Interface IProvidesMarkerTracking

Defines the API for a Marker Tracking Provider This functionality provider is responsible for marker tracking

Inherited Members
Namespace: Unity.MARS.Providers
Syntax
[MovedFrom("Unity.MARS")]
public interface IProvidesMarkerTracking : IFunctionalityProvider

Methods

GetMarkers(List<MRMarker>)

Get the currently tracked markers

Declaration
void GetMarkers(List<MRMarker> markers)
Parameters
Type Name Description
List<MRMarker> markers

A list of MRMarker objects to which the currently tracked markers will be added

SetActiveMarkerLibrary(IMRMarkerLibrary)

Initialize the list of markers to look for when this marker tracking provider starts tracking. If an existing marker library is being used, this one replaces the active one and images contained in this marker library start getting detected. The existing tracked markers will stop receiving update events, and they may be removed.

Declaration
bool SetActiveMarkerLibrary(IMRMarkerLibrary activeLibrary)
Parameters
Type Name Description
IMRMarkerLibrary activeLibrary

Marker library with list of markers to detect
Returns
Type Description
Boolean

StartTrackingMarkers()

Start tracking markers. Marker tracking is enabled on initialization, so this is only necessary after calling StopTrackingMarkers.

Declaration
void StartTrackingMarkers()

StopTrackingMarkers()

Stop tracking markers. This will happen automatically on destroying the session. It is only necessary to call this method to pause marker tracking while maintaining camera tracking.

Declaration
void StopTrackingMarkers()

Events

markerAdded

Called when a marker becomes tracked for the first time

Declaration
event Action<MRMarker> markerAdded
Event Type
Type Description
Action<MRMarker>

markerRemoved

Called when a tracked marker is removed (lost)

Declaration
event Action<MRMarker> markerRemoved
Event Type
Type Description
Action<MRMarker>

markerUpdated

Called when a tracked marker has updated data

Declaration
event Action<MRMarker> markerUpdated
Event Type
Type Description
Action<MRMarker>