Function fitTextInsideCircle

src/traces/indicator/plot.js:847–852

(textBB, radius)

}

function fitTextInsideCircle(textBB, radius) {
    // compute scaling ratio to have text fit within specified radius
    var elRadius = Math.sqrt((textBB.width / 2) * (textBB.width / 2) + textBB.height * textBB.height);
    var ratio = radius / elRadius;
    return [ratio, textBB, radius];
}

function measureText(txt, font, textAnchor, gd) {
    var element = document.createElementNS('http://www.w3.org/2000/svg', 'text');