Adams Basic Package > Adams View > View Function Builder > Design-Time Functions > Functions: M - P > PHI

PHI

Returns the third angle associated with a Body 313 rotation sequence from one coordinate system object to another. This third rotation is referred to as the phi, , angle, and is used in association with the psi, , (1st rotation) and theta, , (2nd rotation) angles.
Positive angular displacement is determined by the right-hand rule.

Format

PHI (Object, Reference Frame)

Arguments

 
Object
Coordinate system object whose rotation is being measured.
Reference Frame
Coordinate system marker with respect wi which the rotation is being measured.

Example

The following example illustrates the use of the PHI function:
PHI(marker_O, marker_R)
See the illustration for PSI.
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