4469 KB39 KB197320252023Krdžalić, DževadMulić, MedžidaOmićević, DžaninaVrce, Esadštevilka:2letnik:67str. 181-195ISSN:0351-0271DOI:10.15292/geodetski-vestnik.2023.02.181-195COBISSID_HOST:158321155URN:URN:NBN:SI:doc-0TX7E41EenZveza geodetov SlovenijeGeodetski vestnikgeodetic datumgeodetski datumirregular distortionsizstopajoče točkemodeli transformacijenepravilne distorzijeodstopanja položajaoutlierspoložajne razlikepositional discrepanciesprostorska distribucijaspatial distributiontransformation modelstriangulacijatriangulationTriangle-based horizontal geodetic datum transformations in Bosnia and Herzegovina| Trikotniško zasnovana datumska transformacija v Bosni in Hercegovini|The article describes the procedure for transformation between old and new horizontal geodetic datum in Bosnia and Herzegovina. Two triangle-based methods were used for transformation, which are based on irregular and regular triangular network. For development of transformation models two set of points were used, one for developing models (around 1200 points), and other for testing (around 850 points). Prior to development, all points were tested at presence of outliers, and outliers are marked in the points database. Results shows that large part of distortions in old triangulation network can be modeled with used methods. Maximal positional standard deviations with best model are 4.5 and 6.4 cm for two sets of points, respectively, while maximal positional discripencies are 30 and 40 cm for two sets of points. Each method has some advantages and disadvantages which are shown in this article. It is shown that the number, spatial distribution and quality of input data are crucial for development of highly accurate transformation model. Also, as an important contribution of this work, some problematic areas with irregular distortions are identified. Finally, some recommendations are given for improvement of developed modelsV članku je opisan postopek transformacije med starim in novim horizontalnim geodetskim datumom v Bosni in Hercegovini. Uporabljeni sta bili dve metodi, ki temeljita na – nepravilni in pravilni – trikotniški mreži. Za razvoj modelov transformacije sta bila uporabljena dva nabora točk, en za razvoj modelov (približno 1200 točk) in drug za testiranje (približno 850 točk). Pred razvojem so bile vse točke preizkušene na prisotnost odstopanj, ta so označena v podatkovni bazi točk. Rezultati kažejo, da je mogoče z uporabljenima metodama modelirati velik del izkrivljanj v stari trikotniški mreži. Največje standardne deviacije položaja z najboljšim modelom znašajo 4,5 in 6,4 centimetra za dva nabora točk, največje razlike v položaju pa so 30 in 40 centimetrov za dva nabora točk. Vsaka metoda ima svoje prednosti in slabosti, ki so tudi predstavljene v članku. Pokazano je, da so število, prostorska porazdelitev in kakovost vhodnih podatkov ključnega pomena za razvoj visoko natančnih modelov transformacije. Kot pomemben prispevek tega dela so bila prepoznana nekatera problematična področja z nepravilnimi izkrivljanji. Na koncu je podanih nekaj priporočil za izboljšanje razvitih modelovTEXTznanstveno časopisjejournalsSlovenian National E-content AggregatorNational and University Library of SloveniaZveza geodetov Slovenije