I'm building an app which will allow users to place objects on the bottom side of a truck trailer. So the user starts in front of the truck and walks down a trench below the truck and scans the bottom of the truck. I'm using the Spatial Understanding for this.
When this is done the user has to define the point of origin of the coordinate system. The client wants this to be at the front of the truck in the middle at height of the road. Thus this point will float in the middle of the trench. I was thinking of placing a world anchor there.
Now the objects to be placed will be more than 5 meters away from that point of origin. From what I read it is not advisable to do this. What would be the best way to place holograms and maintain a high accuracy in relation to that point of origin.
To reiterate, I have to place objects in the world and need pretty accurate coordinates in relation to some arbitrary coordinate system with a point of origin that can be more than 5 meters away. Does anyone have experience with such a scenario and what the obvious obstacles are?