Graphics Programs Reference
In-Depth Information
In this section, you will move
cart
by setting the keyframe for the
Position
spinner of the
Align to Spline Expression [Align to Spline]
tag.
Figure 8-30
cart aligned with Road
1. Make sure the timeslider is at frame 0. In the Attribute Manager, right-click on the circle
located at the left of the
Position
spinner in the
Tag Properties
area; a shortcut menu is
displayed. Choose
Animation > Add Keyframe
from it; the circle turns red and a key-
frame is added at frame 0.
2. Move the time slider to frame 101. Next, in the Attribute Manager, enter
100
in the
Pos-
ition
spinner .
3. Right-click
on the circle located at the left of the
Position
spinner; a shortcut menu is
displayed. Choose
Animation > Add Keyframe
from it; the circle turns red and a key-
frame is added at frame 101. Also,
cart
is moved to the end of
Road
.
4. Choose the
Play Forwards
button from the Animation toolbar. You will notice that
cart
is not moving exactly along
Road
on its curved stretch, refer to Figure 8-31. To over-
come it, select the
Tangential
check box located above the
Position
spinner in the At-
tribute Manager.
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