Created
February 28, 2013 16:48
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Separate d3.scale.category20 colors into dark and light ranges
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| <!doctype html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8" /> | |
| <style type="text/css"> | |
| h3 { | |
| clear: left; | |
| margin: 0; | |
| } | |
| ul { | |
| width: 800px; | |
| margin: 0; | |
| list-style-type: none; | |
| } | |
| li { | |
| width: 80px; | |
| font-size: 13px; | |
| padding: 13px 0; | |
| text-align: center; | |
| color: white; | |
| float: left; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <script src="http://d3js.org/d3.v3.min.js"></script> | |
| <script type="text/javascript"> | |
| var body = d3.select('body'), | |
| labels = ['d3.scale.category20()', 'dark', 'light'], | |
| colors = d3.scale.category20().range(), | |
| dark = colors.map(function(d, i, all) { return i<10 ? all[i*2] : null }).filter(Boolean), | |
| light = colors.map(function(d, i, all) { return i<10 ? null : all[(i-10)*2+1] }).filter(Boolean); | |
| [colors, dark, light].map(function(d, i) { | |
| body.append('h3') | |
| .text(labels[i]); | |
| body.append('ul').selectAll('li').data(d).enter().append('li') | |
| .style('background-color', String) | |
| .text(String); | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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