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C
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1.
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UCT
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x
h
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n
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s
ec
to
r
s
as
a
p
r
o
m
o
tio
n
al
v
eh
icle
[
1
]
.
Var
io
u
s
lar
g
e
,
v
er
y
p
r
esti
g
io
u
s
ex
h
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to
p
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o
m
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te
p
r
o
d
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cts,
s
er
v
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an
d
tech
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o
lo
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y
in
m
a
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y
cities
ar
o
u
n
d
th
e
wo
r
ld
.
Ma
n
y
co
m
p
an
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s
ar
e
in
ter
ested
in
p
ar
ticip
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g
in
ex
h
ib
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s
with
in
th
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in
d
u
s
tr
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g
r
o
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p
.
T
h
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ec
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s
e
b
y
p
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in
th
e
ex
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,
th
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co
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b
etter
r
ec
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g
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ized
b
y
b
o
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its
in
d
u
s
tr
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m
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s
.
Ap
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r
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r
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[
2
]
.
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ally
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lar
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co
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C
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b
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in
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r
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ed
f
o
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v
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p
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ate
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ials
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[
3
]
.
T
h
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m
ak
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en
ts
in
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co
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p
an
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'
s
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ar
k
etin
g
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g
et
[
4
]
.
An
d
,
th
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r
elativ
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co
s
ts
in
cu
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y
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co
m
p
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y
will
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n
ly
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u
tili
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d
f
o
r
a
r
elativ
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s
h
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t
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d
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f
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d
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,
v
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m
ay
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d
if
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tech
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T
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[
5
]
.
T
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tan
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r
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f
is
n
o
l
o
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g
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r
eq
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.
T
h
e
b
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ef
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r
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f
o
r
th
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in
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v
alid
Evaluation Warning : The document was created with Spire.PDF for Python.
I
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52
In
d
o
n
esian
J
E
lec
E
n
g
&
C
o
m
p
Sci
,
Vo
l.
3
8
,
No
.
1
,
Ap
r
il
20
2
5
:
3
6
7
-
3
8
0
368
f
o
r
a
lo
n
g
er
p
er
io
d
o
f
tim
e.
T
h
ey
will
n
o
t
b
e
lim
ited
t
o
j
u
s
t
a
f
ew
d
ay
s
as
with
c
o
n
v
en
tio
n
al
ex
h
ib
itio
n
p
er
io
d
s
.
Pro
d
u
cts
an
d
s
er
v
ic
es
ca
n
also
b
e
u
p
d
ated
ac
co
r
d
in
g
t
o
co
m
p
an
y
n
ee
d
s
.
I
n
ad
d
itio
n
,
a
v
ir
t
u
al
ex
h
ib
itio
n
ca
n
b
e
o
f
f
er
ed
th
r
o
u
g
h
o
u
t
th
e
wo
r
l
d
in
co
u
n
tr
ies
th
at
ar
e
in
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d
if
f
icu
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to
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ch
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s
in
g
co
n
v
en
tio
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al
ex
h
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b
itio
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s
[
5
]
.
No
t
o
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ly
th
at,
v
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tu
al
ex
h
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iti
o
n
s
ca
n
also
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e
n
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it
ex
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v
is
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r
s
.
I
t
will
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e
ea
s
ier
f
o
r
th
em
to
ac
ce
s
s
th
e
ex
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ib
itio
n
s
th
ey
w
an
t
to
v
is
it.
Vi
s
ito
r
s
d
o
n
'
t
h
av
e
to
b
o
th
er
leav
in
g
th
e
h
o
u
s
e,
ex
p
er
ien
ce
tr
af
f
ic
jam
s
o
n
th
e
r
o
ad
,
o
r
q
u
eu
e
to
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ter
th
e
ex
h
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d
o
o
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s
.
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ar
t
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m
th
at,
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s
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o
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o
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n
ee
d
to
b
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in
cr
o
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itio
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r
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o
m
s
.
R
ath
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th
ey
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n
s
ea
r
ch
f
o
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in
f
o
r
m
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m
f
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tab
ly
f
r
o
m
th
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o
wn
d
e
v
ices.
T
h
e
ex
h
ib
itio
n
will a
ls
o
b
e
av
ailab
le
f
o
r
v
is
ito
r
s
to
ac
ce
s
s
th
r
o
u
g
h
o
u
t th
e
d
ay
with
n
o
clo
s
in
g
tim
e.
T
h
e
u
s
e
o
f
v
ir
tu
al
r
ea
lity
tech
n
o
lo
g
y
will
also
b
r
in
g
its
o
wn
b
en
ef
its
.
I
m
p
lem
en
tin
g
v
ir
tu
a
l
r
ea
lity
in
ap
p
licatio
n
s
ca
n
c
r
ea
te
a
d
ee
p
er
an
d
m
o
r
e
in
ter
esti
n
g
u
s
er
e
x
p
er
ien
ce
[
6
]
.
User
s
ar
e
m
o
r
e
en
g
ag
ed
in
th
e
VR
ex
p
er
ien
ce
a
n
d
ca
n
in
ter
ac
t
with
in
f
o
r
m
atio
n
m
o
r
e
n
at
u
r
a
lly
[
7
]
.
An
im
m
e
r
s
iv
e
atm
o
s
p
h
er
e
ca
n
b
e
c
r
ea
ted
wh
er
e
u
s
er
s
f
ee
l
as
if
th
ey
ar
e
at
a
r
ea
l
ex
h
ib
itio
n
.
T
h
is
u
n
iq
u
e
asp
ec
t
o
f
h
av
in
g
v
ir
tu
al
r
ea
lity
will
h
elp
d
if
f
er
en
tiate
th
e
ap
p
licatio
n
s
b
ein
g
b
u
ilt
f
r
o
m
o
th
e
r
ap
p
lic
atio
n
s
th
at
ar
e
alr
ea
d
y
av
aila
b
le.
T
h
is
u
n
iq
u
e
n
ess
ca
n
also
in
cr
ea
s
e
u
s
er
in
ter
est
in
ch
o
o
s
in
g
th
e
ap
p
licatio
n
.
Ho
wev
er
,
v
ir
t
u
al
ex
h
i
b
itio
n
s
also
h
av
e
th
eir
d
r
awb
ac
k
s
.
Dif
f
icu
lty
in
m
ea
s
u
r
in
g
ef
f
ec
tiv
en
ess
,
lo
w
q
u
ality
o
f
in
ter
ac
tio
n
,
u
n
s
u
p
p
o
r
tiv
e
tech
n
o
lo
g
y
,
an
d
v
is
ito
r
in
civ
ilit
y
ar
e
s
o
m
e
o
f
th
e
c
h
allen
g
es
f
ac
ed
b
y
v
ir
tu
al
ex
h
i
b
itio
n
s
[
5
]
.
Ho
we
v
er
,
it
is
h
o
p
ed
t
h
at
with
a
v
ir
tu
al
ex
h
ib
itio
n
s
y
s
tem
,
ex
h
i
b
ito
r
s
will
h
av
e
an
alter
n
ativ
e
to
co
n
v
en
tio
n
al
e
x
h
ib
itio
n
s
.
W
ith
th
ese
ad
d
iti
o
n
al
o
p
tio
n
s
,
c
o
m
p
a
n
ies
ca
n
ch
o
o
s
e
m
ar
k
etin
g
s
tr
ateg
ies th
at
ar
e
b
etter
s
u
ited
to
th
eir
in
d
i
v
id
u
al
n
e
ed
s
.
Similar
r
esear
ch
r
eg
ar
d
in
g
v
i
r
tu
al
ex
h
ib
itio
n
s
h
as
b
ee
n
ca
r
r
ied
o
u
t
p
r
e
v
io
u
s
ly
b
y
a
r
esear
ch
p
ap
er
titl
ed
"E
v
alu
atio
n
o
f
v
ir
t
u
al
t
o
u
r
in
an
o
n
lin
e
m
u
s
eu
m
:
ex
h
ib
i
tio
n
o
f
ar
ch
itectu
r
e
o
f
th
e
f
o
r
b
i
d
d
en
cit
y
"
[
8
]
.
I
n
it,
a
v
ir
tu
al
to
u
r
o
f
an
o
n
lin
e
m
u
s
eu
m
ex
h
ib
itio
n
was
co
n
s
tr
u
cted
wh
er
e
u
s
er
s
ca
n
m
o
v
e
to
p
r
e
-
d
eter
m
in
e
d
lo
ca
tio
n
s
u
s
in
g
m
o
v
e
m
en
t
b
u
t
to
n
s
.
User
ev
alu
atio
n
d
o
n
e
in
th
is
r
esear
ch
f
o
u
n
d
th
at
alth
o
u
g
h
th
e
a
p
p
licatio
n
was
ab
le
to
cr
ea
te
a
g
o
o
d
s
en
s
e
o
f
r
ea
lity
,
th
e
in
ter
ac
tiv
ity
a
n
d
m
eth
o
d
s
o
f
n
av
ig
atio
n
in
t
h
e
ap
p
licatio
n
wer
e
f
o
u
n
d
to
b
e
lack
in
g
.
An
o
th
er
r
esear
ch
p
a
p
er
titl
ed
“E
f
f
ica
cy
o
f
v
ir
tu
al
r
ea
lity
in
p
ai
n
tin
g
ar
t
e
x
h
ib
itio
n
s
ap
p
r
ec
iati
o
n
”
cr
e
ated
a
v
ir
tu
a
l
ar
t
g
aller
y
u
s
in
g
v
ir
tu
al
r
ea
li
ty
tech
n
o
lo
g
y
wh
ich
was
th
en
also
ev
alu
ated
b
y
u
s
er
test
in
g
[
9
]
.
T
h
is
r
esear
ch
f
o
u
n
d
th
at
th
e
u
s
e
o
f
v
ir
tu
al
r
ea
lity
ca
n
b
e
s
u
itab
le
f
o
r
cr
ea
tin
g
v
ir
t
u
al
ar
t
ex
h
ib
itio
n
s
.
On
e
m
o
r
e
r
esear
c
h
p
ap
er
titl
ed
“Vir
t
u
al
r
ea
lity
ex
h
ib
itio
n
p
latf
o
r
m
”
cr
ea
ted
v
ir
tu
al
en
v
ir
o
n
m
e
n
ts
to
r
ep
r
esen
t a
v
ir
tu
al
ex
h
ib
itio
n
wh
ich
was d
o
n
e
with
th
e
im
p
lem
en
tatio
n
o
f
v
ir
tu
al
r
ea
lity
[
1
0
]
.
Ho
wev
er
,
th
e
r
esear
c
h
p
ap
e
r
s
p
r
ev
io
u
s
ly
m
en
tio
n
e
d
ar
e
la
ck
in
g
in
s
o
m
e
ar
ea
s
.
T
h
e
f
ir
s
t
r
esear
ch
p
ap
er
d
id
n
o
t
im
p
lem
en
t
v
ir
t
u
al
r
ea
lity
tech
n
o
lo
g
ies
in
its
v
ir
tu
al
ex
h
ib
itio
n
.
T
h
er
e
is
also
a
d
if
f
er
en
ce
in
th
e
ty
p
e
o
f
ex
h
ib
itio
n
s
b
ein
g
m
a
d
e.
T
h
e
f
ir
s
t
r
esear
ch
p
ap
er
cr
ea
ted
a
v
ir
tu
al
m
u
s
eu
m
to
u
r
wh
ile
th
e
s
ec
o
n
d
cr
ea
ted
a
v
ir
tu
al
ar
t g
aller
y
.
T
h
ese
a
r
e
d
if
f
er
en
t f
r
o
m
th
e
ty
p
e
o
f
ex
h
ib
itio
n
th
at
th
is
r
esear
ch
p
ap
er
wo
u
ld
lik
e
to
ex
p
lo
r
e,
n
am
ely
th
e
o
n
es
i
n
wh
ich
co
m
p
a
n
ies
ca
n
m
ar
k
et
th
eir
p
r
o
d
u
cts
an
d
s
er
v
ices.
T
h
e
t
h
ir
d
r
esear
ch
p
ap
er
s
u
cc
ess
f
u
lly
cr
ea
ted
th
is
ty
p
e
o
f
ex
h
ib
itio
n
.
Ho
wev
er
,
it d
id
n
o
t c
o
n
d
u
ct
an
y
u
s
er
test
in
g
an
d
ev
alu
atio
n
to
s
ee
th
e
ef
f
icac
y
a
n
d
lev
els o
f
u
s
er
s
atis
f
ac
tio
n
o
f
th
e
a
p
p
li
ca
tio
n
.
As
s
u
ch
,
th
is
r
esear
ch
aim
s
to
d
esig
n
an
d
b
u
ild
a
v
ir
tu
al
e
x
h
i
b
itio
n
s
y
s
tem
wh
ich
u
s
es
v
ir
tu
al
r
ea
lity
tech
n
o
lo
g
y
.
T
h
is
r
esear
ch
also
aim
s
to
m
ea
s
u
r
e
th
e
lev
el
o
f
u
s
er
s
atis
f
ac
tio
n
to
war
d
s
th
e
v
ir
tu
al
ex
h
ib
itio
n
ap
p
licatio
n
.
T
h
is
p
ap
er
will
f
ir
s
t
d
is
cu
s
s
a
liter
atu
r
e
r
ev
ie
w
r
eg
ar
d
in
g
to
p
ics
r
elate
d
to
th
e
r
esear
ch
.
T
h
e
m
eth
o
d
o
l
o
g
y
o
f
th
e
r
esear
ch
a
n
d
h
o
w
it
was
ca
r
r
ied
o
u
t
will
th
en
b
e
laid
o
u
t.
T
h
e
r
esu
lts
an
d
f
in
d
i
n
g
s
o
f
th
is
r
esear
ch
will b
e
d
is
cu
s
s
ed
n
ex
t f
o
llo
wed
b
y
co
n
cl
u
s
io
n
s
th
at
ca
n
b
e
tak
e
n
f
r
o
m
th
is
r
esear
c
h
.
2.
L
I
T
E
R
AT
U
RE
R
E
VI
E
W
2
.
1
.
Virt
ua
l
e
x
hib
it
io
ns
Vir
tu
al
ex
h
ib
itio
n
s
ar
e
o
f
ten
r
ef
er
r
ed
to
as
d
ig
ital
ex
h
ib
itio
n
s
,
o
n
lin
e
ex
h
ib
itio
n
s
,
o
n
lin
e
g
aller
ies,
ex
h
ib
itio
n
s
in
cy
b
er
s
p
ac
e
.
B
y
u
s
in
g
v
ir
tu
al
e
x
h
ib
itio
n
s
,
ex
h
ib
ito
r
s
ca
n
d
ev
el
o
p
th
e
m
at
er
ial
p
r
esen
ted
in
a
b
r
o
ad
e
r
an
d
m
o
r
e
last
in
g
m
a
n
n
er
to
attr
ac
t
th
e
in
ter
est
o
f
ex
h
ib
itio
n
v
is
ito
r
s
.
I
n
a
d
d
itio
n
,
th
e
u
s
e
o
f
v
ir
tu
al
ex
h
ib
itio
n
s
ca
n
s
av
e
p
r
o
d
u
ctio
n
co
s
ts
,
s
u
ch
as
s
av
in
g
o
n
in
s
u
r
an
ce
,
s
h
ip
p
i
n
g
an
d
in
s
tallatio
n
co
s
ts
[
1
1
]
.
An
d
,
v
ir
tu
al
ex
h
i
b
itio
n
s
ca
n
r
ea
ch
m
o
r
e
p
e
o
p
le
th
a
n
co
n
v
en
tio
n
a
l
ex
h
ib
iti
o
n
s
.
T
h
is
is
b
ec
au
s
e
ev
er
y
o
n
e
ca
n
ac
ce
s
s
t
h
e
i
n
f
o
r
m
a
t
i
o
n
t
h
e
y
n
e
e
d
,
a
s
l
o
n
g
a
s
t
h
e
y
h
a
v
e
a
c
o
m
p
u
t
e
r
o
r
a
n
o
t
h
e
r
d
e
v
i
c
e
.
V
i
r
t
u
a
l
e
x
h
i
b
i
t
i
o
n
s
a
r
e
a
l
s
o
n
o
t
l
i
m
i
t
e
d
b
y
e
x
h
i
b
i
t
i
o
n
o
p
e
n
i
n
g
o
r
c
l
o
s
i
n
g
t
i
m
e
s
a
n
d
c
a
n
b
e
a
v
a
i
l
a
b
l
e
2
4
h
o
u
r
s
u
n
l
i
k
e
c
o
n
v
e
n
t
i
o
n
a
l
e
x
h
i
b
i
t
i
o
n
s
[
1
2
]
.
I
n
th
e
cu
r
r
e
n
t
er
a,
co
n
v
e
n
tio
n
al
ex
h
ib
itio
n
s
th
at
ar
e
u
s
u
ally
h
eld
b
y
m
u
s
eu
m
s
,
lib
r
ar
ies
an
d
o
th
er
cu
ltu
r
al
o
r
g
an
izatio
n
s
h
av
e
n
o
w
b
eg
u
n
to
s
witch
to
v
ir
t
u
al
ex
h
ib
itio
n
s
.
T
h
is
is
b
ec
a
u
s
e
th
er
e
ar
e
m
an
y
b
en
ef
its
th
at
ca
n
b
e
o
b
tain
e
d
,
s
u
ch
as
c
o
n
v
e
n
ien
ce
a
n
d
c
o
s
t
s
av
in
g
s
.
Vir
tu
al
e
x
h
ib
itio
n
s
ca
n
also
b
e
ca
r
r
ie
d
o
u
t
v
ia
o
n
lin
e
v
i
d
eo
,
s
tr
ea
m
in
g
,
s
o
cial
m
ed
ia,
o
r
v
ia
o
n
lin
e
ch
at.
E
ac
h
v
ir
tu
al
ex
h
ib
itio
n
m
eth
o
d
h
as
its
o
wn
ad
v
an
tag
es a
n
d
d
is
ad
v
a
n
tag
es
[
1
3
]
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
d
o
n
esian
J
E
lec
E
n
g
&
C
o
m
p
Sci
I
SS
N:
2
5
0
2
-
4
7
52
V
ir
tu
a
l e
xh
ib
itio
n
s
ystems
u
s
i
n
g
virt
u
a
l rea
lity te
ch
n
o
lo
g
y
(
P
.
M.
Win
a
r
n
o
)
369
2
.
2
.
Virt
ua
l
re
a
lity
Vir
tu
al
r
ea
lity
is
a
te
ch
n
o
lo
g
y
th
at
im
p
lem
en
ts
a
v
ir
tu
al
3
D
en
v
ir
o
n
m
en
t
th
at
u
s
er
s
ca
n
n
a
v
ig
ate
an
d
in
ter
ac
t
with
[
1
4
]
.
T
h
e
n
atu
r
e
o
f
v
i
r
tu
al
r
ea
lity
m
a
k
es
it
d
if
f
er
en
t
co
m
p
ar
ed
to
o
t
h
er
f
o
r
m
s
o
f
d
ig
ital
m
e
d
ia.
User
s
ar
e
m
o
r
e
in
v
o
lv
ed
in
th
e
v
ir
tu
al
r
ea
lity
ex
p
er
ie
n
ce
a
n
d
ca
n
i
n
ter
ac
t
with
in
f
o
r
m
atio
n
m
o
r
e
n
atu
r
ally
in
th
e
v
ir
tu
al
wo
r
ld
[
7
]
.
T
h
is
is
b
ec
au
s
e
v
ir
tu
al
r
ea
lity
ca
n
p
r
o
v
id
e
an
ex
p
e
r
ien
ce
t
h
at
f
ee
ls
m
o
r
e
r
ea
l
[
1
5
]
.
Sev
er
al
d
if
f
er
e
n
t
ty
p
es
o
f
h
a
r
d
war
e
ar
e
r
eq
u
ir
e
d
to
b
e
ab
le
to
u
s
e
v
ir
t
u
al
r
ea
lity
.
T
h
is
in
clu
d
es
s
ter
eo
s
co
p
ic
d
is
p
lay
s
,
in
p
u
t d
e
v
ices,
m
o
tio
n
tr
ac
k
in
g
h
ar
d
war
e,
an
d
d
esk
to
p
/m
o
b
ile
p
latf
o
r
m
s
[
1
6
]
.
Vir
tu
al
r
ea
lity
is
o
f
ten
u
s
e
d
b
y
d
ev
elo
p
er
s
in
v
ar
io
u
s
f
ield
s
s
u
ch
as
ed
u
ca
tio
n
,
h
ea
lth
an
d
en
ter
tain
m
en
t
[
1
7
]
.
T
h
e
ad
o
p
tio
n
o
f
v
ir
tu
al
r
ea
lity
tech
n
o
lo
g
y
o
cc
u
r
s
b
e
ca
u
s
e
o
f
a
n
u
m
b
er
o
f
b
en
ef
its
o
b
tain
ed
f
r
o
m
its
u
s
e.
Fo
r
ex
am
p
le,
th
e
u
s
e
o
f
v
ir
tu
al
r
ea
lity
ca
n
h
av
e
a
p
o
s
itiv
e
im
p
ac
t
o
n
s
tu
d
en
ts
'
ab
il
ity
to
ab
s
o
r
b
lear
n
in
g
m
ater
ials
[
1
8
]
.
T
h
e
m
ain
a
d
v
an
tag
e
th
at
v
ir
t
u
al
r
ea
lity
h
as
is
th
e
f
r
ee
d
o
m
i
t
g
iv
es
u
s
er
s
in
th
e
way
th
ey
in
ter
ac
t
a
n
d
n
a
v
ig
ate
th
eir
v
ir
tu
al
en
v
ir
o
n
m
en
t.
T
h
is
h
elp
s
cr
ea
te
a
m
o
r
e
r
e
alis
tic
an
d
n
atu
r
al
ex
p
er
ien
ce
f
o
r
u
s
er
s
[
1
9
]
.
2
.
3
.
No
n
-
pla
y
er
cha
ra
ct
er
A
n
o
n
-
p
lay
er
c
h
ar
ac
ter
is
an
in
ter
ac
tiv
e
ag
en
t
th
at
is
n
o
t
c
o
n
tr
o
lled
b
y
th
e
u
s
er
.
I
n
s
tead
,
th
e
y
ar
e
co
n
tr
o
lled
b
y
th
e
AI
s
y
s
tem
in
th
e
a
p
p
licatio
n
o
r
s
y
s
tem
wh
er
e
th
ey
ar
e
im
p
lem
e
n
ted
.
T
h
e
b
eh
a
v
io
r
a
n
d
ac
tio
n
s
o
f
a
n
o
n
-
p
lay
er
ch
ar
ac
ter
ca
n
b
e
d
eter
m
in
e
d
r
ig
i
d
ly
o
r
cr
ea
ted
d
y
n
am
ically
as
th
e
ap
p
licatio
n
p
r
o
g
r
ess
es
b
ased
o
n
th
e
d
esig
n
an
d
alg
o
r
ith
m
s
u
s
ed
[
2
0
]
.
T
h
er
e
ar
e
s
ev
er
al
f
u
n
ctio
n
s
th
at
ca
n
b
e
f
u
lf
illed
u
s
in
g
n
o
n
-
p
lay
e
r
ch
ar
ac
ter
s
.
T
h
ey
ca
n
b
e
u
s
ed
to
teac
h
u
s
er
s
ab
o
u
t
f
ea
tu
r
es
o
r
m
ec
h
a
n
ics
in
a
g
am
e
o
r
ap
p
licatio
n
.
T
h
e
y
ca
n
ac
t
as
allies
wh
o
ca
n
h
elp
th
e
u
s
er
o
r
e
n
em
ies
wh
o
will
f
ig
h
t
th
e
u
s
er
.
T
h
ey
ca
n
also
b
e
n
eu
tr
al
ch
ar
ac
te
r
s
in
v
ir
tu
al
e
n
v
ir
o
n
m
e
n
ts
th
at
ca
n
h
elp
co
n
tr
ib
u
te
to
atm
o
s
p
h
e
r
e
an
d
r
ea
lis
m
[
2
1
]
.
On
e
p
o
p
u
la
r
way
th
at
is
o
f
ten
u
s
ed
to
co
n
t
r
o
l
n
o
n
-
p
l
ay
er
ch
ar
ac
ter
s
is
to
u
s
e
f
in
ite
s
tate
m
ac
h
in
es
[
2
2
]
.
I
n
a
f
i
n
ite
s
tate
m
ac
h
in
e,
n
o
n
-
p
lay
e
r
c
h
ar
a
cter
s
will
h
av
e
s
ev
er
al
p
r
e
d
et
er
m
in
ed
ac
tio
n
s
o
r
b
eh
av
io
r
s
th
at
ar
e
r
ep
r
esen
te
d
as
a
s
tate.
T
h
e
n
o
n
-
p
lay
e
r
ch
ar
ac
ter
will
th
en
tr
an
s
itio
n
f
r
o
m
o
n
e
s
tate
to
an
o
th
er
wh
en
an
i
n
p
u
t
is
r
ec
e
iv
ed
o
r
a
co
n
d
itio
n
is
m
et.
An
o
th
er
way
to
im
p
lem
en
t
n
o
n
-
pl
ay
er
c
h
ar
ac
ter
s
is
to
u
s
e
b
eh
av
io
r
tr
ee
s
.
A
b
eh
a
v
io
r
tr
ee
co
n
s
is
ts
o
f
n
o
d
es
th
at
ar
e
co
n
n
ec
ted
in
o
n
e
d
ir
ec
tio
n
to
ea
ch
o
t
h
er
.
B
eh
av
io
r
tr
ee
s
s
tar
t
th
eir
ex
e
cu
tio
n
f
r
o
m
th
e
r
o
o
t
n
o
d
e
w
h
ich
ac
ts
as
th
e
f
ir
s
t
n
o
d
e.
Af
ter
th
at
th
er
e
ar
e
s
ev
er
al
d
if
f
er
e
n
t
n
o
d
e
s
th
at
c
an
b
e
u
s
ed
to
m
o
d
el
th
e
d
esir
ed
b
eh
a
v
io
r
s
u
ch
as
f
allb
ac
k
,
s
eq
u
en
ce
,
p
ar
allel,
d
ec
o
r
ato
r
,
ac
tio
n
,
a
n
d
c
o
n
d
itio
n
n
o
d
es
[
2
3
]
.
2
.
4
.
P
a
t
hfindin
g
Path
f
in
d
in
g
is
th
e
p
r
o
ce
s
s
o
f
f
in
d
in
g
th
e
s
h
o
r
test
r
o
u
te
b
etw
ee
n
two
p
o
in
ts
wh
ile
av
o
id
in
g
o
b
s
tacle
s
o
r
o
b
s
tr
u
ctio
n
s
[
2
4
]
.
Path
f
i
n
d
i
n
g
is
o
f
ten
u
s
ed
in
g
am
e
d
ev
e
lo
p
m
en
t,
s
u
c
h
as
to
m
o
v
e
c
h
ar
ac
ter
s
.
Path
f
in
d
in
g
is
also
u
s
ed
in
o
t
h
er
f
ield
s
s
u
ch
as
a
u
to
n
o
m
o
u
s
v
eh
icle
n
av
ig
atio
n
,
r
o
b
o
tics
,
an
d
lo
g
is
tics
.
T
h
e
g
o
al
o
f
a
p
ath
f
in
d
in
g
alg
o
r
ith
m
is
to
f
i
n
d
th
e
o
p
tim
al
p
ath
b
y
m
i
n
im
izin
g
cr
iter
ia
s
u
ch
as
d
is
tan
ce
o
r
tim
e.
Ho
wev
er
,
m
o
r
e
r
eso
u
r
ce
s
ar
e
n
ee
d
e
d
to
m
ax
im
ize
th
e
q
u
ality
o
f
th
e
d
is
co
v
er
ed
p
ath
s
.
B
ec
au
s
e
o
f
t
h
is
,
th
er
e
ar
e
m
an
y
p
ath
f
in
d
in
g
alg
o
r
ith
m
s
th
at
h
av
e
b
ee
n
cr
ea
ted
s
u
c
h
as
th
e
Djik
s
tr
a
alg
o
r
ith
m
o
r
A*
wh
ich
h
av
e
th
eir
o
w
n
b
alan
ce
b
etwe
en
p
er
f
o
r
m
an
ce
an
d
q
u
ality
o
f
r
esu
lts
[
2
5
]
.
I
n
th
e
co
n
tex
t
o
f
a
g
am
e
,
p
ath
f
in
d
in
g
is
u
s
ed
to
c
o
n
tr
o
l
ch
a
r
ac
ter
s
,
b
o
th
p
lay
e
r
a
n
d
n
o
n
-
p
l
ay
er
,
a
n
d
o
th
er
elem
e
n
ts
[
2
6
]
.
W
ith
p
at
h
f
in
d
in
g
,
a
g
o
o
d
r
o
u
te
ca
n
b
e
ca
lcu
lated
s
o
t
h
at
th
e
c
h
ar
ac
t
er
ca
n
t
r
av
er
s
e
th
e
v
ir
tu
al
en
v
ir
o
n
m
en
t
r
ea
lis
tically
.
T
h
e
alg
o
r
ith
m
th
at
is
o
f
ten
u
s
ed
in
g
am
e
d
ev
el
o
p
m
en
t
is
th
e
A*
alg
o
r
ith
m
.
T
h
is
is
b
e
ca
u
s
e
th
e
A*
alg
o
r
ith
m
h
as
a
g
o
o
d
b
alan
ce
b
etwe
en
o
p
tim
ality
an
d
ef
f
icien
c
y
wh
ich
m
ak
es
it
ab
le
to
h
a
n
d
le
lar
g
e
a
n
d
d
y
n
am
ic
v
ir
tu
al
en
v
ir
o
n
m
en
ts
[
2
7
]
.
Fo
r
ex
am
p
le,
th
e
A*
alg
o
r
ith
m
is
th
e
alg
o
r
ith
m
u
s
ed
b
y
th
e
Un
ity
g
am
e
e
n
g
in
e
f
o
r
t
h
eir
AI
n
av
i
g
atio
n
s
y
s
t
em
.
3.
M
E
T
H
O
D
T
h
i
s
r
e
s
e
a
r
c
h
i
n
v
o
l
v
e
d
t
h
e
c
r
e
a
t
i
o
n
o
f
a
v
i
r
t
u
a
l
e
x
h
i
b
i
t
i
o
n
a
p
p
l
i
c
a
t
i
o
n
u
s
i
n
g
v
i
r
t
u
a
l
r
e
a
l
i
t
y
t
e
c
h
n
o
l
o
g
i
e
s
.
T
h
e
f
i
r
s
t
s
t
e
p
i
n
t
h
e
d
e
v
e
l
o
p
m
e
n
t
o
f
t
h
i
s
a
p
p
l
i
c
a
t
i
o
n
w
a
s
t
h
e
c
a
r
r
y
i
n
g
o
u
t
o
f
a
l
i
t
e
r
a
t
u
r
e
s
t
u
d
y
t
o
f
i
n
d
i
n
f
o
r
m
a
t
i
o
n
o
n
t
o
p
i
c
s
r
e
l
e
v
a
n
t
t
o
t
h
e
r
e
s
e
a
r
c
h
.
T
h
e
t
o
p
i
c
s
e
x
p
l
o
r
e
d
i
n
t
h
e
l
i
t
e
r
a
t
u
r
e
s
t
u
d
y
w
e
r
e
v
i
r
t
u
a
l
e
x
h
i
b
i
t
i
o
n
s
,
v
i
r
t
u
a
l
r
e
a
l
i
t
y
,
non
-
p
l
a
y
e
r
c
h
a
r
a
c
t
e
r
s
a
n
d
p
a
t
h
f
i
n
d
i
n
g
.
T
h
e
i
n
f
o
r
m
a
t
i
o
n
o
b
t
a
i
n
e
d
w
a
s
t
h
e
n
u
s
e
d
t
o
h
e
l
p
d
i
r
e
c
t
t
h
e
r
e
s
e
a
r
c
h
.
T
h
e
ap
p
licatio
n
was
t
h
en
d
esig
n
ed
th
r
o
u
g
h
th
e
u
s
e
o
f
f
lo
w
ch
ar
ts
.
Flo
wch
ar
ts
wer
e
m
ain
ly
u
s
ed
to
d
esig
n
h
o
w
th
e
a
p
p
licatio
n
an
d
its
f
ea
tu
r
es
will
f
u
n
ctio
n
,
as
well
as
th
e
way
s
u
s
er
s
will
in
ter
ac
t
with
th
em
.
Fiv
e
f
lo
wch
ar
ts
wer
e
m
ad
e
t
o
h
elp
d
esig
n
th
e
ap
p
licatio
n
.
T
h
ese
ar
e
th
e
m
ain
ap
p
licati
o
n
f
lo
wc
h
ar
t,
m
ai
n
g
ate
f
lo
wch
ar
t,
c
h
o
o
s
e
ca
teg
o
r
y
f
lo
wch
ar
t,
ca
r
s
ea
r
ch
f
lo
wch
ar
t a
n
d
th
e
n
o
n
-
p
lay
er
ch
ar
ac
t
er
f
lo
wch
ar
t.
T
h
e
m
ain
ap
p
licatio
n
f
l
o
wch
a
r
t
ex
p
lain
s
t
h
e
f
l
o
w
o
f
th
e
ap
p
licatio
n
an
d
h
o
w
th
e
u
s
er
will
u
s
e
th
e
ap
p
licatio
n
.
I
t
d
etails
wh
ich
f
e
atu
r
es
o
f
th
e
a
p
p
licatio
n
th
at
t
h
e
u
s
er
ca
n
i
n
ter
ac
t
with
an
d
i
n
wh
at
o
r
d
e
r
.
T
h
is
in
clu
d
es
th
e
m
ain
g
ate,
ch
o
o
s
e
ca
teg
o
r
y
a
n
d
ca
r
s
ea
r
ch
f
ea
tu
r
es.
T
h
e
m
ain
ap
p
licatio
n
f
lo
wch
ar
t
ca
n
b
e
s
ee
n
in
F
ig
u
r
e
1
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
5
0
2
-
4
7
52
In
d
o
n
esian
J
E
lec
E
n
g
&
C
o
m
p
Sci
,
Vo
l.
3
8
,
No
.
1
,
Ap
r
il
20
2
5
:
3
6
7
-
3
8
0
370
Fig
u
r
e
1
.
Ma
in
a
p
p
licatio
n
f
lo
wch
ar
t
T
h
e
m
ain
g
ate
f
l
o
wch
ar
t
ex
p
lain
s
wh
at
th
e
u
s
er
ca
n
d
o
in
t
h
e
m
ain
g
ate
s
ec
tio
n
o
f
th
e
a
p
p
licatio
n
.
T
h
e
m
ain
p
u
r
p
o
s
e
o
f
th
e
m
a
in
g
ate
is
f
o
r
u
s
er
s
to
ch
o
o
s
e
wh
ich
e
x
h
ib
itio
n
th
ey
wan
t
to
v
is
it.
On
ce
a
n
ex
h
ib
itio
n
is
c
h
o
s
en
,
th
e
ap
p
li
ca
tio
n
will
th
en
c
h
ec
k
i
ts
av
ai
lab
ilit
y
to
s
ee
if
it
ca
n
b
e
v
is
ited
o
r
n
o
t.
An
o
th
e
r
f
ea
tu
r
e
o
f
th
e
m
ain
g
ate
is
th
e
cr
ed
its
s
ec
tio
n
.
T
h
is
i
s
wh
er
e
u
s
er
s
ca
n
s
ee
a
lis
t
o
f
all
th
e
a
s
s
ets
th
at
wer
e
u
s
ed
in
th
e
m
ak
in
g
o
f
th
e
ap
p
licatio
n
.
T
h
e
m
ai
n
g
ate
f
l
o
wch
ar
t c
a
n
b
e
s
ee
n
in
F
ig
u
r
e
2.
Fig
u
r
e
2
.
Ma
in
g
ate
f
lo
wch
a
r
t
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
d
o
n
esian
J
E
lec
E
n
g
&
C
o
m
p
Sci
I
SS
N:
2
5
0
2
-
4
7
52
V
ir
tu
a
l e
xh
ib
itio
n
s
ystems
u
s
i
n
g
virt
u
a
l rea
lity te
ch
n
o
lo
g
y
(
P
.
M.
Win
a
r
n
o
)
371
T
h
e
ch
o
o
s
e
ca
teg
o
r
y
f
lo
wch
a
r
t
was
m
ad
e
f
o
r
th
e
ca
teg
o
r
y
s
elec
tio
n
f
ea
tu
r
e.
T
h
is
is
wh
er
e
u
s
er
s
ca
n
ch
an
g
e
th
e
p
r
o
d
u
cts
b
ein
g
d
is
p
lay
ed
in
th
e
e
x
h
ib
itio
n
h
all.
E
ac
h
ca
teg
o
r
y
,
wh
ich
in
t
h
is
ca
s
e
ar
e
co
u
n
tr
ies,
will
h
av
e
a
n
u
m
b
e
r
o
f
p
r
o
d
u
c
ts
ass
o
ciate
d
with
th
em
.
W
h
en
a
ca
teg
o
r
y
is
s
elec
ted
,
th
e
e
x
h
ib
itio
n
h
all
will
d
is
p
lay
its
p
r
o
d
u
cts
o
n
th
e
d
is
p
lay
s
tan
d
s
.
T
h
e
p
r
o
d
u
cts
in
a
ca
teg
o
r
y
will
b
e
s
p
lit
in
to
d
if
f
er
en
t
h
alls
d
ep
en
d
i
n
g
o
n
th
e
n
u
m
b
er
o
f
d
is
p
lay
s
tan
d
s
in
th
e
ex
h
ib
itio
n
.
Fo
r
ex
am
p
le,
a
ca
teg
o
r
y
co
n
tain
in
g
1
3
p
r
o
d
u
cts
will
b
e
s
p
lit
in
to
a
f
ir
s
t
h
all
co
n
tain
in
g
th
e
f
ir
s
t
8
p
r
o
d
u
ct
s
an
d
a
s
ec
o
n
d
h
all
c
o
n
tain
in
g
th
e
r
e
m
ain
in
g
5
p
r
o
d
u
cts.
User
s
ca
n
th
e
n
p
r
e
s
s
a
p
r
ev
io
u
s
b
u
tto
n
a
n
d
a
n
ex
t
b
u
tto
n
to
alter
n
ate
b
et
wee
n
th
e
h
alls
in
a
ca
teg
o
r
y
.
T
h
e
ch
o
o
s
e
ca
teg
o
r
y
f
lo
wch
ar
t c
an
b
e
s
ee
n
in
F
ig
u
r
e
3
.
Fig
u
r
e
3
.
C
h
o
o
s
e
ca
teg
o
r
y
f
lo
wch
ar
t
T
h
e
ca
r
s
ea
r
ch
f
lo
wch
a
r
t
was
u
s
ed
to
m
ap
o
u
t
h
o
w
p
lay
e
r
s
ca
n
s
ea
r
ch
f
o
r
a
s
p
ec
if
ic
p
r
o
d
u
ct
th
at
th
ey
m
ay
b
e
lo
o
k
in
g
f
o
r
.
Use
r
s
ca
n
s
ea
r
ch
f
o
r
a
ce
r
tain
p
r
o
d
u
ct
b
y
u
s
in
g
two
d
if
f
e
r
en
t
d
r
o
p
d
o
wn
lis
ts
.
T
h
e
f
ir
s
t
lis
t
is
u
s
ed
to
s
elec
t
th
e
b
r
an
d
t
h
at
th
e
p
r
o
d
u
ct
b
elo
n
g
s
to
.
C
h
o
o
s
in
g
a
b
r
an
d
f
r
o
m
th
i
s
lis
t
will
alter
th
e
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
5
0
2
-
4
7
52
In
d
o
n
esian
J
E
lec
E
n
g
&
C
o
m
p
Sci
,
Vo
l.
3
8
,
No
.
1
,
Ap
r
il
20
2
5
:
3
6
7
-
3
8
0
372
co
n
ten
ts
o
f
th
e
s
ec
o
n
d
d
r
o
p
d
o
wn
lis
t
to
all
th
e
p
r
o
d
u
cts b
elo
n
g
in
g
to
th
e
s
elec
ted
b
r
an
d
.
U
s
er
s
ca
n
th
en
s
elec
t
wh
ich
ev
er
p
r
o
d
u
ct
th
ey
wan
t
f
r
o
m
th
e
s
ec
o
n
d
d
r
o
p
d
o
w
n
to
v
iew
it.
T
h
e
ca
r
s
ea
r
ch
f
l
o
wc
h
ar
t
ca
n
b
e
s
ee
n
i
n
F
ig
u
r
e
4
.
Fig
u
r
e
4
.
C
ar
s
ea
r
ch
f
lo
wch
ar
t
T
h
e
n
o
n
-
p
lay
er
ch
ar
ac
ter
f
lo
w
ch
ar
t
was
m
ad
e
to
m
o
d
el
th
e
b
eh
av
io
r
o
f
n
o
n
-
p
lay
er
ch
a
r
ac
ter
s
in
th
e
ap
p
licatio
n
.
I
t
m
ain
ly
co
n
ce
r
n
s
th
e
wa
y
th
at
th
ey
n
av
ig
ate
ar
o
u
n
d
th
e
v
ir
tu
al
en
v
ir
o
n
m
en
t.
Pre
-
d
eter
m
in
e
d
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
d
o
n
esian
J
E
lec
E
n
g
&
C
o
m
p
Sci
I
SS
N:
2
5
0
2
-
4
7
52
V
ir
tu
a
l e
xh
ib
itio
n
s
ystems
u
s
i
n
g
virt
u
a
l rea
lity te
ch
n
o
lo
g
y
(
P
.
M.
Win
a
r
n
o
)
373
way
p
o
in
ts
ar
e
s
et
ar
o
u
n
d
th
e
v
ir
tu
al
ap
p
licatio
n
b
ef
o
r
eh
an
d
.
T
h
e
n
o
n
-
p
lay
er
ch
ar
ac
ter
ca
n
t
h
en
ch
o
o
s
e
o
n
e
o
f
th
ese
wa
y
p
o
in
ts
r
an
d
o
m
ly
a
n
d
s
tar
t w
alk
in
g
to
war
d
s
it.
T
h
e
d
is
tan
ce
b
etwe
en
th
e
n
o
n
-
p
la
y
er
ch
ar
ac
ter
an
d
its
d
esti
n
atio
n
will
co
n
s
tan
tly
b
e
ch
ec
k
ed
.
I
f
th
e
d
is
tan
ce
is
s
u
f
f
icien
tly
s
m
all
th
en
th
e
n
o
n
-
p
l
ay
er
ch
a
r
ac
ter
h
as
r
ea
ch
ed
its
d
esti
n
atio
n
an
d
will
th
en
ch
o
o
s
e
a
n
ew
o
n
e
r
an
d
o
m
ly
.
T
h
e
n
o
n
-
p
la
y
er
ch
ar
ac
t
er
f
lo
wch
ar
t
ca
n
b
e
s
ee
n
in
F
ig
u
r
e
5
.
Fig
u
r
e
5
.
No
n
-
p
lay
e
r
ch
ar
ac
ter
f
lo
wch
ar
t
Ap
p
licatio
n
d
ev
elo
p
m
en
t
was
later
ca
r
r
ied
o
u
t
u
s
in
g
th
e
u
n
ity
g
am
e
en
g
in
e.
Dev
elo
p
m
en
t
in
v
o
lv
es
im
p
lem
en
tin
g
th
e
d
esig
n
s
th
a
t
h
av
e
b
ee
n
m
ad
e.
Var
io
u
s
u
n
ity
p
ac
k
ag
es
wer
e
u
s
ed
in
th
e
m
ak
in
g
o
f
th
e
ap
p
licatio
n
.
T
h
e
Un
ity
XR
T
o
o
lk
it
p
ac
k
ag
e
was
u
s
ed
to
c
r
ea
te
th
e
m
o
v
em
en
t
s
y
s
tem
a
llo
win
g
p
lay
e
r
s
to
walk
,
tu
r
n
a
n
d
telep
o
r
t.
I
t
was
also
u
s
ed
to
cr
ea
te
th
e
in
ter
ac
tio
n
s
y
s
tem
wh
ich
allo
wed
p
lay
er
s
to
in
ter
ac
t
with
o
b
jects
an
d
UI
u
s
in
g
t
h
e
v
ir
tu
al
r
ea
lity
co
n
t
r
o
ller
s
.
Oth
er
p
ac
k
ag
es
s
u
ch
as
Pro
b
u
ild
e
r
an
d
T
er
r
ain
to
o
ls
wer
e
u
s
ed
to
cr
ea
te
th
e
v
ir
tu
al
en
v
ir
o
n
m
en
t o
f
th
e
ap
p
licatio
n
.
T
h
e
ap
p
licatio
n
th
at
was
d
ev
e
lo
p
ed
t
o
o
k
th
e
f
o
r
m
o
f
a
3
D
v
ir
tu
al
en
v
ir
o
n
m
en
t.
User
s
ca
n
n
a
v
ig
ate
th
is
v
ir
tu
al
s
p
ac
e
an
d
in
ter
ac
t
with
th
e
o
b
jects
with
in
it.
T
h
e
ap
p
licatio
n
r
eq
u
ir
ed
th
e
u
s
e
o
f
v
ir
tu
al
r
ea
lity
h
ar
d
war
e
in
o
r
d
er
to
b
e
u
s
ed
.
T
h
e
Ocu
lu
s
R
if
t
h
ea
d
s
et
an
d
c
o
n
tr
o
ller
s
wer
e
u
s
ed
f
o
r
d
ev
el
o
p
m
en
t
a
n
d
test
in
g
p
u
r
p
o
s
es
in
th
is
r
esear
ch
.
T
h
e
v
ir
tu
al
r
ea
lity
h
ea
d
s
et
was
u
s
ed
in
o
r
d
e
r
to
d
is
p
lay
th
e
ap
p
licatio
n
to
u
s
er
s
an
d
to
r
o
tate
th
e
i
n
-
g
am
e
f
ir
s
t
-
p
er
s
o
n
ca
m
er
a.
T
h
e
co
n
tr
o
ller
s
o
n
th
e
o
th
er
h
a
n
d
wer
e
u
s
ed
b
y
u
s
er
s
to
n
a
v
ig
ate
an
d
m
o
v
e
ar
o
u
n
d
in
th
e
v
ir
tu
a
l
en
v
ir
o
n
m
en
t o
f
th
e
ap
p
licatio
n
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
5
0
2
-
4
7
52
In
d
o
n
esian
J
E
lec
E
n
g
&
C
o
m
p
Sci
,
Vo
l.
3
8
,
No
.
1
,
Ap
r
il
20
2
5
:
3
6
7
-
3
8
0
374
E
v
alu
atio
n
was
ca
r
r
ied
o
u
t
b
y
h
av
in
g
u
s
er
s
tr
y
th
e
ap
p
licatio
n
d
ir
ec
tly
u
s
in
g
v
ir
tu
al
r
ea
lity
h
ar
d
war
e
s
u
ch
as
h
ea
d
s
ets
an
d
co
n
tr
o
ller
s
.
A
b
r
ief
ex
p
lan
atio
n
was
b
e
g
iv
en
r
eg
ar
d
in
g
th
e
ap
p
licati
o
n
an
d
h
o
w
to
u
s
e
th
e
h
ar
d
war
e
.
User
s
will
th
en
u
s
e
th
e
ap
p
licatio
n
an
d
tr
y
al
l
th
e
f
ea
tu
r
es
o
n
it.
Do
cu
m
en
t
atio
n
o
f
t
h
e
test
in
g
p
r
o
ce
s
s
ca
r
r
ied
o
u
t
b
y
u
s
er
s
ca
n
b
e
s
ee
n
in
F
ig
u
r
e
6
.
Af
te
r
u
s
er
s
h
av
e
f
in
is
h
ed
tr
y
in
g
th
e
ap
p
licatio
n
,
th
e
y
will
f
ill
o
u
t
a
q
u
esti
o
n
n
air
e
to
p
r
o
v
id
e
th
ei
r
lev
el
o
f
s
atis
f
ac
tio
n
with
th
e
ap
p
licatio
n
.
T
est
in
g
an
d
ev
al
u
atio
n
was
ca
r
r
ied
o
u
t
b
y
a
to
tal
o
f
1
8
u
n
iv
er
s
ity
s
tu
d
en
ts
.
T
h
is
n
u
m
b
er
is
s
u
f
f
icien
t
to
b
e
ab
le
t
o
f
in
d
at
least
9
0
%
o
f
th
e
p
r
o
b
lem
s
th
at
m
a
y
ar
is
e
an
d
t
o
f
in
d
p
r
o
b
lem
s
r
elate
d
t
o
th
e
d
esi
g
n
,
n
av
ig
atio
n
,
f
u
n
ct
io
n
an
d
p
u
r
p
o
s
e
o
f
th
e
ap
p
licatio
n
[
2
8
]
,
[
2
9
]
.
Fig
u
r
e
6
.
User
test
in
g
th
e
a
p
p
l
icatio
n
4.
RE
SU
L
T
S AN
D
D
I
SCU
SS
I
O
N
4
.
1
.
Dev
el
o
pm
ent
re
s
ults
T
h
is
r
esear
ch
h
as
s
u
cc
ee
d
ed
in
b
u
ild
in
g
a
v
ir
tu
al
e
x
h
ib
itio
n
s
y
s
tem
u
s
in
g
v
ir
tu
al
te
ch
n
o
lo
g
y
.
Ap
p
licatio
n
d
e
v
elo
p
m
e
n
t
was
ca
r
r
ied
o
u
t
u
s
in
g
th
e
U
n
ity
g
am
e
en
g
in
e
.
T
h
e
ap
p
licatio
n
cr
ea
ted
h
as
s
ev
er
al
m
ain
f
ea
tu
r
es,
n
am
ely
a
m
o
v
em
en
t
an
d
in
ter
ac
tio
n
s
y
s
tem
,
ex
h
ib
itio
n
f
ea
tu
r
es,
an
au
d
i
o
s
y
s
tem
,
an
d
n
o
n
-
p
lay
er
ch
a
r
ac
ter
s
.
T
h
e
m
o
v
e
m
en
t
an
d
in
ter
ac
tio
n
s
y
s
tem
is
h
o
w
u
s
er
s
ca
n
in
t
er
ac
t
with
th
e
v
ir
tu
al
wo
r
ld
th
at
h
as
b
ee
n
cr
ea
ted
in
th
e
ap
p
licatio
n
.
T
h
e
m
o
v
em
en
t sy
s
tem
in
th
e
ap
p
li
ca
tio
n
is
wh
at
allo
ws u
s
er
s
to
tr
av
er
s
e
th
e
v
ir
tu
al
en
v
ir
o
n
m
en
t.
Me
an
w
h
ile,
th
e
in
ter
ac
tio
n
s
y
s
tem
f
ac
ilit
ates
u
s
e
r
s
in
in
ter
ac
tin
g
,
in
f
lu
e
n
cin
g
an
d
o
b
tain
in
g
in
f
o
r
m
atio
n
f
r
o
m
th
e
a
p
p
licatio
n
.
B
ec
au
s
e
th
e
ap
p
licatio
n
is
b
u
ilt
b
ased
o
n
v
ir
tu
al
r
ea
lit
y
tech
n
o
l
o
g
y
,
u
s
er
s
will u
s
e
a
s
p
ec
ial
co
n
tr
o
ller
as th
e
m
ain
way
t
o
en
ter
in
p
u
t in
to
th
e
ap
p
licatio
n
.
T
h
er
e
ar
e
s
ev
er
al
d
if
f
er
e
n
t
m
eth
o
d
s
th
at
ca
n
b
e
u
s
ed
to
m
o
v
e
with
in
th
e
ap
p
licatio
n
.
T
h
e
lef
t
-
h
an
d
co
n
tr
o
ller
f
u
n
ctio
n
s
to
m
o
v
e
f
o
r
war
d
s
an
d
b
ac
k
war
d
s
.
T
o
r
o
tate
lef
t
an
d
r
i
g
h
t,
u
s
er
s
ca
n
u
s
e
th
e
r
ig
h
t
-
h
an
d
co
n
tr
o
ller
o
r
th
e
v
ir
tu
al
r
ea
lity
h
ea
d
s
et.
Ap
ar
t
f
r
o
m
th
at,
th
e
r
ig
ht
-
h
a
n
d
co
n
tr
o
ller
ca
n
also
b
e
u
s
ed
to
telep
o
r
t
wh
er
e
u
s
er
s
ca
n
ad
ju
s
t th
eir
p
o
s
itio
n
an
d
r
o
tatio
n
in
s
tan
tly
.
Fig
u
r
e
7
s
h
o
ws th
e
u
s
e
o
f
th
e
telep
o
r
tatio
n
s
y
s
tem
in
th
e
ap
p
licatio
n
.
Fig
u
r
e
7
.
T
h
e
telep
o
r
tatio
n
f
ea
tu
r
e
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
d
o
n
esian
J
E
lec
E
n
g
&
C
o
m
p
Sci
I
SS
N:
2
5
0
2
-
4
7
52
V
ir
tu
a
l e
xh
ib
itio
n
s
ystems
u
s
i
n
g
virt
u
a
l rea
lity te
ch
n
o
lo
g
y
(
P
.
M.
Win
a
r
n
o
)
375
T
h
er
e
ar
e
also
s
ev
er
al
way
s
in
w
h
ich
u
s
er
s
ca
n
in
te
r
ac
t
with
o
b
jects
in
th
e
ap
p
licatio
n
.
I
n
t
er
ac
tio
n
is
m
ain
ly
ca
r
r
ied
o
u
t
u
s
in
g
th
e
lef
t
an
d
r
ig
h
t
c
o
n
tr
o
ller
s
wh
ic
h
ac
t
as
th
e
u
s
er
'
s
h
an
d
s
.
T
h
e
d
esire
d
in
ter
ac
tio
n
with
an
o
b
ject
ca
n
b
e
d
o
n
e
d
ir
ec
tly
,
s
u
ch
as
h
o
l
d
in
g
th
e
o
b
ject
in
a
u
s
er
’
s
h
an
d
.
User
s
ca
n
also
u
s
e
a
r
a
y
co
m
in
g
o
u
t
o
f
th
eir
h
an
d
s
to
i
n
ter
ac
t
with
o
b
jects
an
d
th
e
U
I
.
T
h
is
ca
n
b
e
s
ee
n
in
Fig
u
r
e
8
.
I
n
ter
ac
tio
n
with
o
b
jects u
s
es th
e
g
r
ip
b
u
tto
n
o
n
th
e
co
n
tr
o
ller
wh
ile
in
ter
ac
tio
n
with
th
e
UI
u
s
es tr
ig
g
e
r
b
u
tt
o
n
.
Fig
u
r
e
8
.
I
n
ter
ac
tin
g
with
o
b
je
cts u
s
in
g
a
r
ay
T
h
e
ex
h
ib
itio
n
f
ea
tu
r
es
d
is
cu
s
s
ed
ar
e
f
ea
tu
r
es
th
at
ca
n
b
e
u
s
ed
b
y
u
s
er
s
in
v
ir
tu
al
e
x
h
ib
iti
o
n
s
o
n
th
e
ap
p
licatio
n
.
T
h
e
f
ea
tu
r
es
cr
ea
ted
ar
e
th
e
r
esu
lt
o
f
im
p
lem
e
n
tin
g
th
e
d
esig
n
s
p
r
o
d
u
ce
d
at
th
e
d
esig
n
s
tag
e.
T
h
ey
co
v
er
h
o
w
a
u
s
er
ca
n
u
s
e
th
e
ap
p
licatio
n
as
a
v
ir
tu
al
e
x
h
ib
itio
n
.
I
n
clu
d
ed
i
n
th
is
is
h
o
w
u
s
er
s
ca
n
s
elec
t
th
e
ex
h
ib
itio
n
th
ey
wan
t,
v
iew
th
e
d
esire
d
p
r
o
d
u
ct,
an
d
v
iew
in
f
o
r
m
atio
n
ab
o
u
t a
p
r
o
d
u
ct.
T
h
e
ex
h
ib
itio
n
s
elec
tio
n
f
ea
tu
r
e
is
a
way
f
o
r
u
s
er
s
to
s
elec
t
t
h
e
ex
h
ib
itio
n
s
th
ey
wan
t
to
v
is
it.
T
h
is
is
d
o
n
e
at
th
e
m
ain
g
ate
s
ec
tio
n
o
f
th
e
e
x
h
ib
itio
n
b
u
ild
in
g
.
T
h
e
s
elec
tio
n
is
m
ad
e
b
y
tak
in
g
an
o
b
ject
th
at
r
ep
r
esen
ts
an
e
x
h
ib
itio
n
an
d
p
lacin
g
it
o
n
th
e
s
elec
tio
n
tab
le
.
I
f
th
e
s
elec
ted
e
x
h
ib
itio
n
ca
n
b
e
v
is
ited
th
en
t
h
e
b
u
tto
n
n
e
x
t to
th
e
en
tr
a
n
ce
will
tu
r
n
g
r
ee
n
.
I
f
th
e
e
x
h
ib
itio
n
c
an
n
o
t b
e
v
is
ited
th
en
th
e
b
u
tto
n
will tu
r
n
r
ed
an
d
an
er
r
o
r
m
ess
ag
e
will
ap
p
ea
r
o
n
ce
th
e
b
u
tto
n
is
p
r
ess
ed
.
T
h
is
ca
n
b
e
s
ee
n
in
F
ig
u
r
e
9
.
On
ly
th
e
ca
r
ex
h
ib
itio
n
ca
n
b
e
v
is
ited
at
th
is
tim
e.
Fig
u
r
e
9
.
C
h
o
o
s
in
g
an
e
x
h
ib
it
i
o
n
th
at
is
n
o
t a
v
ailab
le
T
h
e
p
r
o
d
u
ct
s
elec
tio
n
f
ea
tu
r
e
is
h
o
w
u
s
er
s
ca
n
s
ea
r
ch
f
o
r
t
h
e
p
r
o
d
u
cts
t
h
ey
wan
t
at
t
h
e
ex
h
ib
itio
n
.
User
s
ca
n
d
o
th
is
b
y
ch
an
g
in
g
th
e
co
n
ten
ts
o
f
th
e
ex
h
ib
itio
n
s
p
ac
e.
T
h
e
p
r
o
d
u
cts
at
th
e
ex
h
ib
itio
n
ar
e
d
iv
id
ed
in
to
s
ev
er
al
ca
te
g
o
r
ies
th
at
u
s
er
s
ca
n
ch
o
o
s
e
f
r
o
m
.
E
ac
h
ca
teg
o
r
y
will
th
en
h
av
e
s
ev
er
al
r
o
o
m
s
th
at
ca
n
b
e
s
elec
ted
to
ch
an
g
e
th
e
co
n
te
n
ts
o
f
th
e
ex
h
ib
itio
n
s
p
ac
e.
I
n
th
e
ca
r
ex
h
ib
itio
n
,
t
h
e
ca
r
s
ar
e
d
iv
id
ed
b
ased
o
n
th
eir
co
u
n
tr
y
o
f
o
r
ig
in
.
Af
ter
s
elec
tin
g
a
ca
teg
o
r
y
,
u
s
e
r
s
ca
n
s
elec
t
th
e
r
o
o
m
o
r
h
all
th
ey
wan
t
to
v
iew.
W
ith
th
is
,
th
e
co
n
ten
ts
o
f
th
e
ex
h
ib
itio
n
r
o
o
m
will
ch
an
g
e
to
s
h
o
w
th
e
ca
r
s
in
th
e
s
elec
ted
h
all.
T
h
e
ca
teg
o
r
y
s
elec
tio
n
tab
le
ca
n
b
e
s
ee
n
in
F
ig
u
r
e
1
0
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
5
0
2
-
4
7
52
In
d
o
n
esian
J
E
lec
E
n
g
&
C
o
m
p
Sci
,
Vo
l.
3
8
,
No
.
1
,
Ap
r
il
20
2
5
:
3
6
7
-
3
8
0
376
Selectio
n
ca
n
also
b
e
d
o
n
e
in
d
iv
id
u
ally
with
th
e
p
r
o
d
u
c
t
s
ea
r
ch
f
ea
tu
r
e
wh
ich
ca
n
b
e
s
ee
n
in
Fig
u
r
e
1
1
.
W
ith
th
is
,
u
s
er
s
ca
n
s
ea
r
ch
f
o
r
p
r
o
d
u
cts
m
o
r
e
s
p
ec
if
ically
.
I
n
th
e
ca
r
ex
h
ib
itio
n
,
th
e
s
ea
r
ch
f
ea
tu
r
e
f
u
n
ctio
n
s
b
y
u
s
in
g
a
d
r
o
p
d
o
w
n
lis
t c
o
n
tain
in
g
all
ca
r
b
r
a
n
d
s
in
th
e
ap
p
licatio
n
.
User
s
ca
n
t
h
en
s
elec
t
a
d
esire
d
b
r
an
d
.
T
h
is
ac
tio
n
will a
d
d
all
p
r
o
d
u
cts f
r
o
m
th
at
b
r
an
d
to
th
e
s
ec
o
n
d
d
r
o
p
d
o
wn
lis
t.
User
s
ca
n
th
en
s
elec
t th
e
p
r
o
d
u
cts th
ey
wan
t f
r
o
m
th
e
s
ec
o
n
d
d
r
o
p
d
o
wn
lis
t to
m
a
k
e
t
h
em
ap
p
ea
r
.
Fig
u
r
e
1
0
.
C
ateg
o
r
y
s
elec
tio
n
tab
le
Fig
u
r
e
1
1
.
Pro
d
u
ct
s
ea
r
c
h
f
ea
t
u
r
e
T
h
en
th
er
e
is
th
e
f
ea
tu
r
e
in
th
e
ex
h
ib
itio
n
th
at
f
u
n
ctio
n
to
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