Metadata-Version: 2.1
Name: pymap3d
Version: 1.7.6
Summary: pure Python coordinate conversions, following convention of several popular Matlab routines.
Home-page: https://github.com/scivision/pymap3d
Author: Michael Hirsch, Ph.D.
License: UNKNOWN
Description: [![image](https://zenodo.org/badge/DOI/10.5281/zenodo.213676.svg)](https://doi.org/10.5281/zenodo.213676)
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        # Python 3-D coordinate conversions
        
        3-D geographic coordinate conversions, with API similar to popular $1000 Matlab Mapping Toolbox routines for:
        
        * Python
        * [Matlab, GNU Octave](https://github.com/scivision/matmap3d)
        * [modern Fortran](https://github.com/scivision/maptran)
        
        PyMap3D is intended for non-interactive use on massively parallel (HPC) and embedded systems.
        Includes some relevant
        [Vallado's algorithms](http://www.smad.com/vallado/fortran/fortran.html).
        
        [API docs](https://www.scivision.co/pymap3d)
        
        Why not [PyProj](https://github.com/jswhit/pyproj)?
        
        -   PyMap3D does not require anything beyond pure Python + Numpy.
        -   PyMap3D API is similar to Matlab Mapping Toolbox, while PyProj's interface is quite distinct
        -   PyMap3D intrinsically handles local coordinate systems such as ENU,
            while for PyProj ENU requires some [additional
            effort](https://github.com/jswhit/pyproj/issues/105).
        -   PyProj is oriented towards points on the planet surface, while
            PyMap3D handles points on or above the planet surface equally well,
            particularly important for airborne vehicles and remote sensing.
        
        ## Prerequisites
        
        * Python &gt;= 3.6
        * [AstroPy](http://www.astropy.org/) (optional, used for ECI coordinates)
        
        
        ## Install
        
        ```sh
        pip install pymap3d
        ```
        
        or for the latest development code:
        ```sh
        git clone https://github.com/scivision/pymap3d
        
        pip install -e .
        ```
        
        One can verify Python functionality after installation by:
        ```sh
        pip install -e .[tests]
        pytest -rsv
        ```
        
        ## Usage
        
        Where consistent with the definition of the functions, all arguments may
        be arbitrarily shaped (scalar, N-D array).
        
        ```python
        import pymap3d as pm
        
        x,y,z = pm.geodetic2ecef(lat,lon,alt)
        
        az,el,range = pm.geodetic2aer(lat, lon, alt, observer_lat, observer_lon, 0)
        ```
        
        [Python](https://www.python.org/dev/peps/pep-0448/)
        [argument unpacking](https://docs.python.org/3.6/tutorial/controlflow.html#unpacking-argument-lists)
        can be used for compact function arguments with scalars or arbitrarily
        shaped N-D arrays:
        
        ```python
        aer = (az,el,slantrange)
        obslla = (obs_lat,obs_lon,obs_alt)
        
        lla = pm.aer2geodetic(*aer,*obslla)
        ```
        
        where tuple `lla` is comprised of scalar or N-D arrays `(lat,lon,alt)`.
        
        
        ### Functions
        
        Popular mapping toolbox functions ported to Python include the
        following, where the source coordinate system (before the "2") is
        converted to the desired coordinate system:
        
            aer2ecef  aer2enu  aer2geodetic  aer2ned
            ecef2aer  ecef2enu  ecef2enuv  ecef2geodetic  ecef2ned  ecef2nedv
            ecef2eci  eci2ecef
            enu2aer  enu2ecef   enu2geodetic
            geodetic2aer  geodetic2ecef  geodetic2enu  geodetic2ned
            ned2aer  ned2ecef   ned2geodetic
            azel2radec radec2azel
            vreckon vdist
            lookAtSpheroid
        
        Abbreviations:
        
        -   [AER: Azimuth, Elevation, Range](https://en.wikipedia.org/wiki/Spherical_coordinate_system)
        -   [ECEF: Earth-centered, Earth-fixed](https://en.wikipedia.org/wiki/ECEF)
        -   [ECI: Earth-centered Inertial](https://en.wikipedia.org/wiki/Earth-centered_inertial)
        -   [ENU: East North Up](https://en.wikipedia.org/wiki/Axes_conventions#Ground_reference_frames:_ENU_and_NED)
        -   [NED: North East Down](https://en.wikipedia.org/wiki/North_east_down)
        -   [radec: right ascension, declination](https://en.wikipedia.org/wiki/Right_ascension)
        
        ### Caveats
        
        * Atmospheric effects neglected in all functions not invoking AstroPy.
          Would need to update code to add these input parameters (just start a GitHub Issue to request).
        * Planetary perturbations and nutation etc. not fully considered.
        
        
Keywords: coordinate conversion
Platform: UNKNOWN
Classifier: Development Status :: 5 - Production/Stable
Classifier: Environment :: Console
Classifier: Intended Audience :: Science/Research
Classifier: Operating System :: OS Independent
Classifier: Programming Language :: Python :: 3.6
Classifier: Programming Language :: Python :: 3.7
Classifier: Topic :: Scientific/Engineering :: GIS
Requires-Python: >= 3.6
Description-Content-Type: text/markdown
Provides-Extra: full
Provides-Extra: testproj
Provides-Extra: tests
