MoveIt Visual Tools

Helper functions for displaying and debugging MoveIt data in Rviz via published markers, trajectories, and MoveIt collision objects. It is sometimes hard to understand everything that is going on internally with MoveIt, but using these quick convenience functions allows one to easily visualize their code. This package is built in top of rviz_visual_tools and all those features are included via class inheritance.

This package helps you visualize:

• Basic Rviz geometric shapes
• MoveIt collision objects
• MoveIt and ROS trajectories
• Robot states
• End effectors
• Interactive markers to move robot arms using IK from remote applications

This open source project was developed at PickNik Robotics. Need professional ROS development and consulting? Contact us at projects@picknik.ai for a free consultation.

Status:

ROS:

• Github Actions
• ROS Buildfarm - AMD64 Focal Source Build - Ubuntu 20.04 LTS
• ROS Buildfarm - AMD64 Focal Devel Build - Ubuntu 20.04 LTS

Install

Ubuntu Debian

sudo apt-get install ros-kinetic-moveit-visual-tools

Install From Source

Clone this repository into a catkin workspace, then use the rosdep install tool to automatically download its dependencies. Depending on your current version of ROS, use:

rosdep install --from-paths src --ignore-src --rosdistro kinetic

Quick Start Demo

First launch Rviz:

roslaunch moveit_visual_tools demo_rviz.launch

Then run some demos displaying robot states and collision objects:

roslaunch moveit_visual_tools demo.launch

Code API

See VisualTools Class Reference

Usage

We'll assume you will be using these helper functions within a class.

Initialize

Add to your includes:

#include <moveit_visual_tools/moveit_visual_tools.h>

Add to your class's member variables:

// For visualizing things in rviz
moveit_visual_tools::MoveItVisualToolsPtr visual_tools_;

In your class' constructor add:

visual_tools_.reset(new moveit_visual_tools::MoveItVisualTools("base_frame","/moveit_visual_markers"));

Collision Object Functions

Helpers for adding and removing objects from the MoveIt planning scene. CO stands for Collision Object and ACO stands for Active Collision Object.

• cleanupCO
• cleanupACO
• attachCO
• publishCollisionBlock
• publishCollisionCylinder
• publishCollisionTree
• publishCollisionTable
• publishCollisionWall

And more...

Animate Trajectories

Higher level robot and trajectory functions

• publishTrajectoryPath
• publishTrajectoryPoint
• publishRobotState
• publishAnimatedGrasps
• publishIKSolutions

Show parts of a robot

These functions are a little more complicated

• publishEEMarkers

Parent Class

This class is built on top of rviz_visual_tools so all features and documentation for that package apply here as well.

Developers Notes

Useful notes for anyone wanting to dig in deeper:

• All poses are published with respect to the world frame e.g. /world, /odom, or maybe /base
• All publish() ROS topics should be followed by a ros::spinOnce(); but no sleep
• Do not want to load any features/publishers until they are actually needed since this library contains so many components

Testing and Linting

To run roslint, use the following command with catkin-tools:

catkin build --no-status --no-deps --this --make-args roslint

To run catkin lint, use the following command with catkin-tools:

catkin lint -W2

Use the following command with catkin-tools to run the small amount of available tests:

catkin run_tests --no-deps --this -i

Contribute

Please send PRs for new helper functions, fixes, etc!