def get_ba(cubes):
'''
Return an array of b/a of the given cubes.
'''
ba = []
for f in cubes:
print 'Computing b/a for %s' % f
_K = fitsQ3DataCube(f)
_pa, _ba = _K.getEllipseParams()
ba.append(_ba)
return np.array(ba)
def readCALIFACube(self, fitsFile = False):
self._initVars()
if fitsFile:
self.fitsFile = fitsFile
self.K = fitsQ3DataCube(self.fitsFile)
self.maskEmLines = np.ones_like(self.K.l_obs, dtype = np.bool)
self.maskQFlag = self.maskEmLines
self.maskLambdaConstrains = self.maskEmLines
self._setVars()
def __init__(self, db, target_vd=None, grating='none', nproc=None):
IFSDecomposer.__init__(self)
if grating == 'V500':
disp_FWHM = self.dispFWHM_V500
elif grating == 'V1200':
disp_FWHM = self.dispFWHM_V1200
elif grating == 'none':
disp_FWHM = None
else:
raise Exception('Unknown grating type %s' % grating)
self.name = califa_id_from_cube(db)
self.K = fitsQ3DataCube(db, smooth=True)
self.flux_unit = self.K.keywords['FLUX_UNIT']
flux, error, flags, vel_FWHM = self._fixKinematics(target_vd, disp_FWHM, nproc)
if disp_FWHM is not None:
wl_FWHM = np.sqrt(vel_FWHM**2 + disp_FWHM**2)
else:
wl_FWHM = None
logger.debug('Computing IFS from voronoi zone spectra...')
flux = self.K.zoneToYX(flux, extensive=True, surface_density=False)
error = self.K.zoneToYX(error, extensive=True, surface_density=False)
flags = self.K.zoneToYX(flags, extensive=False).filled(True)
self.loadData(self.K.l_obs, flux, error, flags, wl_FWHM)