ALLTRANS

Geodetic 3D transformations

• Transformations between Gauß-Krüger coordinates, UTM coordinates, geographical coordinates and 3D-Cartesian coordinates
• 7-Paramter Datum Transformation and the calculation of datum parameters using identical points
• Clearly laid out all settings at a glance
• Coordinate Input also possible via file import as well as manually
• Online-Help with plausibility test

Application

The ALLTRANS program provides fast, clearly laid out conversions and transformations between coordinates in different mathematical representations and geodetic systems.
It runs on Windows 9x/NT/2000/XP.

Features

Transformations can be made between Gauß-Krüger coordinates, UTM coordinates, geographical coordinates and 3D-Cartesian coordinates. If the geodetic datum of the start and target systems are not identical, the necessary datum shift in 3D space is carried out via a 7-parameter transformation according to the Bursa-Wolf model. The parameters can be calculated using identical points and saved in a file. The parameter calculation can be performed with a Standard-L2-Adjustment or otherwise using an adjustment with reweighting (robust parameter estimation). A statistical outlier test after the parameter estimation is also implemented.

The following Earth ellipsoids are incorporated as reference ellipsoids for possible geodetic data:

• DHDN, Bessel Ellipsoid
• S42, Krassowski Ellipsoid
• ETRS89, WGS84 Ellipsoid
• ED50, Hayford Ellipsoid
• User1, GRS80 Ellipsoid
• User2, WGS72 Ellipsoid
• User3, International Ellipsoid
• User4, Everest Ellipsoid
• User5, Clarke1880 Ellipsoid
• User6, Clarke1866 Ellipsoid

The transformation can be effected via manual input or through file import. The option exists to store the manually entered coordinates in a file. In the case of data input via file import, the output is also principally sent to a file. The name and directory of the files can be freely selected. The file content can be displayed at any time.

The mathematical accuracy of the transformation within a GK meridian strip has a mean value of around 0.1 millimeter. The GK meridian strip is automatically calculated by default during the transformation into Gauß-Krüger coordinates, but it can also be predetermined. (The same applies analogously for UTM.)

The manual input of data is checked for erroneous input, which is then clearly indicated.