Microsoft HoloLens Developer???s Guide

Using the stationary frame of reference in DirectX

One of the classes the framework provides is the SpatialLocator, in the Windows.Perception.Spatial namespace. You can get a reference to one by calling the static method GetDefault() on that class. You never instantiate one yourself: there is no public constructor available.

This class is a helper class that helps you find the frame of reference. To do this, all you need to do is call the extremely long-named CreateStationaryFrameOfReferenceAtCurrentLocation() method. This creates a new coordinate system for you, centered around the current position of your device, with the heading in the direction you are looking at. The template we have been using so far does exactly this: in your main ...