<< CL_gm_reflectionPtSph Geometry and events CL_gm_stationElevation >>

CelestLab >> Geometry and events > CL_gm_sphericDist

CL_gm_sphericDist

Angle (angular distance) between 2 directions

Calling Sequence

[ang] = CL_gm_sphericDist(p1,p2)

Description

Parameters

p1:

First direction in spherical coordinates: [longitude;latitude] [rad] (2xN)

p2:

Second direction in spherical coordinates: [longitude;latitude] [rad] (2xN)

ang:

Angle between p1 and p2 [rad] (1xN)

Authors

Bibliography

See also

Examples

// Spherical distance between Toulouse (43deg 36' 19"N, 1deg 26' 34"E)
// and Barcelona (41deg 24' 7"N, 2deg 10' 17"E)
tlse_lat = 43 + 36/60 + 19/3600;
tlse_lon = 1 + 26/60 + 34/3600;
bcn_lat = 41 + 24/60 + 7/3600;
bcn_lon = 2 + 10/60 + 17/3600;
tlse_coord = CL_deg2rad([tlse_lon;tlse_lat]);
bcn_coord = CL_deg2rad([bcn_lon;bcn_lat]);
tlse_bcn = CL_gm_sphericDist(tlse_coord,bcn_coord);
disp('Spherical distance : '+string(CL_rad2deg(tlse_bcn))+' deg');
earth_radius = 6378.e3;
disp('Distance : '+string(tlse_bcn*earth_radius/1000)+' km');
<< CL_gm_reflectionPtSph Geometry and events CL_gm_stationElevation >>