ROS Resources: Documentation | Support | Discussion Forum | Index | Service Status | ros @ Robotics Stack Exchange
Ask Your Question

Long Smith's profile - activity

2022-06-19 23:30:15 -0500 received badge  Stellar Question (source)
2020-12-29 00:47:19 -0500 received badge  Good Question (source)
2020-11-02 08:07:10 -0500 received badge  Favorite Question (source)
2020-11-01 17:58:09 -0500 received badge  Nice Question (source)
2020-10-08 20:59:11 -0500 marked best answer What is the difference between joint_state_publisher and joint_state_controller?

So the question is in the title. It looks like both of them do the same thing, don't they? Is there any reason to prefer one over another?

Thanks!

2020-06-22 05:10:32 -0500 received badge  Taxonomist
2020-06-09 01:29:38 -0500 received badge  Famous Question (source)
2020-01-06 21:45:56 -0500 received badge  Famous Question (source)
2020-01-06 21:45:56 -0500 received badge  Notable Question (source)
2020-01-06 21:45:56 -0500 received badge  Popular Question (source)
2019-09-20 02:19:14 -0500 marked best answer rqt_plot does not see backends

I have installed QWT and its' bindings for both python2 and python3. Moreover I have installed pyqtgraph but no one of them is available in settings. So I stuck to matplotlib which is extremely slow.

Did anyone meet this problem?

P.S. OS is Ubuntu 16.04, ROS Kinetic

2019-01-30 04:27:51 -0500 received badge  Notable Question (source)
2018-11-21 07:44:03 -0500 received badge  Famous Question (source)
2018-11-20 15:56:26 -0500 commented question Symbol lookup error when using stomp_moveit.

@DieterWuytens I have commented lines 85 and 250 in stomp_moveit/src/noisy_filters/multi_trajectory_visualization.cpp. I

2018-11-04 01:40:32 -0500 received badge  Notable Question (source)
2018-11-03 15:50:04 -0500 received badge  Popular Question (source)
2018-10-22 10:04:25 -0500 received badge  Popular Question (source)
2018-10-17 13:12:36 -0500 asked a question Newton-Euler inverse dynamics.

Newton-Euler inverse dynamics. I need to implement newton-euler inverse dynamics algorithm which in case requires forwar

2018-10-17 12:44:54 -0500 received badge  Famous Question (source)
2018-10-16 10:36:11 -0500 received badge  Famous Question (source)
2018-09-14 13:12:19 -0500 received badge  Notable Question (source)
2018-09-14 07:14:36 -0500 received badge  Popular Question (source)
2018-09-14 01:54:42 -0500 asked a question What is the difference between joint_state_publisher and joint_state_controller?

What is the difference between joint_state_publisher and joint_state_controller? So the question is in the title. It loo

2018-08-24 10:30:30 -0500 edited question Symbol lookup error when using stomp_moveit.

Symbol lookup error when using stomp_moveit. One more symbol lookup question for ros answers. I run the example for pan

2018-08-24 09:35:04 -0500 asked a question Symbol lookup error when using stomp_moveit.

Symbol lookup error when using stomp_moveit. One more symbol lookup question for ros answers. I run the example for pan

2018-08-24 09:04:13 -0500 commented answer MoveIt! RViz display plugin does not show the robot correctly (Melodic)

Thanks! Just encountered the same problem.

2018-08-24 01:30:45 -0500 asked a question Run-time dependencies.

Run-time dependencies. Could anyone clarify for me please what packages should be specified as run-time dependencies def

2018-08-15 16:31:54 -0500 received badge  Famous Question (source)
2018-07-01 05:17:25 -0500 edited question In what space does MoveIT plan paths?

In what space does MoveIT plans paths? I have two questions about how does MoveIT plan paths: If my target is defined

2018-07-01 05:17:19 -0500 edited question In what space does MoveIT plan paths?

In what space does MoveIT plans paths? I have two questions about how does MoveIT plan paths: If my target is defined

2018-07-01 05:17:19 -0500 received badge  Editor (source)
2018-07-01 05:15:23 -0500 marked best answer In what space does MoveIT plan paths?

I have two questions about how does MoveIT plan paths:

  1. If my target is defined in a task space, does MoveIT convert the target into c-space by solving IK and then plans in configuration space or does it look for a plan in task space and then converts trajectory into c-space?

  2. If my target is defined as joint values does in convert it to corresponding task space pose using forward kinematics and looks for a path in a task space?

I am worried about it because if planning is always performed in task space then collision detection requires to solve IK on each planning iteration which can work quite slow when IK is solved using Jacobian based solvers.

2018-06-30 01:26:13 -0500 received badge  Notable Question (source)
2018-06-29 13:53:45 -0500 received badge  Popular Question (source)
2018-06-29 09:57:57 -0500 asked a question In what space does MoveIT plan paths?

In what space does MoveIT plans paths? I have two questions about how does MoveIT plan paths: If my target is defined

2018-05-25 04:49:27 -0500 received badge  Notable Question (source)
2018-04-18 21:44:59 -0500 received badge  Famous Question (source)
2018-03-27 04:12:01 -0500 received badge  Famous Question (source)