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bag migration, fill new field with incrementing counter

asked 2015-03-06 02:04:52 -0500

Wolf gravatar image

Is it possible to fill a new message field in an old bag data with an incrementing counter using a bag migration rules file ( http://wiki.ros.org/rosbag/migration ) and rosbag fix?

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answered 2015-03-06 07:01:33 -0500

Wolf gravatar image

Yep it is (as simple as it should be)! Just create a counter and increment and assign it i update()

Snippet of the migration rules class, ( see http://wiki.ros.org/rosbag/migration ) :

migrated_types = [  ]

valid = True

counter = 0

def update(self, old_msg, new_msg):
    self.counter += 1
    new_msg.obj_id = self.counter
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Asked: 2015-03-06 02:04:52 -0500

Seen: 171 times

Last updated: Mar 06 '15