[ros-users] Publisher/Subscriber Issue

[Robbie Plankenhorn]

Thanks for responding.  I ended up just figuring out the problem.  The
topics didn't match.

Thanks,
Robbie

On Fri, Mar 5, 2010 at 2:45 PM, Josh Faust <jfaust at willowgarage.com> wrote:

> What language(s)?  Do the topics match?  Is it all on one machine?  What do
> the log files say?  Do they work if you start them outside the launch file?
>
> On Fri, Mar 5, 2010 at 11:21 AM, Robbie Plankenhorn <
> rplankenhorn at gmail.com> wrote:
>
>> I am trying to get a publisher/subscriber connection working within my own
>> ros pkg and I am having issues.  I am able to get the talker/listener
>> tutorial working but what I am doing is slightly different.
>>
>> I have an ros program that sets up a TCP socket and waits for a
>> connection.  When the user sends the appropriate command on that socket, I
>> want it to publish a message and that message is redirected to the other
>> program.  Right now, everything starts using a launch file and when it
>> starts, the publisher shows that there are 0 subscribers and the subscriber
>> shows that there are 0 publishers.
>>
>> Are there any special timing conditions that I need to take into account?
>> Is there anything else that I should look at?
>>
>> Thanks,
>> Robbie
>>
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>>
>>
>
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