stacked bar ordering depending on value - Javascript Chart.js

Javascript examples for Chart.js:Bar Chart

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Description

stacked bar ordering depending on value

Demo Code

ResultView the demo in separate window 

<html>
   <head> 
      <meta name="viewport" content="width=device-width, initial-scale=1"> 
      <script type="text/javascript">
    window.onload=function(){//from w  ww .j  a  v  a2  s  .  com
Chart.plugins.register({
   datasets: [],
   getData(labels, datasets) {
      const sum = [];
      for (i = 0; i < datasets[0].length; i++) {
         sum.push({
            label: labels[i],
            data: datasets.map(e => e[i]),
            get sum() { // ES6 - getter
               return this.data.reduce((a, b) => a + b);
            }
         });
      }
      return sum;
   },
   beforeInit(chart) {
      chart.data.datasets.forEach((dataset, datasetIndex) => {
         this.datasets.push(dataset.data);
      });
      const data_store = this.getData(chart.data.labels, this.datasets),
            sorted = data_store.map(e => e.sum).sort((a, b) => b - a);
      sorted.forEach((n, ni) => {
         data_store.forEach(d => {
            if (d.sum === n) {
               chart.data.labels[ni] = d.label;
               d.data.forEach((v, vi) => {
                  chart.data.datasets[vi].data[ni] = v;
               });
            }
         });
      });
   }
});
var numberWithCommas = function(x) {
   return x.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");
};
var dataPack1 = [21000, 22000, 26000, 35000, 55000, 55000, 56000, 59000, 60000];
var dataPack2 = [1000, 1200, 1300, 140000, 1060, 2030, 2070, 4000, 4100];
var stores = ["A", "B", "C", "D", "E", "F", "G", "H", "I"];
var bar_ctx = document.getElementById('bar-chart');
var bar_chart = new Chart(bar_ctx, {
   type: 'bar',
   data: {
      labels: stores,
      datasets: [{
         label: 'Rev',
         data: dataPack1,
         backgroundColor: "rgba(55, 160, 225, 0.7)",
         hoverBackgroundColor: "rgba(55, 160, 225, 0.7)",
         hoverBorderWidth: 2,
         hoverBorderColor: 'lightgrey'
      }, {
         label: 'Tax1',
         data: dataPack2,
         backgroundColor: "rgba(225, 58, 55, 0.7)",
         hoverBackgroundColor: "rgba(225, 58, 55, 0.7)",
         hoverBorderWidth: 2,
         hoverBorderColor: 'lightgrey'
      }]
   },
   options: {
      animation: {
         duration: 10,
      },
      tooltips: {
         mode: 'label',
         callbacks: {
            label: function(tooltipItem, data) {
               return data.datasets[tooltipItem.datasetIndex].label + ": " + numberWithCommas(tooltipItem.yLabel);
            }
         }
      },
      scales: {
         xAxes: [{
            stacked: true,
            gridLines: {
               display: false
            },
         }],
         yAxes: [{
            stacked: true,
            ticks: {
               callback: function(value) {
                  return numberWithCommas(value);
               },
            },
         }],
      },
      legend: {
         display: true
      }
   }
});
    }

      </script> 
   </head> 
   <body> 
      <script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.1.6/Chart.min.js"></script> 
      <canvas id="bar-chart" width="600" height="350"></canvas>  
   </body>
</html>

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