在ROS2的gmapping算法的python完整代码
时间: 2024-10-21 14:07:30 浏览: 35
ROS Robotics Projects 2017 Python
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ROS2(Robot Operating System)是一个开源的机器人操作系统,而gmapping是其自带的一个SLAM(Simultaneous Localization And Mapping)算法,主要用于创建环境地图。完整的GMapping Python代码通常包含几个关键部分:初始化、消息处理、传感器模拟以及 Slam 算法本身。
以下是一个简化版的gmapping节点Python代码示例,这只是一个基础框架,实际运行会更复杂,并需要依赖ros2包和其他库:
```python
# 导入必要的ROS2包
import rclpy
from rclpy.node import Node
from nav2_msgs.msg import Odometry
from geometry_msgs.msg import PoseWithCovarianceStamped
from sensor_msgs.msg import LaserScan
from nav2_common.geometry import Pose, Point, Quaternion
class GMappingNode(Node):
def __init__(self):
super().__init__('gmapping_node')
# 初始化 gmapping 节点参数
self.create_subscription(LaserScan, 'scan', self.scan_callback, 10)
self.create_publisher(PoseWithCovarianceStamped, 'map_update', 10)
def scan_callback(self, data: LaserScan):
# 获取传感器数据并处理
# 这里假设你已经有了对激光扫描数据的解析和姿态估计
scan_data = process_scan(data)
# 发布地图更新信息
pose_msg = PoseWithCovarianceStamped()
pose_msg.header.stamp = self.get_clock().now().to_msg()
pose_msg.pose.pose.position.x = scan_data[0].x
pose_msg.pose.pose.position.y = scan_data[0].y
pose_msg.pose.pose.orientation.w = scan_data[0].orientation.w
self.publish('map_update', pose_msg)
def main(args=None):
rclpy.init(args=args)
node = GMappingNode()
try:
rclpy.spin(node)
except KeyboardInterrupt:
pass
finally:
node.destroy_node()
rclpy.shutdown()
if __name__ == '__main__':
main()
```
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