Spectrum.select_r
=================
Part of a set of parameters which define a spherical region of space from which
photons are to be extracted. select_r defines the radius of the spherical region

Type
  Double

Unit
  cm

Values
  Greater than 0

File
  `setup.c <https://github.com/sirocco-rt/sirocco/blob/master/source/setup.c>`_


Parent(s)
  * :ref:`Spectrum.select_location`: spherical_region