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cs:ros:rosbag:start [2016/10/08 17:32] James Irwin created |
cs:ros:rosbag:start [2016/10/08 19:12] (current) Brandon Kallaher |
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| ROS bag is a nice tool for recording any data that you need to be able to play back at a later time. | ROS bag is a nice tool for recording any data that you need to be able to play back at a later time. | ||
| + | |||
| + | ==== Recording ==== | ||
| The normal usage is: | The normal usage is: | ||
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| rosbag record <TOPIC1> ... <TOPIC(N)> | rosbag record <TOPIC1> ... <TOPIC(N)> | ||
| | | ||
| - | If you want to | + | If you want to output to a file with a timestamp and specific prefix: |
| + | |||
| + | rosbag record -o <PREFIX> <TOPIC1> ... <TOPIC(N)> | ||
| + | |||
| + | In general we use this format for recording bag files: | ||
| + | |||
| + | rosbag record -a -o <PREFIX> | ||
| + | |||
| + | ==== Playback ==== | ||
| + | |||
| + | The normal usage is: | ||
| + | |||
| + | rosbag play <BAG_FILE1> ... <BAG_FILE(N)> | ||
| + | |||
| + | To play back a specific topic from the bag file: | ||
| + | |||
| + | rosbag play --topics <TOPIC1> ... <TOPIC(N)> <BAG_FILE1> ... <BAG_FILE(N)> | ||
| + | |||
| + | ==== Info ==== | ||
| + | |||
| + | To see information about a bag file, rosbag info can help. | ||
| + | |||
| + | rosbag info <BAG_FILE1> ... <BAG_FILE(N)> | ||
