Horizontal Cogo Compound Spiral

 

The Horizontal Cogo Editor is used to enter the horizontal geometry There are 4 types of horizontal cogo entries. Straight, Curve, Spiral, and Compound Spiral. Entered values display in black. Interpolated values display in red.

 

Video Links: Entering Spiral Curves

 

 

 

Station Start

The station number at the beginning of the current spiral segment.

 

 

Northing

The northing coordinate of the beginning of the current spiral segment.

 

 

Easting

The easting coordinate of the beginning of the current spiral segment.

 

 

Spiral Length

Length of the current spiral segment.

 

 

Start Radius

Radius of the curve entering the compound spiral segment.

 

 

End Radius

Radius of the curve segment exiting the compound spiral segment.

 

 

Station End

The station number of the end of the current curve segment.

 

 

Northing

The northing coordinate of the end of the current curve segment.

 

 

Easting

The easting coordinate of the end of the current curve segment.

 

 

Direction

Controls the direction of the compound spiral segment.

 

 

Bearing

The bearing (direction) of the segment entering the compound spiral segment.