Querying Azure Spatial Anchors in UE

Development Programming & Scripting Multiplayer & Networking
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Hey there

I am trying to implement Azure Spatial Anchors to colocalize a game component cross platform.

I followed the Guide and was able to create Azure Spatial Anchors in UE and save them to the cloud but I don’t understand how to use Anchors that are saved from other sources.

According to the guide this is done through an Azure Spatial Anchor Event to which I can bind my callback function of choice. However they go on talking about setting up a watcher to get saved Anchors. What exactly do I have to do? I have set up a watcher as well as assigned a callback function to the Located Delegate Event from AzureSpatialAnchorsEvent. However when I successfully save an Anchor from a third party source in the cloud no function is triggered in my UE project.

TL;DR:
How can I “download” and make use of Azure Spatial Anchors which are saved in the Azure Cloud in Unreal Engine?

Thanks a lot in advance!

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Edit: I tried querying new Anchors coming in to to cloud with all available events in UE and none of them worked. I also had a watcher set up.

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I figured it out: When setting up a watcher make sure to read the Anchor Locate Criteria Documentation. You need to specify a means by which it can look for anchors. So either a list of identifiers, a certain proximity to another specified anchor or the proximity to your device. Then the ASAAnchor Locate Delegate works.

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hey, I’m also looking to create an indoor navigation AR with the help of azure spatial anchors. I went through the document that you mentioned, still unable to configure if I can have visual based indoor navigation with this,
any suggestions would be great.!