animateMotion
Three circles are moved along a cubic path with
a duration of 30s and repetition.
The calcMode of the dark blue circle is paced for
comparison, the calcMode of the light blue circle is
linear, the calcMode of the small blue circle is discrete.
Light gray circles just show the control points of the
path, not relevant for the timing of the discrete or linear animation.
The linear and the discrete animations have keyPoints
from 0 to 1 in steps of 0.1.
For the discrete animation this means 10 equidistant
steps along the path, marked as dark gray gaps in the gray path.
Because the path is divided in
10 equidistant steps, the linear animation is almost
the same as paced, but not exactly.
It will join the paced animation
with each of the 10 steps again exactly.