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plotting two lines

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  • October 14, 2019 at 12:11 am #27106

    solidsandwich

    Hello,

    I am working on plotting to lines on a graph from a json file. Having an issue with plotting the second line.

    json sample: [[0, 69.8, 53.0], [1, 69.8, 53.0], [2, 69.8, 53.0], [3, 69.8, 53.0]]

    <!DOCTYPE HTML>
<html>
<head>
<script type="text/javascript" src="https://canvasjs.com/assets/script/jquery-1.11.1.min.js"></script>
<script type="text/javascript" src="https://canvasjs.com/assets/script/canvasjs.min.js"></script>
<script type="text/javascript">
window.onload = function () {
var dataPoints = [];
$.getJSON("data.json", function(data) {  
	$.each(data, function(key, value){
		dataPoints.push({x: value[0], y: parseInt(value[1])});
		dataPoints2.push({x: value[0], y: parseInt(value[2])});
	});
	var chart = new CanvasJS.Chart("chartContainer",{
		title:{
			text:"Plotting Temperature and Humidity"
		},
		data: [{
			type: "line",
			dataPoints : dataPoints,},	
			{
			type: "line",
			dataPoints : dataPoints2,
	
		}]
	});
	chart.render();
});
}
</script>

</head>
<body>
<div id="chartContainer" style="height: 300px; width: 100%;"></div>
</body>
</html>
    October 14, 2019 at 6:23 pm #27111

    Vishwas R

    @solidsandwich,

    There seems to be issue with variable declaration. Declaring dataPoints2 should work fine in this case. Please take a look at this JSFiddle for working code.

    From what we have observed, sometimes things get delayed mostly when we are not able to reproduce your use-case or not able to understand the exact requirements. Having a JSFiddle helps us in understanding your case better and many a times we can just edit your code on JSFiddle to fix the issue right-away. I request you to brief more along with JSFiddle with your use-case if you have further queries or facing any issue.

    —
    Vishwas R
    Team CanvasJS

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