Chart.js is not respecting my container dimensions

Question

I'm trying to create a line chart using the Chart.js library. I've got a div with dimensions 600px wide by 250px height, and from what I've read the library is meant to create a line chart using these parent dimensions.

The following shows my HTML element:

<div style="width:600px;height:250px">
    <canvas id="myChart"></canvas>
</div>

This is the code I'm using:

$(document).ready(function(){
     var data = {
                    labels: ["January", "February", "March", "April", "May", "June", "July"],
                    datasets: [
                        {
                            label: "My First dataset",
                            fillColor: "rgba(220,220,220,0.2)",
                            strokeColor: "rgba(220,220,220,1)",
                            pointColor: "rgba(220,220,220,1)",
                            pointStrokeColor: "#fff",
                            pointHighlightFill: "#fff",
                            pointHighlightStroke: "rgba(220,220,220,1)",
                            data: [65, 59, 80, 81, 56, 55, 40]
                        },
                        {
                            label: "My Second dataset",
                            fillColor: "rgba(151,187,205,0.2)",
                            strokeColor: "rgba(151,187,205,1)",
                            pointColor: "rgba(151,187,205,1)",
                            pointStrokeColor: "#fff",
                            pointHighlightFill: "#fff",
                            pointHighlightStroke: "rgba(151,187,205,1)",
                            data: [28, 48, 40, 19, 86, 27, 90]
                        }
                    ]
                };
                var ctx = $("#myChart").get(0).getContext("2d");
                new Chart(ctx).Line(data, {
                    responsive:true
                });
});

And this shows the issue I'm having in jsfiddle: https://jsfiddle.net/Lr88htnp/ (Note that the rendered chart has dimensions of 600x300)

Solution 1

You need to set the option maintainAspectRatio to false

....
new Chart(ctx).Line(data, {
    responsive:true,
    maintainAspectRatio: false
});

---

Fiddle - https://jsfiddle.net/3cxeyLc8/

Solution 2

Add the following CSS to #myChart:

 <canvas id="myChart" style="width:100%;height:100%;"></canvas>

Solution 3

Setting width and height 100% work for me

<LineChart :chart-data="chartData1" :options="options" style="width: 100%; height: 100%" />

Comments

[A Friend]

this is now an outdated way to create charts as of chart.js version 2

[Eta]

Ahhh finally, nearly a dozen of topics and no one mentioned this aspect ratio. Good job !

[bvdb]

@AFriend maybe so, but the maintainAspectRatio option is still available, and fixes the problem.