rosbag play with --clock publishes time. That's the whole point of --clock. If the playback stops, ROS time will also stop and thus the rate never gets forward. If the Rate is just supposed to happen every 0.1s to limit the loop (i.e. tied to the real world, not ROS time), you can use a WallRate instead (not sure if that exists in rospy) ros::spinOnce(); loop_rate.sleep(); ++count; ros::spinOnce() is analogous to the main function of the ROS framework. Whenever you are subscribed to one or many topics, the callbacks for receiving messages on those topics are not called immediately. Instead they are placed in a queue which is processed when you call ros::spinOnce()

10 Jul 2017 Sleeping and Rates; Wall Time ROS has builtin time and duration primitive types, which roslib provides as the ros::Time and ros::Duration  Sets the start time for the rate to now. bool, sleep (). Sleeps for any leftover time in a cycle. Calculated from the last time sleep, reset, or the constructor was called  The ROS way of doing this is: rate = rospy.Rate(1) # 1 Hz # Do stuff, maybe in a while loop rate.sleep() # Sleeps for 1/rate sec. Or the similar: ros::spin() and ros::spinOnce() are resposible to handle communication events, e.g. arriving messages. If you are subscribing messages,  You just create a ROS Rate with a given frequency in your code, and use the sleep() functionality to wait until the next iteration. ROS Rate is different from a “ simple  Sleeping and Rates; Timer. Time and Duration. ROS has builtin time and duration primitive types, which rospy provides as the rospy.Time and rospy. Duration  18 Jul 2019 Rate (ROS Python) and ros::Rate (ROS C++) in places where they are not 10Hz while not rospy.is_shutdown(): # do some work r.sleep().

18 Jul 2019 Rate (ROS Python) and ros::Rate (ROS C++) in places where they are not 10Hz while not rospy.is_shutdown(): # do some work r.sleep().

loop_rate.sleep(); ++count; ros::spinOnce() is analogous to the main function of the ROS framework. Whenever you are subscribed to one or many topics, the callbacks for receiving messages on those topics are not called immediately. Instead they are placed in a queue which is processed A ros::Rate object allows you to specify a frequency that you would like to loop at. It will keep track of how long it has been since the last call to Rate::sleep(), and sleep for the correct amount of time. In this case we tell it we want to run at 10hz. ROS Driver for e-puck robot. Contribute to gctronic/epuck_driver development by creating an account on GitHub. The sleep cycle begins with non-REM sleep, before moving into the REM sleep stage. The first phase of REM usually lasts for 10 minutes, with each phase getting progressively longer.

The sleep cycle begins with non-REM sleep, before moving into the REM sleep stage. The first phase of REM usually lasts for 10 minutes, with each phase getting progressively longer.

23 Sep 2014 Now that you're familiar with ROS, it's time to get deep into what ROS is // Delays untill it is time to send another message rate.sleep(); } }.

Sleeping and Rates; Timer. Time and Duration. ROS has builtin time and duration primitive types, which rospy provides as the rospy.Time and rospy. Duration 

10 Jul 2017 Sleeping and Rates; Wall Time ROS has builtin time and duration primitive types, which roslib provides as the ros::Time and ros::Duration  Sets the start time for the rate to now. bool, sleep (). Sleeps for any leftover time in a cycle. Calculated from the last time sleep, reset, or the constructor was called  The ROS way of doing this is: rate = rospy.Rate(1) # 1 Hz # Do stuff, maybe in a while loop rate.sleep() # Sleeps for 1/rate sec. Or the similar: ros::spin() and ros::spinOnce() are resposible to handle communication events, e.g. arriving messages. If you are subscribing messages,  You just create a ROS Rate with a given frequency in your code, and use the sleep() functionality to wait until the next iteration. ROS Rate is different from a “ simple  Sleeping and Rates; Timer. Time and Duration. ROS has builtin time and duration primitive types, which rospy provides as the rospy.Time and rospy. Duration 

ROS与C++入门教程-Time(时间)说明：介绍ros时间和持续时间的使用时间和间隔 ros::Rate r(10); // 10 hz while (ros::ok()) { do some work r.sleep(); }. 以10hz 

So ros::spinOnce() gives you more control if needed. More on that matter here: Callbacks and Spinning. rate.sleep() on the other hand is merely a thread sleep with duration defined be a frequency. Here is an example. ros::Rate rate(24.); while(ros::ok()) { rate.sleep(); }

23 Sep 2014 Now that you're familiar with ROS, it's time to get deep into what ROS is // Delays untill it is time to send another message rate.sleep(); } }.