Module 

Header 
/Engine/Source/Runtime/Experimental/Chaos/Public/Chaos/Cylinder.h 
Include 
#include "Chaos/Cylinder.h" 
Generates evenly spaced points on a cylinder, oriented about the Z axis, varying from [Height/2, Height/2].
The "golden" part is derived from the golden ratio; stand at the center, turn a golden ratio of whole turns, then emit a point in that direction.
Points are generated starting from the bottom of the cylinder, ending at the top. Contiguous entries in `Points_ generally will not be spatially adjacent.
Points_ to append to.
Radius is the radius of the cylinder. `Height is the height of the cylinder. NumPoints_ is the number of points to generate.
IncludeEndCaps determines whether or not points are generated on the end caps of the cylinder. `SpiralSeed is the starting index for golden spiral generation. When using this method to continue a spiral started elsewhere, `SpiralSeed_ should equal the number of particles already created.