Examples
========

Duplication of meshes
----------------------

Let ma_1 be a mesh that already contains the meshes:

.. code-block:: text
 M1 M2 M3

and the group of elements:

.. code-block:: text
 shell: M1 M2

Each stitch is based on the following knots:

.. code-block:: text
 M1: N1 N2 N3
M2: N3 N4 N5
M3: N4 N5 N6

my_2 = CREA_MAILLAGE (MAILLAGE = my_1,
CREA_MAILLE = _F (NOM = ground,
GROUP_MA = 'shell',
PREF_MAILLE = 'A',
PREF_NUME = 100,),
)

After calling command CREA_MAILLAGE, the new mesh then contains:


* mesh groups:


* shell (initial)


* ground = (meshes: A100 A101)


* the stitches are based on the following knots:


* M1: N1 N2 N3


* M2: N3 N4 N5


* M3: N4 N5 N6


* A100: N1 N2 N3


* A101: N3 N4 N5


Transforming triangles with 6 knots into triangles with 7 knots
------------------------------------------------------------

.. code-block:: text
 my_2 = CREA_MAILLAGE (MAILLAGE = my_1,
MODI_MAILLE = _F (GROUP_MA = 'triangle',
OPTION = 'TRIA6_7',
PREF_NOEUD = 'NMI',
PREF_NUME = 10,),
)

Suppose that in ma_1 the GROUP_MA triangle is composed of two meshes M1, M2 with the following nodes:

M1: N1 N2 N3 N3 N4 N5 N6

M2: N1 N2 N7 N7 N4 N8 N9

In the mesh ma_2, the two meshes M 1, M 2 will have the following nodes:

M1: N1 N2 N3 N3 N4 N4 N5 N6 NMI10

M2: N1 N2 N7 N7 N4 N8 N9 NMI11


Transforming quadrangles with 4 knots into triangles with 3 knots
--------------------------------------------------------------

This example is from test SSLV04E:

The geometry, representing a quarter of a disk, is meshed in a quadrangle. We want one eighth of the disk to be meshed in a triangle.


.. code-block:: text

    ma = CREA_MAILLAGE (MAILLAGE = m0,
MODI_MAILLE = _F (GROUP_MA = 'S2',
OPTION = 'QUAD_TRIA3',
PREF_MAILLE = 'MS',
PREF_NUME = 1,),
)

Example of using DECOUPE_LAC
-------------------------------------

This example comes from the zzzz383 test cases.


.. image:: images/100000000000033E000001F6A3CCBE3A2FB50D6F.png
    :width: 3.4445in
    :height: 2.3071in


.. _RefImage_100000000000033E000001F6A3CCBE3A2FB50D6F.png:

Initial mesh

Mesh with patch