animation attribute to
A circle moves in the vertical direction, using two animations
with the to attribute and with a freeze fill and two begins.
These animations are superposed by a simple from to
animation from left to right. The visible effect is
a motion along the given gray polyline.
If the red center of the circle becomes visible, an error is
occured.
With the restart the priority of the animations is exchanged.
They are both active at the same time. If the animation
with the lower priority is restarted, it gets the higher priority and
is therefore not the underlying value for the other
animation anymore. This other animation is now
the underlying value of the higher priority animation.