nvector package¶
Geodesic functions¶
lat_lon2n_E (latitude, longitude[, R_Ee]) |
Converts latitude and longitude to n-vector. |
n_E2lat_lon (n_E[, R_Ee]) |
Converts n-vector to latitude and longitude. |
n_EB_E2p_EB_E (n_EB_E[, depth, a, f, R_Ee]) |
Converts n-vector to Cartesian position vector in meters. |
p_EB_E2n_EB_E (p_EB_E[, a, f, R_Ee]) |
Converts Cartesian position vector in meters to n-vector. |
n_EA_E_and_n_EB_E2p_AB_E (n_EA_E, n_EB_E[, ...]) |
Return the delta vector from position A to B. |
n_EA_E_and_p_AB_E2n_EB_E (n_EA_E, p_AB_E[, ...]) |
Return position B from position A and delta. |
n_EA_E_and_n_EB_E2azimuth (n_EA_E, n_EB_E[, ...]) |
Return azimuth from A to B, relative to North: |
n_EA_E_distance_and_azimuth2n_EB_E (n_EA_E, ...) |
Return position B from azimuth and distance from position A |
great_circle_distance (n_EA_E, n_EB_E[, radius]) |
Return great circle distance between two positions |
euclidean_distance (n_EA_E, n_EB_E[, radius]) |
Return Euclidean distance between two positions |
mean_horizontal_position (n_EB_E) |
Return the n-vector of the horizontal mean position. |
Rotation matrices and angles¶
n_E2R_EN (n_E[, R_Ee]) |
Returns the rotation matrix R_EN from n-vector. |
n_E_and_wa2R_EL (n_E, wander_azimuth[, R_Ee]) |
Returns rotation matrix R_EL from n-vector and wander azimuth angle. |
R_EL2n_E (R_EL) |
Returns n-vector from the rotation matrix R_EL. |
R_EN2n_E (R_EN) |
Returns n-vector from the rotation matrix R_EN. |
R2xyz (R_AB) |
Returns the angles about new axes in the xyz-order from a rotation matrix. |
R2zyx (R_AB) |
Returns the angles about new axes in the zxy-order from a rotation matrix. |
xyz2R (x, y, z) |
Returns rotation matrix from 3 angles about new axes in the xyz-order. |
zyx2R (z, y, x) |
Returns rotation matrix from 3 angles about new axes in the zyx-order. |
Misc functions¶
nthroot (x, n) |
Return the n’th root of x to machine precision |
deg (rad_angle) |
Converts angle in radians to degrees. |
rad (deg_angle) |
Converts angle in degrees to radians. |
unit (vector[, norm_zero_vector]) |
Convert input vector to a vector of unit length. |
OO interface to Geodesic functions¶
FrameE ([a, f, name, axes]) |
Earth-fixed frame |
FrameN (position) |
North-East-Down frame |
FrameL (position[, wander_azimuth]) |
Local level, Wander azimuth frame |
FrameB (position[, yaw, pitch, roll, degrees]) |
Body frame |
ECEFvector (pvector[, frame]) |
Geographical position given as Cartesian position vector in frame E |
GeoPoint (latitude, longitude[, z, frame, ...]) |
Geographical position given as latitude, longitude, depth in frame E |
Nvector (normal[, z, frame]) |
Geographical position given as n-vector and depth in frame E |
GeoPath (positionA, positionB) |
Geographical path between two positions in Frame E |
Pvector (pvector, frame) |
|
diff_positions (positionA, positionB) |
Return delta vector from positions A to B. |