mirror of
https://git.salome-platform.org/gitpub/modules/smesh.git
synced 2024-12-28 10:20:34 +05:00
112 lines
3.6 KiB
ReStructuredText
112 lines
3.6 KiB
ReStructuredText
.. _smeshpy_interface_page:
|
|
|
|
****************
|
|
Python interface
|
|
****************
|
|
|
|
Python API of SALOME Mesh module defines several classes that can
|
|
be used for easy mesh creation and edition.
|
|
|
|
Documentation of SALOME Mesh module Python API is available in two forms:
|
|
|
|
- :doc:`Structured documentation <modules>`, where all methods and classes are grouped by their functionality.
|
|
|
|
- :ref:`Linear documentation <modindex>` grouped only by classes, declared in the :mod:`smeshBuilder` Python module.
|
|
|
|
With SALOME 7.2, the Python interface for Mesh has been slightly modified to offer new functionality.
|
|
You may have to modify your scripts generated with SALOME 6 or older versions.
|
|
Please see :ref:`smesh_migration_page`.
|
|
|
|
Class :class:`smeshBuilder.smeshBuilder` provides an interface to create and handle
|
|
meshes. It can be used to create an empty mesh or to import mesh from the data file.
|
|
|
|
As soon as a mesh is created, it is possible to manage it via its own
|
|
methods, described in class :class:`smeshBuilder.Mesh` documentation.
|
|
|
|
Class :class:`smeshstudytools.SMeshStudyTools` provides several methods to manipulate mesh objects in Salome study.
|
|
|
|
A usual workflow to generate a mesh on geometry is following:
|
|
|
|
#. Create an instance of :class:`smeshBuilder.smeshBuilder`:
|
|
.. code-block:: python
|
|
|
|
from salome.smesh import smeshBuilder
|
|
smesh = smeshBuilder.New()
|
|
|
|
#. Create a :class:`smeshBuilder.Mesh` object:
|
|
|
|
.. code-block:: python
|
|
|
|
mesh = smesh.Mesh( geometry )
|
|
|
|
#. Create and assign :ref:`algorithms <basic_meshing_algos_page>` by calling corresponding methods of the mesh. If a sub-shape is provided as an argument, a :ref:`sub-mesh <constructing_submeshes_page>` is implicitly created on this sub-shape:
|
|
.. code-block:: python
|
|
|
|
regular1D = mesh.Segment()
|
|
quadrangle = mesh.Quadrangle()
|
|
# use other 2D algorithm on a face -- a sub-mesh appears in the mesh
|
|
triangle = mesh.Triangle( face )
|
|
|
|
#. Create and assign :ref:`hypotheses <about_hypo_page>` by calling corresponding methods of algorithms:
|
|
.. code-block:: python
|
|
|
|
regular1D.LocalLength( 10. )
|
|
quadrangle.Reduced()
|
|
triangle.SetMaxSize( 20. )
|
|
triangle.SetFineness( smeshBuilder.VeryCoarse )
|
|
|
|
#. :ref:`Compute the mesh <compute_anchor>` (generate mesh nodes and elements):
|
|
.. code-block:: python
|
|
|
|
mesh.Compute()
|
|
|
|
An easiest way to start with Python scripting is to do something in
|
|
GUI and then to get a corresponding Python script via
|
|
**File > Dump Study** menu item. Don't forget that you can get
|
|
all methods of any object in hand (e.g. a mesh group or a hypothesis)
|
|
by calling *dir()* Python built-in function.
|
|
|
|
All methods of the :class:`Mesh Group <SMESH.SMESH_GroupBase>` can be found in :ref:`tui_create_standalone_group` sample script.
|
|
|
|
An example below demonstrates usage of the Python API for 3D mesh
|
|
generation and for retrieving basic information on mesh nodes, elements and groups.
|
|
|
|
.. _example_3d_mesh:
|
|
|
|
Example of 3d mesh generation:
|
|
##############################
|
|
|
|
.. literalinclude:: ../../examples/mesh_3d.py
|
|
:language: python
|
|
|
|
:download:`Download this script <../../examples/mesh_3d.py>`
|
|
|
|
Examples of Python scripts for Mesh operations are available by
|
|
the following links:
|
|
|
|
.. toctree::
|
|
:titlesonly:
|
|
|
|
tui_creating_meshes
|
|
tui_defining_hypotheses
|
|
tui_grouping_elements
|
|
tui_filters
|
|
tui_modifying_meshes
|
|
tui_transforming_meshes
|
|
tui_viewing_meshes
|
|
tui_quality_controls
|
|
tui_adaptation
|
|
tui_measurements
|
|
tui_work_on_objects_from_gui
|
|
tui_notebook_smesh
|
|
|
|
.. toctree::
|
|
:hidden:
|
|
|
|
smesh_migration.rst
|
|
smeshBuilder.rst
|
|
StdMeshersBuilder.rst
|
|
smeshstudytools.rst
|
|
modules.rst
|
|
smesh_module.rst
|