Programs contributed by VPython users

• PyGeo a projective geometry toolbox(Arthur Siegel, who unfortunately died in 2007; write to Joel Kahn <jj2kk4@yahoo.com> if you are interested in helping maintain this orphan software)
• Physics projects and links (Rob Salgado)
• KineticsKit a module for quickly building ball-and-spring models (Markus Gritsch)
• Earth Science a collection of Earth Science programs (Lensyl Urbano)
• New objects: hollow tube, frustum (cone with tip cut off), and partial sphere (Thom Ives)
• Cherry tree made by recursion (Viktor Ferenczi)
• Analog clock (Viktor Ferenczi)
• Chess board -- doesn't actually play but will execute moves (Shaun Press)
• Shoot the monkey (John Keck)
• Complete but experimental distutils package, Windows-oriented (Arthur Siegel; minor revisions by Bruce Sherwood)
• setup.py from the experimental distutils package (Arthur Siegel; minor revisions by Bruce Sherwood)
• stereo.py creates a "wall-eyed" stereo pair (Bruce Sherwood)
• grayscale.py changes a color scene to grayscale; useful for testing redblue stereo (Bruce Sherwood)
• boids.py generates bird flocking behavior (Eric Nilsen)
• movie.py generates a QuickTime movie on MacOSX (Kelvin Chu)
• kepler.py illustrates Kepler's "equal area" rule for planetary motion ( Peter Borcherds)
• EMWave.py illustrates the relationships among electric and magnetic fields in electromagnetic radiation (Rob Salgado)
• face.py makes an amusing face (Joel Kahn)
• capital_letters.py displays capital letters using curves (Joel Kahn)
• visualjoints.py uses pyODE (http://pyode.sourceforge.net), an open-source physics engine (Miles Jacobs)
• movecamera.py saves a user-selected view (after zoom and spin), then restores that view later (Bill Ward and Bruce Sherwood)
• VPNBody multibody solar system dynamics (Rodney Dunning)
• SaraivaDemo.py is a fun and attractive demonstration of various VPython capabilities (Eduardo Saraiva).
• pipes.py is a screen-saver-like animation of connecting pipes; press ESC to get out of this full-screen program (William Wright).
• Computation using VPython of planetary ring formation (Michael Cobb). See FAQ for details on how the VPython displays were captured and then made into a video.
• look_around.py shows how to rotate a camera at the origin and look around at a surrounding scene (Bruce Sherwood).
• vspace.py is a space voyaging demo (Ron Adam).
• pixelplot.py shows a way to do pixel-oriented plotting in VPython (Bruce Sherwood).
  

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