title: Android ARToolkit - Position of marker
body: <p>I'm using the ARToolkit for android and try to write a text over the detected marker. I want to do this using a simple TextView. So I'm only using ARToolkit to find the marker.</p>
  
  <p>But how can I find out where in my camera-preview the marker is right no (I need the coordinates), so I can but the TextView over the marker?</p>
  
  <p>Thanks in advance !</p>