Chartjs doughnut chart for conditional data - Javascript Chart.js

Javascript examples for Chart.js:Doughnut Chart

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Description

Chartjs doughnut chart for conditional data

Demo Code

ResultView the demo in separate window 

<html>
   <head> 
      <meta name="viewport" content="width=device-width, initial-scale=1"> 
      <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.7.2/Chart.min.js"></script> 
      <script type="text/javascript" src="https://chartjs-plugin-datalabels.netlify.com/chartjs-plugin-datalabels.js"></script> 
      <script type="text/javascript">
    window.onload=function(){/*  ww  w  .  j  a va2  s . c  o  m*/
function drawPieChart(value, maxValue) {
  var ctx = document.getElementById("myChart").getContext('2d');
  var myChart = new Chart(ctx, {
    type: 'doughnut',
    data: {
      labels: ["Consumed"],
      datasets: [{
        data: [value, maxValue - value],
        backgroundColor: ['green', 'red'],
      }]
    },
    options: {
      tooltips: {
        enabled: false,
      },
      plugins: {
        datalabels: {
          backgroundColor: function(context) {
            return context.dataset.backgroundColor;
          },
          display: function(context) {
            var dataset = context.dataset;
            var value = dataset.data[context.dataIndex];
            return value > 0;
          },
          color: 'white'
        }
      }
    }
  });
}
drawPieChart(5000, 5000);
    }

      </script> 
   </head> 
   <body> 
      <canvas id="myChart" width="400" height="200"></canvas>  
   </body>
</html>

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