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.
Cheers,
Ugo
Brian Gerkey wrote:
> On Tue, Mar 23, 2010 at 3:30 AM, Ugo Cupcic <ugo@shadowrobot.com> wrote:
>> I was wondering how I can achieve to have different callback functions
>> on the same topic depending on the message types.
>
> hi Ugo,
>
> In ROS, a topic can only carry messages of a single type. We decided
> early on that it would be too confusing if a topic could be of
> multiple types. So roscpp doesn't support multi-type callback
> registration.
>
> (Note that the type of a topic actually can change over time, as it's
> determined by the publisher that most recently advertised the topic.
> But in a well-behaved ROS system, topics are stably typed).
>
> brian.
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--
Ugo Cupcic | Shadow Robot Company | ugo@shadowrobot.com
Software Engineer 251 Liverpool Road
need a Hand? London N1 1LX | +44 20 7700 2487
http://www.shadowrobot.com/hand/ @shadowrobot
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