I think I've simplified the attached code as much as I can, removing variables
that aren't important as far as I can tell. What remains is a mystery to me. For
instance, I have the following questions:

1. Why is the shape rotated slightly around the z-axis?
2. How were the equations placing the charges inside and outside chosen?
3. When rendering the lines as well as the points, why do the first and last
lines skip across half the scene and connect to each other?

I'm stumped.


"posfan12" <nomail@nomail> wrote:
> I adapted the code found here:
>
> http://www.openprocessing.org/sketch/17344
>
>
> Now, how do I make it so that the charges are located in arbitrary places
> instead of arranged around the origin in a circle?

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Download 'flowlines_test.pov.txt' (4 KB)