Scale with CGAffineTransform and set the anchor

Question

If I understand correctly scaling a UIView with CGAffineTransform anchors the transformation to its center.

In particular:

Answer 1

Firstly #import <QuartzCore/QuartzCore.h> and then set the anchor points of your view:

   [[self layer] setAnchorPoint:CGPointMake(0, 0)];

Answer 2

(a)

Scale and then translate?

Something like :

CGAffineTransform t = CGAffineTransformMakeScale(2, 2);
t = CGAffineTransformTranslate(t, width/2, height/2);
self.transform = t;

(b)

Set the anchor point (which is probably what you want really)

[self layer].anchorPoint = CGPointMake(0.0f, 0.0f);
self.transform = CGAffineTransformMakeScale(2, 2);

(c)

Set the center again to make sure it's in the same place?

CGPoint center = self.center;
self.transform = CGAffineTransformMakeScale(2, 2);
self.center = center;