.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "gallery/geo/01_robin_tracks.py"
.. LINE NUMBERS ARE GIVEN BELOW.

.. only:: html

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

        :ref:`Go to the end <sphx_glr_download_gallery_geo_01_robin_tracks.py>`
        to download the full example code.

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

.. _sphx_glr_gallery_geo_01_robin_tracks.py:


Robinson projection tracks
==========================

Global tracks plotted on a Robinson projection without external datasets.

Why UltraPlot here?
-------------------
UltraPlot creates GeoAxes with a single ``proj`` keyword and formats
geographic gridlines and features with ``format``. This avoids the verbose
cartopy setup typically needed in Matplotlib.

Key functions: :py:func:`ultraplot.subplots`, :py:meth:`ultraplot.axes.GeoAxes.format`.

See also
--------
* :doc:`Geographic projections </projections>`

.. GENERATED FROM PYTHON SOURCE LINES 19-38



.. image-sg:: /gallery/geo/images/sphx_glr_01_robin_tracks_001.png
   :alt: , Global trajectories
   :srcset: /gallery/geo/images/sphx_glr_01_robin_tracks_001.png
   :class: sphx-glr-single-img





.. code-block:: Python


    import cartopy.crs as ccrs
    import numpy as np

    import ultraplot as uplt

    lon = np.linspace(-180, 180, 300)
    lat_a = 25 * np.sin(np.deg2rad(lon * 1.5))
    lat_b = -15 * np.cos(np.deg2rad(lon * 1.2))

    fig, ax = uplt.subplots(proj="robin", proj_kw={"lon0": 0}, refwidth=4)
    ax.plot(lon, lat_a, transform=ccrs.PlateCarree(), lw=2, label="Track A")
    ax.plot(lon, lat_b, transform=ccrs.PlateCarree(), lw=2, label="Track B")
    ax.scatter([-140, -40, 60, 150], [10, -20, 30, -5], transform=ccrs.PlateCarree())

    ax.format(title="Global trajectories", lonlines=60, latlines=30)
    ax.legend(loc="lower left", frame=False)

    fig.show()


.. _sphx_glr_download_gallery_geo_01_robin_tracks.py:

.. only:: html

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

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

      :download:`Download Jupyter notebook: 01_robin_tracks.ipynb <01_robin_tracks.ipynb>`

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

      :download:`Download Python source code: 01_robin_tracks.py <01_robin_tracks.py>`

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

      :download:`Download zipped: 01_robin_tracks.zip <01_robin_tracks.zip>`


.. only:: html

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

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