d3.hierarchy examples.
From D3 in Depth book by Peter Cook.
Last active
August 2, 2017 10:16
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d3.hierarchy examples
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| license: gpl-3.0 | |
| height: 200 | |
| border: no |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
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| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <head> | |
| <title>Hierarchy examples</title> | |
| </head> | |
| <style> | |
| body { | |
| font-family: "Helvetica Neue", Helvetica, sans-serif; | |
| font-size: 14px; | |
| color: #333; | |
| } | |
| div { | |
| margin: 20px; | |
| } | |
| div span { | |
| font-weight: bold; | |
| } | |
| </style> | |
| <body> | |
| <div id="content"></div> | |
| <script src="https://cdnjs.cloudflare.com/ajax/libs/d3/4.2.2/d3.min.js"></script> | |
| <script> | |
| var data = { | |
| "name": "A1", | |
| "children": [ | |
| { | |
| "name": "B1", | |
| "children": [ | |
| { | |
| "name": "C1", | |
| "value": 100 | |
| }, | |
| { | |
| "name": "C2", | |
| "value": 300 | |
| }, | |
| { | |
| "name": "C3", | |
| "value": 200 | |
| } | |
| ] | |
| }, | |
| { | |
| "name": "B2", | |
| "value": 200 | |
| } | |
| ] | |
| }; | |
| function showArrayElements(data, title) { | |
| d3.select('#content') | |
| .append('div') | |
| .html('<span>' + title + '</span>: ' + data.map(function(d) {return d.data.name;}).join(', ')) | |
| } | |
| function showLinkArrayElements(data, title) { | |
| d3.select('#content') | |
| .append('div') | |
| .html('<span>' + title + '</span>: ' + data.map(function(d) {return d.source.data.name + ' -> ' + d.target.data.name;}).join(', ')) | |
| } | |
| var root = d3.hierarchy(data) | |
| var ancestors = root.children[0].children[1].ancestors() | |
| var descendants = root.descendants() | |
| var leaves = root.leaves() | |
| var path = root.path(root.children[0].children[1]) | |
| var links = root.links() | |
| showArrayElements(ancestors, "root.children[0].children[1].ancestors()") | |
| showArrayElements(descendants, "root.descendants()") | |
| showArrayElements(leaves, "root.leaves()") | |
| showArrayElements(path, "root.path(root.children[0].children[1])") | |
| showLinkArrayElements(links, "root.links()") | |
| </script> | |
| </body> | |
| </html> |
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