com.wikitude.tracker

Interface ImageTarget

All Superinterfaces:

Target

public interface ImageTarget
extends Target

ImageTarget represents a target recognized by an Image Tracker

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	ImageTarget.OnDistanceBetweenTargetsListener Interface definition for a callback to be invoked when the distance between two ImageTargets changes.

Method Summary

Modifier and Type	Method and Description
float	getDistanceToImageTarget(ImageTarget other) Returns the distance from this to another ImageTarget.
int	getDistanceToTarget()
String	getName()
ImageTarget.OnDistanceBetweenTargetsListener	getOnDistanceBetweenTargetsListener() Returns the distance between two ImageTargets change callback for this ImageTarget.
int	getPhysicalTargetImageHeight() Returns the physical height of the target image.
android.graphics.Rect	getTargetAreaInCameraFrame()
android.graphics.Rect	getTargetAreaInScreenSpace(float[] projectionMatrix)
Vector2<Float>	getTargetScale() Defines a normalized scale value in x and y direction that represents the image dimensions proportionally to the uniform scaling given through the modelView matrix.
long	getUniqueId()
void	setOnDistanceBetweenTargetsListener(ImageTarget.OnDistanceBetweenTargetsListener listener) Set a listener to receive callbacks when the distance between two ImageTargets changes.

Methods inherited from interface com.wikitude.tracker.Target

getModelViewProjectionMatrix, getProjectionMatrix, getViewMatrix

Method Detail

getName

String getName()

Returns:

The name of the recognized target

getUniqueId

long getUniqueId()

Returns:

The unique id of the recognized target

getPhysicalTargetImageHeight

int getPhysicalTargetImageHeight()

Returns the physical height of the target image. This value can be either set in the .wtc file or with ImageTrackerConfiguration.setPhysicalTargetImageHeights(java.util.HashMap<java.lang.String, java.lang.Integer>).

Returns:

The physical target image height in mm.

getDistanceToTarget

int getDistanceToTarget()

Returns:

The distance to the recognized target

getDistanceToImageTarget

float getDistanceToImageTarget(ImageTarget other)

Returns the distance from this to another ImageTarget.

Parameters:

other - The second ImageTarget

Returns:

The distance between the center of the ImageTargets.

getTargetScale

Vector2<Float> getTargetScale()

Defines a normalized scale value in x and y direction that represents the image dimensions proportionally to the uniform scaling given through the modelView matrix.

Returns:

Scale of the x and y axis of the target image.

getOnDistanceBetweenTargetsListener

ImageTarget.OnDistanceBetweenTargetsListener getOnDistanceBetweenTargetsListener()

Returns the distance between two ImageTargets change callback for this ImageTarget.

Returns:

The callback, or null if none is registered.

setOnDistanceBetweenTargetsListener

void setOnDistanceBetweenTargetsListener(ImageTarget.OnDistanceBetweenTargetsListener listener)

Set a listener to receive callbacks when the distance between two ImageTargets changes.

Parameters:

listener - The ImageTarget.OnDistanceBetweenTargetsListener to receive callbacks.

getTargetAreaInCameraFrame

android.graphics.Rect getTargetAreaInCameraFrame()

getTargetAreaInScreenSpace

android.graphics.Rect getTargetAreaInScreenSpace(float[] projectionMatrix)