Export of roads graph to GDF format

The given program is intended for export of the vector map containing the graph of roads to GDF format.

The operating procedure with the program:

1.         To start the program, in the appeared dialog as initial data in a field «Source map» to choose the necessary map containing the graph of roads from the list.

2.         To set a name of a target map (by default a name of GDF map is the same, as well as at the source map).

By default the map is saved as GDF of specification 3.0. Difference GDF 3.0 from 4.0 consists in structure of a target file.

3.         To press Execute button for starting process of formation of GDF file.

During work the information on total of objects, about successful and unsuccessfully created objects, quantity of erroneous codes of objects is given to the user.