<!doctype html>
<html>
<head>
<title>Bar Chart Zoom</title>
<script src="../../Chart.bundle.js"></script>
<script src="../node_modules/hammerjs/hammer.min.js"></script>
<script src="../chartjs-plugin-zoom.js"></script>
<style>
canvas {
-moz-user-select: none;
-webkit-user-select: none;
-ms-user-select: none;
}
</style>
</head>
<body>
<div id="container" style="width: 75%;">
<canvas id="canvas"></canvas>
</div>
<script>
var MONTHS = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];
var randomScalingFactor = function() {
return (Math.random() > 0.5 ? 1.0 : -1.0) * Math.round(Math.random() * 100);
};
var randomColorFactor = function() {
return Math.round(Math.random() * 255);
};
var randomColor = function() {
return 'rgba(' + randomColorFactor() + ',' + randomColorFactor() + ',' + randomColorFactor() + ',.7)';
};
var barChartData = {
labels: ["January-16", "February-16", "March-16", "April-16", "May-16", "June-16", "July-16", "August-16", "September-16", "October-16", "November-16", "December-16", "January-17", "February-17", "March-17", "April-17", "May-17", "June-17", "July-17", "August-17", "September-17", "October-17", "November-17", "December-17"],
datasets: [{
label: 'Dataset 1',
backgroundColor: "rgba(220,220,220,0.5)",
data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()]
}, {
hidden: false,
label: 'Dataset 2',
backgroundColor: "rgba(255,187,205,1)",
data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()]
}, {
label: 'Dataset 3',
backgroundColor: "rgba(151,187,205,0.5)",
data: [randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor(), randomScalingFactor()]
}]
};
window.onload = function() {
var ctx = document.getElementById("canvas").getContext("2d");
window.myBar = new Chart(ctx, {
type: 'bar',
data: barChartData,
options: {
// Elements options apply to all of the options unless overridden in a dataset
// In this case, we are setting the border of each bar to be 2px wide and green
elements: {
rectangle: {
borderWidth: 2,
borderColor: 'rgb(0, 255, 0)',
borderSkipped: 'bottom'
}
},
responsive: true,
legend: {
position: 'top',
},
title: {
display: true,
text: 'Chart.js Bar Chart'
},
pan: {
enabled: true,
mode: 'xy' // is panning about the y axis neccessary for bar charts?
},
zoom: {
enabled: true,
mode: 'x',
sensitivity: 3,
limits: {
max: 10,
min: 0.5
}
}
}
});
};
</script>
</body>
</html>