Re: Custom path animation for CAShapeLayer
Re: Custom path animation for CAShapeLayer
- Subject: Re: Custom path animation for CAShapeLayer
- From: David Duncan <email@hidden>
- Date: Mon, 10 Jan 2011 15:24:03 -0800
On Jan 7, 2011, at 4:07 PM, Kenneth Baxter wrote:
> Hi, I'm trying to use a CAShapeLayer for some paths in my application. For the most part this works fine, but in some circumstances the animation from one path to another looks really strange during the animation.
Core Animation's path animation requires the source and destination paths to be of the same structure – that is you can animate between two lines, or two beziers but not from a line to a bezier (as such – you can generate degenerate bezier curves that look like lines to emulate this).
If your source & destination paths do not meet this requirement, you may get unexpected results.
> I would be able to tell it what the path should be at any intermediate point in the animation, but I'm not sure how to get access to it to provide those paths.
The closest thing you could do here is use a Keyframe animation, but I'm not certain this could be done cleanly or without using lots of intermediate paths for even short sequences. It is something to explore.
--
David Duncan
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