Editing rosbags

The tools folder contains scripts for cutting, remapping and adjusting the timestamps of rosbags. Usage is as follow:

To extract a section of a bag:

$ python cut.py --inbag <path_of_input_bag> --outbag <path_of_output_bag> --start <start_in_seconds> --duration <duration>

To add a prefix to every topic in a bag (eg. /ugv1):

$ python remap_bag.py -i <path_of_input_bag> -o <path_of_output_bag> -p <prefix>

To add an offset to each header time in a bag (for selected topics eg. /tf /scan_filtered):

$ python add_header_time_offset.py -u <offset> -i <path_of_input_bag> -o <path_of_output_bag> -t <topics_separated_with_spaces>