4 struct Vector3D  struct
7 		Vector3D();  argument
8 		Vector3D(const Vector3D &inVector);  field
9 		Vector3D(float initX, float initY, float initZ);  argument
10 		Vector3D &operator=(const Vector3D & rhs);  argument
15 	Vector3D position;  argument
16         Vector3D length;
18 @property (assign) Vector3D position;
19 - (Vector3D) length;
20 - (void) setLength: (Vector3D)arg;  argument
26         Vector3D V3D(1.0f, 1.0f, 1.0f);