I'm currently working with ros2 nodes generated from simulink, and I need several instances of these nodes with different names running in the same network.
Using Humble, R2023b and Ubuntu 22.04 I don't need the workaround used in this previous question to launch each node.
However, the namespace is only applied to the node name, not to the topics.
Is it a bug? Or is this functionality still in development?
Just in case, I add the python launch file:
from launch import LaunchDescription
from launch_ros.actions import Node
from launch.actions import DeclareLaunchArgument
from launch.substitutions import LaunchConfiguration
def generate_launch_description():
# Declare the namespace launch argument
namespace = DeclareLaunchArgument(
description='Namespace for the ROS2 node'
# Define the launch value for the namespace
namespace_arg = LaunchConfiguration('car_namespace')
# Launch the ROS2 node with the specified namespace, package, and executable
package='car_control_system',
executable='CAR_CONTROL_SYSTEM',
return LaunchDescription([
