title: CGAffineTransformMakeScale Makes UIView Jump to Original Size before scale
body: <p>I have a UIView that I set up to respond to pinch gestures and change its size, except, once you enlarge it and then try and pinch it again, it jumps to its original size (which just so happens to be 100x200). Here is the code:</p>
  
  <pre><code>@implementation ChartAxisView
  
  
  - (id)initWithFrame:(CGRect)frame {
      if ((self = [super initWithFrame:frame])) {
          // do gesture recognizers
          UIPinchGestureRecognizer *pinch = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(onPinch:)]; 
          [self addGestureRecognizer:pinch]; 
          [pinch release];
      }
      return self;
  }
  
  - (void)drawRect:(CGRect)rect {
      CGContextRef context = UIGraphicsGetCurrentContext();
  
      CGColorRef redColor = [UIColor colorWithRed:1.0 green:0.0 blue:0.0 alpha:1.0].CGColor;
  
      CGContextSetFillColorWithColor(context, redColor);
      CGContextFillRect(context, self.bounds);
  }
  
  - (void)onPinch: (UIPinchGestureRecognizer*) gesture {  
      self.transform = CGAffineTransformMakeScale(gesture.scale, gesture.scale);
  }
  
  - (void)dealloc {
      [super dealloc];
  }
  
  
  @end
  </code></pre>
  
  <p>Any thoughts? </p>