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Libris Britannia 4
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ENGINEER
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0804.ZIP
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PLATHELP.MSG
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Text File
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1987-07-05
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14KB
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BEGIN NEW PLAT
You must first tell the computer whether the plat you have reports
angles to seconds. If you enter "Y" at the question does the plat
report angles to seconds, the program will accept eighteen characters and
will interpret the characters as follows:
Digits Program Will Receive And Interpret It As
------ -------------------- -------------------
1 N, S, or D The first direction
2&3 Any number, 0-9 Angular Degrees
3&4 Any number, 0-9 Angular Minutes
5&6 Any number, 0-9 Angular Seconds
7 E or W Deflection from first direction
8-18 Any number, 0-9 Distance in feet
or period(decimal)
If you enter "N", the program will accept eighteen characters and will
interpret them as follows:
Digits Program Will Receive And Interpret It As
------ -------------------- -------------------
1 N, S, or D The first direction
2&3 Any number, 0-9 Angular Degrees
3&4 Any number, 0-9 Angular Minutes
5 E or W Deflection from first direction
6-18 Any number, 0-9 Distance in feet
or period(decimal)
The screen will guide through the entering of survey line information.
For degrees, minutes, and seconds any of the digits 0-9 are acceptable in
any place within the cell. Leading zeroes are not required. When an input
error is made the program will beep (more than once if there are more than
one error) when the user attempts to enter the survey line. The cursor will
then move to the cell in which an error was detected. In the case of
multiple errors it will move to the first cell containing an error. Errors
that will be detected are entries of more than 90 for degrees, more than 59
for minutes and seconds, 0 or blank spaces for distance, and blank spaces
for direction and deflection.
CORRECTIONS, DELETIONS, AND INSERTIONS
If an error is made when lines are input, the opportunity is provided
to edit and make corrections after all lines have been entered and "D"
has been entered alerting the program that no more lines are forthcoming. A
screen upon which the easting and northing errors, gap, error per
10,000 feet traverse, and acreage are shown also asks whether a printed copy
or screen display is desired to review the survey lines. When a
correction, deletion, or insertion is necessary, the survey lines are
displayed on the monitor such that the operator can easily make the
correction.
CURSOR MOVEMENTS
When entering data, the arrow keys are active. "Home" move the cursor
to the top cell, and "end" moves the it to the bottom. Backspace erases as
it moves backward. Delete erases while the cursor remains stationary. The
insert key is not active. Enter or Return functions as the down arrow
except when the cursor is in the bottom cell in which case it enters the
survey data. It will enter data from any cursor position if "D" has been
entered in the top cell. F9 also enters data. F10 clears the entry screen
without entering data.
SKETCHES OF THE PLAT: When reasonably sure that there are no errors
in the surveylines, the user may direct the program to draw the plat. In
which case a choice of a screen display or printout of the sketch is made.
If printed copy is selected, the following will happen:
(1) A computer drawing of the plat will appear on the screen. The
drawing will be of no particular scale, but will be the scale
that will produce the largest size that can be displayed on the
screen. The drawing will be oriented on a north-south axis and a
north arrow will appear. Any gap in closure will be graphically
shown. Plats with large errors may not be fully represented on
the screen because of the closure errors. If such a case occurs,
survey lines should be rechecked, especially for clockwise
orientation.
(2) To obtain a printed copy of the computer generated sketch, depress
the shift key and while holding it down depress the "PrtSc" key.
This will cause the contents of the screen to be printed. The
computer must be in the graphics mode for the screen to print. To
enter graphics mode type "GRAPHICS" and enter at the DOS prompt.
The system must have graphics capability for this function to work.
(3) When through with the sketch, the depression of any key and a
screen will allow the selection of a scale with which to have a
sketch drawn. If a scale too small for the printer paper is
selected, the program will advise and request another scale. The
program will allow smaller scales (because of larger drawings)
when wide paper is used, and the program is so advised with a "W"
in the PRINTER.DTA file. Master Menu selection "P" for managing
printer allows the user to advise the program whether to use "W"
(wide) or "N" (narrow) paper.
(4) When the scale is selected, the printer will produce a matrix of
printed characters which when connected will be a sketch to scale
of the subject plat. The computer generated sketch will be
helpful in connecting the characters properly. The characters are
also selected by the operator by advising the program through the
Master Menu selection "P". When PRINTER.DTA is generated by
PLATCHEK, ASCII character #248 is selected. 248 produces a degree
symbol (small circle). The program will continue to use that
symbol until changed.
If a screen display only is chosen, step (1) above will occur and the
the option of step (2), but no scaled printout will be produced.
CLOCKWISE DIRECTION: It is essential that from the starting point all
lines are reported in a clockwise direction. The location of the starting
point does not matter. Sometimes plats are encountered which give their
directions in a counterclockwise direction; these calls must be reversed.
For example, if a plat is traveling counter-clockwise, NW direction must be
changed to SE, NE to SW, and vice versa. Sometimes this situation is en-
countered with one or more lines of a plat which for no apparent reason is
reported as the backward direction of all other lines; i. e., is going in a
different direction by 180 degrees. In subdivision plats this is often
found as the line call on adjacent lots while clockwise for one is counter-
clockwise for the other.
MANAGING FILES: One option on the menu is to manage files. There are
several uses to be had from this option:
(1) Finish the Input of A Plat: If the operator is entering a lengthy
plat and does not have the time to complete the plat at one sitting,
the operator may enter "D" to inform the computer that no more
information will be forthcoming. There is no need to print the plat as
it is incomplete and the printout would be misleading, but the operator
should respond in the affirmative when asked whether the plat should be
saved. The operator would then enter the appropriate name for the
partial plat. When the operator returned to complete the plat, he or
she would press "M" for "Manage Files". Next the program would ask for
the name of the plat file. The operator would enter the appropriate
name and proceed with courses and distances where left off. IMPORTANT:
When the operator wishes to stop and then continue to input plat data
later, he(she) should always begin the input data with the line leading
from the northernmost point on the plat. The program reorients the
input data to begin with the northernmost point before platting or
saving as a file occurs; therefore, the survey lines would begin and
end with a different line when the file was recalled than was input by
the operator unless the operator began with the northernmost point. If
the entire plat data is to be entered at one sitting, it does not
matter which line is entered first.
(2) Correct a Plat: After a plat has been entered, it may not close as
accurately as required. The operator may then save the plat and
reexamine it for errors. If there appears to be a serious error in the
plat the user could consult with the surveyor. Once the correction was
found, the line could be changed as with a new plat. It may be useful
to save all plats for a period of time until it is known that there is
no further use for them.
(3) Erase a Plat: A plat can be erased by making the proper selection
and entering the name of the plat.
HELP SCREENS
A help screen menu is displayed on the screen used to receive
survey line data. Function keys 1 through 6 produce help screens to
assist the user while the program is in operation.
LINE TO CLOSE PLAT
During the input of survey lines the user may press F7 at any time
to determine the course and distance of the survey line that would
close the plat. The line computed would connect the starting point of
the first line entered to the ending point of the last line entered.