vislite/lib/rotate/index.es.js

灵活、快速、简单的数据可视化交互式跨端前端库

function rotate (cx, cy, deg, x, y) {
    var cos = Math.cos(deg), sin = Math.sin(deg);
    return [
        (x - cx) * cos - (y - cy) * sin + cx,
        (x - cx) * sin + (y - cy) * cos + cy
    ];
}

export { rotate as default };