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[ Module Hierarchy | Class Hierarchy ]

# Module Hierarchy

- pygeodesy: A pure Python implementation of geodesy tools for various ellipsoidal and spherical earth models using precision trigonometric, vector-based, elliptic and approximate methods for geodetic (lat-/longitude) and geocentric (ECEF cartesian) coordinates.
  - pygeodesy.__main__: Print pygeodesy version, etc.
  - pygeodesy.albers: Classes AlbersEqualArea, AlbersEqualArea2, AlbersEqualArea4, AlbersEqualAreaCylindrical, AlbersEqualAreaNorth, AlbersEqualAreaSouth and AlbersError, a transcription of Charles Karney's C++ class AlbersEqualArea.
  - pygeodesy.azimuthal: Azimuthal projection classes Equidistant, EquidistantKarney, Gnomonic, GnomonicKarney, LambertEqualArea, Orthographic, Stereographic and AzimuthalError and functions equidistant and gnomonic.
  - pygeodesy.basics: Basic definitions, decorators and functions.
  - pygeodesy.cartesianBase: (INTERNAL) Base classes for elliposiodal, spherical and N-/vectorial `Cartesian`s.
  - pygeodesy.clipy: Functions to clip a path or polygon of `LatLon` points against a rectangular box or clip region.
  - pygeodesy.css: Cassini-Soldner projection classes CassiniSoldner, Css and CSSError requiring Charles Karney's geographiclib package to be installed.
  - pygeodesy.datums: Classes Datum and Transform and registries thereof, Datums and Transforms, respectively.
  - pygeodesy.deprecated: DEPRECATED classes, functions, etc.
    - pygeodesy.deprecated.bases: DEPRECATED, use module latlonBase instead.
    - pygeodesy.deprecated.datum: DEPRECATED, use module datums or ellipsoids instead.
    - pygeodesy.deprecated.nvector: DEPRECATED, use module nvectorBase instead.
  - pygeodesy.dms: Functions to parse and format bearing, compass, lat- and longitudes in various forms of degrees, minutes and seconds.
  - pygeodesy.ecef: Geocentric conversions transcribed from Charles Karney's C++ classes Geocentric and LocalCartesian into pure Python classes EcefKarney respectively EcefCartesian, class EcefSudano based on John Sudano's paper, class EcefVeness transcribed from Chris Veness' JavaScript classes LatLonEllipsoidal, Cartesian and class EcefYou implementing Rey-Jer You's transformations.
  - pygeodesy.elevations: Functions to obtain elevations and geoid heights thru web services, for (lat, lon) locations, currently limited to the Conterminous US (CONUS), see also module geoids, module heights classes and USGS10mElev.py.
  - pygeodesy.ellipsoidalBase: (INTERNAL) Ellipsoidal base classes `CartesianEllipsoidalBase` and `LatLonEllipsoidalBase`.
  - pygeodesy.ellipsoidalKarney: Ellipsoidal classes geodetic (lat-/longitude) LatLon and geocentric (ECEF) Cartesian and functions areaOf, intersections2, isclockwise, nearestOn and perimeterOf, all based on Charles Karney's Python geographiclib.
  - pygeodesy.ellipsoidalNvector: Ellispdoidal, N-vector-based classes geodetic (lat-/longitude) LatLon, geocentric (ECEF) Cartesian, Ned and Nvector and functions meanOf.
  - pygeodesy.ellipsoidalVincenty: Ellispodial classes for Vincenty's geodetic (lat-/longitude) LatLon, geocentric (ECEF) Cartesian and VincentyError and functions areaOf, intersections2, nearestOn and perimeterOf.
  - pygeodesy.ellipsoids: Classes a_f2Tuple, Ellipsoid, Ellipsoid2, an Ellipsoids registry and a dozen functions to convert equatorial radius, polar radius, eccentricities, flattenings and inverse flattening.
  - pygeodesy.elliptic: Elliptic integrals and functions transcribed from Charles Karney's C++ class EllipticFunction into pure Python class Elliptic.
  - pygeodesy.epsg: Classes Epsg and EPSGError and functions to encode and decode2 European Petroleum Survey Group (EPSG) codes from and to UTM and UPS zones.
  - pygeodesy.errors: Error, exception classes and functions to format PyGeodesy errors, including the setting of exception chaining in Python 3+.
  - pygeodesy.etm: Classes ETMError and Etm, a pure Python transcription of Charles Karney's C++ class TransverseMercatorExact, abbreviated as `TMExact` below.
  - pygeodesy.fmath: Precision floating point functions, utilities and constants.
  - pygeodesy.formy: Formulary of basic geodesy functions and approximations.
  - pygeodesy.frechet: Classes Frechet, FrechetDegrees, FrechetRadians, FrechetCosineAndoyerLambert, FrechetCosineForsytheAndoyerLambert, FrechetCosineLaw, FrechetDistanceTo< FrechetEquirectangular, FrechetEuclidean, FrechetFlatLocal, FrechetFlatPolar, FrechetHaversine, FrechetHubeny, FrechetKarney, FrechetThomas and FrechetVincentys to compute discrete Fréchet distances between two sets of `LatLon`, `NumPy`, `tuples` or other types of points.
  - pygeodesy.gars: Classes Garef and GARSError and several functions to encode, decode and inspect Global Area Reference System (GARS) references.
  - pygeodesy.geohash: Classes Geohash and GeohashError and several functions to encode, decode and inspect geohashes.
  - pygeodesy.geoids: Classes GeoidG2012B, GeoidKarney and GeoidPGM to interpolate the height of various geoids at `LatLon` locations or separate lat-/longitudes using different interpolation methods and `geoid` files.
  - pygeodesy.hausdorff: Classes Hausdorff, HausdorffDegrees, HausdorffRadians, HausdorffCosineAndoyerLambert, HausdorffCosineForsytheAndoyerLambert, HausdorffCosineLaw, HausdorffDistanceTo, HausdorffEquirectangular, HausdorffEuclidean, HausdorffFlatLocal, HausdorffFlatPolar, HausdorffHaversine, HausdorffHubeny, HausdorffKarney, HausdorffThomas and HausdorffVincentys to compute Hausdorff distances between two sets of `LatLon`, `NumPy`, `tuples` or other types of points.
  - pygeodesy.heights: Classes HeightCubic, HeightIDWcosineAndoyerLambert, HeightIDWcosineForsytheAndoyerLambert, HeightIDWcosineLaw, HeightIDWdistanceTo, HeightIDWequirectangular, HeightIDWeuclidean, HeightIDWflatLocal, HeightIDWflatPolar, HeightIDWhaversine, HeightIDWhubeny, HeightIDWkarney, HeightIDWthomas, HeightIDWvincentys, HeightLinear, HeightLSQBiSpline and HeightSmoothBiSpline to interpolate the height of `LatLon` locations or separate lat-/longitudes from a set of `LatLon` points with `known` heights.
  - pygeodesy.interns: Single-instance floats and strings, `intern`'ed across modules.
  - pygeodesy.karney: Wrapper around Charles Karney's Python classes `Geodesic` and `GeodesicLine` and functions `AngDiff`, `AngNormalize`, `LatFix` and `sum` from geographiclib, provided that package is installed.
  - pygeodesy.latlonBase: (INTERNAL) base class LatLonBase for elliposiodal, spherical and n-vectorial `LatLon`s.
  - pygeodesy.lazily: Lazily import `pygeodesy` modules and attributes, based on lazy_import from Brett Cannon's modutil.
  - pygeodesy.lcc: Lambert conformal conic projection for 1- or 2-Standard Parallels classes Conic, Conics registry, LCCError and position class Lcc.
  - pygeodesy.mgrs: Military Grid Reference System (MGRS/NATO) classes Mgrs and MGRSError and functions parseMGRS and toMgrs.
  - pygeodesy.named: (INTERNAL) Classes `_Named`, `_NamedDict` and `_NamedTuple`, all with nameable instances and several subclasses thereof.
  - pygeodesy.namedTuples: (INTERNAL) Classes `_Named`, `_NamedDict` and `_NamedTuple`, all with nameable instances and several subclasses thereof.
  - pygeodesy.nvectorBase: (INTERNAL) Base class LatLonNvectorBase for `n-vectorial` ellipsoidal and spherical `LatLon`s, class NvectorBase for `Cartesian`s and function sumOf.
  - pygeodesy.osgr: Ordinance Survey Grid References (OSGR) classes Osgr an OSGRError and functions parseOSGR and toOsgr.
  - pygeodesy.points: Functions to handle collections and sequences of `LatLon` points specified as 2-d NumPy, `arrays` or tuples as `LatLon` or as `pseudo-x/-y` pairs.
  - pygeodesy.simplify: Seven functions to simplify or linearize a path of `LatLon` points.
  - pygeodesy.sphericalBase: (INTERNAL) Spherical base classes `CartesianSphericalBase` and `LatLonSphericalBase`.
  - pygeodesy.sphericalNvector: N-vector-based classes geodetic (lat-/longitude) LatLon, geocentric (ECEF) Cartesian and Nvector and functions areaOf, intersection, meanOf, nearestOn3, perimeterOf, sumOf, triangulate and trilaterate, all spherical.
  - pygeodesy.sphericalTrigonometry: Trigonometric classes geodetic (lat-/longitude) LatLon and geocentric (ECEF) Cartesian and functions areaOf, intersection, intersections2, isPoleEnclosedBy, meanOf, nearestOn3 and perimeterOf, all spherical.
  - pygeodesy.streprs: Floating point and other formatting utilities.
  - pygeodesy.trf: Terrestrial Reference Frame (TRF) classes RefFrame, registry RefFrames and TRFError.
  - pygeodesy.units: Sub-classes `Float`, `Int` and `Str` from basic `float`, `int` respectively `str` to named units as Degrees, Feet, Meter, Radians, etc.
  - pygeodesy.ups: Universal Polar Stereographic (UPS) classes Ups and UPSError and functions parseUPS5, toUps8 and upsZoneBand5.
  - pygeodesy.utily: Geometric and other utility functions and constants.
  - pygeodesy.utm: Universal Transverse Mercator (UTM) classes Utm and UTMError and functions parseUTM5, toUtm8 and utmZoneBand5.
  - pygeodesy.utmups: Functions parseUTMUPS5, toUtmUps8, UtmUps and utmupsZoneBand5 to handle both Universal Transverse Mercator (UTM) and Universal Polar Stereographic (UPS) coordinates.
  - pygeodesy.utmupsBase: (INTERNAL) Base class `UtmUpsBase` and private functions for the UTM, UPS, Mgrs and Epsg classes/modules.
  - pygeodesy.vector3d: Generic 3-D vector base class Vector3d, class VectorError and functions intersections2, iscolinearWith, nearestOn, parse3d, sumOf and trilaterate3d2.
  - pygeodesy.webmercator: Web Mercator (WM) classes Wm and WebMercatorError and functions parseWM and toWm.
  - pygeodesy.wgrs: Classes Georef and WGRSError and several functions to encode, decode and inspect World Geographic Reference System (WGRS) references.