Hello Antoine,

We would like to know if the default adjustement of JAG3D was done in XYZ or XY+Z.

There is no default. If observations allow a spatial network adjustment, for instance by providing slope distances or zenith angles, JAG3D will adjust a spatial XYZ network. If a network consists of set of directions, horizontal distances and leveling date, the adjustment is of XY+Z type. So, depending on the data, JAG3D adjusts a spatial network, a horizontal network, a leveling network or a combined network (XY+Z).

Kind regards
Micha