mirror of
https://git.salome-platform.org/gitpub/modules/smesh.git
synced 2024-09-22 10:42:52 +05:00
61 lines
2.1 KiB
Python
61 lines
2.1 KiB
Python
# Add Polyhedron
|
|
|
|
import math
|
|
|
|
import salome
|
|
salome.salome_init_without_session()
|
|
|
|
from salome.smesh import smeshBuilder
|
|
|
|
smesh_builder = smeshBuilder.New()
|
|
|
|
# create an empty mesh structure
|
|
mesh = smesh_builder.Mesh()
|
|
|
|
# Create nodes for 12-hedron with pentagonal faces
|
|
al = 2 * math.pi / 5.0
|
|
cosal = math.cos(al)
|
|
aa = 13
|
|
rr = aa / (2.0 * math.sin(al/2.0))
|
|
dr = 2.0 * rr * cosal
|
|
r1 = rr + dr
|
|
dh = rr * math.sqrt(2.0 * (1.0 - cosal * (1.0 + 2.0 * cosal)))
|
|
hh = 2.0 * dh - dr * (rr*(cosal - 1) + (rr + dr)*(math.cos(al/2) - 1)) / dh
|
|
|
|
dd = [] # top
|
|
cc = [] # below top
|
|
bb = [] # above bottom
|
|
aa = [] # bottom
|
|
|
|
for i in range(5):
|
|
cos_bot = math.cos(i*al)
|
|
sin_bot = math.sin(i*al)
|
|
|
|
cos_top = math.cos(i*al + al/2.0)
|
|
sin_top = math.sin(i*al + al/2.0)
|
|
|
|
nd = mesh.AddNode(rr * cos_top, rr * sin_top, hh ) # top
|
|
nc = mesh.AddNode(r1 * cos_top, r1 * sin_top, hh - dh) # below top
|
|
nb = mesh.AddNode(r1 * cos_bot, r1 * sin_bot, dh) # above bottom
|
|
na = mesh.AddNode(rr * cos_bot, rr * sin_bot, 0) # bottom
|
|
dd.append(nd) # top
|
|
cc.append(nc) # below top
|
|
bb.append(nb) # above bottom
|
|
aa.append(na) # bottom
|
|
pass
|
|
|
|
# Create a polyhedral volume (12-hedron with pentagonal faces)
|
|
mesh.AddPolyhedralVolume([dd[0], dd[1], dd[2], dd[3], dd[4], # top
|
|
dd[0], cc[0], bb[1], cc[1], dd[1], # -
|
|
dd[1], cc[1], bb[2], cc[2], dd[2], # -
|
|
dd[2], cc[2], bb[3], cc[3], dd[3], # - below top
|
|
dd[3], cc[3], bb[4], cc[4], dd[4], # -
|
|
dd[4], cc[4], bb[0], cc[0], dd[0], # -
|
|
aa[4], bb[4], cc[4], bb[0], aa[0], # .
|
|
aa[3], bb[3], cc[3], bb[4], aa[4], # .
|
|
aa[2], bb[2], cc[2], bb[3], aa[3], # . above bottom
|
|
aa[1], bb[1], cc[1], bb[2], aa[2], # .
|
|
aa[0], bb[0], cc[0], bb[1], aa[1], # .
|
|
aa[0], aa[1], aa[2], aa[3], aa[4]], # bottom
|
|
[5,5,5,5,5,5,5,5,5,5,5,5])
|