ros2使用python判断是否到达目标点
时间: 2023-06-05 15:05:24 浏览: 241
很高兴能够回答您的问题。关于您提出的问题,我可以告诉您:可以使用ROS2的Python库中提供的move_base_msgs包来判断是否到达目标点。您可以使用以下代码实现该功能:
``` python
import rclpy
from rclpy.node import Node
from geometry_msgs.msg import PoseStamped
from builtin_interfaces.msg import Time
from rclpy.duration import Duration
class MinimalSubscriber(Node):
def __init__(self):
super().__init__('minimal_subscriber')
self.subscription = self.create_subscription(
PoseStamped,
'goal_pose_topic',
self.listener_callback,
10)
self.msg_reception_time = Time()
self.msg_received = False
def listener_callback(self, msg):
self.msg_received = True
self.msg_reception_time = self.get_clock().now()
def main(self):
while rclpy.ok():
if self.msg_received and self.get_clock().now() - self.msg_reception_time > Duration(seconds=5.0):
self.get_logger().info('Robot reached the goal position!')
self.msg_received = False
rclpy.spin_once(self)
def main(args=None):
rclpy.init(args=args)
minimal_subscriber = MinimalSubscriber()
minimal_subscriber.main()
minimal_subscriber.destroy_node()
rclpy.shutdown()
if __name__ == '__main__':
main()
```
在这个例子中,我们监听名为“goal_pose_topic”的主题,该主题包含我们要到达的目标位置的坐标信息。当接收到该消息时,我们将msg_received设置为True以表示到达目标位置。
希望能帮助您解决问题,如果您有其他问题,可以随时问我。
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