pygeodesy.nvectorBase

Module nvectorBase

(INTERNAL) Private elliposiodal and spherical Nvector base classes LatLonNvectorBase and NvectorBase and function sumOf.

Pure Python implementation of n-vector-based geodesy tools for ellipsoidal earth models, transcoded from JavaScript originals by (C) Chris Veness 2005-2016 and published under the same MIT Licence**, see Vector-based geodesy.

Version: 24.04.07

Classes

NvectorBase
Base class for ellipsoidal and spherical Nvectors.

LatLonNvectorBase
(INTERNAL) Base class for n-vector-based ellipsoidal and spherical LatLon classes.

Functions

sumOf(nvectors, Vector=None, h=None, **Vector_kwds)
Return the vectorial sum of two or more n-vectors.

Variables

__all__ = _ALL_LAZY.nvectorBase

NorthPole = NvectorBase(0.0, 0.0, 1.0)

SouthPole = NvectorBase(0.0, 0.0, -1.0)

Function Details

sumOf (nvectors, Vector=None, h=None, **Vector_kwds)

Return the vectorial sum of two or more n-vectors.

Arguments:

nvectors - Vectors to be added (Nvector[]).
Vector - Optional class for the vectorial sum (Nvector) or None.
h - Optional height, overriding the mean height (meter).
Vector_kwds - Optional, additional Vector keyword arguments, ignored if Vector is None.

Returns:

Vectorial sum (Vector) or a Vector4Tuple(x, y, z, h) if Vector is None.

Raises:

VectorError - No nvectors.