javascript - C3.js 条形图 : setting X axis labels

Question

我必须用两个数据集绘制一个条形图，并且我想用文本标记每个数据集(在 X 轴上)。下面的代码产生:

可以看出，标签是自动生成的，即 0 和 1(以黄色突出显示)。但我想将 0 和 1 更改为两个文本值，例如 P1 和 P2。

var chart = c3.generate({
  bindto: '#bar',
  data: {
    columns: [
      ['A1', 30, 200],
      ['A2', 130, 100],
      ['A3', 12, 59],
      ['A4', 42, 25],
      ['A5', 76, 84],
      ['A6', 83, 14],
      ['A7', 54, 87],
      ['A8', 110, 40],
      ['A9', 34, 48]
    ],
    type: 'bar'
  },
  bar: {
    width: {
      ratio: 0.5
    }
  }
});

<script src="http://cdnjs.cloudflare.com/ajax/libs/d3/3.4.11/d3.min.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/c3/0.3.0/c3.min.js"></script>
<link href="http://cdnjs.cloudflare.com/ajax/libs/c3/0.3.0/c3.css" rel="stylesheet"/>

<div id="bar">
</div>

到目前为止，我找不到分配 X 轴标签的方法...

Answer 1

在代码中添加轴选项

var chart = c3.generate({
  bindto: '#bar',
  data: {
    columns: [
      ['A1', 30, 200],
      ['A2', 130, 100],
      ['A3', 12, 59],
      ['A4', 42, 25],
      ['A5', 76, 84],
      ['A6', 83, 14],
      ['A7', 54, 87],
      ['A8', 110, 40],
      ['A9', 34, 48]
    ],
    type: 'bar'
  },
  bar: {
    width: {
      ratio: 0.5
    }
  },
  axis: {
    x: {
      type: 'category',
      categories: ['cat1', 'cat2']
    }
  }
});

<script src="http://cdnjs.cloudflare.com/ajax/libs/d3/3.4.11/d3.min.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/c3/0.3.0/c3.min.js"></script>
<link href="http://cdnjs.cloudflare.com/ajax/libs/c3/0.3.0/c3.css" rel="stylesheet" />

<div id="bar">
</div>