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Signal Scope

signal-scope is a live plotting tool for ROS messages.

Main Features

  • Can plot dozens of signals a 1kHz. It was heavily used to develop walking robot locomotion control (Boston Dynamics Atlas and ANYbotics ANYmal)
  • Can 'pause' the scope to zoom in on event of interest for in-situ debugging.
  • Represents time in seconds to a starting point (many other tools just use unique time)
  • Can dynamically rescale duration and magnitude when using it
  • Python macros allow simple conversions - quaternion to Euler angles, 3D norm etc

Build Instructions

In a ROS catkin workspace. Currently tested on Melodic:

git clone [email protected]:ori-drs/PythonQt.git python_qt
git clone [email protected]:ori-drs/ctkPythonConsole.git ctk_python_console
git clone [email protected]:ori-drs/signal_scope.git signal_scope
catkin build signal_scope

Running It

A configuration is specified in an simple python script.

  • roscd signal_scope/examples
  • rosrun signal_scope signal_scope example_ros_anymal.py

This example has conversions to euler angles, velocity and plot configuration

See the 'examples' directory for scripts demonstrating the basic usage of signal-scope.

Signal Scope with 400Hz date from the ANYmal robot

Credits

Originally developed for the MIT DARPA Robotics Challenge Team by Pat Marion. Now maintained by Oxford Dynamic Robot Systems Group.

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A live plotting tool for ROS message fields.

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  • C++ 87.7%
  • Python 5.9%
  • CMake 5.8%
  • Shell 0.6%