chart.js
Version:
Simple HTML5 charts using the canvas element.
110 lines (101 loc) • 3.39 kB
HTML
<html>
<head>
<title>Radar Chart</title>
<script src="../../dist/Chart.bundle.js"></script>
<script src="../utils.js"></script>
<style>
canvas {
-moz-user-select: none;
-webkit-user-select: none;
-ms-user-select: none;
}
</style>
</head>
<body>
<div style="width:40%">
<canvas id="canvas"></canvas>
</div>
<button id="randomizeData">Randomize Data</button>
<script>
var randomScalingFactor = function() {
return Math.round(Math.random() * 100);
};
var color = Chart.helpers.color;
var config = {
type: 'radar',
data: {
labels: ["Eating", "Drinking", "Sleeping", "Designing", "Coding", "Cycling", "Running"],
datasets: [{
label: "Skip first dataset",
borderColor: window.chartColors.red,
backgroundColor: color(window.chartColors.red).alpha(0.2).rgbString(),
pointBackgroundColor: window.chartColors.red,
data: [
NaN,
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor()
]
}, {
label: "Skip mid dataset",
borderColor: window.chartColors.blue,
backgroundColor: color(window.chartColors.blue).alpha(0.2).rgbString(),
pointBackgroundColor: window.chartColors.blue,
data: [
randomScalingFactor(),
randomScalingFactor(),
NaN,
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor()
]
},{
label: "Skip last dataset",
borderColor: window.chartColors.green,
backgroundColor: color(window.chartColors.green).alpha(0.2).rgbString(),
pointBackgroundColor: window.chartColors.green,
data: [
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
NaN
]
}]
},
options: {
title:{
display:true,
text:"Chart.js Radar Chart - Skip Points"
},
elements: {
line: {
tension: 0.0,
}
},
scale: {
beginAtZero: true,
}
}
};
window.onload = function() {
window.myRadar = new Chart(document.getElementById("canvas"), config);
};
document.getElementById('randomizeData').addEventListener('click', function() {
config.data.datasets.forEach(function(dataset) {
dataset.data = dataset.data.map(function() {
return randomScalingFactor();
});
});
window.myRadar.update();
});
</script>
</body>
</html>