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authorKristian Evers <kristianevers@gmail.com>2018-02-28 22:37:13 +0100
committerKristian Evers <kristianevers@gmail.com>2018-02-28 22:37:13 +0100
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+.. _natearth:
+
+********************************************************************************
+Natural Earth
+********************************************************************************
++---------------------+--------------------------------------------------------+
+| **Classification** | Pseudo cylindrical |
++---------------------+--------------------------------------------------------+
+| **Available forms** | Forward and inverse, spherical projection |
++---------------------+--------------------------------------------------------+
+| **Defined area** | Global |
++---------------------+--------------------------------------------------------+
+| **Implemented by** | Bernhard Jenny |
++---------------------+--------------------------------------------------------+
+| **Options** |
++---------------------+--------------------------------------------------------+
+| `No special options for this projection` |
++---------------------+--------------------------------------------------------+
+
+.. image:: ./images/natearth.png
+ :scale: 50%
+ :alt: Natural Earth
+
+
+The Natural Earth projection is intended for making world maps. A distinguishing trait
+is its slightly rounded corners fashioned to emulate the spherical shape of Earth.
+The meridians (except for the central meridian) bend acutely inward as they approach
+the pole lines, giving the projection a hint of three-dimensionality. This bending
+also suggests that the meridians converge at the poles instead of truncating at the
+top and bottom edges. The distortion characteristics of the Natural Earth projection
+compare favorably to other world map projections.
+
+
+Usage
+###############################################################################
+
+The Natural Earth projection has no special options so usage is simple. Here is
+an example of an inverse projection on a sphere with a radius of 7500 m::
+
+ $ echo 3500 -8000 | proj -I +proj=natearth +a=7500
+ 37d54'6.091"E 61d23'4.582"S
+
+
+Further reading
+################################################################################
+
+#. `Wikipedia <https://en.wikipedia.org/wiki/Natural_Earth_projection>`_