.. _poly:

********************************************************************************
Polyconic (American)
********************************************************************************

.. figure:: ./images/poly.png
   :width: 500 px
   :align: center
   :alt:   Polyconic (American)  

   proj-string: ``+proj=poly``

Parameters
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.. note:: All parameters are optional for projection.

.. include:: ../options/lon_0.rst

.. include:: ../options/ellps.rst

.. include:: ../options/R.rst

.. include:: ../options/x_0.rst

.. include:: ../options/y_0.rst