| 
 Name  | 
 Value  | 
 Description  | 
|---|---|---|
| 
 None  | 
 0  | 
 The convention for the rotation angles is not set.  | 
| 
 XYZ  | 
 1  | 
 The convention for the rotation angles is X - Y` - Z``.  | 
| 
 ZYX  | 
 2  | 
 The convention for the rotation angles is Z - Y` - X``.  | 
| 
 ZXY  | 
 3  | 
 The convention for the rotation angles is Z - X` - Y``.  | 
Execution sequence of the rotation angles of an orientation of a coordinate system:
In this example, the orientation convention is ET_OrientationConvention.XYZ.
| 1 | 
 Rotation of the coordinate system CS1 around its X axis. This creates the coordinate system CS2.  | 
| 2 | 
 Rotation of the coordinate system CS2 around its Y axis. This creates the coordinate system CS3.  | 
| 3 | 
 Rotation of the coordinate system CS3 around its Z axis. This creates the coordinate system CS4.  |