ROS Resources: Documentation | Support | Discussion Forum | Index | Service Status | ros @ Robotics Stack Exchange |
2020-12-05 07:54:28 -0500 | received badge | ● Autobiographer |
2019-10-03 05:06:57 -0500 | received badge | ● Student (source) |
2015-12-08 09:56:29 -0500 | received badge | ● Famous Question (source) |
2015-12-08 09:56:29 -0500 | received badge | ● Notable Question (source) |
2015-10-29 05:20:40 -0500 | received badge | ● Enthusiast |
2015-10-26 14:50:26 -0500 | received badge | ● Famous Question (source) |
2015-08-13 06:18:29 -0500 | received badge | ● Notable Question (source) |
2015-08-12 07:41:54 -0500 | received badge | ● Popular Question (source) |
2015-08-12 04:35:36 -0500 | answered a question | Possibility of moving the ur10 universal robot with respect to the action goals being updated in its ROS topic "/follow_joint_trajectory/goal"? I solved my problem regarding why the ur10 robot was not moving. The conclusion which i stated before is right. The action goals which i am publishing in the first place has to be filled with relevant header info, stamp info of goal_id and time_from_start of the trajectory field present within the goal object of the action goal itself. The thing which was really missing was the actionlib::SimpleActionCleint interface which is required to send the goal to the ur10 robot (here the ur10 robot acts like a server). I referred to this link Moving the arm using the Joint Trajectory Action to realize how to move the ur10 arm. If anyone is facing a similar problem, please let me know. BR, Sriniwas |
2015-07-20 07:42:10 -0500 | received badge | ● Popular Question (source) |
2015-07-15 10:07:26 -0500 | asked a question | Possibility of moving the ur10 universal robot with respect to the action goals being updated in its ROS topic "/follow_joint_trajectory/goal"? Dear ROS developers & users, Let me formulate my situation. Aim :: To move the ur10 universal robot with respect to the updated action goals which are being published to its corresponding ROS topic "/follow_joint_trajectory/goal" Things performed ::
For the sake of completeness, the complete message structure of "control_msgs/FollowJointTrajectoryActionGoal" looks in the following manner. ros@rosPC:~$ rosmsg show control_msgs/FollowJointTrajectoryActionGoal std_msgs/Header header uint32 seq time stamp string frame_id actionlib_msgs/GoalID goal_id time stamp string id control_msgs/FollowJointTrajectoryGoal goal trajectory_msgs/JointTrajectory trajectory control_msgs/JointTolerance[] path_tolerance control_msgs/JointTolerance[] goal_tolerance duration goal_time_tolerance
Field --- Object => Class (My interpretation of the message structure) std_msgs/Header header => control_msgs/FollowJointTrajectoryActionGoal time stamp ---- actionlib_msgs/GoalID goal_id => control_msgs/FollowJointTrajectoryActionGoal std_msgs/Header header => trajectory_msgs/JointTrajectory trajectory duration time_from_start ---- trajectory_msgs/JointTrajectoryPoint[] points => trajectory_msgs/JointTrajectory trajectory duration goal_time_tolerance => control_msgs/FollowJointTrajectoryActionGoal
Typical action goal published to the ROS topic "/follow_joint_trajectory/goal" and the message looks in the following way. header: goal_id: goal: path_tolerance: - goal_tolerance: - goal_time_tolerance: ros@rosPC:~$ rostopic echo /follow_joint_trajectory/goal Result :: Even though the action goals are published on the desired ROS topic (i.e., "/follow_joint_trajectory/goal"), ur10 robot doesn't move at all Conclusion drawn from the result :: May be I have to fill the neglected parts ... (more) |
2015-06-05 05:27:48 -0500 | asked a question | Gazebo GUI Error [Param.cc 181]:: Unable to set value [1,0471975511965976] and [0,100000001] This question has been asked before in this forum at least once ( http://answers.ros.org/question/19940... ). Nevertheless, i haven't found the cause behind the occurrence of the following Gazebo GUI errors, Things performed :: I successfully installed ROS Indigo on Ubuntu (Description: 14.04.02 LTS, Codename: Trusty) 64-bit virtual machine by following the instructions from the website http://wiki.ros.org/indigo/Installati... . Later, i tried to launch the gazebo simulator to visualize universal robot by going through the tutorial mentioned in the website http://wiki.ros.org/universal_robot/T... . The following is the result of launching the gazebo simulator :: (more) |