title: How do I scale CGPoint based on CGSize changes?
body: <p>I have CGRect with a default (square) size.  The size is adjustable based on the view controllers needs, but always maintains a square proportion.</p>
  
  <p>If I want to plot a point within the rect, but the scale of the rect is variable up and down in size, how would I calculate the new point position based on the change in rect size?</p>
  
  <pre><code>// in a UIView object, values always positive
  - (CGPoint)convertPointToViewSizeScale:(CGPoint)point
  {
      CGSize defaultSize = kViewSizeDefault;
      CGSize currentSize = self.frame.size;
      // ...
      return point;
  }
  </code></pre>