| EV2Q {RSpincalc} | R Documentation |
Convert from Euler Vectors to rotation Quaternions
Description
EV2Q converts from Euler Vectors (EV) to Quaternions (Q).
Usage
EV2Q(EV, tol = 10 * .Machine$double.eps, ichk = FALSE, ignoreAllChk = FALSE)
Arguments
EV |
Euler Vectors (EV) vector [m1, m2, m3, MU]. |
tol |
Tolerance from deviations from unity for the determinant of rotation matrices or the the vector length for unitary vectors. |
ichk |
Logical, FALSE=disables near-singularity warnings. |
ignoreAllChk |
Logical, TRUE=disables all warnings and error checks (use with caution!). |
Value
Quaternions (Q) vector [q1, q2, q3, q4].
Author(s)
Jose Gama
References
by John Fuller, 14 Jul 2008 SpinCalc, Function to Convert between DCM, Euler angles, Quaternions, and Euler vectors. http://www.mathworks.com/matlabcentral/fileexchange/20696-function-to-convert-between-dcm–euler-angles–quaternions–and-euler-vectors
Paolo de Leva, 01 May 2013 SpinConv, Conversion from a rotation representation type to another. http://www.mathworks.com/matlabcentral/fileexchange/41562-spinconv
See Also
Examples
EV <- c(-0.1995301, -0.8765382, -0.4380279, 114.4324 * (pi/180))
EV2Q(EV,1e-7)
#EV2Q(EV)