Spatial Anchors not detected relative to the one in view

Question

We are having the following issues which seem to be bug-driven:

Problem: Unable to load any anchors connected to the currently detected anchor.

Step to loading connected anchors:

Place multiple connected anchors

Create a session

Place an anchor in AR

Upload it Azure Servers

Repeat steps a and c to place multiple connected anchors (within the same session)

Viewing anchors

Create new session

Enter id for one of the anchors created in step 1

Fetch anchor from Azure Servers

Create a watcher for fetched anchor

AnchorLocated gets called and loads anchor

A new watcher is created with:

m_scourceSpatialAnchor being anchor loaded in step e

    var nearAnchorCriteria = new NearAnchorCriteria();  
    var anchorLocateCriteria = new AnchorLocateCriteria();  
      
    nearAnchorCriteria.SourceAnchor = m_scourceSpatialAnchor;         
    anchorLocateCriteria.NearAnchor = nearAnchorCriteria;  
    m_spatialAnchorManager.Session.CreateWatcher(anchorLocateCriteria);  

No other anchor is detected or loaded

AnchorLocated event gets called once (regardless of the number of connected anchors) but with AnchorLocatedEventArgs status = AlreadyTracked

Note: all anchors can be viewed and loaded individually.

Answer 1

Hi @David Francis ,

For this one, is this with a specific device? HoloLens? Phone? Tablet?

Also, can you advise what version of the ASA SDK you are using for the project? This should work if the wayfinding steps are followed:
https://learn.microsoft.com/en-us/azure/spatial-anchors/concepts/anchor-relationships-way-finding

From the sample, you may just need to add more to criteria for distance and count you want:

NearAnchorCriteria nac = new NearAnchorCriteria();
nac.SourceAnchor = nearbyAnchor;
nac.DistanceInMeters = 10;
nac.MaxResultCount = 3;

Thanks,
Nathan