Method getAngle

front/components/mpvueGestureLock/gestureLock.js:105–113

(start, end)

    // 获取 画线的 角度
    getAngle(start, end) {
        var diff_x = end.x - start.x,
            diff_y = end.y - start.y;
        if (diff_x >= 0) {
            return 360 * Math.atan(diff_y / diff_x) / (2 * Math.PI);
        } else {
            return 180 + 360 * Math.atan(diff_y / diff_x) / (2 * Math.PI);
        }
    }

    // 判断 当前点是否位于 锁内
    isPointInCycle(x, y, circleX, circleY, radius) {