.. _example_35:

(35) Spherical triangulation and distance calculations
------------------------------------------------------

The script produces the plot in Figure. Here
we demonstrate how :doc:`sphtriangulate </sphtriangulate>` and
:doc:`sphdistance </sphdistance>` are used to compute the Delauney and
Voronoi information on a sphere, using a decimated GSHHG crude coastline.
We show a color image of the distances, highlighted with 500-km contours,
and overlay the Voronoi polygons in green. Finally, the continents are
placed on top.

.. literalinclude:: /_verbatim/example_35.txt
   :language: bash

.. figure:: /_images/example_35.*
   :width: 500 px
   :align: center

   Spherical triangulation and distance calculations