Below are some examples on how to create charts using Chart.js
For info. on how to obtain the latest Chart.js, please refer to the link below.
http://stackoverflow.com/documentation/chart.js/4274/getting-started-with-chart-js#t=201703251048525532779Bar Chart Sample CodeNote, the code below uses the CDN version of Chart.js. 1
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43 | <!DOCTYPE html>
<html>
<head>
<!-- For latest CDN version of Chart.js, visit https://cdnjs.com/libraries/Chart.js -->
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.5.0/Chart.bundle.js"></script>
</head>
<body>
<canvas id="myChart" width="400" height="250"></canvas>
<script>
var canvas = document.getElementById('myChart');
var data = {
labels: ["January", "February", "March", "April", "May", "June", "July"],
datasets: [
{
label: "My First dataset",
backgroundColor: "rgba(255,99,132,0.2)",
borderColor: "rgba(255,99,132,1)",
borderWidth: 2,
hoverBackgroundColor: "rgba(255,99,132,0.4)",
hoverBorderColor: "rgba(255,99,132,1)",
data: [65, 59, 30, 81, 56, 55, 40],
}
]
};
var option = {
animation: {
duration:5000
},
//responsive: false
};
var myBarChart = Chart.Bar(canvas,{
data:data,
options:option
});
</script>
</body>
</html>
|
Note that the size of the chart is beyond the width and height specified in
<canvas id="myChart" width="400" height="250"></canvas>. The solution is to add
responsive: false in the option field (see below pic).
ResultThe chart is now responding to the width and height parameters.
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Below is another example.
Code
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28 | <!DOCTYPE html>
<html>
<head>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.5.0/Chart.bundle.js"></script>
</head>
<body>
<canvas id="myChart" width="400" height="200"></canvas>
<script>
var ctx = document.getElementById("myChart");
var myChart = new Chart(ctx, {
type: 'bar',
data: {
labels: ["Group 1", "Group 2", "Group 3"],
datasets: [{
label: 'Groups',
data: [12, 19, 3]
}]
},
options: {
responsive: false
}
});
</script>
</body>
</html>
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Result
References:
Chart.jsCreating Beautiful Charts with Chart.js
https://www.sitepoint.com/creating-beautiful-charts-chart-js/An Introduction to Chart.js 2.0 — Six Simple Examples
https://www.sitepoint.com/introduction-chart-js-2-0-six-examples/Getting started with chart.js
http://stackoverflow.com/documentation/chart.js/4274/getting-started-with-chart-js#t=201703251048525532779CDNJS Version of Chart.js
https://cdnjs.com/libraries/Chart.jsc3.jsHow to Create Website Graphs from CSV Files with c3.js and PapaParse
https://youtu.be/1OK4TJfCzdY
