utilities.py 文件源码

def __init__(self, survey, band):
        self.survey = survey.strip()
        self.band = band.strip()

        try:
            self.mstar_file = resource_filename(__name__,'data/mstar/mstar_%s_%s.fit' % (self.survey, self.band))
        except:
            raise IOError("Could not find mstar resource mstar_%s_%s.fit" % (self.survey, self.band))
        try:
            self._mstar_arr = fitsio.read(self.mstar_file,ext=1)
        except:
            raise IOError("Could not find mstar file mstar_%s_%s.fit" % (self.survey, self.band))

        # Tom - why not use CubicSpline here? That's why it exists...
        self._f = CubicSpline(self._mstar_arr['Z'],self._mstar_arr['MSTAR'])
        #self._f = interpolate.interp1d(self._mstar_arr['Z'],self._mstar_arr['MSTAR'],kind='cubic')