def uv_selector(uv, ants=-1, pol_str=-1):
"""Call uv.select with appropriate options based on string argument for
antennas (can be 'all', 'auto', 'cross', '0,1,2', or '0_1,0_2') and
string for polarization ('xx','yy','xy','yx')."""
if ants != -1:
if type(ants) == str:
ants = parse_ants(ants, uv["nants"])
for cnt, (bl, include, pol) in enumerate(ants):
if cnt > 0:
if include:
uv.select("or", -1, -1)
else:
uv.select("and", -1, -1)
if pol == -1:
pol = pol_str # default to explicit pol parameter
if bl == "auto":
uv.select("auto", 0, 0, include=include)
else:
i, j = miriad.bl2ij(bl)
uv.select("antennae", i, j, include=include)
if pol != -1:
for p in pol.split(","):
polopt = miriad.str2pol[p]
uv.select("polarization", polopt, 0)
elif pol_str != -1:
for p in pol_str.split(","):
polopt = miriad.str2pol[p]
uv.select("polarization", polopt, 0)
def uv_selector(uv, ants, pol_str):
"""Call uv.select with appropriate options based on string argument for
antennas (can be 'all', 'auto', 'cross', '0,1,2', or '0_1,0_2') and
string for polarization ('xx','yy','xy','yx' or combinations 'xx,xy' etc.)."""
if type(ants) == str: ants = parse_ants(ants, uv['nants'])
print ants
for bl,include in ants:
if len(include)>1: include,pol = include
if bl == 'auto': uv.select('auto', 0, 0, include=include)
else:
i,j = miriad.bl2ij(bl)
uv.select('antennae', i, j, include=include)
for pol in pol_str.split(','):
try: polopt = miriad.str2pol[pol_str]
except(KeyError): raise ValueError('--pol argument invalid or absent')
uv.select('polarization', polopt, 0)
def uv_selector(uv, ants, pol_str):
"""Call uv.select with appropriate options based on string argument for
antennas (can be 'all', 'auto', 'cross', '0,1,2', or '0_1,0_2') and
string for polarization ('xx','yy','xy','yx' or combinations 'xx,xy' etc.)."""
if type(ants) == str: ants = parse_ants(ants, uv['nants'])
print ants
for bl, include in ants:
if len(include) > 1: include, pol = include
if bl == 'auto': uv.select('auto', 0, 0, include=include)
else:
i, j = miriad.bl2ij(bl)
uv.select('antennae', i, j, include=include)
for pol in pol_str.split(','):
try:
polopt = miriad.str2pol[pol_str]
except (KeyError):
raise ValueError('--pol argument invalid or absent')
uv.select('polarization', polopt, 0)
def uv_selector(uv, ants=-1, pol_str=-1):
"""Call uv.select with appropriate options based on string argument for
antennas (can be 'all', 'auto', 'cross', '0,1,2', or '0_1,0_2') and
string for polarization ('xx','yy','xy','yx')."""
if ants != -1:
if type(ants) == str: ants = parse_ants(ants, uv['nants'])
for cnt, (bl, include, pol) in enumerate(ants):
if cnt > 0:
if include: uv.select('or', -1, -1)
else: uv.select('and', -1, -1)
if pol == -1: pol = pol_str # default to explicit pol parameter
if bl == 'auto': uv.select('auto', 0, 0, include=include)
else:
i, j = miriad.bl2ij(bl)
uv.select('antennae', i, j, include=include)
if pol != -1:
for p in pol.split(','):
polopt = miriad.str2pol[p]
uv.select('polarization', polopt, 0)
elif pol_str != -1:
for p in pol.split(','):
polopt = miriad.str2pol[p]
uv.select('polarization', polopt, 0)
def bl2ij(self, bl):
"""Convert Miriad's (i+1) << 8 | (j+1) baseline indexing scheme to
i,j (0 indexed)"""
return bl2ij(bl)
def bl2ij(self, bl):
"""Convert Miriad's (i+1) << 8 | (j+1) baseline indexing scheme to
i,j (0 indexed)"""
return bl2ij(bl)