如何在Chart.js 2.1.6中的图例中显示条形标签? [英] How to show bar labels in legend in Chart.js 2.1.6?

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问题描述

我正在使用Chart.js创建图表,并且想显示图例中条形的标签,不是数据集的标题(只有一个),请参见以下内容图片为例:





我当前的图例看起来像这样:



我浏览了文档,但无济于事,实际上发现它们很混乱。 / p>

这是我当前的代码:

  var chart_0 = new Chart( $('#cp_chart_0'),{
类型:'bar'
,数据:{
标签:['Blue','Green','Yellow','Red',' Purple','Orange']
,数据集:[{
标签:'Dataset 1'
,borderWidth:0
,backgroundColor:['#2C79C5','#7FA830','#7B57C3','#ED4D40','#EC802F','#1DC6D3']
,数据:[ '12','2','5','0','9','1']
}]
}
});

谢谢!

解决方案

最简单的方法是为您的数据提供多个集合:

 数据:{
标签: ['总投票']
,数据集:[{
标签:'Blue'
,backgroundColor:['#2C79C5']
,数据:['12']
},{
标签:'Green'
,backgroundColor:['#7FA830']
,数据:['2']
},
...
]
}

但是您可以使用以下方法生成自定义标签 generateLabels - http:/ /www.chartjs.org/docs/#chart-configuration-legend-configuration



甚至可以使用<$ c自定义整个图例,包括格式$ c> legendCallback - http:// www.ch artjs.org/docs/#chart-configuration-common-chart-configuration


I'm creating charts using Chart.js and I want to show the labels for the bars in the legend, not the title of the dataset (there is only one), please see the below image as an example:

My current legend just looks like this:

I have looked through the docs but to no avail, I found them very confusing actually.

Here is my current code:

var chart_0 = new Chart($('#cp_chart_0'), {
      type: 'bar'
    , data: {
          labels: ['Blue','Green','Yellow','Red','Purple','Orange']
        , datasets: [{
              label: 'Dataset 1'
            , borderWidth: 0
            , backgroundColor: ['#2C79C5','#7FA830','#7B57C3','#ED4D40','#EC802F','#1DC6D3']
            , data: ['12','2','5','0','9','1']
        }]
      }
});

Thanks!

解决方案

Easiest way is to provide your data with multiple sets :

  data: {
      labels: ['total votes']
    , datasets: [{
          label: 'Blue'
        , backgroundColor: ['#2C79C5']
        , data: ['12']
    },{
          label: 'Green'
        , backgroundColor: ['#7FA830']
        , data: ['2']
    },
    ...
    ]
  }

But you can generate a custom labels using generateLabels - http://www.chartjs.org/docs/#chart-configuration-legend-configuration

Or even customise the whole legend, including formatting, with legendCallback - http://www.chartjs.org/docs/#chart-configuration-common-chart-configuration

这篇关于如何在Chart.js 2.1.6中的图例中显示条形标签?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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