摘要 |
A user can control the animation of an object via an interface that includes a control area and a user-manipulable control element. In one embodiment, the control area includes an ellipse, and the user-manipulable control element includes an arrow. In yet another embodiment, the control area includes an ellipse, and the user-manipulable control element includes two points on the circumference of the ellipse. In yet another embodiment, the control area includes a first rectangle, and the user-manipulable control element includes a second rectangle. In yet another embodiment, the user-manipulable control element includes two triangular regions, and the control area includes an area separating the two regions.
|