<s>
A	O
cutaway	B-Application
drawing	I-Application
,	O
also	O
called	O
a	O
cutaway	B-Application
diagram	I-Application
is	O
a	O
3D	O
graphics	O
,	O
drawing	B-Application
,	O
diagram	O
and	O
or	O
illustration	B-Application
,	O
in	O
which	O
surface	O
elements	O
of	O
a	O
three-dimensional	O
model	O
are	O
selectively	O
removed	O
,	O
to	O
make	O
internal	O
features	O
visible	O
,	O
but	O
without	O
sacrificing	O
the	O
outer	O
context	O
entirely	O
.	O
</s>
<s>
(	O
2003	O
)	O
"	O
the	O
purpose	O
of	O
a	O
cutaway	B-Application
drawing	I-Application
is	O
to	O
allow	O
the	O
viewer	O
to	O
have	O
a	O
look	O
into	O
an	O
otherwise	O
solid	O
opaque	O
object	O
.	O
</s>
<s>
Cutaway	B-Application
illustrations	I-Application
avoid	O
ambiguities	O
with	O
respect	O
to	O
spatial	O
ordering	O
,	O
provide	O
a	O
sharp	O
contrast	O
between	O
foreground	O
and	O
background	O
objects	O
,	O
and	O
facilitate	O
a	O
good	O
understanding	O
of	O
spatial	O
ordering	O
"	O
.	O
</s>
<s>
Though	O
cutaway	B-Application
drawing	I-Application
are	O
not	O
dimensioned	O
manufacturing	O
blueprints	B-Application
,	O
they	O
are	O
meticulously	O
drawn	O
by	O
a	O
handful	O
of	O
devoted	O
artists	O
who	O
either	O
had	O
access	O
to	O
manufacturing	O
details	O
or	O
deduced	O
them	O
by	O
observing	O
the	O
visible	O
evidence	O
of	O
the	O
hidden	O
skeleton	O
(	O
e.g.	O
</s>
<s>
The	O
technique	O
is	O
used	O
extensively	O
in	O
computer-aided	B-Application
design	I-Application
,	O
see	O
first	O
image	O
.	O
</s>
<s>
It	O
has	O
also	O
been	O
incorporated	O
into	O
the	O
user	B-Application
interface	I-Application
of	O
some	O
video	O
games	O
.	O
</s>
<s>
In	O
The	B-Application
Sims	I-Application
,	O
for	O
instance	O
,	O
users	O
can	O
select	O
through	O
a	O
control	O
panel	O
whether	O
to	O
view	O
the	O
house	O
they	O
are	O
building	O
with	O
no	O
walls	O
,	O
cutaway	B-Application
walls	O
,	O
or	O
full	O
walls	O
.	O
</s>
<s>
The	O
cutaway	B-Application
view	I-Application
and	O
the	O
exploded	B-Application
view	I-Application
were	O
minor	O
graphic	O
inventions	O
of	O
the	O
Renaissance	B-Application
that	O
also	O
clarified	O
pictorial	O
representation	O
.	O
</s>
<s>
This	O
cutaway	B-Application
view	I-Application
originates	O
in	O
the	O
early	O
fifteenth	O
century	O
notebooks	O
of	O
Marino	O
Taccola	O
(	O
1382	O
–	O
1453	O
)	O
.	O
</s>
<s>
In	O
the	O
16th	O
century	O
cutaway	B-Application
views	I-Application
in	O
definite	O
form	O
were	O
used	O
in	O
Georgius	O
Agricola	O
's	O
(	O
1494-1555	O
)	O
mining	O
book	O
De	O
Re	O
Metallica	O
to	O
illustrate	O
underground	O
operations	O
.	O
</s>
<s>
The	O
term	O
"	O
Cutaway	B-Application
drawing	I-Application
"	O
was	O
already	O
in	O
use	O
in	O
the	O
19th	O
century	O
but	O
,	O
became	O
popular	O
in	O
the	O
1930s	O
.	O
</s>
<s>
(	O
2003	O
)	O
,	O
"	O
can	O
seldom	O
be	O
formalized	O
in	O
a	O
simple	O
algorithm	O
,	O
But	O
the	O
properties	O
of	O
cutaway	B-Application
can	O
be	O
distinguish	O
in	O
two	O
classes	O
of	O
cutaways	B-Application
of	O
a	O
drawing	B-Application
"	O
:	O
</s>
<s>
cutout	O
:	O
illustrations	O
where	O
the	O
cutaway	B-Application
is	O
restricted	O
to	O
very	O
simple	O
and	O
regularly	O
shaped	O
of	O
often	O
only	O
a	O
small	O
number	O
of	O
planar	O
slices	O
into	O
the	O
outside	O
object	O
.	O
</s>
<s>
breakaway	O
:	O
a	O
cutaway	B-Application
realized	O
by	O
a	O
single	O
hole	O
in	O
the	O
outside	O
of	O
the	O
object	O
.	O
</s>
<s>
Some	O
more	O
examples	O
of	O
cutaway	B-Application
drawings	I-Application
.	O
</s>
