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Sam Calisch
pyframe3dd
Commits
66afd596
Commit
66afd596
authored
Nov 14, 2017
by
Soma Mitra-Behura
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updated simulate fold python file
parent
dff60341
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1
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1 changed file
ex/simulate_FOLD.py
+69
-27
69 additions, 27 deletions
ex/simulate_FOLD.py
with
69 additions
and
27 deletions
ex/simulate_FOLD.py
+
69
−
27
View file @
66afd596
...
...
@@ -8,6 +8,54 @@ import subprocess
import
json
import
sys
def
plot_connections
(
args
,
nodes
,
connect
,
constraints
=
None
,
loads
=
None
):
#for debug only, this is slow!
import
matplotlib
as
mpl
from
mpl_toolkits.mplot3d
import
Axes3D
import
numpy
as
np
import
matplotlib.pyplot
as
plt
fig
=
plt
.
figure
()
ax
=
fig
.
gca
(
projection
=
'
3d
'
)
with
open
(
args
.
base_filename
+
"
.fold
"
)
as
data_file
:
fold
=
json
.
load
(
data_file
)
verts
=
args
.
l
*
asarray
(
fold
[
"
vertices_coords
"
])
ax
.
plot
(
nodes
[:,
0
],
nodes
[:,
1
],
nodes
[:,
2
],
ls
=
""
,
marker
=
"
o
"
)
#print loads
#print len(loads)
if
constraints
==
None
:
pass
elif
len
(
constraints
)
>
0
:
for
cons
in
constraints
:
node
=
cons
[
'
node
'
]
dof
=
cons
[
'
DOF
'
]
val
=
cons
[
'
value
'
]
# ax.text(verts[cons['node']][0],verts[cons['node']][1],verts[cons['node']][2],cons['DOF'])
#print dof
if
dof
==
0
:
ax
.
quiver
((
verts
[
node
][
0
]
-
0.1
),(
verts
[
node
][
1
]),(
verts
[
node
][
2
]),(
1
),(
0
),(
0
),
length
=
0.1
,
normalize
=
True
)
if
dof
==
1
:
ax
.
quiver
((
verts
[
node
][
0
]),(
verts
[
node
][
1
]
-
0.1
),(
verts
[
node
][
2
]),(
0
),(
1
),(
0
),
length
=
0.1
,
normalize
=
True
)
if
dof
==
2
:
ax
.
quiver
((
verts
[
node
][
0
]),(
verts
[
node
][
1
]),(
verts
[
node
][
2
]
-
0.1
),(
0
),(
0
),(
1
),
length
=
0.1
,
normalize
=
True
)
#if loads==None:
# print 'got here'
# pass
if
len
(
loads
)
>
0
:
#print 'got here'
for
load
in
loads
:
node
=
load
[
'
node
'
]
dof
=
load
[
'
DOF
'
]
print
dof
if
dof
==
0
:
ax
.
quiver
((
verts
[
node
][
0
]
-
0.1
),(
verts
[
node
][
1
]),(
verts
[
node
][
2
]),(
1
),(
0
),(
0
),
length
=
0.1
,
normalize
=
True
,
color
=
'
r
'
)
if
dof
==
1
:
ax
.
quiver
((
verts
[
node
][
0
]),(
verts
[
node
][
1
]
-
0.1
),(
verts
[
node
][
2
]),(
0
),(
1
),(
0
),
length
=
0.1
,
normalize
=
True
,
color
=
'
r
'
)
if
dof
==
2
:
ax
.
quiver
((
verts
[
node
][
0
]),(
verts
[
node
][
1
]),(
verts
[
node
][
2
]
-
0.1
),(
0
),(
0
),(
1
),
length
=
0.1
,
normalize
=
True
,
color
=
'
r
'
)
for
seg
in
connect
:
ax
.
plot
(
nodes
[
seg
,
0
],
nodes
[
seg
,
1
],
nodes
[
seg
,
2
],
c
=
'
g
'
)
plt
.
show
()
def
run_frame3dd
(
args
,
nodes
,
global_args
,
beam_sets
,
constraints
,
loads
):
write_frame3dd_file
(
nodes
,
global_args
,
beam_sets
,
constraints
,
loads
)
cmd
=
[
"
frame3dd
"
,
"
-i
"
,
global_args
[
'
frame3dd_filename
'
]
+
'
.csv
'
]
...
...
@@ -32,31 +80,19 @@ def build(args):
with
open
(
args
.
base_filename
+
"
.fold
"
)
as
data_file
:
fold
=
json
.
load
(
data_file
)
verts
=
asarray
(
fold
[
"
vertices_coords
"
])
print
verts
edges
=
asarray
(
fold
[
"
edges_vertices
"
])
print
edges
faces
=
asarray
(
fold
[
"
faces_vertices
"
])
print
faces
print
len
(
faces
)
if
args
.
facet_model
==
'
N4B5
'
:
for
face
in
faces
:
try
:
print
'
Current face is
'
,
face
,
'
and type is
'
,
type
(
face
)
p4
=
face
[
3
]
print
'
New edge is
'
,
array
([
face
[
0
],
face
[
2
]])
# edges = append(edges, array([face[0],face[2]]))
# concatenate(edges, array([face[0],face[2]]))
edges
=
vstack
([
edges
,
array
([
face
[
0
],
face
[
2
]])])
# edges.append(array([face[0],face[2]]))
print
'
Updated edges list is
'
,
edges
sys
.
exit
(
0
)
except
:
print
'
One of input faces is a triangle.
'
if
args
.
facet_model
==
'
N4B6
'
:
for
face
in
faces
:
try
:
edges
=
vstack
([
edges
,
[
array
([
face
[
0
],
face
[
2
]]),
array
([
face
[
1
],
face
[
3
]])]])
print
edges
except
:
print
'
One of input faces is a triangle.
'
if
args
.
facet_model
==
'
N5B8
'
:
...
...
@@ -70,21 +106,24 @@ def build(args):
ys
=
[
p0
[
1
],
p1
[
1
],
p2
[
1
],
p3
[
1
]]
zs
=
[
p0
[
2
],
p1
[
2
],
p2
[
2
],
p3
[
2
]]
verts
=
vstack
([
verts
,
array
([
mean
(
xs
),
mean
(
ys
),
mean
(
zs
)])])
# verts.append([mean(xs),mean(ys),mean(zs)])
edges
=
vstack
([
edges
,[
array
([
face
[
0
],
len
(
verts
)
-
1
]),
array
([
face
[
1
],
len
(
verts
)
-
1
]),
array
([
face
[
2
],
len
(
verts
)
-
1
]),
array
([
face
[
3
],
len
(
verts
)
-
1
])]])
print
verts
print
edges
# edges.append([face[0],len(verts)-1])
# edges.append([face[1],len(verts)-1])
# edges.append([face[2],len(verts)-1])
# edges.append([face[3],len(verts)-1])
except
:
print
'
One of input faces is a triangle.
'
# print verts, edges
# sys.exit(0)
return
args
.
l
*
verts
,
edges
# return args.l*array([[0,0,0],[0,0,1.]]), array([[0,1]])
def
build_constraints
():
constraints
=
[{
'
node
'
:
0
,
'
DOF
'
:
dof
,
'
value
'
:
0
}
for
dof
in
[
0
,
1
,
2
,
3
,
4
,
5
]]
constraints
.
extend
([{
'
node
'
:
1
,
'
DOF
'
:
dof
,
'
value
'
:
0
}
for
dof
in
[
0
,
1
,
2
,
3
,
4
,
5
]])
constraints
.
extend
([{
'
node
'
:
3
,
'
DOF
'
:
dof
,
'
value
'
:
0
}
for
dof
in
[
0
,
1
,
2
,
3
,
4
,
5
]])
constraints
.
extend
([{
'
node
'
:
4
,
'
DOF
'
:
dof
,
'
value
'
:
0
}
for
dof
in
[
0
,
1
,
2
,
3
,
4
,
5
]])
constraints
.
extend
([{
'
node
'
:
5
,
'
DOF
'
:
dof
,
'
value
'
:
0
}
for
dof
in
[
0
,
1
,
2
,
3
,
4
,
5
]])
return
constraints
def
build_loads
():
loads
=
[{
'
node
'
:
2
,
'
DOF
'
:
0
,
'
value
'
:
-
args
.
force
}]
return
loads
def
run_simulation
(
args
):
#set up simulation
nodes
,
rods
=
build
(
args
)
...
...
@@ -97,11 +136,11 @@ def run_simulation(args):
(
rods
,{
'
E
'
:
args
.
E
,
'
nu
'
:
args
.
nu
,
'
rho
'
:
args
.
rho
,
'
cross_section
'
:
'
circular
'
,
'
d1
'
:
args
.
d
,
'
th
'
:
args
.
t
,
'
roll
'
:
0.
,
'
loads
'
:[],
'
beam_divisions
'
:
args
.
bd
,
'
prestresses
'
:[]})
]
constraints
=
[{
'
node
'
:
0
,
'
DOF
'
:
dof
,
'
value
'
:
0
}
for
dof
in
[
0
,
1
,
2
]]
constraints
.
extend
([{
'
node
'
:
1
,
'
DOF
'
:
dof
,
'
value
'
:
0
}
for
dof
in
[
0
,
1
,
2
,
3
,
4
,
5
]])
constraints
.
extend
([{
'
node
'
:
2
,
'
DOF
'
:
dof
,
'
value
'
:
0
}
for
dof
in
[
0
,
1
,
2
]])
constraints
=
build_constraints
()
print
'
These are constraints:
'
,
constraints
loads
=
[{
'
node
'
:
3
,
'
DOF
'
:
2
,
'
value
'
:
-
args
.
force
}]
loads
=
build_loads
()
print
'
The are loads
'
,
loads
run_frame3dd
(
args
,
nodes
,
global_args
,
beam_sets
,
constraints
,
loads
)
results
=
{}
...
...
@@ -149,9 +188,9 @@ def find_stability_threshold(args):
if
__name__
==
'
__main__
'
:
parser
=
argparse
.
ArgumentParser
()
parser
.
add_argument
(
'
-M
'
,
'
--mode
'
,
choices
=
(
'
simulate
'
,
'
search
'
),
required
=
True
)
parser
.
add_argument
(
'
-M
'
,
'
--mode
'
,
choices
=
(
'
simulate
'
,
'
search
'
,
'
visualize
'
),
required
=
True
)
parser
.
add_argument
(
'
-Q
'
,
'
--quiet
'
,
action
=
'
store_true
'
,
help
=
'
Whether to suppress frame3dd output
'
)
parser
.
add_argument
(
"
-f
"
,
"
--force
"
,
type
=
double
,
default
=
1
0e90
,
help
=
"
force to apply
"
)
parser
.
add_argument
(
"
-f
"
,
"
--force
"
,
type
=
double
,
default
=
1
,
help
=
"
force to apply
"
)
parser
.
add_argument
(
"
-fr
"
,
"
--force_res
"
,
type
=
double
,
default
=
.
01
,
help
=
"
Final resolution of force for search mode
"
)
parser
.
add_argument
(
"
-d
"
,
"
--d
"
,
type
=
double
,
default
=
.
01
,
help
=
"
diameter of tube
"
)
...
...
@@ -179,6 +218,9 @@ if __name__ == '__main__':
res
=
run_simulation
(
args
)
print
"
Fundamental frequency: %.3f Hz
"
%
res
[
'
fundamental_frequency
'
]
print
"
Stress: %.3f MPa
"
%
(
res
[
'
stress
'
]
/
1e6
)
elif
args
.
mode
==
'
visualize
'
:
nodes
,
rods
=
build
(
args
)
plot_connections
(
args
,
nodes
,
rods
,
build_constraints
(),
build_loads
())
else
:
assert
(
0
)
#should not be here
...
...
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