title: Actionscript 3: translating coordinates from object's 3D space to another's?
body: <p>I feel like this has probably been asked/answered here, and if so, I apologize for the bandwidth, but I don't see any explanation.</p>
  
  <p>How does one translate from one object's coordinate space to another in Flash AS3?  I can take a point in an object and translate it to global coordinates using local3DToGlobal() and then to another object's local using globalToLocal3D() -- but is there a direct way?</p>
  
  <p>Thus, if I wanted one object to be able to say to another: 'move your top left corner to my top left corner', even through the two objects are in different z-spaces, rotated 3-dimensionally, etc.</p>
  
  <p>I assume it is in the matrix3D matrix manipulations —</p>
  
  <p>Matrix multiplication?  TransformVector()?  deltaTransformVector()?</p>
  
  <p>I have been poring over the API but would really appreciate a concrete example. </p>
  
  <p>Thanks!</p>