tf_python.rst

tf (Python)

.. exception:: Exception

    base class for tf exceptions.  Because :exc:`tf.Exception` is the
    base class for other exceptions, you can catch all tf exceptions
    by writing::

        try:
            # do some tf work
        except tf.Exception:
            print "some tf exception happened"

.. exception:: ConnectivityException

   subclass of :exc:`Exception`.
   Raised when that the fixed_frame tree is not connected between the frames requested.

.. exception:: LookupException

   subclass of :exc:`Exception`.
   Raised when a tf method has attempted to access a frame, but
   the frame is not in the graph.
   The most common reason for this is that the frame is not
   being published, or a parent frame was not set correctly
   causing the tree to be broken.

.. exception:: ExtrapolationException

   subclass of :exc:`Exception`
   Raised when a tf method would have required extrapolation beyond current limits.

Transformer

TransformerROS

.. autoclass:: tf.TransformerROS
    :members:

TransformListener

.. autoclass:: tf.TransformListener

TransformBroadcaster

.. autoclass:: tf.TransformBroadcaster
    :members: