17
votes
4answers
878 views

Drawing intersecting 3D surface plots

I'm attempting to draw six semi-transparent intersecting spheres of different colors---two on each axis x, y, z and all joining at the origin---as shown in the figure below. Note how all the spheres ...
28
votes
2answers
649 views

3D solids with Tikz - or an alternative?

I want to draw 3D shapes in latex. I have tried out different strategies, but nothing has led me to a good solution yet. First what I want to do, then what I have done so far. In prioritized order, ...
12
votes
1answer
492 views

How to draw a circular, inclined road in 3D?

I want to draw the road which is similar to the following (but please ignore grass, soil, and the surrounding scenery for the sake of simplicity), to illustrate a physics problem about circular ...
41
votes
5answers
3k views

3D helix torus with hidden lines

How can I generate the above image using TikZ (possibly other methods will work if they produce better looking results)? I would like to have a nicely shaded (not so dark image) without gridlines ...