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hi, i read this tutorial link text) but i don't understand this lines:
ros::Subscriber sub1 = n.subscribe("sonarBearing", 100, bearingCB); ros::Subscriber sub2 = n.subscribe("sonarBinsArr", 100, binsArrCB);
can you explain it to me please?
The Subscriber keeps to listen the topic which have been published. So, in this example, the subscriber sub1 keeps subscribe the topic sonarBearing, 100 is the queue size and the bearingCB is the name of callback function.
Have a look of this tutorial, I think it could help you to realize.
Asked: 2016-04-22 18:10:12 -0600
Seen: 861 times
Last updated: Oct 07 '19
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