random_sightlines

salsa.random_sightlines(ds_file, center, num_sightlines, max_impact_param, min_impact_param=0, length=200)

randomly sample impact parameter to get random sightlines from a given galaxy center

Parameters:

• ds_file (str or YT dataset) – path to dataset to loar or already loaded dataset

• center (array like) – coordinates of the center of the galaxy in units code_length

• num_sightlines (int) – number of sightlines to return

• max_impact_param (float) – maximum impact param to sample from. If no units are attached (either unyt or astropy) it is assumed to be in kpc

• min_impact_param (float, optional) – minimum impact param to sample from. If no units are attached (either unyt or astropy) it is assumed to be in kpc Default: 0.

• length (float, optional) – length of the sightline. f no units are attached (either unyt or astropy) it is assumed to be in kpc Default: 200

Returns:

• start_points (array) – 2d array of the startpoints for each sightline in code_length

• end_points (array) – 2d array of the endpoints for each sightline in code_length

• impact_param (array) – array of impact parameters for each ray created in code_length