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node.js

This plugin is designed for node.js and uses require.

You will find an ''issue'' in the issue list, which is actually a question about how to use it in a browser, no node.js

One possibility is to use browserify.

reusability

This plugin makes heavy use of 'this'. http://davidshariff.com/blog/javascript-this-keyword/ This can make re-use a bit complicated.

Creating gauges programmatically, using dynamic data from d3 itself, for example to define position or range values, can be a challenge.

Interesting articles on this topic can be found at:

• http://bost.ocks.org/mike/chart/
• http://bocoup.com/weblog/author/mike-pennisi/