ABPCMS.Web/lib/chart.js/samples/charts/pie.html

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<!doctype html>
<html>

<head>
    <title>Pie Chart</title>
    <script src="../../dist/Chart.bundle.js"></script>
    <script src="../utils.js"></script>
</head>

<body>
    <div id="canvas-holder" style="width:40%">
        <canvas id="chart-area" />
    </div>
    <button id="randomizeData">Randomize Data</button>
    <button id="addDataset">Add Dataset</button>
    <button id="removeDataset">Remove Dataset</button>
    <script>
    var randomScalingFactor = function() {
        return Math.round(Math.random() * 100);
    };

    var config = {
        type: 'pie',
        data: {
            datasets: [{
                data: [
                    randomScalingFactor(),
                    randomScalingFactor(),
                    randomScalingFactor(),
                    randomScalingFactor(),
                    randomScalingFactor(),
                ],
                backgroundColor: [
                    window.chartColors.red,
                    window.chartColors.orange,
                    window.chartColors.yellow,
                    window.chartColors.green,
                    window.chartColors.blue,
                ],
                label: 'Dataset 1'
            }],
            labels: [
                "Red",
                "Orange",
                "Yellow",
                "Green",
                "Blue"
            ]
        },
        options: {
            responsive: true
        }
    };

    window.onload = function() {
        var ctx = document.getElementById("chart-area").getContext("2d");
        window.myPie = new Chart(ctx, config);
    };

    document.getElementById('randomizeData').addEventListener('click', function() {