title: What is AffineTransform?
body: <p>I'm reading "Beginning Java Game Programming 2/e" and the book heavily emphasizes using AffineTransform.</p>
  
  <p>There is just one problem, it doesn't explain at all what it is, what it does, and the purpose of AffineTransform.</p>
  
  <p>I have done some google searches, but they're just showing me matrix math... Could someone point me in the right direction?</p>