Questions tagged [simulation]
Robotics simulators represent the world in software. They range in complexity from the simple and only operate in a top-down 2D world, or very complex with photo-realistic rendering and physics modeling.
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Why do some Bug algorithm examples use grid movement while others move freely?
In some Bug algorithm examples I see that the robot can only move up, down, left, right, or 45 degrees diagonally. But in other examples, it seems to move freely in any direction. Why is that? Is it ...
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How to close is Gazebo reality? A proven percentage value? An estimated value?
How close to reality can the Gazebo environment be simulated, and how error-free is it? Especially for aircraft?
When I finish development in Gazebo, I expect to be able to create an exact replica of ...
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How to move a actor/person model move and get the position data from ign topic by giving waypoints in the gazebo fortress
I have been working on adding the dynamic obstacles(eg., actor/person model) inside the world(edifice.sdf). I am using gazebo fortress. I noticed when i was giving "include" tag for the ...
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Basic Pick and Place Simulation in Webots
I am trying to simulate a basic pick and place in webots and having a real hard time to use ikpy library. Has anyone done a basic pick and place in webots such as picking up a soda can? I am not using ...
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Uncontrolled Rotating in Robot with the MPPI Controller
I’m running into an issue when using the MPPI controller with the SmacPlanner on my Clearpath Jackal in simulation. As soon as the robot receives a goal that requires even a slight rotation, it starts ...
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RViz Humble: Minimal URDF is "Ok" but Invisible
I'm encountering a very persistent issue on my system where I cannot see any URDF models in RViz, even though all statuses appear to be 'Ok'. I believe I have ruled out all common code and package-...
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Solving the inverse kinematics of a 6 DOF robot
I'm using Python and Numpy to try to solve the inverse kinematics of a 6 DOF robotic arm, but without the Denavit Hartenberg method as I wanted to derive each individual homogeneous transformation ...
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Is there a way to use time.sleep() inside a ros execution loop?
community!
I'm new to ROS and Robotics, and currently stacked with the problem how to debug my setup.
My setup is a follows:
I have IsaacSim Simulation on my PC
I also have a docker container with a ...
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How to make the objects move in simulation environment depending on the robot's location?
I have a 4 wheel differential drive robot (Clearpath Jackal or Nova Carter) in simulation. Right now, I am thinking about Isaac SIM (it already supports nova carter with ros nodes as example) or IGN ...
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Same image being rendered in different models in Gazebo
I am trying to set up a warehouse simulation using the aws_robomaker_small_warehouse package and I want to add a few boxes with QR codes in the scene. I have created 20 models and assigned 20 ...
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Does WSL provide all the capabilities to replicate the required Linux environment for G1 robot control and simulation using Unitree SDK2 python
I am trying to develop an application with G1 Robot leveraging the Unitree ROS simulation packages without having direct access to the Unitree robot. As per the official documentation, the recommended ...
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Need Help with LQR Control for Rotary Inverted Pendulum Simulation in Unity
Hi everyone,
I'm currently working on building a digital twin of a Rotary Inverted Pendulum in Unity. My goal is to stabilize the pendulum using an LQR (Linear Quadratic Regulator) controller. I've ...
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Gazebo simulation crashing
I am using unitree robotics Github and I am trying to simulate the b1 in ROS.
When trying to install and run unitree ros using the roslaunch command that is given,
<...
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Ackermann Steering Controller failed to start on ros noetic
it's my first time doing a robot with ackermann steering model. right now i got this error
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ros2 control topic remapping inconsistency
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When bringing up my gazebo simulation, the specified topic remaps for my ros2 controllers are not consistently remapping. It seems to be a toss up as to when the topic gets remapped. I'll ...
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