# Show Bearing Distance

The Show Bearing Distance function displays the bearing and distance between two points in the job.

Point 1
To select the starting point, click on a point on the screen, or enter the point number at the keyboard. Type in the point number and press ENTER, TAB or Down Arrow to move to the next field

Point 2
To select the ending point, click on a point on the screen, or enter the point number at the keyboard. Type in the point number and press ENTER or TAB to display the bearing and distance.

Centre
If the two points lie on a string arc segment, the centre point number will be automatically displayed here. You can enter a centre point, click a point on the screen or enter via the keybard. A string arc segment is a segment of a string defining a circular arc.

Bearing
The bearing from Point 1 to Point 2 is displayed in degrees, minutes and seconds DDD MM’ SS’ format.

Distance
The distance from Point 1 to Point 2 is displayed in metres. (Horizontal distance).

Vert Diff
This is the difference in heights between the two points as Pt2_height – Pt1_height. Thus a positive number means the line from point 1 to point 2 slopes upwards.

Slope
This is the slope of the line from point 1 to point 2. A positive slop means the line slopes upwards from point 1 to point 2.

If the two points line on a curve, the radius of the curve will be displayed here. A curve is defined as a curved string segment joining the two points.

Arc Dist
If the two points line on a curve, the arc distance of the curve joining the two points is shown here. A curve is defined as a curved string segment joining the two points.

Ground Dist
If the job is on a Datum this is the ground distance between Point1 and Point 2.
Note that the 'Distance' below the Bearing is the 'Grid Distance'.
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Forward Azimuth
Bearing from Point 1 to Point 2 when the job has a Datum

Reverse Azimuth
Bearing from Point 2 to Point 1 when the job has a Datum

True Mid Bearing
This is the average of the Forward and Reverse bearings

Average Height
The average of Point 1 height and Point 2 height, if specified.

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