谷歌图表：如何换行图例标签

Question

我有一个使用Google Charts开发的饼图，但是由于传说标签太长，导致传说标签跨越多行显示。由于我的数据动态变化，我想知道是否提供了一个属性来调整传说的宽度。

请查看js fiddle：https://jsfiddle.net/ak8wqt6f/

  google.charts.load('current', {'packages':['corechart']});
  google.charts.setOnLoadCallback(drawChart);
  function drawChart() {

    var data = google.visualization.arrayToDataTable([
      ['Task', 'Hours per Day'],
      ['Work, some text related to work',     11],
      ['Eat, some text related to eat',      2],
      ['Commute, some text related to commute',  2],
      ['Watch TV, some text related to watch tv', 2],
      ['Sleep, some text related to sleep',    7]
    ]);

    var options = {
      title: 'My Daily Activities',
      legend: {
      position: 'right',
      alignment: 'center',
      width: 400,
      floating: true
      },
                chartArea: {
      left: -100,
      width: 450
      }
    };

    var chart = new google.visualization.PieChart(document.getElementById('piechart'));

    chart.draw(data, options);
  }

有人能帮我把每个图例标签分行吗？

谢谢, Farhan

- Farhan

Answer 1

这个问题是由一名谷歌员工在Google Groups上回答的。他建议更改chartArea选项。他还提供了更新的JSfiddle示例。

- Tim