Points_ to append to.Center_ is the center of the sphere.Radius_ is the radius of the sphere.NumPoints_ is the number of points to generate.BottomHalf_ causes the bottom half of the sphere to be generated, starting atCenter_ - (0, 0,Radius_).TopHalf_ causes the top half of the sphere to be generated, starting atCenter_.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.