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Inside Macintosh: 3D Graphics Programming With QuickDraw 3D /
Chapter 20 - QuickDraw 3D Mathematical Utilities / QuickDraw 3D Mathematical Utilities Reference
QuickDraw 3D Mathematical Utilities


Converting Dimensions of Points and Vectors

QuickDraw 3D provides routines that you can use to convert a point or vector of a given dimension to another dimension. When the given dimension is less than the result dimension, the last component is set to 1.0. When the given dimension is greater than the result dimension, each component in the result structure is set to its corresponding component in the given structure divided by the last component.

IMPORTANT
You must already have allocated space for the result structure before attempting to convert the dimension of a point or vector.

Subtopics
Q3Point2D_To3D
Q3Point3D_To4D
Q3RationalPoint3D_To2D
Q3RationalPoint4D_To3D
Q3Vector2D_To3D
Q3Vector3D_To2D

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© Apple Computer, Inc.
11 JUL 1996