MGEs

Classes for Multi Gaussian Expansions (MGEs).

API

Classes:

MGE(**kwargs)

Multi Gaussian Expansions

class mges.MGE(**kwargs)

Multi Gaussian Expansions

Methods:

convert_file_from_old_format(...)	convert old mge file to ECSV file
get_intrinsic_masses_from_file(directory_noml)	read mge intrinsic masses from mass_qgrid.dat
get_projected_masses_from_file(directory_noml)	read mge projected masses from mass_aper.dat
read_file_old_format(filename)	read the MGE data from a text file
validate_q_values()	Validates the mge's q values

convert_file_from_old_format(filename_old_format, filename_new_format)

convert old mge file to ECSV file

Parameters:

filename_old_formatstring

old filename

filename_new_formatstring

new filename

Returns:

None

saves file with name filename_new_format

get_intrinsic_masses_from_file(directory_noml)

read mge intrinsic masses from mass_qgrid.dat

Parameters:

directory_nomlstring

name of model directory exclusing the ml/ extension

Returns:

array

3D intrinsic_masses masses of the MGE in a polar grid with sizes (n_r, n_theta, n_phi) which is defined (in Fortran files) to be (6,6,10)

get_projected_masses_from_file(directory_noml)

read mge projected masses from mass_aper.dat

Parameters:

directory_nomlstring

name of model directory exclusing the ml/ extension

Returns:

array

array of aperture masses of the MGE

read_file_old_format(filename)

read the MGE data from a text file

old format = text file, 4 columns (I, sigma, q, PA_twist), with one header line

Parameters:

filenamestring

name of file

Returns:

ndarray

MGE data in structrued numpy array

validate_q_values()

Validates the mge’s q values

Any q ‘too close to 1’ will be set to q=NINES for numerical stability. If any changes are made, a warning message will be logged. Note that the ‘closeness’ to 1 might be machine dependent - for us ‘four nines’, 0.9999, worked…

Returns:

None. Any changes are applied to self.data.

Inheritance Diagram