def get_equivalencies(): """ Return a list of example equivalencies for testing serialization. """ return [ eq.plate_scale(.3 * u.deg / u.mm), eq.pixel_scale(.5 * u.deg / u.pix), eq.spectral_density(350 * u.nm, factor=2), eq.spectral_density(350 * u.nm), eq.spectral(), eq.brightness_temperature(500 * u.GHz), eq.brightness_temperature(500 * u.GHz, beam_area=23 * u.sr), eq.with_H0(), eq.temperature_energy(), eq.temperature(), eq.thermodynamic_temperature(300 * u.Hz), eq.thermodynamic_temperature(140 * u.GHz, Planck15.Tcmb0), eq.beam_angular_area(3 * u.sr), eq.mass_energy(), eq.molar_mass_amu(), eq.doppler_relativistic(2 * u.m), eq.doppler_optical(2 * u.nm), eq.doppler_radio(2 * u.Hz), eq.parallax(), eq.logarithmic(), eq.dimensionless_angles(), eq.spectral() + eq.temperature(), (eq.spectral_density(35 * u.nm) + eq.brightness_temperature(5 * u.Hz, beam_area=2 * u.sr)), (eq.spectral() + eq.spectral_density(35 * u.nm) + eq.brightness_temperature(5 * u.Hz, beam_area=2 * u.sr)) ]
def to_flux(self, unit, equivalencies=None, suppress_conversion=False): """ Converts the flux data to the specified unit. Parameters ---------- unit : str or `~astropy.units.Unit` The unit to conver the flux array to. equivalencies : list of equivalencies Custom equivalencies to apply to conversions. Set to spectral_density by default. suppress_conversion : bool Set to true if updating the unit without converting data values. Returns ------- `~astropy.units.Quantity` The converted flux array. """ if not suppress_conversion: if equivalencies is None: equivalencies = eq.spectral_density(self.spectral_axis) new_data = self.flux.to( unit, equivalencies=equivalencies) self._data = new_data.value self._unit = new_data.unit else: self._unit = u.Unit(unit) return self.flux
def to_flux(self, unit, equivalencies=None, suppress_conversion=False): """ Converts the flux data to the specified unit. Parameters ---------- unit : str or `~astropy.units.Unit` The unit to conver the flux array to. equivalencies : list of equivalencies Custom equivalencies to apply to conversions. Set to spectral_density by default. suppress_conversion : bool Set to true if updating the unit without converting data values. Returns ------- `~astropy.units.Quantity` The converted flux array. """ if not suppress_conversion: if equivalencies is None: equivalencies = eq.spectral_density(self.spectral_axis) new_data = self.flux.to( unit, equivalencies=equivalencies) self._data = new_data.value self._unit = new_data.unit else: self._unit = u.Unit(unit) return self.flux
def to_flux(self, unit): """ Converts the flux data to the specified unit. Parameters ---------- unit : str or ~`astropy.units.Unit` The unit to conver the flux array to. Returns ------- ~`astropy.units.Quantity` The converted flux array. """ new_data = self.flux.to( unit, equivalencies=eq.spectral_density(self.spectral_axis)) self._data = new_data.value self._unit = new_data.unit return self.flux
def new_flux_unit(self, unit, equivalencies=None, suppress_conversion=False): """ Converts the flux data to the specified unit. This is an in-place change to the object. Parameters ---------- unit : str or `~astropy.units.Unit` The unit to convert the flux array to. equivalencies : list of equivalencies Custom equivalencies to apply to conversions. Set to spectral_density by default. suppress_conversion : bool Set to true if updating the unit without converting data values. Returns ------- `~specutils.Spectrum1D` A new spectrum with the converted flux array """ new_spec = deepcopy(self) if not suppress_conversion: if equivalencies is None: equivalencies = eq.spectral_density(self.spectral_axis) new_data = self.flux.to(unit, equivalencies=equivalencies) new_spec._data = new_data.value new_spec._unit = new_data.unit else: new_spec._unit = u.Unit(unit) return new_spec
def to_flux(self, unit): """ Converts the flux data to the specified unit. Parameters ---------- unit : str or ~`astropy.units.Unit` The unit to conver the flux array to. Returns ------- ~`astropy.units.Quantity` The converted flux array. """ new_data = self.flux.to(unit, equivalencies=eq.spectral_density( self.spectral_axis)) self._data = new_data.value self._unit = new_data.unit return self.flux
def new_flux_unit(self, unit, equivalencies=None, suppress_conversion=False): """ Converts the flux data to the specified unit. This is an in-place change to the object. Parameters ---------- unit : str or `~astropy.units.Unit` The unit to conver the flux array to. equivalencies : list of equivalencies Custom equivalencies to apply to conversions. Set to spectral_density by default. suppress_conversion : bool Set to true if updating the unit without converting data values. Returns ------- `~specutils.Spectrum1D` A new spectrum with the converted flux array """ new_spec = deepcopy(self) if not suppress_conversion: if equivalencies is None: equivalencies = eq.spectral_density(self.spectral_axis) new_data = self.flux.to( unit, equivalencies=equivalencies) new_spec._data = new_data.value new_spec._unit = new_data.unit else: new_spec._unit = u.Unit(unit) return new_spec