The Mixed Reality Forums here are no longer being used or maintained.
There are a few other places we would like to direct you to for support, both from Microsoft and from the community.
The first way we want to connect with you is our mixed reality developer program, which you can sign up for at https://aka.ms/IWantMR.
For technical questions, please use Stack Overflow, and tag your questions using either hololens or windows-mixed-reality.
If you want to join in discussions, please do so in the HoloDevelopers Slack, which you can join by going to https://aka.ms/holodevelopers, or in our Microsoft Tech Communities forums at https://techcommunity.microsoft.com/t5/mixed-reality/ct-p/MicrosoftMixedReality.
And always feel free to hit us up on Twitter @MxdRealityDev.
Registration with Spatial Mapping
I would like to build an App, that allows me to predefined the position of holograms in a pre-scanned space( the objects should be placed in Unity). When the app starts on the hololens it should compare the live spatial mapping with the pre-scanned one and align the pre-scanned (and so the holograms). If seen some discussion but non of them seem to have a solution.
Is there any solution for this user case?