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2020-03-11 15:01:27 -0500 edited question rosnode ping /node only once

rosnode ping /node only once I need to use 'rosnode ping /node' command inside my rosnode source file. Is it possible to

2020-03-09 18:33:26 -0500 commented answer rosnode ping /node only once

Thanks for the response. Is it possible to suppress the output on the console, like quite mode as opposed to verbose mod

2020-03-09 18:31:34 -0500 marked best answer rosnode ping /node only once

I need to use 'rosnode ping /node' command inside my rosnode source file. Is it possible to ping a node only once? If I simply write "rosnode ping /node", it repeatedly pings the node for some duration. Any information or help regarding this would be much appreciated.

Thanks

PS: Is it possible to suppress the output on the console, like quite mode as opposed to verbose mode?

2020-03-06 13:18:16 -0500 asked a question rosnode ping /node only once

rosnode ping /node only once I need to use 'rosnode ping /node' command inside my rosnode source file. Is it possible to

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2019-03-22 07:44:39 -0500 commented question Call a rosservice from inside another rosservice

Hi @ahendrix, It is advertised by a node. I took close notice at the node, the service callback was receiving robot's fe

2019-03-21 01:56:41 -0500 asked a question Call a rosservice from inside another rosservice

Call a rosservice from inside another rosservice Hi, I want to have a rosservice, “/update_goal” for example, which ta

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2018-06-19 04:20:31 -0500 commented question ROS python script is not exiting after ctrl-C

It is resetting the world. But it keeps on printing "exiting..." over and over even after pressing ctrl-C.

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2018-06-18 13:00:02 -0500 asked a question ROS python script is not exiting after ctrl-C

ROS python script is not exiting after ctrl-C I am trying to reset model poses in gazebo on the even "rospy.on_shutdown(

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2018-03-14 18:55:20 -0500 asked a question spawn_model is not loading the urdf or sdf

spawn_model is not loading the urdf or sdf I am trying to convert mit_racecar's xacro files into sdf and use them direct

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2017-12-11 02:05:07 -0500 marked best answer How to clear the traces of the dynamic obstacle in a costmap?

Hi,

I am trying to get an instantaneous occupancy grid by using laser scanner (in stageros) and get the locations and dimensions of the obstacles. With the help of costmap_2d package, I am able to generate the occupancy grid but there is an issue with the moving obstacles. When only the main vehicle is moving and there are no dynamic obstacles, clearing is happening properly. But when there is a moving obstacle, the moving obstacle's occupancy information is not being updated and hence the traces are left behind.

Please refer to this video

I have set marking and clearing values to be true, and observation_persistence is also 0.0. I can't think of anything beyond these three parameters. Are there any other parameters I need to set? What could be the solution?

Please, help.

Thank you.

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2017-12-11 02:05:06 -0500 commented answer How to clear the traces of the dynamic obstacle in a costmap?

@IvanV Thanks for the response. Adding a wall behind the obstacles certainly worked, but in this scenario, I cannot have

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2017-12-01 06:07:29 -0500 asked a question Why stageros is crashing when multiple robots are commanded to move?

Why stageros is crashing when multiple robots are commanded to move? Hello, I am trying to simulate multiple car-like r

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2017-11-17 00:53:07 -0500 asked a question How to clear the traces of the dynamic obstacle in a costmap?

How to clear the traces of the dynamic obstacle in a costmap? Hi, I am trying to get an instantaneous occupancy grid by

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2017-11-15 05:42:35 -0500 commented question How to change the origin of local costmap?

@gvdhoorn Thanks. I have added the images.

2017-11-15 05:40:53 -0500 edited question How to change the origin of local costmap?

How to change the origin of local costmap? Hello, I am working on a project where I need an instantaneous occupancy gri

2017-11-15 00:04:07 -0500 asked a question How to change the origin of local costmap?

How to change the origin of local costmap? Hello, I am working on a project where I need an instantaneous occupancy gri

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2017-07-31 13:36:29 -0500 asked a question Use rospy subscriber and matplotlib FuncAnimation()

Use rospy subscriber and matplotlib FuncAnimation() Hello, I am trying to use a bicycle model with ROS. I used matplotl