[ros-users] Problems publishing topics
Benoit Larochelle
Benoit.Larochelle at dfki.de
Fri Oct 21 08:40:25 UTC 2011
Hi Manuel.....
Maybe this post will help you: http://answers.ros.org/question/2151/how-do-i-publish-exactly-one-message
Benoit
From: Manuel Rodríguez
Sent: Friday, October 21, 2011 10:35 AM
To: User discussions
Subject: [ros-users] Problems publishing topics
Hi all,
I'm trying to publishing to a topic but I have an absurd problem:
When I use this:
self.pub = rospy.Publisher('arm_controller/command', JointTrajectory)
msg = JointTrajectory()
self.pub.publish(msg)
it does not publish absolutly nothing.
But, if I use the pub.publish inside an infinite loop, it works:
self.pub = rospy.Publisher('arm_controller/command', JointTrajectory)
msg = JointTrajectory()
while True:
self.pub.publish(msg)
I can publish with -rostopic pub- without problems, so it's a code problem? What I should change?
Best regards
manuel
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