iPhone Dev:Blurring of CALayers when rotated
- by user153231
Hello All,
I have a CALayer with a png image as its content.When rotation is applied the layer looks blurry.
I've searched for a cause for this problem and found out that the problem might be the half pixel problem, which makes the layer blurry if its frame.origin lays on fractions like 96.5, and they suggest to make the origin a whole number. Now, my layer's origin contains fractions because of the rotation i make as in:
tempLayer.anchorPoint = CGPointMake(0.5,0.5);
tempLayer.position = CGPointMake(200,100);
tempLayer.bounds = CGRectMake(0,0,70,88);
tempLayer.transform = CATransform3DMakeRotation(10.f*M_PI/180.f, 0.f, 0.f, 1.f);
tempLayer.contents = (id)myImage;
Basically i have three questions:
1) Is there a better way to rotate the layer?
2) The frame values are derived from the anchorPoint, position, bounds and transform values, how can i round my frame values to integer values and keep my rotation intact?
3) Can the CGRectIntegral function help me? If yes how?
Thank you all in advance.
