# ARDeviceMappingManager

Source: https://www.nianticspatial.com/docs/api/unity/NianticSpatial.NSDK.AR.Mapping.ARDeviceMappingManager/

ARDeviceMappingManager
> extends UnityEngine.XR.ARFoundation.SubsystemLifecycleManager
ARDeviceMappingManager can be used to create and manage maps on the local device.

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## Declaration

public class ARDeviceMappingManager : SubsystemLifecycleManager<XRDeviceMappingSubsystem, XRDeviceMappingSubsystemDescriptor, Provider>

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## Properties

| Name | Type | Summary |
| --- | --- | --- |
| readonly IsMappingInProgress | bool | A state if mapping is in progress or not. True is mapping is ongoing. Becomes false after calling StopMapping() |
| MappingSplitterMaxDistanceMeters | float | Property access for map splitting criteria by distance |
| MappingSplitterMaxDurationSeconds | float | Property access for map splitting criteria by time |
| MappingTargetFrameRate | uint | Property access for mapping speed |
| readonly RootAnchorPayload | string | Get the root anchor payload if one has been created (as base64-encoded string). |

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## Methods

| Name | Type | Summary |
| --- | --- | --- |
| ClearMap | void | - |
| ExtractMapMetadataFromRootAnchor | bool | Extract the metadata from a map relative to the stored root anchor. |
| StartMapping | void | Start map generation |
| StopMapping | void | Stop map generation |
| TryGetMapData | bool | - |

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## Events

| Name | Type | Summary |
| --- | --- | --- |
| MapFinalized | Action<byte[]> | An event when device map is finalized and ready to save |
| MapUpdated | Action<byte[]> | An event when device map data has been updated. The surfaced map contains only the parts of the map that were updated since the last time this event was invoked. Use TryGetMapData to get the entire map. |

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