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

    Click :ref:`here <sphx_glr_download_auto_examples_plot_sparsecone.py>` to download the full example code
.. rst-class:: sphx-glr-example-title

.. _sphx_glr_auto_examples_plot_sparsecone.py:



====
Cone
====

Sparse Cone



.. code-block:: python

    from __future__ import absolute_import, print_function, division

    import numpy as np
    import matplotlib.pyplot as plt
    from mpl_toolkits.mplot3d import Axes3D    # noqa

    from km3pipe.math import SparseCone
    import km3pipe.style
    km3pipe.style.use("moritz")

    spike = [0, 0, 1]
    bottom = [0, 0, 0]
    angle = np.pi / 4
    n_angles = 20
    cone = SparseCone(spike, bottom, angle)
    circ_samp = cone.sample_circle(n_angles=n_angles)
    axis_samp = cone.sample_axis
    samp = cone.sample(n_angles)

    samp = np.array(samp)





.. rst-class:: sphx-glr-script-out

 Out:

 .. code-block:: none

    Loading style definitions from '/home/docs/checkouts/readthedocs.org/user_builds/km3pipe/conda/stable/lib/python3.5/site-packages/km3pipe/kp-data/stylelib/moritz.mplstyle'


plot the same in 3D because why not?



.. code-block:: python


    plt.clf()
    fig = plt.figure()
    ax = fig.add_subplot(111, projection='3d')
    ax.scatter(samp[:, 0], samp[:, 1], samp[:, 2], 'yo')
    plt.show()



.. rst-class:: sphx-glr-horizontal


    *

      .. image:: /auto_examples/images/sphx_glr_plot_sparsecone_001.png
            :class: sphx-glr-multi-img

    *

      .. image:: /auto_examples/images/sphx_glr_plot_sparsecone_002.png
            :class: sphx-glr-multi-img




**Total running time of the script:** ( 0 minutes  0.072 seconds)


.. _sphx_glr_download_auto_examples_plot_sparsecone.py:


.. only :: html

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



  .. container:: sphx-glr-download

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



  .. container:: sphx-glr-download

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


.. only:: html

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

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