labelHelper.js

/**
 * @module echarts/chart/helper/Symbol
 */
define(function (require) {

    var modelUtil = require('../../util/model');

    var helper = {};

    helper.findLabelValueDim = function (data) {
        var valueDim;
        var labelDims = modelUtil.otherDimToDataDim(data, 'label');

        if (labelDims.length) {
            valueDim = labelDims[0];
        }
        else {
            // Get last value dim
            var dimensions = data.dimensions.slice();
            var dataType;
            while (dimensions.length && (
                valueDim = dimensions.pop(),
                dataType = data.getDimensionInfo(valueDim).type,
                dataType === 'ordinal' || dataType === 'time'
            )) {} // jshint ignore:line
        }

        return valueDim;
    };

    return helper;
});