ERROR: Unable to communicate with service [/clear], address...
Hi, I'm a freshman for ROS. Here I meet a problem as shown in the title: ERROR: Unable to communicate with service [/clear], address [rosrpc://xxx-GP62MVR-6RF:36963] when I type the "rosservice type...
View ArticleRECALLED: This goal was canceled because another goal was recieved by the...
I am running a service that is using `moveit_commander` for planning and executing a Cartesian trajectory with the panda robotic arm. It seems, that a few seconds after initialization of the moveit...
View ArticleService server and client in python following tutorial does not work
I'm trying to make a service that I could call to change a pose of a robotic arm using MoveIt!. I follow [this tutorial](http://wiki.ros.org/ROS/Tutorials/WritingServiceClient%28python%29), but I get...
View ArticleCalling predefined service from python script
Hi all, I am wondering how to pass an arguments when trying to call rosservice from python script. I have this server called bcap_service which takes 2 arguments. (This is bcap.srv) int32 func_id...
View Articlerosservice geometry_msgs/Posearray example
So, I'm getting an array of poses from the robot(from a python script say script1.py). And I want this array of poses to be used in another python script(script2.py). I would like to use rosservice to...
View ArticleCall a rosservice from inside another rosservice
Hi, I want to have a rosservice, “/update_goal” for example, which takes goal position (x, y, theta) as request. Once the goal is given as input, the agent should request planner for a path.I have...
View ArticleIn which order are callback functions in a node which offers a service and...
I want to use a node that both offers a service and subscribes to a topic. If, when ros::spin() is called I have both a new message in the topic and a request from the service, which callback function...
View Articlecatkin_make issue updating .srv and .cpp file simultaneously
Think of a situation where rosnode (written in c++) is using messages generated by a .srv file. You want to add a field to the .srv file and use it in the rosnode. If you make these changes...
View ArticleROS Service global name not defined
I am trying to make my node a ROS service which gets triggered when it receives boolean value of true, thus I have added the following to its constructor: self.imgproc_srv =...
View ArticleChanging MPC_XY_VEL_MAX in flight, in offboard, with python script
Hello, I am trying to figure out how to change the MPC_XY_VEL_MAX parameter in the px4 parameters via this code: At the top I have: from mavros_msgs.srv import * Then in a function under a class called...
View ArticleHow to delete the default turtle that is created using turtlesim in ros?
How do I proceed to do that? I would like to use rosservice call /kill " 'name_of_the_turtle' " Where do I find the name of the turtle?
View ArticleCan rosservice commands be used on topics
I saw the following line in [this wiki tutorial on ROS services and parameters](http://wiki.ros.org/ROS/Tutorials/UnderstandingServicesParams):> rosservice has many commands that can be used on...
View ArticleCan ROS service have union as data type
Hi I want to define ROS service taking two arguments.First argument is type and second argument type depends on type. For example if type = 1 then argument2 is CustomMsg1, if type = 2 then argument2...
View ArticleHow to identify same joint name in different robot when using ros service call?
I created three robots (robot_1, robot_2, robot_3) in one simulation which are identical. Those robots share the same link names and same joint names. When I call ros service, for example [rosservice...
View ArticleIs it possible to call a service from a callback function of a subcriber
My idea now is to use subscriber to obtain data ( nav_msgs::Path), and then pass it as a service request to a ros service server. Is this method possible? Do I need to consider the thread. Thank you!!
View ArticleRosservice doesn't show up when running server script
I'm getting a really weird error with a script I'm testing. import logging import os import subprocess import sys import gphoto2 as gp import rospy from std_msgs.msg import Empty from nav_msgs.msg...
View ArticleCalling service to UR I/O while performing shutdown
Hi, I am wondering if I can detect shutdown (for example by pressing ctrl+c) and send service before it closes down. I have a light connected to ur5's controller I/O and at the start of my program i am...
View Articleyaml error in rosservice call
Hi! I have a service defined as: string name uint8 some_int string a_file string[] array_of_strings float32[] array_of_floats float32[] array_of_floats_two --- bool successful And I am not able to...
View ArticleHow to make call to multiple services in parallel?
I have 4 services which have are completely independent of each other. I want to call them in parallel from another ros node. But the all service call end consuming the time that they would use in...
View ArticleAdvertise service from nodelets
I am trying to advertise a service from the nodelet. I am able to get the topic publisher/subscriber working fine, but the service is not being advertised. Platform: Ubuntu 16.04 + ROS Kinetic Here's...
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