[Visualpython-users] Drawing Coordinate Systems, Celestial Mechanics, Spherical Trig

[Wayne W. <sie...@sb...>]

I would like some spherical geometry tools to draw spheres, arcs,

great circles, lat/long, and the like, along with labels and notation. An

example of such a drawing can be found at

<http://www.tpub.com/content/engineering/14071/css/14071_342.htm>. Label is 
important. I'm assuming if one does this in 3-D that one could view the work 
from an angle then project it onto a 2-D drawing surface, which one could 
then print. Win XP user.

I've installed VisPython and see that most examples and tutorials are aimed at solid objects. My needs are mostly drawing lines, transparent sphere(s), and labels. Are there specific commands I should know about for these needs? 

-- 
           Wayne Watson (Watson Adventures, Prop., Nevada City, CA)

             (121.015 Deg. W, 39.262 Deg. N) GMT-8 hr std. time)
              Obz Site:  39° 15' 7" N, 121° 2' 32" W, 2700 feet  

           All the neutrons, and protons in the human body occupy
           a cube whose side is 5.52*10**-6 meters (tiny!). That
           adds up to a 150 pound person. It's not a surprise that
           we are mostly space. (Calculation by WTW)