Function considerCrossing

src/traces/pie/plot.js:711–728

(angle, key)

        // max size if text is placed (horizontally) at the top or bottom of the arc

        var considerCrossing = function (angle, key) {
            if (isCrossing(pt, angle)) {
                var dStart = Math.abs(angle - pt.startangle);
                var dStop = Math.abs(angle - pt.stopangle);

                var closestEdge = dStart < dStop ? dStart : dStop;

                if (key === 'tan') {
                    newT = calcTanTransform(textBB, r, ring, closestEdge, 0);
                } else {
                    // case of 'rad'
                    newT = calcRadTransform(textBB, r, ring, closestEdge, Math.PI / 2);
                }
                newT.textPosAngle = angle;

                allTransforms.push(newT);
            }
        };

        // to cover all cases with trace.rotation added
        var i;