planning_benchmark_bringup.py

# Copyright (c) 2022 Samsung Research America
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
 
import os
 
from ament_index_python.packages import get_package_share_directory
from launch import LaunchDescription
from launch.actions import IncludeLaunchDescription
from launch.launch_description_sources import PythonLaunchDescriptionSource
from launch_ros.actions import Node
 
 
def generate_launch_description() -> LaunchDescription:
    nav2_bringup_dir = get_package_share_directory('nav2_bringup')
    config = os.path.join(
        get_package_share_directory('nav2_bringup'), 'params', 'nav2_params.yaml'
    )
    map_file = os.path.join(nav2_bringup_dir, 'maps', 'tb3_sandbox.yaml')
    lifecycle_nodes = ['map_server', 'planner_server']
 
    return LaunchDescription(
        [
            Node(
                package='nav2_map_server',
                executable='map_server',
                name='map_server',
                output='screen',
                parameters=[
                    {'use_sim_time': True},
                    {'yaml_filename': map_file},
                    {'topic_name': 'map'},
                ],
            ),
            Node(
                package='nav2_planner',
                executable='planner_server',
                name='planner_server',
                output='screen',
                parameters=[config],
            ),
            Node(
                package='tf2_ros',
                executable='static_transform_publisher',
                output='screen',
                arguments=[
                    '--x', '0',
                    '--y', '0',
                    '--z', '0',
                    '--roll', '0',
                    '--pitch', '0',
                    '--yaw', '0',
                    '--frame-id', 'base_link',
                    '--child-frame-id', 'map'
                ],
            ),
            Node(
                package='tf2_ros',
                executable='static_transform_publisher',
                output='screen',
                arguments=[
                    '--x', '0',
                    '--y', '0',
                    '--z', '0',
                    '--roll', '0',
                    '--pitch', '0',
                    '--yaw', '0',
                    '--frame-id', 'base_link',
                    '--child-frame-id', 'odom'
                ],
            ),
            Node(
                package='nav2_lifecycle_manager',
                executable='lifecycle_manager',
                name='lifecycle_manager',
                output='screen',
                parameters=[
                    {'use_sim_time': True},
                    {'autostart': True},
                    {'node_names': lifecycle_nodes},
                ],
            ),
            IncludeLaunchDescription(
                PythonLaunchDescriptionSource(
                    os.path.join(nav2_bringup_dir, 'launch', 'rviz_launch.py')
                ),
                launch_arguments={'namespace': ''}.items(),
            ),
        ]
    )