Questions tagged [gazebo]

gazebo is a simulator makes it possible to rapidly test algorithms, design robots, perform regression testing, and train AI system using realistic scenarios.

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18 views

Takeoff service not working as expected

I'm simulating Iris quad sing px4+mavros+gazebo. I'm trying to get my drone to takeoff using python code. When I publish height using mavros/setpoint_position/pose, ...
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1answer
16 views

Why does the quadcopter become unstable after turning?

I'm trying to write a simple test MAVROS node where my quadrotor is expected to go in a straight line and then have 180-degree turn and come back and land on where ...
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How to disable GPS in ROS/MAVROS and sent the points myself?

I'm trying to create a simple MAVROS node that takes off, goes to a specific location and then comes back to its home location. As this is currently being tested ...
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1answer
53 views

Pose difference estimation in cartesian impedance control

I am trying to implement a cartesian impedance controller in simulation (gazebo + KDL). The method which I am using is the following: Compute the EE pose from KDL's forward kinematics for the ...
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1answer
28 views

Modifying Turtlebot3 to include different camera

I'm new to robotics in ROS. I've been learning about ROS and Gazebo using turtlebot (not turtlebot3 actually) on the platform The Construct. I would now like to incorporate turtlebot3 into my project. ...
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20 views

How to connect to a kinova gen3 arm in gazebo through MATLAB and ROS?

I want to simulate a kinova gen3 arm in Gazebo through MATLAB and ROS. I am using a windows laptop which is running MATLAB natively, and I am running ROS and Gazebo via a virtual machine. I have ...
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1answer
105 views

How to reset odom positions of robots while setting initial positions of robots in gazebo simulation through launch file

I'm in the process of creating a coordination system for a multi robot system. For that i currently have created a ROS based simulation in gazebo using Rosbot2.0 (Robot physically available as well). ...
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1answer
31 views

How to setup ROS and it's GUI tools in local server and connect to local macbook

I recently started learning ROS and I am having Macbook (MacOS Catalina) which is not ideal for running ROS. So, I decided to install ROS in my local home ubuntu 20.04 desktop server and connect it to ...
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24 views

Setting up a workstation for Baxter

I am trying to setup a workstation for Baxter to simulate Baxter in Gazebo. I am using this tutorial: https://sdk.rethinkrobotics.com/wiki/Workstation_Setup, but I am stuck on this step: Edit the '...
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1answer
78 views

How to remap /move_base_simple/goal to my own topic in turtlebot3_navigation?

I am running turtlebot3_navigation and want to make it subscribe to my own waypoints topic /my_waypoints rather than RVIZ's Set 2D Goal topic ...
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85 views

Docker on WSL2: ROS gazebo in "docker-compose": demo "test talker" needed as the input of the standard RViz listener

Taking the image and the X server setting that you get from Docker on WSL2: how to test whether ROS gazebo can connect to already working X server (using its X11 window on Windows)?, I was curious how ...
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1answer
221 views

Docker - Dockerfile: /bin/bash: catkin_init_workspace / catkin_make: command not found

I follow the guide of kinetic - Installing from source and put the steps in a Dockerfile. At this point, I get an error, although I follow exactly the guide, and although it works in the bash of the ...
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1answer
207 views

Docker on WSL2: Dockerfile: how to test whether ROS gazebo can connect to already working X server (using its X11 display on Windows)?

I had the following errors and warnings in a ROS project. They showed up using docker-compose or when running a mere container from the image, which strangely had worked once somehow but then later ...
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1answer
294 views

Tried to advertise a service that is already advertised in this node [/leo/controller_manager/list_controllers]

I'm trying to do a multi agent simulation using leo_rover which is open source. I'm comfortable with single system, but when I add a second robot using namespaces i get the second robot spawned in the ...
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1answer
134 views

Gazebo freezes on vm after running roscore

I'm a beginner in ROS, since the learning curve for ROS is steep i decided to use a book to learn how to use ros ([ROS Robotics Projects - Second Edition][1]). I'm currently on the third chapter. I'm ...
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26 views

Robot doesn't load properly in Gazebo when inertia values are small

The complete question is posted here.
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1answer
186 views

Failed to load plugin libgazebo...: libgazebo...: cannot open shared object file: No such file or directory

When running a command similar to the roslaunch gazebo_ros empty_world.launch of the Tutorial: Using roslaunch to start Gazebo, world files and URDF models, I get ...
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1answer
77 views

Error when "catkin_make" is run

I cloned a gazebo ROS package from https://github.com/YugAjmera/omni3ros_pkg and if I try to do catkin_make,I get the following error. I am using Gazebo 11 and ROS Noetic and i've made sure to source ...
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109 views

Why can't the Controll Spawner find the expected control_manager ROS interface in a docker container?

I'm using ros-melodic in a docker container based on the osrf/ros:melodic-desktop-full image. What my docker file does: My Dockerfile installs the jackal's robot ...
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1answer
341 views

Running ROS, Gazebo and RViz on Macbook

I have recently started learning robotics. Being at uni, I had access to Linux PCs where I could easily run ROS and Gazebo. However, due to the current pandemic and closure of universities, I now have ...
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1answer
580 views

Why can't the Controller Spawner find the expected controller_manager ROS interface?

I have a quadruped robot with base link (BL), 4 child links called LFT, LFT, RFT, RFT, T for thigh and each having 4 children with name LFC, LBC, RFC, RBC, C for Calf. 8 joints - Base link to 4 thighs ...
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17 views

Why do inverse directions give correct movement?

I am currently working on driving a bot based on the location of a white ball and I find that giving it negative angular movement moves it to the left rather than the right. Here's a code snippet for ...
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125 views

Am I checking for a white pixel correctly?

I am currently going through all the pixels in an image to determine what is a white pixel. I then have to decide where to drive the bot. I am also using sensor_msgs/Image.msg that I get from the <...
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1answer
34 views

Syntax highlighting for source code of urdf & sdf (xml-based) files on Github

Note: I posted this on stack overflow but couldn't get an answer. I am trying it here. I have files that are in urdf [Unified Robot Description Format] for ...
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163 views

How to remove 'insert' paths in gazebo UI

I added some paths for model insertion in the gazebo UI. I have since move the projects elsewhere or deleted some of the models but can't seem to figure out how to delete the paths showing up under ...
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1answer
741 views

Unable to find my robot with an error

This question and the docs pointed me to $GAZEBO_MODEL_PATH as being the environment variable to change to include models in a gazebo world. However, I am getting ...
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1answer
176 views

Is a gazebo world unmodifiable after you hit save?

I created a world in gazebo with 2 levels and realized that I wouldn't see my robot moving in it. So I tried to delete the 2nd level but couldn't find a means to do so. Is the GUI not capable of doing ...
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1answer
50 views

My robot keeps getting saved as one cylinder leaving out the bottom cube

I created a robot in the model editor that is made up of a cube and a cylinder with a revolute joint between them but after saving it and inserting another instance into the world, I only get the ...
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1answer
255 views

Importing a world into another world in gazebo

Is it possible to start with a with an empty world, empty.world and then import walls (other worlds into it)? I can't seem to find an import option in the gazebo ...
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1answer
114 views

Gazebo throwing error in opening model created in it

I created my world with gazebo9 and saved it. world$ tree . └── myworld ├── model.config └── model.sd Now when I start it with ...
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2answers
2k views

Gazebo not reading the material color in URDF

I have a chassis link that has casters. I would like the casters to be grey and the box to be blue. The ROS link doc mentions ...
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1answer
154 views

Can you refresh gazebo when you load through ROS?

I have a urdf model that I have loaded with: roslaunch my_robot world.launch I noticed that I gave the wrong color to a part of the robot. I have made changes. ...
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1answer
64 views

Coordinates seem to show overlapping but RViz doesn't

How can you place two objects that seem to overlap with their units but appear stacked on top of each other [original intent] in RViz? I was watching this video tutorial on ROS and URDF. I have ...
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1answer
40 views

Why are shapes in ROS and Gazebo called links?

I have been trying to figure out why shapes in ROS are called links, ie <link> tags in urdf and ...
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1answer
85 views

How to simulate a quadcopter using robotics simulator?

I am building my own autonomous quadcopter. I wish to simulate it using V-REP/Gazebo in order to tune the flight controller. I see that there are inbuilt models but they have properties(physical ...
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1answer
143 views

Controller algorithm implementation in ROS/Gazebo

I am doing some robotic simulations in ROS/Gazebo and wondering what is the best way (programming-wise since I don't have a CS background) to implement a robot's motion controller. Here are the ...
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58 views

Corrupted Robot Model in Gazebo

I'm trying to run multiple instances (18 instances) of gazebo in parallel processes on my system to do reinforcement learning. However i'm running into an issue where the robot model in some of the ...
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1answer
81 views

Designing own robot for Gazebo simulation?

For my project I am trying to model and control a quadrotor with actuating arms. As I don't have a physical model with me, I want to simulate and control the robot using ROS and Gazebo. At the ...
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1answer
117 views

Gazebo GUI doesn't show up

I tried Gazebo 9 and 10 on Ubuntu 18.04 MATE and it quits in a few seconds without showing Gazebo GUI. I'm running it on 32-bit Intel CPU with 950 Graphics chipset (pretty old). Here is what I see in ...
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96 views

Robot moves sideways in RVIZ ROS

I'm using robot_localization to fuse odom, imu and gps data on a husky robot. After fusion, the robot now moves forward in gazebo but sideways in rviz. I found this question. But the suggested ...
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1answer
560 views

Gazebo: SetPosition() function in the Joint class doesn't set the joint position and returns false sometimes

I am trying to initialize the positions of my robot using Gazebo Plugins. SetPosition() function of the Joint class is supposed ...
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0answers
381 views

How to solve action client not connected?

Does anyone know how to solve error action client not connected? The error text is: ...
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0answers
30 views

Robot rolls and rotates with different parameters

I am currently trying to build a robot with ackermann steering. As an example I found https://github.com/trainman419/ackermann_vehicle-1 for this robot. It works pretty well with the set parameters ...
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5answers
2k views

Why my robot is lying down in gazebo simulator?

this is my first post about ROS and Gazebo also I am new in ROS. I spawn KUKA robot in Gazebo using urdf file from KUKA github repository following answer from this question I spawned my urdf file in ...
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332 views

Gazebo crashes and burns launching empty world in new package [closed]

I'm launching empty_world copied into my package with the command roslaunch my_package empty_world.launch. Here is ...
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459 views

Looking for a model in a gazebo

I have a small world file, say ...
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1answer
42 views

Real world dynamic problem suggestion for PID [closed]

I need you guys to suggest me a problem that requires to change PID coefficients in different times. Lets say every 1 minutes the environment should change and readjust the PID’s parameters. Note that ...
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1answer
113 views

Running ROS on Digital Ocean?

Has anyone done this? Create a "droplet" or whatever they call it and set up ROS, and be able to actually run roscore, gazebo, rviz, etc. from there? I can imagine various complications, like having ...
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1answer
1k views

Why no cmd_vel topic when running Turtlebot simulation on ROS + Gazebo?

I have been having a very difficult time trying to understand why my system does not have the cmd_vel topic. I am trying to get a ROS system running with Gazebo so that I can work through tutorials ...
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2answers
481 views

setting custom variables on catkin workspace environment

I am developing a package for the ROS, in fact, it is a package of resources/models for the Gazebo, and I need with the presence of this package in the Workspace of Catkin to automatically set the ...