.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "gallery/XY/NCL_xy_2_1.py"
.. LINE NUMBERS ARE GIVEN BELOW.

.. only:: html

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

        :ref:`Go to the end <sphx_glr_download_gallery_XY_NCL_xy_2_1.py>`
        to download the full example code.

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

.. _sphx_glr_gallery_XY_NCL_xy_2_1.py:


NCL_xy_2_1.py
===============
This script illustrates the following concepts:
   - Drawing an XY plot with multiple curves
   - Changing the line color for multiple curves in an XY plot
   - Changing the line thickness for multiple curves in an XY plot
   - Drawing XY plot curves with both lines and markers
   - Changing the default markers in an XY plot
   - Making all curves in an XY plot solid.

See following URLs to see the reproduced NCL plot & script:
    - Original NCL script: https://www.ncl.ucar.edu/Applications/Scripts/xy_2.ncl
    - Original NCL plot: https://www.ncl.ucar.edu/Applications/Images/xy_2_1_lg.png

.. GENERATED FROM PYTHON SOURCE LINES 18-19

Import packages:

.. GENERATED FROM PYTHON SOURCE LINES 19-27

.. code-block:: Python


    import numpy as np
    import xarray as xr
    import matplotlib.pyplot as plt

    import geocat.datafiles as gdf
    import geocat.viz as gv








.. GENERATED FROM PYTHON SOURCE LINES 28-29

Read in data:

.. GENERATED FROM PYTHON SOURCE LINES 29-34

.. code-block:: Python


    # Open a netCDF data file using xarray default engine and load the data into xarrays
    ds = xr.open_dataset(gdf.get("netcdf_files/uv300.nc"))
    U = ds.U








.. GENERATED FROM PYTHON SOURCE LINES 35-36

Plot:

.. GENERATED FROM PYTHON SOURCE LINES 36-76

.. code-block:: Python


    # Generate figure (set its size (width, height) in inches) and axes
    plt.figure(figsize=(7, 6.5))
    ax = plt.gca()

    # Plot slices of data
    U.isel(time=0).sel(lon=82, method='nearest').plot(
        x="lat", marker='', color='#C0C2EA', linewidth=1.1
    )
    U.isel(time=0).sel(lon=-69, method='nearest').plot(
        x="lat",
        marker='',
        color='#E28D90',
        linewidth=1.1,
        linestyle='--',
        dashes=[6.5, 3.7],
    )

    # Use geocat.viz.util convenience function to add minor and major tick lines
    gv.add_major_minor_ticks(ax, x_minor_per_major=3, y_minor_per_major=5, labelsize=16)

    # Use geocat.viz.util convenience function to set axes parameters without calling several matplotlib functions
    # Set axes limits, tick values, and tick labels to show latitude & longitude (i.e. North (N) - South (S))
    gv.set_axes_limits_and_ticks(
        ax,
        xlim=(-90, 90),
        ylim=(-20, 50),
        xticks=np.linspace(-90, 90, 7),
        yticks=np.linspace(-20, 50, 8),
        xticklabels=['90S', '60S', '30S', '0', '30N', '60N', '90N'],
    )

    # Use geocat.viz.util convenience function to set titles and labels without calling several matplotlib functions
    gv.set_titles_and_labels(
        ax, maintitle="Two Curve XY Plot", xlabel="", ylabel="Zonal Wind"
    )

    # Show the plot
    plt.tight_layout()
    plt.show()



.. image-sg:: /gallery/XY/images/sphx_glr_NCL_xy_2_1_001.png
   :alt: Two Curve XY Plot
   :srcset: /gallery/XY/images/sphx_glr_NCL_xy_2_1_001.png
   :class: sphx-glr-single-img






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

   **Total running time of the script:** (0 minutes 0.118 seconds)


.. _sphx_glr_download_gallery_XY_NCL_xy_2_1.py:

.. only:: html

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

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

      :download:`Download Jupyter notebook: NCL_xy_2_1.ipynb <NCL_xy_2_1.ipynb>`

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

      :download:`Download Python source code: NCL_xy_2_1.py <NCL_xy_2_1.py>`

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

      :download:`Download zipped: NCL_xy_2_1.zip <NCL_xy_2_1.zip>`


.. only:: html

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

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