7.1 Example — Ray
=================

PDF section 7.1. Source script: ``KrakenOS/Examples/Examp_Ray.py``.

Traces a single ray at a small field angle through a BK7/F2 achromatic
doublet and stores it in a ``raykeeper`` for the 3D viewer.

.. figure:: ../../_static/manual/examples/01_ray.png
   :align: center
   :alt: Single ray traced through an optical system

   Figure 8. A single ray traced through an optical system.

.. literalinclude:: ../../../../KrakenOS/Examples/Examp_Ray.py
   :language: python