Example to use message_filters in ROS

Run the Code

Terminal 1

roscore

Terminal 2

git clone git@github.com:aravindk2604/test_ws.git
cd ~/test_ws/
catkin_make
source devel/setup.bash
roslaunch learn_msg_filter combined.launch

Terminal 3

cd ~/test_ws/
source devel/aetup.bash
rosrun learn_msg_filter combinedNode

Documentation

A moderate explanation of what happens in this ROS package is written as a blog post on my website here.

Suggestions to improve this example are most welcome. This was an attempt for me to understand and use message_filters for a datatype different from the commonly used Image and CameraInfo topics under sensor_msgs as given in the official ROS Wiki page.