3D Graphics Programming with QuickDraw 3D 1.5.4

Rotate-About-Point Transforms

Labels

ASCII: RotateAboutPoint
Binary: rtap ( = 0x72746170 )

Data Format



 
AxisEnum            axis

Float32             radians

Point3D             origin

axis: The axis of rotation.
radians: The number of radians to rotate about the axis of rotation.
origin: The point at which the rotation is to occur.

Data Size

Description

A rotate-about-point transform rotates an affected object by the specified number of radians about the line parallel to the value in the axis field and passing through the point specified in the origin field.

Parent Hierarchy

Shared, shape, transform.

Parent Objects

None.

Child Objects

None.

Example



 
Rotate (

    Y                           # axis

    1.0                         # radians

    2 3 4                       # origin

)