Hi all,<br><br>I am using a Hokuyo laser range sensor scanning horizontally  on a vertical translating rail thus having 3D scan of the world. I would like to extract some 3D volume of it (such as cubes). I am not used to play with such data acquisition so I wonder if it already exist some marvellous ROS package doing such scan extraction. In fact I am sure that PR2 are using it with a rotation of the scanner, that&#39;s why I am asking here.<br>
<br>I may need to read some documentation to have the &quot;keyword&quot; of 3D extraction, do not hesitate to give me some readings not to loose your time in &quot;noob&quot; questions. <br><br>P.S.: a friend of mine is in copy because not on the list. I am sure he&#39;ll be converted to the power of ROS after this :p<br>