We are the German distributor of Magellan GIS products. We sold a MobileMapper6 with DigiTerra software to a German customer.
The German customer (is on CC) wants to use that device in Austria.
The user choose Austrian Grid MGI 31 and imported a DXF file. The dxf file with the coordinates are exact as they were checked with a High end GPS surveying system. On the Digiterra Software the GPS position is several hundred meters away from the drawing.
We checked the parameters and saw that you are using different ones as the surveying world. The parameter form a surveying solution are:
Dx 586 Dy 89 dz 468 rx 5.1 ry 1.4 rz5.4 and a scale of +1.1
Look at the following flash tutorial to learn how to change and customize the selected projection in DigiTerra Explorer 5
Please note, that the software will save the customized parameters to the Windows Registry. In case you want to use the modified parameters on different devices please apply the above parameters in the Grid.txt file. You can find the mentioned file in the \BIN path of the SD card (or in the "c:\Program Files\DigiTerra Explorer v5\Grid.txt" path on the Desktop version.).
A "manual" way of editing the appropriate projection in Grid.txt
1. Open Grid.txt in your text editor (eg. Notepad)!
2. Based on the header of the Grid.txt you can edit the necessary parameters in line 2711 (or you can create your own projection in a new line):
Code: Select all
Region Country Grid Datum Algorithm FalseEasting FalseNorthing LongitudeOfOrigin LatitudeOfOrigin GridScale Angle1 Angle2 SemiMajorAxis InverseFlattening DeltaX DeltaY DeltaZ RotX RotY RotZ DatumScale
3. Finally save the file and restart the software.