Gauss Kruger Projection - Pathloss

1 Gauss Kruger ProjectionThe Gauss Kruger coordinate system isimplemented as a generalized TransverseMercator Projection . The specificparameters are set in the GeographicDefaults dialog box. Select Configure -Geographic defaults. Set the grid coordinatesystem to Gauss Kruger . The Gauss Kruger parameter definition button becomes active once the gridcoordinates selection is Origin (deg)The latitude origin is entered in decimal degrees and is positivein the northern hemisphere. This is usually zero which meansthat the equator is the Origin (deg)The longitude origin is entered in decimal degrees and ispositive in the eastern hemisphere.

2 Eastings are measured fromthe longitude origin which is also called the central meridian. In some Gauss Kruger implementations, the first digit in theeasting is referred to the zone number. The longitude origin isequal to the zone number multiplied by Easting (m)A false easting eliminates negative numbers by assigning asufficiently large positive number to the central meridian. Seethe specific tables below for common Northing (m)A false northing eliminates negative values in the same manneras the false easting. The false northing and latitude origin areusually set to zero which means that the northing will be thedistance from the factorThis is the scale factor along the central meridian and is usuallyequal to for Gauss Kruger projections.

3 The scale factor forthe Universal Transverse Mercator Projection is latitude and longitude origins can be entered as decimal degrees or as degrees minutes and secondswith a space separating the values. The Swedish Grid button sets the parameters to the Swedish grid coordinate the definitions are complete, close the dialog with the OK button. The parameters will be savedin a file named in the Pathloss program directory. All conversions between geographic andeasting - northings will use these - DatumIn addition to the specified Transverse Mercator parameters, the conversion between geographiccoordinates and easting - northings are based on the ellipsoid definition.

4 Both the Bessel andKrassovsky ellipsoids are used. Therefore, you must select an ellipsoid and check the Use Ellipsoidbutton in the Geographic defaults that there is no datum coorespondingto these two DatabaseThe Odyssey - Gauss Kruger terrain data base option has been implemented for this Projection . Thiscan be used with any terrain database with elevations arranged in west to east rows such as MSIP lanet. The Gauss Kruger definitions can also be set as part of the database configuration. This is sameas setting the parameters in the Geographic problem can occur when creating an index for a Gauss Kruger database from a text file.

5 The eastand west edges specification can include the zone number as the first digit of the value. The conversionprocess checks the value of the east and west edges. If the value is greater than 1000, the first digit isremoved. In most cases the results will be correct; however a value greater than 1000 could also be anactual parameters used for the Gauss Kruger Projection in Baden-Wuerttemberg are:spheroid Bessel 1841latitude longitude origin9 degrees E (zone 3)false easting (m) 3500000false northing factor Germany, there are 5 zones using the Gauss - Kruger / Transverse Mercator , , , , ,0000 Swedish Grid SystemThe Swedish grid system uses the following parametersspheroidBessel 1841latitude longitude origin15 48' " E ( degrees E)false easting (m) northing factor Slovakia the following projections are used.

6 Spheroid Krassovskylatitude longitude origin15 degrees Efalse easting (m) 3500000false northing factor Krassovskylatitude longitude origin21 degrees Efalse easting (m) 3500000false northing factor 1.