how to I scale an hour hand image to be small in Interface Builder (without moving center)?

How to I scale an hour hand image to be small in Interface Builder (without moving center)?

So I have:

• Background clock face image
• Arrow image that is about 30% to big, nee开发者_JAVA百科ds to be reduced
• The Background clock face is set to: View Mode = ASPECT FIT (in IB). Plus resizes in each diretion.
• I'm not sure what View Mode the Hour Hand should be at. I've currently set it to Centre, however in priciple I want it to resize (aspect resize) in relation to how much the clock face done during an orientation change.

When resizing it it would have to:

• Not change the center of the image, as I've created the images such that they align well when centred together
• Not be impacted by the "transformation" of the hour hand UIView which is how I move it around
• Work for orientation changes