Use the Vertical Distance command to determine the elevation difference between two points in the survey database.
Survey Command Window.
Vertical Distance.
Survey Command Window. VDIST [point 1] [point 2]
The following example shows a valid entry using the Vertical Distance command:
NEZ 1 100 100 30.480
NEZ 2 200 200 33.528
VD 1 2
Vertical distance 3.048
This example determines the vertical distance from point 1 to point 2. A positive value indicates that point 2 is higher than point 1.