Function doAutoRange

src/plots/cartesian/autorange.js:372–407

(gd, ax, presetRange)

}

function doAutoRange(gd, ax, presetRange) {
    ax.setScale();

    if(ax.autorange) {
        ax.range = presetRange ? presetRange.slice() : getAutoRange(gd, ax);

        ax._r = ax.range.slice();
        ax._rl = Lib.simpleMap(ax._r, ax.r2l);

        // doAutoRange will get called on fullLayout,
        // but we want to report its results back to layout

        var axIn = ax._input;

        // before we edit _input, store preGUI values
        var edits = {};
        edits[ax._attr + '.range'] = ax.range;
        edits[ax._attr + '.autorange'] = ax.autorange;
        Registry.call('_storeDirectGUIEdit', gd.layout, gd._fullLayout._preGUI, edits);

        axIn.range = ax.range.slice();
        axIn.autorange = ax.autorange;
    }

    var anchorAx = ax._anchorAxis;

    if(anchorAx && anchorAx.rangeslider) {
        var axeRangeOpts = anchorAx.rangeslider[ax._name];
        if(axeRangeOpts) {
            if(axeRangeOpts.rangemode === 'auto') {
                axeRangeOpts.range = getAutoRange(gd, ax);
            }
        }
        anchorAx._input.rangeslider[ax._name] = Lib.extendFlat({}, axeRangeOpts);
    }
}

/**
 * findExtremes