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.. _krovak:
********************************************************************************
Krovak
********************************************************************************
+---------------------+----------------------------------------------------------+
| **Classification** | Conical |
+---------------------+----------------------------------------------------------+
| **Available forms** | Forward and inverse, spherical and ellipsoidal |
+---------------------+----------------------------------------------------------+
| **Defined area** | Global, but more accurate around Czechoslovakia |
+---------------------+----------------------------------------------------------+
| **Alias** | krovak |
+---------------------+----------------------------------------------------------+
| **Domain** | 2D |
+---------------------+----------------------------------------------------------+
| **Input type** | Geodetic coordinates |
+---------------------+----------------------------------------------------------+
| **Output type** | Projected coordinates |
+---------------------+----------------------------------------------------------+
.. figure:: ./images/krovak.png
:width: 500 px
:align: center
:alt: Krovak
proj-string: ``+proj=krovak``
Parameters
################################################################################
.. note:: All parameters are optional for the Krovak projection.
The latitude of pseudo standard parallel is hardcoded to 78.5° and
the ellipsoid to Bessel.
.. option:: +czech
Reverse the sign of the output coordinates, as is tradition in the
Czech Republic.
.. option:: +lon_0=<value>
Longitude of projection center.
*Defaults to 24°50' (24.8333333333333)*
.. option:: +lat_0=<value>
Latitude of projection center.
*Defaults to 49.5*
.. option:: +k_0=<value>
Scale factor. Determines scale factor used in the projection.
*Defaults to 0.9999*
.. include:: ../options/x_0.rst
.. include:: ../options/y_0.rst
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