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Hour 12. Time > Summary

Summary

To extend SVG beyond the static display of still graphics, a unified system of measuring time and action becomes necessary. Time in SVG, just as in day-to-day life, unfolds in a linear fashion, and is measured in a similar manner (seconds, minutes, hours, and so forth). Events may occur at either a designated time or in relation to another event. By setting an event to occur in relation to another, user-based interaction becomes possible (that is, rollovers and linking), making SVG operate comparably to Flash and other interactive technologies. Using time-based events, on the other hand, makes SVG content similar in nature to animated GIFs or video.

Now that you understand the general concept of how time and events unfold, it's on to actual application of this concept. The next hour will introduce you to simple interaction, such as the final “Start” button example in this chapter.


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