Files
agv_pro_ros2/agv_pro_bringup/launch/agv_pro_bringup.launch.py
T

118 lines
3.5 KiB
Python

import os
from launch import LaunchDescription
from launch.conditions import IfCondition
from launch_ros.actions import Node,PushRosNamespace
from launch.actions import DeclareLaunchArgument,IncludeLaunchDescription
from launch.substitutions import Command,LaunchConfiguration,PythonExpression
from launch.launch_description_sources import PythonLaunchDescriptionSource
from ament_index_python.packages import get_package_share_directory
def include_lidar(pkg_name, launch_file, enable_lidar, lidar_type, expected_type):
return IncludeLaunchDescription(
PythonLaunchDescriptionSource(
os.path.join(
get_package_share_directory(pkg_name),
'launch',
launch_file
)
),
condition=IfCondition(
PythonExpression([
"'", enable_lidar, "' == 'true' and '",
lidar_type, "' == '", expected_type, "'"
])
)
)
def generate_launch_description():
port_name_arg = LaunchConfiguration('port_name')
namespace = LaunchConfiguration('namespace')
lidar_type = LaunchConfiguration('lidar_type')
enable_lidar = LaunchConfiguration('enable_lidar')
urdf_file = os.path.join(
get_package_share_directory('agv_pro_description'),
'urdf',
'agv_pro.urdf'
)
robot_description_content = Command([
'xacro ',
urdf_file,
' namespace:=',
PythonExpression(['"', namespace, '" + "/" if "', namespace, '" != "" else ""']),
])
declare_port_name_arg = DeclareLaunchArgument(
'port_name',
default_value='/dev/agvpro_controller',
description='port name, e.g. /dev/ttyACM0'
)
declare_namespace_arg = DeclareLaunchArgument(
'namespace',
default_value='',
description='Namespace for nodes'
)
declare_enable_lidar_arg = DeclareLaunchArgument(
'enable_lidar',
default_value='true',
description='Whether to launch lidar drivers'
)
declare_lidar_type_arg = DeclareLaunchArgument(
'lidar_type',
default_value='n10p',
description='Lidar type: n10p | mid360 | l2'
)
ns_action = PushRosNamespace(namespace)
agv_pro_node = Node(
package='agv_pro_base',
executable='agv_pro_node',
name='agv_pro_node',
output='screen',
parameters=[{
'port_name': port_name_arg,
'namespace': namespace,
}],
remappings=[('cmd_vel', '/cmd_vel')]
)
joint_state_pub = Node(
package='joint_state_publisher',
executable='joint_state_publisher',
name='joint_state_publisher'
)
robot_state_pub = Node(
package='robot_state_publisher',
executable='robot_state_publisher',
name='robot_state_publisher',
parameters=[{'robot_description': robot_description_content}],
output='screen'
)
lidar_launchs = [
include_lidar('lslidar_driver', 'lsn10p_launch.py', enable_lidar, lidar_type, 'n10p'),
include_lidar('livox_ros_driver2', 'msg_MID360_launch.py',enable_lidar, lidar_type, 'mid360'),
include_lidar('unitree_lidar_ros2', 'launch.py', enable_lidar, lidar_type, 'l2'),
]
return LaunchDescription(
[
declare_port_name_arg,
declare_namespace_arg,
declare_enable_lidar_arg,
declare_lidar_type_arg,
ns_action,
agv_pro_node,
joint_state_pub,
robot_state_pub,
*lidar_launchs,
]
)