2009

2 In the Perspective viewport, create a cone with a radius 1 of 15, a radius
2 of 5, and a height of 30.
3 Select the cylinder, apply a Bend modifier, and set the bend angle to -70
degrees.
4 Turn on Auto Key, move to frame 100, and set the bend angle to 70
degrees.
The cylinder bends from one direction to the other over 100 frames.
5 Turn off Auto Key.
Example continued: To assign the Attachment constraint and adjust the cone:
1 Select the cone.
2
On the Motion panel, open the Assign Controller rollout, click the
Position track, click Assign Controller, and choose Attachment.
The cone moves to the origin of the scene, and the Attachment Parameters
rollout is displayed.
3 Click the Pick object, and then click the cylinder.
The name of the cylinder is displayed above the Pick Object button.
4 Go to frame 0. Orbit the Perspective viewport so you can see the top
surface of the cylinder.
5 Click Set Position, and click and drag over the faces on the top surface
of the cylinder.
The cone jumps to the top of the cylinder. As you drag the mouse, it
jumps to whichever face you drag over.
6 Release the mouse when the cone is on the top surface of the cylinder.
Example continued: To adjust the position of the cone relative to the face:
1 Drag in the face display window to position the red x relative to the
triangle representing the face. (Because of the radial arrangement of cap
faces in a cylinder, the upper-left corner of the displayed triangle is the
center of the cylinder cap. You can turn off Edges Only for the cylinder
to see this.)
2 Adjust the A and B spinners to move the cone across the surface of the
face.
3290 | Chapter 15 Animation