Developer Documentation

QuickTime 4 API Documentation

Wired Movies and Sprites

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Display Space

Display space, shown in Figure 1-12 , refers to the pixels drawn in a window. In order to determine the area that a sprite is drawn to in display space, its registration point is first applied to its source matrix. This result is concatenated with its track's matrix and then concatenated with its movie's matrix.

Figure 12 A sprite display space and movie matrix identity

Figure 1-13 shows a movie matrix scaled down to one-half size.

Figure 13 A movie matrix scaled down to one-half size


© 1999 Apple Computer, Inc.

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