Function findCorner

src/test/resources/libraries/html2canvas/html2canvas.js:2099–2120

(width, height, x, y, closest)

    };
    var distance = function (a, b) { return Math.sqrt(a * a + b * b); };
    var findCorner = function (width, height, x, y, closest) {
        var corners = [
            [0, 0],
            [0, height],
            [width, 0],
            [width, height]
        ];
        return corners.reduce(function (stat, corner) {
            var cx = corner[0], cy = corner[1];
            var d = distance(x - cx, y - cy);
            if (closest ? d < stat.optimumDistance : d > stat.optimumDistance) {
                return {
                    optimumCorner: corner,
                    optimumDistance: d
                };
            }
            return stat;
        }, {
            optimumDistance: closest ? Infinity : -Infinity,
            optimumCorner: null
        }).optimumCorner;
    };
    var calculateRadius = function (gradient, x, y, width, height) {
        var rx = 0;
        var ry = 0;