• TRANSDAT - World-wide coordinate transformations
•  Brief Description of the Current Version
•  Detailed Program Description
•  Coordinate and Reference Systems - Overview
•  List of Coordinate and Reference Systems
•  NTv2 Support  Multi Language Support
•  Screenshots  Download TRANSDAT
•  Prices TRANSDAT  Order TRANSDAT

Supported Coordinate systems and Reference systems (datum shifts)

TRANSDAT Geosoftware executes coordinate transformations and geodetic datum shifts between many coordinate and reference systems of America, Australasia, Europe, Germany special and world-wide, at high precision and high speed:

1. The current and many historical coordinate and reference systems of all countries of the European Union (EU) including the eastern extensions and the systems of the European non-EU countries.
2. The European ETRS89 systems forced by INSPIRE with respect to the continental drift.
3. The US and Canadian State Plane Coordinate Systems (SPCS) and other systems of the North American continent.
4. Many coordinate and reference systems of the countries of all continents and the world-wide used coordinate and reference systems.
5. World-wide NTv2 grid file supported coordinate transformations.
6. The coordinate and reference systems of the old and new German Federal States, the 40 Prussian Soldner Land Registers, the German 'Lagestatus', special reference systems of the German Federal States and BeTA2007.
7. User defined coordinate systems, reference systems and earth ellipsoids.

Here you find a  list of all states and systems supported by TRANSDAT.

User defined coordinate systems

Additional to in TRANSDAT predefined coordinate and reference systems listed under the link above, user defined coordinate systems can be used by the input of the necessary transformation parameters.

User defined reference systems (datum shifts)

During coordinate system selection, the appropriate reference system can be selected automatically or independent from the coordinate system. The reference systems listed under the link above can be used for geodetic datum shift in both source and target coordinate systems. It is also possible to setup user-defined reference systems for transformations into regional grids or custom coordinate systems. The transformation parameters include three translation vectors, three rotation angles and a scale factor in case of the Helmert transformation "Coordinate Frame Rotation" or "Position Vector Transformation" datum shift, or three translation vectors in case of Molodenski three parameters datum shift.

User defined earth ellipsoids

User defined coordinate systems and user defined reference systems require the definition of suitable earth ellipsoids. The definition effected via the selection of pre defined ellipsoids or via the input of the semi axes of the source and target ellipsoids.

NTv2 support

Exact datum shifts in local systems are possible by supporting the  NTv2 standard with grid files.

Direct mode calculations

The source coordinates can be entered directly into the input fields of the program window and transformed using the previously selected settings. The calculated results will be displayed. The program will automatically save the entered source coordinates and the calculated target coordinates to a log file. You can review and retrieve log file contents using external programs.

File based calculations

It is very important to be able to perform fast calculations on large amounts of coordinate data stored in files of different file formats. TRANSDAT allows loading data from Text, CSV, SDF, dBase, ArcShape and ArcGenerate input files. A large number of Setup options allow the adjusting to different input file data structures. Calculated coordinates can be stored in Text, CSV, SDF, dBase, ArcShape and ArcGenerate output files. Here again TRANSDAT offers a large number of program Setup options for the output file structure. The program can locate coordinates in text files and replace the located coordinates with the transformed coordinates.

Batch processing

The program offers the possibility of working on one or more files automatically from a batch. Thus makes the program TRANSDAT controllable from other programs.

Calculation accuracy

TRANSDAT uses coordinate transformation formulas based upon EPSG and POSC specifications and publications by Schatz, Schuhr and Klotz and Hooijberg. Algorithms used for country-specific transformations are either published or made directly available by the Measurement Authorities of the respective countries or by similar respectable institutions. To achieve the highest precision only strong formula algorithms are used for calculations.

Coordinate transformations without changing the geodetic Reference System have extremely high precision ranging within millimeters. A good example of geographic coordinates transformations between Gauß-Kruger and UTM coordinate systems made with TRANSDAT are the results published by the North-Rhine Westphalia Land Survey Commission. It was confirmed that the differences were within the lower millimeter range.

For a statement about the accuracy were comparative calculations realized with a set of test data of the "Arbeitsgemeinschaft der Vermessungsverwaltungen der Länder der Bundesrepublik Deutschland" (ADV). It was confirmed that the differences were less then a millimeter. Please read the  test report.

GIS-Systems

Shape files of the GIS systems ArcView and ARC/INFO can be converted directly into an other coordinate system while maintaining the internal data structure. During the file handling the unrestricted conversion between the data formats text, dBbase, ArcShape and ArcGenerate with or without coordinate transformation is possible. In ArcShape files available geometries can be represented in the program internal Shape Viewer.

Multilanguage support

The program SEVENPAR is equipped with a modern graphical user interface of which handling is to understand intuitively. For each window detailed help texts can be shown. The detailed electronic documentation of the program TRANSDAT is available in both English and German language. However, the user interface can be represented in many languages. For this purpose, external language files are used. When starting the program, it notes which language files are available in the calling directory. The found languages then are provided for selection in a list box. By  creating new language files, new languages can be added to the program TRANSDAT at any time.

Network ability

Teh program TRANSDAT can be run on most common networks. The client installations works automatically. It is possible to use Terminal Services on WINDOWS Servers like e.g. "Citrix Terminal Server".

GPS interface

TRANSDAT has an integrated GPS interface to receive coordinates, speeds and motion directions with an inexpensive GPS antenna connected to a serial or USB interface. In a graphical window up to 2500 GPS positions are shown.

Using with own programs

All TRANSDAT geodetic functions are contained in a Windows 32-bit dynamic link library named  GeoDLL. You can make calls to GeoDLL from your programs. Using GeoDLL to perform geodetic calculations in your applications will save you time and expense necessary for development of geodetic transformation routines.

Hardware and operating system requirements

TRANSDAT is a quite complex application. To ensure stable performance it should be installed on a personal computer with the processor class 80486 or higher and at least 32 MB RAM available. The program will run under Microsoft WINDOWS 95 / 98 / 2000 / XP / NT / Vista / 7 and compatible operating systems.

Basic and Professional version

The characteristics specified here describe the professional expenditure of the program TRANSDAT. A economical basic expenditure, in which most coordinate transformations can be accomplished, excludes only for the specialists reserved definitions of own coordinate systems, reference systems and earth ellipsoids, the batch processing and the GPS interface.

Pricing, ordering and licensing

Pricing and ordering information can be found in the  Price list. For available licensing options have a look to the  License page. Order the program with the electronic  Order Form.

Download of the test version

The free test version of the program with a detailed user manual can be  downloaded as ZIP packed file by the Internet. For unpacking the download file you need an unzip program, which you can download  from this side.