Hi Ian,<div>see attached simple python script for example, with pr2 running (roslaunch pr2_gazebo pr2_empty_world.launch),<div><div><div>$ ./gms.py pr2 world</div><div>returnd x position  -0.00678816834842</div></div><div>

<br></div><div>Also, can you please re-post your question on <a href="http://answers.ros.org">answers.ros.org</a>?  I think that&#39;s where things should be these days.</div><div><br></div><div>Thanks,</div><div>John</div>

<div><br><br><div class="gmail_quote">On Mon, Apr 25, 2011 at 4:27 PM, Ian Jones <span dir="ltr">&lt;<a href="mailto:ianaldenjones@gmail.com">ianaldenjones@gmail.com</a>&gt;</span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">

Thanks for the reply, it worked as far as compilation went but I am still not positive at how to get at the data further in ModelState.  For example I want to get Pose data more specifically position (x,y,z).  Position is nested inside of pose which is nested inside ModelState, So if i wanted to just get the robots current x position, what sort of call would i need?  Thank you for your time.  <br>

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Ian<br>
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