Angle About X (AX)

Returns the rotational displacement (in radians) of one coordinate system marker about the x-axis of another.

Format

AX (To Marker, From Marker)

Arguments

 
To Marker
(Required) The coordinate system marker whose rotation is being measured.
From Marker
(Optional) The coordinate system marker with respect to which the rotation is being measured. If you don't specify this argument, it defaults to the global coordinate system.

Equation

Mathematically, AX is calculated as follows:
where:
is the y-axis of the To Marker, T.
is the y-axis of the From Marker, F.
is the z-axis of the From Marker, F.

Example

The following function returns the angle between the y-axes of marker_T and marker_F:
 
Function
AX(marker_T, marker_F)
Result
0.5235 or /6