spiral1 pattern creates a spiral that winds around the z-axis similar to a screw. When viewed
sliced in the x-y plane, it looks like the spiral arms of a galaxy. Its syntax is:
Number_of_Arms value determines how may arms are winding around the z-axis.
As a normal pattern, the syntax is
spiral1 Number_of_Arms [, Bump_Size]
Number_of_Arms value is a required parameter but the float
which follows is optional.
Note: the comma is required especially if Bump_Size is negative.
The pattern uses the
triangle_wave wave type by default but may use any wave type.