Is it possible to make the default
CGAffineTransformMakeScale(320/100, 320/100) transform to your view so that it is scaled, and 100 points will be scaled to
100 * (320/100) = 320 points wide.
Or course, don't use magic numbers like above, but use some constant for the value
100 and something like
[UIScreen mainScreen].applicationFrame.size.width (or
view.window.screen.applicationFrame.size.width or anything similar) to get the width of the screen instead of the value
320 (because magic numbers are bad, and we never know if the size of the screen will change in any future like the height just changed with iPhone5)