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Relative
Coordinate
System
The
relative
coordinate
values,
compared
with
the current position
of
the pen,
are
determined
as follows:
O
o
o
o
o
o
o
o
o
o
o
o
o
+v
Current point
+U
(X,
Y)
value
and
(U,
V)
value agree
only
when
the
pen
is
in
the
original
position
(0, 0).
You
can change
the location
of
the
origin
position
by
using the
POSITION
and/or
the
FEED
switch.
Moved by POSITION
switch
(X
direction)
o
o
o
o
o
o
+Y
(0,0)
-+X
o
o
o
o
o
o
Remember
that
the
X
and
Y
coordinates
move
with
the
pen
when
the
POSITION
or
FEED
switch
is
used.
Thus,
when
these switches are pressed the absolute
origin
and
the absolute coordinate
system
also
shift
with the pen.
Example:
A
(100,200)
B
(100,
200)
When
the
pen
is
moved
from
A
to
B
with
the
POSITION
switch, the
new
coordinate value of
B
becomes
the
original
coordinate value
that
A
had
(100, 200).
The
origin
can
also
be
moved
by
use
of
the
G02
and
G03 commands
(See
page
1
7).
-13-
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