The "Timeline" feature is a tool that visually displays changes in data over time. Users can easily see changes and transitions in data at specific points in time, and can analyze data from the past, present, and future using the timeline. This feature is used to adjust the timing of drawings, add keyframes, and arrange layers in order.
When motion is set for a 3D object, it is activated as an animation for the object. In addition, you can use the timeline function built into Cesium.
A. Enable timeline playback. This will start the 3D model animation. (You also need to turn on the animation in the 3D model properties.)
B. Show the timeline UI.
C. Enter the current time.
D. Set the animation playback start time. (If nothing is set, it will be automatically set based on the data being displayed.)
E. Set the animation playback end time. (If nothing is set, it will be automatically set based on the data being displayed.)
F. Specify the playback speed method. Choose from "Rate" or "Fixed."
G. Specify the playback speed as a multiple of real-time speed. Negative values can also be specified. The default is 1x.
H. Specify how to handle the situation when the current time reaches the end time. Choose from "Unbounded," "Clamped," or "Bounced."