Class XRPlaneSubsystem

This subsystem provides information regarding the detection of planes (that is, flat surfaces) in the real-world environment.

Inheritance

Object

UnityEngine.SubsystemsImplementation.SubsystemWithProvider

UnityEngine.SubsystemsImplementation.SubsystemWithProvider<XRPlaneSubsystem, XRPlaneSubsystemDescriptor, XRPlaneSubsystem.Provider>

TrackingSubsystem<BoundedPlane, XRPlaneSubsystem, XRPlaneSubsystemDescriptor, XRPlaneSubsystem.Provider>

XRPlaneSubsystem

SimulationPlaneSubsystem

Inherited Members

TrackingSubsystem<BoundedPlane, XRPlaneSubsystem, XRPlaneSubsystemDescriptor, XRPlaneSubsystem.Provider>.GetChanges(Allocator)

UnityEngine.SubsystemsImplementation.SubsystemWithProvider<UnityEngine.XR.ARSubsystems.XRPlaneSubsystem, UnityEngine.XR.ARSubsystems.XRPlaneSubsystemDescriptor, UnityEngine.XR.ARSubsystems.XRPlaneSubsystem.Provider>.OnCreate()

UnityEngine.SubsystemsImplementation.SubsystemWithProvider.Start()

UnityEngine.SubsystemsImplementation.SubsystemWithProvider.OnStart()

UnityEngine.SubsystemsImplementation.SubsystemWithProvider.Stop()

UnityEngine.SubsystemsImplementation.SubsystemWithProvider.OnStop()

UnityEngine.SubsystemsImplementation.SubsystemWithProvider.Destroy()

UnityEngine.SubsystemsImplementation.SubsystemWithProvider.OnDestroy()

UnityEngine.SubsystemsImplementation.SubsystemWithProvider.running

Object.ToString()

Object.Equals(Object)

Object.Equals(Object, Object)

Object.ReferenceEquals(Object, Object)

Object.GetHashCode()

Object.GetType()

Object.MemberwiseClone()

Namespace: UnityEngine.XR.ARSubsystems

Syntax

public class XRPlaneSubsystem : TrackingSubsystem<BoundedPlane, XRPlaneSubsystem, XRPlaneSubsystemDescriptor, XRPlaneSubsystem.Provider>, ISubsystem

Remarks

This is a base class with an abstract provider type to be implemented by provider plug-in packages. This class itself does not implement plane detection.

Constructors

XRPlaneSubsystem()

Constructs a plane subsystem. Do not invoke directly. Instead, call Create(XRPlaneSubsystemDescriptor.Cinfo).

Declaration

public XRPlaneSubsystem()

Properties

currentPlaneDetectionMode

Get the current PlaneDetectionMode in use by the provider.

Declaration

public PlaneDetectionMode currentPlaneDetectionMode { get; }

Property Value

Type	Description
PlaneDetectionMode

requestedPlaneDetectionMode

Get or set the requested PlaneDetectionMode to enable different modes of detection.

Declaration

public PlaneDetectionMode requestedPlaneDetectionMode { get; set; }

Property Value

Type	Description
PlaneDetectionMode

Exceptions

Type	Condition
NotSupportedException	Thrown if requestedPlaneDetectionMode is set to something other than None when plane detection is not supported.

Methods

CreateOrResizeNativeArrayIfNecessary<T>(Int32, Allocator, ref NativeArray<T>)

Creates or resizes the array if necessary. If array has been allocated and its length is equal to length, then this method does nothing. If its length is different, then it is first disposed before being assigned to a new NativeArray.

Declaration

protected static void CreateOrResizeNativeArrayIfNecessary<T>(int length, Allocator allocator, ref NativeArray<T> array)
    where T : struct

Parameters

Type	Name	Description
Int32	length	The length that `array` will have after this method returns.
Unity.Collections.Allocator	allocator	If allocation is necessary, this allocator will be used to create the new `NativeArray`.
Unity.Collections.NativeArray<T>	array	The array to create or resize.

Type Parameters

Name	Description
T	The type of elements held by the `array`.

GetBoundary(TrackableId, Allocator, ref NativeArray<Vector2>)

Gets the boundary vertices of a given BoundedPlane based on its trackableId.

Declaration

public void GetBoundary(TrackableId trackableId, Allocator allocator, ref NativeArray<Vector2> boundary)

Parameters

Type	Name	Description
TrackableId	trackableId	The TrackableId of a BoundedPlane.
Unity.Collections.Allocator	allocator	An Unity.Collections.Allocator to use if `boundary` needs to be created. Unity.Collections.Allocator.Temp is not supported. Use Unity.Collections.Allocator.TempJob if you need temporary memory.
Unity.Collections.NativeArray<UnityEngine.Vector2>	boundary	The boundary vertices will be stored here. If the given array is the same length as the number of vertices, it is overwritten with the new data. Otherwise, it is disposed and recreated with the correct length.

GetChanges(Allocator)

Gets a TrackableChanges<T> struct containing any changes to detected planes since the last time you called this method. You are responsible to Dispose() the returned TrackableChanges instance.

Declaration

public override TrackableChanges<BoundedPlane> GetChanges(Allocator allocator)

Parameters

Type	Name	Description
Unity.Collections.Allocator	allocator	An `Allocator` to use for the returned `NativeArray`s.

Returns

Type	Description
TrackableChanges<BoundedPlane>	The TrackableChanges<T>.

Overrides

UnityEngine.XR.ARSubsystems.TrackingSubsystem<UnityEngine.XR.ARSubsystems.BoundedPlane, UnityEngine.XR.ARSubsystems.XRPlaneSubsystem, UnityEngine.XR.ARSubsystems.XRPlaneSubsystemDescriptor, UnityEngine.XR.ARSubsystems.XRPlaneSubsystem.Provider>.GetChanges(Unity.Collections.Allocator)

Remarks

The TrackableChanges<T> struct returned by this method contains separate Unity.Collections.NativeArray<T> objects for the added, updated, and removed planes. These arrays are created using the Unity.Collections.Allocator type specified by allocator.