Timeline View
Use the Timeline View to visualize time intervals and time components within your scenario. You can adjust the display and content by using the toolbar, adjusting the three timeline displays, and adding rows of time components.
Toolbar
The toolbar contains buttons that enable you to add time components and manage content views and time views. The other sections in this topic describe the use of specific toolbar buttons, except for the Properties button, which applies to the Timeline View in general
To edit the properties of the Timeline View, click the 
button or right-click anywhere in the window and select Properties from the shortcut menu that appears. In the Timeline Properties dialog box, you can select the following tabs to customize the Timeline View window.
Display
The Display tab enables you to toggle on and off the display of the Toolbar, Global Time Bar, Global Time Scale, Time Display / Viewport Scale, and Component Rows. You can also adjust the size of the Component Name Font and Row Height using the slider bars.
Theme
You can change the display theme of the Timeline View by selecting a different ○theme from the shortcut menu on the Theme tab. You can choose one of the following themes:
- Default uses black text and displays the Global Time Bar/Scale in dark and light blue, the component rows with a white background, and the component labels with an orange background and the open space in gray.
- Aero uses black text and displays the Global Time Bar/Scale in dark and light blue, the component rows with a blue background, and the component labels with yellow background and the open sapce in white.
- Dark uses a black background with yellow text and lines for the Global Time Bar/Scale, displays the component rows with black text on a white background, and shows the component labels with black text on yellow background and the open space in black.
When you change the theme of the Timeline View, you need to refresh the window by closing it and opening it again from the View menu. STK preserves all of the content view and time views settings regardless of theme choice.
Intervals
The Intervals tab enables you to customize the display of the Component Rows. You can toggle on and off the display of the interval Label, Start Time, and Stop Time. You can also adjust the Font Size of the label and times by using the slider bar.
Viewing time
Global Time Bar
The Global Time Bar boundaries are always the same as the global time interval of the currently selected time view. The currently displayed interval of the Global Time Scale is displayed in blue on the Global Time Bar, while the rest of the scenario's interval is displayed in dark gray. You can use the white pointer 
to adjust the animation time to any point within the time view's interval. You can adjust the animation time to a specific point by right-clicking at that point on the Global Time Bar and selecting Set Animation Time to Here.
Global Time Scale
The Global Time Scale is the middle of the three timelines. Its boundaries are the same as the Global Time Bar, but you can also use the View Port to zoom in to emphasize a period of time within the complete interval. You can use the gray and blue dot 
to adjust the animation time to any point within the Global Time Scale's current boundary. You can also adjust the animation time to a specific point by right-clicking the Global Time Scale and selecting Set Animation Time to Here.
View Port
The View Port is a shaded overlay 
on the Global Time Scale that defines the boundaries of the Time Display. You can adjust the boundaries and scale by moving the rectangular markers 
at either end. When you drag the markers together, the Time Display will zoom in on that section of the timeline; you can zoom out by dragging the markers apart and holding one of them at the left or right edge of the timeline. Zooming the View Port can also result in the view of the Global Time Scale being scaled and adjusted relative to the period of time being examined within the View Port; however, the boundaries of the Global Time Scale remain unchanged.
The View Port times are static and cannot be used as a time component because they are actually saved as offsets of the Global Time, which can be a time component. This allows for the Global Time and View Port to update with changes to the scenario.
Time Display
The Time Display is the largest and most granular of the timelines. Its boundaries are defined by the View Port. You can use the gray pointer 
to adjust the animation time to any point within the Time Display's current boundary. You can adjust the animation time to a specific point by right-clicking the Time Display and selecting Set Animation Time to Here.
Component Rows
The component rows contain the time components that you select to visualize in the Timeline View. Each component is listed by its name on the left side of the Timeline View, with its intervals displayed beneath the Time Display timeline. You can click 
to hide a component. Click the Restore Hidden Items button (
) to restore the display of all hidden component rows. You can adjust the position of component rows by clicking and dragging them beneath or above other rows.
You can adjust the animation time by right-clicking an interval of a time component and selecting Set Animation Time to Interval Start Time, Set Animation Time to Interval Stop Time, or Set Animation Time to Here. In addition, you can click Center to set the boundaries of the Time Display to match the boundaries of the selected interval, if the selected interval is not greater than the global time interval.
By default, the Timeline View contains one component — the time interval of the current scenario. Click 
to select other intervals using time components from the Time Tool of the Analysis Workbench. You can cut, copy, paste, and delete component rows using the 
, 
, 
, and 
buttons, respectively, on the rightmost part of the toolbar.
Content Views
A content view is a collection of component rows. You can use content views to group the display of time components together for comparison and then switch quickly between the different time visualizations that you want to examine. The content view section of the Timeline toolbar 
enables you to manage content views as follows:
| Button | Description |
|---|---|
|
Creates a new content view of the currently displayed component rows. |
| (shortcut menu) | Click the down arrow of the shortcut menu to select a content view to display from the list. |
|
Click this to edit the name of the currently selected content view. |
|
|
If you change the component rows and want to restore the view to the components defined for the currently selected content view, click this button. |
|
Click this to save changes to the currently selected content view. |
To delete a content view, click 
next to its name in the shortcut menu.
Time Views
A time view is a set of time interval boundaries that includes the Global Time Bar and View Port intervals. You can use time views to switch quickly between intervals of interest within your scenario's timeline. The time view section of the Timeline toolbar 
enables you to manage time views as follows:
| Button | Description |
|---|---|
|
Click this to add a time view of the currently displayed component rows. |
| (shortcut menu) | Click the down arrow of the shortcut menu to select a time view to display from the list. |
|
|
Click this to edit the currently selected time view. |
|
|
If you change the interval boundaries of the timelines and want to restore the view to the boundaries defined by the currently selected time view, click this button. |
|
|
Click this to save changes to the currently selected time view. |
To delete a time view, click next to its name in the shortcut menu.