Tracked Barcode#

Defined in package com.scandit.datacapture.barcode.tracking.data

TrackedBarcode#
class TrackedBarcode

Added in version 6.0.0

A barcode tracked over the course of multiple frames.

The state of a TrackedBarcode can be observed using a BarcodeTrackingListener.

The BarcodeTrackingListener.onSessionUpdated() callback will be invoked every time a new frame is processed and at least one of the following events took place:

  1. A track is established.

  2. A track location has changed.

  3. A track is lost and can no longer be tracked.

location#
@NonNull Quadrilateral getLocation()

Added in version 6.4.0

The current position of the tracked barcode.

Warning

In case the feature is not licensed, a quadrilateral with all corners set to 0, 0 is returned.

deltaTimeToPrediction#
@NonNull TimeInterval getDeltaTimeToPrediction()

Added in version 6.0.0

The time (in seconds) it will take the tracked barcode to move to the predictedLocation. This value can be used to animate the predicted change of location of the tracked barcode.

predictedLocation#
@NonNull Quadrilateral getPredictedLocation()

Added in version 6.0.0

The location where the tracked barcode is predicted to be in deltaTimeToPrediction.

Warning

In case the feature is not licensed, a quadrilateral with all corners set to 0, 0 is returned.

shouldAnimateFromPreviousToNextState#
boolean getShouldAnimateFromPreviousToNextState()

Added in version 6.0.0

True if it’s safe to animate from the current state to the next. As there are state transitions that do not guarantee a stable ordering of the location’s corners you should always check this property before animating a location change.

identifier#
int getIdentifier()

Added in version 6.0.0

The unique identifier for the tracked barcode. The identifier is unique for each barcode. The same identifier may be reused once the barcode is lost for another barcode.

barcode#
@NonNull Barcode getBarcode()

Added in version 6.0.0

The barcode associated to this track.

getAnchorPosition(anchor)#
@NonNull Point getAnchorPosition(Anchor anchor)

Added in version 6.4.0

The position of an anchor point of the tracked barcode.

toJson()#
@NonNull String toJson()

Added in version 6.2.0

Returns the JSON representation of the tracked barcode.