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Many of the tf2 tutorials are available for both C++ and Python. The tutorials are streamlined to complete either the C++ track or the Python track. If you want to learn both C++ and Python, you should run through the tutorials once for C++ and once for Python.

All these tutorials assume that you have setup your tutorial workspace. If you have not done so click here.

Setting up the ROS tutorial workspace

This describes how to setup your environment for tutorials.

Create a file named ~/tutorials.rosinstall with the following content:

- other: { local-name: workspace }

cturtle    boxturtle   

To overlay on cturtle:

rosinstall ~/tutorials /opt/ros/cturtle ~/tutorials.rosinstall

To overlay on boxturtle:

rosinstall ~/tutorials /opt/ros/boxturtle ~/tutorials.rosinstall

To use this workspace whenever you open a new terminal setup your ROS environment by typing:

source ~/tutorials/setup.bash

Sourcing this file adds ~/tutorials/workspace to your ROS_PACKAGE_PATH. Any packages you create in that directory will be found by rospack.

An alternative is to add this to your .bashrc, but remember that this will persist in your .bashrc into the future, and you can only have one environment setup. For more on what this is doing see this page

Migrating from tf1 to tf2

  1. Converting Datatypes

    This is a quick description of the changes in syntax for converting datatypes.

  2. Migrating a TransformListener from tf to tf2

    This is a guide for converting a tf TransformListener class to a tf2 Listener class

  3. Migrating a TransformBroadcaster from tf to tf2

    This is a guide for converting a tf TransformBroadcaster class to a tf2 Listener class

Learning tf2

  1. Introduction to tf2

    This tutorial will give you a good idea of what tf2 can do for you. It shows off some of the tf2 power in a multi-robot example using turtlesim. This also introduces using tf2_echo, view_frames, and rviz.

C++

Python

  1. Writing a tf2 broadcaster (C++)

    This tutorial teaches you how to broadcast coordinate frames of a robot to tf2.

  2. Writing a tf2 listener (C++)

    This tutorial teaches you how to use tf2 to get access to frame transformations.

  3. Adding a frame (C++)

    This tutorial teaches you how to add an extra fixed frame to tf2.

  4. Learning about tf2 and time (C++)

    This tutorial teaches you to use the waitf2orTransform function to wait for a transform to be available on the tf2 tree.

  5. Time travel with tf2 (C++)

    This tutorial teaches you about advanced time travel features of tf2

  1. Writing a tf2 broadcaster (Python)

    This tutorial teaches you how to broadcast the state of a robot to tf2.

  2. Writing a tf2 listener (Python)

    This tutorial teaches you how to use tf2 to get access to frame transformations.

  3. Adding a frame (Python)

    This tutorial teaches you how to add an extra fixed frame to tf2.

  4. Learning about tf2 and time (Python)

    This tutorial teaches you to use the waitf2orTransform function to wait for a transform to be available on the tf2 tree.

  5. Time travel with tf2 (Python)

    This tutorial teaches you about advanced time travel features of tf2

Now that you have completed these tutorials please take the time to complete this short questionnaire.

Debugging tf2

  1. Debugging tf2 problems

    This tutorial gives a systematic approach for debugging tf2 related problems.

Using sensor messages with tf2

  1. Using Stamped datatypes with tf2::MessageFilter

    This tutorial describes how to use tf2::MessageFIlter to process Stamped datatypes.

Setting up your robot with tf2

  1. Setting up your robot using tf

    This tutorial provides a guide to set up your robot to start using tf.

  1. Using the robot state publisher on your own robot

    This tutorial explains how you can publish the state of your robot to tf, using the robot state publisher.

Create a new tutorial:

Extending tf2

  1. Transforming your own datatypes

    This tutorial explains which methods you need to implement to make tf2 transform your own datatypes.

Wiki: tf2/Tutorials (last edited 2010-10-01 01:37:55 by wim)