Chartjs Nested Pie/Doughnut charts

Chart.js makes some awesome looking charts and it's been working really well for me up until now. I'm wanting to create something like this:

nested doughnut chart

Is it possible?

Answers:

Answer

This is possible as of version 2.0 of Chart.js, I think. Here's an example:

var ctx = document.getElementById("myChart");
var chartData = {
  labels: [
    "Red",
    "Blue",
    "Yellow"
  ],
  datasets: [{
    data: [300, 50, 100],
    backgroundColor: [
      "#FF6384",
      "#36A2EB",
      "#FFCE56"
    ],
    hoverBackgroundColor: [
      "#FF6384",
      "#36A2EB",
      "#FFCE56"
    ]
  }, {
    data: [200, 100, 25, 25, 66, 34],
    backgroundColor: [
      "#FF6384",
      "#36A2EB",
      "#FFCE56",
      "#FF6384",
      "#36A2EB",
      "#FFCE56"
    ],
    hoverBackgroundColor: [
      "#FF6384",
      "#36A2EB",
      "#FFCE56",
      "#FF6384",
      "#36A2EB",
      "#FFCE56"
    ]
  }]
};
var pieChart = new Chart(ctx, {
  type: 'pie',
  data: chartData
})
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.3.0/Chart.min.js"></script>

<canvas id="myChart" width="300" height="300"></canvas>

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