Hi William!
 I did not know that that was the way to go. Thanks a lot for your answer.
In the future I will ask properly.
Thanks a lot again!

El lun., 27 de jul. de 2015 a la(s) 10:25 p. m., William Woodall <
william@osrfoundation.org> escribió:

> Hi Demian,
>
> In the future, these kinds of questions should start on answers.ros.org
> and escalate to the mailing list if general discussion is necessary. I'll
> respond here, but for further discussion I'd appreciate it if you create a
> question on answers.ros.org and send it directly to me in order to
> minimize ros-users traffic.
>
> You're probably looking for the ROS master api:
> http://wiki.ros.org/ROS/Master_API It's the same interface that these
> tools use to get the information.
>
> Thanks,
>
> On Mon, Jul 27, 2015 at 6:21 PM, Demian Schkolnik via ros-users <
> ros-users@lists.ros.org> wrote:
>
>> Hello all! I am making a tool similar to rqt graph.
>> However, for a large number of topics and nodes, my system gets really
>> slow. The problem lies in that I have to make a call to the console of
>> 'rosnode info' for each of the nodes. Is there some way to get the 'graph'
>> with a single call? Or, at least, with fewer calls? For example 'rostopic
>> list' and 'rosnode list' are already there, and that is ok, but I need the
>> full list of suscriptions and publications, without having to make a call
>> for each node...
>>
>> Thanks!
>>
>> _______________________________________________
>> ros-users mailing list
>> ros-users@lists.ros.org
>> http://lists.ros.org/mailman/listinfo/ros-users
>>
>>
>
>
> --
> William Woodall
> ROS Development Team
> william@osrfoundation.org
> http://wjwwood.io/
>