Hello,

"A reference point is assumed to be stable point".

This point is input to JAG 3D as reference point or stochatic point. When I input it as datum point, JAG 3D doesn't work.

The congruence analysis module of JAG3D bases on (a combined) free network adjustment. Therefore, only datum- and new points are valid. Thus, all the points, that are assumed to be stable reference points, should imported to a "datum point" group. Points, that are unstable or assumed to be unstable, are "new points".

(In congruence analysis, no stochastic or reference point group may exist. I'm sorry for the ambiguity of the term reference point. My fault!)

kind regards
Micha