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arbor.js -------- Arbor is a graph visualization library built with web workers and jQuery. Rather than trying to be an all-encompassing framework, arbor provides an efficient, force-directed layout algorithm plus abstractions for graph organization and screen refresh handling. It leaves the actual screen-drawing to you. This means you can use it with canvas, SVG, or even positioned HTML elements; whatever display approach is appropriate for your project and your performance needs. As a result, the code you write with it can be focused on the things that make your project unique – the graph data and your visual style – rather than spending time on the physics math that makes the layouts possible. Installation ------------ To use the particle system, add jquery and the file at lib/arbor.js to your path somewhere and include them in your html: <script src="path/to/jquery.min.js"></script> <script src="path/to/arbor.js"></script> If you want to let arbor handle realtime color and value tweens for you, include the arbor-tween.js file as well. This will add a pair of new tweening methods to the ParticleSystem object (see the docs to decide if this appeals to you or not). <script src="path/to/jquery.min.js"></script> <script src="path/to/arbor.js"></script> <script src="path/to/arbor-tween.js"></script> Getting Started --------------- The docs folder contains a sample project that demonstrates some of the basic idioms for working with the library to build a visualization. More detailed documentation can be found at http://arborjs.org/reference. Colophon -------- Arbor’s design is heavily influenced by Jeffrey Bernstein’s excellent Traer Physics library for Processing. In addition, much of the physics code has been adapted from Dennis Hotson’s springy.js. The Barnes-Hut n-body implementation is based on Tom Ventimiglia and Kevin Wayne’s vivid description of the algorithm. Thanks to all for releasing such elegantly simple and comprehensible code.  <http://murderandcreate.com/physics/>  <https://github.com/dhotson/springy>  <http://arborjs.org/docs/barnes-hut> License ------- Arbor is released under the MIT license. http://en.wikipedia.org/wiki/MIT_License