1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
#############################################################
## ##
## Copyright (c) 2007-2017 by The University of Queensland ##
## Centre for Geoscience Computing ##
## http://earth.uq.edu.au/centre-geoscience-computing ##
## ##
## Primary Business: Brisbane, Queensland, Australia ##
## Licensed under the Open Software License version 3.0 ##
## http://www.apache.org/licenses/LICENSE-2.0 ##
## ##
#############################################################
from __future__ import division
from gengeo import *
#An example python script to generate a triangular prism of bonded particles
size=5.0
# Define region extremities:
minPoint = Vector3(-1.0*size,-1.0*size,-1.0*size)
maxPoint = Vector3(size,size,size)
# Define the volume to be filled with spheres:
tribox = TriBox (
minPoint = minPoint,
maxPoint = maxPoint,
inverted = False
)
tribox.addPlane(Plane(minPoint,Vector3(0.0,1.0,0.0)))
tribox.addPlane(Plane(minPoint,Vector3(0.0,0.0,1.0)))
tribox.addPlane(Plane(maxPoint,Vector3(0.0,0.0,-1.0)))
delta = maxPoint-minPoint
dx = delta.X()
dy = delta.Y()
tribox.addPlane(Plane(minPoint, Vector3(dy,-0.5*dx,0.0).unit()))
tribox.addPlane(Plane(maxPoint-Vector3(dx/2.0,0.0,0.0), Vector3(-1.0*dy,-0.5*dx,0.0).unit()))
# Create a multi-group neighbour table to contain the particles:
mntable = MNTable3D (
minPoint = minPoint,
maxPoint = maxPoint,
gridSize = 2.5
)
# Fill the volume with particles:
packer = InsertGenerator3D (
minRadius = 0.2,
maxRadius = 1.0,
insertFails = 1000,
maxIterations = 1000,
tolerance = 1.0e-6
)
# Generate the packing
packer.generatePacking(
volume = tribox,
ntable = mntable
)
# generate bonds between neighbouring particles
mntable.generateBonds(
tolerance = 1.0e-5,
bondID = 0
)
# write a geometry file in VTK format
mntable.write(
fileName = "temp/geo_example6.vtu",
outputStyle = 2
)
# write a geometry file in ESyS-Particle geo format
mntable.write(
fileName = "temp/geo_example6.geo",
outputStyle = 1
)
|
