Azure Spatial Anchors
An Azure service that is used to build immersive three-dimensional applications and experiences that map, persist, and restore content or points of interest at real-world scale.
86 questions
1 answer
One of the answers was accepted by the question author.
StartSession cannot be started, spatial perception access cannot be verified
Hello everyone! Was trying out the Hololens 2 integration with Unreal Engine 4.26.2 and 4.27.2 using the Microsoft OpenXR github plugin. Came across this error that I wasn't able to get past: StartSession cannot be started yet because spatial…
asked 2022-02-24T17:41:18.41+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(313.6, 54%, 40%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJE%3C/text%3E%3C/svg%3E)
Justin Eslinger
31
Reputation points
accepted 2022-03-08T00:21:59.99+00:00
Justin Eslinger
31
Reputation points
1 answer
Spatial Anchor Data Size
Hello I am trying to compare the size of data it takes to share an Azure Spatial anchor and compare it to a full SLAM map. Is there any information or documentation describing the data size of a single spatial anchor?
asked 2022-02-15T15:25:47.22+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(38.4, 33%, 13%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EFR%3C/text%3E%3C/svg%3E)
Frank R
1
Reputation point
commented 2022-03-06T18:32:43.707+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(54.400000000000006, 38%, 15%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EQ%3C/text%3E%3C/svg%3E)
QuantumCache
20,031
Reputation points
1 answer
Errors when exporting Azure Spatial Anchors default example in platform "PC, Mac & Linux Standalone"
Hi, When i exported the Azure Spatial Anchors default example(https://learn.microsoft.com/en-us/learn/modules/azure-spatial-anchors-tutorials/) which i finished, in the platform "PC, Mac & Linux Standalone" but i got errors below. …
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(28.799999999999997, 85%, 12%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
1 answer
One of the answers was accepted by the question author.
Do we have to delete anchors that we don't need anymore?
Hi. We develop AR apps for iOS using Azure Spatial Anchors. I'd like to know about deleting anchors. My understanding, we can delete anchors from supported platform(iOS, Android. Unity) but they don't support Web API. When we need to clean up…
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(275.2, 68%, 36%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
1 answer
Not able to run APIs which get from web app and Azure Spatial Anchors data to locate that anchor when we close and reopen app.
I am using Azure Spatial Anchors for iOS app (in Xcode). I setup all the things in iOS app in swift from Quickstart guide and also setup VisualStudio web app, But i am not able to use APIs which I get from Webapp and not getting data of Spatial Anchors…
asked 2021-11-20T12:39:14.483+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(140.8, 56.00000000000001%, 23%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ERJ%3C/text%3E%3C/svg%3E)
Rohit Joshi
1
Reputation point
commented 2022-02-18T17:35:21.797+00:00
António Sérgio Azevedo
7,661
Reputation points Microsoft Employee
1 answer
Azure Spatial Anchors - What exactly are Anchor Locate Requests (ALR) and where can you see how many are actually made?
In the context of a customer project, the issue is as described in the title related to Anchor Locate Requests (ALR). The website provides the following information: "An Anchor Locate Request, or ALR, refers to a developer API call that is…
asked 2022-02-14T10:42:36.827+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(294.40000000000003, 53%, 38%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EPF%3C/text%3E%3C/svg%3E)
Paulo Ferreira da Silva
1
Reputation point
commented 2022-02-18T11:36:59.82+00:00
António Sérgio Azevedo
7,661
Reputation points Microsoft Employee
3 answers
How to load ASA in a new Unity Project
Hello, I've been reading through the documentation of Azure Spatial Anchors and I'm a bit confused about how you re-use an ASA in a new Unity project. I don't understand is how do you load an ASA in your Unity UI to be the reference location of a…
asked 2022-01-24T09:37:16.8+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(185.6, 51%, 27%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
ARNAUD
16
Reputation points
commented 2022-02-04T08:58:06.43+00:00
António Sérgio Azevedo
7,661
Reputation points Microsoft Employee
1 answer
Azure spatial anchors - Coarse relocalization quality
Hi! I'm building an app and I want to utilize Coarse relocation feature to find anchors close to the user. I did some tests, and the system works great if, as a user, I scan the environment and find some unique visuals first. Unfortunately, the…
asked 2022-01-22T18:06:47.663+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(172.8, 60%, 26%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EKR%3C/text%3E%3C/svg%3E)
Karol R
1
Reputation point
answered 2022-01-25T12:34:55.13+00:00
António Sérgio Azevedo
7,661
Reputation points Microsoft Employee
1 answer
Bind Cloud Spatial Anchors with a 3D model
Hi! I'm developing an app in Unity where I want to draw a path between two anchors, but I want this path to take a walkable area under consideration (I don't want it to be a straight line or a simple arrow). To achieve that I'm considering binding…
asked 2022-01-20T10:48:58.223+00:00
Karol R
1
Reputation point
answered 2022-01-25T10:44:20.37+00:00
António Sérgio Azevedo
7,661
Reputation points Microsoft Employee
2 answers
In which case the SLAM method is used ?
Hello, I am doing a study related to the field of augmented reality, and especially related to Google's ARCore technology. I would like to know if the SLAM method is required for model-based tracking. It seems obvious to me that it is not used in this…
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(233.6, 41%, 32%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EK%3C/text%3E%3C/svg%3E)
1 answer
Unity iOS app with Azure Spatial Anchors - Unable to place anchor
I am running the Azure Spatial Anchors Basic Demo on Unity (2020.3.23f1) and iOS (latest iOS) with ASA 2.11.0 and for some reason I cannot place the Anchors when running it on my iPhone (iPhone 12 Pro). When reaching the phase "Tap a surface to…
asked 2021-12-12T13:39:38.787+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(297.6, 24%, 38%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESG%3C/text%3E%3C/svg%3E)
Shachar Grembek
1
Reputation point
commented 2022-01-07T19:20:18.123+00:00
António Sérgio Azevedo
7,661
Reputation points Microsoft Employee
1 answer
One of the answers was accepted by the question author.
Comparison of points clouds in Azure Spatial Anchors
Hello, I am currently doing a study on the recent Azure spatial anchors technology. Unfortunately, I have difficulties finding information about some technical aspects, especially information about cloud comparison. If I have understood correctly,…
1 answer
One of the answers was accepted by the question author.
Managing cloud anchor without identifier
im wonder about managing spatial anchors. first, when i create new cloud anchor. what if i dont set cloudAnchor Expiration? is it remain in my spatila anchor account permanently? now we using cosmos db for saving anchor's identifier. but, if for some…
asked 2021-12-16T01:01:56.22+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(128, 8%, 22%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
Anonymous
commented 2021-12-27T09:51:14.58+00:00
António Sérgio Azevedo
7,661
Reputation points Microsoft Employee
1 answer
Need help Testing Azure Spatial Anchors in Unreal Engine 4.26 using hololens 2
So I just finished implementing the spatial anchoring to my MRPawn for my unreal engine project and now I want to test it but I don't know how to acutally test it. I already checked the documentation for azure spatial anchoring and there's nothing on how…
asked 2021-11-19T21:04:15.95+00:00
Anonymous
answered 2021-12-01T20:48:28.82+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(249.60000000000002, 74%, 34%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJF%3C/text%3E%3C/svg%3E)
Jackson Fields
186
Reputation points
1 answer
One of the answers was accepted by the question author.
Creating Azure Spatial Anchors in Unreal Engine 4.26 and Hololens
Hey guys. So I'm trying to create a spatial anchor using Unreal Engine and the Hololens, but I don't know how to create it, I have all of the functions implemented in by looking through the documentation for the Azure Spatial Anchors…
asked 2021-11-11T06:33:41.157+00:00
Anonymous
commented 2021-11-18T22:32:30.583+00:00
Anonymous
5 answers
One of the answers was accepted by the question author.
Getting started with Azure Spatial Anchors: CreateAzureAnchor() crash or taking a long time to load
I have been following this tutorial: https://learn.microsoft.com/en-us/windows/mixed-reality/develop/unity/tutorials/mr-learning-asa-02 there were some necessary configurations and steps not included in the tutorial like: * it needed an…
asked 2021-04-30T11:24:53.203+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(83.2, 32%, 18%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ERD%3C/text%3E%3C/svg%3E)
Rhylvin Dale Tinador
111
Reputation points
commented 2021-11-17T16:12:42.763+00:00
António Sérgio Azevedo
7,661
Reputation points Microsoft Employee
2 answers
How to manage all azure SpatialAnchors in account?
Is there a way to view (or programmatically retrieve) all spatial anchors created in my account? So I can review and clean up those which are not in use anymore. The current API allows getting anchors only by known ids or nearby. But what if the…
asked 2021-09-29T19:56:38.767+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(57.599999999999994, 28.000000000000004%, 15%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESR%3C/text%3E%3C/svg%3E)
Sergii Romanov
46
Reputation points
commented 2021-10-07T22:13:07.727+00:00
Sergii Romanov
46
Reputation points
1 answer
One of the answers was accepted by the question author.
SpatialAnchors AppProperties crash in Android NDK
Azure SpatialAnchors NDK crashes on inserting/looking up AppProperties. After unsuccessful attempts to fix it in my custom app I added the code to the official Microsoft tutorial which worked fine for me before. …
asked 2021-09-26T19:29:22.987+00:00
Sergii Romanov
46
Reputation points
commented 2021-09-30T05:26:29.917+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(214.4, 74%, 30%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAM%3C/text%3E%3C/svg%3E)
AshokPeddakotla-MSFT
27,311
Reputation points
1 answer
Diffrentiate anchors placed in similar object/place in real world using Azure spatial anchor in Unity
Hello there, So right now I am using Azure Spatial Anchors in Unity to place anchors at certain objects in a certain space. I have already used Anchor locate criteria, NearAnchor and NearDevice. This was tested using a ZEBRA TC57HO To replicate…
asked 2021-09-15T14:45:36.127+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(166.4, 6%, 26%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJO%3C/text%3E%3C/svg%3E)
João Barreto
1
Reputation point
commented 2021-09-23T11:04:05.287+00:00
António Sérgio Azevedo
7,661
Reputation points Microsoft Employee
1 answer
Can't retrieve Azure Spatial Anchor (unity3D, Hololens 2)
About one year ago, I developed an application for Hololens 2 using Azure Spatial Anchors. This application can create, retrieve and delete anchors. It worked well. Today, I tried to use the application again. The anchor creation works but I can not…
asked 2021-08-26T08:01:41.773+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(300.8, 52%, 39%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EOM%3C/text%3E%3C/svg%3E)
Olivier Martineau
1
Reputation point
commented 2021-09-01T11:59:58.33+00:00
Olivier Martineau
1
Reputation point