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treelabel.html
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treelabel.html
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<!DOCTYPE html>
<html>
<head>
<script src="https://unpkg.com/chart.js@3.8.0/dist/chart.js"></script>
<script src="https://unpkg.com/chartjs-plugin-datalabels@next"></script>
<script src="https://cdn.jsdelivr.net/npm/hammerjs@2.0.8"></script>
<script src="https://unpkg.com/chartjs-plugin-zoom/dist/chartjs-plugin-zoom"></script>
<script src="../build/index.umd.js"></script>
</head>
<body>
<div style="width: 75%">
<canvas id="canvas"></canvas>
<select id="mode" value="dendrogram">
<option>dendrogram</option>
<option>tree</option>
</select>
<select id="orientation" value="horizontal">
<option>horizontal</option>
<option>vertical</option>
<option>radial</option>
</select>
</div>
<script>
Chart.register(ChartDataLabels);
fetch('./tree.json')
.then((r) => r.json())
.then((nodes) => {
const chart = new Chart(document.getElementById('canvas').getContext('2d'), {
type: 'forceDirectedGraph',
data: {
labels: nodes.map((d) => d.name),
datasets: [
{
pointBackgroundColor: 'steelblue',
pointRadius: 5,
data: nodes,
},
],
},
options: {
// dragData: true,
// dragX: true,
layout: {
padding: {
top: 5,
left: 5,
right: 40,
bottom: 5,
},
},
plugins: {
datalabels: {
display: true,
align: 'right',
offset: 6,
backgroundColor: 'white',
formatter: (v) => {
return v.name;
},
},
zoom: {
pan: {
enabled: true,
},
zoom: {
wheel: {
enabled: true,
},
pinch: {
enabled: true,
},
// drag: {
// enabled: true
// },
mode: 'xy',
},
},
},
legend: {
display: false,
},
},
});
document.getElementById('mode').onchange = (evt) => {
chart.getDatasetMeta(0).controller.reLayout({
mode: evt.currentTarget.value,
});
};
document.getElementById('orientation').onchange = (evt) => {
chart.getDatasetMeta(0).controller.reLayout({
orientation: evt.currentTarget.value,
});
};
});
</script>
</body>
</html>