Python aff_to_hdr Examples

Example #1

File: test_trackvis.py Project: fperez/dipy

def test_aff_to_hdr():
    hdr = {}
    affine = np.diag([1,2,3,1])
    affine[:3,3] = [10,11,12]
    tv.aff_to_hdr(affine, hdr)
    yield assert_array_almost_equal(tv.aff_from_hdr(hdr), affine)
    # put flip into affine
    aff2 = affine.copy()
    aff2[:,2] *=-1
    tv.aff_to_hdr(aff2, hdr)
    yield assert_array_almost_equal(tv.aff_from_hdr(hdr), aff2)

Example #2

File: test_trackvis.py Project: snowbhr06/dipy

def test_aff_to_hdr():
    for version in (1, 2):
        hdr = {'version': version}
        affine = np.diag([1, 2, 3, 1])
        affine[:3, 3] = [10, 11, 12]
        tv.aff_to_hdr(affine, hdr)
        yield assert_array_almost_equal(tv.aff_from_hdr(hdr), affine)
        # put flip into affine
        aff2 = affine.copy()
        aff2[:, 2] *= -1
        tv.aff_to_hdr(aff2, hdr)
        yield assert_array_almost_equal(tv.aff_from_hdr(hdr), aff2)
        if version == 2:
            yield assert_array_almost_equal(hdr['vox_to_ras'], aff2)

Example #3

File: test_trackvis.py Project: frankyeh/dipy

def test_aff_to_hdr():
    for version in (1, 2):
        hdr = {'version': version}
        affine = np.diag([1,2,3,1])
        affine[:3,3] = [10,11,12]
        tv.aff_to_hdr(affine, hdr)
        yield assert_array_almost_equal(tv.aff_from_hdr(hdr), affine)
        # put flip into affine
        aff2 = affine.copy()
        aff2[:,2] *=-1
        tv.aff_to_hdr(aff2, hdr)
        yield assert_array_almost_equal(tv.aff_from_hdr(hdr), aff2)
        if version == 2:
            yield assert_array_almost_equal(hdr['vox_to_ras'], aff2)