BUG-000111497 for ArcGIS GIS Server

Numéro d’ID de bogue	BUG-000111497
Envoi	February 9, 2018
Dernière modification	June 5, 2024
S’applique à	ArcGIS GIS Server
Version trouvée	10.3.1
Statut	Will Not Be Addressed

Informations supplémentaires

At 10.4, we replaced the algorithm used for the pe_cart_to_curv and pe_curv_to_cart functions. These functions convert between latitude-longitude-ellipsoidal heights and 3D Cartesian, XYZ, coordinates. The functions are used in equation-based transformations like geocentric translations, coordinate frame, position vector, and Molodensky-Badekas. The new algorithm is called the Fukushima version and is more accurate over a wider range of ellipsoids and is significantly faster. The results differ by under a millimeter, so we decided the positive aspects outweighed the small changes in the results. Between GDA 1994 and WGS 1984 (used by 3857), there is a position vector-based transformation, GDA_1994_To_WGS_1984. Even though the parameter values are all zeroes, the coordinates are still converted from latitude-longitude to XYZ then back to latitude-longitude which is where the difference is introduced.