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how to read a rosbag in python?

asked 2022-04-12 02:52:24 -0500

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Hi,

So I want to read a rosbag with the help of a python script. The rosbag contains many topics but I am mainly interested in reading the "sensor_msgs/Pointcloud2" messages. I have found 2 libraries such as "rosbags" and "bagpy" but I am not sure which one is the best to use. Does anyone have some advice or experience with these two libraries?

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answered 2022-04-12 09:08:26 -0500

FurkanEdizkan
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Below code is from official wiki and clearly explains what needs to be done to get bag data with python. Hope it helps!

import rosbag
bag = rosbag.Bag('test.bag')
for topic, msg, t in bag.read_messages(topics=['chatter', 'numbers']):
    print(msg)
bag.close()

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Asked: 2022-04-12 02:52:24 -0500

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Last updated: Apr 12 '22

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how to read a rosbag in python?