To Create an Observation by Deflection Angle and Distance

Use the deflection distance (DD) command to quickly create a point using a deflection angle and distance from an established line.

The term deflection angle refers to the angular direction turned from the extension of the previous course. Additionally, you can also use a vertical angle or vertical distance to locate the point.

Note: For parameter descriptions, see the Quick Reference tab.

To create an observation using deflection angle and distance, using the command language

1. In Toolspace, on the Survey tab, right-click the network that you want to add points to, and click Survey Command Window.
2. At the Command line, enter:

   DD (point) [angle] [distance] (description)

To create an observation using deflection angle, distance, and vertical angle, using the command language

1. In Toolspace, on the Survey tab, right-click the network that you want to add points to, and click Survey Command Window.
2. At the Command line, enter:

   DD VA (point) [angle] [distance] [vertical angle] (description)

To create an observation using deflection angle, distance, and vertical distance, using the command language

1. In Toolspace, on the Survey tab, right-click the network that you want to add points to, and click Survey Command Window.
2. At the Command line, enter:

   DD VD (point) [angle] [distance] [vertical distance] (description)

Examples

The following example illustrates using the deflection distance command.

NE 1 100 100

STN 1

AZ 1 2 100

BS 2

DD 3 85.2657 60.960

! AZIMUTH: 385.2657 DISTANCE: 60.9600

! POINT 3 NORTH: 159.3345 EAST: 86.0167

! ELEV: <Null>

Points created using the DD command:

Point 3 is located by turning a deflected angle of 85.2657 right from the extension of the backsight line at a distance of 200. Angles and distances are in the current units, unless you type a qualifying suffix.