Hi: I think I've implemented correctly plotting routines for the Rubik's cube. Two examples are given at http://sage.math.washington.edu/home/wdj/expository/ , if anyone is interested. They use Tom Boothby's polygon_plot3d code which he emailed me. (Tom: I hope I am free to use it and add a GPL blurb to it with your name appropriately added?). The plan is to have by default, "sagemath.org" to appear in grey in the lower right hand corner (which can be cropped out or turned off, if desired). Any comments on it? Maybe a lighter grey? It will take awhile to create a patch since it is currently not implemented as a CubeGroup module method. Maybe by late romorrow. I was hoping to use Tachyon but I couldn't find some features I needed so I didn't get far with it. - David
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