Skip to main content

class DeviceMapAccessController

(Niantic.Lightship.AR.Mapping.DeviceMapAccessController)

Overview​

Class to access primitive device map data and configs

class DeviceMapAccessController {
	public:
		// properties
	
		DeviceMapAccessController Instance;
		OutputEdgeType OutputEdgeType;

		// methods
	
		void ClearDeviceMap();
		void StartUploadingMaps();
		void StopUploadingMaps();
		void StartDownloadingMaps();
		void StopDownloadingMaps();
		bool MarkMapNodeForUpload(TrackableId mapId);
		bool HasMapNodeBeenUploaded(TrackableId mapId);
		void AddMapNode(byte[] dataBytes);
		void AddSubGraph(byte[] dataBytes);
		bool GetMapNodeIds(out TrackableId[] mapIds);
	
		bool GetSubGraphIds(
			out TrackableId[] subgraphIds,
			OutputEdgeType outputEdgeType = OutputEdgeType.All
		);
	
		bool GetMapNodes(TrackableId[] mapIds, out MapNode[] maps);
		bool GetSubGraphs(TrackableId[] subgraphIds, out MapSubGraph[] blobs);
	
		bool GetLatestUpdates(
			out MapNode[] mapNodes,
			out MapSubGraph[] subGraphs,
			OutputEdgeType outputEdgeType = OutputEdgeType.All
		);
	
		bool CreateAnchorFromMapNode(
			MapNode map,
			Matrix4x4 pose,
			out byte[] anchorPayload
		);
	
		bool MergeSubGraphs(
			MapSubGraph[] subgraphs,
			bool onlyKeepLatestEdges,
			out MapSubGraph mergedSubgraph
		);
	
		void ExtractMapMetaData(
			byte[] mapBlob,
			out Vector3[] points,
			out float[] errors,
			out Vector3 center,
			out string mapType
		);
	};

Detailed Documentation​

Class to access primitive device map data and configs

.. note::

This is an experimental feature, and is subject to breaking changes or deprecation without notice

Properties​

OutputEdgeType​

OutputEdgeType OutputEdgeType

Specifies what type of edges will be output by GetSubGraphs() When set, this config takes in effect immediately

.. note::

This is an experimental feature, and is subject to breaking changes or deprecation without notice

Methods​

ClearDeviceMap​

void ClearDeviceMap()

Clear map/graph node locally registered in the localizer

.. note::

This is an experimental feature, and is subject to breaking changes or deprecation without notice

StartUploadingMaps​

void StartUploadingMaps()

Starts uploading new maps generated from this call-on

.. note::

This is an experimental feature, and is subject to breaking changes or deprecation without notice

StopUploadingMaps​

void StopUploadingMaps()

Stops uploading maps

.. note::

This is an experimental feature, and is subject to breaking changes or deprecation without notice

StartDownloadingMaps​

void StartDownloadingMaps()

Starts downloading maps around to localize

.. note::

This is an experimental feature, and is subject to breaking changes or deprecation without notice

StopDownloadingMaps​

void StopDownloadingMaps()

Stops downloading maps

.. note::

This is an experimental feature, and is subject to breaking changes or deprecation without notice

MarkMapNodeForUpload​

bool MarkMapNodeForUpload(TrackableId mapId)

Marks map node for upload. Downloads are triggered by StartUploadingMaps. Returns false if op fails early.

.. note::

This is an experimental feature, and is subject to breaking changes or deprecation without notice

HasMapNodeBeenUploaded​

bool HasMapNodeBeenUploaded(TrackableId mapId)

Checks if map node was uploaded

.. note::

This is an experimental feature, and is subject to breaking changes or deprecation without notice

AddMapNode​

void AddMapNode(byte[] dataBytes)

Add a map node to the localizer

.. note::

This is an experimental feature, and is subject to breaking changes or deprecation without notice

    Parameters:

    dataBytes - map node blob data as a byte array

AddSubGraph​

void AddSubGraph(byte[] dataBytes)

Add graph(s) to the localizer

.. note::

This is an experimental feature, and is subject to breaking changes or deprecation without notice

    Parameters:

    dataBytes - graph blob data as a byte array

GetMapNodeIds​

bool GetMapNodeIds(out TrackableId[] mapIds)

Get a list of current map nodes in the native map storage

.. note::

This is an experimental feature, and is subject to breaking changes or deprecation without notice

    Parameters:

    mapIds - an array of map ids

    Returns:

    True if any ids generated. False if no map has been generated so far

GetSubGraphIds​

bool GetSubGraphIds(
		out TrackableId[] subgraphIds,
		OutputEdgeType outputEdgeType = OutputEdgeType.All
	)

Get a list of current map nodes in the native map storage

.. note::

This is an experimental feature, and is subject to breaking changes or deprecation without notice

    Parameters:

    subgraphIds - an array of map ids

    outputEdgeType - specify what type of edges will be output

    Returns:

    True if any ids generated. False if no map has been generated so far

GetMapNodes​

bool GetMapNodes(TrackableId[] mapIds, out MapNode[] maps)

Get the map data generated

.. note::

This is an experimental feature, and is subject to breaking changes or deprecation without notice

    Parameters:

    maps - an array of map data

    Returns:

    True if any maps generated. False if no map has been generated so far

GetSubGraphs​

bool GetSubGraphs(TrackableId[] subgraphIds, out MapSubGraph[] blobs)

Get graph data of map nodes

.. note::

This is an experimental feature, and is subject to breaking changes or deprecation without notice

    Parameters:

    blobs - an array of graphs

    Returns:

    True if any graph generated. False if no graph has been generated so far

CreateAnchorFromMapNode​

bool CreateAnchorFromMapNode(
		MapNode map,
		Matrix4x4 pose,
		out byte[] anchorPayload
	)

Generates Anchor (as payload) from MapNode

.. note::

This is an experimental feature, and is subject to breaking changes or deprecation without notice

    Parameters:

    map - A map node, device map

    pose - A local pose of the anchor to create

    anchorPayload - anchor payload as byte array

    Returns:

    True if byte array representing the anchor that can be wrapped by namespace Niantic.Lightship.AR.PersistentAnchors

MergeSubGraphs​

bool MergeSubGraphs(
		MapSubGraph[] subgraphs,
		bool onlyKeepLatestEdges,
		out MapSubGraph mergedSubgraph
	)

Merges Map Subgraphs

.. note::

This is an experimental feature, and is subject to breaking changes or deprecation without notice

    Parameters:

    subgraphs - Array of subgraphs to merge

    onlyKeepLatestEdges - If true, it only keeps latest edge between two given nodes

    mergedSubgraph - Output merged subgraph

    Returns:

    True if merge succeeded

ExtractMapMetaData​

void ExtractMapMetaData(
		byte[] mapBlob,
		out Vector3[] points,
		out float[] errors,
		out Vector3 center,
		out string mapType
	)

Extract map metadata from the map blob data

    Parameters:

    mapBlob - map blob data as byte array

    points - feature points relative to the map center

    errors - error of each points

    center - map center in the mapping coordinate system

    mapType - indicate type of the map data