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Showing content from https://github.com/ciprianciurea/chartjs-plugin-doughnutlabel below:

ciprianciurea/chartjs-plugin-doughnutlabel: Chart.js plugin for doughnut chart to display text in the center

Chart.js plugin module that allows to display multiple lines of text centered in the middle area of the doughnut charts

Have a look at the Demo page.

• Installation
• Usage example
• Development
• License

Install through npm:

npm install --save chartjs-plugin-doughnutlabel

var myDoughnutChart = new Chart(ctx, {
  type: 'doughnut',
  data: data,
  options: {
    plugins: {
      doughnutlabel: {
        labels: [
          {
            text: 'The title',
            font: {
              size: '60'
            }
          },
          {
            text: getTotal,
            font: {
              size: '50'
            },
            color: 'grey'
          },
          {
            text: '$100.000',
            font: {
              size: '30'
            },
            color: 'red'
          },
          {
            text: '95%',
            font: {
              size: '45'
            },
          color: 'green'
          }
        ]
      }
    }		
  }
});

var getTotal = function(myDoughnutChart) {
	var sum = myDoughnutChart.config.data.datasets[0].data.reduce((a, b) => a + b, 0);
	return `Total: ${sum}`;
}

The plugin can be manually downloaded from the Releases page on GitHub!

<script src="chartjs-plugin-doughnutlabel.js"></script>

or use the minified version

<script src="chartjs-plugin-doughnutlabel.min.js"></script>

You first need to install node dependencies (requires Node.js):

The following commands will then be available from the repository root:

> gulp lint             // perform code linting
> gulp build            // build dist files
> gulp build --watch    // build and watch for changes
> gulp package          // create an archive with dist files and samples

For an example on how to use this plugin with angular, please check this stackblitz prototype: doughnutlabel plugin in angular

chartjs-plugin-doughnutlabel is available under the MIT license.

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