"""
Functions that extract info from a blob for the mc_info / y datafield
in the h5 files.
These are made for the specific given runs. They might not be
applicable to other data, and could cause errors or produce unexpected
results when used on data other then the specified. Check for example the
primary position in the mc_tracks.
"""
import warnings
import numpy as np
from km3pipe.io.hdf5 import HDF5Header
from h5py import File
__author__ = "Daniel Guderian"
def get_std_reco(blob):
"""
Function to extract std reco info. This implementation requires h5 files
to be processed with the option "--best_tracks" which adds the selection
of best tracks for each reco type to the output using the km3io tools.
Returns
-------
std_reco_info : dict
Dict with the std reco info of the best tracks.
"""
#this dict will be filled up
std_reco_info = {}
#all known reco types to iterate over
reco_type_dict = {
"BestJmuon" : "jmuon_",
"BestJshower" : "jshower_",
"BestDusjshower" : "dusjshower_",
"BestAashower" : "aashower_",
}
for name_in_blob,identifier in reco_type_dict.items():
if name_in_blob in blob:
#get the previously identified best track
bt = blob[name_in_blob]
#get all its values
values = bt.item()
#get the names of the values and add specific tag
reco_names = bt.dtype.names
specific_reco_names = np.core.defchararray.add(identifier,reco_names)
#create a dict out of them
keys_list = list(specific_reco_names)
values_list = list(values)
zip_iterator = zip(keys_list, values_list)
reco_dict = dict(zip_iterator)
#add this dict to the complete std reco collection
std_reco_info.update(reco_dict)
return std_reco_info
def get_real_data_info_extr(input_file):
"""
Wrapper function that includes the actual mc_info_extr
for real data. There are no n_gen like in the neutrino case.
Parameters
----------
input_file : km3net data file
Can be online or offline format.
Returns
-------
mc_info_extr : function
The actual mc_info_extr function that holds the extractions.
"""
# check if std reco is present
f = File(input_file, "r")
has_std_reco = "reco" in f.keys()
def mc_info_extr(blob):
"""
Processes a blob and creates the y with mc_info and, if existing, std reco.
For this real data case it is only general event info, like the id.
Parameters
----------
blob : dict
The blob from the pipeline.
Returns
-------
track : dict
Containing all the specified info the y should have.
"""
event_info = blob["EventInfo"][0]
# add n_hits info for the cut
n_hits = len(blob["Hits"])
track = {
"event_id": event_info.event_id,
"run_id": event_info.run_id,
"trigger_mask": event_info.trigger_mask,
"n_hits": n_hits,
}
# get all the std reco info
if has_std_reco:
std_reco_info = get_std_reco(blob)
track.update(std_reco_info)
return track
return mc_info_extr
def get_random_noise_mc_info_extr(input_file):
"""
Wrapper function that includes the actual mc_info_extr
for random noise simulations. There are no n_gen like in the neutrino case.
Parameters
----------
input_file : km3net data file
Can be online or offline format.
Returns
-------
mc_info_extr : function
The actual mc_info_extr function that holds the extractions.
"""
# check if std reco is present
f = File(input_file, "r")
has_std_reco = "reco" in f.keys()
def mc_info_extr(blob):
"""
Processes a blob and creates the y with mc_info and, if existing, std reco.
For this random noise case it is only general event info, like the id.
Parameters
----------
blob : dict
The blob from the pipeline.
Returns
-------
track : dict
Containing all the specified info the y should have.
"""
event_info = blob["EventInfo"]
track = {
"event_id": event_info.event_id[0],
"run_id": event_info.run_id[0],
"particle_type": 0,
}
# get all the std reco info
if has_std_reco:
std_reco_info = get_std_reco(blob)
track.update(std_reco_info)
return track
return mc_info_extr
def get_neutrino_mc_info_extr(input_file):
"""
Wrapper function that includes the actual mc_info_extr
for neutrino simulations. The n_gen parameter, needed for neutrino weighting
is extracted from the header of the file.
Parameters
----------
input_file : km3net data file
Can be online or offline format.
Returns
-------
mc_info_extr : function
The actual mc_info_extr function that holds the extractions.
"""
# check if std reco is present
f = File(input_file, "r")
has_std_reco = "reco" in f.keys()
# get the n_gen
header = HDF5Header.from_hdf5(input_file)
n_gen = header.genvol.numberOfEvents
def mc_info_extr(blob):
"""
Processes a blob and creates the y with mc_info and, if existing, std reco.
For this neutrino case it is the full mc info for the primary neutrino; there are the several "McTracks":
check the simulation which index "p" the neutrino has.
Parameters
----------
blob : dict
The blob from the pipeline.
Returns
-------
track : dict
Containing all the specified info the y should have.
"""
# get general info about the event
event_id = blob["EventInfo"].event_id[0]
run_id = blob["EventInfo"].run_id[0]
# weights for neutrino analysis
weight_w1 = blob["EventInfo"].weight_w1[0]
weight_w2 = blob["EventInfo"].weight_w2[0]
weight_w3 = blob["EventInfo"].weight_w3[0]
# first, look for the particular neutrino index of the production
p = 0 # for ORCA4 (and probably subsequent productions)
mc_track = blob["McTracks"][p]
# some track mc truth info
particle_type = mc_track.pdgid #sometimes type, sometimes pdgid
energy = mc_track.energy
is_cc = mc_track.cc
bjorkeny = mc_track.by
dir_x, dir_y, dir_z = mc_track.dir_x, mc_track.dir_y, mc_track.dir_z
time_interaction = (
mc_track.time
) # actually always 0 for primary neutrino, measured in MC time
vertex_pos_x, vertex_pos_y, vertex_pos_z = (
mc_track.pos_x,
mc_track.pos_y,
mc_track.pos_z,
)
# add also the nhits info
n_hits = len(blob["Hits"])
track = {
"event_id": event_id,
"particle_type": particle_type,
"energy": energy,
"is_cc": is_cc,
"bjorkeny": bjorkeny,
"dir_x": dir_x,
"dir_y": dir_y,
"dir_z": dir_z,
"time_interaction": time_interaction,
"run_id": run_id,
"vertex_pos_x": vertex_pos_x,
"vertex_pos_y": vertex_pos_y,
"vertex_pos_z": vertex_pos_z,
"n_hits": n_hits,
"weight_w1": weight_w1,
"weight_w2": weight_w2,
"weight_w3": weight_w3,
"n_gen": n_gen,
}
# get all the std reco info
if has_std_reco:
std_reco_info = get_std_reco(blob)
track.update(std_reco_info)
return track
return mc_info_extr
#function used by Stefan to identify which muons leave how many mc hits in the (active) detector.
def get_mchits_per_muon(blob, inactive_du=None):
"""
For each muon in McTracks, get the number of McHits.
Parameters
----------
blob
The blob.
inactive_du : int, optional
McHits in this DU will not be counted.
Returns
-------
np.array
n_mchits, len = number of muons
"""
ids = blob["McTracks"]["id"]
# Origin of each mchit (as int) in the active line
origin = blob["McHits"]["origin"]
if inactive_du:
# only hits in active line
origin = origin[blob["McHits"]["du"] != inactive_du]
# get how many mchits were produced per muon in the bundle
origin_dict = dict(zip(*np.unique(origin, return_counts=True)))
return np.array([origin_dict.get(i, 0) for i in ids])
def get_muon_mc_info_extr(input_file,prod_identifier=2,inactive_du=None):
"""
Wrapper function that includes the actual mc_info_extr
for atm. muon simulations. There are no n_gen like in the neutrino case.
Parameters
----------
input_file : km3net data file
Can be online or offline format.
prod_identifier : int
Solotion for now: just give a 1 for km3sim and a 2 for JSerine production.
They have different simulated run times, shich are needed for the correct scaling.
Returns
-------
mc_info_extr : function
The actual mc_info_extr function that holds the extractions.
"""
# check if std reco is present
f = File(input_file, "r")
has_std_reco = "reco" in f.keys()
# no n_gen here, but needed for concatenation
n_gen = 1
def mc_info_extr(blob):
"""
Processes a blob and creates the y with mc_info and, if existing, std reco.
For this atm. muon case it is the full mc info for the primary; there are the several "McTracks":
check the simulation to understand what "p" you want. Muons come in bundles that have the same direction.
For energy: sum of all muons in a bundle,
for vertex: weighted (energy) mean of the individual vertices .
Parameters
----------
blob : dict
The blob from the pipeline.
Returns
-------
track : dict
Containing all the specified info the y should have.
"""
event_id = blob["EventInfo"].event_id[0]
run_id = blob["EventInfo"].run_id[0]
p = 0 # for ORCA4 (and probably subsequent productions)
mc_track = blob["McTracks"][p]
particle_type = mc_track.type # assumed that this is the same for all muons in a bundle
is_cc = 0 #set to 0
bjorkeny = 0 #set to zero
time_interaction = mc_track.time # same for all muons in a bundle
# sum up the energy from all muons that have at least x mc hits
n_hits_per_muon = get_mchits_per_muon(blob, inactive_du=inactive_du) #DU1 in ORCA4 is in the detx but not powered
#dont consider muons with less than 10 mc hits
suficient_hits_mask = n_hits_per_muon >= 15
energy = np.sum(blob["McTracks"][suficient_hits_mask].energy)
# all muons in a bundle are parallel, so just take dir of first muon
dir_x, dir_y, dir_z = mc_track.dir_x, mc_track.dir_y, mc_track.dir_z
# vertex is the weighted (energy) mean of the individual vertices
vertex_pos_x = np.average(
blob["McTracks"][p:].pos_x, weights=blob["McTracks"][p:].energy
)
vertex_pos_y = np.average(
blob["McTracks"][p:].pos_y, weights=blob["McTracks"][p:].energy
)
vertex_pos_z = np.average(
blob["McTracks"][p:].pos_z, weights=blob["McTracks"][p:].energy
)
# add also the nhits info
n_hits = len(blob["Hits"])
# this is only relevant for neutrinos, though dummy info is needed for the concatenation
weight_w1 = 10
weight_w2 = 10
weight_w3 = 10
track = {
"event_id": event_id,
"particle_type": particle_type,
"energy": energy,
"is_cc": is_cc,
"bjorkeny": bjorkeny,
"dir_x": dir_x,
"dir_y": dir_y,
"dir_z": dir_z,
"time_interaction": time_interaction,
"run_id": run_id,
"vertex_pos_x": vertex_pos_x,
"vertex_pos_y": vertex_pos_y,
"vertex_pos_z": vertex_pos_z,
"n_hits": n_hits,
"weight_w1": weight_w1,
"weight_w2": weight_w2,
"weight_w3": weight_w3,
"n_gen": n_gen,
"prod_identifier": prod_identifier,
}
# get all the std reco info
if has_std_reco:
std_reco_info = get_std_reco(blob)
track.update(std_reco_info)
return track
return mc_info_extr