turtle_tf_message_broadcaster.py
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1 #!/usr/bin/env python
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33 #!/usr/bin/env python
34 
35 import rospy
36 
37 import turtlesim.msg
38 import geometry_msgs.msg
39 import turtlesim.srv
40 from geometry_msgs.msg import PointStamped, Point
41 from std_msgs.msg import Header
42 
43 
45  def handle_turtle_pose(self, msg, turtlename):
46  self.pub.publish(PointStamped(Header(0, rospy.rostime.get_rostime(), "/world"), Point(msg.x, msg.y, 0)))
47 
48  def __init__(self):
49  self.turtlename = "turtle3" # rospy.get_param('~turtle')
50  self.sub = rospy.Subscriber('/%s/pose' % self.turtlename,
51  turtlesim.msg.Pose,
52  self.handle_turtle_pose,
53  self.turtlename)
54  self.pub = rospy.Publisher('turtle_point_stamped', PointStamped, queue_size=1)
55 
56 if __name__ == '__main__':
57  rospy.init_node('turtle_tf_msg_broadcaster')
58  rospy.wait_for_service('spawn')
59  spawner = rospy.ServiceProxy('spawn', turtlesim.srv.Spawn)
60  spawner(4, 2, 0, 'turtle3')
61 
63 
64  pub = rospy.Publisher("turtle3/cmd_vel", geometry_msgs.msg.Twist, queue_size=1)
65  while not rospy.is_shutdown():
66  msg = geometry_msgs.msg.Twist()
67  msg.linear.x = 1
68  msg.angular.z = 1
69  pub.publish(msg)
70  rospy.sleep(rospy.Duration(0.1))


turtle_tf
Author(s): James Bowman, Isaac Saito
autogenerated on Mon Jun 10 2019 13:24:44