Function transitionFormat

src/traces/indicator/plot.js:551–567

(valueformat, fmt, from, to)

    // Function to override the number formatting used during transitions
    function transitionFormat(valueformat, fmt, from, to) {
        // For now, do not display SI prefix if start and end value do not have any
        if(valueformat.match('s') && // If using SI prefix
            (from >= 0 !== to >= 0) && // If sign change
            (!fmt(from).slice(-1).match(SI_PREFIX) && !fmt(to).slice(-1).match(SI_PREFIX)) // Has no SI prefix
        ) {
            var transitionValueFormat = valueformat.slice().replace('s', 'f').replace(/\d+/, function(m) { return parseInt(m) - 1;});
            var transitionAx = mockAxis(gd, {tickformat: transitionValueFormat});
            return function(v) {
                // Switch to fixed precision if number is smaller than one
                if(Math.abs(v) < 1) return Axes.tickText(transitionAx, v).text;
                return fmt(v);
            };
        } else {
            return fmt;
        }
    }

    function drawBignumber() {
        var bignumberAx = mockAxis(gd, {tickformat: trace.number.valueformat}, trace._range);