====== Ground Control Points  ======

The goal of this exercise is to demonstrate to the user how to use and measure Ground Control Points and export its deviation table in Orbit. This exercise is a part of the adjustment procedure, the measured GCPs will be used further to adjust the data. 

  * Relevant for: 3DM Content Manager 


===== Preparations =====

=== Reference documentation ===

  * [[180:desktop_ext:ground_control_points|]]


=== Preceding Exercises ===  

  * [[exercises:desktop:manage_runs|]]

=== Resources ===

  * BE Gent\MMS Orbit Runs
  * BE Gent\Ground Control Points


===== Exercise =====
Add and measure ground control points, export deviation table. 
 
   - Open \\ the run BE Ghent by Topcon.
   - Open \\ the Ground Control Points extension.
   - Add \\ the ground control points file "gcp_4326".
   - Measure\\ the points one by one. Keep the default settings. Move to other images to fully visualize the manholes.
   - Export \\ the deviation table as "deviation_table.txt".


===== Results =====

{{  :exercises:desktop:gcp.png?nolink&900|  }}