advanced_publish.py
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00001 #!/usr/bin/env python
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00034 # Revision $Id: talker.py 4223 2009-04-16 21:47:54Z jfaustwg $
00035 
00036 ## talker demo that published std_msgs/ColorRGBA messages
00037 ## to the 'color' topic. To see these messages, type:
00038 ##   rostopic echo color
00039 ## this demo shows some of the more advanced APIs in rospy.
00040 
00041 import roslib; roslib.load_manifest('rospy_tutorials')
00042 
00043 import rospy
00044 from std_msgs.msg import ColorRGBA
00045 
00046 def talker():
00047     topic = 'color'
00048     pub = rospy.Publisher(topic, ColorRGBA)
00049     rospy.init_node('color_talker', anonymous=True)
00050     print "\n\nNode running. To see messages, please type\n\t'rostopic echo %s'\nIn another window\n\n"%(rospy.resolve_name(topic))
00051     while not rospy.is_shutdown():
00052 
00053         # publish with in-order initialization of arguments (r, g, b, a)
00054         pub.publish(1, 2, 3, 4)
00055         rospy.sleep(.5)
00056 
00057         # publish with a=1, use default values for rest
00058         pub.publish(a=1.0)
00059         rospy.sleep(.5)
00060 
00061         # print the number of subscribers
00062         rospy.loginfo("I have %s subscribers"%pub.get_num_connections())
00063         
00064 if __name__ == '__main__':
00065     try:
00066         talker()
00067     except rospy.ROSInterruptException: pass


rospy_tutorials
Author(s): Ken Conley
autogenerated on Mon Oct 6 2014 06:54:54