Home/ Questions/Q 86545
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-10T22:15:46+00:00

This may be a silly question to a graphics guru (which I am not),

  • 0

This may be a silly question to a graphics guru (which I am not), but what’s the difference between affine transformations and keyframing? I’m reading about the former in the iPhone cookbook, and she states that ‘Affine transforms enable you to change an object’s geometry by mapping that object from one view coordinate system into another’. This reminds me of when I played with Adobe After Effects, and you’d set the start, ‘in between’, and finishing positions, and would get a nice visual animation. They called it keyframing. So what’s the difference this and affine transormations. Is it a 2D vs 3D thing? Thanks all.

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. An affine transformation is a linear transformation followed by a translation. Examples would be:

    • Rotate 45 degrees to the left then shift up 10 pixels
    • Zoom in by a factor of 2, then move 10 pixels to the right.
    • Rotate 95 degrees.

    They are much simpler than keyframing and the like.

    • 0