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I want to trigger a launch file using a client node when the service node returns a boolean value true. I have created a simple client and service. The response of the service node is a boolean variable. How can I trigger the launch file when the client receives true in the response for its request? I am using ROS Fuerte on Ubuntu 12.04.
I have needed to do a similar launching process,and I found two possible methods. Two possible methods:
Obviously, 1 is more desirable. But I ended up using 2 as its more stable, at least that is what I found
For 2, in C++ you could use the system command. In python you can use os.system or more advisably subprocess library
I hope this helpful. SORRY it wouldnt let me leave it as an answer
Guy
Asked: 2013-07-22 23:50:21 -0500
Seen: 823 times
Last updated: Jul 22 '13
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Thanks a lot.I had tried putting all nodes in a single launch file. I created a message type which contained the boolean variable.Each node in the launch file subscribes the message.I tried to trigger each node in the launch file separately.I was not aware of system commands.I will try to use them.