OptionalphiGrowth ratio of the spiral; values near 1 make a tight spiral, larger values open it faster.
OptionalnumberHow many points to place along the spiral.
OptionalwideningHow much the spiral widens per turn; larger values spread the turns further apart.
OptionalradiusThe distance from the origin the last point reaches, in model units.
OptionalfactorScales the distance before the angle is computed, which turns the whole spiral; 1 leaves it as it is.
The shape of the logarithmic spiral
point.spirallays out: how many points, how far it reaches and how quickly it opens.