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Current File : /var/www/html/news/public/bower_components/chart.js/samples/charts/line/basic.html

<!doctype html>
<html>

<head>
    <title>Line 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:75%;">
        <canvas id="canvas"></canvas>
    </div>
    <br>
    <br>
    <button id="randomizeData">Randomize Data</button>
    <button id="addDataset">Add Dataset</button>
    <button id="removeDataset">Remove Dataset</button>
    <button id="addData">Add Data</button>
    <button id="removeData">Remove Data</button>
    <script>
        var MONTHS = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];
        var config = {
            type: 'line',
            data: {
                labels: ["January", "February", "March", "April", "May", "June", "July"],
                datasets: [{
                    label: "My First dataset",
                    backgroundColor: window.chartColors.red,
                    borderColor: window.chartColors.red,
                    data: [
                        randomScalingFactor(),
                        randomScalingFactor(),
                        randomScalingFactor(),
                        randomScalingFactor(),
                        randomScalingFactor(),
                        randomScalingFactor(),
                        randomScalingFactor()
                    ],
                    fill: false,
                }, {
                    label: "My Second dataset",
                    fill: false,
                    backgroundColor: window.chartColors.blue,
                    borderColor: window.chartColors.blue,
                    data: [
                        randomScalingFactor(),
                        randomScalingFactor(),
                        randomScalingFactor(),
                        randomScalingFactor(),
                        randomScalingFactor(),
                        randomScalingFactor(),
                        randomScalingFactor()
                    ],
                }]
            },
            options: {
                responsive: true,
                title:{
                    display:true,
                    text:'Chart.js Line Chart'
                },
                tooltips: {
                    mode: 'index',
                    intersect: false,
                },
                hover: {
                    mode: 'nearest',
                    intersect: true
                },
                scales: {
                    xAxes: [{
                        display: true,
                        scaleLabel: {
                            display: true,
                            labelString: 'Month'
                        }
                    }],
                    yAxes: [{
                        display: true,
                        scaleLabel: {
                            display: true,
                            labelString: 'Value'
                        }
                    }]
                }
            }
        };

        window.onload = function() {
            var ctx = document.getElementById("canvas").getContext("2d");
            window.myLine = new Chart(ctx, config);
        };

        document.getElementById('randomizeData').addEventListener('click', function() {
            config.data.datasets.forEach(function(dataset) {
                dataset.data = dataset.data.map(function() {
                    return randomScalingFactor();
                });

            });

            window.myLine.update();
        });

        var colorNames = Object.keys(window.chartColors);
        document.getElementById('addDataset').addEventListener('click', function() {
            var colorName = colorNames[config.data.datasets.length % colorNames.length];
            var newColor = window.chartColors[colorName];
            var newDataset = {
                label: 'Dataset ' + config.data.datasets.length,
                backgroundColor: newColor,
                borderColor: newColor,
                data: [],
                fill: false
            };

            for (var index = 0; index < config.data.labels.length; ++index) {
                newDataset.data.push(randomScalingFactor());
            }

            config.data.datasets.push(newDataset);
            window.myLine.update();
        });

        document.getElementById('addData').addEventListener('click', function() {
            if (config.data.datasets.length > 0) {
                var month = MONTHS[config.data.labels.length % MONTHS.length];
                config.data.labels.push(month);

                config.data.datasets.forEach(function(dataset) {
                    dataset.data.push(randomScalingFactor());
                });

                window.myLine.update();
            }
        });

        document.getElementById('removeDataset').addEventListener('click', function() {
            config.data.datasets.splice(0, 1);
            window.myLine.update();
        });

        document.getElementById('removeData').addEventListener('click', function() {
            config.data.labels.splice(-1, 1); // remove the label first

            config.data.datasets.forEach(function(dataset, datasetIndex) {
                dataset.data.pop();
            });

            window.myLine.update();
        });
    </script>
</body>

</html>

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