BaseTracker Class
BaseTracker is the base blass for Tracker representing client or cloud image target collections.
BaseTracker is a supercalss for other classes and must not be directly instantiated by the developer.
Item Index
Properties
Events
Methods
destroy
()
Destroys the object.
Properties
enabled
Boolean
The current activity state of the Tracker. This property might by changed automatically by the system, in case another Tracker is enabled, causing this Tracker to be disabled. The onDisabled trigger will be called in this case.
physicalTargetImageHeights
Object
Use this option to specify the physical height of a image target that is included in the .wtc file. These options are only necessary if the distanceToUser functionality is used and the .wtc file version is below 4.1. The physical height is expressed in millimeter, and this object contains a map using target names as keys.
src
String
The URI pointing to the referenced target collection. The property is read-only and can only be set on creation.
Events
onDisabled
The trigger fires when the Tracker has been disabled by
the system. It does not fire when enabled is set to
false manually.
The trigger is null by default, and will thus result in no action executed when the trigger fires. A developer can add custom functionality by assigning a custom function to onDisabled.
onError
The trigger fires when the Tracker's target collection
could not be loaded. Causes for this might include bad
network connection or a corrupt target collection.
The trigger is null by default, and will thus result in no action executed when the trigger fires. A developer can add custom functionality by assigning a custom function to onError.
onLoaded
The trigger fires when the Tracker's target collection
was successfully loaded. TrackableObjects related to
this Tracker can only be tracked after the Tracker was
successfully loaded.
The trigger is null by default, and will thus result in no action executed when the trigger fires. A developer can add custom functionality by assigning a custom function to onLoaded.