README

1. Objective

1. comprehend the concept of ROS Node, Topic, Message
2. see how tf works
3. learn how to use them in code by a simple turtlesim example

2. Task

1. leader turtle is controlled by keyboard inputs and the other turtle is programmed to follow it.
2. complete turtle_chase.py by group.

3. utils

3.1 How to compile your workspace

# init own workspace as manual-Appendix A.4
$ cd catkin_(yourID)
$ catkin_make

3.2 How to source your workspace (before open a new terminal )

$ cd catkin_(yourID)
$ source devel/setup.bash

3.3 How to make your script executable

$ cd catkin_(yourID)/src/lab2pkg_turtle/scripts 
$ chmod +x turtle_chase.py
$ chmod +x turtle_spawn.py
$ chmod +x turtle_tf2_broadcaster.py

3.4 How to run your code

# run demo
$ roslaunch lab2pkg_turtle turtle_tf2_demo.launch
# run turtle_chase
$ roslaunch lab2pkg_turtle turtle_chase.launch

example