Function calcAllAutoBins

src/traces/histogram/calc.js:242–425

(gd, trace, pa, mainData, _overlayEdgeCase)

 * bingroup.
 */
function calcAllAutoBins(gd, trace, pa, mainData, _overlayEdgeCase) {
    var binAttr = mainData + 'bins';
    var fullLayout = gd._fullLayout;
    var groupName = trace['_' + mainData + 'bingroup'];
    var binOpts = fullLayout._histogramBinOpts[groupName];
    var isOverlay = fullLayout.barmode === 'overlay';
    var i, traces, tracei, calendar, pos0, autoVals, cumulativeSpec;

    var r2c = function(v) { return pa.r2c(v, 0, calendar); };
    var c2r = function(v) { return pa.c2r(v, 0, calendar); };

    var cleanBound = pa.type === 'date' ?
        function(v) { return (v || v === 0) ? Lib.cleanDate(v, null, calendar) : null; } :
        function(v) { return isNumeric(v) ? Number(v) : null; };

    function setBound(attr, bins, newBins) {
        if(bins[attr + 'Found']) {
            bins[attr] = cleanBound(bins[attr]);
            if(bins[attr] === null) bins[attr] = newBins[attr];
        } else {
            autoVals[attr] = bins[attr] = newBins[attr];
            Lib.nestedProperty(traces[0], binAttr + '.' + attr).set(newBins[attr]);
        }
    }

    // all but the first trace in this group has already been marked finished
    // clear this flag, so next time we run calc we will run autobin again
    if(trace['_' + mainData + 'autoBinFinished']) {
        delete trace['_' + mainData + 'autoBinFinished'];
    } else {
        traces = binOpts.traces;
        var allPos = [];

        // Note: we're including `legendonly` traces here for autobin purposes,
        // so that showing & hiding from the legend won't affect bins.
        // But this complicates things a bit since those traces don't `calc`,
        // hence `isFirstVisible`.
        var isFirstVisible = true;
        var has2dMap = false;
        var hasHist2dContour = false;
        for(i = 0; i < traces.length; i++) {
            tracei = traces[i];

            if(tracei.visible) {
                var mainDatai = binOpts.dirs[i];
                pos0 = tracei['_' + mainDatai + 'pos0'] = pa.makeCalcdata(tracei, mainDatai);

                allPos = Lib.concat(allPos, pos0);
                delete tracei['_' + mainData + 'autoBinFinished'];

                if(trace.visible === true) {
                    if(isFirstVisible) {
                        isFirstVisible = false;
                    } else {
                        delete tracei._autoBin;
                        tracei['_' + mainData + 'autoBinFinished'] = 1;
                    }
                    if(Registry.traceIs(tracei, '2dMap')) {