The following table displays the relation between different axis assignments.
You | Soleil | E4C ---------------------- Phi | Phi | Phi Chi | Chi | Chi Eta | Omega | Omega Delta | Delta | TwoTheta Mu | Mu | 0 Nu | Gamma | 0
The column 'You' refers to the paper, “Angle calculations for a '4s+2D' six-circle difractometer”, H. You, J. Appl. Cryst. (1999), 32, 614-623.