# startMapping

Source: https://www.nianticspatial.com/docs/api/swift/NSDK.NSDKDeviceMappingSession.method-startMapping/

startMapping

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## Declaration

func startMapping()

#### Summary

Begin a mapping sequence.
This begins building an on-device map that can be used for VPS. Map data is accumulated
in the session's NSDKMapStorage while mapping is running. Subscribe to $latestMapUpdate
to retrieve incremental map updates reactively, or call NSDKMapStorage.mapData()
after mapping completes to get the full map.
- Attention: This method must be called after start() and before stop().

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