With custom args:
ros2 launch turtlebot3_custom_launcher simulation.launch.py \
world_name:=empty_world.world \
num_robots:=3
Tip
You can find other the available args via
ros2 launch turtlebot3_custom_launcher simulation.launch.py --show-args
You can change the monitor topic name with model_states_topic:=<topic_name>
ros2 run turtlebot3_custom_launcher trajectory_plotter_node
Important
model_states
topic must be published with the gazebo_ros_state
plugin.
You can clone my fork: kotokaze/turtlebot3_simulations to the src
directory of your workspace and build it.
See this commit for the changes.