def test_bad_lon():
"""see if anything breaks when longitude outside of [0, 360)"""
print test_bad_lon.__doc__
tol = 1e-5
dec = np.array([45.]) # arb
for r in [-10., 370.]:
ra = np.array([r])
val = wssa_utils.wssa_getval(ra, dec)
assert isinstance(val, np.ndarray)
assert val.dtype.name == 'float32'
assert val.shape == (1,)
tru = wssa_utils.wssa_getval(np.array([(r+360.) % 360.]), dec)
assert np.abs(val-tru) < tol
def test_bad_lon():
"""see if anything breaks when longitude outside of [0, 360)"""
print test_bad_lon.__doc__
tol = 1e-5
dec = np.array([45.]) # arb
for r in [-10., 370.]:
ra = np.array([r])
val = wssa_utils.wssa_getval(ra, dec)
assert isinstance(val, np.ndarray)
assert val.dtype.name == 'float32'
assert val.shape == (1, )
tru = wssa_utils.wssa_getval(np.array([(r + 360.) % 360.]), dec)
assert np.abs(val - tru) < tol
def test_unit_conversion():
"""test that conversion to to MJy/sr from DN happening when appropriate"""
print test_unit_conversion.__doc__
nsam = 1
ra, dec = random_lonlat(nsam, deg=True)
val = wssa_utils.wssa_getval(ra, dec)
val_mjysr = wssa_utils.wssa_getval(ra, dec, mjysr=True)
assert isinstance(val_mjysr, np.ndarray)
assert val_mjysr.dtype.name == 'float32'
assert val.shape == (nsam,)
assert val[0] != 0
rat = val_mjysr[0]/val[0]
tol = 1.0e-5
tru = wssa_utils.tile_par_struc()['calfac']
assert np.abs(rat-tru) < tol
def test_unit_conversion():
"""test that conversion to to MJy/sr from DN happening when appropriate"""
print test_unit_conversion.__doc__
nsam = 1
ra, dec = random_lonlat(nsam, deg=True)
val = wssa_utils.wssa_getval(ra, dec)
val_mjysr = wssa_utils.wssa_getval(ra, dec, mjysr=True)
assert isinstance(val_mjysr, np.ndarray)
assert val_mjysr.dtype.name == 'float32'
assert val.shape == (nsam, )
assert val[0] != 0
rat = val_mjysr[0] / val[0]
tol = 1.0e-5
tru = wssa_utils.tile_par_struc()['calfac']
assert np.abs(rat - tru) < tol
def test_tilepath(tilepath='/n/fink1/ameisner/tile-combine-8k'):
"""try non-default tile path"""
print test_tilepath.__doc__, ': ' + tilepath
nsam = 1
ra, dec = random_lonlat(nsam, deg=True)
val = wssa_utils.wssa_getval(ra, dec, tilepath=tilepath)
assert isinstance(val, np.ndarray)
assert val.shape == (nsam, )
def test_tilepath(tilepath='/n/fink1/ameisner/tile-combine-8k'):
"""try non-default tile path"""
print test_tilepath.__doc__, ': '+tilepath
nsam = 1
ra, dec = random_lonlat(nsam, deg=True)
val = wssa_utils.wssa_getval(ra, dec, tilepath=tilepath)
assert isinstance(val, np.ndarray)
assert val.shape == (nsam,)
def test_vals_mjysr(outname):
"""test that conversion to MJy/sr doesn't create any problems"""
ra = np.array([228.06533, 336.88487, 132.85047, 296.63675, 174.24343,
304.68113])
dec = np.array([9.6944888, 25.149593, -29.273778, 11.994469, 43.651411,
-10.985369])
vals = wssa_utils.wssa_getval(ra, dec, mjysr=True)
arrs2fits(outname, vals)
def test_vals_rect(outname, fname='rect.fits', exten=0):
"""sample values for all ra, dec in rectangular grid"""
fname = os.path.join(os.environ['WISE_DATA'], fname)
hdus = pyfits.open(fname)
ra = hdus[0].data
dec = hdus[1].data
vals = wssa_utils.wssa_getval(ra, dec, exten=exten)
arrs2fits(outname, vals)
def test_many_tiles():
"""lon and lat both 1d arrays, spread over multiple tiles"""
print test_many_tiles.__doc__
nsam = 10
ra, dec = random_lonlat(nsam, deg=True)
vals = wssa_utils.wssa_getval(ra, dec)
assert isinstance(vals, np.ndarray)
assert vals.dtype.name == 'float32'
assert vals.shape == (nsam, )
def test_single_pair():
"""test a single (lon, lat) pair"""
print test_single_pair.__doc__
nsam = 1
ra, dec = random_lonlat(nsam, deg=True)
val = wssa_utils.wssa_getval(ra, dec)
assert isinstance(val, np.ndarray)
assert val.dtype.name == 'float32'
assert val.shape == (nsam, )
def test_bad_lat():
"""see if anything breaks when latitude outside of [-90, 90]"""
print test_bad_lat.__doc__
ra = np.array([45.]) #arb
# just see if this runs without crashing ...
for d in [-100., 100.]:
dec = np.array([d])
val = wssa_utils.wssa_getval(ra, dec)
assert (val == -1)
def test_single_pair():
"""test a single (lon, lat) pair"""
print test_single_pair.__doc__
nsam = 1
ra, dec = random_lonlat(nsam, deg=True)
val = wssa_utils.wssa_getval(ra, dec)
assert isinstance(val, np.ndarray)
assert val.dtype.name == 'float32'
assert val.shape == (nsam,)
def test_bad_lat():
"""see if anything breaks when latitude outside of [-90, 90]"""
print test_bad_lat.__doc__
ra = np.array([45.]) #arb
# just see if this runs without crashing ...
for d in [-100., 100.]:
dec = np.array([d])
val = wssa_utils.wssa_getval(ra, dec)
assert (val == -1)
def test_val_float(outname):
"""get tile value for one lon, lat pair"""
ra = np.array([308.49839])
dec = np.array([-30.757660])
ra = ra.astype('float32')
dec = dec.astype('float32')
val = wssa_utils.wssa_getval(ra, dec)
arrs2fits(outname, val)
def test_many_tiles():
"""lon and lat both 1d arrays, spread over multiple tiles"""
print test_many_tiles.__doc__
nsam = 10
ra, dec = random_lonlat(nsam, deg=True)
vals = wssa_utils.wssa_getval(ra, dec)
assert isinstance(vals, np.ndarray)
assert vals.dtype.name == 'float32'
assert vals.shape == (nsam,)
def test_poles():
"""see if anything breaks at poles"""
print test_poles.__doc__
ra = np.array([0.])
for d in [-90., 90.]:
dec = np.array([d])
val = wssa_utils.wssa_getval(ra, dec)
assert isinstance(val, np.ndarray)
assert val.dtype.name == 'float32'
assert val[0] != 0
def test_poles():
"""see if anything breaks at poles"""
print test_poles.__doc__
ra = np.array([0.])
for d in [-90., 90.]:
dec = np.array([d])
val = wssa_utils.wssa_getval(ra, dec)
assert isinstance(val, np.ndarray)
assert val.dtype.name == 'float32'
assert val[0] != 0
def test_vals_float(outname):
"""get tile values more than one lon, lat pair"""
ra = np.array([228.06533, 336.88487, 132.85047, 296.63675, 174.24343,
304.68113])
dec = np.array([9.6944888, 25.149593, -29.273778, 11.994469, 43.651411,
-10.985369])
ra = ra.astype('float32')
dec = dec.astype('float32')
vals = wssa_utils.wssa_getval(ra, dec)
arrs2fits(outname, vals)
def wgetval(l, b, **kw):
import os
import sys
try:
import wssa_utils
except:
raise ImportError('wgetval requires wssa_utils')
from lsd.builtins.misc import galequ
if os.environ.get('WISE_TILE', None) is None:
os.environ['WISE_TILE'] = '/n/fink1/ameisner/tile-combine'
sys.path.append('/n/home09/ameisner/wssa_utils/python')
return wssa_utils.wssa_getval(*galequ(l, b), **kw)
def test_ext_type():
"""test that extension samples are of correct type, e.g. mask is integer"""
print test_ext_type.__doc__
nsam = 1
ra, dec = random_lonlat(nsam, deg=True)
msk = wssa_utils.tile_par_struc()['ismsk']
for ext, ismsk in enumerate(msk):
if not ismsk: continue
val = wssa_utils.wssa_getval(ra, dec, exten=ext)
assert isinstance(val, np.ndarray)
assert val.dtype.name == 'int32'
def test_ext_type():
"""test that extension samples are of correct type, e.g. mask is integer"""
print test_ext_type.__doc__
nsam = 1
ra, dec = random_lonlat(nsam, deg=True)
msk = wssa_utils.tile_par_struc()['ismsk']
for ext, ismsk in enumerate(msk):
if not ismsk: continue
val = wssa_utils.wssa_getval(ra, dec, exten=ext)
assert isinstance(val, np.ndarray)
assert val.dtype.name == 'int32'
def test_full_sky():
"""lon, lat for every nside=16 HEALPix pixel center"""
print test_full_sky.__doc__
nside = 16
npix = 12*(nside**2)
pix = np.arange(npix)
theta, phi = pix2ang_ring(nside, pix)
ra = (180./np.pi)*phi
dec = 90. - (180./np.pi)*theta
vals = wssa_utils.wssa_getval(ra, dec)
assert isinstance(vals, np.ndarray)
assert vals.shape == (npix,)
def test_full_sky():
"""lon, lat for every nside=16 HEALPix pixel center"""
print test_full_sky.__doc__
nside = 16
npix = 12 * (nside**2)
pix = np.arange(npix)
theta, phi = pix2ang_ring(nside, pix)
ra = (180. / np.pi) * phi
dec = 90. - (180. / np.pi) * theta
vals = wssa_utils.wssa_getval(ra, dec)
assert isinstance(vals, np.ndarray)
assert vals.shape == (npix, )
def test_many_coords():
"""lon and lat both 1d arrays, all within single tile"""
print test_many_coords.__doc__
racen = wssa_utils.com_tiles['RA'][114]
deccen = wssa_utils.com_tiles['DEC'][114]
nsam = 100
ra = np.random.rand(nsam) - 0.5 + racen
dec = np.random.rand(nsam) - 0.5 + deccen
vals = wssa_utils.wssa_getval(ra, dec)
assert isinstance(vals, np.ndarray)
assert vals.dtype.name == 'float32'
assert vals.shape == (nsam,)
def test_many_coords():
"""lon and lat both 1d arrays, all within single tile"""
print test_many_coords.__doc__
racen = wssa_utils.com_tiles['RA'][114]
deccen = wssa_utils.com_tiles['DEC'][114]
nsam = 100
ra = np.random.rand(nsam) - 0.5 + racen
dec = np.random.rand(nsam) - 0.5 + deccen
vals = wssa_utils.wssa_getval(ra, dec)
assert isinstance(vals, np.ndarray)
assert vals.dtype.name == 'float32'
assert vals.shape == (nsam, )
def test_2d_coords():
"""lon and lat both 2d arrays, all within single tile"""
print test_2d_coords.__doc__
racen = wssa_utils.com_tiles['RA'][114]
deccen = wssa_utils.com_tiles['DEC'][114]
nsam = 100
ra = np.random.rand(nsam) - 0.5 + racen
dec = np.random.rand(nsam) - 0.5 + deccen
sh = (10, 10)
ra = ra.reshape(sh)
dec = dec.reshape(sh)
vals = wssa_utils.wssa_getval(ra, dec)
assert isinstance(vals, np.ndarray)
assert vals.shape == sh
def test_2d_coords():
"""lon and lat both 2d arrays, all within single tile"""
print test_2d_coords.__doc__
racen = wssa_utils.com_tiles['RA'][114]
deccen = wssa_utils.com_tiles['DEC'][114]
nsam = 100
ra = np.random.rand(nsam) - 0.5 + racen
dec = np.random.rand(nsam) - 0.5 + deccen
sh = (10, 10)
ra = ra.reshape(sh)
dec = dec.reshape(sh)
vals = wssa_utils.wssa_getval(ra, dec)
assert isinstance(vals, np.ndarray)
assert vals.shape == sh
def test_2d_many():
"""lon and lat both 2d arrays, spread over multiple tiles"""
print test_2d_many.__doc__
racen = wssa_utils.com_tiles['RA'][114]
deccen = wssa_utils.com_tiles['DEC'][114]
nsam = 100
dist = 10.
ra = dist*(np.random.rand(nsam) - 0.5) + racen
dec = dist*(np.random.rand(nsam) - 0.5) + deccen
sh = (20, 5) # try non-square
ra = ra.reshape(sh)
dec = dec.reshape(sh)
vals = wssa_utils.wssa_getval(ra, dec)
assert isinstance(vals, np.ndarray)
assert vals.shape == sh
def test_2d_many():
"""lon and lat both 2d arrays, spread over multiple tiles"""
print test_2d_many.__doc__
racen = wssa_utils.com_tiles['RA'][114]
deccen = wssa_utils.com_tiles['DEC'][114]
nsam = 100
dist = 10.
ra = dist * (np.random.rand(nsam) - 0.5) + racen
dec = dist * (np.random.rand(nsam) - 0.5) + deccen
sh = (20, 5) # try non-square
ra = ra.reshape(sh)
dec = dec.reshape(sh)
vals = wssa_utils.wssa_getval(ra, dec)
assert isinstance(vals, np.ndarray)
assert vals.shape == sh
