Inside Macintosh: QuickDraw GX Graphics /

Chapter 4 - Geometric Operations / Geometric Operations Reference

Functions

Reducing and Simplifying Shapes

The geometries of QuickDraw GX shapes can contain many unnecessary or complicating elements:

• duplicate geometric points
• unnecessary colinear geometric points
• crossed contours
• overlapping contours
• unnecessary contour breaks
• a more complex shape type than necessary

The GXReduceShape function eliminates unnecessary geometric points.

The GXSimplifyShape function eliminates crossed contours, overlapping contours, unnecessary contour breaks, and also sets a shape's shape type to the simplest type necessary to describe the shape's geometry.

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Subtopics

GXReduceShape

GXSimplifyShape

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