Python d_to_q Examples

Example #1

File: test_utils.py Project: giltis/scikit-xray

def test_d_q_conversion():
    assert_equal(2 * np.pi, core.d_to_q(1))
    assert_equal(2 * np.pi, core.q_to_d(1))
    test_data = np.linspace(.1, 5, 100)
    assert_array_almost_equal(test_data, core.d_to_q(core.q_to_d(test_data)),
                              decimal=12)
    assert_array_almost_equal(test_data, core.q_to_d(core.d_to_q(test_data)),
                              decimal=12)

Example #2

File: test_xrs.py Project: giltis/scikit-xray

def smoke_test_powder_standard():
    name = 'Si'
    cal = calibration_standards[name]
    assert(name == cal.name)

    for d, hkl, q in cal:
        assert_array_almost_equal(d_to_q(d), q)
        assert_array_almost_equal(q_to_d(q), d)
        assert_array_equal(np.linalg.norm(hkl), hkl.length)

    assert_equal(str(cal), "Calibration standard: Si")
    assert_equal(len(cal), 11)