NOTE: This option is only recommended if the basis of your area is a georeferenced sheet.
The usual way is to align an area to a 3D model, see Align an Area to a 3D Model. Visually, you will align the sheet on which the area is based to the 3D model. In the alignment tool, you must also select a sheet.
Open the Alignment Tool
1. Go to the 3D Model tab of the project structure view.
2. Click the three-dots icon 
of the 3D model to open the context menu.
3. Select menu entry Align 
.
The alignment tool is displayed.
4. Select the sheet to which you want to align the 3D model.
5. Click Align in the top right corner to open the alignment tool.
Set the Elevation
The sheet elevation is fixed and displayed in the Sheet elevation field.
Enter a matching elevation in the Matching model elevation field or pick an elevation.
Perform Horizontal Alignment
The horizontal alignment can be determined using either point pairs, or an overlay mode. You can also use both methods in the order described below.
Note that the 3D model is displayed in a top view 2D mode.
For a better visibility, you can zoom in and out with the mouse wheel.
Method 1: Point Pairs in Area and 3D Model
By default, the area and the 3D model are displayed in a vertical screen. If you feel more comfortable in a horizontal split screen, you can click icon 
on the right middle side of the screen, see also figure below.
1. Click a location in the 3D model, for example a corner.
2. Then find and click the same location in the area.
You can move a marker by clicking and then dragging it.
3. If the area is rotated with respect to the 3D model, repeat steps above a second time to lock the rotation.
To remove a marker, right-click it.
By default, the reference element is displayed with a cross section at the defined elevation. To deactivate the cross section and show the full reference element in a tomographic view, click the 
icon.
Method 2: Overlay 3D Model and Area
1. In the top right of the screen, click the Overlay button.
You can preview the result of the point-pair alignment described above using the overlay mode.
You can also refine the alignment in the overlay mode as follows:
2. Click the 3D model to set an anchor point.
3. Click and drag that anchor point to move the 3D model around.
4. Click and drag away from the anchor point to rotate the 3D model.
You can zoom in and out using the mouse wheel to check the alignment.
To remove an anchor point, right-click it.
Confirm Alignment
Once the alignment meets your expectations, click the Confirm Alignment button.
The 3D model is now aligned to the area and you are redirected to the Sphere XGViewer.