Dual coordinates

The GROMA system allows keeping two pairs of coordinates X and Y in the coordinate lists for each point. For example, you can have the coordinates for each point in both the main and local systems or generally in two different systems.

The second coordinate pair is stored on the list using the user information on the point (INFO1 and INFO2). The display mode (name, number of decimal places, etc.) can be set in the information on the file by the command File->Information about the file.

The program always considers the first listed coordinates as the active coordinates, the second pair is considered auxiliary. If you want to start to work with the second pair, it is necessary to replace the main coordinates with the auxiliary. This replacement can be done using the dialog window called by the command Coordinates->Dual coordinates.

The system contains other functions for the work with dual coordinates:

The description of the individual functions is in the Reference Manual.