Inside Macintosh: 3D Graphics Programming With QuickDraw 3D /

Chapter 20 - QuickDraw 3D Mathematical Utilities / QuickDraw 3D Mathematical Utilities Reference

QuickDraw 3D Mathematical Utilities / Determining the Lengths of Vectors

Q3Vector2D_Length

You can use the Q3Vector2D_Length function to determine the length of a two-dimensional vector.

float Q3Vector2D_Length (const TQ3Vector2D *vector2D);

vector2D

A two-dimensional vector.

DESCRIPTION

The Q3Vector2D_Length function returns, as its function result, the length of the vector vector2D.