How to throttle a bag file?

asked 2014-01-01 16:28:02 -0600

Astronaut
302 ●177 ●206 ●214

Hello

I have bag file with topics scan and imu but I need to throttle them as the frequency rate is to high. So basicly I wont to use the same bag file but with much lower frequency. When the ros topics in the bag file are throttled is good, but when I have the bag file with same ros topics but are not throttle the frequency rate of the recorded topic is to high. So I thought I can throttle the bag file in order to have the same information but recorded with lower frequency rate. Is that possible and if yes how to do it?

edit retag flag offensive close merge delete

add a comment

1

answered 2014-01-01 17:28:04 -0600

Tim Sweet

267 ●5 ●12 http://github.com/tim36272

Hello!

Would using the rate option for rosbag play solve your problem? For example, you can lower the publish rate to half speed using:

rosbag play my_bag.bag -r 0.5

Where 0.5 means 0.5 times the recorded rate.

Otherwise, you can use throttle from: http://wiki.ros.org/topic_tools/throttle

-Tim

edit flag offensive delete link

Comments

Awesome, if this helped you could you accept the answer so other people can find answers more efficiently?

Tim Sweet ( 2014-01-02 19:43:54 -0600 )edit

add a comment

0

answered 2014-01-01 19:19:00 -0600

Astronaut
302 ●177 ●206 ●214

updated 2014-01-02 23:20:30 -0600

I find this option

<launch>
  <node name="foo_throttler" type="throttle" pkg="topic_tools" args="messages /input_topic frequency/input_topic_throttled" />
</launch>

edit flag offensive delete link

add a comment

How to throttle a bag file?

2 Answers

Comments

Question Tools

Stats

Related questions

How to throttle a bag file? edit

2 Answers

Comments

Question Tools

Stats

Related questions

How to throttle a bag file?