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I’m currently working on integrating a Hex-E QC force-torque sensor into my ROS-based robotic system. While researching, I came across the ros2_net_ft_driver GitHub repository (https://github.com/gbartyzel/ros2_net_ft_driver), where it mentions testing with the OnRobot HEX-E V2.
My specific question is whether the driv... |
I've created my own move_group_interface due to some complications with the original and the need to expose more functionality of move_group to my application. Within the Gazebo simulation it is working as intended, unfortunately it doesn't work on the real robot yet. I receive the error:
[motion_interface-14] [INFO][1... |
I’m using wsl to run a docker with arm64 platform in order to compile the packages that will go on a debix model A board.
My problem is that sometimes I want to test the packages I have but when I launch any run the same docker does not recognize any node or topic.
My command:
“wsl -d ubuntu docker run --network=my-net... |
As far as I know, it is not possible to set parameters in the '/' namespace from a ROS 2 node, unlike ROS 1. All the parameter set from the ROS 2 node falls in the /node_name. I just wanted to confirm whether that is correct or not.
I have some parameters that I want to set as global parameters that can be accessible b... |
I need to run multiple instances of gazebo on same PC (ROS version foxy) and want to interact with them individually like spawning a robot in one of them.
I tried using different ROS_DOMAIN_ID in different terminal and run
ros2 launch gazebo_ros gazebo.launch.py
But when i launch the command in second terminal its gzs... |
I am facing some sort of communication issue as follows....
Problem Description:
I am facing difficulties when attempting to run three ESP32 devices simultaneously, each connecting to a MicroROS agent and publishing twist data to three separate bots. Despite having a strong WiFi signal and utilizing the UDP4 protocol o... |
I am doing slam using rtabmap with a realsense d435i. Alongside, I am running a yolov5 node to detect certain objects such chair, tables etc. Now I want to pinpoint the object's position on map upon detection. How can I pull it off?
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I am trying to spawn two robots with the goal of controlling them independently. I have made changes to the empty world launch file in turtlebot3_gazebo package to try and spawn two robots, for now I can spawn two robots with their own topics as seen in the picture below, but I can't get the robots to publish their own... |
I have built ros2 iron and gazebo fortress under debian bookworm. Now I want to try urdf_tutorial
I have found urdf_tutorial and related packages under rosdistro/iron/distribution.yaml, what tools I can use to specify to install these packages?
I tried cloned the urdf_tutorial under workspace/src, but it still cannot r... |
I am having a hard time understanding the transformation of wrenches between points and represented in different frames. For e.g. Consider a unit wrench passing through $r_{end}$. When expressed in frame $x_2,y_2$
$\begin{equation}
^2\\\$_{rend} = \begin{bmatrix} (0,2,0)\times(1,0,0)\\(1,0,0)\end{bmatrix} = \begin{bma... |
I am trying to follow a ros2 tutorial, and I have a test node working, it's an executable and runs as expected from the terminal. I am now trying to make the turtlesim node draw a circle. I have created draw_circle.py in the source directory of the workspace, in the same place that I have my_first_node.py. literally no... |
I am building a simple scara robot using an Arduino Uno with a CNC shield and for that, I programmed a simple library (Here a normal program for testing purposes). I keep getting back NaN so not a number where is my mistake?
#include <math.h>
#include <Arduino.h>
#define conversionJoints 3; //1:3
#define Microstepping... |
I am trying to communicate to a Turtlebot 4 from my laptop. I set up the Discovery server as the documentation says and usually I can drive the robot around. However, every time I start anything with ROS2, my laptop loses connection to the WLAN I'm using. I can no longer ping the RPi on the Turtlebot. Sometimes the con... |
I am using the package pylon_ros_camera for Balser camera, the OS is Ubuntu 20.04 and the ROS distro is Noetic.
Here is the link: https://github.com/basler/pylon-ros-camera
In config/defualt.yaml, the description for first parameter camera_frame it says "The tf frame under which the images were published".
However I do... |
Im getting an error for downloading the ur robot driver. its a line inside a c++ file causing the issue, i cant find the right command to use. Heres the error, please help!
/home/morgan/workspace/ros_ur_driver/src/Universal_Robots_ROS2_Driver/ur_robot_driver/src/hardware_interface.cpp: In member function ‘virtual hardw... |
My textbook uses the following order:
I would really like to know why are the parameters in the D-H table ordered (in columns) the way they are from left to right, can someone please help?
|
i am trying to build a robot with navigation stack.
However, when i saw RVIZ,both local costmap and global costmap was blank. And the local costmap is not in the center of the robot.
can someone help me pls! Thank you.
This is my costmap_common_param.yaml:
obstacle_range: 2.5
raytrace_range: 3.0
footprint: [[-0.3, -0.2... |
I am using the ROS package velodyne_pointcloud (http://wiki.ros.org/velodyne_pointcloud) and I am using the Velodyne VLP32C Ultrapuck LiDAR for getting pointcloud data and visualizing it in rviz through this ROS package. It has worked fine for me two times before in July and August 2023. But now when I try to do the sa... |
i want to create an RVIZ-Plugin. I used the plant_flag_tool tutorial. The first step was to create a package called plant_flag_tool (catkin_create_package plant_flag_tool roscpp rviz). Then i created the .cpp and the .h file. It also says in the tutorial that there is an package.xml and a plugin_description.xml. The pa... |
i did not find out where the problem lied in.i tried to control my robot in gazebo,failed.Then i used rviz to see the topic,finding the problem shown in image below.
my yaml :controller_joint_names: ['', 'RB_wheel', 'RF_wheel', 'LF_wheel', 'LB_wheel', ]
my urdf tag:
transmission_interface/SimpleTransmission
hardw... |
I am learning ros noetic on the page (https://wiki.ros.org/rospy_tutorials/Tutorials/WritingServiceClient)In the scripts/add_two_ints_server.py file within the beginner_tutorials package, there is a line "from beginner_tutorials.srv import AddTwoInts,AddTwoIntsResponse". But I cannot find the beginner_tutorials.srv and... |
My Robot is not loading on Gazebo although loading fine on rviz2. Below is my code. On gazebo, only leg_link is loading not any other links. Although on the side panel under models all the links and the joints are showing fine. This is my first time modelling a robot. Any solution will be appreciated. Thank you.
URDF ... |
I've been building a 4 wheel differential drive robot (all 4 wheels have motors) and I've noticed that when I control the robot, in Gazebo it barely turns while in RViz it turns a lot more. This causes a lot of desync and I've been trying to solve it for quite some time now.
I'm working on a VM, VMWare Workstation 16 r... |
I am working on a project involving multiple TurtleBots, using Ubuntu 22.04 and ROS2 Humble. I would like to control them individually by running a separate navigation stack (with unique namespace) for each robot. I have been able to set up individual stacks for Gazebo-simulated bots, but when trying to run the stack o... |
As the title says, how to give a local orientation to my end effector, but global position?
Basically this would mimic the goal orb in RVIZ, where you can drag it around to give global position, but the orientation is still relative to the end effector itself.
For example here is a simple command to set pose target:
re... |
has anyone managed to get the combination ROS Melodic + Ubuntu Mate 18.04 + Kinect V1 + Raspberry PI 4B to work using the openni package? When I run the command roslauch openni_laucn openni.launch I get the message that no devices were found or no devices connected. However, the Kinect V1 is connected correctly.
UPDATE... |
On a Ubuntu 22.04/x86-64 machine, following turtlebot3_simulation new_gazebo "Migrating ROS 2 packages that use Gazebo Classic", repository. After rosdep, colcon build fails:
$ colcon build --symlink-install
Starting >>> turtlebot3_fake_node
Starting >>> turtlebot3_gazebo
--- stderr: turtlebot3_gazebo
CMake Error at CM... |
I am new to using Collision Monitor in Nav2 package. I am wondering how to make it worked because I can launch the default launch file and my yaml file is as the following
ros__parameters:
use_sim_time: True
base_frame_id: "robot_base_footprint"
odom_frame_id: "odom"
cmd_vel_in_topic: "cmd_vel_raw"
... |
I am asking this after having gone through quite a bit of literature and hope that it's not a repeat question.
I would like to know proper mathematical notion that clearly defines a Path and a Trajectory, Planning and Tracking, in context of Path Planning, Path Following, Trajectory Planning, Trajectory Following, Moti... |
my ros2 env does not have a display or visualization config, is there a method only by cli to get the node graph? (e.g. save in *.png)
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I am willing to implement ros2_canopen with ros2_control. I am new to ros2_canopen.
I have four wheels robot (in simulation) and using diff_drive as ros2_control. Everthing is working fine but when I am trying to use ros2_canopen with ros2_control, I am getting error: "Waiting for '/controller_manager' node to exist".
... |
Currently I'm trying to write my own sensor plugin, based on the examples odometer and odometersystem from the git repository, but am failing to add the plugins to gazebo.
The system plugin OdometerSystem seems to be ok, but as soon as I add an instance of the sensor plugin Odometer, I get an undefined symbol error.
To... |
I am working on a project which requires slam and autonomous navigation. When in Noetic I have created a map and will use move base because the lidar has plenty of drivers for ROS and not ROS2 so I’m thinking of doing all the mapping etc in Noetic and then physically driving the robot in ROS2 because I need to use ROS2... |
When I run action info, the action subscriber shown is a different node than the node I passed to the AclientClient constructor. Why is this? It's not what I would expect.
Details:
I'm using ros2 launch with a launch.py file that looks like:
node = Node(
name="launch_node_name",
...
execut... |
I am a new user of ros2 humble. I used rqt_image_view sometimes with ros2 run and since one day I see only the image placeholder and the panel for the topic and else is away. I don't know how I did this and I hope somebody can help me. I found the work around solution that I use rqt direct and add the image_view plugi... |
I have a calibrated camera, with calibration parameters specified in a yaml file. Is there a way to simulate this camera in gazebo (version = garden)?
|
I am new to ROS and I am working on a project for school.
I am using the HiWonder JetAuto (based on the Jetson Nano) to run my sensor nodes. Specifically the RPLidar A1, Astra Camera Pro Plus, IMU, and servo managers. From these sensors, I am getting all my required topics and frames, such as laser_scan, odom, imu_corr... |
I have roscore running on a VM (network bridged)hardware.
I have another node running inside a docker container.
On the master, I am publishing to a topic, and can subscribe to that topic.
On the node, I am publishing to a topic. Neither the node nor the master can see the data published, even though the topic shows i... |
I always assumed ROS2 nodes used sockets to communicate but it looks like they might also use shared memory or pipes. Regardless I'm curious how ROS2 nodes find each other?
Lets suppose each node periodically broadcasts a "I'm here" message, what port does it use and how do listening nodes share the same port? If there... |
I have trouble in using path from ROS. Does ROS have contact support in Indonesia? or someone who can help me with this?
|
OS: Ubuntu 20.04
ROS: Noetic
Gazebo 11
I was able to run my project smoothly and just today, I got ImportError from Python.
When I run main.py and the first line is here
from mubot_rob_env import MubotEnv
It showed
'ImportError: cannot import name 'MubotEnv' from 'mubot_rob_env'
(/home/name/workspace/devel/lib/des... |
I am using ROS Humble in combination with Gazebo Fortress (v6.16.0).
Using URDF / XACRO I am inserting a force_torque sensor into a rotary joint of my model.
<xacro:macro name="tibia_joint" params="prefix *origin">
<joint name="${prefix}/tibia" type="continuous">
<parent link="${prefix}_femur_link"/>
<... |
I have tried to install ROS2 humble in conda using robostack on Linux Mint 21.3. When I do so and activate the conda environment I am able to run cpp nodes but not the python ones. I.e when I try to run the demo
# In terminal 1
ros2 run demo_nodes_cpp talker
# In terminal 2
ros2 run demo_nodes_py listener
The talker ... |
I have following piece of code:
Eigen::Matrix4f transformation = myMethod(); // homogenous transformation matrix
std::cout << "transformation = " << std::endl << transformation << std::endl << std::endl;
Eigen::Isometry3f estimate = Eigen::Isometry3f(transformation);
r = estimate.rotation(); // rotation matrix
t = est... |
I am trying to implement a corner of the nav2 stack on a robot. What i am interested in, is using the costmap_2d package, to keep track of incoming obstacles in a local costmap, by rolling it infront of the robot.
Currently, i am using the nav2_costmap_2d node, and running it with:
ros2 run nav2_costmap_2d nav2_costmap... |
Hi I am having trouble what my GZ_SIM_RESOURCE_PATH should be pointing to. Should it be pointing to a folder of models? worlds? both? Anyone have any recommendations of what I should do to resolve this error?
I am using:
Ubuntu 22
Gazebo 7.7.0
Ros 2 Humble (but I have also tried it with a fresh install without ROS and... |
How can I get the joint position limits in (the new) Gazebo? From the migration guide for the Joint API it is listed that the corresponding methods from Gazebo classic are TODO, so I imagine the ECM should be used to get them, but I cannot find anywhere a guide on how to use this pattern properly. How to do this?
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I have a custom ROS1 nodelet, which is a type of plugin. It compiles and loads fine except internally it is supposed to load another plugin (bio_ik_kinematics_plugin::BioIKKinematicsPlugin). At run time, it cannot find the other plugin. Prior to converting this to a nodelet, it found the bio_ik plugin perfectly well.
S... |
I have a RealSense RGBD camera mounted on a robot's end-effector and would like to calibrate the camera's position relative to said end-effector under ROS2. I am using the moveit hand-eye calibration package, more specifically this port for ROS2.
The camera drivers define a "camera base" frame which is parent to the "d... |
I am using Ubuntu 23.10 on a Raspberry Pi 5 to build ROS2 from source, as specified in
"Ros 2 Documentation: Iron" https://docs.ros.org/en/iron/Installation/Alternatives/Ubuntu-Development-Setup.html#get-ros-2-code
I was unable to install ros-dev-tools with the error "The repository 'http://packages.ros.org/ros2/ubunt... |
I'm using nav2 GPS WP Logger and follower on a real robot on an outdoor environment.
First I drive the robot with a joystick and log each WP. Then I run nav2 on the robot and Rviz on a laptop. Unfortunately the robot doesn't follow the exact logged WP. It's out for a few meters. I'm trying to understand why is this hap... |
Hi I am doing Navigation stack on pepper robot. while doing navigation stack I came across multiple warnings and errors. I rectified few warnings but facing other warnings too. I have searched on Google and other sources but unable to rectify the warning messages. I am using rtabmap package for mapping and also for lo... |
I published a topic just to let the bot rotate through Z-axis with
rostopic pub -r 10 /cmd_vel geometry_msgs/Twist '{linear: {x: 0, y: 0, z: 0}, angular: {x: 0, y: 0, z: 0.5}}'
but it just moves along the X-axis. I cannot figure out where the problem lies
and here is my Solidworks model
Here are my code added behind... |
I'm using nav2 on a real robot. It has a 360º Lidar and right behind it it has magnetometer mounting pole. Lidar driver has not angle range limit parameter. So I'm wondering how to ignore an object that is inside the robot to be considered as an obstacle in the local costmap.
|
I'm trying to get ROS2 nodes from two different networks to talk to each other (ROS2 humble, default rmw_fastrtps_cpp, all running on Ubuntu), but no luck. The network topology looks like this:
[host_a 10.8.0.10] <-> [10.8.0.1 router 192.168.0.1] <-> [192.168.0.4 host_b]
Setting up the discovery server following the ... |
As stated, I am encountering this error when launching a ROS 2 simulation. I am currently using ROS 2 Iron and Gazebo Classic.
I am spawning the robot system from a pythonlaunch file as it follows:
spawn_robot = Node(
package='gazebo_ros',
executable='spawn_entity.py',
arguments=['-topic', 'robot_... |
I added a CMake-based library as a submodule of a package of mine.
With colcon I can correctly build and install the library file and the include files in the install folder of my workspace.
My problem is that the linker cannot find the library when building my package.
I know it's a problem of path, but I have not und... |
For a project using ROS2 as a planning back-end for a robot simulation in Unity I am trying to make a custom MoveIt controller-manager and -handle that send trajectories planned by MoveIt to Unity based on this Project for ROS1: https://github.com/szandara/unity_moveit_manager/tree/master/src/unity_moveit_manager. I am... |
I tried to control my bot using teleop_twist_keyboard.But I just cannot run teleop_twist_keyboard.py.Having examed the package,I thought I install the package correctly.I just cannot find out the reason.I have tried to edit the CMakeLists.txt file ,but the file is read only.Can anyone help me
|
I am trying to launch the gazebo window, but am getting this glitch as it opens every time. I have attached the screenshot of it along with the question. Can someone tell me what the reason might be?
|
When designing simulations in Gazebo Classic it was possible to spawn robots in the simulation with the launch file spawn_entity from the gazebo_ros pkg. Is there any equivalent in to that in Gazebo Ignition?
|
Can anyone please help me understand how I can get the dexterous workspace I know how to obtain the reachable workspace but in 3D I can't see the dexterous, anyone know of any tricks or tips? Would love if anyone could use either of the examples to help me understand, just want to see any differences between rotational... |
How can I make the data consistently located at 90 degrees to each other + one degree step in RVIZ?
My task is to organize ultrasonic SLAM and for this I took three sensors located at 90 degrees and installed them on a servo drive. In sonars_data array of data - left sonar data, center sonar data, right sonar data.
The... |
I was re-reading a prior answer about marginalization along with some documents,
Marginalization vs Dropping states for sliding window VO
My understanding is as follows:
After convergence of the objective function(say which includes marginalization prior), you do a first order expansion of the objective function.
You... |
I want to add a new skin and animation to Gazebo.
I created a model in blender and export it to Gazebo.
Everything works:
https://streamable.com/z2utvh
Here is the .dae file which works:
https://drive.google.com/file/d/1K3JZy9nuojmmzbxlJ3XOvKoCPy0GyOxB/view?usp=sharing
However, I can't change the size (pressed s to sca... |
i use cli sudo apt install ros-humble-ros2-control* to install the ros2 control,but has no fun "joint_limits_urdf.hpp” in package joint_limit ,why ??????
i check source package in https://github.com/ros-controls/ros2_control,in branch master , the package joint_limit contains 3 fun include "joint_limits_urdf.hpp”,but i... |
I have a differential drive robot, it is a 4wd robot, 2 motors, 2 encoders,s it behaves like a differential robot actually. Odometry from encoders is working well. I'm using ROS2 Humble on ubuntu 22.04.
I want to fuse odom, with an IMU to get a nice 2d pose (lokalisation)
So, I have done all the transform and got the o... |
I have a robot with all the necessary source files in a ROS workspace. I was told that for security purpose, the robot should only contain the built binaries instead of the source files. How do I make such deployment process simpler once I have more robots?
For example, I made a github repository for storing the source... |
Link: https://docs.ros.org/en/iron/Tutorials/Beginner-Client-Libraries/Creating-A-Workspace/Creating-A-Workspace.html#modify-the-overlay
I was going through the tutorial and it asked me to modify the turtle_frame.cpp. I have done it Notepad++. Unfortunately when it came to testing it out as per the instruction:
-Retu... |
some time ago, i built an inverse kinematics solver for industrial 6R robot arm. It work fine and i was able to use different robot brands, usually i took the DH parameters from robot's drawing and use them.
Now I'm working with a new robot and I noticed something weird. I built the kinematics chain as usually and I ha... |
I am trying to run this rtabmap config on my Jetson Orin:
ros2 launch rtabmap_launch rtabmap.launch.py \
frame_id:=base_link \
rgb_topic:=/camera/color/image_raw \
depth_topic:=/camera/depth/image_rect_raw \
camera_info_topic:=/camera/color/camera_info \
approx_sync:=true \
subscribe_rgb:=true \... |
I'm trying to install the ds4_driver for my ROS Project. I was following the tutorial from http://wiki.ros.org/ds4_driver.
In the end, I can't use catkin_make and I'm getting this error:
CMake Error at /opt/ros/noetic/share/catkin/cmake/catkin_workspace.cmake:100 (message):
This workspace contains non-catkin packages... |
I would like to compare/visualize the planned path and actual path of an industrial robot. I am using Moveit2 and I can access planned trajectory via /display_planned_path topic which is moveit_msgs/DisplayTrajectory. I can also read the joint position of the robot via /joint_states topic which is sensor_msgs/JointStat... |
I have a robot system defined in an SDF with the following:
<sdf version='1.9'>
<model name='simple_ddr' canonical_link='base_link'>
<plugin filename="gz-sim-diff-drive-system" name="gz::sim::systems::DiffDrive">
<left_joint>joint_wheelL</left_joint>
<right_joint>joint_wheelR</right... |
I'm trying to implement PlanSys2 and Behavior trees. My package is heavily inspired by ros2_planning_system_examples plansys2_bt_example package. I want to simulate a warehouse robot with automatic planning. The package is launched by launching plansys2_bringup from ros2_planning_system and some behavior tree nodes.
La... |
I'm curious if/how much a shorter tf2 buffer length improves performance. Does it increase the tf lookup speed? How much does it decrease the memory footprint of the program?
This is an optional constructor argument of tf2_ros::Buffer.
Buffer (ros::Duration cache_time=ros::Duration(BufferCore::DEFAULT_CACHE_TIME), bool... |
I’m currently implementing my global planner using ROS2 and Nav2. I’ve written a planner plugin in Nav2 following the tutorial at https://navigation.ros.org/plugin_tutorials/docs/writing_new_nav2planner_plugin.html. I intend to use it with Turtlebot3. While everything is working correctly, my planner only works once th... |
I Solved it. Just apt update and upgrade
I'm having a plugin path issue with gazebo_classic.
The Gazebo log outputs the following:
(1709002150 963680455) [Err] [Plugin.hh:212] Failed to load plugin gazebo_ros2_control/lib/libgazebo_ros2_control.so: gazebo_ros2_control/lib/libgazebo_ros2_control.so: cannot open shared o... |
I am a newbie to Drones, I looked into many articles over the internet to find out which flight controller should I use, but not fully able to understand as the cheap flight controllers like speedybee's one does not have any hint that I can use ROS with that and some people are suggesting they have seen people using RO... |
I`m trying to use position and velocity control with joint_trajectory_controller, I have several problems: it seems to me that controller doesn't take velocity into account, while in Gazebo logs both interfaces are in command interfaces list:
Loading joint: joint1
[gazebo-5] [INFO] [1709040839.028377435] [gazebo_ros2_c... |
I use pointpillars for object detection on pointcloud data (https://github.com/shangjie-li/pointpillars/tree/master). I have successfully trained and tested the deep network.
I would like to run the deep learning code (execute test.py and demo.py) in a Ros2 node (Ubuntu 22.04, Ros2 Humble). I created a Ros2 python subs... |
I am trying to design a quadrupod(hexapod without the middle legs) and I need to decide an appropriate battery source. Currently I have 8 Mg996r's and 4 SG90's. What i did to measure the battery voltage was that I connected a power source with a known voltage and connected a single black servo to a breadboard with a mu... |
I am running the tests for my ROS C++ node using rostest/gtest.
Currently I have a problem where I have a class method that I need/want to test that out of date data based on the value of ros::Time::now();. Since the data that I am using for this test has a predefined date I need/want to mock the value returned by ros:... |
I'm building and programming a controller for a robotic manipulator. Currently I'm figuring out how to generate trajectories in joint space. I'm following Introduction to Robotics: Analysis, Control, Applications by Saeed B. Niku and while he talks about using the 3rd and 5th polynomial, he skips over the 4th. Northwes... |
I am using the following method in https://answers.ros.org/question/223196/using-gazebo_ros_control-with-sdf-instead-of-urdf/ to actuate a 2D Gimbal model using the ROS Control Plugin. However, the following error pops up:
[ERROR] [1709058385.958866443]: This robot has a joint named "tilt_joint" which is not in the gaz... |
I am trying to do a navigation stack on the pepper robot. when I launch move_base, i have noticed the following error. i have seen a similar kind of issue and I tried that modification but was still not successful like setting static map to true in global costmap and rolling window to true in local costmap.
[ WARN] [1... |
I think I've followed the instructions for this ROS Tutorial and have the following files plus config file changes:
- ros2_ws
- src
- custom_action_cpp
- CMakeLists.txt
- packages.xml
- src
- fibonacci_action_client.cpp
- fibonacci_action_s... |
Problem Description
I have a code contribution to the geographic_info package. That package says the license in the package.xml is "BSD".
That is not a valid SPDX identifier.
What should I do to make this a "Tier 1" package, when Tier 1 packages are required to use ament_lint_common?
There is no way to get colcon test ... |
I am a beginner with ROS2, and I would like to develop a comprehensive test suite for my project. I have already created unit tests for my ROS2 packages, and the next step that I wish to take is to start creating integration tests. However I cannot seem to get started with the task, and I was hoping you might be able t... |
Currently doing a course on robotics - skip to 1:12 in the video below where Kevin Lynch describes the C-Space topology of a 2R robot to be a torus. Why did he rotate the circle for joint 1 to be perpendicular to that of joint 2?
https://youtu.be/z29hYlagOYM?list=PLggLP4f-rq01z8VLqhDC94W2nWpWpZoMj&t=72
Also shouldn't t... |
I'am a starter on ROS. I'am making my own point follower, a robot that follows a "clicked_point" in a map.
So, currently, I'am stopping my robot if anything is too close to it, but I wanted so that it would have more priority to stop for dynamic obstacles (humans, for example) and less priority for walls, so that it ca... |
I am trying to write unit tests for my ROS node in python and cannot import files from my src/ directory even though I believe I have configured everything correctly. I will walk through my problem to provide as much information as possible.
Step 1: Create package:
catkin_create_pkg test rospy
touch test/src/main.py
to... |
So I want to capture a 3d map for my VSLAM project on my Jetson Orin Nano (using Jetpack 6) utilizing the Intel RealSense D435i depth camera. So far, I have downloaded ROS2 Humble and RTAB-map, and I successfully managed to capture a 3d point cloud of the room using RTAB-map. However, to visualize the map, I see the in... |
I am trying to process a Point Cloud read from a depth camera using the pcl library. Sometimes, while the node that does the filtering is running, the node crash and this is the last output on the screen before the crash:
[camera_to_occupancy-2] [INFO] [1709140099.438141571] [occupancy_map_manager]: Pointcloud size: 47... |
I am going through the installation steps for using the ARI simulation as seen here, and have successfully done so in the past without any issues. However, now I am experiencing the following errors after inserting the final roslaunch ari_gazebo ari_gazebo.launch public_sim:=true command for running the simulation:
xac... |
I have a legacy code that I am changing to ROS2 from ROS. I stumbled upon a class that is inheriting ros::CallbackInterface that I would like to change to ROS2.
I would like to know what is the ROS2 equivalent of ros::CallbackInterface?
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I'm trying to figure out what is causing this message.
I am using an rplidar, and launching like so:
roslaunch rplidar_ros rplidar.launch
Then I create a transform (which does not actually do any transforming)
rosrun tf static_transform_publisher 0 0 0 0 0 0 base_link laser 50
Then I start the laser scanner matcher:... |
I am currently trying to simulate my Turtlebot2 in Gazebo using this repo, but am running into the problem that whenever I launch turtlebot2_nav2.launch.py, the map is not shown; also, the localization is inactive. Furthermore, I have to run the nav2 launch file in connection with the slam launch file or otherwise no m... |
Looking to understand the limits of ROS2 right now so I can architect my system better. Is it possible to run different DDS implementations on different nodes (e.g. fast-dds and cyclone-dds) or will this cause issues with topics and services? My main reason for asking is the use-case where I am communicating with an ex... |
Currently my ROS2 simulation doesn't populate non-zero a covariance for /imu/data or /gps/fix. I would like to have covariance in the output. How can I add covariance to the gz sensor output?
I have found some ways which tell me that I either have to write a node to manually populate the fields OR i have to write a plu... |
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