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2022-10-11 09:35:22 -0500 commented answer Undefined reference to `GeographicLib::UTMUPS::Forward(...)

Worked for me on noetic

2022-10-07 04:37:28 -0500 commented answer Reset model poses in a python script

Works for me in Noetic.

2022-09-23 09:19:22 -0500 commented answer sending multiple goals to navigation stack

This worked for me on Noetic, Thanks.

2022-09-23 09:19:19 -0500 commented answer sending multiple goals to navigation stack

This worked for me on Noetic, Thanks.

2022-09-23 09:19:06 -0500 commented answer sending multiple goals to navigation stack

This worked for on Noetic, Thanks

2022-08-08 03:11:06 -0500 commented answer range_sensor_layer marks max sonar range as obstacle?

The sensor could also detect the ground as an obstacle. Change the p value in rpy="0 0 0" as rpy="0 -0.5 0" or something

2022-08-04 04:17:24 -0500 commented answer Adding ultrasonic sensor to the robot

works for me on Noetic.

2022-05-23 07:23:22 -0500 commented answer Adding ultrasonic sensors and range sensor layer

Hi @LoopingCollider Can you tell us which Ultrasonic sensor did you use ?

2022-02-25 07:03:42 -0500 commented answer can't add time and duration.

worked for me on ROS noetic! Thanks

2022-02-10 07:07:23 -0500 commented question wheels of mobile 4 wheel robot tilt in gazebo when trying to rotate about its axis.

Hi , Any update on this issue ?

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2021-12-14 04:16:19 -0500 commented answer Why is my AMCL node closing when I try to set the use_map_topic parameter?

Thanks. This worked for me on ROS noetic.

2021-12-10 05:10:45 -0500 commented answer creating the map with only Lidar

Thanks for your reply, But I suspect laser_scan_matcher is not a maintained repository. Although, I tried hector_slam an

2021-12-09 03:27:58 -0500 commented question creating the map with only Lidar

@Mike Scheutzow I would like to generate the map of an indoor environment. I am not trying to localize the sensor, so I

2021-12-09 03:27:52 -0500 commented question creating the map with only Lidar

@MikeScheutzow I would like to generate the map of an indoor environment. I am not trying to localize the sensor, so I

2021-12-09 03:00:40 -0500 marked best answer creating the map with only Lidar

I am using, ROS Noetic + 20.04. Lidar hardware: rplidar_a3m1

  • I installed slam_toolbox package via sudo apt install ros-noetic-slam-toolboxand it is working fine
  • I installed rplidar driver via rplidar git

I want to create an indoor map using slam_toolbox with lidar ONLY. I do not have wheel odometry.

First I do,

  • roslaunch rplidar_ros rplidar_a3.launch This starts publishing on the /scan topic.
  • roslaunch slam_toolbox online_sync.launch I launch the slam_toolbox with default config.

Initially, I encounter that map did not grow after its initialization #438

Then, I provided a dynamic frame as per Broadcasting a moving frame. Which looks like this tf publisher

But I see my map is not generated correctly. It is moving in a circle (which I guess due to the dynamic tf I provided). The circle get smaller if I reduce the amplitude. I do not know what is the correct way of providing the dynamic tf between frames when I want to move the sensor with hand and create a map.

map

And this is how my tf tree looks like when running, rosrun tf2_tools view_frames.py

frames.pdf

Regards,

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2021-12-08 04:39:22 -0500 commented question creating the map with only Lidar

@WarTurtle Thanks for commenting. Would you recommend hector_slam as better solution than slam_toolbox?. As hector_slam

2021-12-08 04:33:34 -0500 commented question creating the map with only Lidar

@WarTurtle Thanks for commenting. Would you recommend hector_slam as better solution than slam_toolbox?.

2021-12-08 02:04:26 -0500 edited question creating the map with only Lidar

creating the map with only Lidar I am using, ROS Noetic + 20.04. Lidar hardware: rplidar_a3m1 I installed slam_toolbo

2021-12-08 01:33:40 -0500 asked a question creating the map with only Lidar

creating the map with only Lidar I am using, ROS Noetic + 20.04. Lidar hardware: rplidar_a3m1 I installed slam_toolbo

2021-12-03 07:27:42 -0500 commented answer hector slam

For 20.04 ros noetic, use: rosrun tf2_tools view_frames.py

2021-12-03 07:27:14 -0500 commented answer hector slam

For 20.04 , ros noetic, use rosrun tf2_tools view_frames.py

2021-12-02 10:19:53 -0500 edited answer Generating 3D map from Lidar data

I tried 3D Localization and mapping using hdl_graph_slam. Just using the Lidar scan and odometry and I was able to local

2021-12-02 10:19:18 -0500 answered a question Generating 3D map from Lidar data

I tried 3D Localizing and mapping using hdl_graph_slam. Just using the Lidar scan and odometry and I was able to localiz

2021-12-01 07:46:36 -0500 edited answer Error: CMake Error - serial

Check this out, serial package. Link or goto http://wjwwood.io/serial/ After installing, make sure to, cd cat

2021-12-01 07:38:29 -0500 edited answer Error: CMake Error - serial

Check this out, serial package. Link or goto http://wjwwood.io/serial/ After installing, make sure to, cd cat

2021-12-01 07:26:02 -0500 edited answer Error: CMake Error - serial

Check this out, serial package. Link or goto http://wjwwood.io/serial/ and after installing, make sure to, sou

2021-12-01 07:25:49 -0500 edited answer Error: CMake Error - serial

Check this out, serial package. Link or goto http://wjwwood.io/serial/ and after installing, make sure to sourc

2021-12-01 06:48:48 -0500 answered a question Error: CMake Error - serial

Check this out, serial package. Link or goto http://wjwwood.io/serial/

2021-02-10 06:54:06 -0500 edited answer Smooth arm trajectory with JointTrajectoryPoint

As you said, your trajectory are executed correctly, but it's not smooth. To have the smooth trajectory you need to hav

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2020-12-31 11:19:57 -0500 commented question why effort_controllers/JointTrajectoryController is asking for PID gains in Gazebo

Yeah , No log warnings. Let's see , may be an issue with interface as you described. But, I need to find a solution and

2020-12-31 11:19:42 -0500 commented question why effort_controllers/JointTrajectoryController is asking for PID gains in Gazebo

Yeah , No log warnings. Let's see , may be a issue with interface as you described. But, I need to find a solution and m

2020-12-31 09:27:00 -0500 commented question why effort_controllers/JointTrajectoryController is asking for PID gains in Gazebo

should_pan_joint is first joint, I tried various values on all the joints, behavior is same , its jerky for all joints.

2020-12-31 08:31:32 -0500 commented question why effort_controllers/JointTrajectoryController is asking for PID gains in Gazebo

This can be an issue, have a look at my repo . I think I have defined them correctly, look here @Dragonslayer

2020-12-31 03:19:32 -0500 commented question why effort_controllers/JointTrajectoryController is asking for PID gains in Gazebo

x axis is the time which is scaled by default by rqt_multiplot. It's just one command, Yes you are seeing right, 60 Nm.

2020-12-31 03:19:10 -0500 commented question why effort_controllers/JointTrajectoryController is asking for PID gains in Gazebo

x axis is the time which scaled by default by rqt_multiplot. It's just one command, Yes you are seeing right, 60 Nm. It

2020-12-30 13:01:15 -0500 commented question why effort_controllers/JointTrajectoryController is asking for PID gains in Gazebo

initially I thought there is some issue with my server-client but this problem is there with rostopic pub /. When I read

2020-12-30 12:59:46 -0500 commented question why effort_controllers/JointTrajectoryController is asking for PID gains in Gazebo

initially I thought there is some issue with my server-client but this problem is there with rostopic pub /. When I read

2020-12-30 12:58:28 -0500 commented question why effort_controllers/JointTrajectoryController is asking for PID gains in Gazebo

initially I thought there is some issue with my server-client but this problem is there with rostopic pub /. When I read