3D Graphics Properties for Attitude Figure Of Merit - Defining Animation Graphics
You can configure the display of animation graphics for an Attitude Figure of Merit object. Right-click the Attitude Figure of Merit object, select Properties, and select Animation under 3D Graphics. The definition of the Figure Of Merit is intrinsic in the display of the coverage graphics.
To turn off all Figure Of Merit graphics, check the Hide All Animation and Static Graphics box.
To display animation graphics for a Figure Of Merit, clear Hide All Animation and Static Graphics and check the Show Animation Graphics box.
Below are descriptions of options on the 3D Graphics Animation page for an Attitude Figure of Merit object.
Fill points
To display the grid points as filled polygons, check the Fill Points box. Use the % Translucency slide control to set the translucency of the filled area. You can adjust it to be from 0 to 100 percent, where 100 percent is invisible.
Accumulation
Select an option to control the sense and persistence of the animation graphics. Accumulation is only applicable to animation graphics and therefore is not available for figures of merit without animation behavior. The options are:
- Current time - When animating, grid points that currently meet the satisfaction criterion, based on the dynamic definition of the Figure Of Merit, are highlighted. This option is valid for both Satisfaction and Contours display metrics.
- Not current time - When animating, grid points that currently do not meet the satisfaction criterion are highlighted. This option is valid for Satisfaction display metrics only.
- Up to current time - When animating, this option highlights grid points that have met the satisfaction criterion at any time from the start time to the current time. This option is valid for both Satisfaction and Contours display metrics. However, this does not work for criterion set to Exactly.
- Not up to current time- When animating, this option highlights grid points that have not yet met the satisfaction criterion at any time from the start time to the current time. This option is valid for Satisfaction display metrics only. However, this does not work for criterion set to Exactly.
- The Up to Current and Not Up To Current accumulation settings result in very slow animations when using access constraint or dilution of precision figures of merit.
- The animation graphics Figure Of Merit options Number of Accesses and Number of Gaps behave in a nonstandard manner when the Accumulation option is set to Up to Current or Not Up to Current.
Display metric
Use one of the two Display Metric options below to set the animation graphics parameters for the Attitude Figure Of Merit object. Figure of merit graphics are easier to see if you disable the grid graphics for the Attitude Coverage object.
Show satisfaction
If selected, each point that currently meets the Satisfaction criterion is highlighted in the 2D and 3D Graphics windows. STK will use the specified Satisfaction criterion if you enable Show Satisfaction. Otherwise, it will use the default satisfaction criterion for Show Satisfaction disabled. Also, select the color of the highlighted points during animation.
Show contours
You can specify how STK displays levels of coverage quality in both the 2D and 3D Graphics windows.
To accurately display contour levels for figures of merit in the 2D and 3D Graphics window, you should know the approximate range of values for the current Figure Of Merit. You can use the Report & Graph Manager for the Figure Of Merit to determine this range.
Contour levels display the current Figure Of Merit value for each grid point as the scenario animates.
Defining contour levels for display in the 2D and 3D Graphics windows requires several steps:
1. Level Adding
Define the number and type of contour levels to be displayed. Select one of the methods below using Add Method and enter the information appropriate to that method.
| Method | Procedure |
|---|---|
| Start, Stop, Step | Enter a Start contour value, a Stop value, and a Step value. Displayed values begin with the Start value and increment by the Step specified until reaching or exceeding the Stop value. Click to generate the contour values list. |
| Explicit | Enter individual contour values one at a time. Click to add each new contour value to the list of existing contour values. |
2. Level Attributes
Set graphics attributes individually for each contour value.
| Attribute | Description |
|---|---|
| Color Method |
This defines the way the graphics will apply coloring to the contour values. Choose from the following:
|
| Start Color/End Color | These are the start and end colors for the spectrum, applicable only for the Color Ramp method. The Start Color corresponds to the first Level value under Level Attributes. |
| Do not show areas where FOM value exceeds max contour level | Checking this box prevents the display of contours above the maximum contour level. |
| Legend | Once you have set the contour levels, click to display of the contour color key. |
| Copy Static Levels | Click this button to overwrite the Animation contour levels with the Static contour levels. |
You can delete a contour level from the list by highlighting it and clicking .
Animation performance may degrade as additional points and lines are drawn to complete the contours.
Contour graphics during animation always reflect the value of the Figure Of Merit at the current animation time.
3. Display contour legends
To set the display of the contour key, or legend, click . You can also display a Contours Legend window by right-clicking an Attitude Figure Of Merit object in the Object Browser, scrolling to AttitudeFigureOfMerit, and sliding to the right to select either Static Contours Legend or Dynamic Contours Legend. You cannot open a Contours Legend window if you have not assigned contours to the Figure Of Merit through the Contours page.
The Legend provides you with a convenient way to interpret contour data displayed in the 2D and 3D Graphics windows. The Contours Legend window displays the coverage levels assigned along with the colors assigned to each level. You cannot edit this directly. You can keep the window on the side or in an unused corner of the screen throughout your Coverage session.
4. Changing the layout of a contours legend
You can set the display of the Contours Legend by clicking in the Contours Legend window. The Contours Legend Layout window that appears allows you to adjust the width of the color bands and the order in which the coverage levels are presented (maximum to minimum or vice versa).