3.6. Track & Time toolbox
The Track & Time toolbox acts a multi-purpose panel providing access to a number of operations.
The general sequence for using these commands is as follows:
Select the operation to perform
Select which tracks/buoyfields the operation is to be performed on
Select the time period for which the operation is to cover
Press the "Apply" button
3.6.1. T-Zero times
The command reformats the labels on the plot to follow the standard presentation for weapon-analysis plots; where absolute times are replaced by times relative to a specific event (T-Zero)- such as Weapon Splash.
When the command is started, the following sequence of events occur:
You are invited to enter the frequency in seconds at which symbols are drawn on the indicated tracks.
You are invited to enter the frequency in seconds at which location labels are displayed for the indicated tracks. In the labels at this indicated frequency the text is set to the elapsed time in seconds since the time-zero time.
These steps are applied to all of the track points between the Start time (which is used as T-Zero) and the Finish time.
 | Note also that when the date format in the Time Stepper is set to T+ SSS the current time of the time stepper is no longer displayed as absolute time, but as elapsed seconds since the time currently displayed in the Start Time on this panel, or elapsed minutes and seconds (T+ MM:SS). |
3.6.2. Filter to time period
The hides all data points on the selected tracks which are before the current Start time, or after the current End time. The range of the time sliders themselves then shrinks to this new period. The range of the time sliders can be reset back out to cover the full period of the currently loaded data by pressing the Reset button.
| It is quite possible to apply a time filter such that all of the points in a short track become hidden. In such circumstances the track name is also hidden, but revealed as soon as a single data point becomes visible. |
3.6.3. Show time-related variables
The operation produces an x-y plot of a set of calculated data. After pressing the button the user is invited to indicate which track is to be used as the primary track, and which calculation is to be plotted. The example below shows the results of a Range calculation between two tracks. Note that dragging the mouse downwards in a rectangle inside the plot zooms in on the data, dragging the mouse upwards into a rectangle zooms out on the data, and that the button zooms out to show all of the current data.
3.6.3.1. Time-Variable Plot Tracker-Bar
If there are tracks on the Debrief Tote, a vertical bar is drawn through the plot at the correct time. If the current time on the Tote occurs before the earliest time on the Time-Variable plot then the bar is drawn at the minimum value, and drawn over the maximum value if the current time on the Tote occurs after the latest time value. The bar redraws itself automatically as the time in the Tote changes.
3.6.4. Copy data to clipboard
The details of copying data to the clipboard are covered later in Section 4.3.4 under Copying data to clipboard
3.6.5. Reformat Positions
The Reformat Positions operation allows you to change a formatting characteristic of positions on particular tracks throughout a specific time period.
Suppose that you want to change the colour of a particular track between two time, possibly to indicate an SSK' snort period. First select the SSK track, then the time period for which it was snorting. Next select . A dialog will open asking you what characteristic you wish to change, select Color from this. The next dialog box provides a list of possible values for the selected characteristic: a list of colours in this case. After this selection the relevant positions will be updated. Use to cancel any changes created this way. An example of coloured tracks can be seen in Section 1.3.4 under Select files
3.6.6. Hide/Reveal Objects
This operation allows you to select a series of objects from the track/time toolbox and collectively set them to be visible or invisible. Their previous state is remembered by Debrief so you can quickly and easily perform an operation to reset them.