GPSMash

GPS Tracklog Processing Tool

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• Combining multiple GPX files
• Converting NMEA logfiles to GPX format
• Repairing broken GPX file
• Separating tracks to individual GPX files
• Generating time/speed histogram
• Converting to X3D format for 3D visualization
• Redirecting data output
• Using interactive mode
• Crop GPS track (interactive)

Example: Converting NMEA logfiles to GPX format

The loadnmea command must be followed by the names of one of more NMEA-logfiles or folders containing NMEA .LOG files.

The following will load all .LOG files from the C:\nmea folder, will clean up the data (adding track breaks where necessary) and will combine the resulting tracks in a single GPX file:

GPSMash.exe -loadnmea C:\nmea -cleanup -outgpx C:\file.gpx

Alexander Avtanski