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VisualGPS Revisions

Revision History:

October 8, 2002 Version 3.33

  1. Fixed DLL HELL. WinXP MSVCRT.DLL and MSVCIRT.DLL were used for the new install. This caused a problem with Win98 users. Now using normal versions of these DLLs.

October 7, 2002 Version 3.32

  1. Renamed all resourced to VGPS from old company
  2. Created new install (Wise)

April 11, 2001 Version 3.30

Fixed satellite (PRN) database to accept PRN numbers greater than 32. Hence, WAAS.

July 15, 2000 Version 3.21

  1. Fixed bug in signal quality window. It did not reflect coherent information to the NMEA string.
  2. Fixed some NMEA decoding.

May 4, 2000 Version 3.20

  1. Fixed NMEA parsing bug
  2. Made survey statistics easer to read.

October 13, 1999 Version 3.12

  1. Updated user interface to reflect GUI fads...
  2. Fixed various bugs.
  3. Enhanced printing.

November 11, 1998 Version 3.11

  1. Added the ability to ignore NMEA sentence checksums. VisualGPS will now check for NO checksum and use the sentence. If the sentence has a checksum, VisualGPS will use the checksum. Earlier versions of NMEA specification specified that the checksum is optional. Current version specify that the checksum shall be transmitted with each sentence.
  2. Added NMEA Command Monitor Window - This window will show all NMEA sentences as they are received.

October 9, 1998 Version 3.10

  1. Fixed elevation validation. Elevation wan not validated correctly in previous versions.
  2. Position and Elevation validation is now using the GGA GPS quality parameter.
  3. Added Position formats. This is found in the General Settings dialog.
  4. Added GPS quality indicator in the status bar. This will indicate a GPS valid fix, deferential GPS with station ID and duration and PPS mode.
  5. Added Support for Motorola(tm) Oncore(tm) VP/GT GPS receiver (GPS Settings)
  6. Added Properties dialog for Signal Quality Window. Now the maximum and minimum values can be set for SNR. Also there is an automatic mode.
  7. Added, a Physical GPS Mask Angle plot in the Azimuth and Elevation Window complete with printing.
  8. Added Properties dialog for Azimuth and Elevation Window for various parameters.
  9. Added printing of the Azimuth and Elevation Physical GPS Angle in the Azimuth and Elevation window.

September 28, 1998 Version 3.01
- Fixed memory leak.

September  18, 1998 Version 3.00
- Added Enhanced printing - Statistical data is not included to print. Also a few bugs were fixed.
- Added NMEA logging where logging of the incoming NMEA sentences are logged to a file.
- Added position solution inclusion. This is where the satellites change colors depending if they are used in the position solution.
- Reworked the HDOP/VDOP position averaging threshold scheme.
- Renamed Standard Deviation to StdDev in the statistics

August 27, 1998 Version 2.60
- Added least squares fit position average
- Added graphical position average indicator for both the running average and the least squares fit average.
- Added Standard deviation to monitor position movement and SA
- Added some support for Tripmate™ GPS receiver
- Added NMEA setting / filter
- Support for more baud rates (1200, 2400, 4800, 9600, 19200, 38400, 57600 and 115200)

June 21, 1998 Version 2.50
- Added the ability to read NMEA text file --  found in communication settings
- Added LED in status bar to indicate that valid NMEA sentences are being processed
- Added GPS time in status bar - This time id from the GPGGA message
- Added satellite trails to view the path of individual satellites

May 13, 1998 Version 2.02
- Fixed bug. The default survey window did not initialize the distance formulas and ratios which could result in strange distances or cause the program to fault. Bug is now fixed.

May 12, 1998 Version 2.0
- Fixed round-off error in position text
- Centered survey plot within survey path window
- Added printing and print preview for Survey
- Added latitude and longitude grid to Survey paths
- Updated help
- Decoded PDOP, HDOP and VDOP from NMEA GPGSA message and added them to the survey statistics window

March 10, 1998 Version 1.01
Removed "recent" file list form file menu - not supported

March 8, 1998 Version 1.0
Released for the first time.