Function getBetween

src/traces/funnelarea/plot.js:181–186

(a, b)

}

function getBetween(a, b) {
    return [
        0.5 * (a[0] + b[0]),
        0.5 * (a[1] + b[1])
    ];
}

function setCoords(cd) {
    if(!cd.length) return;