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

.. only:: html

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

        :ref:`Go to the end <sphx_glr_download_content_examples_01-maps_plot_block_in_layer.py>`
        to download the full example code.

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

.. _sphx_glr_content_examples_01-maps_plot_block_in_layer.py:


Maps: Parametric Block in a Layer
===================================

Parametric description of a block confined to a layer in a
wholespace. The mapping can be applied in 2D or 3D. Here we show a 2D
example.

The model is given by

.. code::

    m = np.r_[
       'value of the background',
       'value in the layer',
       'value in the block',
       'center of the layer (depth)',
       'thickness of the layer',
       'x-center of block',
       'width of the block'
    ]

.. GENERATED FROM PYTHON SOURCE LINES 24-58



.. image-sg:: /content/examples/01-maps/images/sphx_glr_plot_block_in_layer_001.png
   :alt: plot block in layer
   :srcset: /content/examples/01-maps/images/sphx_glr_plot_block_in_layer_001.png
   :class: sphx-glr-single-img





.. code-block:: Python


    import discretize
    from simpeg import maps
    import numpy as np
    import matplotlib.pyplot as plt


    def run(plotIt=True):
        mesh = discretize.TensorMesh([50, 50], x0="CC")  # 2D Tensor Mesh
        mapping = maps.ParametricBlockInLayer(mesh)  # mapping

        m = np.hstack(
            np.r_[
                1.0,  # value of the background
                2.0,  # value in the layer
                3.0,  # value in the block
                -0.1,  # center of the layer (depth)
                0.2,  # thickness of the layer
                0.3,  # x-center of block
                0.2,  # width of the block
            ]
        )

        # apply the mapping to define the physical property on the mesh
        rho = mapping * m

        if plotIt is True:
            fig, ax = plt.subplots(1, 1, figsize=(4, 6))
            mesh.plot_image(rho, ax=ax)


    if __name__ == "__main__":
        run()
        plt.show()


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

   **Total running time of the script:** (0 minutes 0.211 seconds)

**Estimated memory usage:**  9 MB


.. _sphx_glr_download_content_examples_01-maps_plot_block_in_layer.py:

.. only:: html

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

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

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

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

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


.. only:: html

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

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