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.. _wag3:
********************************************************************************
Wagner III
********************************************************************************
+---------------------+----------------------------------------------------------+
| **Classification** | Pseudocylindrical |
+---------------------+----------------------------------------------------------+
| **Available forms** | Forward and inverse, spherical projection |
+---------------------+----------------------------------------------------------+
| **Defined area** | Global |
+---------------------+----------------------------------------------------------+
| **Alias** | wag3 |
+---------------------+----------------------------------------------------------+
| **Domain** | 2D |
+---------------------+----------------------------------------------------------+
| **Input type** | Geodetic coordinates |
+---------------------+----------------------------------------------------------+
| **Output type** | Projected coordinates |
+---------------------+----------------------------------------------------------+
.. figure:: ./images/wag3.png
:width: 500 px
:align: center
:alt: Wagner III
proj-string: ``+proj=wag3``
.. math::
x &= [\cos\phi_{ts} / \cos ( 2\phi_{ts} / 3)] \lambda \cos (2\phi /3)
y = \phi
Parameters
################################################################################
.. note:: All parameters are optional for the projection.
.. include:: ../options/lat_ts.rst
.. include:: ../options/lon_0.rst
.. include:: ../options/R.rst
.. include:: ../options/x_0.rst
.. include:: ../options/y_0.rst
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