在图例中显示Series和colorAxis [英] Show Series and colorAxis both in Legend

问题描述

图例中是否可以同时包含colorAxis和series? http://jsfiddle.net/6k17dojn/我看到我每次切换时只能显示一个此设置
colorAxis: { showInLegend: true, }

Is it possible to have both colorAxis and series in the legend? http://jsfiddle.net/6k17dojn/ i see i can only show one at a time when I toggle this setting
colorAxis: { showInLegend: true, }

推荐答案

当前要显示colorAxis的基本图例，您需要向Highcharts核心添加一些代码.如果showInLegend属性设置为false，则下面的此插件可让您将colorAxis添加到图例:

Currently to show a basic legend with colorAxis, you need to add some code to Highcharts core. This plugin below allows you to add colorAxis to a legend if showInLegend property is set to false:

(function(H) {
    H.addEvent(H.Legend, 'afterGetAllItems', function(e) {
        var colorAxisItems = [],
            colorAxis = this.chart.colorAxis[0],
            i;

        if (colorAxis && colorAxis.options) {
            if (colorAxis.options.dataClasses) {
                colorAxisItems = colorAxis.getDataClassLegendSymbols();
            } else {
                colorAxisItems.push(colorAxis);
            }
        }

        i = colorAxisItems.length;
        while (i--) {
            e.allItems.unshift(colorAxisItems[i]);
        }
    });
}(Highcharts))

---

实时演示: http://jsfiddle.net/BlackLabel/hs1zeruy/

API参考: https://api.highcharts.com/highcharts/colorAxis.showInLegend

文档: https://www.highcharts.com/docs/extending-highcharts

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