TESTIRANJE IN IZBOLJŠAVA HORIZONTA LNE DATUMSKE TRANSFORMACIJE : ŠTUDIJA PRIMERA V BOSNI IN HERCEGOVINI

ABSTRACT This study evaluates the applicability of different models of coordinate transformation between local and global geodetic datums. The results indicate the grid-based method as the best solution, assuming a sufficient density of tie points. Transformation based on a limited number of tie points, which do not reflect the real state of the survey basis in a particular area, have limited possibilities to reduce non uniform and unequally dis'tributed distortions that are usually found in the spatial data. KLJUČNE BESEDE geodetski datum, transformacija koordinat, modeliranje grida pomikov, ocena položajne nata KEY WORDS geodetic datum, coordinate transformation, grid look-up table čnosti modeling, positional accuracy assessment (ProQuest: ... denotes formula omitted.) 1UVOD Ob uvajanju novih državnih referenčnih koordinatnih sistemov, ki temeljijo na globalnem mednarodnem terestričnem referenčnem sistemu (ITRS), so se geodeti v številnih državah znašli pred izzivom geometrijske transformacije državnih prostorskih podatkov v nove koordinatne sisteme.