| 摘要 |
Methods and systems in accordance with the present invention provide computer animation in which drawing lines or marks are erased after a predetermined time interval. When the lines or marks are automatically erased after a set interval, animations may be created with relatively little effort. Methods and systems in accordance with the present invention provide an easy, intuitive way to create animations by recording drawing events in sequence, and playing back these events at a defined rate while erasing old events after a predetermined interval. The persistence interval, which can be defined, for example, in time or by a function of the relative order the line was drawn ("line drawn index"), and the playback rate may be defined by the creator of the animation for each drawing event. The result of this process is a dynamically changing drawing which can be replayed as an animation.
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