.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "gallery/3Dvispy/12-surf-overlay.py"
.. LINE NUMBERS ARE GIVEN BELOW.

.. only:: html

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

        :ref:`Go to the end <sphx_glr_download_gallery_3Dvispy_12-surf-overlay.py>`
        to download the full example code

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

.. _sphx_glr_gallery_3Dvispy_12-surf-overlay.py:


Overlaying channels on a horizon display
==========================================

.. image:: ../../_static/cigvis/3Dvispy/12.png
    :alt: image
    :align: center

.. GENERATED FROM PYTHON SOURCE LINES 13-59

.. code-block:: default


    # sphinx_gallery_thumbnail_path = '_static/cigvis/3Dvispy/12.png'

    import numpy as np
    import cigvis
    from cigvis import colormap
    from pathlib import Path
    from skimage.filters import gaussian

    root = Path(__file__).resolve().parent.parent.parent
    root = root / 'data/channel/'

    n1, n2, n3 = 256, 256, 256
    shape = (n1, n2, n3)

    # seismic
    seis = np.memmap(root / 'Seismic_6.dat', np.float32, mode='c', shape=shape)
    # channel label
    labl = np.memmap(root / 'Label_6.dat', np.uint8, mode='c', shape=shape)
    # surface
    sf = np.fromfile(root / 'mh2.dat', np.float32).reshape(n1, n2)

    # amplitude of channel's label
    labl_sf = cigvis.utils.surfaceutils.interp_surf(labl, sf, order=1)

    # labl_sf only contains 0 and 1, smooth the labl_sf to simulate the probability, this is not necessary
    labl_sf = gaussian(labl_sf, sigma=10)
    labl_sf = labl_sf / labl_sf.max()

    # set a colormap for foreground, i.e., label
    labl_cmap = colormap.set_alpha_except_min('jet', 0.6, False)

    nodes = cigvis.create_slices(seis, cmap='Petrel')
    nodes += cigvis.create_surfaces(
        sf,
        seis,
        value_type=['amp', labl_sf], # two value types
        cmap=['Petrel', labl_cmap], # first is for seismic, second is for label
        clim=[[seis.min(), seis.max()], [0, 1]], # clim for two value types
    )  # set as 'value'

    # idx=0 means select the first Surface node of the nodes (though there is only one Surface node in this case).
    # idx2=1 means select the second cmap, and clim for the select Surface node, (`labl_cmap` in this case).
    nodes += cigvis.create_colorbar_from_nodes(nodes, 'surface', select='surface', idx=0, idx2=1)

    cigvis.plot3D(nodes, xyz_axis=False)


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

   **Total running time of the script:** (0 minutes 0.000 seconds)


.. _sphx_glr_download_gallery_3Dvispy_12-surf-overlay.py:

.. only:: html

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




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

      :download:`Download Python source code: 12-surf-overlay.py <12-surf-overlay.py>`

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

      :download:`Download Jupyter notebook: 12-surf-overlay.ipynb <12-surf-overlay.ipynb>`


.. only:: html

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

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