sas
Modularised monitoring, logging, and control of robots.
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sas_robot_driver_gazebo Directory Reference

Directories

 
launch
 
sas_robot_driver_gazebo
 
scripts
 
src

Detailed Description

sas_robot_driver_gazebo

Remarks
Repository for this module: https://github.com/MarinhoLab/sas_robot_driver_gazebo
More information about SmartArmStack is available in https://smartarmstack.github.io/.

Licenses

Check any licenses in repositories in vendor if you decide to use them. This repository's owner holds no liability for misuse.

Folder structure

The two folders below have special meanings, the others follow usual naming.

Folder Meaning
sdf Base Gazebo scene files.
vendor Vendor models. Check the licenses if you decide to use them in your work. They are not shared in this repo

Technical Overview

Each relevant joint to be controlled should have a plugin specification similar to the following, using gz::sim::systems::JointPositionController.

Joint Position Control

<plugin
filename="gz-sim-joint-position-controller-system"
name="gz::sim::systems::JointPositionController">
<joint_name>shoulder_pan_joint</joint_name>
<use_velocity_commands>True</use_velocity_commands>
<cmd_max>0.25</cmd_max>
</plugin>

Joint State Reading

Joints are read from a default gz::sim::systems::JointStatePublisher.

<plugin
filename="gz-sim-joint-state-publisher-system"
name="gz::sim::systems::JointStatePublisher">
</plugin>

Joint State Reading

<plugin filename="gz-sim-scene-broadcaster-system" name="gz::sim::systems::SceneBroadcaster"/>

Joint State Reading

<plugin filename="gz-sim-user-commands-system" name="gz::sim::systems::UserCommands"/>

Considerations

  • gz::sim::systems::PosePublisher has been considered to read poses of entities. However, it's more convenient for tf2 given how the frames are described.
  • The translation tool inside Gazebo can be used to move objects and reading their pose works only after the motion is finished. The intermediate state is not reflected in the pose topic.