robokudo.io.tf_listener_proxy
=============================

.. py:module:: robokudo.io.tf_listener_proxy


Attributes
----------

.. autoapisummary::

   robokudo.io.tf_listener_proxy.this


Functions
---------

.. autoapisummary::

   robokudo.io.tf_listener_proxy.instance


Module Contents
---------------

.. py:data:: this

.. py:function:: instance()

   A singleton-like tf_listener  instance;
   because of the latched tf_static topic it is recommended to have a single
   *TransformListener* in a single node.
   Otherwise the buffer might not get filled correctly.
   Use this class to lookup tf transforms in the annotators.