Question

I have a object A move with Velocity (v1, v2, v3) in 3D space.
Object position is (px,py,pz)
Now i want to add certain particles around object A (in radius dis) on plane which perpendicular to its Velocity direction.

I find something call “cross product” but seen that no use in this case.

Anyone can help?
I’m new to python and don’t really know how to crack it.

Answer 1

The equation of the plane is:

v1*(x-px) + v2*(y-py) + v3*(z-pz) = 0

When you know (x,y) you can find z and so on.

Example:

z = pz – (v1*(x-px) + v2*(y-py))/v3