Hello,
I am using ArcMap 10.4.1.
My question does not pertain directly to ArcMap, but to an excel 3d similarity transformation calculator I am attempting to develop. I am using a decent text reference (Datums and Map Projections, by JC Iliffe) that gives me 4 of the matrix (vector) relationships but, beyond setting the provisional values to zero as a first approximation, I am unclear what additional assumptions are being made to solve all the variables such as rotations about each axis, lambda, etc.. My example is not a 3d Helmert 7 parameter type, which I would actually prefer. So I have to ask, does anyone
