smesh/doc/examples/defining_hypotheses_ex01.py
2023-03-29 14:18:23 +02:00

44 lines
1.4 KiB
Python

# Arithmetic Progression and Geometric Progression
import salome
salome.salome_init_without_session()
from salome.geom import geomBuilder
from salome.smesh import smeshBuilder
geom_builder = geomBuilder.New()
smesh_builder = smeshBuilder.New()
# create a box
box = geom_builder.MakeBoxDXDYDZ(10., 10., 10.)
geom_builder.addToStudy(box, "Box")
# create a hexahedral mesh on the box
hexa = smesh_builder.Mesh(box, "Box : hexahedrical mesh")
# create a Regular 1D algorithm for edges
algo1D = hexa.Segment()
# optionally reverse node distribution on certain edges
allEdges = geom_builder.SubShapeAllSorted( box, geom_builder.ShapeType["EDGE"])
reversedEdges = [ allEdges[0], allEdges[4] ]
# define "Arithmetic1D" hypothesis to cut all edges in several segments with increasing arithmetic length
algo1D.Arithmetic1D(1, 4, reversedEdges)
# define "Geometric Progression" hypothesis on one edge to cut this edge in segments with length increasing by 20% starting from 1
gpAlgo = hexa.Segment( allEdges[1] )
gpAlgo.GeometricProgression( 1, 1.2 )
# propagate distribution of nodes computed using "Geometric Progression" to parallel edges
gpAlgo.PropagationOfDistribution()
# create a quadrangle 2D algorithm for faces
hexa.Quadrangle()
# create a hexahedron 3D algorithm for solids
hexa.Hexahedron()
# compute the mesh
if not hexa.Compute(): raise Exception("Error when computing Mesh")