historyg7tow.txt

这是经典的卫星编程应用程序

	       
	       Fixed a 'disappearing' plot trail on upload to protocol
	       1.0 units.

-------------------------------------------------------------------------------
     3.03.07 - Fixed a problem in downloading LEI waypoints caused by the
               addition of the -i lwrs command

-------------------------------------------------------------------------------
     3.03.06 - Improved the searching for g7datums.txt.

	       Added a 's' suffix to the '-o lwr' command.  If a 's#' is
	       appended, i.e.  'g7to -i inputs -o lwrs21' then the
	       waypoints would be sent to the LEI unit starting at
	       waypoint 21.  The first 20 waypoints in the LEI unit
	       would not be overwritten.

	       Added 's' suffix to '-i lwr' command.  'g7to -i lwrs4,8'
	       will download waypoints 4 through 8 from the LEI unit.

-------------------------------------------------------------------------------
     3.03.05 - When the source/destination is a Garmin GPS 12, 12XL or
	       GPS II+ (those with 16 icons) and the destination/source
	       is an Ozi file the command line option -1 should be
	       specified.  This will invoke a special conversion.  If
	       this parameter is not used then g7to assumes that a
	       Garmin unit with 48 icons is the source/destination of
	       the transfer between the Garmin<->Ozi file.

-------------------------------------------------------------------------------
     3.03.04 - The addition of a few more routines caused the size of
	       the static data area to pass 64k bytes.  This required
	       switching from the Large model to the Huge model for the
	       MSDOS version (g7to).  The .EXE is therefore about 50k
	       larger than it was previous to the switch to the Huge
	       model.  The program will also execute a bit slower than
	       before.

	       Added support for Street Atlas 6 files (.SA6).  SA6
	       supports 'Vias' in addition to 'Stops' in routes.  This
	       additional type caused an addition to the waypoint format
	       in text files.  The field immediately following the icon
	       display style is now a 1 if the point is a 'Via' in a SA6
	       route, 0 otherwise.

	       Fixed problem in uploading tracks to Protocol 1.0 units.
	       The last track point was not uploaded.

	       Fixed problem download routes from Street Pilot.  Only
	       two routes would be downloaded.

	       Added output so a single track can be sent to either
	       track 1 or track 2 of the LEI unit.

	       Modified g7to -hd output to print the Garmin Symbol Table
	       conversion information.  It may be better for most people
	       to execute 'g7to -hd | more'.

	       Added the ability to output Datums other than WGS-84 to
	       text files.  All input except text files is assumed to be
	       WGS-84.  All output is assumed to be WGS-84 except data
	       files (*.txt) which can have a different datum.  The
	       allowed datum set is in the new file g7datums.txt.  This
	       file must reside somewhere in the path specified by the
	       environment variable PATH.  If the file isn't found or if
	       the conversion data isn't found in the file then g7to(w)
	       will search it's internal tables.  If the proper
	       conversion data isn't found then an error message is
	       printed and WGS-84 is assumed

	       The new command line parameter, -U, is assigned the
	       datum.  For example, to output the contents in the GPS
	       unit as NAD 27 mean (also known as NAD 27 CONUS) the
	       command line is:

	       g7to -i g45w -U North_America_1927_mean

	       All characters between the start of the line and the first
	       comma are significant, but the case is not significant.  The
	       following two lines are interpreted as the same:

	       g7to -i g45w -U North_America_1927_mean
	       g7to -i g45w -U nORTH_aMERICA_1927_MEAN

	       The file g7datums.txt is a standard text file.  The first few
	       lines describe the format of the file.  If new datums are added,
	       please send the additions to [e-mail] so they can be added
	       to the main program file.

	       The command 'g7to -U 1' will print out the internal data
	       conversion table.

	       The datum conversion also applies when the output is a .csv file.
	       in this case the first line is "Datum:","datum name".  Waypoints,
	       tracks and icons are output to the .csv file.

	       Added a new command line parameter, -x.  This parameter
	       is used when reading Ozi files which were created for LEI
	       units.  If the -x parameter is not used and waypoints
	       created in Ozi for LEI units are read their symbols are
	       translated into GIII symbols.  On uploading to the LEI
	       units they will be incorrect.

	       Modified routes so that the SA 'Start' and 'Finish' points are
	       part of the route and are no longer the same as the first point
	       and last point in the route.  Each point is now unique.

	       The -1 flag has been removed.  The default is assumed and there
	       is no reason to ever set it on the command line.

-------------------------------------------------------------------------------
     3.03.03 - Added read and write of OziExplorer track (plot) files.  These
               files are output by Ozi using the file save track to file command
	       and have a .PLT suffix.

	       Added read and write of OziExplorer waypoint files, *.wpt.  g7to
	       differs from Ozi in that g7to always writes waypoints with their
	       full name.

	       Added read and write of OziExplorer Route files .rte.

	       Added read and write of OziExplorer Event files .evt, 
	       (Lowrance/Eagle Icons).

	       The above additions required the removal of the reading of the
	       GDM 3.1 files.  These files aren't necessary anymore as the
	       program itself will communicate with the LEI units.

	       The above also made it redundant to have the program read and
	       write the Garmin Export file types created by Ozi.  This ability
	       has been removed, i.e. *.otr and *.owp files are no longer
	       supported.

	       Fixed a route download problem when GPS is the Street Pilot.

	       Fixed a route upload problem when GPS is a Lowrance/Eagle with
	       Protocol 2.0.

-------------------------------------------------------------------------------
     3.03.02 - When reading/writing OZI waypoint files the Ozi symbol was
               ignored.  It no longer is.  However, if a comment with a ;
	       in it is in the Ozi Exported Garmin waypoint text file the
	       symbol value in the comment will override the value in the
	       Ozi symbol field.  For instance if the following line segment
	       is read from an Ozi Garmin exported waypoint file

	       ........  THIS COMMENT;18,A,N

	       the symbol assigned to the record will be the Garmin symbol
	       18, not the Ozi symbol represented by 'A'.

	       If the following line segment is read:

	       ........  THIS COMMENT,j,N

	       the Ozi symbol 'j' will be used.  This translates into the
	       Garmin symbol 163 which is the SWIMMING icon.

	       Waypoints with names >6 chars were read inproperly in some 
	       instances.  Fixed

-------------------------------------------------------------------------------
     3.03.01 - During some operations, i.e.  waypoint upload/download
	       pressing an 'x' or 'X' on the keyboard will cause the
	       program to immediately abort.  Pressing a 'y' or a 'Y'
	       will cause the program to exit the current routine.

	       ! command line parsing did not ignore 'white space' on the
	         line.  Fixed. '-w som' is the same as '-w    som' now.

	       .bmp files from GM100 and EEII are now rotated to the
	       vertical.  This should work for other L/E units which
	       support downloading the display, but -- no guarantees.

	       Corrected date error in upload of Lowrance/Eagle waypoints.
-------------------------------------------------------------------------------
     3.03.00 - When the input/output unit is a Lowrance/Eagle, the
	       program will first try the baud rate entered on the
	       command line or the default.  If those fail the program
	       will search the following common baud rates for the
	       proper one:

	       1200, 2400, 4800, 9600, 19200, 57600, 115200.

	       Added baud rate change to command line parameters.

               g7to -6 baud 

               Added support for Lowrance units using LSI 100 version 1.1

	       Note: in this release waypoints, icons, routes and tracks
		     are completely supported for upload and download.

	       The command to access Lowrance units is:

	       g7to -6 baud -i lwrw for waypoints
	       g7to -6 baud -i lwri for icons
	       g7to -6 baud -i lwrr for routes
	       g7to -6 baud -i lwr1 for track 1
	       g7to -6 baud -i lwr2 for track 2

		   g7to -6 baud -7 -o file.bmp
		   
		   will download the Lowrance display to the Windows
		   bitmap file 'file.bmp'.  The image will need to be
		   rotated left 90 degrees for some units.  The
		   GlobalMap Sport does not need rotation, the GlobalMap
		   100 does.

	       As with the Garmin units the commands may be
               concatonated, i.e.:

	       g7to -6 baud -i lwrwir12

	       If icons are sent to a SA file, the icon is sent as if it
	       were a waypoint named 'Icon'.  It will also have the
	       comment and display type parameters suppressed.

	       Changed length of waypoint name from 6 chars to 15 chars
	       in the TXT files.  This version will read the older
	       files, but it will only write the new file.

	       The baud rate for Lowrance GPS units defaults to 115200.
	       Use the -6 command to change it if you're not using
	       115200.

	       Changed the -w dxxx command.  Changed the 12XL command to:

	          -w d2xxxxx  to set the default 12XL/II+ icon

               Added the following to change the default Lowrance Icon:

	          -w dLxxxxx  to set the default Lowrance/Eagle Icon

		   Changed the way Icons were converted from<->to the
	       Garmin internal format for the 12's, 12XL's and II+ GPS
	       units.

	       Note:  Concerning Lowrance Routes and Waypoints....

		 The Lowrance units store waypoints in 'slots'.  The
		 same waypoint may be stored in each slot and you will
		 have 'n' waypoints each the same.  The Garmin units do
		 not allow multiple identical waypoints.

		 When waypoints are sent to the Lowrance units they are
		 sent to an assigned slot.  Slots that are not updated
		 remain the same as before the upload.  g7to by default
		 sorts all waypoints by name and sends those waypoints
		 first.  The program then marks all of the rest of the
		 waypoints inactive by sending inactive waypoints to
		 each slot.  A command line parameter, -l, has been
		 provided which will cause g7to to send only the active
		 waypoints, the others will not be marked inactive.  The
		 will remain as before.  For instance, if 20 waypoints
		 are sent to a unit that can hold 50 waypoints and the
		 '-l' parameter is specified on the command line, the
		 first 20 in the unit will be overwritten and the last
		 30 will unchanged.

                 Route number 'n' will show up in the Lowrance as route 
		 number n+1.  The text files start numbering routes at
		 '0' and the Lowrance starts numbering them at '1'.

		 Lowrance route number '1' will be treated as any other
		 route '0' for SA output.

		 Added command line option '-k' to have the waypoint
		 comment copied to the waypoint name for text file
		 output only.