nvector._core.n_E_and_wa2R_EL

n_E_and_wa2R_EL(n_E, wander_azimuth, R_Ee=None)

Returns rotation matrix R_EL from n-vector and wander azimuth angle.

R_EL = n_E_and_wa2R_EL(n_E,wander_azimuth) Calculates the rotation matrix (direction cosine matrix) R_EL using n-vector (n_E) and the wander azimuth angle. When wander_azimuth=0, we have that N=L (See Table 2 in Gade (2010) for details)

Parameters:

n_E: 3 x n array

n-vector [no unit] decomposed in E

wander_azimuth: real scalar or array of length n

Angle [rad] between L’s x-axis and north, positive about L’s z-axis.

R_Ee : 3 x 3 array

rotation matrix defining the axes of the coordinate frame E.

Returns:

R_EL: 3 x 3 x n array

The resulting rotation matrix. [no unit]

See also

R_EL2n_E, R_EN2n_E, n_E2R_EN