1. Generate the first mesh
==========================

Goal
----
Generate segmentation figures, ``mesh.geo``, and ``mesh.msh``.

Configuration
-------------
Use the example ``parameters.toml`` and ``microsystem.png`` files.

Command
-------

.. code-block:: console

   pymm -i microsystem.png -p parameters.toml -t mesh

How it works
------------
The input image is segmented, external and interior contours are approximated,
the Gmsh template is rendered, and Gmsh creates the three-dimensional mesh.

Result
------
The output folder contains four diagnostic PNG files plus ``mesh.geo`` and
``mesh.msh``.

The generated files are written under:

.. code-block:: text

   output/
   ├── binary_image.png
   └── extracted_border.png
   └── interior_grains_border.png
   └── interior_grains.png
   └── mesh.geo
   └── mesh.msh

Next
----
Continue with :doc:`run-flow`.