GpsMaster is a free and open source Java desktop application for creating, viewing, editing and analysing GPX-files. ![]() to delete sections of data which have already been uploaded or are not relevant.compress a track to reduce the number of points and speed up uploading.To reduce the data volume, you may want to :.This allows more accurate tagging of the uploaded logs. For instance, separate the flight log and the bus trip from the airport. You may want to split your logs into parts depending on some criteria.speeds higher than 300 km/h lower than 1 km/h (values can be computed by gpsbabel).distance between trackpoints more than 500 m,.If the receiver produced implausible results:.Also, if you spent a while at some place, the resulting cloud of points is not that useful for mapping.You may want to remove points where your GPS receiver had poor reception (say you were inside a building).To improve the remove or correct bad data:.You may want to exclude the area around your house ( Using filters with GPSBabel shows how to do that with gpsbabel) and possibly modify the timestamps. ![]() This can give people a lot of information you don't want them to have.
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