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<!DOCTYPE html>
<html lang="en-US">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=Edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>area > radar | Chart.js sample</title>
<link rel="stylesheet" type="text/css" href="../../style.css">
<script src="../../../dist/Chart.min.js"></script>
<script src="../../utils.js"></script>
<script src="analyser.js"></script>
</head>
<body>
<div class="content">
<div class="wrapper" style="max-width: 512px; margin: auto">
<canvas id="chart-0"></canvas>
</div>
<div class="toolbar">
<button onclick="togglePropagate(this)">Propagate</button>
<button onclick="toggleSmooth(this)">Smooth</button>
<button onclick="randomize(this)">Randomize</button>
</div>
<div id="chart-analyser" class="analyser"></div>
</div>
<script>
var presets = window.chartColors;
var utils = Samples.utils;
var inputs = {
min: 8,
max: 16,
count: 8,
decimals: 2,
continuity: 1
};
function generateData() {
// radar chart doesn't support stacked values, let's do it manually
var values = utils.numbers(inputs);
inputs.from = values;
return values;
}
function generateLabels() {
return utils.months({count: inputs.count});
}
utils.srand(42);
var data = {
labels: generateLabels(),
datasets: [{
backgroundColor: utils.transparentize(presets.red),
borderColor: presets.red,
data: generateData(),
label: 'D0'
}, {
backgroundColor: utils.transparentize(presets.orange),
borderColor: presets.orange,
data: generateData(),
hidden: true,
label: 'D1',
fill: '-1'
}, {
backgroundColor: utils.transparentize(presets.yellow),
borderColor: presets.yellow,
data: generateData(),
label: 'D2',
fill: 1
}, {
backgroundColor: utils.transparentize(presets.green),
borderColor: presets.green,
data: generateData(),
label: 'D3',
fill: false
}, {
backgroundColor: utils.transparentize(presets.blue),
borderColor: presets.blue,
data: generateData(),
label: 'D4',
fill: '-1'
}, {
backgroundColor: utils.transparentize(presets.purple),
borderColor: presets.purple,
data: generateData(),
label: 'D5',
fill: '-1'
}]
};
var options = {
maintainAspectRatio: true,
spanGaps: false,
elements: {
line: {
tension: 0.000001
}
},
plugins: {
filler: {
propagate: false
},
'samples-filler-analyser': {
target: 'chart-analyser'
}
}
};
var chart = new Chart('chart-0', {
type: 'radar',
data: data,
options: options
});
// eslint-disable-next-line no-unused-vars
function togglePropagate(btn) {
var value = btn.classList.toggle('btn-on');
chart.options.plugins.filler.propagate = value;
chart.update();
}
// eslint-disable-next-line no-unused-vars
function toggleSmooth(btn) {
var value = btn.classList.toggle('btn-on');
chart.options.elements.line.tension = value ? 0.4 : 0.000001;
chart.update();
}
// eslint-disable-next-line no-unused-vars
function randomize() {
inputs.from = [];
chart.data.datasets.forEach(function(dataset) {
dataset.data = generateData();
});
chart.update();
}
</script>
</body>
</html>