.. _sphx_glr_plot_types_unstructured:

.. _unstructured_plots:

Unstructured coordinates
-------------------------

Sometimes we collect data ``z`` at coordinates ``(x,y)`` and want to visualize
as a contour.  Instead of gridding the data and then using
`~.axes.Axes.contour`, we can use a triangulation algorithm and fill the
triangles.



.. raw:: html

    <div class="sphx-glr-thumbnails">


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="See ~matplotlib.axes.Axes.tricontour.">

.. only:: html

  .. image:: /plot_types/unstructured/images/thumb/sphx_glr_tricontour_thumb.png
    :alt: tricontour(x, y, z)

  :ref:`sphx_glr_plot_types_unstructured_tricontour.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">tricontour(x, y, z)</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="See ~matplotlib.axes.Axes.tricontourf.">

.. only:: html

  .. image:: /plot_types/unstructured/images/thumb/sphx_glr_tricontourf_thumb.png
    :alt: tricontourf(x, y, z)

  :ref:`sphx_glr_plot_types_unstructured_tricontourf.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">tricontourf(x, y, z)</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="See ~matplotlib.axes.Axes.tripcolor.">

.. only:: html

  .. image:: /plot_types/unstructured/images/thumb/sphx_glr_tripcolor_thumb.png
    :alt: tripcolor(x, y, z)

  :ref:`sphx_glr_plot_types_unstructured_tripcolor.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">tripcolor(x, y, z)</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="See ~matplotlib.axes.Axes.triplot.">

.. only:: html

  .. image:: /plot_types/unstructured/images/thumb/sphx_glr_triplot_thumb.png
    :alt: triplot(x, y)

  :ref:`sphx_glr_plot_types_unstructured_triplot.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">triplot(x, y)</div>
    </div>


.. raw:: html

    </div>


.. toctree::
   :hidden:

   /plot_types/unstructured/tricontour
   /plot_types/unstructured/tricontourf
   /plot_types/unstructured/tripcolor
   /plot_types/unstructured/triplot