| 1 | # D3 |
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| 2 | |
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| 3 | **D3** is a small, free JavaScript library for manipulating HTML documents |
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| 4 | based on data. D3 can help you quickly visualize your data as HTML or SVG, |
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| 5 | handle interactivity, and incorporate smooth transitions and staged animations |
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| 6 | into your pages. You can use D3 as a visualization framework (like Protovis), |
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| 7 | or you can use it to build dynamic pages (like jQuery). |
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| 8 | |
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| 9 | ### Browser Support |
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| 10 | |
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| 11 | D3 should work on any browser, with minimal requirements such as JavaScript |
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| 12 | and the [W3C DOM](http://www.w3.org/DOM/) API. By default D3 requires the |
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| 13 | [Selectors API](http://www.w3.org/TR/selectors-api/) Level 1, but you can |
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| 14 | preload [Sizzle](http://sizzlejs.com/) for compatibility with older browsers. |
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| 15 | Some of the included D3 examples use additional browser features, such as |
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| 16 | [SVG](http://www.w3.org/TR/SVG/) and [CSS3 |
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| 17 | Transitions](http://www.w3.org/TR/css3-transitions/). These features are not |
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| 18 | required to use D3, but are useful for visualization! D3 is not a |
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| 19 | compatibility layer. The examples should work on Firefox, Chrome (Chromium), |
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| 20 | Safari (WebKit), Opera and IE9. |
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| 21 | |
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| 22 | Note: Chrome has strict permissions for reading files out of the local file |
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| 23 | system. Some examples use AJAX which works differently via HTTP instead of local |
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| 24 | files. For the best experience, load the D3 examples from your own machine via |
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| 25 | HTTP. Any static file web server will work; for example you can run Python's |
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| 26 | built-in server: |
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| 27 | |
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| 28 | python -m SimpleHTTPServer 8888 |
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| 29 | |
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| 30 | Once this is running, go to: <http://localhost:8888/examples/> |
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