translation.x = (winFrame.size.width / 2.0);
translation.y = (winFrame.size.height / 2.0);
transform = CGAffineTransformMakeTranslation(translation.x, translation.y);
translation.x = (winFrame.size.width / 2.0);
translation.y = (winFrame.size.height / 2.0);
transform = CGAffineTransformMakeTranslation(translation.x, translation.y);