RawFile¶

class mpdaf.drs.RawFile(filename)[source]¶

Bases: object

RawFile class manages input/output for raw FITS file.

Parameters

filenamestr: The raw FITS file name.

Attributes

filenamestr: The raw FITS file name. None if any.
channelsdict: List of extension (extname,Channel)
primary_headerastropy.io.fits.Header: The primary header
nxint: Lengths of data in X
nyint: Lengths of data in Y
nextint: Number of extensions

Methods Summary

`get_channel`(self, extname)	Return a Channel object.
`get_channels_extname_list`(self)	Return the list of existing channels names.
`get_keywords`(self, key)	Return the keyword value.
`info`(self)	Print information.
`plot`(self[, title, channels, area, scale, …])	Plot the raw images.
`plot_white_image`(self[, mask, channels])	Reconstructs the white image of the FOV using a mask file and plots this image.
`reconstruct_white_image`(self[, mask, channels])	Reconstructs the white image of the FOV using a mask file.

Methods Documentation

get_channel(self, extname)[source]¶

Return a Channel object.

Parameters

extnamestr: The extension name.

Returns

outmpdaf.drs.Channel

get_channels_extname_list(self)[source]¶: Return the list of existing channels names.

get_keywords(self, key)[source]¶: Return the keyword value.

info(self)[source]¶: Print information.

plot(self, title=None, channels='all', area=None, scale='linear', vmin=None, vmax=None, zscale=False, colorbar=None, figsize=None, **kwargs)[source]¶

Plot the raw images.

Parameters

titlestr: Figure title (None by default).
channelslist or ‘all’: List of channel names. All by default.
arealist: list of pixels [pmin,pmax,qmin,qmax] to zoom.
scalestr: ‘linear’ | ‘log’ | ‘sqrt’ | ‘arcsinh’ | ‘power’ The stretch function to use for the scaling (default is ‘linear’).
vminfloat: Minimum pixel value to use for the scaling. If None, vmin is set to min of data.
vmaxfloat: Maximum pixel value to use for the scaling. If None, vmax is set to max of data.
zscalebool: If true, vmin and vmax are computed using the IRAF zscale algorithm.
colorbarstr: If ‘h’/’v’, a horizontal/vertical colorbar is added.
figsize: tuple: width, height of the figure.
kwargsdict: Additional options passed to Image.plot.

plot_white_image(self, mask=None, channels='all')[source]¶

Reconstructs the white image of the FOV using a mask file and plots this image.

Parameters

maskstr: Mask used to extract the data for each slice. Must be a FITS file with one extension per channel, and extension names which match the ones from the raw file. Defaults to PAE_July2013.fits.gz which comes with Mpdaf.
channelslist or ‘all’: List of channel names. All by default.

reconstruct_white_image(self, mask=None, channels='all')[source]¶

Reconstructs the white image of the FOV using a mask file.

Parameters

maskstr: Mask used to extract the data for each slice. Must be a FITS file with one extension per channel, and extension names which match the ones from the raw file. Defaults to PAE_July2013.fits.gz which comes with Mpdaf.
channelslist or ‘all’: List of channel names. All by default.

Returns

Image