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Inside Macintosh: QuickDraw GX Graphics /
Chapter 1 - Introduction to QuickDraw GX Graphics / Geometric Shapes


Geometric Shape Types

There are six basic types of geometric shapes and two special types. The basic geometric shapes include points, lines, rectangles, curves, polygons, and paths; the two special types are empty shapes and full shapes. Figure 1-2 lists the basic geometric shape types and also shows a sample geometry for each of them. Each geometry is made up of geometric points and edges that connect the geometric points. The next section, "Geometric Shape Geometries," introduces these concepts in more detail.

Figure 1-2 The geometric shape types and examples of geometric shape geometries

The empty shape and the full shape are not shown in this figure. An empty shape is
a shape that has no geometry and covers no area. A full shape is the inverse of an empty shape--it covers all area. For a complete description of each type of geometric shape, see the chapter "Geometric Shapes" in this book.


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© Apple Computer, Inc.
7 JUL 1996




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