4.8.3.6. EULERANGLE

EULERANGLE subroutine returns an Euler angle from an inputted orientation matrix.

Table 4.57 Function Name
Language type	Subroutine
FORTRAN	call eulerangle(EAtype, A, EA, Errflg)
C/C++	Eulerangle(EAtype, A, EA, &Errflg)

Table 4.58 Parameter information
Variable Name	Size	Description
EAtype	int	Euler angle type. EAtype should be “313”, “321” or “123” value. 313: Euler angle ZXZ (Psi, Theta, Phi). 321: Euler angle ZYX (Yaw-Pitch-Roll). 123: Euler angle XYZ (Theta_x, Theta_y, Theta_z)
A	double[9]	An array of double precision type. The array size must be 9. This is input variables as an orientation matrix.
EA	double[3]	An array of double type. The array size must be 3. This is output variables as an Euler angle. EA[0] is a 1^st rotate angle of each Euler angle. EA[1] is a 2^nd rotate angle. EA[2] is a 3^rd rotate angle.
errflg	int	Error flag. If the result of this argument is -1 (means TRUE in Fortran logical value), there is no error. The others mean that there is an error.

Code Example

Refer to GET_FFLEX_NODEPOS.