Overview

Greatly adaptive Chart.js plugin that provides proper text centering within Doughnut Chart, even if additional options (for example: legend) are included.

Requires Chart.js 3.x.

Installation

npm i chartjs-plugin-center-text-doughnut

Usage

import ChartDoughnutCenterTextPlugin from 'chartjs-plugin-center-text-doughnut';

Once imported, the plugin needs to be registered.

var chart = new Chart(ctx, {
  plugins: [ChartDoughnutCenterTextPlugin],
  options: {
    // ...
  }
})

The plugin options can be changed in order to customize text and its style.

new Chart(ctx, {
  plugins: [
    // ... other plugins
    ChartDoughnutCenterTextPlugin
  ],
  options: {
    // ... other options
    plugins: {
      doughnutCenterText: {
        text: "Test",
        color: '#FF0000',
        font: {
          family: 'Arial',
          size: '14px',
          weight: 700,
          style: 'italic', 
          variant: 'small-caps',
        }
      }
    }
  }
});

Development

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

npm install

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

npm run build            // build dist files
npm run build:dev        // build and watch for changes

License

chartjs-plugin-center-text-doughnut is available under the MIT license.