3D Programming for Windows®

Combining Rotation and Other Transforms

If you keep all CenterX, CenterY, and CenterZ properties set to their default values of 0, and you define a ScaleTransform3D with equal ScaleX, ScaleY, and ScaleZ properties, you can combine that ScaleTransform3D and a RotateTransform3D in a Transform3DGroup, and the ordering doesn't matter. If the ScaleTransform3D scales differently in different dimensions, you need to decide whether the scaling takes place along non-rotated or rotated axes. Introduce a TranslateTransform3D into the mix and the order of the transforms makes a big difference. This difference is most dramatically illustrated in the following program.

Example 3-4. RotationAndRevolution.xaml

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