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Chart hangs with this code

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  • November 6, 2018 at 10:28 pm #23348

    bhaktaonline

    With the code below, the browser tab hangs, circling indefinitely.
    The issue appears to be the rendering of two data-points that are very close apart

    series1:
    dataPoints: [
    { x: 3.001084, y: 235 },
    ]

    series2:

    dataPoints: [
    { x: 2.991214, y: 234 },
    ]

    If I move the data points x of the series by 1 (increase or decrease), it works fine.. Looks like a bug?

    
<!DOCTYPE HTML>
<html>
<head>  
<script>
window.onload = function () {

var chart = new CanvasJS.Chart("chartContainer", {
    animationEnabled: true,
    zoomEnabled: true,
    theme: "light2",
    title:{
        text: 'Line chart that hangs',
        
    },
    legend: {
        cursor: "pointer",
        itemclick: function (e) {
            if (typeof (e.dataSeries.visible) === "undefined" || e.dataSeries.visible) {
                e.dataSeries.visible = false;
            } else {
                e.dataSeries.visible = true;
            }
            e.chart.render();
        }
    },
    axisX: {
        title: 'Time (secs)',
        
    },
    axisY:{
        title: 'Size (Bytes)',
        includeZero: false
    },
    
        data: [
        {
                    type: "line",
                    name: "144.0.0.2:49802",
                    showInLegend: true,
                    dataPoints: [
                        { x: 3.001084, y: 235 },
                    ]
        },
        {
                    type: "line",
                    name: "144.0.0.2:49804",
                    showInLegend: true,
                    dataPoints: [
                        { x: 2.991214, y: 234 },
                    ]
        },
        ]
    
});
chart.render();
}
</script>
</head>
<body>
<div id="chartContainer" style="height: 370px; width: 100%;"></div>
<script src="https://cdn.canvasjs.com/canvasjs.min.js"></script>
</body>
</html>
    November 6, 2018 at 10:34 pm #23349

    bhaktaonline

    try changing the 2.991214 to 2.591214 and the chart would load without an issue.

    November 8, 2018 at 11:28 am #23361

    Vishwas R

    @bhaktaonline,

    Thanks for reporting the use-case. We are looking into the issue and will get back to you at the earliest.

    —
    Vishwas R
    Team CanvasJS

    April 20, 2021 at 8:36 pm #34037

    ravidasari

    I am facing similar issue. Any update on the fix? In my case the multiple series are sharing same data. And I cannot control data and prefer not to manipulate it.

    • This reply was modified 4 years, 2 months ago by ravidasari.
    April 21, 2021 at 6:38 pm #34053

    Vishwas R

    @ravidasari,

    Sorry for the inconvenience caused. There seems to be issue with axis-range when there are less number of datapoints (1 datapoint in 2 dataseries in this case). As we were busy working on some other important features, we were unable to fix this. We will prioritize and fix it in future versions. Meantime you can get it worked by setting minimum & maximum manually. Please find the code-snippet below.

    Multiseries Line Chart with Axis Range

    Please take a look at this JSFiddle for complete code.

    —
    Vishwas R
    Team CanvasJS

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