JSFiddle - React, Tailwind, and code Playground
HTML
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.8.0/Chart.min.js"></script>
<div id="canvas-holder" style="width:50%">
<canvas id="chart-area"></canvas>
</div>
<button id="randomizeData">Randomize Data</button>
<button id="addData">Add Data</button>
<button id="removeData">Remove Data</button>
JavaScript
var angles = [Math.PI, Math.PI/6, Math.PI/6, Math.PI/2, Math.PI/6];
window.chartColors = {
red: 'rgb(255, 99, 132)',
orange: 'rgb(255, 159, 64)',
yellow: 'rgb(255, 205, 86)',
green: 'rgb(75, 192, 192)',
blue: 'rgb(54, 162, 235)',
purple: 'rgb(153, 102, 255)',
grey: 'rgb(201, 203, 207)'
};
var randomScalingFactor = function() {
return Math.round(Math.random() * 100);
};
var chartColors = window.chartColors;
var color = Chart.helpers.color;
var config = {
data: {
datasets: [{
data: [
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
],
backgroundColor: [
color(chartColors.red).alpha(0.5).rgbString(),
color(chartColors.orange).alpha(0.5).rgbString(),
color(chartColors.yellow).alpha(0.5).rgbString(),
color(chartColors.green).alpha(0.5).rgbString(),
color(chartColors.blue).alpha(0.5).rgbString(),
],
label: 'My dataset' // for legend
}],
labels: [
'Red',
'Orange',
'Yellow',
'Green',
'Blue'
]
},
options: {
"elements": {
"arc": {
"angle": angles
}
},
responsive: true,
legend: {
position: 'right',
},
title: {
display: true,
text: 'Chart.js Polar Area Chart'
},
scale: {
ticks: {
beginAtZero: true
},
reverse: false
},
animation: {
animateRotate: false,
animateScale: true
}
}
};
//window.onload = function() {
var ctx = document.getElementById('chart-area');
window.myPolarArea = Chart.PolarArea(ctx, config);
//};
document.getElementById('randomizeData').addEventListener('click', function() {
config.data.datasets.forEach(function(piece, i) {
piece.data.forEach(function(value, j) {
config.data.datasets[i].data[j] =...