Runtime remapping is not supported, no.  The mux node in topic_tools
provides a generic version of your JoySwitch node:

http://www.ros.org/wiki/topic_tools/mux

<http://www.ros.org/wiki/topic_tools/mux>Josh

On Thu, Nov 11, 2010 at 11:22 AM, Mike Purvis <mpurvis@clearpathrobotics.com
> wrote:

> Hey all,
>
> Is it possible to remap topics (or other names) at runtime?
>
> The reason I ask is this: We have some simple waypoint navigation running
> with a web gui for our platform, but we like being able to use the web gui
> to quickly switch over to manual control. Currently, this is implemented
> with a "JoySwitch" node, which basically acts as a remapper, and which
> receives its remapping directions from the gui. This seems like a terrible
> state of affairs, and I'm just wondering what the best course of action is.
>
> Ideally, there'd be some way that the gui could redirect the teleop node's
> Twist messages over to the platform's namespace without anyone (itself, or
> any other intermediary) needing to actually receive and resend them. Is this
> possible? If not, would it be better to have this functionality (the receive
> and re-send) baked into the gui node itself?
>
> Thanks,
>
> Mike
>
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