def message_publisher():
rospy.init_node('message_publisher')
pub = rospy.Publisher('complex', Complex, queue_size=5)
rate = rospy.Rate(2)
while not rospy.is_shutdown():
msg = Complex()
msg.real = random()
msg.imaginary = random()
pub.publish(msg)
rate.sleep()
def msg_pub():
rospy.init_node('message_publisher')
pub = rospy.Publisher('complex',Complex,queue_size=10)
rate = rospy.Rate(1)
count = 0
while not rospy.is_shutdown():
msg = Complex()
msg.real = random()
msg.imaginary = random()
rospy.loginfo("Complex number %d is %f + %fi", count, msg.real, msg.imaginary)
pub.publish(msg)
count +=1
rate.sleep()
def msg_pub():
rospy.init_node('message_publisher')
pub = rospy.Publisher('complex',Complex,queue_size=1)
rate = rospy.Rate(1)
count = 0
while not rospy.is_shutdown():
msg = Complex()
#Alternatively we can use keyword arguments to initialize the message class
# msg = Complex(real=2.3,imaginary=4.6) or msg = Complex(real=1.2)
msg.real = random()
msg.imaginary = random()
# rospy.loginfo("real = %f ,imaginary = %f", msg.real,msg.imaginary)
rospy.loginfo("Complex number %d is %f + %fi", count, msg.real,msg.imaginary)
pub.publish(msg)
count +=1
rate.sleep()
def msg_pub():
rospy.init_node('message_publisher')
pub = rospy.Publisher('complex',Complex,queue_size=10)
rate = rospy.Rate(1)
count = 0
while not rospy.is_shutdown():
msg = Complex()
# Alternatively we can use keyword arguments to initialize the message class. E.g.:
# 'msg = Complex(real=2.3, imaginary=4.6)' or 'msg = Complex(real=1.2)' or
# even 'msg = Complex(2.3, 4.6)'
msg.real = random()
msg.imaginary = random()
rospy.loginfo("Complex number %d is %f + %fi", count, msg.real, msg.imaginary)
pub.publish(msg)
count +=1
rate.sleep()
#!/usr/bin/env python
import rospy
from basics.msg import Complex
from random import random
rospy.init_node('topic_publisher')
pub = rospy.Publisher('complex', Complex)
rate = rospy.Rate(2)
while not rospy.is_shutdown():
msg = Complex()
msg.real = random()
msg.imaginary = random()
pub.publish(msg)
rate.sleep()
#!/usr/bin/env python
import rospy
from basics.msg import Complex
from random import random
rospy.init_node('message_publisher')
pub = rospy.Publisher('complex', Complex) # publisher, which calls Complex
rate = rospy.Rate(2)
while not rospy.is_shutdown():
msg = Complex() # calls message, Complex()
msg.real = random() # when real, random
msg.imaginary = random() # when imaginary, random
pub.publish(msg) # publish
rate.sleep()
#!/usr/bin/env python
import rospy
from basics.msg import Complex
from random import random
rospy.init_node('message_publisher')
pub = rospy.Publisher('complex', Complex, queue_size=10)
rate = rospy.Rate(2)
while not rospy.is_shutdown():
msg = Complex()
msg.real = random()
msg.imaginary = random()
pub.publish(msg)
rate.sleep()
def callback(msg):
ret_msg = Complex()
ret_msg.real = 2 * msg.real
ret_msg.imaginary = 2 * msg.imaginary
pub.publish(ret_msg)
