Python ICRS.realize_frame示例

示例#1

def test_realizing():
    from astropy.coordinates.builtin_frames import ICRS, FK5
    from astropy.time import Time

    rep = r.SphericalRepresentation(1 * u.deg, 2 * u.deg, 3 * u.kpc)

    i = ICRS()
    i2 = i.realize_frame(rep)

    assert not i.has_data
    assert i2.has_data

    f = FK5(equinox=Time('J2001'))
    f2 = f.realize_frame(rep)

    assert not f.has_data
    assert f2.has_data

    assert f2.equinox == f.equinox
    assert f2.equinox != FK5.get_frame_attr_names()['equinox']

    # Check that a nicer error message is returned:
    with pytest.raises(TypeError) as excinfo:
        f.realize_frame(f.representation_type)

    assert ('Class passed as data instead of a representation'
            in excinfo.value.args[0])

示例#2

文件： test_frames.py 项目： Cadair/astropy

def test_realizing():
    from astropy.coordinates.builtin_frames import ICRS, FK5
    from astropy.time import Time

    rep = r.SphericalRepresentation(1*u.deg, 2*u.deg, 3*u.kpc)

    i = ICRS()
    i2 = i.realize_frame(rep)

    assert not i.has_data
    assert i2.has_data

    f = FK5(equinox=Time('J2001'))
    f2 = f.realize_frame(rep)

    assert not f.has_data
    assert f2.has_data

    assert f2.equinox == f.equinox
    assert f2.equinox != FK5.get_frame_attr_names()['equinox']

    # Check that a nicer error message is returned:
    with pytest.raises(TypeError) as excinfo:
        f.realize_frame(f.representation_type)

    assert ('Class passed as data instead of a representation' in
            excinfo.value.args[0])