CODEWITHSUNDEEP
javascriptchart.js
plexer
plexer

Reputation: 4622

ChartJS 'Hello World' not animating

I've been trying to get the ChartJS example from http://www.chartjs.org/docs/latest/ working, but I'm running into two unexpected issues:

  1. The graph is not animating
  2. The graph is huge (it seems to be ignoring the height/width properties on the canvas element).

Snippet (copied from the documentation) is here: https://codepen.io/anon/pen/KmOQoj

<html>
<head>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.6.0/Chart.js">
</script>
<script>
function load() {
var ctx = document.getElementById("myChart").getContext('2d');
var myChart = new Chart(ctx, {
    type: 'bar',
    data: {
        labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
        datasets: [{
            label: '# of Votes',
            data: [12, 19, 3, 5, 2, 3],
            backgroundColor: [
                'rgba(255, 99, 132, 0.2)',
                'rgba(54, 162, 235, 0.2)',
                'rgba(255, 206, 86, 0.2)',
                'rgba(75, 192, 192, 0.2)',
                'rgba(153, 102, 255, 0.2)',
                'rgba(255, 159, 64, 0.2)'
            ],
            borderColor: [
                'rgba(255,99,132,1)',
                'rgba(54, 162, 235, 1)',
                'rgba(255, 206, 86, 1)',
                'rgba(75, 192, 192, 1)',
                'rgba(153, 102, 255, 1)',
                'rgba(255, 159, 64, 1)'
            ],
            borderWidth: 1
        }]
    },
    options: {
        scales: {
            yAxes: [{
                ticks: {
                    beginAtZero:true
                }
            }]
        }
    }
});
}
</script>
</head>
<body onload="load()">
    <canvas id="myChart" width="400" height="400"></canvas>
</body>
</html>

Upvotes: 0

Views: 3598

Answers (1)

Dinesh undefined
Dinesh undefined

Reputation: 5546

here is working code

keep canvas inside div and set height and width for div and make chart as responsive

function load() {
    var ctx = document.getElementById("myChart").getContext('2d');
    var myChart = new Chart(ctx, {
        type: 'bar',
      responsive:true,
    maintainAspectRatio: false,
        data: {
            labels: ["Red", "Blue", "Yellow", "Green", "Purple", "Orange"],
            datasets: [{
                label: '# of Votes',
                data: [12, 19, 3, 5, 2, 3],
                backgroundColor: [
                    'rgba(255, 99, 132, 0.2)',
                    'rgba(54, 162, 235, 0.2)',
                    'rgba(255, 206, 86, 0.2)',
                    'rgba(75, 192, 192, 0.2)',
                    'rgba(153, 102, 255, 0.2)',
                    'rgba(255, 159, 64, 0.2)'
                ],
                borderColor: [
                    'rgba(255,99,132,1)',
                    'rgba(54, 162, 235, 1)',
                    'rgba(255, 206, 86, 1)',
                    'rgba(75, 192, 192, 1)',
                    'rgba(153, 102, 255, 1)',
                    'rgba(255, 159, 64, 1)'
                ],
                borderWidth: 1
            }]
        },
        options: {
            scales: {
                yAxes: [{
                    ticks: {
                        beginAtZero:false
                    }
                }]
            }
        }
    });
}
<html>
<head>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.6.0/Chart.js"></script>
</head>
<body onload="load()">
  <div style="width:400px;height:400px">
<canvas id="myChart" width="400" height="400"></canvas>
  </div>
</body>
</html>

Upvotes: 3

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