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Current File : /var/www/html/news/public/bower_components/chart.js/samples/charts/area/line-stacked.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",
					borderColor: window.chartColors.red,
					backgroundColor: window.chartColors.red,
					data: [
                        randomScalingFactor(),
                        randomScalingFactor(),
                        randomScalingFactor(),
                        randomScalingFactor(),
                        randomScalingFactor(),
                        randomScalingFactor(),
                        randomScalingFactor()
                    ],
				}, {
					label: "My Second dataset",
					borderColor: window.chartColors.blue,
					backgroundColor: window.chartColors.blue,
					data: [
                        randomScalingFactor(),
                        randomScalingFactor(),
                        randomScalingFactor(),
                        randomScalingFactor(),
                        randomScalingFactor(),
                        randomScalingFactor(),
                        randomScalingFactor()
                    ],
				}, {
					label: "My Third dataset",
					borderColor: window.chartColors.green,
					backgroundColor: window.chartColors.green,
					data: [
                        randomScalingFactor(),
                        randomScalingFactor(),
                        randomScalingFactor(),
                        randomScalingFactor(),
                        randomScalingFactor(),
                        randomScalingFactor(),
                        randomScalingFactor()
                    ],
				}, {
					label: "My Third dataset",
					borderColor: window.chartColors.yellow,
					backgroundColor: window.chartColors.yellow,
					data: [
                        randomScalingFactor(),
                        randomScalingFactor(),
                        randomScalingFactor(),
                        randomScalingFactor(),
                        randomScalingFactor(),
                        randomScalingFactor(),
                        randomScalingFactor()
                    ],
				}]
			},
			options: {
				responsive: true,
				title:{
					display:true,
					text:"Chart.js Line Chart - Stacked Area"
				},
				tooltips: {
					mode: 'index',
				},
				hover: {
					mode: 'index'
				},
				scales: {
					xAxes: [{
						scaleLabel: {
							display: true,
							labelString: 'Month'
						}
					}],
					yAxes: [{
						stacked: 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,
				borderColor: newColor,
				backgroundColor: newColor,
				data: [],
			};

			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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