9.5.2

280 • CHAPTER 7
OBJECTS MENU • SPLINES • 281
Start Angle, End Angle
These values dene the start and end positions of the rolling circle. There is a small, but crucial,
difference between the Cycloid, Hypocycloid and Epicycloid values. For Cycloid, you simply dene the
values for the start angle and the end angle of the rotating circle. With Epicycloid and Hypocycloid,
you dene the values for the start and end points on the xed circle. Although the rotating circle
still begins at 0°, these angles can be thought of as the range over which the rotating curve becomes
visible.
Angle range on the left is 0 – 360°, on the right it is 90 – 270°.
Plane
With this option you choose in which of the three planes the spline primitive is created.
Reverse
Enable this option to reverse the spline’s points.
Intermediate Points, Number, Angle
These interpolation settings dene how the intermediate points of the spline are produced. For more
information on these settings, look up ‘interpolation, spline’ in the index.
Formula
This command creates a geometric curve based on a mathematical formula. You’ll nd a list of all
CINEMA 4D’s built-in commands, operators and constants in the appendix.