Class XRReferenceImageLibrary

A reference image library is a collection of images to search for in the physical environment when image tracking is enabled.

Inheritance

object

Object

ScriptableObject

XRReferenceImageLibrary

Implements

IReferenceImageLibrary

ISerializationCallbackReceiver

IEnumerable<XRReferenceImage>

IEnumerable

Inherited Members

ScriptableObject.SetDirty()

ScriptableObject.CreateInstance(string)

ScriptableObject.CreateInstance(Type)

ScriptableObject.CreateInstance<T>()

Object.GetInstanceID()

Object.GetHashCode()

Object.Equals(object)

Object.Instantiate(Object, Vector3, Quaternion)

Object.Instantiate(Object, Vector3, Quaternion, Transform)

Object.Instantiate(Object)

Object.Instantiate(Object, Transform)

Object.Instantiate(Object, Transform, bool)

Object.Instantiate<T>(T)

Object.Instantiate<T>(T, Vector3, Quaternion)

Object.Instantiate<T>(T, Vector3, Quaternion, Transform)

Object.Instantiate<T>(T, Transform)

Object.Instantiate<T>(T, Transform, bool)

Object.Destroy(Object, float)

Object.Destroy(Object)

Object.DestroyImmediate(Object, bool)

Object.DestroyImmediate(Object)

Object.FindObjectsOfType(Type)

Object.FindObjectsOfType(Type, bool)

Object.DontDestroyOnLoad(Object)

Object.DestroyObject(Object, float)

Object.DestroyObject(Object)

Object.FindSceneObjectsOfType(Type)

Object.FindObjectsOfTypeIncludingAssets(Type)

Object.FindObjectsOfType<T>()

Object.FindObjectsOfType<T>(bool)

Object.FindObjectOfType<T>()

Object.FindObjectOfType<T>(bool)

Object.FindObjectsOfTypeAll(Type)

Object.FindObjectOfType(Type)

Object.FindObjectOfType(Type, bool)

Object.ToString()

Object.name

Object.hideFlags

object.Equals(object, object)

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

Namespace: UnityEngine.XR.ARSubsystems

Assembly: Unity.XR.ARSubsystems.dll

Syntax

[CreateAssetMenu(fileName = "ReferenceImageLibrary", menuName = "XR/Reference Image Library", order = 1001)]
public class XRReferenceImageLibrary : ScriptableObject, IReferenceImageLibrary, ISerializationCallbackReceiver, IEnumerable<XRReferenceImage>, IEnumerable

Remarks

Image libraries are immutable at runtime. To create and manipulate an image library via Editor scripts, see the extension methods in UnityEditor.XR.ARSubsystems.XRReferenceImageLibraryExtensions. If you need to mutate the library at runtime, see MutableRuntimeReferenceImageLibrary.

Properties

this[int]

Get an image by index.

Declaration

public XRReferenceImage this[int index] { get; }

Parameters

Type	Name	Description
int	index	The index of the image in the library. Must be between 0 and count - 1.

Property Value

Type	Description
XRReferenceImage	The XRReferenceImage at index.

Exceptions

Type	Condition
IndexOutOfRangeException	Thrown if index is not between 0 and count - 1.

count

The number of images in the library.

Declaration

public int count { get; }

Property Value

Type	Description
int

dataStore

(Read Only) Binary data associated with a string key.

Declaration

public IReadOnlyDictionary<string, byte[]> dataStore { get; }

Property Value

Type	Description
IReadOnlyDictionary<string, byte[]>

Remarks

This is used by providers to associate provider-specific data with the library. During Player Build (in an IPreprocessBuildWithReport.OnPreprocessBuild callback), the data store is first cleared. Each enabled provider then has an opportunity to add one or more entries for itself.

Providers can use this to store a serialized version of the image library specific to that provider. Set data with UnityEditor.XR.ARSubsystems.XRReferenceImageLibraryExtensions.SetDataForKey.

guid

A GUID associated with this reference library. The GUID is used to uniquely identify this library at runtime.

Declaration

public Guid guid { get; }

Property Value

Type	Description
Guid

Methods

GetEnumerator()

Gets an enumerator which can be used to iterate over the reference images in this library.

Declaration

public List<XRReferenceImage>.Enumerator GetEnumerator()

Returns

Type	Description
List<XRReferenceImage>.Enumerator	Returns an enumerator which can be used to iterate over the reference images in the library.

Examples

This examples iterates over the reference images contained in the library.

XRReferenceImageLibrary imageLibrary = ...
foreach (var referenceImage in imageLibrary)
{
    Debug.LogFormat("Image guid: {0}", referenceImage.guid);
}

indexOf(XRReferenceImage)

Get the index of referenceImage in the image library.

Declaration

public int indexOf(XRReferenceImage referenceImage)

Parameters

Type	Name	Description
XRReferenceImage	referenceImage	The XRReferenceImage to find.

Returns

Type	Description
int	The zero-based index of the referenceImage, or -1 if not found.

Implements

IReferenceImageLibrary

UnityEngine.ISerializationCallbackReceiver

IEnumerable<T>

IEnumerable