Questions tagged [gazebo-7]

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How to apply a texture in Gazebo Garden?

I'm trying to build my own world for Gazebo Garden, but I'm stuck with texture. I've got one model, the floor. Here is my sdf : ...
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What should GZ_SIM_RESOURCE_PATH be pointing to?

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 ...
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Where can I find the list of SDF tags that can be used for a particular sensor in Gazebo Garden?

From the tutorial of gazebo garden here, ...
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gazebo garden can't load material script

Environment: $\space$ OS: Linux Ubuntu 22.04 $\space$ gazebo version: garden Problem: $\space$ I downloaded the sdf from here, it is supposed to look like this $\space$ but in my simulation it looks ...
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How can i open wind gazebo 7

How can i open wind mode on gazebo 7 ? Without wind, my simulated fixed-wing aircraft does not glide. I found an sdf file like this and tried to add the wind plugin to my sdf file but it didn't work. ...
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Missing dependency 'protobuf' when building Gazebo from source

The problem arises with the Protobuf dependency. Its latest version is installed. Error code: ...
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Why does my Gazebo GUI look completely different from what I see in the docs?

I want to get started with Gazebo, so I installed Gazebo Garden on Ubuntu 22.04 and opened it alongside a basic tutorial. The GUI I see on my laptop looks completely different from what I see in the ...
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gz log does not work, causes segmentation fault

I launched an empty world with a waffle_pi, using the urdf from turtlebot3_description Then in another terminal I run ...
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1 answer
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Error: lidar is not defined in SDF, ignoring lidar

Hello. I'm new to Gazebo and I'm trying to create a 2D-lidar sensor and connect in later on with ROS. Following the tutorial [http://gazebosim.org/tutorials?cat=guided_i&tut=guided_i1] I created ...
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1 answer
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roslaunch error-Amazon EC2- X Error of failed request: BadMatch (invalid parameter attributes)

Hi, I have an Oracle VirtualBox VM with Ubuntu 16.04 and ROS Kinetic installed, in which I run Gazebo using the following command for a simulation project: ...
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1 answer
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Two lasers on one robot not working properly

I have two lasers (ray sensors) on my robot (modeled in URDF), on front and back. However, when I use both of them, I can see a few problems they do not publish at ...
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1 answer
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Using SDF instead of URDF with ROS Robot State Publisher

With URDF models, you can use robot_state_publisher to have the joints published in tf. Since this needs the ...
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Is it possible to change the entire background of Gazebo white or transparent?

Hello friends, I am trying to get some nice screenshots of my model, but I didn't want them to have a background. It would really make my paper pop if I could get the entire background of the empty ...
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1 answer
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How to specify yaw in a ROS launch file?

Hi, I'm having trouble getting my robot to face the right direction when it is spawned in the Gazebo world. Here's what I have in my launch file: ...
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1 answer
14 views

Fixed joint not working properly

Hi everyone! I'm new in Gazebo. I created a laser rangefinder model and a robot model in which I want to use it. When I try to fix the imported model with fixed joint or revolute joint with 0 limit, ...
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1 answer
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How to wait until model is loaded while not blocking the other processes

I have a World plugin in which I need a pointer to a particular model's link. The problem is, that this plugin gets loaded before the model, therefor accessing the model's link results in failure. I ...
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1 answer
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How to work with camera image

I am trying to create a sensor plugin for camera sensor. Following the source code for gazebo_ros_camera plugin, I assume, that a CameraPlugin has an OnNewFrame() callback function that is called ...
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1 answer
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Create a camera link inside plugin

I can see how to create a new link to a robot from Gazebo plugin, but I do not see how to attach a camera to this link. I want to run a plugin that will attach camera to a specified robot and make ...
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1 answer
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Can Gazebo publish /tf (transform) data?

Hello, The system is running Ubuntu 16.04, ROS Kinetic, and Gazebo 7.16. The model being used in Gazebo is a modified URDF file. Can I get /tf data from Gazebo? or, if that's not possible, How do I ...
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1 answer
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How do I run Gazebo headless through roslaunch?

I am having issues running Gazebo 7 headless on a VM. That VM is running Ubuntu 16.04.6 with ROS Kinetic. To run Gazebo with ROS, I am currently using ...
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1 answer
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model contact with ground issue

Hello, I am running Gazebo7 ver 7.16 in Ubuntu 16.04 and Ros Kinetic. I have a four wheeled robot that I am trying to simulate in Gazebo: The two front castor wheels are behaving "strange". ...
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61 views

How to use Gazebo mimic joints plugin?

[TL;DR] I dont know how to implement and use mimic_joint_plugin in my project. I would appreciate some help or an example so I can look at it. Im developing a quadruped robot, with the particularity ...
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1 answer
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How to specify URDF link which attaches to world ground?

Hello. The system is Gazebo7 (ver 7.16), running ROS Kinetic, in Ubuntu 16.04. The model I am working with looks like so: The problem is that when I start the simulation my robot jumps up like crazy (...
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1 answer
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Issues installing gazebo7

I am running ROS Kinetic on Ubuntu 16.04. As per http://gazebosim.org/tutorials?tut=ros_wrapper_versions I need Gazebo7. I want to install the latest LTS version (which I believe is 7.16.0-1). The ...
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1 answer
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End of support for Gazebo in 2025

I'm using Gazebo in my job. Basically I try to build a virtual copy of our robot and add functionalities to Gazebo we need to get a precise simulation of our use cases. And my boss is now asking the ...
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1 answer
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Conversion of URDF to SDF source code

I have noticed that while converting robot description from URDF to SDF file, some parameters are lost, even though they are set in accordance with the documentation. I was looking through the Gazebo ...
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2 answers
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Where is the style.qss in the OS? Is it possible to customize the gzclient menus at runtime?

Hi all, I'm trying to customize the gzclient menus. I see the menus are added on MainWindow.cc It seems they are customized at runtime by loading the :/style.qss file at runtime. I tried to find that ...
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1 answer
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How to implement paralell threads on plugin

Hi, I am currently working with a velodyne plugin on Gazebo. The plugins works fine, however it seems that, when the simulation starts calculating points (E.g.: I subscribe to the Pointcloud) the real ...
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1 answer
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Building a world in Gazebo vs Blender (or other modelling software)

Hi. I am totally new to Gazebo. My apologies if this question has been asked before. I am building a simple world to test my robot. The world will have a few different flat areas at different height, ...
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1 answer
3 views

createTimer doesn't seem to be calling the callbacks

Hello everyone, Specs : Ubuntu 16.04, ROS Kinetic + Gazebo 7.16 I'm trying to publish the joint state of my robot to a ROS topic from a Gazebo Plugin. To do so I first used a feature of Gazebo API (...
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1 answer
20 views

Is there a floating joint in Gazebo?

URDF description of the robot allows to specify a 'floating' joint -- a joint with 6 degrees of freedom. But when the robot description gets translated into SDF, the floating joint is converted into ...
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1 answer
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models within a box are jittery. How to prevent the vibration?

I am trying to make a box that contains multiple balls. However as soon as I add a second layer of balls, the balls in the first layer begin to vibrate. Is there any specific values that i need to add ...
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1 answer
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How does Link::SetLinearVel(const math::Vector3 &_vel) achieve the link velocity?

I thought that it would set non-physically real velocity to the link. But if I connect two objects -- A and B, and assign a velocity to object A using this method, the velocity inside the simulation ...
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1 answer
21 views

my collision is not working

Hello everyone, I am new to gazebo, so I am not very familiar with gazebo. My problem is about collision. I have put on tag in my urdf-file ( a hand model ), but the little finger still can run into ...
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1 answer
7 views

gazebo simulation with payload

I am running ubuntu 16.04 and kinetic kame. I am simulating a robotic arm with payload and want to apply payload in runtime. I used an external force instead of payload but the direction of the force ...
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1 answer
2 views

What are the changelogs of Gazebo 7.16.0 recently released?

On Ubuntu 16.04, up until one week ago the gazebo version released on the PPA below was the 7.15.0 ...
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1 answer
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Texture does not work properly

I am trying to put a texture defined in PNG file to a custom made model in defined by OBJ file. I have this folder structure with the model ...
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1 answer
55 views

How does Gazebo compute the friction between two surfaces?

The friction is defined for a pair of surfaces. For example the rubber on asphalt. In Gazebo, however, we define a parameter 'friction' is set for each link. So suppose there is an object with surface ...
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1 answer
16 views

Does Gazebo simulate air resistance?

Does gazebo realistically simulate the air resistance? I see you can set an atmospheric pressure in the simulation but I don't know how to validate the correctness of the aerodynamics. I need the ...
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1 answer
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the robot is rotating by iteself without any forces or input. why and how can i stop it?

https://github.com/AdithyaVenkateshMohan/BatBots/tree/master/mybot_ws/src/mybot_description/urdf this above link contains my robots urdf file. the robot is a simple differential drive robot. ...
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1 answer
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Running code in loop inside gazebo-ros plugin

Any time I have used gazebo-ros plugin of any type, I would always define an update function that is called on every world update and but the code I need to run there. ...
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1 answer
21 views

How to connect the MoveIt! planning with Gazebo simulation

I am trying for several days to achieve a connection between MoveIt! and Gazebo. I tried to follow various tutorials and find the right usage in other people repositories. I wasn't able to get to a ...
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1 answer
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MoveIt setup assistant crashes during collision matrix building

I am trying to use MoveIt! with a custom robot. I have buit a simple one arm robot that can rotate around 2 axes. I have installed the MoveIt!, built the robot and now I want to generate the moveit ...
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1 answer
2 views

Difference between writing stuff directly into URDF vs. into <gazebo reference=""> tags?

Hello, I'm wondering what the tag actually does? Is there a difference between writing stuff directly into a URDF file and writing it into a tag? E.g. I can set mue for a link as follows: ...
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1 answer
7 views

protobuf Version verification failed

Hi, I want to run a launch file, error about protobuf version occur: ...
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1 answer
112 views

How to set a model's position using /gazebo/set_model_state service in python

I want to set a model's position to origin after each measure loop, so that I can make automatically several measurements in the same conditions. The ...
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1 answer
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What collision name is supposed to be passed to contact sensor?

In this tutorial it seems, that you are supposed to put the name of the collision tag of the link we want to detect the collision of. When you have the model in URDF and spawn it into the gazebo world,...
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1 answer
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UR5 robot breaks after small collision

Hi, I am working with the simulated UR5 with a gripper, and I am trying to simulate the collision between the gripper and some object (for now just a wooden box). The problem is that whenever the ...
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1 answer
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Get collision state of model without contact sensor

Hello everyone. I am wondering if it is possible to check the collision state of a urdf-model in Gazebo without contact sensor. For example, can I implement a world plugin where show which 'model:link'...
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1 answer
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Can I run two gazebo_ros_control plugins in one simulation?

I run a simulation into which I spawn a robot with gazebo_ros_control plugin called simply "gazebo_ros_control". This loads all successfully. Then there is a model inside the world which has ...
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