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ALLTRANS 2.32 - User Guide and FAQ

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Parameter

Datum Shift
Here you can select the 7-Parameter set for the datum shift (Bursa-Wolf-Model). Furthermore, you can enter your own parameter set, delete or edit an existing parameter set. If you want to perform a transformation without datum shift, you have to select the Null-parameter set (Default). It is not possible to edit or delete this parameter set.

Geoid model
Here you can select the geoid model and if necessary the directory to the database of the geoid model.
Calculation: H_ortho = H_ell - Geoid-Undulation - Height-Shift.

Ellipsoid-Parameter
Here you can select or enter the ellipsoid for a user defined ellipsoid.

Data Format
Here you can select the data format of the coordinates. The following data formats are possible:

GK-Coordinates / UTM-Coordinates:

Easting, Northing
Northing, Easting
Easting, Northing, ellipsoidal Height
Northing, Easting, ellipsoidal Height
Name, Easting, Northing
Name, Northing, Rechtswert
Name, Easting, Northing, ellipsoidal Height
Name, Northing, Easting, ellipsoidal Height

geographical Coordinates (decimal and DMS):

Latitude, Longitude
Longitude, Latitude
Latitude, Longitude, ellipsoidal Height
Longitude, Latitude, ellipsoidal Height
Name, Latitude, Longitude
Name, Longitude, Latitude
Name, Latitude, Longitude, ellipsoidal Height
Name, Longitude, Latitude, ellipsoidal Height

3D-Cartesian Coordinates

X-Value, Y-Value, Z-Value
Name, X-Value, Y-Value, Z-Value

UTM - Parameter
Here you can edit the parameter of UTM. Here you can specify that the transformation will be performed with the automatic calculation of the central (Default). If you want to do the transformation in a fixed system, you can enter the zone number of the UTM-system. Often UTM-coordinates are used with the zone code added to the Eastings, so there is a checkbox where you can select this feature. There is also a checkbox to enable UTM for the southern hemisphere.

Geodetic System
Here you can see the parameter of the current Geodetic System.

Calculation

Calculate Shift-Parameter

Here you can calculate shift parameter (3P of the Molodensky-Model or 7P of the Bursa-Wolf-Model) using identical points in start- and target-system.

Steps of calculation:

1. Select files of identical points
First you have to select the files with the identical in start- and target-system. The type of coordinates must be 3d-cartesian (XYZ). The identifier for identical points is the name of the point.

2. Select the identical points and weights
In the next step you can select the desired identical points and do the weighting for the adjustment. If you want to exclude a point from the adjustment, you have to enter 0.0 for the weight.

3. Parameter of adjustment
Here you can choose the method of the adjustment, so a standard-L2-adjustment or adjustment with automatically re-weighting. Also you can switch on a test for outliers.

4. Result
The result of the adjustment is stored in a result file. Is the result ok you can store the parameter set in the 7P-database.

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