Function xyCorners

src/plots/cartesian/dragbox.js:1233–1244

(box)

}

function xyCorners(box) {
    var clen = Math.floor(Math.min(box.b - box.t, box.r - box.l, MINZOOM) / 2);
    return 'M' +
        (box.l - 3.5) + ',' + (box.t - 0.5 + clen) + 'h3v' + (-clen) +
            'h' + clen + 'v-3h-' + (clen + 3) + 'ZM' +
        (box.r + 3.5) + ',' + (box.t - 0.5 + clen) + 'h-3v' + (-clen) +
            'h' + (-clen) + 'v-3h' + (clen + 3) + 'ZM' +
        (box.r + 3.5) + ',' + (box.b + 0.5 - clen) + 'h-3v' + clen +
            'h' + (-clen) + 'v3h' + (clen + 3) + 'ZM' +
        (box.l - 3.5) + ',' + (box.b + 0.5 - clen) + 'h3v' + clen +
            'h' + clen + 'v3h-' + (clen + 3) + 'Z';
}

function calcLinks(gd, groups, xaHash, yaHash, exclude) {
    var isSubplotConstrained = false;