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nmea errors in GPSBabel 1.3.7-beta20091003
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nmea errors in GPSBabel 1.3.7-beta20091003
by George Pinson
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NMEA errors with GPSBabel 1.3.7-beta20091003 graphical interface.
Since my test is with .gpl files, that is my source. Problem with new graphical interface. (Also note that the latest version runs very well where as the first version [GPSBabel-1.3.7-beta20090906] crashed on startup with both of my computers - OS = WinXP SP 2&3 - looks good) 1st, when options for writing nmea ouput files is used, and I only want to write GPRMC and GPGGA (all that is really needed to run any program) sentences, the command line is in error. What it writes is "-t -i gpl -f C:/input.gpl -o nmea,gprmc,gpgga -F C:/output.nmea" What is should write is "-t -i gpl -f C:/input.gpl -o nmea,gpgsa=0,gpvtg=0 -F C:/output.nmea" Explanation: In first instance, GPSBabel will write GPRMC, GPGGA, GPVTG AND GPGSA unless told not to so the command in effect does nothing. In the second command, (from the old graphical interface) any sentence not checked will be set to zero and therefore not written. Error still in writing NMEA sentences - Position Fix Type. When input is another NMEA file, (stripping unneeded sentences or finding errors) and in sentence GPGGA, position 3 (fix quality) if value is "2", then fix is "DGPS". If value is "1" then "3D". Whatever is in this position from the input file, should be copied to the output file unchanged. When input file is Delorme .gpl file, and value is 3 then fix is is "3D" and position 3 (fix quality in GPGGA should be "1"), if value is 5 then fix is "DGPS" and (fix quality in GPGGA should be "2") Values of first value of Delorme .gpl files are 1 = no fix 2 = 2D fix 3 = 3D fix 4 = ??? 5 = DGPS Yeah, I know I am nit-picking, but for a program as wonderful as GPSBabel, I just think this should be accurate if possible. Thanks George Pinson ------------------------------------------------------------------------------ Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference _______________________________________________ Gpsbabel-misc mailing list http://www.gpsbabel.org Gpsbabel-misc@... To unsubscribe, change list options, or see archives, visit: https://lists.sourceforge.net/lists/listinfo/gpsbabel-misc |
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Re: nmea errors in GPSBabel 1.3.7-beta20091003
by Robert Lipe-4
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On Wed, Oct 21, 2009 at 9:17 AM, George Pinson <gfpinson@...> wrote: NMEA errors with GPSBabel 1.3.7-beta20091003 graphical interface. Good catch. Bools that default to true are probably not handled well. In the second command, (from the old graphical interface) any sentence I went though this with someone this summer and changed the delgpl reader to handle this. Can you give a test file where we're disappointing? While a description is handy, with multiple readers and multiple writers, it's a lot easier to stick code in a debugger than to figure things out from a description alone. RJL Yeah, I know I am nit-picking, but for a program as wonderful as ------------------------------------------------------------------------------ Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference _______________________________________________ Gpsbabel-misc mailing list http://www.gpsbabel.org Gpsbabel-misc@... To unsubscribe, change list options, or see archives, visit: https://lists.sourceforge.net/lists/listinfo/gpsbabel-misc |
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