Points_ to append to.Origin_ is the bottom-most point of the tapered cylinder.Axis_ is the orientation of the tapered cylinder.Radius1is the first radius of the tapered cylinder.Radius2_ is the second radius of the tapered cylinder.Heightis the height of the tapered cylinder.NumPoints_ is the number of points to generate.IncludeEndCaps_ determines whether or not points are generated on the end caps of the tapered 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.