TM 5-6675-316-14
NOTE
When X key is depressed, X and Y-coordinates on XY display are sent to
teletype along with code for “pen up” command. When tape is played back,
machine will move to this point with pen up, as commanded, and no line will
be drawn.
When Y key is depressed after point, coordinates are sent
with code for “pen down” command.
Machine, when tape is played back, will
move to these coordinates with pen down, drawing line,
(13) When beginning of first line is located, press X on XY display keyboard.
(14) Locate end of first line and press Y.
NOTE
How and where dotting microscope is moved in getting to end has no effect
on results.
Only final coordinates are recorded. Line will be drawn
straight from last point to present point.
(15) Repeat steps (12) through (14) for each new line to be digitized. See
example below.
NOTE
For lines connected, i.e., the beginning of one is the end of another, it
is not necessary to use X key to reenter common point.
After end of
first line is recorded, simply move to end of next line and record coordi-
nates with Y key.
Anywhere two lines meet from different angles can be
beginning or end.
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