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November 18, 2014 21:30
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D3 Colors
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| <!DOCTYPE html> | |
| <!-- D3 has a lot of neat ways to manipulate color | |
| https://github.com/mbostock/d3/wiki/Colors --> | |
| <html> | |
| <head> | |
| <!-- Load D3 from site --> | |
| <script src="http://d3js.org/d3.v3.min.js" charset="utf-8"></script> | |
| <!-- CSS (Styling) --> | |
| <style type="text/css"> | |
| </style> | |
| </head> | |
| <body> | |
| <!-- Begin Javascript --> | |
| <script type="text/javascript"> | |
| ////////// COLORS ////////// | |
| // Create a color value | |
| mycolor = d3.rgb("#ffffff"); // Pass in Hex | |
| mycolor = d3.rgb(12, 67, 199); // Red, Green, Blue | |
| mycolor = d3.hsl(0, 100, 50); // Hue-Saturation-Lightness (e.g. red) | |
| mycolor = d3.hcl(-97, 32, 52); // steelblue | |
| mycolor = d3.lab(52, -4, -32); // Lab color space (l, a, b); steelblue | |
| d3.select("body").style("background-color", mycolor) // set background color | |
| // Make brighter and darker - Can be used for hovers | |
| darkercolor = mycolor.darker(0.1); | |
| lightercolor = mycolor.brighter(0.1); | |
| ////////// DISPLAY COLORS ////////// | |
| var svg = d3.select("body").append("svg") | |
| .attr({ | |
| width: window.innerWidth, | |
| height: window.innerHeight | |
| }); | |
| //var color = d3.scale.category10(); // d3 has built-in Colors | |
| //var color = d3.scale.category20(); // d3 has built-in Colors - Color Set 1 | |
| //var color = d3.scale.category20b(); // d3 has built-in Colors - Color Set 2 | |
| var color = d3.scale.category20c(); // d3 has built-in Colors - Color Set 3 | |
| var dataset = d3.range(20); | |
| var barWidth = window.innerWidth / dataset.length; | |
| // Print out colors | |
| svg.selectAll("rect") | |
| .data(dataset) | |
| .enter() | |
| .append("rect") | |
| .attr({ | |
| width: barWidth, | |
| height: window.innerHeight, | |
| y: 0, | |
| x: function (d, i) { | |
| return barWidth * i; | |
| }, | |
| fill: color | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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