VO CovarPointContours
Define the display of covariance pointing contours
Syntax
VO <VehObjectPath> CovarPointContours {CovarOption} <Parameters>
Description
The VO CovarPointContours command enables you to define the display of directional uncertainty contours from the current object to the selected ToObject. The contours created take into account positional uncertainties of the two objects. These uncertainties are assumed uncorrelated, so that the combined uncertainty is represented by the sum of the positional covariances of the two objects. The resulting covariance defines a 3D ellipsoid, which is viewed from the current object location to create a directional uncertainty contour. Use the {CovarOptions} to define the display attributes for 3D Covariance Pointing contours.
All {CovarOptions} available using the VO Covariance command are valid for this command. In addition to the standard {CovarOptions}, the chart below summarizes additional options available using this command only.
| {CovarOption} | <Parameters> | Description |
|---|---|---|
| ToObject | <TruncObjectPath> | The vehicle object that will be used to characterize pointing uncertainty. |
| Size | ScaleToAttSphere | Scale the distance at which the contour is drawn. |
| <ScaleValue> | ||
| ShowCone | {On | Off} | If On, the cone is created by connecting to the center of the current object with the contour. The size of this cone (i.e. the distance at which the contour is shown) can be changed and optionally set to the size of the attitude sphere using the size options outlined above. |
Examples
To use the attSat satellite object in the current scenario to characterize uncertainty:
To set the size of the contour drawn relative to the size of the attitude sphere:
To specify the size of the contour:
To scale scale the contour directly:
To size the covariance contour by specifying the probability value:
To turn on the use of covariance graphics and assign graphics attributes.
To turn on the use of time intervals during which covariance graphics will display:
To set the default attributes that will be assigned to display intervals:
To remove all dispay intervals and turn interval graphics off:
To load a list of display intervals from an external interval list file (*.int):
To add a list of display intervals from an interval list time component:
To add two display intervals:
To remove the display interval specified here:
To replace the display of the existing contours with the display times here:
To add two display intervals with color and line width specified:
Return message
Group membership
This command belongs to the following group(s):
Version
10