nvector._core.n_EA_E_and_n_EB_E2azimuth

n_EA_E_and_n_EB_E2azimuth(n_EA_E, n_EB_E, a=6378137, f=0.0033528106647474805, R_Ee=None)

Return azimuth from A to B, relative to North:

Parameters:

n_EA_E, n_EB_E: 3 x n array

n-vector(s) [no unit] of position A and B, respectively, decomposed in E.

a: real scalar, default WGS-84 ellipsoid.

Semi-major axis of the Earth ellipsoid given in [m].

f: real scalar, default WGS-84 ellipsoid.

Flattening [no unit] of the Earth ellipsoid. If f==0 then spherical Earth with radius a is used in stead of WGS-84.

R_Ee : 3 x 3 array

rotation matrix defining the axes of the coordinate frame E.

Returns:

azimuth: n array

Angle [rad] the line makes with a meridian, taken clockwise from north.