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

Chapter 4 - Geometric Objects / Geometric Objects Reference

Data Structures

Point Objects

A point object is simply a dimensionless position in three-dimensional space, with an optional set of attributes. A point object is defined by the TQ3PointData data type. See "Creating and Editing Points," beginning on page 4-59 for a description of the routines you can use to create and edit point objects.

typedef struct TQ3PointData {
   TQ3Point3D                 point;
   TQ3AttributeSet            pointAttributeSet;
} TQ3PointData;

Field Description

point

A three-dimensional point.

pointAttributeSet

A set of attributes for the point. The value in this field is NULL if no point attributes are defined.