1. 내가 정의한 메세지 사용하기

1. 코드 수정

import rclpy as rp
from rclpy.node import Node
from my_first_package_msgs.msg import CmdAndPoseVel
from turtlesim.msg import Pose

class CmdAndPose(Node):

    def __init__(self):
        super().__init__('turtle_cmd_pose')
        self.sub_pose = self.create_subscription(
                Pose,
                '/turtle1/pose',
                self.callback_pose,
                10
            )

        self.cmd_pose = CmdAndPoseVel()

    def callback_pose(self, msg):
        self.cmd_pose.pose_x = msg.x
        self.cmd_pose.pose_y = msg.y
        self.cmd_pose.linear_vel = msg.linear_velocity
        self.cmd_pose.angular_vel = msg.angular_velocity
        print(self.cmd_pose)

def main(args=None):
    rp.init(args=args)

    turtle_cmd_pose_node = CmdAndPose()
    rp.spin(turtle_cmd_pose_node)

    turtle_cmd_pose_node.destroy_node()
    rp.shutdown()

if __name__ == '__main__':
    main()

2. 빌드, 환경 부르기

3. 실행