Points_ to append to.Radius1is the first radius of the tapered cylinder.Radius2_ is the second radius of the tapered cylinder.Heightis 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.