如何对齐Chart.js 2中的图例项？

Question

我只需要对齐图表图例,使它看起来不像默认显示那样杂乱,这里是我想要实现的一个例子:

请提供一些代码建议:https://jsfiddle.net/holp/68wf75r8/

new Chart(document.getElementById("field-0"), {
  type: 'pie',
  data: {
    labels: ["Chat", "Prospeção", "Whatsapp", "Trial", "Site", "Telefone", "E-mail", "Evento"],
    datasets: [{
      data: [700, 400, 200, 150, 80, 50, 20, 10],
      borderWidth: 2,
      hoverBorderWidth: 10,
      backgroundColor: pieColors,
      hoverBackgroundColor: pieColors,
      hoverBorderColor: pieColors,
      borderColor: pieColors
    }]
  },
  options: {
    legend: {
      labels: {
        padding: 20
      }
    }
  }
});

Answer 1

有legend.labels.generateLabels钩你通常可以使用自定义您的图例标签.我发现,你可以把下面这样的东西调整成Chart.js计算.

generateLabels:  function (chart) {
    chart.legend.afterFit = function () {
      var width = this.width; // guess you can play with this value to achieve needed layout
      this.lineWidths = this.lineWidths.map(function(){return width;});

    };
    // here goes original or customized code of your generateLabels callback
}

奇怪的是,没有实际的配置选项来实现这一点.