Utility Functions

QuickDraw 3D provides several mathematical utility functions. You can use the following two macros to convert degrees to radians, and vice versa. These functions use the constant kQ3Pi , equal to .

#define Q3Math_DegreesToRadians(x)              ((x) * kQ3Pi / 180.0)
#define Q3Math_RadiansToDegrees(x)              ((x) * 180.0 / kQ3Pi)


You can use the following two macros to get the minimum and maximum of two values.

#define Q3Math_Min(x,y)             ((x) <= (y) ? (x) : (y))
#define Q3Math_Max(x,y)             ((x) >= (y) ? (x) : (y))


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© 1997 Apple Computer, Inc.

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