PyGeodesy Pure Python geodesy tools ========= PyGeodesy ========= A pure Python implementation of geodesy tools for various ellipsoidal and spherical earth models using precision trigonometric and vector-based methods for geodetic (lat-/longitude) and geocentric cartesian (x/y/z) coordinates. Transcribed from `JavaScript originals`_ by *Chris Veness (C) 2005-2016* and published under the same `MIT License`_. There are two modules for ellipsoidal earth models, *ellipsoidalVincenty* and *-Nvector* and two for spherical ones, *sphericalTrigonometry* and *-Nvector* . Each module provides a *LatLon* class with methods to compute distance, initial and final bearing, intermediate points and conversions, among other things. For more information and further details see the documentation, descriptions of `Latitude/Longitude`_, Vincenty_ and `Vector-based`_ geodesy and the original `JavaScript source`_ or docs_. Also included are modules for conversions to and from UTM_ (Universal Transverse Mercator) coordinates, MGRS_ (NATO Military Grid Reference System) and OSGR_ (British Ordinance Survery Grid Reference) grid references and a module for encoding and decoding Geohashes_. Two other modules provide Lambert conformal conic projections and positions (from `John P. Snyder`_, *Map Projections -- A Working Manual*, 1987, pp 107-109) and several functions to simplify_ or linearize a path of *LatLon* points, including implementations of the `Ramer-Douglas-Peucker`_ and `Visvalingam-Whyatt`_ algorithms and modified versions of both. All Python source code has been statically checked_ with PyChecker_, PyFlakes_, PyCodeStyle_ (formerly Pep8) and McCabe_ using Python 2.7.10 or 2.7.13 and with Flake8_ on Python 3.6.0 or 3.6.1. The tests have been run with 64-bit Python 2.6.9, 2.7.13, 3.5.3 and 3.6.1, but only on MacOSX 10.10 Yosemite, MacOSX 10.11 El Capitan or macOS 10.12.2, 10.12.3, 10.12.4 or 10.12.5 Sierra and with Pythonista 3.1 using Python 2.7.12 and 3.5.1 on iOS 10.3.2. In addition to the PyGeodesy_ package, the distribution files contain the tests, the test results and the complete documentation generated by Epydoc_ using command line: ``epydoc --html --no-private --no-source --name=PyGeodesy --url=... -v pygeodesy``. Some function and method names differ from the JavaScript version. In such cases documentation tag **JS name:** shows the original JavaScript name. *Last updated: July 18, 2017.* .. _checked: http://code.activestate.com/recipes/546532 .. _docs: http://www.movable-type.co.uk/scripts/js/geodesy/docs .. _Epydoc: http://pypi.python.org/pypi/epydoc .. _Flake8: http://pypi.python.org/pypi/flake8 .. _Geohashes: http://www.movable-type.co.uk/scripts/geohash.html .. _JavaScript originals: http://github.com/chrisveness/geodesy .. _JavaScript source: http://github.com/chrisveness/geodesy .. _John P. Snyder: http://pubs.er.USGS.gov/djvu/PP/PP_1395.pdf .. _Latitude/Longitude: http://www.movable-type.co.uk/scripts/latlong.html .. _McCabe: http://pypi.python.org/pypi/mccabe .. _MGRS: http://www.movable-type.co.uk/scripts/latlong-utm-mgrs.html .. _MIT License: http://opensource.org/licenses/MIT .. _OSGR: http://www.movable-type.co.uk/scripts/latlong-os-gridref.html .. _PyChecker: http://pypi.python.org/pypi/pychecker .. _PyCodeStyle: http://pypi.python.org/pypi/pycodestyle .. _PyFlakes: http://pypi.python.org/pypi/pyflakes .. _PyGeodesy: http://pypi.python.org/pypi/PyGeodesy .. _Ramer-Douglas-Peucker: http://wikipedia.org/wiki/Ramer-Douglas-Peucker_algorithm .. _simplify: http://bost.ocks.org/mike/simplify .. _UTM: http://www.movable-type.co.uk/scripts/latlong-utm-mgrs.html .. _Vector-based: http://www.movable-type.co.uk/scripts/latlong-vectors.html .. _Vincenty: http://www.movable-type.co.uk/scripts/latlong-vincenty.html .. _Visvalingam-Whyatt: http://hydra.hull.ac.uk/resources/hull:8338 ``Copyright (C) 2016-2017 -- mrJean1 at Gmail dot com`` ``Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:`` ``The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.`` ``THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.`` Jean M. Brouwers 106cc0c18791a39035ec9bd1ca086b86ab0a883f 17.7.18