javascript - 如何对齐 Chart.js 2 中的图例项？

Question

我只需要对齐Chart Legend，这样它看起来就不会像默认显示的那样太乱，下面是我想要实现的示例:

请给出一些代码建议: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

legend.labels.generateLabels Hook 通常可以用来自定义图例标签。我发现，您可以在下面放置类似的内容来调整 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。