__init__

LinComb.__init__(choices=None, **kwargs)

Class to generate linear-combinations of scattering distribution functions.

For details please look at the documentation (http://rt1.readthedocs.io/en/latest/model_specification.html#linear-combination-of-scattering-distributions)

Parameters:

choices ([ (float, ScatterObject) , (float, ScatterObject) , ...]) –

A list that contains the the individual scattering functions and the associated weighting-factors for the linear-combination.

The weights can be either numerical values or strings (which will be parsed as sympy expressions)

Examples

Defining linear-combinations of volume- or surface scattering distributions works completely similar:

>>> from rt1_model import volume
>>> V = volume.LinComb([(0.5, volume.Isotropic()), (0.5, volume.Rayleigh())])

>>> from rt1_model import surface
>>> V = surface.LinComb([(0.5, surface.Isotropic()),
                         (0.5, surface.HenyeyGreenstein(t="t", ncoefs=10))])

You can also use expressions for the weights!

>>> from rt1_model import surface
>>> V = surface.LinComb([("x", surface.Isotropic()),
                         ("1 - x", surface.HenyeyGreenstein(t="t", ncoefs=10))])