Esempio n. 1
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def test_galactic2ecliptic_individual():
    from aplpy.wcs_util import fk52gal, gal2fk5

    r = ComponentLink([L, B], R, lb2ra)
    d = ComponentLink([L, B], R, lb2dec)
    l = ComponentLink([R, D], L, radec2glon)
    b = ComponentLink([R, D], B, radec2glat)

    x = np.array([0])
    y = np.array([0])
    check_using(l, (x, y), fk52gal(x, y)[0])
    check_using(b, (x, y), fk52gal(x, y)[1])
    check_using(r, (x, y), gal2fk5(x, y)[0])
    check_using(d, (x, y), gal2fk5(x, y)[1])
Esempio n. 2
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def test_Galactic2Equatorial():
    from aplpy.wcs_util import fk52gal, gal2fk5
    result = Galactic2Equatorial(L, B, R, D)
    assert len(result) == 4
    check_link(result[0], [R, D], L)
    check_link(result[1], [R, D], B)
    check_link(result[2], [L, B], R)
    check_link(result[3], [L, B], D)
    x = np.array([0])
    y = np.array([0])
    check_using(result[0], (x, y), fk52gal(x, y)[0])
    check_using(result[1], (x, y), fk52gal(x, y)[1])
    check_using(result[2], (x, y), gal2fk5(x, y)[0])
    check_using(result[3], (x, y), gal2fk5(x, y)[1])
Esempio n. 3
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 def lb2dec(lat, lon):
     """Compute declination from galactic longitude and latitude"""
     return gal2fk5(lat, lon)[1]
Esempio n. 4
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 def lb2ra(lat, lon):
     """Compute right ascension from galactic longitude and latitude"""
     return gal2fk5(lat, lon)[0]