Function calc

src/traces/pie/calc.js:10–88

(gd, trace)

var extendedColorWayList = {};

function calc(gd, trace) {
    var cd = [];

    var fullLayout = gd._fullLayout;
    var hiddenLabels = fullLayout.hiddenlabels || [];

    var labels = trace.labels;
    var colors = trace.marker.colors || [];
    var vals = trace.values;
    var len = trace._length;
    var hasValues = trace._hasValues && len;

    var i, pt;

    if(trace.dlabel) {
        labels = new Array(len);
        for(i = 0; i < len; i++) {
            labels[i] = String(trace.label0 + i * trace.dlabel);
        }
    }

    var allThisTraceLabels = {};
    var pullColor = makePullColorFn(fullLayout['_' + trace.type + 'colormap']);
    var vTotal = 0;
    var isAggregated = false;

    for(i = 0; i < len; i++) {
        var v, label, hidden;
        if(hasValues) {
            v = vals[i];
            if(!isNumeric(v)) continue;
            v = +v;
        } else v = 1;

        label = labels[i];
        if(label === undefined || label === '') label = i;
        label = String(label);

        var thisLabelIndex = allThisTraceLabels[label];
        if(thisLabelIndex === undefined) {
            allThisTraceLabels[label] = cd.length;

            hidden = hiddenLabels.indexOf(label) !== -1;

            if(!hidden) vTotal += v;

            cd.push({
                v: v,
                label: label,
                color: pullColor(colors[i], label),
                i: i,
                pts: [i],
                hidden: hidden
            });
        } else {
            isAggregated = true;

            pt = cd[thisLabelIndex];