CGRect rect1 = backgroundImageView.frame; NSLog(@"%f,%f,%f,%f",rect1.origin.x,rect1.origin.y,rect1.size.width,rect1.size.height);

     angle = -90.0;

moveX = 0; moveY = 0.0;

CGFloat degreesToRadians = M_PI * angle / 180.0; CGAffineTransform landscapeTransform = CGAffineTransformMakeRotation(degreesToRadians); landscapeTransform = CGAffineTransformTranslate( landscapeTransform, moveX, moveY ); [backgroundImageView setTransform:landscapeTransform];

rect1 = backgroundImageView.frame; NSLog(@"%f,%f,%f,%f",rect1.origin.x,rect1.origin.y,rect1.size.width,rect1.size.height);

the debug message output: 0.000000,0.000000,320.000000,480.000000 -80.000000,80.000000,480.000000,320.000000

why does the (x,y) changes to (-80,80)?