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  • 实操 | Simulating a Freight robot in Gazebo

    Installation

    Before installing the simulation environment, make sure your desktop is setup with a standard installation of ROS Indigo on Ubuntu 14.04. Once your APT repositories are configured, you can install the simulator:

    $ sudo apt-get update
    $ sudo apt-get install ros-indigo-fetch-gazebo-demo

    Warning

    Never run the simulator on the robot. Simulation requires that the ROS parameter use_sim_time be set to true, which will cause the robot drivers to stop working correctly. In addition, be sure to never start the simulator in a terminal that has the ROS_MASTER_URI set to your robot for the same reasons.

    Starting the Simulator

    The fetch_gazebo and fetch_gazebo_demo packages provide the Gazebo environment for Fetch. fetch_gazebo includes several launch files:

    • simulation.launch spawns a robot in an empty world.
    • playground.launch spawns a robot inside a lab-like test environment. This environment has some tables with items that may be picked up and manipulated. It also has a pre-made map which can be used to test out robot navigation and some simple demonstrations of object grasping.

    To start the simplest environment with Freight

    $ roslaunch fetch_gazebo simulation.launch robot:=freight

    Adding a Brick wall to see how lidar scan works:

    Visualizing with RVIZ

    Even though Gazebo has a graphical visualization, RVIZ is still the preferred tool for interacting with your robot.

    $ rosrun rviz rviz

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  • 原文地址:https://www.cnblogs.com/casperwin/p/6049508.html
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