Function concatExtremes

src/plots/cartesian/autorange.js:320–370

(gd, ax, noMatch)

}

function concatExtremes(gd, ax, noMatch) {
    var axId = ax._id;
    var fullData = gd._fullData;
    var fullLayout = gd._fullLayout;
    var minArray = [];
    var maxArray = [];
    var i, j, d;

    function _concat(cont, indices) {
        for(i = 0; i < indices.length; i++) {
            var item = cont[indices[i]];
            var extremes = (item._extremes || {})[axId];
            if(item.visible === true && extremes) {
                for(j = 0; j < extremes.min.length; j++) {
                    d = extremes.min[j];
                    collapseMinArray(minArray, d.val, d.pad, {extrapad: d.extrapad});
                }
                for(j = 0; j < extremes.max.length; j++) {
                    d = extremes.max[j];
                    collapseMaxArray(maxArray, d.val, d.pad, {extrapad: d.extrapad});
                }
            }
        }
    }

    _concat(fullData, ax._traceIndices);
    _concat(fullLayout.annotations || [], ax._annIndices || []);
    _concat(fullLayout.shapes || [], ax._shapeIndices || []);

    // Include the extremes from other matched axes with this one
    if(ax._matchGroup && !noMatch) {
        for(var axId2 in ax._matchGroup) {
            if(axId2 !== ax._id) {
                var ax2 = getFromId(gd, axId2);
                var extremes2 = concatExtremes(gd, ax2, true);
                // convert padding on the second axis to the first with lenRatio
                var lenRatio = ax._length / ax2._length;
                for(j = 0; j < extremes2.min.length; j++) {
                    d = extremes2.min[j];
                    collapseMinArray(minArray, d.val, d.pad * lenRatio, {extrapad: d.extrapad});
                }
                for(j = 0; j < extremes2.max.length; j++) {
                    d = extremes2.max[j];
                    collapseMaxArray(maxArray, d.val, d.pad * lenRatio, {extrapad: d.extrapad});
                }
            }
        }
    }

    return {min: minArray, max: maxArray};
}

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