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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);
}