Real-Time Chart

28 Jun 2017 / 3 minutes to read

Chart can be updated dynamically with the real time data. Whenever you add a point or remove a point from the dataSource, you can call the redraw method to request the chart to redraw its content.


You can get the chart instance using instance method.

  • html
  • <html xmlns="" lang="en" ng-app="ChartApp">
            <title>Essential Studio for AngularJS: Chart</title>
            <!--CSS and Script file References -->
        <body ng-controller="ChartCtrl">
            <div id="container" ej-chart >
            <e-series ></e-series>
            var duration;
            angular.module('ChartApp', ['ejangular'])
            .controller('ChartCtrl', function ($scope) {
            duration=window.setInterval(update, 100);  
            function updateChart(){
            //Creating chart instance
            var chart =  $("#chartcontainer").ejChart("instance");      
            if (chart.model.series[0].points.length > 10)
                   chart.model.series[0].points.splice(0, 1);
            var point = chart.model.series[0].points;
            var xValue = point.length > 0 ? point[point.length - 1].x + 1 : 1;
            point[point.length] = { x:  xValue, y: getRandomNum( 1000 ) }  
            //Update Chart dynamically using redraw option
            //chart.redraw() can also be used here instead of redraw option

    Click here to view the online demo sample for real-time Chart.