Re: CALayer and pixel alignment

2010-12-22 Thread Matt Neuburg
On Wed, 22 Dec 2010 10:09:04 +1000, Gideon King said: >I am drawing some CALayers, and use code like what I have below so I can draw >exactly on pixels. Your asking this question this way, and your use of ".5" in your code, makes me want to riff on the distinction between points and pixels. Exp

Re: CALayer and pixel alignment

2010-12-21 Thread Gideon King
Yeah, that crossed my mind too, and I thought I had tried that, but I have just gone back through my code and found that there was a parent layer where I hadn't set it to an integral frame. I fixed that, and it's now working perfectly - looks so much better! Thanks for triggering me to look agai

Re: CALayer and pixel alignment

2010-12-21 Thread Seth Willits
On Dec 21, 2010, at 4:09 PM, Gideon King wrote: > When I draw it in my CALayer drawing code, it's not always pixel aligned. You need to make sure the layer is aligned correctly too. The anchor point by default is {0.5, 0.5}. If you place an oddly-sized layer on X.0 coordinate, it'll be unaligne

CALayer and pixel alignment

2010-12-21 Thread Gideon King
I am drawing some CALayers, and use code like what I have below so I can draw exactly on pixels. When I draw it in my CALayer drawing code, it's not always pixel aligned. It's certainly better than if I had done no rounding, but still it is not correct. Is there something I'm not doing right? W