XTDrone/control/rover_self_driving.py

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2020-05-14 12:50:41 +08:00
import rospy
from geometry_msgs.msg import Twist
from std_msgs.msg import Int16
Kp = 0.003
Vx = 3
def lane_mid_error_callback(msg):
global twist
if abs(msg.data) > 20:
twist.linear.x = Kp * msg.data
else:
twist.linear.x = 0.0
twist.linear.y = Vx * (1 - twist.linear.x)
if __name__ == "__main__":
rospy.init_node('rover_self_driving')
cmd_vel_flu_pub = rospy.Publisher('/xtdrone/rover_0/cmd_vel_flu', Twist, queue_size=2)
lane_mid_error_sub = rospy.Subscriber("/rover_0/lane_mid_error",Int16,callback=lane_mid_error_callback)
twist = Twist()
rate = rospy.Rate(50)
while not rospy.is_shutdown():
cmd_vel_flu_pub.publish(twist)
rate.sleep()