All of the powerful uSMART Base Mapping routines are available via the GPS i.e. the GPS can be regarded as an absolute 3D mouse or more correctly a 3D digitiser.
Routines such as Linear, SPoint, Bank, Structure, etc.
are all available. These can also be highly effectively used with the stream settings e.g. following the edge of a road in a vehicle with a GPS while the feature is dynamically captured (e.g. in curve mode) at a user specified minimum and maximum interval with additional points automatically added around sharp curves.