Package pybelbg

A pure Python implementation of the Belgian hybrid quasi-geoid hBG18 with several Belgian Lambert 2018, -1972s and -1950 conic projections to convert between geodetic lat-, longitudes and (ellipsoidal) height and local easting, northing and (orthometric) height based on bilinear interpolation of quasi-geoid hBG18 heights.

Version: 26.07.29

Submodules

pybelbg.__main__: Run some Be*LBG.forward and .reverse conversion examples.
pybelbg.__pygeodesy: (INTERNAL) pybelbg access to some private pygeodesy attributes.
pybelbg.belbgs: Main classes Be08LBG, Be72LBG, Be72NLBG, Be72RLBG and Be50LBG implementing the Belgian Lambert 2018, -1972, -1972N, -1972R respectively -1950 conic projection and quasi-geoid heights with bilinear interpolation from Belgian hybrid quasi-geoid hBG18.
pybelbg.hBG18: (INTERNAL) Quasi-geoid-heights from the "Belgian hybrid quasi-geoid: hBG18" for 48.5 <= lat <= 52.5 and 1 <= lon <= 7 at increments of 0.01 respectively 0.015 degrees.

Classes
	Be08LBG Belgian Lambert 2008 `pygeodesy.Conics.Be08Lb` converter.
	Be50LBG Belgian Lambert 1950 `pygeodesy.Conics.Be50Lb` converter.
	Be72LBG Belgian Lambert 1972 `pygeodesy.Conics.Be72Lb` converter.
	Be72NLBG Belgian Lambert 1972N `pygeodesy.Conics.Be72NLb` converter.
	Be72RLBG Belgian Lambert 1972R `pygeodesy.Conics.Be72RLb` converter.
	BeLBG7Tuple 7-Tuple `(easting, northing, H, lat, lon, height, beLBG)` with local Belgian `easting`, `northing` and orthometric height `H`, geodetic `lat`, `lon` and ellipsoidal `height` and `beLBG` the `Be*LBG` instance with `lat` and `lon` in `degrees` and with `easting`, `northing`, `H` and `height` in `meter`, conventionally.
	BeLBGError Error raised for `pybelbg`, `hBG18`, unzip and other issues.
	EasNorH3Tuple 3-Tuple `(easting, northing, H)`, all in `meter`, conventionally with orthometric height `H`.
	LatLonN3Tuple 3-tuple `(lat, lon, N)` with geoid height `N` in `meter`, conventionally.
	Lb4Tuple 4-Tuple `(minE, minN, maxE, maxN)` with local `Lambert` lower-left `(minE, minN)` and upper-right `(maxE, maxN)` bounds in `meter`, conventionally.

Functions

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

Variables
	pybelbg_abspath = `'..../PyBeLB...`
	Conics = `Conics.Be72RLb: Conic(name='Be72RLb', lat0=90, lon0=4...`
	Datums = `Datums.Sphere: Datum(name='Sphere', ellipsoid=Ellipso...`

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

pybelbg_abspath

Value:

'..../PyBeLBG/pybelbg'

Conics

Value:

Conics.Be72RLb: Conic(name='Be72RLb', lat0=90, lon0=4.35693972, par1=4
9.83333333, par2=51.16666667, E0=150000.01256, N0=5400088.4378, k0=1, 
SP=2, datum=Datum(name='ED50', ellipsoid=Ellipsoids.Intl1924, transfor
m=Transforms.ED50)),
Conics.Be50Lb: Conic(name='Be50Lb', lat0=90, lon0=4.36748667, par1=49.
83333333, par2=51.16666667, E0=150000, N0=5400000, k0=1, SP=2, datum=D
atum(name='ED50', ellipsoid=Ellipsoids.Intl1924, transform=Transforms.
ED50)),
...

Datums

Value:

Datums.Sphere: Datum(name='Sphere', ellipsoid=Ellipsoids.Sphere, trans
form=Transforms.WGS84),
Datums.NAD83: Datum(name='NAD83', ellipsoid=Ellipsoids.GRS80, transfor
m=Transforms.NAD83),
Datums.OSGB36: Datum(name='OSGB36', ellipsoid=Ellipsoids.Airy1830, tra
nsform=Transforms.OSGB36),
Datums.ED50: Datum(name='ED50', ellipsoid=Ellipsoids.Intl1924, transfo
rm=Transforms.ED50),
...