-
This guide will allow you to perform the basic functions of
viewing and editing the files associated with the AgNav system. Be
sure to refer to the AgNav
GPS Guidance System Quick Start Manual for additional
information. For references to longitude/latitude formats, see
Guide for Converting Lat/Long Coordinates.
Viewing Block & Flight Files:
-
Change to the directory where flight data files are located
(Example: CD \FLIGHTS). Start the Navview program by giving the
full path to the program: \AGNAV\NAVVIEW .
-
Navigate through the listing with <F1> (down) and
<F2> (up). Select area to display by pressing
<Enter>.
-
The next screen prompts you for "QUICK PARAMETER SETUP?
Y/N" Press <Enter> for "Yes". After viewing
the parameter setting, press <Enter>. Press <Enter>
to select "SPRAY DATA FILE" as the source. Either
press <Enter> to select "DISPLAY ALL" or press
<F6> to deselect "DISPLAY ALL". Move through the
list with < F1> or <F2> and tag (select) with
<F6>the flight file(s) of interest. When your selection is
complete, press <Enter>. If the files selected form a
continuous flight path press <F1> to select
"Yes". Press <Enter>.
-
Next, you will be asked to choose your printing options. Choose
"NO PRINT" to skip the printing process or select one
of the print options for output. If you choose a printer, you
will need to select "Portrait" or
"Landscape" page orientation. Press <Enter> to
accept orientation. Selecting "TO FILE" will create a
file "AGNAV.PRN," which can be printed later. Select
"TO PRINTER" to setup NAVVIEW to print when
<ALT-P> is pressed.
-
After selecting your print options, the screen will show a
graphic of the treatment block and flight statistics. Switch
between "NORMAL REPLAY" and "QUICK REPLAY
" by toggling <Alt-F8>. (NORMAL REPLAY displays
flight progress and can be paused to examine the flight in
progress; QUICK REPLAY draws the treatment block and flight line
quickly with little opportunity to get any flight information.)
-
Normal Replay
|
|
Quick Replay
|
Up-arrow |
Increase replay speed |
|
<F1> |
Zoom in |
Down-arrow |
Decrease replay speed |
|
<F2> |
Zoom out |
Left-arrow |
Pause and backup flight on area/aircraft
|
|
<F3> |
Toggles b/t center |
Ctrl-left-arrow |
Toggles the replay counter between 1, 10, 100 steps
|
|
<Alt-F8> |
Toggle between Quick and Normal Replay
|
Right-arrow |
Step flight one record at a time |
|
|
|
<Enter> |
Toggles pause/replay |
|
|
|
<F1> |
Zoom in |
|
|
|
<F2> |
Zoom out |
|
|
|
<F3> |
Toggles between center on area/aircraft
|
|
|
|
<F4> |
Clear the display and restart the replay
|
|
|
|
<F5> |
Clear the display and restart from the last flight
|
|
|
|
<F6> |
Clear the display and restart from the next flight
|
|
|
|
<Alt-P> |
Print or capture the current screen
|
|
|
|
<Alt-F4> |
Toggles spray and flight path/spray only/flight path only
|
|
|
|
<Alt-F5> |
Toggle between thick/thin crosshatching
|
|
|
|
<Alt-F6> |
Toggle draw/don't draw grid |
|
|
|
<Alt-F7> |
Display data inside spray area only
|
|
|
|
<Alt-F8> |
Toggle between Quick Replay and Normal Replay
|
|
|
|
<F10> |
Menu of keyboard controls |
|
|
|
<Ctrl-F1> |
Exit Replay |
|
|
|
Editing Block Coordinates:
Although you can use the NAVVIEW to edit the block coordinates, it
is easier and faster to edit the file manually with a text editor.
See "Editing .NO1 files manually" below.
-
Change to the directory where flight data files are located
(Example: CD \FLIGHTS). Start the Navview program by giving the
full path to the program: \AGNAV\NAVVIEW .
-
Navigate through the listing with <F1> (down) and
<F2> (up). Select area to display by pressing
<Enter>.
-
The next screen prompts you for "QUICK PARAMETER SETUP?
Y/N" Press <Enter> for "Yes". Press
<F5> to create a new block. Press <Enter> to the
question "Do you have a keyboard?". Edit the suggested
filename; maximum characters is 8. To be consistent with the
other files, make the extension ".NO1". The program
will look for the file and ask if you want to create a new file
if it cannot find it. Press <Enter>. Edit the parameters,
if needed. Press <F4> to go to the next screen. Enter the
coordinates for the first corner of the treatment block. The
format must be degrees, minutes, decimal minutes (DM.s). Type
the latitude degrees, followed by a space, then the minutes.
Seconds must be converted to decimal minutes. (See Guide for Converting Lat/Long Coordinates for help in
converting to DM.m.) Press <Enter> and then type the longitude degrees,
followed by a space, then the minutes. Press <F1> when
finished entering treatment block corners. Use <F1> to
select "Yes" to the prompt "Exit editor?".
Press <Enter>. Press <Enter> again to accept
"Yes" to "Save file?". You will be returned
to the Main Menu.
-
To display the treatment block, use <F1> to move the
just-created or modified block. Press <Enter> to accept.
The next screen prompts you for "QUICK PARAMETER SETUP?
Y/N" Press <Enter> for "Yes". After viewing
the parameter setting, press <Enter>. Press <F1> to
select "REMOTE", Press <Enter> to display the
block.
Editing .NO1 Files Manually:
-
Use MS-DOS EDIT, EDLIN or MS-Windows NOTEPAD to edit a .NO1
file. Using a word processor (e.g. MS-Word or WordPerfect) can
add formatting information that renders the file unusable.
-
Each line in
the .NO1 file has a record type indicated by the first field.
The record type for the block corner is "2". The
fields for type 2 are: type, latitude, longitude, label
("AREA CORNER"), corner number.
-
The format for the latitude and longitude coordinate is degrees,
decimal- degrees (D.d). The longitude value needs to be preceded
by a "-" (minus sign). See
Guide for Converting Lat/Long Coordinates
for help in converting from degrees, minutes, seconds (DMS) to
degrees,decimal-degrees.
|