Create Coordinate System from imported Control File

Import Control file step-by-step

1. Select Import & Delete from the Home screen/Admin Panel.
   All data that is already loaded to the active project is displayed.
2. Tap to import more data. 
   1. For general information on how to import data step-by-step see: Importing data to the project step-by-step
3. Select the type of data to import. Tap Control.
   (All files that are available for import are displayed on the right side) 
4. Tap next to the file to be imported. (The Import Settings View is displayed)
5. Define the content of each column by tapping the buttons. Ensure that Easting, Northing and Height as well as Latitude, Longitude and Ellipsoidal Height are assigned correctly to the relevant columns.
   
   1. The display jumps from one column to the next. The buttons turn grey and cannot be used a second time.
   2. Tap to erase your selection.
   3. Tap to undo your last action. 
6. Adapt the unit setting for latitude and longitude to the unit used in the file. (Only 'Degrees Minutes Seconds' (DD.MMSSSSSS) or Decimal Degrees are supported)
7. When all columns are defined tap .
8. Back in the Import Data page tap again to complete the data
   import. 

Inspect imported file
The imported file can be inspected before using it for coordinate system creation.

1.  Select Point List from the Map handler. (A list of available files is opened)
2. Tap the imported file in order to select it. The tap. (The Point List is displayed for the selected file)
   
3. Tap and hold one of the column headers, for example Northing. (The Point List Configuration page is displayed)
   
4. Define one block to show Latitude and Longitude. Select None for the third column.
   Define the Ellipsoidal Height in an extra block to prevent the Latitude/Longitude values from being cut off.
5. When all blocks are defined tap.
   1. For further information on how to use and configure point lists see:
      How to use Point List step-by-step

Create Coordinate System from File 

1. Open the Coordinate System app.
2. From the Coordinate System Menu, go to Small Area and tap on From file.
3. Select the Control file and tap the yellow button in the top right corner. For Large Area the workflow is the same, except that for Large Area a predefined coordinate system must be selected. The Map screen is then displayed showing the points that shall be used for the transformation.
4. Tap to view residuals for each measured point.
   1. Tap to deselect a point. 
   2. Heights can be turned On and Off altogether.
   3. Tap on individual Plane Residuals or Height Residuals to deselect single values.
   4. For a Small Area the scale can be set/locked to 1.000.
5. Tap Map at the bottom of the screen to return to the Map screen.
6. In the Map screen tap to save changes and create the Coordinate System.
   1. It is possible to cancel and store an unfinished localisation. In this case the unfinished localisation can be resumed the next time the Coordinate System application is started.
      
      
7. Confirm or enter a new name for the *.lok file and tap to save the file.