What did the author of the "Using the robot state publisher on your own robot" tutorial intend by their launch file example?
I am trying to figure out how to publish my robot's state using the 'robot_state_publisher'. I fortunately found the tutorial linked to above, but unfortunately the author was rather vague in their example of a launch file (copied below from the tutorial).
<launch>
<node pkg="robot_state_publisher" type="robot_state_publisher" name="rob_st_pub" >
<remap from="robot_description" to="different_robot_description" />
<remap from="joint_states" to="different_joint_states" />
</node>
</launch>
I would like to know if anyone can better explain what the difference is between 'robot_description' and 'different_robot_description' and exactly what information these are supposed to contain.