AgNav Quick Reference Guide for STS 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: Start NAVVIEW software. 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 Select an area file Navigate through the listing with <F1> (down) and <F2> (up). Select area to display by pressing <Enter>. Select flights to replay 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>. Printing the flight 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. Drawing the treatment area After selecting your print options, the screen will show a graphic of the treatment block and flight statistics. Switch between “NORMAL REPLAY” and flight path(s) 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 flightline quickly with little opportunity to get any flight information.) Controlling the replay 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 <F3> Toggles between center on area/aircraft Ctrl-left-arrow Toggles the replay counter between 1, 10, 100 steps <Alt-F8> Toggle between Quick Replay 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 AgNav Quick Reference Guide for STS 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 texteditor. See “Editing .NO1 files manaully” below. Start NAVVIEW software. 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 Select an area file Navigate through the listing with <F1> (down) and <F2> (up). Select area to display by pressing <Enter>. Select block to edit 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 consistant 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 goto the next screen. Enter the coordinates for the first corner of the treatment block. The format must be degrees, minutes, decimal minutes (DM.m). 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. Displaying changes 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 a text editor to edit the Use MS-DOS EDIT, EDLIN or MS-Windows 3.1/95 NOTEPAD to edit a .NO1 file. Using a word processor (e.g. MS-Word or WordPerfect) can add .NO1 file formatting information rendering it unusable. File contents 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. Changing the corner coordinates 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.
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