I don’t understand what is being asked in this exercise 9.3 in the pic below. I, surely, will create a package using catkin_create_pkg and create a .launch file and then put a publisher and subscriber. But, firstly I’m guessing that’s not what is asked for(correct?)…
- Even if I create a package using the method I said above(considering that’s what is asked for), what topic would I use for publisher and subscriber, and what message type?
- Similarly, it says to filter ros_graph to show two nodes with a topic of your interest, How would I do that through coding inside a .py file(If that is what I am supposed to do)?
Abdul Basit Dost