def test_masking(structure, rot_list, edc):
dp = create_sample(edc, structure, rot_list[0], rot_list[1])
library = get_template_library(structure, rot_list, edc)
indexer = IndexationGenerator(dp, library)
mask = hs.signals.Signal1D(([[[1], [1]], [[0], [1]]]))
match_results = indexer.correlate(mask=mask)
assert match_results.inav[0, 1].isig[4] == 0 #correlation of zero
def get_match_results(structure, rot_list, edc, rots): #get params
dp = create_sample(edc, structure, rots[0], rots[1])
library = get_template_library(structure, rot_list, edc)
indexer = IndexationGenerator(dp, library)
match_results = indexer.correlate()
return match_results
def get_template_match_results_fullframe_bad_size(structure,
edc,
rot_list,
mask=None):
dp = generate_difficult_diffraction_patterns(structure, edc)
library = get_template_library(structure, rot_list, edc)
indexer = IndexationGenerator(dp, library)
return indexer.correlate(mask=mask, method="full_frame_correlation")
def get_template_match_results(structure, pattern_list, edc, rot_list, mask=None):
dp_library = get_template_library(structure, pattern_list, edc)
for key in dp_library['A']:
pattern = (dp_library['A'][key]['Sim'].as_signal(2 * half_side_length, 0.025, 1).data)
dp = pxm.ElectronDiffraction([[pattern, pattern], [pattern, pattern]])
library = get_template_library(structure, rot_list, edc)
indexer = IndexationGenerator(dp, library)
return indexer.correlate(mask=mask)
def test_masked_OM(default_structure, rot_list, pattern_list, edc):
dp_library = get_template_library(default_structure, pattern_list, edc)
for key in dp_library['A']:
pattern = (dp_library['A'][key]['Sim'].as_signal(2 * half_side_length, 0.025, 1).data)
dp = pxm.ElectronDiffraction([[pattern, pattern], [pattern, pattern]])
library = get_template_library(default_structure, rot_list, edc)
indexer = IndexationGenerator(dp, library)
mask = hs.signals.Signal1D(([[[1], [1]], [[0], [1]]]))
M = indexer.correlate(mask=mask)
assert np.all(np.isnan(M.inav[0, 1].data))
def test_orientation_mapping_physical(structure, rot_list, pattern_list, edc):
dp_library = get_template_library(structure, pattern_list, edc)
for key in dp_library['A']:
pattern = (dp_library['A'][key]['Sim'].as_signal(2 * half_side_length, 0.025, 1).data)
dp = pxm.ElectronDiffraction([[pattern, pattern], [pattern, pattern]])
library = get_template_library(structure, rot_list, edc)
indexer = IndexationGenerator(dp, library)
M = indexer.correlate()
assert np.all(M.inav[0, 0] == M.inav[1, 0])
assert np.allclose(M.inav[0, 0].isig[:4, 0].data, [0, 2, 0, 0], atol=1e-3)
def get_template_match_results(structure,
pattern_list,
edc,
rot_list,
mask=None,
inplane_rotations=[0]):
dp_library = get_template_library(structure, pattern_list, edc)
for sim in dp_library['A']['simulations']:
pattern = (sim_as_signal(sim, 2 * half_side_length, 0.025, 1).data)
dp = pxm.ElectronDiffraction2D([[pattern, pattern], [pattern, pattern]])
library = get_template_library(structure, rot_list, edc)
indexer = IndexationGenerator(dp, library)
return indexer.correlate(mask=mask, inplane_rotations=inplane_rotations)
def update_correlation_list(_=None):
reciprocal_angstrom_per_pixel = slider_scale.val
beam_energy = slider_energy.val
specimen_thickness = slider_thick.val
structure_info = structures[current_structure]
rotation_list_resolution = np.deg2rad(1)
phase_descriptions = [(structure_info['name'], structure_info['structure'],
structure_info['system'])]
inplane_rotations = [[np.deg2rad(103)]]
diffraction_library, structure_library = create_diffraction_library(
specimen_thickness, beam_energy, reciprocal_angstrom_per_pixel,
rotation_list_resolution, phase_descriptions, inplane_rotations,
target_pattern_dimension_pixels)
# Set up the indexer and get the indexation results
data_dir = r'D:\Dokumenter/MTNANO/Prosjektoppgave/Data/'
experimental_pattern_filename = data_dir + 'SPED_data_GaAs_NW/gen/Julie_180510_SCN45_FIB_a_three_phase_single_area.hdf5'
dp = pxm.load(experimental_pattern_filename, lazy=True).inav[0:1, 0:1]
dp = pxm.ElectronDiffraction(dp)
pattern_indexer = IndexationGenerator(dp, diffraction_library)
template_matching_results = pattern_indexer.correlate(
n_largest=structure_library.orientations[0].shape[0],
keys=[structure_info['name']],
parallel=False) # This is slower in parallel
global current_rotation_list
print(template_matching_results.data[0, 0].shape)
current_rotation_list = template_matching_results.isig[1:4, :].data[0, 0]
correlations = template_matching_results.isig[4, :].data[0, 0]
global current_rotation_list_signals
current_rotation_list_signals = []
print(correlations.argmax(), current_rotation_list[correlations.argmax()])
update_rotation(current_rotation_list, correlations)
fig.canvas.draw_idle()
dps[2:]]) #now from a 2x2 array of patterns
for alpha in np.arange(0, 10, 1):
rotation = (alpha, 0, 0)
if rotation[0] < 4:
library = create_library_entry(library, rotation,
dp_sim_list[rotation[0]])
else:
local_cords = np.random.rand(5, 2)
pat = DiffractionSimulation(coordinates=local_cords,
intensities=np.ones_like(local_cords[:,
0]))
library = create_library_entry(library, rotation, pat)
indexer = IndexationGenerator(dp, library)
match_results = indexer.correlate()
def test_match_results():
# Note the random number generator may give a different assertion failure
# This should always work regardless of the RNG.
assert match_results.inav[0, 0].data[0][1] == 0
assert match_results.inav[1, 0].data[0][1] == 1
assert match_results.inav[0, 1].data[0][1] == 2
assert match_results.inav[1, 1].data[0][1] == 3
def test_visuals():
## This functions will need to abuse globals.
## & Can be removed if we trust the other tests
from pyxem.utils.sim_utils import peaks_from_best_template
def get_template_match_results(structure,edc, rot_list, mask=None):
dp = generate_diffraction_patterns(structure,edc)
library = get_template_library(structure, rot_list, edc)
indexer = IndexationGenerator(dp, library)
return indexer.correlate(mask=mask,method='zero_mean_normalized_correlation')
library = DiffractionLibrary()
library["Phase"] = {
'simulations': simulations,
'orientations': orientations,
'pixel_coords': pixel_coords,
'intensities': intensities,
}
dp = pxm.ElectronDiffraction2D([dps[0:2], dps[2:]
]) # now from a 2x2 array of patterns
return dp, library
dp, library = create_library()
indexer = IndexationGenerator(dp, library)
match_results = indexer.correlate(inplane_rotations=[0])
def test_match_results():
# Note the random number generator may give a different assertion failure
# This should always work regardless of the RNG.
assert match_results.inav[0, 0].data[0][1][0] == 0
assert match_results.inav[1, 0].data[0][1][0] == 1
assert match_results.inav[0, 1].data[0][1][0] == 2
assert match_results.inav[1, 1].data[0][1][0] == 3
def test_plot_best_matching_results_on_signal():
match_results.plot_best_matching_results_on_signal(dp, library=library)
dps.loc[image,'template_library'] = library_name
## let's take a look at the generated pattern
#pattern0 = sim_as_signal(template_library.get_library_entry(phase='Aug', angle=(0, 0, 0))["Sim"],
# pattern_size, 0.03, reciprocal_radius)
# ### 2.2 start indexing
#
indexer = IndexationGenerator(dp, template_library)
match_results = indexer.correlate(n_largest=3, inplane_rotations=np.arange(0, 360, 1))
'''
match_results.plot_best_matching_results_on_signal(dp, template_library,
permanent_markers=False,
cmap='viridis')
'''
cryst_map = match_results.get_crystallographic_map()
mtex_file = image.split('.')[0]+"_pattern_match_results_tile"+str(number_of_tiles)+"_"+today+".csv"
cryst_map.save_mtex_map(mtex_file)
dps.loc[image, 'mtex_file'] = mtex_file