mirror of
https://git.salome-platform.org/gitpub/modules/smesh.git
synced 2024-11-16 10:38:33 +05:00
139 lines
3.5 KiB
Plaintext
139 lines
3.5 KiB
Plaintext
/*!
|
|
|
|
\page smeshpy_interface_page Python interface
|
|
|
|
Python package smesh defines several classes, destined for easy and
|
|
clear mesh creation and edition.
|
|
|
|
Documentation for smesh package is available in two forms:
|
|
|
|
The <a href="smeshpy_doc/modules.html"> structured
|
|
documentation for smesh package</a>, where all methods and
|
|
classes are grouped by their functionality, like it is done in the GUI documentation
|
|
and the \ref smeshDC "linear documentation for smesh package"
|
|
grouped only by classes, declared in the smesh.py file.
|
|
|
|
The main page of the \ref smeshDC "linear documentation for smesh package"
|
|
contains a list of data structures and a list of
|
|
functions, provided by the package smesh.py. The first item in
|
|
the list of data structures (\ref smeshDC::smeshDC "class smesh")
|
|
also represents documentation for the methods of the package smesh.py itself.
|
|
|
|
The package smesh.py provides an interface to create and handle
|
|
meshes. Use it to create an empty mesh or to import it from the data file.
|
|
|
|
Once a mesh has been created, it is possible to manage it via its own
|
|
methods, described at \ref smeshDC::Mesh "class Mesh" documentation
|
|
(it is also accessible by the second item "class Mesh" in the list of data structures).
|
|
|
|
Class \b Mesh allows assigning algorithms to a mesh.
|
|
Please note, that some algorithms, included in the standard SALOME
|
|
distribution are always available:
|
|
- REGULAR (1D)
|
|
- COMPOSITE (1D)
|
|
- MEFISTO (2D)
|
|
- Quadrangle (2D)
|
|
- Hexa(3D)
|
|
- etc...
|
|
|
|
To add hypotheses, use the interfaces, provided by the assigned
|
|
algorithms.
|
|
|
|
Below you can see an example of usage of the package smesh for 3d mesh generation.
|
|
|
|
\anchor example_3d_mesh
|
|
<h2>Example of 3d mesh generation:</h2>
|
|
|
|
\code
|
|
from geompy import *
|
|
import smesh
|
|
|
|
###
|
|
# Geometry: an assembly of a box, a cylinder and a truncated cone
|
|
# meshed with tetrahedral
|
|
###
|
|
|
|
# Define values
|
|
name = "ex21_lamp"
|
|
cote = 60
|
|
section = 20
|
|
size = 200
|
|
radius_1 = 80
|
|
radius_2 = 40
|
|
height = 100
|
|
|
|
# Build a box
|
|
box = MakeBox(-cote, -cote, -cote, +cote, +cote, +cote)
|
|
|
|
# Build a cylinder
|
|
pt1 = MakeVertex(0, 0, cote/3)
|
|
di1 = MakeVectorDXDYDZ(0, 0, 1)
|
|
cyl = MakeCylinder(pt1, di1, section, size)
|
|
|
|
# Build a truncated cone
|
|
pt2 = MakeVertex(0, 0, size)
|
|
cone = MakeCone(pt2, di1, radius_1, radius_2, height)
|
|
|
|
# Fuse
|
|
box_cyl = MakeFuse(box, cyl)
|
|
piece = MakeFuse(box_cyl, cone)
|
|
|
|
# Add to the study
|
|
addToStudy(piece, name)
|
|
|
|
# Create a group of faces
|
|
group = CreateGroup(piece, ShapeType["FACE"])
|
|
group_name = name + "_grp"
|
|
addToStudy(group, group_name)
|
|
group.SetName(group_name)
|
|
|
|
# Add faces to the group
|
|
faces = SubShapeAllIDs(piece, ShapeType["FACE"])
|
|
UnionIDs(group, faces)
|
|
|
|
###
|
|
# Create a mesh
|
|
###
|
|
|
|
# Define a mesh on a geometry
|
|
tetra = smesh.Mesh(piece, name)
|
|
|
|
# Define 1D hypothesis
|
|
algo1d = tetra.Segment()
|
|
algo1d.LocalLength(10)
|
|
|
|
# Define 2D hypothesis
|
|
algo2d = tetra.Triangle()
|
|
algo2d.LengthFromEdges()
|
|
|
|
# Define 3D hypothesis
|
|
algo3d = tetra.Tetrahedron()
|
|
algo3d.MaxElementVolume(100)
|
|
|
|
# Compute the mesh
|
|
tetra.Compute()
|
|
|
|
# Create a groupe of faces
|
|
tetra.Group(group)
|
|
|
|
\endcode
|
|
|
|
Examples of Python scripts for all Mesh operations are available by
|
|
the following links:
|
|
|
|
- \subpage tui_creating_meshes_page
|
|
- \subpage tui_cartesian_algo
|
|
- \subpage tui_viewing_meshes_page
|
|
- \subpage tui_defining_hypotheses_page
|
|
- \subpage tui_quality_controls_page
|
|
- \subpage tui_filters_page
|
|
- \subpage tui_grouping_elements_page
|
|
- \subpage tui_modifying_meshes_page
|
|
- \subpage tui_transforming_meshes_page
|
|
- \subpage tui_notebook_smesh_page
|
|
- \subpage tui_measurements_page
|
|
- \subpage tui_generate_flat_elements_page
|
|
- \subpage tui_work_on_objects_from_gui
|
|
|
|
*/
|