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

.. only:: html

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

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

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

.. _sphx_glr_gallery_tree_plot_double_tree.py:


Double tree
===========

This example shows how to use `iplotx` to plot two trees facing each other, which is typical in coevolutionary studies.

.. GENERATED FROM PYTHON SOURCE LINES 7-58

.. code-block:: Python


    from ete4 import Tree
    from matplotlib import pyplot as plt
    import iplotx as ipx

    tree1 = Tree(
        "((),((),(((),()),((),()))));",
    )


    tree2 = Tree(
        "((),((),(),((),())),());",
    )

    fig, ax = plt.subplots(figsize=(9, 4))

    # Plot first tree on the left
    ipx.plotting.tree(
        tree1,
        ax=ax,
        aspect=1,
        edge_color="tomato",
        leaf_deep=True,
    )

    # Plot second tree on the right, facing left
    ipx.plotting.tree(
        tree2,
        ax=ax,
        aspect=1,
        edge_color="steelblue",
        layout="horizontal",
        layout_orientation="left",
        layout_start=(11, 0),
        leaf_deep=True,
    )

    # Add lines connecting corresponding leaves
    matches = [
        (0, 0),
        (1, 4),
        (2, 5),
        (3, 2),
        (4, 1),
        (5, 5),
    ]
    for y1, y2 in matches:
        ax.plot(
            [5.2, 6.8], [y1, y2], color="gray", linewidth=2,
        )




.. image-sg:: /gallery/tree/images/sphx_glr_plot_double_tree_001.png
   :alt: plot double tree
   :srcset: /gallery/tree/images/sphx_glr_plot_double_tree_001.png
   :class: sphx-glr-single-img





.. GENERATED FROM PYTHON SOURCE LINES 59-60

``iplotx`` has a dedicated function for double trees, which virtually the same result with less code:

.. GENERATED FROM PYTHON SOURCE LINES 60-92

.. code-block:: Python


    fig, ax = plt.subplots(figsize=(9, 4))
    ipx.doubletree(
        tree1,
        tree2,
        ax=ax,
        kwargs_left=dict(
            leaf_deep=True,
            edge_color="tomato",
        ),
        kwargs_right=dict(
            leaf_deep=True,
            edge_color="steelblue",
        ),
        gap=2,
        aspect=1,
    )

    # Add lines connecting corresponding leaves
    # NOTE: The layout is horizontally centered now
    matches = [
        (0, 0),
        (1, 4),
        (2, 5),
        (3, 2),
        (4, 1),
        (5, 5),
    ]
    for y1, y2 in matches:
        ax.plot(
            [-0.3, 1.3], [y1, y2], color="gray", linewidth=2,
        )



.. image-sg:: /gallery/tree/images/sphx_glr_plot_double_tree_002.png
   :alt: plot double tree
   :srcset: /gallery/tree/images/sphx_glr_plot_double_tree_002.png
   :class: sphx-glr-single-img






.. rst-class:: sphx-glr-timing

   **Total running time of the script:** (0 minutes 0.129 seconds)


.. _sphx_glr_download_gallery_tree_plot_double_tree.py:

.. only:: html

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

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

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

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

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

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

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


.. only:: html

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

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