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

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

QuickDraw 3D Mathematical Utilities / Managing Bounding Boxes

Q3BoundingBox_Union

You can use the Q3BoundingBox_Union function to find the union of two bounding boxes.

TQ3BoundingBox *Q3BoundingBox_Union (
const TQ3BoundingBox *v1, 
const TQ3BoundingBox *v2, 
TQ3BoundingBox *result);

v1

A pointer to a bounding box.

v2

A pointer to a bounding box.

result

On exit, a pointer to the union of the bounding boxes v1 and v2.

DESCRIPTION

The Q3BoundingBox_Union function returns, as its function result and in the result parameter, a pointer to the bounding box that is the union of the two bounding boxes specified by the parameters v1 and v2. The result parameter can point to the memory occupied by either v1 or v2, thereby performing the union operation in place.