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.. _aeqd:
********************************************************************************
Azimuthal Equidistant
********************************************************************************
+---------------------+----------------------------------------------------------+
| **Classification** | Azimuthal |
+---------------------+----------------------------------------------------------+
| **Available forms** | Forward and inverse, spherical and ellipsoidal |
+---------------------+----------------------------------------------------------+
| **Alias** | aeqd |
+---------------------+----------------------------------------------------------+
| **Domain** | 2D |
+---------------------+----------------------------------------------------------+
| **Input type** | Geodetic coordinates |
+---------------------+----------------------------------------------------------+
| **Output type** | Projected coordinates |
+---------------------+----------------------------------------------------------+
.. figure:: ./images/aeqd.png
:width: 500 px
:align: center
:alt: Azimuthal Equidistant
proj-string: ``+proj=aeqd``
Options
################################################################################
.. note:: All options are optional for the Azimuthal Equidistant projection.
.. option:: +guam
Use Guam ellipsoidal formulas. Only accurate near the Island of Guam
(:math:`\lambda\approx 144.5^{\circ}`, :math:`\phi\approx 13.5^{\circ}`)
.. include:: ../options/lat_0.rst
.. include:: ../options/lon_0.rst
.. include:: ../options/x_0.rst
.. include:: ../options/y_0.rst
.. include:: ../options/ellps.rst
.. include:: ../options/R.rst
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