3D Graphics Programming with QuickDraw 3D 1.5.4

Using Group Objects

QuickDraw 3D provides functions that you can use to create a group, add objects to a group, remove objects from a group, and dispose of a group. It also provides functions that you can use to count the number of objects in a group, access objects by their position in the group, draw a group, pick objects in a group, and perform other operations on group objects. This section illustrates how to use some of these functions. In particular, it shows:

how to create groups and add objects to them
how to operate on all objects in a group, or on all objects of a particular type in a group

Creating Groups

Accessing Objects by Position