3D-MC: Basic Training - File Menu (Control - Overview)

Introduction

The following information will cover the available options under the Control tab when using your Topcon 3D system. This information was created for software version 12.0.5.37 3D-MC and 12.0.7.15 3DMC Max.
Control Points are typically supplied by the engineer and are contained within the Project file (.pt3). 3D-MC requires a least one localized control point. The process of localizing control points is performed using the Grade management system (Pocket 3D) and then copied into the 3D-MC system.

To view the Control Points in the active Projects begin by touching the File tab then select the Control to see the available options.

In the Control Points screen all the Control points are displayed.
Horizontal and Vertical errors are displayed for each of the control points that were used for the localization.
If any of the localized horizontal or vertical errors are Red this indicates that the control is either bad or a problem occurred during the localization process and that control point should be re-localized.
The Grayed “Base Topcon” control point is a point that was not localized as no horizontal or vertical errors are displayed.
If the site is re-localized the new GC3 file or the entire project will need to be copied back into the control box.

Under the Coords tab the operator can select the type of coordinate system they will be working with.
Local cords only is when running the 3D system from a total station (LPS) and a GPS localization is not required.
GPS localization (GPS>Local) is used when running a 3D system with GPS.
Known projection/datum is used if the project is running on a projection.
Information for LPS and Projections will be covered in additional lessons.

The Add button would allow an operator to add additional Control points into the control file.
This may be used if a project doesn’t have any established control and the operator can add a point and do a single point localization directly from the machine.

After selecting the Add option form the Control points screen, the operator would enter the Local coordinates for the point being added.
The icon (outlined in red )allows the operator to select a point form a point file within the project as a Control point.
The Use for horizontal/vertical check boxes allow the operator to turn on or off the horizontal or vertical value of the control point.

The WGS84 tab is where the operator can localize the selected point.
The button (outlined in red) will perform the localization by taking a 3 second sot on the point. The Lat/Lon/Hgt values will be filled in with GPS coordinates and associated to the local coordinates manually entered.

After selecting the button (outlined in red in the previous slide) , the following screen allows the operator to select the type of antenna and the height of the antenna for the localization process.

After pressing the button (outlined in red) the system will take a 3 second shot and attach WGS84 coordinates to the control point