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Saving Spatial Anchors when Spatial Mapping is off?

Is it possible to save spatial anchors so that they persist in between app sessions if I am not using Spatial Mapping? I am implementing WorldAnchorManager and though the anchors are getting saved they arent persisting between sessions. Does this work only when spatial mapping is on?

Best Answers


  • ReeleyReeley ✭✭✭

    If they are getting saved you should be able to retrieve them. This also works without Spatialmapping.

    The thing is anchors are only a point in the room so if you want to save a 3d model, you have to instantiate a new one on start up and assign a saved worldanchor to this object.

    Try WorldAnchorManager.Instance.GetAllIds(); it gives you a string array of all worldanchors in the anchor store. (Just so we can be sure they are actually there)

  • shekitshekit
    edited June 2017

    Hey @Reeley thanks! I figured it out. I was able to get the ids and they were being saved. I have a couple of follow up questions:

    1) How does the Hololens know where it is? If I place spatial anchors in my home, then go to office and place some there, both while hotspotted to my phone, how will it distinguish between the two?

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