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

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

QuickDraw 3D Mathematical Utilities / Calculating Distances Between Points

Q3Point2D_DistanceSquared

You can use the Q3Point2D_DistanceSquared function to determine the square of the distance between two two-dimensional points.

float Q3Point2D_DistanceSquared (
const TQ3Point2D *p1, 
const TQ3Point2D *p2);

p1

A two-dimensional point.

p2

A two-dimensional point.

DESCRIPTION

The Q3Point2D_DistanceSquared function returns, as its function result, the square of the distance between points p1 and p2.