Specifications

Using Help | Contents | Index
23
HISTORICAL TRACKS
Shadow Tracker ™ Professional
Premier Base - Help
Using Help | Contents | Index
23
Shadow Tracker
Historical Tracks
Historical Tracks provide a detailed, visual representation of the GPS data collected by your
Tracking Unit(s). This functionality lies at the heart of the Shadow Tracker Professional System.
When a Track is created, the GPS data is drawn and displayed as a colored-line overlaid on the
map. Each Track displays the Begin and
End locations, any stops made, and the option to display
the rate of speed traveled throughout each portion of the Track.
Please note that before GPS data can be viewed as an Historical Track, it must be downloaded
from the Tracking Unit and processed into the database. Historical Tracks are organized and
displayed according to the Vehicle Record that is associated with the Tracking Unit’s GPS data at
the time of download.
Understanding and Adjusting Track Display
When you create and display Historical Tracks, there are several settings that impact the way a
Track is drawn and displayed. Understanding the Stop Interval and Speed Display settings, and
how they affect the way Historical Tracks are rendered, will help you display Tracks that detail the
information you are most interested in.
Stop Interval
The Stop Interval: setting allows you to determine what time-interval will actually constitute a stop
when the Track is created and displayed. This setting can have a huge impact on the way Historical
Tracks are rendered. By adjusting this setting you can remove any unnecessary stop data created
by heavy traffic or traffic lights. The Stop Interval is adjusted by clicking the up/down arrows in
the Stop Interval: text box and can be decreased to as low as 1minute or increased to as high as
120 minutes.
When the Track is displayed, each stop is displayed and marked using a sequentially numbered
stop icon. By positioning your mouse cursor over a stop icon, the stop number, stop time and stop
duration for that stop will be displayed in the status bar at the bottom of the map. You can also
click a stop icon to display a pop-up box, which will contain the same stop information.
The Shadow Tracker program attempts to associate each stop with a known Map Location.
Anytime a stop occurs within the Mapping Target Area of a Map Location’s GPS coordinates, that
stop will be considered a stop at the Map Location’s location.