Range Contours
A range contour is a circle comprised of points at a given distance from an object and at the same altitude as that object. Although the type of contour graphics available will depend on the object selected, the options for managing contour levels are the same.
If the Show option is checked, contour graphics display in the 2D Graphics window.
To change how contours are displayed, select Fill. Use the % Translucency text field or slide control to set the translucency of the filled area. Translucency can be adjusted from 0 to 100 percent, where 100 percent is invisible.
The following sections outline how to add, remove, and define the display of contour levels.
Add Levels
- Enable the Show option.
- To display the range contours as a filled polygon on the surface of the central body, select Fill. Use the % Translucency slide control to set the translucency of the filled area. Translucency can be adjusted from 0 to 100 percent, where 100 percent is invisible. (The Fill option is only available for the 2D Graphics window. It is not supported for the 3D Graphics window.)
- Use the Number of Decimal Digits option to set the number of decimal places that will be displayed in the 2D and 3D Graphics windows.
- Select an Add Method.
- Enter the appropriate values in the Level Adding area.
- Click Add Levels. The level will be added to the Level list in the Level Attributes area.
- Define the Level Attributes.
- Click OK or Apply to display the levels in the 2D Graphics window.
Add Method
Use the Add Method option to select the way that level values will be defined.
| Method | Description |
|---|---|
| Start, Stop, Step | Enter a Start value, a Stop value, and a Step value. Generate contours beginning with the Start value and incrementing by the Step value until the Stop value is exceeded. |
| Explicit | Define individual contour levels by enter the contour level in the Level field. |
Define the Display of Levels
Use the options in the Level Attributes area to define the display of a selected contour level. To define display attributes, select the level of interest in the list and set the following options:
| Attribute | Description |
|---|---|
| Color | Color of the line used to represent a selected contour level. |
| Line Style | Style of the line used to represent a selected contour level in the 2D Graphics and 3D Graphics windows. |
| Line Width | Width of the line used to represent a selected contour level. |
| ShowLabel | Displays the distance as part of the label. |
| Show Text | Displays the text entered in the UserText field as part of the label. |
| UserText | Enter the text you want to display as part of the label. |
| LabelAngle | Enter a value for the label angle display. |
Removing Levels
To remove a single contour level, select a contour listed in the Level list and click Remove.
To remove all contour levels, click Remove All.