Home | Trees | Indices | Help |
|
---|
|
Formulary of basic geodesy functions and approximations.
Version: 20.03.29
Functions | |||
|
|||
|
|||
|
|||
|
|||
|
|||
|
|||
|
|||
|
|||
|
|||
|
|||
|
|||
|
|||
|
|||
|
|||
|
|||
|
|||
|
|||
|
|||
|
|||
|
|||
|
|||
|
|||
|
|||
|
|||
|
|||
|
Variables | |
__all__ = _ALL_LAZY.formy
|
Function Details |
Return the antipode, the point diametrically opposite to a given point
in
See Also: Geosphere. |
Return the antipode, the point diametrically opposite to a given point
in
See Also: Geosphere. |
Compute the initial or final bearing (forward or reverse azimuth) between a (spherical) start and end point.
|
Compute the initial or final bearing (forward or reverse azimuth) between a (spherical) start and end point.
|
Return the angle from North for the direction vector (lon2 - lon1, lat2 - lat1) between two points. Suitable only for short, non-near-polar vectors up to a few hundred Km or Miles. Use function bearing for longer vectors.
Note: Courtesy Martin Schultz. See Also: Local, flat earth approximation. |
Compute the distance between two points using the Equirectangular Approximation / Projection.
See Also:
Function equirectangular_ for more details, the available
|
Compute the distance between two points using the Equirectangular Approximation / Projection. This approximation is valid for short distance of several hundred Km
or Miles, see the
See Also:
Local, flat earth approximation, functions equirectangular, euclidean, haversine, vincentys, flatLocal and flatPolar and methods Ellipsoid.distance2,
|
Approximate the
See Also:
Distance between two (spherical) points,
functions equirectangular, haversine, vincentys, flatLocal and flatPolar and methods Ellipsoid.distance2,
|
Approximate the angular
See Also: Functions euclidean, equirectangular_, haversine_, vincentys_, flatLocal_ and flatPolar_. |
Compute the distance between two (ellipsoidal) points using the ellipsoidal Earth to plane projection fromula.
Note: The meridional and prime_vertical radii of curvature are taken and scaled at the mean latitude. See Also: Functions flatLocal_, flatPolar, equirectangular, euclidean, haversine and vincentys and method Ellipsoid.distance2 and local, flat earth approximation. |
Compute the distance between two (ellipsoidal) points using the ellipsoidal Earth to plane projection fromula.
Note: The meridional and prime_vertical radii of curvature are taken and scaled at the mean latitude. See Also: Functions flatLocal, flatPolar_, equirectangular_, euclidean_, haversine_ and vincentys_ and local, flat earth approximation. |
Compute the distance between two (spherical) points using the polar coordinate flat-Earth formula.
See Also: Functions flatPolar_, flatLocal, equirectangular, euclidean, haversine and vincentys. |
Compute the angular distance between two (spherical) points using the polar coordinate flat-Earth formula.
See Also: Functions flatPolar, flatLocal_, equirectangular_, euclidean_, haversine_ and vincentys_. |
Compute the distance between two (spherical) points using the Haversine formula.
See Also:
Distance between two (spherical) points,
functions equirectangular, euclidean, vincentys, flatLocal and flatPolar and methods Ellipsoid.distance2,
Note: See note under vincentys_. |
Compute the angular distance between two (spherical) points using the Haversine formula.
See Also: Functions haversine, equirectangular_, euclidean_, vincentys_, flatLocal_ and flatPolar_. Note: See note under vincentys_. |
Determine the height above the (spherical) earth after traveling along a straight line at a given tilt.
|
Determine the distance to the horizon from a given altitude above the (spherical) earth.
See Also: Distance to horizon. |
Check whether two points are antipodal, on diametrically opposite sides of the earth.
See Also: Geosphere. |
Check whether two points are antipodal, on diametrically opposite sides of the earth.
See Also: Geosphere. |
Convert lat-, longitude to
See Also: Function philam2n_xyz. Note:
These are |
Convert
See Also: Function n_xyz2philam. |
Convert
See Also: Function n_xyz2latlon. |
Convert lat-, longitude to
See Also: Function latlon2n_xyz. Note:
These are |
Check a path or polygon represented by points.
|
Compute the distance between two (spherical) points using Vincenty's spherical formula.
See Also:
Functions vincentys_, equirectangular, euclidean, haversine, flatLocal and flatPolar and methods Ellipsoid.distance2,
Note: See note under vincentys_. |
Compute the angular distance between two (spherical) points using Vincenty's spherical formula.
See Also: Functions vincentys, equirectangular_, euclidean_, haversine_, flatLocal_ and flatPolar_. Note: Functions vincentys_ and haversine_ produce equivalent results, but vincentys_ is suitable for antipodal points and slightly more expensive than haversine_ (3 cos, 3 sin, 1 hypot, 1 atan2, 6 mul, 2 add versus 2 cos, 2 sin, 2 sqrt, 1 atan2, 5 mul, 1 add). |
Home | Trees | Indices | Help |
|
---|
Generated by Epydoc 3.0.1 on Sat Mar 28 12:58:01 2020 | http://epydoc.sourceforge.net |