mix sonar and laser in model sdf
Hi! I am editing a model that has both lasers and sonar. The model below work fine, but if I uncomment the sonar part gazebo crashes with no error thrown in verbose mode. I am working on gazebo-6.5. If...
View ArticleIs there a model for the Sphero robot from Orbotix, or something close?
Hi, im trying to model a Sphero but im having some trouble because im new with ROS and GAZEBO, and i cant really a mobile spherical robot, in a stable way. I using ROS Jade, with Gazebo 6, and i was...
View ArticleWhy does performance decrease when removing / inserting models?
I've a world plugin that does the following: - Insert a model (in this contrived example it's a simple sphere) - Run for 5 seconds simulation time - Measure the elapsed real time, calculate and print...
View Articleunstable force obtained from Contact Sensor
Hi all, I'm using the contact sensor plugin in ros (libgazebo_ros_bumper.so) to get the contact forces from gazebo. It works very well for the contact positions, but it's extremely unstable in the...
View Articlegazebo bumper plugin wont give me any data ?
I'm working on nao simulation in gazebo when i call "rostopic echo /nao_robot/fsr" on terminal it gives me a lot of these ---------------------------------------- --- header:Â Â seq: 49 Â stamp:...
View ArticleHexapod simulation not working
Hello, I want to create a simulation for a simple hexapod. When I spawn the model in Gazebo, I get a behavior like the following:  The behavior I was...
View ArticleLocation of Souce code for Plugins on our local machine
Where are the source code for plugins present in the gazebo source on our machines? For example, what is the location of this file...
View ArticleUsing ROS without gazebo_ros_pkgs ?
Hi, I made a project using Gazebo and plugins to simulate a Robot. ROS is now not even installed on my computer. I wonder if I can use the roscpp librairy to integrate ROS in my project, without using...
View Articleuse of class RandomVelocityPrivatePlugin class
Hii, May I know the need to make the class RandomVelocityPrivatePlugin in the source of RnadomVelcoity Plugin? Is it just a default class for the cases, when user doesn't explicitly gives the update...
View Articlechanging the position of a joint changes other one connected to it
Hi! I have a robotic arm with 2 joints connected in series. Using a ModelPlugin, I change the position using joint->SetPosition(0,targetPosition); , but when I try to push through some limits (like...
View ArticleControlling Pose of a link directly.
I'm currently working with a model that has two links with a universal joint connecting the two. I would like to control the model as if a robot were gripping one of the links and moving it around. I...
View ArticleHow to simulate (floating) particles ?
This is what I am trying to do: I want to create a sphere and put a large number of tiny particles in it in a floating state. When the sphere moves in any direction, the particles should be hitting the...
View ArticleLaser reflective surface in gazebo
Hi! I wanted to simulate an object that could 'redirect' a laser ray. This is to simulate a mirror attached to the laser, that reflects a portion of the scan down, instead of forward like the rest of...
View ArticleHow can simulation multi-layer(vertical) using gpu_ray sensor?
I would like to simulate the Velodyne Laser. Velodyne sensor vertically and horizontally in a number of Ray information has to be obtained. So, I try to implement as Ray Sensor Plugin, but is very...
View ArticleModel collapses when Physics is on
 Or see [the video](https://youtu.be/Z7GLRfR8zaU) how it goes. Model keeps standing when physics is off upon the launch. So I suspect it's related to...
View ArticleHow can i write or create a dynamic net(mesh) in gazebo
I want all my joints to have specific coordinates and all the links to be dynamic.
View ArticleError for Gazebo initialisation in 12.04 ROS Hydro. ?
i have installed ROS Hydro in 12.04 and I am able to call gazebo command. But , when it is initialised, gazebo opens for a fraction and crashes. The error displayed is as follws - varunt@VarunPC:~$...
View ArticleSimulating a Kinect using Gazebo (without ROS)
I'm trying to simulate a Kinect sensor in Gazebo (6.1, standalone without ROS). I tried loading the Kinect model in **".gazebo/models/kinect"** using the GUI: Insert->Kinect. I tried checking up the...
View ArticleReplacement of 'wb_robot_step()'?
I'm migrating to gazebo from Webots and having troubles finding replacements. In Webots, 'wb_robot_step()' controls the controller's update rate in 'simulation time'. The code below prints "Hello...
View Article4wheel skid-steer - weird behaviour
I've set up a 4-wheeled skid-steer (differential drive) sim and am testing turn-on-the-spot. With a plugin I set both right wheels to go forward, velocity 1, and the left ones backwards, velocity 1....
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