Overview

This chapter discusses QuickTime vectors, also known as curve media. QuickTime vectors are mathematical descriptions of images that are smaller in size than their equivalent bitmaps and can be scaled without loss of image quality. A vector QT atom container specifies the characteristics of a QuickTime vector. The container contains atoms for paths and can also contain atoms that specify attributes of the paths, such as their color.

This chapter presents you with general information about QuickTime vectors. It also provides background information about Macintosh QuickDraw GX objects that you need to know before using QuickTime vectors in your software.

Read this chapter if you need to create and manipulate QuickTime vectors. This chapter shows you, for example, how to convert QuickDraw GX data to QuickTime vectors by using the QuickDraw GX vector transcoder. It also provides you with a "QuickTime Vector Reference" that describes the constants, data types, and functions associated with QuickTime vectors.