Galfit related plots

utilities.plotUtilities.display_hst_models(file1, fileout='test.pdf', title=None, cmap='spectral', log=False, show=False)

Code author: Epinat Benoit - LAM <benoit.epinat@lam.fr> & Wilfried Mercier - IRAP <wilfried.mercier@irap.omp.eu>

This function enables to display a GALFIT output file containing the galaxy image, the associated model and the residuals.

Parameters

• file1 (str) – name of GALFIT output file

• cmap (str) – (Optional) name of the colormap. Must be understood by matplotlib.

• fileout (str) – (Optional) name of the output file

• log (bool) – (Optional) whether to have a log scale or not

• show (bool) – (Optional) whether to show the image or not

• title (str) – (Optional) title of the output image

Raises

TypeError –

• if title is neither None, nor of type str

• if fileout is not of type str

• if cmap is not of type str

• if log is not of type bool

• if show is not of type bool

utilities.plotUtilities.genMeThatPDF(fnamesList, pdfOut, readFromFile=False, groupNumbers=None, log=True, diverging=False, zeroPoint=0.0, cmap='bwr')

Code author: Wilfried Mercier - IRAP <wilfried.mercier@irap.omp.eu>

Generate a pdf file with all the GALFIT images (data, model and residual) side by side.

Note

When certain problems arise, a default blank plot is drawn instead. Below is a list of issues where a blank plot may be generated

• if a file is not found

• if the min and max of an image are equal

Parameters

• fnamesList (list[str]) – all the file names (paths included) with the GALFIT images. If readFromFile is True, provide the name of a file containing all the different names (one per line).

• pdfOut (str) – name of the output pdf file

• diverging (bool) – (Optional) whether to use a diverging norm or not. If False, a linear norm will be used (overriding any log norm).

• cmap (str) – (Optional) colormap to use for the plot

• groupNumbers (list[str]) – (Optional) list of groups the galaxies belong to

• log (bool) – (Optional) whether to show images as log or not

• readFromFile (bool) – (Optional) whether to read the file names from a file or not. If True, the names must be listed one per line.

• zeroPoint (float) – (Optional) value at which the diverging norm will split in two