Re: Any Good Core Animation Tutorials?
Re: Any Good Core Animation Tutorials?
- Subject: Re: Any Good Core Animation Tutorials?
- From: Graham Cox <email@hidden>
- Date: Wed, 17 Jun 2009 02:21:00 +1000
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.
--Graham
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