This is a funny coincidence. I stumbled upon this library just yesterday from the Big-O cheatsheet[0] site, but didn't think to post it here. Has anyone here done a detailed comparison between ElGrapho and ngraph.pixel[1] or vivagraph[2]? I currently use ngraph for an interactive VDOM diffing demo[3] and it works great for large amounts of nodes, but I guess I should check this out in more detail now.
[0] http://bigocheatsheet.com/
[1] https://github.com/anvaka/ngraph.pixel
[2] https://github.com/anvaka/VivaGraphJS
[3] https://github.com/atlassubbed/play-relax-visualized