Hi Manuel.....
 
Maybe this post will help you: http://answers.ros.org/question/2151/how-do-i-publish-exactly-one-message
 
Benoit
 
Sent: Friday, October 21, 2011 10:35 AM
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
 
 


_______________________________________________
ros-users mailing list
ros-users@code.ros.org
https://code.ros.org/mailman/listinfo/ros-users