9.5.2

282 • CHAPTER 7
OBJECTS MENU • SPLINES • 283
In the following illustration is a standard sine wave with a denition range of –1 to +1. Below it we
see the same command but this time with a range of –2 to +2. In both cases, the number of steps
was set to 10.
The same curve using various ranges for t.
As you increase the range of values that t can take, you may need to increase the Samples value in
order to keep the curve smooth.
Cubic Interpolation
Enable this option to keep down the number of vertices. Cubic interpolation adds additional intermediate
values between two vertices, effectively calculated according to the interpolation.
Figure 1: The effect of cubic interpolation.
No interpolation (top), interpolation
enabled (below).
Figure 2: The true and interpolated curves.
Figure 2, above, illustrates the differences between interpolated and non-interpolated (true) examples
of the curve.