Based on this previous question, but slightly different: Find a point using multilateration or triangulation
Suppose we have 3 points in a 3d coordinate system with the following locations.
A=(100,0,0) B=(0,100,100) C=(0,0,100)
If there is a 4th point, D, that has its angles known when pointed toward the other three points, can its location be found? If so, how would I find the coordinates? More known points can be added.
This is another similar question that has a useful picture that goes along with it: How can I find the coord of the 4th point only by the known coords of the other three points and the angles?
This question has many answers, but it is in 2d: Find 3rd point of triangle given two points and one angle Would more points be needed for 3d?