We call Levelling Vector as observed height difference between two points, as distinct to traverse, where observed value is the sum of height differences in traverse.

Levelling Vector Adjustment Editor is designed to edit leveling network data, coming from the Field Data Editor or from manual input and launching least square adjustment routine. Besides this main function, the Levelling Vector Adjustment Editor does the following:

• Checking up up data according to the rules of the levelling data presentation,
  
• Calculating gravitational corrections into height differences,
  
• Calculating preliminary elevations of the unknown points
  
• Creation and printing adjustment reports in ASCII and Quick Report Format.
  
• Transforming current network into traverse network and launching the Traverse Levelling Editor