com.wikitude.tracker

Interface ImageTracker

public interface ImageTracker

Interface to control Image Trackers

Method Summary

Modifier and Type	Method and Description
boolean	isExtendedTrackingActive()
void	setDistanceChangedThreshold(int distanceChangedThreshold) Sets the threshold in mm that has to be exceeded for ImageTarget.OnDistanceBetweenTargetsListener.onDistanceBetweenTargetsChanged(int, com.wikitude.tracker.ImageTarget, com.wikitude.tracker.ImageTarget) to be triggered.
void	setExtendedTargets(String[] extendedTargets) Sets the targets for which the extended tracking should be enabled.
void	stopExtendedTracking() Immediately stops the extended tracking mode.

Method Detail

isExtendedTrackingActive

boolean isExtendedTrackingActive()

Returns:

Returns true if extended tracking is currently active

setExtendedTargets

void setExtendedTargets(String[] extendedTargets)

Sets the targets for which the extended tracking should be enabled.

Parameters:

extendedTargets - targets used for extended tracking

stopExtendedTracking

void stopExtendedTracking()

Immediately stops the extended tracking mode. If the target image is already outside the field of vision, this will stop tracking the scene.

setDistanceChangedThreshold

void setDistanceChangedThreshold(int distanceChangedThreshold)

Sets the threshold in mm that has to be exceeded for ImageTarget.OnDistanceBetweenTargetsListener.onDistanceBetweenTargetsChanged(int, com.wikitude.tracker.ImageTarget, com.wikitude.tracker.ImageTarget) to be triggered.

e.g.:
If this is set to 10, the distance between two targets has to change by at least 10 mm before ImageTarget.OnDistanceBetweenTargetsListener.onDistanceBetweenTargetsChanged(int, com.wikitude.tracker.ImageTarget, com.wikitude.tracker.ImageTarget) can be triggered again.

Parameters:

distanceChangedThreshold - threshold in mm that has to be exceeded for ImageTarget.OnDistanceBetweenTargetsListener.onDistanceBetweenTargetsChanged(int, com.wikitude.tracker.ImageTarget, com.wikitude.tracker.ImageTarget) to be triggered