Finding the area of individual Column on Click in Column Chart - CanvasJS JavaScript Charts

Finding the area of individual Column on Click in Column Chart - CanvasJS JavaScript Charts

by canvasjs

HTML

<script src="https://canvasjs.com/assets/script/canvasjs.min.js"></script>
<br/><!-- Just so that JSFiddle's Result label doesn't overlap the Chart -->
<div id="chartContainer" style="height: 360px; width: 100%;"></div>

JavaScript

var chart = new CanvasJS.Chart("chartContainer", {
	theme: "light2",
	title: {
  	text: "Fining the area of Column"
  },
  subtitles: [{
  	text: "Click on any column to console its area"
  }],
  data: [
    {
      type: "column",
      click: click,
      dataPoints: [
        { x: 10, y: 71 },
        { x: 20, y: 55 },
        { x: 30, y: 50 },
        { x: 40, y: 65 },
        { x: 50, y: 95 },
        { x: 60, y: 68 },
        { x: 70, y: 28 },
        { x: 80, y: 34 },
        { x: 90, y: 14 }
      ]
    }					
  ]
});

chart.render();

function click(e) {
  var height, width, area;
  height = e.dataPoint.y - Math.max(e.chart.axisY[0].minimum, 0); 
  width = e.chart.axisX[0].convertPixelToValue(e.chart.dataPointWidth);  
  area = Math.floor(width * height);
  console.log("Area of the Column: " + area);
}