The following command will find all files that use a particular message:

rosmsg users package/message_type

You can then search the returned files for a message file that contains an array of the message.

Cheers,
Ben

On Jan 21, 2011, at 8:32 AM, cmuell2s wrote:

> Hello all,
> 
> I stuck at a small problem. I would like to publish a vector/array of 
> pcl::PointCloud<pcl::PointXYZ>.
> I couldn't find a sensor_msg or std_msg which would do it, did I 
> overlooked sth?
> 
> Does anybody have a clue? Maybe a link to an example?
> 
> Thanks a lot for any comment.
> 
>   Christian Mueller
> 
> 
> 
> 
> 
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