In the rosbag/Code API, we could see the msg by:
import rosbag
bag = rosbag.Bag('test.bag')
for topic, msg, t in bag.read_messages(topics=['chatter', 'numbers']):
print msg
bag.close()
When I try this, I see several msg entries. How could I select only one of entries to display?
Like, for example. How could I get the data vector only?
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