Function handleDefaults

src/plots/polar/layout_defaults.js:24–237

(contIn, contOut, coerce, opts)

var axisNames = constants.axisNames;

function handleDefaults(contIn, contOut, coerce, opts) {
    var bgColor = coerce('bgcolor');
    opts.bgColor = Color.combine(bgColor, opts.paper_bgcolor);

    var sector = coerce('sector');
    coerce('hole');

    // could optimize, subplotData is not always needed!
    var subplotData = getSubplotData(opts.fullData, constants.name, opts.id);
    var layoutOut = opts.layoutOut;
    var axName;

    function coerceAxis(attr, dflt) {
        return coerce(axName + '.' + attr, dflt);
    }

    for(var i = 0; i < axisNames.length; i++) {
        axName = axisNames[i];

        if(!Lib.isPlainObject(contIn[axName])) {
            contIn[axName] = {};
        }

        var axIn = contIn[axName];
        var axOut = Template.newContainer(contOut, axName);
        axOut._id = axOut._name = axName;
        axOut._attr = opts.id + '.' + axName;
        axOut._traceIndices = subplotData.map(function(t) { return t.index; });

        var dataAttr = constants.axisName2dataArray[axName];
        var axType = handleAxisTypeDefaults(axIn, axOut, coerceAxis, subplotData, dataAttr, opts);

        handleCategoryOrderDefaults(axIn, axOut, coerceAxis, {
            axData: subplotData,
            dataAttr: dataAttr
        });

        var visible = coerceAxis('visible');
        setConvert(axOut, contOut, layoutOut);

        coerceAxis('uirevision', contOut.uirevision);

        // We don't want to make downstream code call ax.setScale,
        // as both radial and angular axes don't have a set domain.
        // Furthermore, angular axes don't have a set range.
        //
        // Mocked domains and ranges are set by the polar subplot instances,
        // but Axes.findExtremes uses the sign of _m to determine which padding value
        // to use.
        //
        // By setting, _m to 1 here, we make Axes.findExtremes think that
        // range[1] > range[0], and vice-versa for `autorange: 'reversed'` below.
        axOut._m = 1;

        switch(axName) {
            case 'radialaxis':
                coerceAxis('minallowed');
                coerceAxis('maxallowed');