Treemap layout (with labels).
From D3 in Depth book by Peter Cook.
Last active
August 2, 2017 10:16
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Treemap layout (with labels)
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| license: gpl-3.0 | |
| height: 240 | |
| 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.
Learn more about bidirectional Unicode characters
| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <head> | |
| <title>Treemap layout (with labels)</title> | |
| </head> | |
| <style> | |
| rect { | |
| fill: cadetblue; | |
| opacity: 0.3; | |
| stroke: white; | |
| } | |
| text { | |
| font-family: "Helvetica Neue", Helvetica, sans-serif; | |
| fill: white; | |
| font-size: 10px; | |
| } | |
| </style> | |
| <body> | |
| <svg width="420" height="220"> | |
| <g></g> | |
| </svg> | |
| <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 | |
| } | |
| ] | |
| }; | |
| var treemapLayout = d3.treemap() | |
| .size([400, 200]) | |
| .paddingOuter(16); | |
| var rootNode = d3.hierarchy(data) | |
| rootNode.sum(function(d) { | |
| return d.value; | |
| }); | |
| treemapLayout(rootNode); | |
| var nodes = d3.select('svg g') | |
| .selectAll('g') | |
| .data(rootNode.descendants()) | |
| .enter() | |
| .append('g') | |
| .attr('transform', function(d) {return 'translate(' + [d.x0, d.y0] + ')'}) | |
| nodes | |
| .append('rect') | |
| .attr('width', function(d) { return d.x1 - d.x0; }) | |
| .attr('height', function(d) { return d.y1 - d.y0; }) | |
| nodes | |
| .append('text') | |
| .attr('dx', 4) | |
| .attr('dy', 14) | |
| .text(function(d) { | |
| return d.data.name; | |
| }) | |
| </script> | |
| </body> | |
| </html> |
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