.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "examples/connectmultiplesfgs.py"
.. LINE NUMBERS ARE GIVEN BELOW.

.. only:: html

    .. note::
        :class: sphx-glr-download-link-note

        :ref:`Go to the end <sphx_glr_download_examples_connectmultiplesfgs.py>`
        to download the full example code.

.. rst-class:: sphx-glr-example-title

.. _sphx_glr_examples_connectmultiplesfgs.py:


========================
Connecting multiple SFGs
========================

It is sometimes useful to create several SFGs and later on connect them.
One reason is using the SFG generators.

Although connecting several SFGs is rather straightforward, it is also of
interest to "flatten" the SFGs, i.e., get a resulting SFG not containing other
SFGs but the operations of these. To do this, one will have to use the
method :func:`~b_asic.sfg.SFG.connect_external_signals_to_components`.

This example illustrates how it can be done.

.. GENERATED FROM PYTHON SOURCE LINES 16-35

.. code-block:: Python


    from b_asic.sfg_generators import wdf_allpass
    from b_asic.sfg import SFG
    from b_asic.special_operations import Input, Output

    # Generate allpass branches for fifth-ordet LWDF filter
    allpass1 = wdf_allpass([0.2, 0.5])
    allpass2 = wdf_allpass([-0.5, 0.2, 0.5])

    in_lwdf = Input()
    allpass1 <<= in_lwdf
    allpass2 <<= in_lwdf
    out_lwdf = Output((allpass1 + allpass2) * 0.5)

    # Create SFG of LWDF with two internal SFGs
    sfg_with_sfgs = SFG(
        [in_lwdf], [out_lwdf], name="LWDF with separate internals SFGs for allpass branches"
    )








.. GENERATED FROM PYTHON SOURCE LINES 36-37

The resulting SFG looks like:

.. GENERATED FROM PYTHON SOURCE LINES 37-40

.. code-block:: Python


    sfg_with_sfgs






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.. GENERATED FROM PYTHON SOURCE LINES 41-43

Now, to create a LWDF where the SFGs are flattened. Note that the original SFGs
``allpass1`` and ``allpass2`` currently cannot be printed etc after this operation.

.. GENERATED FROM PYTHON SOURCE LINES 43-48

.. code-block:: Python


    allpass1.connect_external_signals_to_components()
    allpass2.connect_external_signals_to_components()
    flattened_sfg = SFG([in_lwdf], [out_lwdf], name="Flattened LWDF")








.. GENERATED FROM PYTHON SOURCE LINES 49-50

Resulting in:

.. GENERATED FROM PYTHON SOURCE LINES 50-52

.. code-block:: Python


    flattened_sfg





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    <title>t1&#45;&gt;sym2p4</title>
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    <title>t2&#45;&gt;sym2p4</title>
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.. rst-class:: sphx-glr-timing

   **Total running time of the script:** (0 minutes 0.030 seconds)


.. _sphx_glr_download_examples_connectmultiplesfgs.py:

.. only:: html

  .. container:: sphx-glr-footer sphx-glr-footer-example

    .. container:: sphx-glr-download sphx-glr-download-jupyter

      :download:`Download Jupyter notebook: connectmultiplesfgs.ipynb <connectmultiplesfgs.ipynb>`

    .. container:: sphx-glr-download sphx-glr-download-python

      :download:`Download Python source code: connectmultiplesfgs.py <connectmultiplesfgs.py>`

    .. container:: sphx-glr-download sphx-glr-download-zip

      :download:`Download zipped: connectmultiplesfgs.zip <connectmultiplesfgs.zip>`


.. only:: html

 .. rst-class:: sphx-glr-signature

    `Gallery generated by Sphinx-Gallery <https://sphinx-gallery.github.io>`_