* 방법
<node pkg="rosbag" type="play" name="player" output="screen"
args="[your bag].bag
--clock -r 1.0 -s 0
--topics [your topic]"/>
* Reference
https://answers.ros.org/question/62811/how-to-play-rosbag-using-launch-file/
How to play rosbag using launch file ? - ROS Answers: Open Source Q&A Forum
How to play rosbag using launch file ? edit I'm trying to play a bagfile using following launch file. However, it gave me an error like this when I launch it. [FATAL] [1368634083.754058723]: Error opening file: 8tags.bag [rosbag-1] process has died [pid 14
answers.ros.org
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