GEOTRANSFORMER

Basic Information

Name of Program

GEOTRANSFORMER

Version-Date

July 2010

Description-Date

July 2010

Catchwords

coordinate transformation
coordinate system
Gauss-Krueger
European Terrestrial Reference System 1989 (ETRS89)
world geodetic system 1984 (WGS84)
european datum 1950 (ED50)
Rijksdriehoeksmeting (RD, coordinate system of the netherlands)
universal transverse mercator (UTM)

Short Description of Functionality

This program transforms coordinates between different coordinate systems. Currently implemented coordinate systems are:

• Gauß-Krüger (stripe 2 to 5)
• spherical coordinates (longitude, latitude)
• Universal Transverse Mercator (UTM)
• Rijksdatum (Netherlands)
• local metric central projection

Currently implemented geodetic Helmert transformations:

• European Terrestrial Reference System 1989 (ETRS89)
• World Geodetic System 1984 (WGS84)
• European Datum 1950 (ED50)
• Federal Intstitute for cartography und geodesy, standard parameter
• Federal Intstitute for cartography und geodesy, Breiten >52,3 Grad N
• BAW C. Maushake,
• Krassovsky standard (Wikipedia)
• Krassovsky (WSA Stralsund)

Input-Files

1. triangulated mesh (file type TICAD,gitter05.dat/bin)
2. triangulated UNTRIM-VC mesh (file type untrim_grid.dat, version Vincenzo Casulli) or
3. triangulated UNTRIM-BAW mesh (file type untrim_grid.dat, BAW version) or
4. grid of the numerical method DELFT3D (file type delft3d.grd) or
5. file with soundings (file type geom.dat) or
6. position description (file type geopos.dat) or
7. digitized polylines (file type insel.dat) or
8. digitized polylines (file type digi.gkk) or
9. polygon file (file type poly.dat) or
10. time series at single station (file type boewrt.dat) or
11. polygone file to protect edges of a grid (file type nodes.save) oder
12. plot frames (file type frames.dat, center and size, or
13. description of boundary cells (file type rgz.dat).

Output-Files

1. triangulated mesh (file type TICAD,gitter05.dat/bin) or
2. triangulated UNTRIM-VC mesh (file type untrim_grid.dat, version Vincenzo Casulli) or
3. triangulated UNTRIM-BAW mesh (file type untrim_grid.dat, BAW version) or
4. grid of the numerical method DELFT3D (file type delft3d.grd) or
5. file with soundings (file type geom.dat) or
6. position description (file type geopos.dat) or
7. digitized polylines (file type insel.dat) or
8. digitized polylines (file type digi.gkk) or
9. polygon file (Dateityp poly.dat) or
10. time series at single station (file type boewrt.dat) or
11. polygone file to protect edges of a grid (file type nodes.save) oder
12. plot frames (file type frames.dat, center and size, or
13. description of boundary cells (file type rgz.dat).

Methodology

• Input and output list are opened at the same time. Every coordinate point will be read, transformed and written on the output list immediately. So the size of the input file is unlimited.
• The formatting of decimal coordinates depends on the actual projection of coordinates (geographic or map coordinates)
• The program first calculates spherical coordinates (WGS84) form input projected coordiantes. Then the new geodetic datum and projection is applied.
• To all ASCII formats which are not NAMELIST based, a file header with the current coordinate information is added as comments.

Program(s) to run before this Program

all programs wich use above file formats

Program(s) to run after this Program

all programs wich use above file formats

Additional Information

Language

Fortran90

Additional software

-

Original Version

G. Seiß (main program, file I/O)

Maintenance

G. Seiß

Documentation/Literature

interactive dialog, self explaining

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