图表js中饼图之间的填充

问题描述

我正在使用 chart.js 进行项目，我需要知道是否有办法在饼图的数据集之间添加一些空间.

I am working on a project using chart.js for work and I need to know if there is a way to add some space between datasets of a pie chart.

到目前为止，我在下面的图表中看到了，我希望内部和外部数据集之间有一些填充.

What I have so far is in the chart depicted below, and I want there to be some padding between the inner and outer datasets.

我尝试将其中一个图表设置为 doughnut 类型或在内部图表上添加更厚的外边框，但这些都不是我需要的.

I have tried setting one of the charts to a doughnut type or adding a thicker outer border on the inner chart, and neither of those are what I needed.

推荐答案

您可以通过在两个现有数据集之间添加一个空数据集并定义一个 weight 空数据集和内部数据集的属性.

You can obtain the desired result by adding an empty dataset between the two existing ones and defining a weight property on the empty and the inner dataset.

const colors = ["#FF6384", "#36A2EB", "#FFCE56"];
var pieChart = new Chart("myChart", {
  type: 'pie',
  data: {
    labels: ["Red", "Blue", "Yellow"],
    datasets: [{      
      data: [8, 5, 6],
      backgroundColor: colors,
    }, 
    { 
      weight: 0.2
    },
    { 
      data: [5, 7, 4],
      backgroundColor: colors,
      weight: 1.2
    }]
  }
})

<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.9.3/Chart.min.js"></script>
<canvas id="myChart"></canvas>

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