On the installation disk there are a
variety of different least squares projects one can use to become
familiar with least squares and SurvNet. These projects are located
in the SurvNetExamples folder under the Carlson Projects folder
(C:\Carlson Projects\SurvNetExamples).
When
you open a project for review, you will need to check the project
settings, input data files to see if the paths are correct. If they
do not, you will have to re-select them.
This project is located in \Carlson Projects\SurvNetExamples\2DTraverse. The name of the project is Traverse. This project illustrated a basic loop traverse with two control points and a known azimuth for control. This project also illustrates how to obtain traditional closure information as part of the least squares report. The program uses the 2D/1D model and uses a local coordinate system.
This project is located in \Carlson Projects\SurvNetExamples\SPCTraverse. The name of the project is Trav01SPCUSFt. This project illustrated a basic network with three GPS control points for control. This project is computed using the SPC83 NC Grid coordinate system. The project is set up to generate traditional loop closure data. The program uses the 2D/1D model. No elevations are computed or adjusted as there were no HI's or rod readings collected. Notice, that the project uses two raw data files. One file contains the raw angle & distance data. The other raw data file contains the control for the project.
The ALTA reporting project is located in \Carlson Projects\SurvNetExamples\ALTARpt. The name of the project is ALTARpt. This project illustrates how to perform ALTA tolerance testing on points within a network.
The GPS network project is located in \Carlson Projects\SurvNetExamples\GPSNetwork. The name of the project is GPSOnly. This project is a simple GPS network. In addition to the least squares computation and report, GPS loop closures were generated for various GPS loops for this project.
The differential leveling project is located in \Carlson Projects\SurvNetExamples\LevelNetwork. The name of the project is network1. This project is a simple differential leveling network.
The basic 3D adjustment project is located in \Carlson Projects\SurvNetExamples\3DNetwork. The name of the project is pg08. This project is a simple four point example network. Notice in the raw data that all set up records have an HI and all FS readings have valid rod heights. Also note that there are valid vertical angles for every slope distance. Since the 3D model is a true one process 3 dimensional adjustment, you must enter all valid slope distances and vertical angles. Be aware that you cannot just enter a horizontal distance and a vertical angle of 90 from reduced field notes when adjusting using the 3D model.
The total station raw data combined with GPS vectors example is located in \Carlson Projects\SurvNetExamples\GPSandTtlSta. The name of the project is GPSandTS. This project illustrates a 3D model adjustment that combines both GPS vectors and data from a total station. Since there is GPS data the 3D model must be used. Notice that the GPS vectors are in meters but the total station data is in US feet and the output coordinates are in US feet. Always make sure your units are correct for each data type especially when using the 3D model.
The total station
raw data combined with GPS vectors example is located in \Carlson
Projects\SurvNetExamples\Resection. The name of the project is
ResectRaw. This project illustrates an angle and distance
resection. There is no real difference in a resection project than
any other angle and distance network in terms of how the data is
collected or how the project is set up.