yt.analysis_modules.cosmological_observation.light_cone.light_cone.LightCone

class yt.analysis_modules.cosmological_observation.light_cone.light_cone.LightCone(parameter_filename, simulation_type, near_redshift, far_redshift, observer_redshift=0.0, use_minimum_datasets=True, deltaz_min=0.0, minimum_coherent_box_fraction=0.0, time_data=True, redshift_data=True, find_outputs=False, set_parameters=None, output_dir='LC', output_prefix='LightCone')[source]

Initialize a LightCone object.

Parameters:

near_redshift : float

The near (lowest) redshift for the light cone.

far_redshift : float

The far (highest) redshift for the light cone.

observer_redshift : float

The redshift of the observer. Default: 0.0.

use_minimum_datasets : bool

If True, the minimum number of datasets is used to connect the initial and final redshift. If false, the light cone solution will contain as many entries as possible within the redshift interval. Default: True.

deltaz_min : float

Specifies the minimum \Delta z between consecutive datasets in the returned list. Default: 0.0.

minimum_coherent_box_fraction : float

Used with use_minimum_datasets set to False, this parameter specifies the fraction of the total box size to be traversed before rerandomizing the projection axis and center. This was invented to allow light cones with thin slices to sample coherent large scale structure, but in practice does not work so well. Try setting this parameter to 1 and see what happens. Default: 0.0.

time_data : bool

Whether or not to include time outputs when gathering datasets for time series. Default: True.

redshift_data : bool

Whether or not to include redshift outputs when gathering datasets for time series. Default: True.

find_outputs : bool

Whether or not to search for datasets in the current directory. Default: False.

set_parameters : dict

Dictionary of parameters to attach to ds.parameters. Default: None.

output_dir : string

The directory in which images and data files will be written. Default: “LC”.

output_prefix : string

The prefix of all images and data files. Default: “LightCone”.

Methods