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I need a time while running the simulation, but in my code returns zero time.
print rospy.get_time(); #output 0
print rospy.Time.now(); #output 0.0
but i see the time in terminal when i run rostopic echo /clock
Am i doing anything wrong while reading time?
Did you initialize the ros node?
rospy.init_node("mynodename")
The typical approach to get the current time is:
now = rospy.Time.now()
If you are using some kind of simulation you also have to take into account how the use_sim_time parameter influence to the behavior of the rospy.Time. Have a look to: http://wiki.ros.org/Clock
May be the use_sim_time param set to true?
can you check what you get from the following command line:
rosparam get /use_sim_time
Yes, the simulation is running. And the command rosparam get /use_sim_time is giving output true.
rospy.Time.now() is working now after setting the use_sim_true param to false in launch file.
if this answer solved your question, please mark it as solved.
Asked: 2016-06-16 12:04:47 -0500
Seen: 2,110 times
Last updated: Jun 16 '16
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