Ruler tool is used to measure the following magnitudes defined between two points:

ItemDescription
DistanceProjected distance on a horizontal plane. XY Distance.
Azimuth Angle between line defined by the two point and the North.
ElevationAngle formed by the difference elevation.
P1 MSLAltitude of Point 1 with respect to sea level.
P2 MSLAltitude of Point 2 with respect to sea level.
DifferenceDifference of altitude.

Ruler – Magnitudes

fig.164-mission-ruler-example

Ruler Example