For your convenience, the 1D, 2D and 3D files on the Sample Files page can be loaded into a test project.
Alternatively, go to the Adjust File page, and select a sample file from the Select Sample File drop-down list. The adjustment will start immediately.
Columbus is organized into five pages:
There are three ways to import data into Columbus:
Note: Latitude and longitude must always be provided in DMS (degree, minute, second) units. For example:
N 40-10-15.123456 must be entered as: 40.1015123456
S 40-10-15.123456 must be entered as: -40.1015123456 (negative)
E 105-3040111111 must be entered as: 105.3040111111
W 105-3040111111 must be entered as: -105.3040111111 (negative)
There are two ways to perform network adjustments within Columbus, each with its own advantages:
This method uses data that has been imported into Columbus or loaded from a current project. Prior to adjustment, you can modify preference settings on the Preferences page and define the network type on the Adjust page. After adjustment, you will have the opportunity to save the adjusted coordinates and all preference settings into a file for future retrieval.
This method assumes you have created a network adjustment data file. When you select the file, the adjustment immediately runs and reports the results.
Note: These results cannot be used anywhere else within Columbus.
Everything that defines the adjustment (datum, stations, observations and configuration settings) must be defined in the file. If you don't modify this file, each adjustment (from this file) will yield identical results.
This is where you can perform a variety of tasks, including Geoid and Deflection Modeling, Traversing, Inversing and more...
Preference settings are applied when running adjustments, traverses, inverses, etc.