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Topo Survey (Optical)
To collect points with the total station by measuring locations on the survey site and storing points at the user's command.
Topo Survey offers different options and methods of point collection. The optical topo survey can be conducted in Sideshot mode, Traverse mode, and various Offset modes.
- Sideshot mode supports measurements to single points from a fixed TS occupation position. This mode is set by default when starting a topo survey.
- Traverse mode assumes that the TS occupation position will automatically change to the previous foresight point and the backsight point will automatically change to the previous occupation point. The Backsight dialog will automatically open to update for the next occupation point.
- Various Offset modes support collection of some inaccessible points by measuring accessible locations or using special techniques. See details on offset modes available in the Topo Survey (Optical).
Set Sideshot, Traverse, or choose a specific Offset mode in the dialog menu - click
and choose the desired mode from the Measure sub-menu.
Note: Offset modes are unavailable if the Direct/Reverse measurement method is selected.
Both Sideshot and Traverse modes support measurements using a total station in direct position only and measurement sets when total station is used in both direct and reverse position.
- Direct - the measurement to a single point is taken using the direct position of the total station.
- Direct/Reverse - the measurement to a single point is taken using one direct and one reverse measurement (i.e., plunge - flip and rotate the total station by 180 degrees to get the reverse measurement). These two measurements constitute a measurement set. This measurement method is used to eliminate the vertical circle centering errors.
Set up the measurement method in the Survey Settings dialog. This dialog is a part of the Optical configuration wizard. It's possible to change the measurement method in the topo survey by clicking
in the dialog's title bar. The dialog title will change according to the selection:
- Sideshot-Direct;
- Sideshot-Direct/Reverse;
- Traverse-Direct;
- Traverse-Direct/Reverse.
Use the view selector in the dialog title bar to switch between Normal view and Map view at any time:
- Normal view - provides supervising of measured locations, offers on-screen guidance for operating the total station, and contains measurement saving tools.
- Map view - shows the measurement process in real time on the map and contains measurement saving tools including buttons with quick codes.
- When surveying in the Direct/Reverse mode, an additional view is available:
Meas Set view - shows the detailed data of performed measurement set, and offers options to accept or redo this measurement set. This view is accessible at any time but also opens automatically after completion of each direct / reverse measurement set. More...
Taking measurements is possible in both dialog views, Normal view and Map view. More...
Switch to the Normal view to set up, review and modify collected points data before or during the topo survey.
- The Point field displays the name of the next collected point. Enter a point name manually or keep an automatically incremented name offered according to point naming settings.
- Set a code and attribute information for the point:
- Select an existing Code from the drop-down list. You can manually type a code name. If there is no code with such name, the Code dialog will open when saving. There you can quickly create a new code with entered name.
- If the code type is Line or Area, the respective icon indicates that the point belongs to a line or area. Set a Code String and, if required, select an available Control Code (single or dual) from the drop-down list.
- Click the Code
button to access more code and attribute parameters in the Point Attributes dialog.
Note: Next point collected in this survey session will have the code of the previous point if the Codes box was checked in the Persistence tab of the Code Options dialog. The user can manually enter a new code or remove currently used code for the next point at any time.
- In the Note field, enter a description for the next collected point.
- Enter the height of the target. Type the value manually or click the button with current target icon to select one of the previously used values from the context menu. Select Edit from the context menu to open the Targets dialog to add or modify target configurations. Depending on the selected target type, the target icon looks like:
-
when a normal prism is selected, prism constant also displays below;
-
when a 360 prism is selected, prism constant also displays below;
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when a sheet is selected, target offset also displays below;
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when a non-prism is selected, target offset also displays below;
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when a long non-prism is selected, target offset also displays below.
- Depending on the TS type and model, the information about current measurement is displayed along with short description of currently performed action:
- HA - current value of the horizontal angle;
- VA - current value of the vertical angle;
- SD - current value of the slope distance.
Note: Displayed HA / VA /SD values can be changed to calculated coordinate values of the currently measured point. Click
and select Setup - Display Coords. Activated mode is marked with
.
Switch to the Map view at any time to visually overview the occupation position, the positions of possible reference objects, and the current target location. Tools available in the Map view:
- Status and Tools panels at the top;
- Topo panel at the bottom;
- Map View Tools at the right side.
- Context menu displayed on a long tap (right-click) in empty space of the map:
- Find me here - forces the connected robotic total station to turn and search for a prism in the direction from where this command was called.
- Set Simulator Here - "moves" you to the point on the map where the menu was called. Only displayed if the simulation mode was selected in the configuration.
- Move Profile View Here - centers the Profile View semitransparent overlay panel on the screen where the menu was called. Long tap (right click) on the top of the overlay panel and use the local context menu to increase / decrease the visible size of the panel. Only displayed if Profile View was selected in Map Properties dialog.
- Create Field Report - opens the Field Report dialog.
- Reverse Direction - reverses the direction (swaps start and end points) of the currently selected linework.
- Configurable Data fields - to display values of desired parameters during topo survey. The Map view has six customizable data fields
in the bottom part of the screen. To set up or change the data displayed in such field, tap or click on the field to open the Select Value to display dialog and select the required item from a list of all available parameters for the current survey mode.
To avoid cluttering of the elements displayed on the map at the current zoom level, they are combined. Closely positioned points are displayed as a single point with a bracketed number of hidden points next to its name: for example, P001{5}, where 5 is the number of hidden (not displayed) points. If there are more than 99 cluttered points, they will be displayed as {99+}. Hidden elements become visible with the further zoom in.
Note: When measuring lines or areas with points having code of Line or Area type, you may need to extend an existing line or area. As a rule, you have a common code and an individual numeric code string assigned to each of them. To extend a line or area, simply click it - this will instruct MAGNET Field that the selected line or area should be extended with the point you are going to measure next. You can identify your selection: the code and code string in the topo panel at the bottom will be adjusted to the selected object automatically.
The selected line will be extended depending on the side the line is clicked.
The Map view is required to use overlay buttons with quick codes to collect field data and save a point with assigned code or codes by single tap or click.
Quick code buttons with assigned code of Line or Area type feature their own context menu available on right click (long tap). This menu allows the user to quickly add the desired control code to the point. If a numeric code string is assigned to the code on the quick code button, this menu is also useful to quickly increase or decrease the code string number and switch to another line / area in a simple way rather than having to type in the number.
For more information on the available controls and TS statuses, see the Status and Tools Panels (Optical survey) and Topo Panel (Optical survey).
Click
to open the Survey settings dialog.
Click the
button to quickly access TS functions and parameters that are frequently used and changed during survey. More...
Click
to open the dialog menu with additional options. More...
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