A Pen by Samuel Gratzl on CodePen.
Created
June 10, 2021 19:13
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Chart.js Chart Graphs - Trees - v3
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| <div><canvas id="dh"></canvas></div> | |
| <div><canvas id="dv"></canvas></div> | |
| <div><canvas id="f"></canvas></div> |
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| const data = `https://raw.githubusercontent.com/sgratzl/chartjs-chart-graph/master/samples/tree.json`; | |
| function createChart(nodes, id, type, orientation) { | |
| new Chart(document.getElementById(id).getContext("2d"), { | |
| type, | |
| data: { | |
| labels: nodes.map((d) => d.name), | |
| datasets: [{ | |
| pointBackgroundColor: 'steelblue', | |
| pointRadius: 5, | |
| data: nodes.map((d) => Object.assign({}, d)), | |
| }] | |
| }, | |
| options: { | |
| dragData: true, | |
| dragX: true, | |
| tree: { | |
| orientation | |
| }, | |
| layout: { | |
| padding: { | |
| top: 5, | |
| left: 5, | |
| right: 40, | |
| bottom: 20 | |
| } | |
| }, | |
| plugins: { | |
| legend: { | |
| display: false | |
| }, | |
| datalabels: { | |
| align: orientation === 'vertical' ? 'bottom' : 'right', | |
| offset: 6, | |
| backgroundColor: 'white', | |
| formatter: (v) => { | |
| return v.name; | |
| } | |
| } | |
| }, | |
| } | |
| }); | |
| } | |
| fetch(data).then((r) => r.json()).then((nodes) => { | |
| createChart(nodes, 'dh', 'dendogram', 'horizontal'); | |
| createChart(nodes, 'dv', 'dendogram', 'vertical'); | |
| createChart(nodes, 'f', 'forceDirectedGraph', 'vertical'); | |
| }); |
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| <script src="https://unpkg.com/chart.js@3"></script> | |
| <script src="https://unpkg.com/chartjs-chart-graph@3"></script> |
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| body { | |
| width: 100vw; | |
| height: 100vh; | |
| display: grid; | |
| grid-template-rows: repeat(2, 1fr); | |
| grid-template-columns: repeat(2, 1fr); | |
| } |
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