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Surface Volume
In the Input tab you can perform volume calculations:
- In the Design field, select the Surface on which you want the volume calculations to be performed. Either manually enter the name of an existing Surface in the edit field or press the List selection button and choose the Surface from the list. When the Surface selection changes an information message will display the maximum and minimum Northing and Easting values for the area covered by the Surface.
- From the Boundary drop-down menu, select one of six options for volumes calculations.
- Min Elevation: the plane of projection of the final Surface will be defined as a flat plane at a minimum elevation.
- Max Elevation: the plane of projection of the final Surface will be defined as a flat plane at a maximum elevation.
- Boundary: the plot will display only the final Surface. The plane of projection of the final Surface will be defined as a flat plane at a fixed elevation of zero.
- Fixed Elevation: the plot will display only the final Surface. The plane of projection of the final Surface will be defined as a flat plane at a fixed elevation. Either manually enter the fixed elevation in the edit field or press the Map or the List selection button to select a point in the job whose elevation will be used as the fixed elevation. After the point selection dialog has closed the edit field will display the elevation of the selected point.
- Plane: the plane of projection of the final Surface will be defined by three separate points. Either manually enter the names of the three points in the edit fields or use the associated Map and List selection buttons to select these points from the job.
- Original Surface: select another existing Surface. Either manually enter the name of the second Surface or press the List selection button and choose the Surface from the list. The plots will display both of the Surface selected.
- Press the Calc button to calculate the cut and fill volumes and projected areas of a Surface to another Surface or a plane of projection.
When a successful Surface calculation has been performed the Results tab will display the calculation data. A warning message displays if any of the fields is empty or contains a name that does not exist.
Select Surface
To select an existing surface from the list:
- Highlight the name of the surface you want to select.
- Click
to select it.
Surface Information
The dialog displays maximal and minimal values for North / East / Elevation axis for the selected surface.
Create Surface
Create Surface allows you to create a surface by selecting points from the job, existing point lists, existing areas, existing linework. Surface is a three-dimensional display of transformed elevation data. Surface describes the topographic surface with a network of digitized points, lines and areas.
There are the following rules for creating a surface:
- An existing linework will be used as break line only.
- the picture displays a surface and a line between A and B points which is not included in the surface:

- the picture displays a surface and a line between A and B points which is included in the surface. Any surface triangles do not cross the linework:
- An existing area will be used to constrain the surface. When you add an area in the surface, the software can create a surface inside of the area only:
When you add an exclusion area in the surface, the software can create a surface outside of the area only:
To create a Surface
- In the Points/Point List/Linework/Area field, select the current method of selection of data required to create the Surface.
- The list will display the points currently selected, and the plot will display the created Surface.
- To obtain information about a single point highlighted in the list, click
.
- Click Save to save the Surface created from the selected points / lines / area. More...
- When a valid Surface has been created, the Results tab displays the results updated dynamically as you alter the data.
- The Map tab shows the job's objects with the illustration of the created Surface as the points connected with triangulation lines and supports generation of a field report with the results of calculation (use the Create Field Report command from the context menu).
- The Drawing tab shows the created Surface as the points connected with triangulation lines and supports generation of a field report with the results of calculation (use the Create Field Report command from the context menu).
- A warning message displays if less than three or no points have been selected, or there are not enough points to create a Surface since several have been excluded because their code was flagged as not to be used in a Surface or they are in-computable in the current system.
To edit the Surface
- To view a point on the plot, highlight the point in the list.
- To see a Map view of the current Surface, double-click in the plot window.
- To delete any point from the Surface:
- Highlight the point in the list.
- Click the Delete button. The Surface will be updated.
- To alter the boundary of the currently selected Surface:
- Select the Custom Boundary check box.
- Press the Edit Boundary button. Find out more...
MAGNET Field general buttons and icons are described here...
Input new Surface name
In this dialog you can enter a name of the new surface. The surface will be saved in the job database.
General Icons
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The Delete button is used to delete the selected points in the point list. |
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The Info button is used to display information on a single point highlighted in the list. |
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The Plot button is used to hide the plot window. |
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The Plot button is used to show the plot window. |
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Opens the list of points. |
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Opens a map. |
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Confirms settings, closes the dialog, and returns to the previous dialog. |
Editing Boundary
The boundary selection dialog contains a list of points, which bound the Surface, the general plot of the Surface with the boundary in red.
To edit the boundary:
- If required, move points up and down the list to change the order of the boundary. The Surface will be updated to reflect the changes to the point order.
- To delete a point from the boundary, highlight the point in the list and click the red minus icon. The Surface will be updated.
- Use the Map or List selection button to select points from all of the points in the Surface to add to the boundary.
Note: When you select a point in the boundary Map selection dialog the point is added between the end points of the segment which is closest to the selected point. After each selection the Surface gets updated to show your selection. When you return to the Edit Boundary dialog the point list gets updated to the order of the boundary in the map.
Find out description of the icons on the dialog here...
Contour Surface
This dialog allows you to contour an existing surface. Contouring Surface is a method of transforming elevation data into a contoured surface, representing data along the contour lines.
To create the contours on the Surface:
-
Select the surface by either of the following ways:
- click
to select it from the map,
- click
to select an existing surface from the list, or
- enter the name of an existing surface manually.
The plot window will display the currently selected Surface.
- Press the Next button to set the parameters required for contouring the Surface.
- Enter an Contour Interval between the contour lines in the edit field as required. The Contour line interval must be greater than 0.001m. The difference between the start and end elevations is divided by the interval to get the number of contour lines.
- The Start Elevation edit field initially shows the lowest elevation in the selected Surface. If required, you can enter a different value.
- The End Elevation edit field initially shows the highest elevation in the selected Surface. If required, you can enter a different value.
- To delete the previous contour of the given surface, click the Delete Existing Contours button.
- Press the Save button to store the contoured Surface and generate the contour lines in the job. The lines will be added to the job as lines with the Surface name and an integer value starting at 1 which makes the line unique.
- The results of contouring are displayed on the Results tab.
- The Map tab shows the job's objects with the illustration of the Surface contour lines and supports generation of a field report with the results of calculation (use the Create Field Report command from the context menu).
- The Drawing tab shows the illustration of the Surface contour lines in red and supports generation of a field report with the results of calculation (use the Create Field Report command from the context menu).
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