Graphics Programs Reference
In-Depth Information
Figure 9.67
Group the top joint
under the wheel,
and then group the
wheel arm under
the top joint.
Figure 9.69
Group the IK handle
under the locomo-
tive's top node.
Figure 9.68
Place the end effector where the pump arm and the first wheel connect.
4. If you rotate the control wheel now, the wheel arm still
separates from the pump arm. This is because the IK
handle you just created needs a keyframe to keep it in
position—that is, attached to the pump arm. Select the IK
handle, and, at frame 1, set a position keyframe. Now, if you rotate the control wheel,
the joint and wheel arm pump back and forth.
5. Group the IK handle (ikHandle1) under the top node of the locomotive (wholeLoco),
as shown in Figure 9.69.
