title: CALayer scale animation for layer size starting from bottom left to top right
body: <p>Another problem with animation on a layer to make it scale and show like growing from bottom left, somewhat similar to the figure :</p>
  
  <pre><code>---------------    
  |             |
  |----------   |
  |         |   |
  |         |   |
  |-----    |   |
  |    |    |   |
  ---------------
  </code></pre>
  
  <p>I have tried some animations but not able to achieve it exactly the way i want. 
  Please suggest. Currently using following code to scale:</p>
  
  <pre><code>layer.anchorPoint = CGPointMake(1, 1);
  CABasicAnimation *scale = [CABasicAnimation animationWithKeyPath:@"transform.scale"];
  [scale setFromValue:[NSNumber numberWithFloat:0.0f]];
  [scale setToValue:[NSNumber numberWithFloat:1.0f]];
  [scale setDuration:1.0f];
  [scale setRemovedOnCompletion:NO];
  [scale setFillMode:kCAFillModeForwards];
  </code></pre>