Fill-in is usually performed immediately after completion
of the automatic compilation. The fill-in program is entered
into the computer, and the fill-in coordinate record tape is
placed on the tape reader. At operator command, the computer
sequentially reads the coordinates of each gap and positions
the floating mark at the point where automatic plotting was
resumed. For fill-in of automatic contour and profile records,
the operator plots across the missing portions of the compila-
tion, observing completion on the coordinatograph. During
orthophoto fill-in, where the output compilation is not visible,
travel during printing is restricted by the computer between
the start and end points of each gap. The computer controls
the Y-motion in traversing the gap, while the operator controls
elevation. At the option of the operator, the computer auto-
matically controls elevation across the gap as a linear inter-
polation between the recorded elevations at the end points.
If desired, the form-line contour generator can be turned off
during manual fill-in.
59. Manpower Support Requirements: The AS-11A or AS-11B/C
can be operated by a single operator. It has been found, however,
that optimum utilization of AS-11A equipment time requires an
investment of about 2.25 employees per instrument. This factor
includes allocation of time for vacation, sick leave, etc. It
is estimated that this factor will drop slightly for the AS-11B/C.
This is because the operator is now free to perform some of the
constant data calculations, manuscript finishing, etc., during
the operation of the automatic modes. If the option to calculate
model deformation corrections is exercised, off-line, general
purpose computer support is required. The automated system will
speed up output and reduce operator support requirements. It
will also, however, increase off-line support requirements in
the final manuscript preparation phases.
It presently requires 12 weeks of training on a AS-11A
to produce a journeyman compiler who works under the direction
of a senior AS-11A system operator. The AS-11B/C is a considerably
more complex instrument than the AS-11A. In addition to the
knowledge required to operate the analytical plotter control
computer, viewer and coordinatograph; there is now electronic
correlation, orthophotoscope and magnetic tape unit equipment
to comprehend. It is estimated that four weeks of training of
an experienced AS-11A operator on the AS-11B/C should make a
journeyman AS-11B/C operator. This does not represent a 1007
proficient operator, but one that can function in such a manner
that he can bring himself to the 100% level.
60. Test Results: In automatic contouring and profiling
operations, the accuracy of the AS-11B/C is consistent with that
of the manually operated AS-11A. Mean elevation errors of 0.015
to 0.030 millimeter are typical for contours and profiles auto-
matically plotted from materials having scale factors of 1:40,000
or smaller. This represents a 'C" factor between 1500 and 3,000,
based on profile analysis. Plotting is performed at speeds up to
10 millimeters per second, with the speed being automatically
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