GPS-i tunnus, mis määratleb mitteideaalsete elementide (mis võivad olla tuletatud või täiuslikud elemendid) vahelise suunahälbe seisunditunnusena
GPS characteristic defining the deviation of orientation between non-ideal features (which may be a derived or integral feature) as a situation characteristic
Orientation characteristic is independent and complementary if the reference features of the deviated features of the independent orientation characteristic is identical for every feature.