Javascript 向图表js饼图添加标签

我正在使用chart.js添加饼图。我可以显示图表，但希望显示标签、百分比和图例

有人知道怎么做吗

下面是我如何生成饼图的：

dashboardRegion: (survey) ->
      male = 0
      female = 0
      survey.get('responses').each (response) ->
        if response.get('completed')
          if response.get('gender') == "male"
            male += 1
          else
            female += 1 

      genderData = [
        {
            value: male,
            color:"#9A3334",
            highlight: "#9A3334",
            label: "Male",
            labelFontFamily : "Arial",
            labelFontStyle : "normal",
            labelFontSize : 24,
            labelFontColor : "#666"
        },
        {
            value: female,
            color: "#217C7E",
            highlight: "#217C7E",
            label: "Female",
            labelFontFamily : "Arial",
            labelFontStyle : "normal",
            labelFontSize : 24,
            labelFontColor : "#666"
        }

      ];

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添加此项似乎可以实现显示标签的技巧-