On 17/06/2009, at 2:09 AM, Chunk 1978 wrote:
i guess my real Cocoa question was when i asked if there was an advantage to using CA over CG when for enlarging only one image object...
This is what you originally posted in this thread:
does anyone know off hand any good online tutorials using Core Animation? ideally, i'd like to see animation grouping, so one single method calling a group that rotates (with specifically set anchor point), and moves from one origin to another. i'm pretty sure i can figure the rest out on my own (opacity, scale, etc.) but first i would like to see how 2 animations are configured and grouped as a guide.
I don't see any mention of image enlargement, so I'm unclear how we ended up there and what your question really is.
Are you asking whether it's better (by some definition of "better") to change the Z position of an image in CA, thus moving it further away or nearer, or to just scale it in 2D? Ultimately, these two things are equivalent, because your screen is a 2D surface and any 3-dimensional effects are an illusion. The illusion of distance is achieved by scaling.
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