Point Traverse

1. Standard Mode - A complete COGO solution. This command line style of program handles everything from simple direction and distance point creation to all types of intersections to full inversing of points.
2. Sideshot Mode - A scaled down point creation tool. By specifying a starting point and backsight point, points may be calculated by entering an angle right/left, a distance and optional offset. The point can be stored as a Sideshot or Traverse Point.

Inverse

1. Inverse Points - Find the direction, horizontal and slope distances, slope and coordinate differences between two points. Easily convert metric <-> imperial with a single key press, and calculate coordinates of any station and offset between the two points when you provide the station at either point.
2. Inverse Curve - Find all the curve elements by entering points at the beginning and end of the curve, the radius point and the direction of the curve. Coordinates of any station and offset along the curve can be calculated by providing the station at BC, EC or the PI of the curve.
3. Inverse Angle - Calculate the turned angle at a station by entering the station, backsight and foresight points. Distances to both backsight and foresight are also calculated.
4. Inverse Point to Line - Enter 2 points along a baseline and a offset point to calculate the offset distance perpendicular to the line, the distances along the baseline that offset point is perpendicular. Optionally create a point at the perpendicular intersection.
5. Inverse Point to Curve - Enter beginning of curve and end of curve points, a radius point and a offset point to calculate the offset distance perpendicular to the curve, the distances along the curve that offset point is perpendicular. Optionally create a point at the perpendicular intersection.
6. Inverse Point to Alignment - Choose a defined alignment and then enter point numbers to inverse that point to the design. Station, offset and cut/fill information is displayed. Only available in COGO+ Pro.

Intersections

Area by Points

1. Calculate the area of a polygon by entering the points along the perimeter. Curved and straight segments can be used.
2. Plot the area polygon on the screen.
3. Export a DXF file of the polygon.
4. Calculate pre-determined areas by sliding bearing and hinge point methods. Only available in COGO+ Pro.

Fit Points

1. Straight Line - Calculate the least squares line that best fits a series of points (linear regression). The direction (azimuth/bearing) of the line and its standard deviation, the Y-Intercept and its standard deviation, and correlation are calculated. Perpendicular offsets can be viewed for each point and the points can be shifted to fall on the line.
2. Circular Curve - Calculate the radius and the coordinates of the radius point of the least squares circle that best fits a series of points. When providing points along one or both tangents, the program will also solve the BC and/or EC point coordinates. It is possible to enter a radius for the curve that differs from the best-fit radius and recalculate a new least squares circle with the fixed parameter. Radial offsets can be viewed for each point, and the points can be shifted to fall on the curve.
3. Double Proportion - Enter the 4 points for the North, East, South and West section corners and the record measurements to the lost section corner to calculate the coordinates as per the Double Proportionate Measurement method (BLM).
4. Irregular Boundary - A combination of single proportion and compass rule is used to re-establish a lost corner as per the Irregular Boundary Adjustment method (BLM).
5. Grant Boundary - Calculate the positions of lost angle points as per the Grant Boundary Adjustment method (BLM).

Compass Rule

Rotate/Mirror

1. Rotate Points - Rotate a series of points around a specified base point by a entered or calculated angle.
2. Mirror Points - Mirror a series of points along a baseline as defined by two points.

Shift/Average

1. Shift by N/E/Z - Shift a series of points by entering northing/easting/elevation shift values.
2. Shift by Distance and Direction - Shift a series of points by entering distance and direction shift values.
3. Shift by From and To Points - Shift a series of points by entering two points to shift from/to.
4. Average Points - Compute the average coordinate values of a series of points.
5. 3D to Plan - Transform 3D point coordinates to 2D cross section points along a cut line as defined by two points.

Scale

Helmerts

Traverse Plus

1. Setups can be known station point and known backsight point, set arbitrary backsight azimuth from a known station point, or a resection. When more than three points are used in a resection, an iterative least squares adjustment method is used to calculate the best estimates for the station coordinates.
2. Stakeout and reference line/arc calculations (2D or 3D) can be performed from setup information. Stakeout can be to a alignment station and offset.

Levelling

1. Review/Export data in a fieldbook style layout.
2. Store calculated elevations to points in the COGO+ job database.
3. Calculate cuts/fills from any station in the Levelling job.
4. Adjust the level circuit or loop between fixed stations.

Alignments

1. Solve the 3D coordinates for any station and offset along the alignment once defined.
2. Create reports of the complete alignment at given station intervals.
3. Calculate coordinates for the entire alignment or portions of the alignment at a given station interval. Points are automatically stored in the COGO+ job database.

Inaccessible Point

Plot Points

Triangle Solver

Horizontal Curve Solver

1. Solve coordinates for any station and offset along the curve when additional information is given (coordinates and direction).
2. Includes 3-point curve solver.
3. Solve the radius and coordinates of the radius point of a curve through a fixed point and fixed tangents.
4. Includes a spiral curve solver with ability to solve coordinates for any station and offset along the SCS transition curve when additional information is given (coordinates and direction).

Vertical Curve Solver

1. Solve the elevation at any station on the vertical curve.
2. Solve the station(s) at a given elevation.
3. Solve the elevations for all stations at a given interval.

Bearing ←→ Azimuth Conversions

User Settings

Job Manager

Store New Point

Review Points

1. View the coordinates of a single point in the job.
2. View the coordinates of all points in the job or a range of points.
3. Browse a list of all the points in the job and select a point to view its coordinates.
4. Scroll through all the point coordinates.
5. Renumber points by specifying a new starting point number or an additive number.

Delete Points

Import/Export

1. Import comma, space or tab delimited ASCII files.
2. Export comma, space or tab delimited ASCII files, and choose the number of decimals.
3. Export DXF files of points in the job database to open directly in a CAD program.
4. Export KML files of points in the job database to view in Google Earth. Only available in COGO+ Pro.
5. Export Lat/Long delimited ASCII files. Only available in COGO+ Pro.
6. Import and Export Codelists.

Conversions

1. The convergence angle at the point and grid/elevation/combined scale factors are calculated along with the conversion.
2. Define your own custom projection and custom ellipsoid through the geodetic user settings.
3. Store solved grid coordinates as points in the COGO+ job database.

Ellipsoid Calculations