pygeodesy.webmercator

Pure Python implementation of a Web Mercator (aka Pseudo-Mercator) class and conversion functions for spherical and near-spherical earth models.

Parse a string "e n [r]" representing a WM coordinate, consisting of easting, northing and an optional radius.

Arguments:

strWM - A WM coordinate (str).
radius - Optional earth radius (meter), needed in case strWM doesn't include r.
Wm - Optional class to return the WM coordinate (Wm) or None.
name - Optional name (str).

Returns:

The WM coordinate (Wm) or an EasNorRadius3Tuple

(easting, northing, 
          radius)

if Wm is None.

Raises:

Convert a lat-/longitude point to a WM coordinate.

Arguments:

latlon - Latitude (degrees) or an (ellipsoidal or spherical) geodetic LatLon point.
lon - Optional longitude (degrees or None).
earth - Earth radius (meter), datum or ellipsoid (Datum, a_f2Tuple, Ellipsoid or Ellipsoid2), overridden by latlon's datum if present.
Wm - Optional class to return the WM coordinate (Wm) or None.
name - Optional name (str).
Wm_kwds - Optional, additional Wm keyword arguments, ignored if Wm is None.

Returns:

The WM coordinate (Wm) or if Wm is None an EasNorRadius3Tuple

(easting, northing, 
          radius)

Raises:

ValueError - If lon value is missing, if latlon is not scalar, if latlon is beyond the valid WM range and pygeodesy.rangerrors is set to True or if earth is invalid.

Classes
	EasNorRadius3Tuple 3-Tuple `(easting, northing, radius)`, all in `meter`.
	WebMercatorError Web Mercator (WM) parser or Wm issue.
	Wm Web Mercator (WM) coordinate.

Variables
	__all__ = `_ALL_LAZY.webmercator`

Module webmercator