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Legends to Line Graph?

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  • July 21, 2016 at 2:54 am #11586

    sss04

    Hi!
    I tried looking for examples to this, but being new to Canvas.js, could find none.
    How would I add a legend to this line graph? 

    <!DOCTYPE HTML>
<html>

<head>  
<script type="text/javascript">
window.onload = function () {
	var chart = new CanvasJS.Chart("chartContainer",
	{
		zoomEnabled: true,
		panEnabled: true, 
		title:{
			text: "Try Zooming and Panning" 
		},
		legend: {
			horizontalAlign: "right",
			verticalAlign: "center"        
		},
		axisY:{
			includeZero: false
		},
		data: data,  // random generator below
    });
	chart.render();
}

	var limit = 1000;    //increase number of dataPoints by increasing this

	var y = 0;
	var data = []; var dataSeries = { type: "line" };
	var dataPoints = [];
	for (var i = 0; i < limit; i += 1) {
		y += (Math.random() * 10 - 5);
		dataPoints.push({
			x: i - limit / 2,
			y: y                
		});
	}
	dataSeries.dataPoints = dataPoints;
	data.push(dataSeries);   
	
</script>
<script type="text/javascript" src="https://cdn.canvasjs.com/canvasjs.min.js"></script>
</head>
<body>
<div id="chartContainer" style="height: 300px; width: 100%;">
</div>
</body>
  

</html>

    Thanks!

    July 21, 2016 at 10:55 am #11588

    Vishwas R

    You need to set showInLegend: true to enable legends, which defaults to false. Here is the working jsfiddle.

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