title: How to rotate an image actor in libgdx by the middle point?
body: <p>If I understand correctly, LibGDX is rotating an image with the use of the addActions method:</p>
  
  <pre><code>this.addAction( parallel(rotateBy(360, 0.5f), moveTo(320, 100, 0.5f)));
  </code></pre>
  
  <p>The thing is, it is being rotated by the <strong>point=(0,0)</strong>  of the image.</p>
  
  <p>Here's my question:</p>
  
  <p>Is there a way to <strong>rotate an image</strong> by the <strong>center point</strong> of the object? Something like pinning it in the middle and then turning it like a wheel in a car?
  Both <strong><em>rotateBy</em></strong> and <strong><em>rotateTo</em></strong> methods turn it by the (0,0) point of the image itself.</p>