.. _sphx_glr_auto_examples_howto_preprocessing:

Pre-processing: preparing the simulation
========================================

This section shows how to create bulk meshes for the OGS simulation.
To complete the model, boundary meshes and a prj file must be created in
addition to the bulk mesh. Examples on those subjects will be added in the
future.



.. raw:: html

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

.. thumbnail-parent-div-open

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    <div class="sphx-glr-thumbcontainer" tooltip="Creating a BHE mesh (Borehole Heat Exchanger)">

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  .. image:: /auto_examples/howto_preprocessing/images/thumb/sphx_glr_plot_gen_bhe_mesh_thumb.png
    :alt:

  :ref:`sphx_glr_auto_examples_howto_preprocessing_plot_gen_bhe_mesh.py`

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      <div class="sphx-glr-thumbnail-title">Creating a BHE mesh (Borehole Heat Exchanger)</div>
    </div>


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    <div class="sphx-glr-thumbcontainer" tooltip="For this example we create meshes from pyvista surfaces. See other examples for different meshing algorithms.">

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  .. image:: /auto_examples/howto_preprocessing/images/thumb/sphx_glr_plot_meshlib_pyvista_input_thumb.png
    :alt:

  :ref:`sphx_glr_auto_examples_howto_preprocessing_plot_meshlib_pyvista_input.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Creating meshes from pyvista surfaces</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="For this example we create meshes from surface layers.">

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  .. image:: /auto_examples/howto_preprocessing/images/thumb/sphx_glr_plot_meshlib_vtu_input_thumb.png
    :alt:

  :ref:`sphx_glr_auto_examples_howto_preprocessing_plot_meshlib_vtu_input.py`

.. raw:: html

      <div class="sphx-glr-thumbnail-title">Creating meshes from vtu surface files</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="This short example showcases the function remesh_with_tri which allows us to take an existing mesh and re-discretize it with triangle elements. This is useful for models, where the underlying meshing script is not available or hard to adapt.">

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  .. image:: /auto_examples/howto_preprocessing/images/thumb/sphx_glr_plot_remeshing_thumb.png
    :alt:

  :ref:`sphx_glr_auto_examples_howto_preprocessing_plot_remeshing.py`

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      <div class="sphx-glr-thumbnail-title">Remeshing with triangle elements</div>
    </div>


.. raw:: html

    <div class="sphx-glr-thumbcontainer" tooltip="In this example we present how to create a unstructured grid in vtk format (\*.vtu) from a shapefile.">

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  .. image:: /auto_examples/howto_preprocessing/images/thumb/sphx_glr_plot_shapefile_meshing_thumb.png
    :alt:

  :ref:`sphx_glr_auto_examples_howto_preprocessing_plot_shapefile_meshing.py`

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      <div class="sphx-glr-thumbnail-title">Meshing a shapefile</div>
    </div>


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    <div class="sphx-glr-thumbcontainer" tooltip="Terrain meshing">

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  .. image:: /auto_examples/howto_preprocessing/images/thumb/sphx_glr_plot_terrain_meshing_thumb.png
    :alt:

  :ref:`sphx_glr_auto_examples_howto_preprocessing_plot_terrain_meshing.py`

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      <div class="sphx-glr-thumbnail-title">Terrain meshing</div>
    </div>


.. thumbnail-parent-div-close

.. raw:: html

    </div>


.. toctree::
   :hidden:

   /auto_examples/howto_preprocessing/plot_gen_bhe_mesh
   /auto_examples/howto_preprocessing/plot_meshlib_pyvista_input
   /auto_examples/howto_preprocessing/plot_meshlib_vtu_input
   /auto_examples/howto_preprocessing/plot_remeshing
   /auto_examples/howto_preprocessing/plot_shapefile_meshing
   /auto_examples/howto_preprocessing/plot_terrain_meshing