class TestImPACT():
@classmethod
def setup_class(self):
self.impact_reco = ImPACTReconstructor(root_dir=".")
self.horizon_frame = AltAz()
self.h1 = HillasParametersContainer(x=1 * u.deg,
y=1 * u.deg,
r=1 * u.deg,
phi=Angle(0 * u.rad),
intensity=100,
length=0.4 * u.deg,
width=0.4 * u.deg,
psi=Angle(0 * u.rad),
skewness=0,
kurtosis=0)
#@pytest.mark.skip('need a dataset for this to work')
def test_brightest_mean_average(self):
"""
Test that averaging of the brightest pixel position give a sensible outcome
"""
image = np.array([1, 1, 1, 1])
pixel_x = np.array([0., 1., 0., -1.]) * u.deg
pixel_y = np.array([-1., 0., 1., 0.]) * u.deg
array_pointing = SkyCoord(alt=0 * u.deg,
az=0 * u.deg,
frame=self.horizon_frame)
self.impact_reco.set_event_properties({1: image}, {1: image},
{1: pixel_x}, {1: pixel_y},
{1: "DUMMY"}, {1: 0 * u.m},
{1: 0 * u.m},
array_direction=array_pointing,
hillas={1: self.h1})
self.impact_reco.get_hillas_mean()
assert_allclose(self.impact_reco.peak_x[0] * (180 / np.pi),
1,
rtol=0,
atol=0.001)
assert_allclose(self.impact_reco.peak_y[0] * (180 / np.pi),
1,
rtol=0,
atol=0.001)
def test_rotation(self):
"""Test pixel rotation function"""
x = np.array([1])
y = np.array([0])
xt, yt = ImPACTReconstructor.rotate_translate(x, y, 0, 0,
np.deg2rad(90))
assert_allclose(xt, 0, rtol=0, atol=0.001)
assert_allclose(yt, 1, rtol=0, atol=0.001)
xt, yt = ImPACTReconstructor.rotate_translate(x, y, 0, 0,
np.deg2rad(180))
assert_allclose(xt, 1, rtol=0, atol=0.001)
assert_allclose(yt, 0, rtol=0, atol=0.001)
def test_translation(self):
"""Test pixel translation function"""
x = np.array([0])
y = np.array([0])
xt, yt = ImPACTReconstructor.rotate_translate(x, y, 1, 1,
np.array([0]))
assert_allclose(xt, 1, rtol=0, atol=0.001)
assert_allclose(yt, -1, rtol=0, atol=0.001)
def test_xmax_calculation(self):
"""Test calculation of hmax and interpolation of Xmax tables"""
image = np.array([1, 1, 1])
pixel_x = np.array([1, 1, 1]) * u.deg
pixel_y = np.array([1, 1, 1]) * u.deg
array_pointing = SkyCoord(alt=0 * u.deg,
az=0 * u.deg,
frame=self.horizon_frame)
self.impact_reco.set_event_properties({1: image}, {1: image},
{1: pixel_x}, {1: pixel_y},
{1: "DUMMY"}, {1: 0 * u.m},
{1: 0 * u.m},
array_direction=array_pointing,
hillas={1: self.h1})
shower_max = self.impact_reco.get_shower_max(0, 0, 0, 100, 0)
assert_allclose(shower_max, 484.2442217190515, rtol=0.01)
@pytest.mark.skip('need a dataset for this to work')
def test_image_prediction(self):
pixel_x = np.array([0]) * u.deg
pixel_y = np.array([0]) * u.deg
image = np.array([1])
pixel_area = np.array([1]) * u.deg * u.deg
self.impact_reco.set_event_properties(
{1: image}, {1: pixel_x}, {1: pixel_y}, {1: pixel_area},
{1: "CHEC"}, {1: 0 * u.m}, {1: 0 * u.m},
array_direction=[0 * u.deg, 0 * u.deg])
"""First check image prediction by directly accessing the function"""
pred = self.impact_reco.image_prediction("CHEC",
zenith=0,
azimuth=0,
energy=1,
impact=50,
x_max=0,
pix_x=pixel_x,
pix_y=pixel_y)
assert np.sum(pred) != 0
"""Then check helper function gives the same answer"""
shower = ReconstructedShowerContainer()
shower.is_valid = True
shower.alt = 0 * u.deg
shower.az = 0 * u.deg
shower.core_x = 0 * u.m
shower.core_y = 100 * u.m
shower.h_max = 300 + 93 * np.log10(1)
energy = ReconstructedEnergyContainer()
energy.is_valid = True
energy.energy = 1 * u.TeV
pred2 = self.impact_reco.get_prediction(1,
shower_reco=shower,
energy_reco=energy)
print(pred, pred2)
assert pred.all() == pred2.all()
@pytest.mark.skip('need a dataset for this to work')
def test_likelihood(self):
pixel_x = np.array([0]) * u.deg
pixel_y = np.array([0]) * u.deg
image = np.array([1])
pixel_area = np.array([1]) * u.deg * u.deg
self.impact_reco.set_event_properties(
{1: image}, {1: pixel_x}, {1: pixel_y}, {1: pixel_area},
{1: "CHEC"}, {1: 0 * u.m}, {1: 0 * u.m},
array_direction=[0 * u.deg, 0 * u.deg])
like = self.impact_reco.get_likelihood(0, 0, 0, 100, 1, 0)
assert like is not np.nan and like > 0
class TestImPACT():
@classmethod
def setup_class(self):
self.impact_reco = ImPACTReconstructor(root_dir=".")
self.h1 = HillasParametersContainer(x=1 * u.deg, y=1 * u.deg,
r=1 * u.deg, phi=Angle(0 * u.rad),
intensity=100,
length=0.4 * u.deg,
width=0.4 * u.deg,
psi=Angle(0 * u.rad),
skewness=0,
kurtosis=0)
#@pytest.mark.skip('need a dataset for this to work')
def test_brightest_mean_average(self):
"""
Test that averaging of the brightest pixel position give a sensible outcome
"""
image = np.array([1, 1, 1, 1])
pixel_x = np.array([0., 1., 0., -1.]) * u.deg
pixel_y = np.array([-1., 0., 1., 0.]) * u.deg
self.impact_reco.set_event_properties({1: image}, {1: image},
{1: pixel_x},{1: pixel_y},
{1: "DUMMY"}, {1: 0 * u.m},
{1: 0 * u.m},
array_direction=[0 * u.deg,
0 * u.deg],
hillas={1:self.h1})
self.impact_reco.get_hillas_mean()
assert_allclose(self.impact_reco.peak_x[0]*(180/np.pi), 1, rtol=0, atol=0.001)
assert_allclose(self.impact_reco.peak_y[0]*(180/np.pi), 1, rtol=0, atol=0.001)
def test_rotation(self):
"""Test pixel rotation function"""
x = np.array([1])
y = np.array([0])
xt, yt = ImPACTReconstructor.rotate_translate(x, y, 0, 0,
np.deg2rad(90))
assert_allclose(xt, 0, rtol=0, atol=0.001)
assert_allclose(yt, 1, rtol=0, atol=0.001)
xt, yt = ImPACTReconstructor.rotate_translate(x, y, 0, 0,
np.deg2rad(180))
assert_allclose(xt, 1, rtol=0, atol=0.001)
assert_allclose(yt, 0, rtol=0, atol=0.001)
def test_translation(self):
"""Test pixel translation function"""
x = np.array([0])
y = np.array([0])
xt, yt = ImPACTReconstructor.rotate_translate(x, y, 1, 1, np.array([0]))
assert_allclose(xt, 1, rtol=0, atol=0.001)
assert_allclose(yt, -1, rtol=0, atol=0.001)
def test_xmax_calculation(self):
"""Test calculation of hmax and interpolation of Xmax tables"""
image = np.array([1, 1, 1])
pixel_x = np.array([1, 1, 1]) * u.deg
pixel_y = np.array([1, 1, 1]) * u.deg
self.impact_reco.set_event_properties({1: image}, {1: image},
{1: pixel_x},{1: pixel_y},
{1: "DUMMY"}, {1: 0 * u.m},
{1: 0 * u.m},
array_direction=[0 * u.deg,
0 * u.deg],
hillas={1:self.h1})
shower_max = self.impact_reco.get_shower_max(0, 0, 0, 100, 0)
assert_allclose(shower_max, 484.2442217190515 , rtol=0.01)
@pytest.mark.skip('need a dataset for this to work')
def test_image_prediction(self):
pixel_x = np.array([0]) * u.deg
pixel_y = np.array([0]) * u.deg
image = np.array([1])
pixel_area = np.array([1]) * u.deg * u.deg
self.impact_reco.set_event_properties({1: image}, {1: pixel_x},
{1: pixel_y}, {1: pixel_area},
{1: "CHEC"}, {1: 0 * u.m},
{1: 0 * u.m},
array_direction=[0 * u.deg,
0 * u.deg])
"""First check image prediction by directly accessing the function"""
pred = self.impact_reco.image_prediction("CHEC", zenith=0, azimuth=0,
energy=1, impact=50, x_max=0,
pix_x=pixel_x, pix_y=pixel_y)
assert np.sum(pred) != 0
"""Then check helper function gives the same answer"""
shower = ReconstructedShowerContainer()
shower.is_valid = True
shower.alt = 0 * u.deg
shower.az = 0 * u.deg
shower.core_x = 0 * u.m
shower.core_y = 100 * u.m
shower.h_max = 300 + 93 * np.log10(1)
energy = ReconstructedEnergyContainer()
energy.is_valid = True
energy.energy = 1 * u.TeV
pred2 = self.impact_reco.get_prediction(1, shower_reco=shower,
energy_reco=energy)
print(pred, pred2)
assert pred.all() == pred2.all()
@pytest.mark.skip('need a dataset for this to work')
def test_likelihood(self):
pixel_x = np.array([0]) * u.deg
pixel_y = np.array([0]) * u.deg
image = np.array([1])
pixel_area = np.array([1]) * u.deg * u.deg
self.impact_reco.set_event_properties({1: image}, {1: pixel_x},
{1: pixel_y}, {1: pixel_area},
{1: "CHEC"}, {1: 0 * u.m},
{1: 0 * u.m},
array_direction=[0 * u.deg,
0 * u.deg])
like = self.impact_reco.get_likelihood(0, 0, 0, 100, 1, 0)
assert like is not np.nan and like > 0
class TestImPACT():
@classmethod
def setup_class(self):
self.impact_reco = ImPACTReconstructor(root_dir=".")
@pytest.mark.skip('need a dataset for this to work')
def test_brightest_mean_average(self):
"""
Test that averaging of the brightest pixel position give a sensible outcome
"""
image = np.array([1, 1, 1, 1])
pixel_x = np.array([0., 1., 0., -1.]) * u.deg
pixel_y = np.array([-1., 0., 1., 0.]) * u.deg
pixel_area = np.array([0, 0, 0, 0]) * u.deg * u.deg
self.impact_reco.set_event_properties({1: image}, {1: pixel_x},
{1: pixel_y}, {1: pixel_area},
{1: "CHEC"}, {1: 0 * u.m},
{1: 0 * u.m}, {1: 0 * u.m})
self.impact_reco.get_brightest_mean()
assert_allclose(self.impact_reco.peak_x[0], 0, rtol=0, atol=0.001)
assert_allclose(self.impact_reco.peak_y[0], 0, rtol=0, atol=0.001)
@pytest.mark.skip('need a dataset for this to work')
def test_brightest_mean_sort(self):
"""
Test that pixels are sorted into the correct order
"""
image = np.array([1, 1, 1, 0])
pixel_x = np.array([1, 1, 1, 0]) * u.rad
pixel_y = np.array([1, 1, 1, 0.]) * u.rad
pixel_area = np.array([0, 0, 0, 0]) * u.deg * u.deg
self.impact_reco.set_event_properties({1: image}, {1: pixel_x},
{1: pixel_y}, {1: pixel_area},
{1: "CHEC"}, {1: 0 * u.m},
{1: 0 * u.m}, {1: 0 * u.m})
self.impact_reco.get_brightest_mean()
assert_allclose(self.impact_reco.peak_x[0], 1, rtol=0, atol=0.001)
assert_allclose(self.impact_reco.peak_y[0], 1, rtol=0, atol=0.001)
def test_rotation(self):
"""Test pixel rotation function"""
x = np.array([1])
y = np.array([0])
xt, yt = ImPACTReconstructor.rotate_translate(x, y, 0, 0,
np.deg2rad(90))
assert_allclose(xt, 0, rtol=0, atol=0.001)
assert_allclose(yt, 1, rtol=0, atol=0.001)
xt, yt = ImPACTReconstructor.rotate_translate(x, y, 0, 0,
np.deg2rad(180))
assert_allclose(xt, -1, rtol=0, atol=0.001)
assert_allclose(yt, 0, rtol=0, atol=0.001)
def test_translation(self):
"""Test pixel translation function"""
x = np.array([0])
y = np.array([0])
xt, yt = ImPACTReconstructor.rotate_translate(x, y, 1, 1, 0)
assert_allclose(xt, -1, rtol=0, atol=0.001)
assert_allclose(yt, -1, rtol=0, atol=0.001)
@pytest.mark.skip('need a dataset for this to work')
def test_xmax_calculation(self):
"""Test calculation of hmax and interpolation of Xmax tables"""
image = np.array([1, 1, 1])
pixel_x = np.array([1, 1, 1]) * u.deg
pixel_y = np.array([1, 1, 1]) * u.deg
pixel_area = np.array([0, 0, 0]) * u.deg * u.deg
self.impact_reco.set_event_properties(
{1: image}, {1: pixel_x}, {1: pixel_y}, {1: pixel_area},
{1: "CHEC"}, {1: 0 * u.m}, {1: 0 * u.m},
array_direction=[0 * u.deg, 0 * u.deg])
shower_max = self.impact_reco.get_shower_max(0, 0, 0, 100, 0)
assert_allclose(shower_max,
486.85820802 * u.g / (u.cm * u.cm),
rtol=0.01)
@pytest.mark.skip('need a dataset for this to work')
def test_image_prediction(self):
pixel_x = np.array([0]) * u.deg
pixel_y = np.array([0]) * u.deg
image = np.array([1])
pixel_area = np.array([1]) * u.deg * u.deg
self.impact_reco.set_event_properties(
{1: image}, {1: pixel_x}, {1: pixel_y}, {1: pixel_area},
{1: "CHEC"}, {1: 0 * u.m}, {1: 0 * u.m},
array_direction=[0 * u.deg, 0 * u.deg])
"""First check image prediction by directly accessing the function"""
pred = self.impact_reco.image_prediction("CHEC",
zenith=0,
azimuth=0,
energy=1,
impact=50,
x_max=0,
pix_x=pixel_x,
pix_y=pixel_y)
assert np.sum(pred) != 0
"""Then check helper function gives the same answer"""
shower = ReconstructedShowerContainer()
shower.is_valid = True
shower.alt = 0 * u.deg
shower.az = 0 * u.deg
shower.core_x = 0 * u.m
shower.core_y = 100 * u.m
shower.h_max = 300 + 93 * np.log10(1)
energy = ReconstructedEnergyContainer()
energy.is_valid = True
energy.energy = 1 * u.TeV
pred2 = self.impact_reco.get_prediction(1,
shower_reco=shower,
energy_reco=energy)
print(pred, pred2)
assert pred.all() == pred2.all()
@pytest.mark.skip('need a dataset for this to work')
def test_likelihood(self):
pixel_x = np.array([0]) * u.deg
pixel_y = np.array([0]) * u.deg
image = np.array([1])
pixel_area = np.array([1]) * u.deg * u.deg
self.impact_reco.set_event_properties(
{1: image}, {1: pixel_x}, {1: pixel_y}, {1: pixel_area},
{1: "CHEC"}, {1: 0 * u.m}, {1: 0 * u.m},
array_direction=[0 * u.deg, 0 * u.deg])
like = self.impact_reco.get_likelihood(0, 0, 0, 100, 1, 0)
assert like is not np.nan and like > 0
class ImPACTReconstruction(Tool):
"""
"""
description = "ImPACTReco"
name='ctapipe-ImPACT-reco'
infile = Unicode(help='input simtelarray file').tag(config=True)
outfile = Unicode(help='output fits table').tag(config=True)
telescopes = List(Int, None, allow_none=True,
help='Telescopes to include from the event file. '
'Default = All telescopes').tag(config=True)
max_events = Int(default_value=1000000000,
help="Max number of events to include in analysis").tag(config=True)
amp_cut = Dict().tag(config=True)
dist_cut = Dict().tag(config=True)
tail_cut = Dict().tag(config=True)
pix_cut = Dict().tag(config=True)
minimiser = Unicode(default_value="minuit",
help='minimiser used for ImPACTReconstruction').tag(config=True)
aliases = Dict(dict(infile='ImPACTReconstruction.infile',
outfile='ImPACTReconstruction.outfile',
telescopes='ImPACTReconstruction.telescopes',
amp_cut='ImPACTReconstruction.amp_cut',
dist_cut='ImPACTReconstruction.dist_cut',
tail_cut='ImPACTReconstruction.tail_cut',
pix_cut='ImPACTReconstruction.pix_cut',
minimiser='ImPACTReconstruction.minimiser',
max_events='ImPACTReconstruction.max_events'))
def setup(self):
self.geoms = dict()
if len(self.amp_cut) == 0:
self.amp_cut = {"LSTCam": 92.7,
"NectarCam": 90.6,
"FlashCam": 90.6,
"CHEC": 29.3}
if len(self.dist_cut) == 0:
self.dist_cut = {"LSTCam": 1.74 * u.deg,
"NectarCam": 3. * u.deg,
"FlashCam": 3. * u.deg,
"CHEC": 3.55 * u.deg}
if len(self.tail_cut) == 0:
self.tail_cut = {"LSTCam": (8, 16),
"NectarCam": (7, 14),
"FlashCam": (7, 14),
"CHEC": (3, 6)}
if len(self.pix_cut) == 0:
self.pix_cut = {"LSTCam": 5,
"NectarCam": 4,
"FlashCam": 4,
"CHEC": 4}
# Calibrators set to default for now
self.r1 = HessioR1Calibrator(None, None)
self.dl0 = CameraDL0Reducer(None, None)
self.calibrator = CameraDL1Calibrator(None, None,
extractor=FullIntegrator(None, None))
# If we don't set this just use everything
if len(self.telescopes) < 2:
self.telescopes = None
self.source = hessio_event_source(self.infile,
allowed_tels=self.telescopes,
max_events=self.max_events)
self.fit = HillasIntersection()
self.energy_reco = EnergyRegressor.load("./Aux/{cam_id}.pkl",
["CHEC", "LSTCam", "NectarCam"])
self.ImPACT=ImPACTReconstructor()
self.viewer = EventViewer(draw_hillas_planes=True)
self.output = Table(names=['EVENT_ID', 'RECO_ALT', 'RECO_AZ',
'RECO_EN', 'RECO_ALT_HILLAS',
'RECO_AZ_HILLAS','RECO_EN_HILLAS', 'GOF',
'SIM_ALT', 'SIM_AZ', 'SIM_EN',
'NTELS', 'DIST_CORE'],
dtype=[np.int64, np.float64, np.float64,
np.float64, np.float64, np.float64,
np.float64, np.float64, np.float64,
np.float64, np.float64, np.int16,
np.float64])
def start(self):
for event in self.source:
self.calibrate_event(event)
self.reconstruct_event(event)
def finish(self):
self.output.write(self.outfile)
return True
def calibrate_event(self, event):
"""
Run standard calibrators to get from r0 to dl1
Parameters
----------
event: ctapipe event container
Returns
-------
None
"""
self.r1.calibrate(event)
self.dl0.reduce(event)
self.calibrator.calibrate(event) # calibrate the events
def preselect(self, hillas, npix, tel_id):
"""
Perform pre-selection of telescopes (before reconstruction) based on Hillas
Parameters
Parameters
----------
hillas: ctapipe Hillas parameter object
tel_id: int
Telescope ID number
Returns
-------
bool: Indicate whether telescope passes cuts
"""
if hillas is None:
return False
# Calculate distance of image centroid from camera centre
dist = np.sqrt(hillas.cen_x * hillas.cen_x +
hillas.cen_y * hillas.cen_y)
# Cut based on Hillas amplitude and nominal distance
if hillas.size > self.amp_cut[self.geoms[tel_id].cam_id] and dist < \
self.dist_cut[self.geoms[tel_id].cam_id] and \
hillas.width>0*u.deg and \
npix>self.pix_cut[self.geoms[tel_id].cam_id]:
return True
return False
def reconstruct_event(self, event):
"""
Perform full event reconstruction, including Hillas and ImPACT analysis.
Parameters
----------
event: ctapipe event container
Returns
-------
None
"""
# store MC pointing direction for the array
array_pointing = HorizonFrame(alt = event.mcheader.run_array_direction[1]*u.rad,
az = event.mcheader.run_array_direction[0]*u.rad)
tilted_system = TiltedGroundFrame(pointing_direction=array_pointing)
image = {}
pixel_x = {}
pixel_y = {}
pixel_area = {}
tel_type = {}
tel_x = {}
tel_y = {}
hillas = {}
hillas_nom = {}
image_pred = {}
mask_dict = {}
Gate_dict = {}
Nectar_dict = {}
LST_dict ={}
dict_list=[]
for tel_id in event.dl0.tels_with_data:
# Get calibrated image (low gain channel only)
pmt_signal = event.dl1.tel[tel_id].image[0]
# Create nominal system for the telescope (this should later used
#telescope pointing)
nom_system = NominalFrame(array_direction=array_pointing,
pointing_direction=array_pointing)
# Create camera system of all pixels
pix_x, pix_y = event.inst.pixel_pos[tel_id]
fl = event.inst.optical_foclen[tel_id]
if tel_id not in self.geoms:
self.geoms[tel_id] = CameraGeometry.guess(pix_x, pix_y,
event.inst.optical_foclen[ tel_id],
apply_derotation=False)
# Transform the pixels positions into nominal coordinates
camera_coord = CameraFrame(x=pix_x, y=pix_y,
z=np.zeros(pix_x.shape) * u.m,
focal_length=fl,
rotation= -1* self.geoms[tel_id].cam_rotation)
nom_coord = camera_coord.transform_to(nom_system)
tx, ty, tz = event.inst.tel_pos[tel_id]
# ImPACT reconstruction is performed in the tilted system,
# so we need to transform tel positions
grd_tel = GroundFrame(x=tx, y=ty, z=tz)
tilt_tel = grd_tel.transform_to(tilted_system)
# Clean image using split level cleaning
mask = tailcuts_clean(self.geoms[tel_id], pmt_signal,
picture_thresh=self.tail_cut[self.geoms[
tel_id].cam_id][1],
boundary_thresh=self.tail_cut[self.geoms[
tel_id].cam_id][0])
# Perform Hillas parameterisation
moments = None
try:
moments_cam = hillas_parameters(event.inst.pixel_pos[tel_id][0],
event.inst.pixel_pos[tel_id][1],
pmt_signal*mask)
moments = hillas_parameters(nom_coord.x, nom_coord.y,pmt_signal*mask)
except HillasParameterizationError as e:
print(e)
continue
# Make cut based on Hillas parameters
if self.preselect(moments, np.sum(mask), tel_id):
# Dialte around edges of image
for i in range(3):
mask = dilate(self.geoms[tel_id], mask)
# Save everything in dicts for reconstruction later
pixel_area[tel_id] = self.geoms[tel_id].pix_area/(fl*fl)
pixel_area[tel_id] *= u.rad*u.rad
pixel_x[tel_id] = nom_coord.x[mask]
pixel_y[tel_id] = nom_coord.y[mask]
tel_x[tel_id] = tilt_tel.x
tel_y[tel_id] = tilt_tel.y
tel_type[tel_id] = self.geoms[tel_id].cam_id
image[tel_id] = pmt_signal[mask]
image_pred[tel_id] = np.zeros(pmt_signal.shape)
hillas[tel_id] = moments_cam
hillas_nom[tel_id] = moments
mask_dict[tel_id] = mask
cam_id = self.geoms[tel_id].cam_id
print (cam_id)
mom=[moments.size, tilt_tel, moments.width/u.rad,
moments.length/u.rad]
if (cam_id == 'LSTCam'):
try:
LST_dict[cam_id].append(mom)
except:
LST_dict.update({'LSTCam':[mom]})
elif (cam_id =='NectarCam'):
try:
Nectar_dict['NectarCam'].append(mom)
except:
Nectar_dict.update({'NectarCam':[mom]})
elif (cam_id =='CHEC'):
try:
Gate_dict[cam_id].append(mom)
except:
Gate_dict.update({'CHEC':[mom]})
else:
print (cam_id +': Type not known')
#################################################
# Cut on number of telescopes remaining
if len(image)>1:
fit_result = self.fit.predict(hillas_nom, tel_x,
tel_y, array_pointing)
core_pos_grd = GroundFrame(x=fit_result.core_x,y=fit_result.core_y,
z=0*u.m)
core_pos_tilt = core_pos_grd.transform_to(tilted_system)
coredist=np.sqrt(core_pos_grd.x**2+core_pos_grd.y**2)
dict_list=np.array([])
if len(LST_dict) != 0:
for i in range (0,len(LST_dict['LSTCam'])):
LST_dict['LSTCam'][i][1]= LST_dict['LSTCam'][i][1].separation_3d(core_pos_tilt).to(u.m)/u.m
dict_list=np.append(dict_list,LST_dict)
if len(Nectar_dict) != 0:
for i in range(0,len(Nectar_dict['NectarCam'])):
Nectar_dict['NectarCam'][i][1]= Nectar_dict['NectarCam'][i][1].separation_3d(core_pos_tilt).to(u.m) /u.m
dict_list=np.append(dict_list,Nectar_dict)
if len(Gate_dict) !=0:
for i in range(0, len(Gate_dict['CHEC'])):
Gate_dict['CHEC'][i][1]= Gate_dict['CHEC'][i][1].separation_3d(core_pos_tilt).to(u.m) /u.m
dict_list=np.append(dict_list,Gate_dict)
energy_result = self.energy_reco.predict_by_event(dict_list)
print('Fit results and Energy results')
print(energy_result)
print ('__________________________')
# Perform ImPACT reconstruction
self.ImPACT.set_event_properties(image, pixel_x, pixel_y,
pixel_area, tel_type, tel_x,
tel_y, array_pointing, hillas_nom)
energy_seed=ReconstructedEnergyContainer()
energy_seed.energy=np.mean(np.power(10,energy_result['mean'].value)) * u.TeV
energy_seed.energy_uncert=np.mean(energy_result['std'])
energy_seed.is_valid = True
energy_seed.tel_ids= event.dl0.tels_with_data
ImPACT_shower, ImPACT_energy = self.ImPACT.predict(fit_result, energy_seed)
print(ImPACT_energy)
# insert the row into the table
self.output.add_row((event.dl0.event_id, ImPACT_shower.alt,
ImPACT_shower.az, ImPACT_energy.energy,
fit_result.alt, fit_result.az,
np.mean(np.power(10,energy_result['mean'].value)),
ImPACT_shower.goodness_of_fit,
event.mc.alt, event.mc.az, event.mc.energy,
len(image),coredist))
class TestImPACT():
@classmethod
def setup_class(self):
self.impact_reco = ImPACTReconstructor(root_dir=".", fit_xmax=True)
@pytest.mark.skip('need a dataset for this to work')
def test_brightest_mean_average(self):
"""
Test that averaging of the brightest pixel position give a sensible outcome
"""
image = np.array([1,1,1,1])
pixel_x = np.array([0.,1.,0.,-1.])*u.deg
pixel_y = np.array([-1.,0.,1.,0.])*u.deg
pixel_area = np.array([0,0,0,0])*u.deg*u.deg
self.impact_reco.set_event_properties({1:image}, {1:pixel_x},
{1:pixel_y}, {1:pixel_area},
{1:"CHEC"}, {1:0*u.m},
{1:0*u.m}, {1:0*u.m})
self.impact_reco.get_brightest_mean(num_pix=pixel_x.shape[0])
assert_allclose(self.impact_reco.peak_x[0], 0, rtol=0, atol=0.001)
assert_allclose(self.impact_reco.peak_y[0], 0, rtol=0, atol=0.001)
@pytest.mark.skip('need a dataset for this to work')
def test_brightest_mean_sort(self):
"""
Test that pixels are sorted into the correct order
"""
image = np.array([1,1,1,0])
pixel_x = np.array([1,1,1,0])*u.rad
pixel_y = np.array([1,1,1,0.])*u.rad
pixel_area = np.array([0,0,0,0])*u.deg*u.deg
self.impact_reco.set_event_properties({1:image}, {1:pixel_x}, {1:pixel_y}, {1:pixel_area},
{1:"CHEC"}, {1:0*u.m}, {1:0*u.m}, {1:0*u.m})
self.impact_reco.get_brightest_mean(num_pix=3)
assert_allclose(self.impact_reco.peak_x[0], 1, rtol=0, atol=0.001)
assert_allclose(self.impact_reco.peak_y[0], 1, rtol=0, atol=0.001)
def test_rotation(self):
"""Test pixel rotation function"""
x = np.array([1])
y = np.array([0])
xt, yt = ImPACTReconstructor.rotate_translate(x, y, 0, 0, np.deg2rad(90))
assert_allclose(xt, 0, rtol=0, atol=0.001)
assert_allclose(yt, 1, rtol=0, atol=0.001)
xt, yt = ImPACTReconstructor.rotate_translate(x, y, 0, 0, np.deg2rad(180))
assert_allclose(xt, -1, rtol=0, atol=0.001)
assert_allclose(yt, 0, rtol=0, atol=0.001)
def test_translation(self):
"""Test pixel translation function"""
x = np.array([0])
y = np.array([0])
xt, yt = ImPACTReconstructor.rotate_translate(x, y, 1, 1, 0)
assert_allclose(xt, -1, rtol=0, atol=0.001)
assert_allclose(yt, -1, rtol=0, atol=0.001)
@pytest.mark.skip('need a dataset for this to work')
def test_xmax_calculation(self):
"""Test calculation of hmax and interpolation of Xmax tables"""
image = np.array([1,1,1])
pixel_x = np.array([1,1,1])*u.deg
pixel_y = np.array([1,1,1])*u.deg
pixel_area = np.array([0,0,0])*u.deg*u.deg
self.impact_reco.set_event_properties({1:image}, {1:pixel_x},
{1:pixel_y}, {1:pixel_area},
{1:"CHEC"}, {1:0*u.m},
{1:0*u.m},
array_direction=[0*u.deg,0*u.deg])
max = self.impact_reco.get_shower_max(0, 0, 0, 100, 0)
assert_allclose(max, 486.85820802*u.g/(u.cm*u.cm), rtol=0.01)
@pytest.mark.skip('need a dataset for this to work')
def test_image_prediction(self):
pixel_x = np.array([0])*u.deg
pixel_y = np.array([0])*u.deg
image = np.array([1])
pixel_area = np.array([1])*u.deg*u.deg
self.impact_reco.set_event_properties({1:image}, {1:pixel_x},
{1:pixel_y}, {1:pixel_area},
{1:"CHEC"}, {1:0*u.m}, {1:0*u.m},
array_direction=[0*u.deg,0*u.deg])
"""First check image prediction by directly accessing the function"""
pred = self.impact_reco.image_prediction("CHEC", zenith=0, azimuth=0,
energy=1, impact=50, x_max=0,
pix_x=pixel_x, pix_y=pixel_y)
assert np.sum(pred) != 0
"""Then check helper function gives the same answer"""
shower = ReconstructedShowerContainer()
shower.is_valid=True
shower.alt = 0*u.deg
shower.az = 0*u.deg
shower.core_x = 0 *u.m
shower.core_y = 100*u.m
shower.h_max = 300 + 93 * np.log10(1)
energy = ReconstructedEnergyContainer()
energy.is_valid = True
energy.energy = 1*u.TeV
pred2 = self.impact_reco.get_prediction(1, shower_reco=shower,
energy_reco=energy)
print(pred, pred2)
assert pred.all() == pred2.all()
@pytest.mark.skip('need a dataset for this to work')
def test_likelihood(self):
pixel_x = np.array([0])*u.deg
pixel_y = np.array([0])*u.deg
image = np.array([1])
pixel_area = np.array([1])*u.deg*u.deg
self.impact_reco.set_event_properties({1:image}, {1:pixel_x},
{1:pixel_y}, {1:pixel_area},
{1:"CHEC"}, {1:0*u.m}, {1:0*u.m},
array_direction=[0*u.deg,0*u.deg])
like = self.impact_reco.get_likelihood(0, 0, 0, 100, 1, 0)
assert like is not np.nan and like > 0