<s>
The	O
Schmidt	B-Application
net	I-Application
is	O
a	O
manual	O
drafting	O
method	O
for	O
the	O
Lambert	O
azimuthal	O
equal-area	O
projection	O
using	O
graph	O
paper	O
.	O
</s>
<s>
The	O
angle-distorting	O
property	O
can	O
be	O
seen	O
by	O
examining	O
the	O
grid	O
lines	O
;	O
most	O
of	O
them	O
do	O
not	O
intersect	O
at	O
right	O
angles	O
on	O
the	O
Schmidt	B-Application
net	I-Application
.	O
</s>
<s>
A	O
single	O
Schmidt	B-Application
net	I-Application
can	O
only	O
represent	O
one	O
hemisphere	O
of	O
the	O
earth	O
;	O
typically	O
a	O
pair	O
of	O
Schmidt	B-Application
nets	I-Application
is	O
used	O
to	O
represent	O
both	O
sides	O
of	O
the	O
globe	O
.	O
</s>
<s>
It	O
is	O
relatively	O
simple	O
to	O
re-plot	O
a	O
gridded	O
map	O
of	O
the	O
world	O
onto	O
a	O
Schmidt	B-Application
net	I-Application
if	O
the	O
azimuth	O
is	O
chosen	O
to	O
be	O
the	O
junction	O
of	O
the	O
equator	O
with	O
any	O
particular	O
meridian	O
from	O
the	O
world-map	O
'	O
s	O
grid	O
.	O
</s>
<s>
Each	O
grid	O
square	O
surrounding	O
this	O
chosen	O
longitude	O
is	O
simply	O
re-plotted	O
into	O
the	O
corresponding	O
distorted	O
grid-square	O
in	O
the	O
Schmidt	B-Application
net	I-Application
.	O
</s>
<s>
Points	O
of	O
latitude-longitude	O
can	O
be	O
plotted	O
relative	O
to	O
the	O
azimuth	O
's	O
longitude	O
,	O
interpolating	O
between	O
grid	O
lines	O
in	O
the	O
Schmidt	B-Application
net	I-Application
.	O
</s>
<s>
The	O
Schmidt	B-Application
net	I-Application
is	O
not	O
an	O
appropriate	O
grid	O
for	O
representing	O
the	O
Earth	O
's	O
northern	O
or	O
southern	O
hemisphere	O
(	O
because	O
the	O
lines	O
would	O
not	O
correspond	O
to	O
meridians	O
or	O
parallels	O
in	O
such	O
a	O
projection	O
)	O
.	O
</s>
<s>
The	O
Schmidt	B-Application
net	I-Application
's	O
horizontal	O
axis	O
can	O
then	O
be	O
used	O
as	O
a	O
scalar	O
measuring	O
device	O
to	O
convert	O
the	O
point	O
's	O
latitude	O
(	O
relative	O
to	O
the	O
pole	O
)	O
into	O
a	O
radial	O
distance	O
from	O
the	O
centre	O
of	O
the	O
circle	O
.	O
</s>
<s>
Alternatively	O
,	O
the	O
Schmidt	B-Application
net	I-Application
could	O
be	O
replaced	O
entirely	O
with	O
a	O
correctly	O
projected	O
polar	O
grid	O
,	O
and	O
grid	O
squares	O
from	O
a	O
map	O
re-drawn	O
into	O
this	O
disc	O
.	O
</s>
<s>
The	O
Schmidt	B-Application
net	I-Application
is	O
often	O
used	O
to	O
sketch	O
out	O
the	O
Lambert	O
azimuthal	O
projection	O
for	O
these	O
purposes	O
.	O
</s>
