<?xml version="1.0"?> <launch> <arg name="waypoints_file" default="$(find waypoint_nav)/param/waypoints.yaml"/> <arg name="cmd_vel_topic_in" default="/move_base/cmd_vel"/> <arg name="cmd_vel_topic_out" default="/wp_nav/cmd_vel"/> <node name="waypoint_nav" pkg="waypoint_nav" type="waypoint_nav" output="screen"> <param name="filename" value="$(arg waypoints_file)"/> <remap from="/cmd_vel" to="$(arg cmd_vel_topic_out)"/> </node> <node name="velocity_controller" pkg="waypoint_nav" type="velocity_controller" output="screen"> <remap from="/cmd_vel_in" to="$(arg cmd_vel_topic_in)"/> <remap from="/cmd_vel_out" to="$(arg cmd_vel_topic_out)"/> </node> </launch>