Package pyaxqg

A pure Python implementation of a biaxial and triaxial reference ellipsoid for the Earth with conversion between geodetic lat-, longitude with ellipsoidal height h and cartesian X, Y, Z with orthometric height H using bilinear interpolation of quasi-geoid heights axN from bi- and triaxial, 1-degree, whole Earth grids.

The 5 grids are columns Nbiaxial, xE, xyE, xzE and Ntriaxial from Supplementary file 2, zipped.

See pygeodesy.geoids for other pure Python geoid implementations and height interpolations.

See the pyaxqg main module for some usage examples and comparison with the pygeodesy.GeoidKarney results.

Version: 26.08.28

Submodules

pyaxqg.__main__: Run some Ax*QG.forward and .reverse conversion examples.
pyaxqg.__pygeodesy: (INTERNAL) pyaxqg access to some private pygeodesy attributes.
pyaxqg.axqgs: Classes Ax2QG and Ax3QG implement a WGS84 biaxial respectively EGM2008 triaxial reference ellipsoid and bilinear interpolation of quasi-geoid height N and cartesian X, Y, Z from self-contained, 1-degree, whole Earth grids.

Classes
	Ax2QG Biaxial `WGS84` transformer.
	Ax3QG Triaxial `EGM2008` transformer.
	Ax5QG Triaxial `EGM2008` transformer using `SciPy` bivariate spline interpolations.
	AxQG8Tuple 8-Tuple `(x, y, z, H, lat, lon, height, axQG)` with cartesian `x`, `y`, `z` and orthometric height `H`, geodetic `lat`, `lon` and ellipsoidal `height`, `axQG` the `Ax*QG` instance with `lat` and `lon` in `degrees` and with `x`, `y`, `z`, `H` and `height` in `meter`, conventionally.
	AxQGError Error raised for `pyaxqg`, `axQG` and other issues.
	AxyzHeight4Tuple 4-tuple `(x, y, z, H)` with orthometric height `H`, all in `meter`, conventionally.
	AxyzNgeoid4Tuple 4-tuple `(x, y, z, H)` with geoid height `N`, all in `meter`, conventionally.
	Axyzheight4Tuple 4-tuple `(x, y, z, h)` with ellipsoidal height `h`, all in `meter`, conventionally.
	Bounds4Tuple 4-Tuple `(latS, lonW, latN, lonE)` with the bounds' lower-left `(LatS, LonW)` and upper-right `(latN, lonE)` corner lat- and longitudes.
	LatLonNgeoid3Tuple 3-Tuple `(lat, lon, N)` with geoid height `N` in `meter`, conventionally.
	TriAxial Ordered `pygeodesy.Triaxial3` for Ax3QG and Ax2QG.
	Vector3Tuple 3-Tuple `(x, y, z)` of (geocentric) components, all in `meter` or the same `units`.
	_AxQGbase (INTERNAL) `Ax*QG` base class.

Functions

machine()
Return standard platform.machine, but distinguishing Intel native from Intel emulation on Apple Silicon (on macOS only).

Variables
	pyaxqg_abspath = `'..../PyAxQG/...`
	INT0 = `0`

Function Details

machine()

Return standard platform.machine, but distinguishing Intel native from Intel emulation on Apple Silicon (on macOS only).

Returns:: Machine 'arm64' for Apple Silicon native, 'x86_64' for Intel native, "arm64_x86_64" for Intel emulation, etc. (str with commas replaced by underscores).

Variables Details

pyaxqg_abspath

Value:

'..../PyAxQG/pyaxqg'