OK, thanks for those precisions

Cheers,

Brian Gerkey wrote:
> On Tue, Mar 23, 2010 at 8:13 AM, Ugo Cupcic <ugo@shadowrobot.com> wrote:
>> Ok, thanks for your answers. I'm now using a type flag in my message,
>> but I wanted to be sure I was doing it properly.
> 
> hi Ugo,
> 
> Rather than use a flag in a message to switch between types, you
> should consider defining multiple message types.  We designed ROS to
> make it easy to define new messages, and to hook up multiple
> publishers and subscribers.  You're free to use a flag, of course;
> it's just not the recommended design pattern.
> 
> 	brian.
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> 


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