The Overlay layer has a range of special options that are accessed by RMC on the overlay title in the tree view (Figure 1). These options are summarized in the Table 1.
Figure 1. Overlay layer: RMC options.
Table 1. RMC options for overlay layer.
| Option | Description |
|---|---|
| Properties | Set properties of the selected layer (described in detail below) |
| Zoom to Layer | Zoom the view to the selected layer |
| Save As | Export the overlay layer to an external file |
| Remove | Delete the selected layer |
| Create New Spline Layer | Create a new spline layer in the layer control panel |
| Create New Overlay Layer | Create a new overlay layer in the layer control panel |
| Turn All Layers Off | Hide all existing layers in the layer control panel |
| Turn All Layers On | Display all existing layers in the layer control panel |
Overlay Properties
RMC on the overlay layer, then select Properties, and the Overlay Properties will be displayed, as shown in Figure 2. The options here include:
- Layer Name: show the name of the layer, a new name can be entered here
- Visible: unchecking this box will hide the overlay layer (the light bulb of the layer in the Control Panel is also turned off)
- Show in
- Selectable
- Editable
- Show Lines: unchecking this box will hide the spline lines
- Line Settings: allows the changing of setting style, color, and thickness of the spline lines.
Figure 2. Overlay: Line Style.
Figure 3. Overlay: Data Points.
Figure 4. Overlay: Labels.
Figure 5. Overlay: Distance Labeling.
Save As
The Export Control Points to option allows the saving of the spline to a file. Once selecting the Export Control Points to option, the Save As form will be displayed, as shown in Figure 5. Define the file type (*.spl is the default extension for spline) then enter a file name. Define the folder location to locate the file then click the Save button.
Figure 5. Export overlay to file.