def _parse_sky_direction(self, sky_direction_definition):
# Instance the SkyDirection class using the coordinates provided
coordinates = {}
if 'ra' in sky_direction_definition and 'dec' in sky_direction_definition:
par_parser = ParameterParser('ra', sky_direction_definition['ra'])
ra = par_parser.get_variable()
ra.bounds = (0, 360)
par_parser = ParameterParser('dec', sky_direction_definition['dec'])
dec = par_parser.get_variable()
dec.bounds = (-90, 90)
coordinates['ra'] = ra
coordinates['dec'] = dec
elif 'l' in sky_direction_definition and 'b' in sky_direction_definition:
par_parser = ParameterParser('l', sky_direction_definition['l'])
l = par_parser.get_variable()
l.bounds = (0, 360)
par_parser = ParameterParser('b', sky_direction_definition['b'])
b = par_parser.get_variable()
b.bounds = (-90, 90)
coordinates['l'] = l
coordinates['b'] = b
else: # pragma: no cover
raise ModelSyntaxError("Position specification for source %s has an invalid coordinate pair. "
" You need to specify either 'ra' and 'dec', or 'l' and 'b'."
% self._source_name)
# Check if there is a equinox specification
if 'equinox' in sky_direction_definition:
coordinates['equinox'] = sky_direction_definition['equinox']
try:
this_sky_direction = sky_direction.SkyDirection(**coordinates)
except sky_direction.WrongCoordinatePair: # pragma: no cover
raise ModelSyntaxError("Position specification for source %s has an invalid coordinate pair"
% self._source_name)
return this_sky_direction
def _parse_sky_direction(self, sky_direction_definition):
# Instance the SkyDirection class using the coordinates provided
coordinates = {}
if "ra" in sky_direction_definition and "dec" in sky_direction_definition:
par_parser = ParameterParser("ra", sky_direction_definition["ra"])
ra = par_parser.get_variable()
if ra.bounds == (None, None):
ra.bounds = (0, 360)
par_parser = ParameterParser("dec",
sky_direction_definition["dec"])
dec = par_parser.get_variable()
if dec.bounds == (None, None):
dec.bounds = (-90, 90)
coordinates["ra"] = ra
coordinates["dec"] = dec
elif "l" in sky_direction_definition and "b" in sky_direction_definition:
par_parser = ParameterParser("l", sky_direction_definition["l"])
l = par_parser.get_variable()
if l.bounds == (None, None):
l.bounds = (0, 360)
par_parser = ParameterParser("b", sky_direction_definition["b"])
b = par_parser.get_variable()
if b.bounds == (None, None):
b.bounds = (-90, 90)
coordinates["l"] = l
coordinates["b"] = b
else: # pragma: no cover
raise ModelSyntaxError(
"Position specification for source %s has an invalid coordinate pair. "
" You need to specify either 'ra' and 'dec', or 'l' and 'b'." %
self._source_name)
# Check if there is a equinox specification
if "equinox" in sky_direction_definition:
coordinates["equinox"] = sky_direction_definition["equinox"]
try:
this_sky_direction = sky_direction.SkyDirection(**coordinates)
except sky_direction.WrongCoordinatePair: # pragma: no cover
raise ModelSyntaxError(
"Position specification for source %s has an invalid coordinate pair"
% self._source_name)
return this_sky_direction