Hi,

did as you told me:http://answers.ros.org/question/53333/rospack-depends-geometry_msgs-vs-rosmsg-packages-header/

Very interesting, that you dont get that behaviour.  I am using fuerte with ubuntu 12.04

Best Regards,
   Stephan

On 01/24/2013 08:45 PM, William Woodall wrote:
> Stephan,
>
> Can you take this to answers.ros.org <http://answers.ros.org>?  And in that question there can you tell us what version of ROS you are using?
>
> I do not get the same behavior as you:
>
>     ∫ rospack depends geometry_msgs
>     cpp_common
>     rostime
>     roscpp_traits
>     roscpp_serialization
>     genmsg
>     genpy
>     message_runtime
>     std_msgs
>
>
> --
>
> P.S. in the future please follow the getting help guidelines:
>
> http://ros.org/wiki/Support
>
> Thanks,
>
> On Thu, Jan 24, 2013 at 6:49 AM, Stephan Opfer <opfer@vs.uni-kassel.de <mailto:opfer@vs.uni-kassel.de>> wrote:
>
>     Hi,
>
>     I have some problem in understanding the consistency of the output of the following two commands:
>
>     $rospack depends geometry_msgs:
>     <nothing>
>
>     $rosmsg packages Header
>     ...
>     gazebo_msgs
>     gazebo_plugins
>     geometry_msgs <--
>     hpPackage
>     ...
>
>     So geometry_msgs is using the Header message from std_msgs, but geometry_msgs does not depend on std_msgs. One example of using the Header message is geometry_msgs/TwistStamped:
>
>     $rosmsg show geometry_msgs/TwistStamped
>     std_msgs/Header header
>        uint32 seq
>        time stamp
>        string frame_id
>     geometry_msgs/Twist twist
>        geometry_msgs/Vector3 linear
>          float64 x
>          float64 y
>          float64 z
>        geometry_msgs/Vector3 angular
>          float64 x
>          float64 y
>          float64 z
>
>     Isn't it a bug?
>
>     Best Regards,
>        Stephan
>     _________________________________________________
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>
>
>
>
> --
> William Woodall
> Willow Garage - Software Engineer
> wwoodall@willowgarage.com <mailto:wwoodall@willowgarage.com>
>
>
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-- 
Distributed Systems Research Group
Stephan Opfer  T. +49 561 804-6283  F. +49 561 804-6277
Univ. Kassel,  FB 16,  Wilhelmshöher Allee 73,  D-34121 Kassel
WWW: http://www.vs.uni-kassel.de/mitarbeiter/wiss-mitarbeiter/stephan-opfer/