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aschwarz
2023-01-30 08:01:11 +01:00
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chart/samples/bar/bar-stacked-group.html Executable file
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<!doctype html>
<html>
<head>
<title>Stacked Bar Chart with Groups</title>
<script src="../../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>
<button id="randomizeData">Randomize Data</button>
<script>
var barChartData = {
labels: ["January", "February", "March", "April", "May", "June", "July"],
datasets: [{
label: 'Dataset 1',
backgroundColor: window.chartColors.red,
stack: 'Stack 0',
data: [
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor()
]
}, {
label: 'Dataset 2',
backgroundColor: window.chartColors.blue,
stack: 'Stack 0',
data: [
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor()
]
}, {
label: 'Dataset 3',
backgroundColor: window.chartColors.green,
stack: 'Stack 1',
data: [
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor(),
randomScalingFactor()
]
}]
};
window.onload = function() {
var ctx = document.getElementById("canvas").getContext("2d");
window.myBar = new Chart(ctx, {
type: 'bar',
data: barChartData,
options: {
title:{
display:true,
text:"Chart.js Bar Chart - Stacked"
},
tooltips: {
mode: 'index',
intersect: false
},
responsive: true,
scales: {
xAxes: [{
stacked: true,
}],
yAxes: [{
stacked: true
}]
}
}
});
};
document.getElementById('randomizeData').addEventListener('click', function() {
barChartData.datasets.forEach(function(dataset, i) {
dataset.data = dataset.data.map(function() {
return randomScalingFactor();
});
});
window.myBar.update();
});
</script>
</body>
</html>