skim_utils.py

# !/usr/bin/env python
# -*- coding: utf-8 -*-
 
 
 
 
 
from ROOT import Belle2
import basf2 as b2
 
 
class skimOutRNDTrgModule(b2.Module):
    """
    returns True if the event is NOT a random triggered event
    """
 
    def __init__(self):
        """constructor"""
 
        super().__init__()
 
    def event(self):
        """
        check RawFTSW to get the event type
        """
        
        rawFTSW = Belle2.PyStoreArray('RawFTSWs')
 
        if not rawFTSW.isValid():
            b2.B2WARNING('No RawFTSW available - event ignored')
            self.return_value(0)
 
            return
 
        # unknown meaning of this number
        unknownInt = 0
        if rawFTSW[0].GetTRGType(unknownInt) != Belle2.TRGSummary.TTYP_RAND:
            self.return_value(1)
        else:
            self.return_value(0)
 
 
class skimSVDBurstEventsModule(b2.Module):
    """
    returns True if the event is a Burst event (number of strips > max number of strips)
    use :code:`set_nMaxStrips(nMaxStrips)` to set the max number of strips of a non-burst event, default is :code:`nMaxStrips=5000`
    """
 
    def __init__(self):
        """constructor"""
 
        super().__init__()
 
        
        self.nMaxStripsnMaxStrips = 5000
 
    def set_nMaxStrips(self, user_nMaxStrips):
        """set the max strips, otherwise 5000"""
 
        self.nMaxStripsnMaxStrips = user_nMaxStrips
 
    def event(self):
        '''event'''
 
        strips = Belle2.PyStoreArray('SVDShaperDigits')
 
        if not strips.isValid():
            b2.B2WARNING('No SVDShaperDigits - event ignored')
            self.return_value(0)
 
            return
 
        if strips.getEntries() > self.nMaxStripsnMaxStrips:
            self.return_value(1)
        else:
            self.return_value(0)
 
 
class skim6SampleEventsPyModule(b2.Module):
    """
    returns True if the event is acquired with 6 samples
    """
 
    def __init__(self):
        """constructor"""
 
        super().__init__()
 
    def event(self):
        '''event'''
 
        # take SVDEventInfo or SVDvVentInfoSim
        eventInfo = Belle2.PyStoreObj('SVDEventInfo')
 
        if not eventInfo.isValid():
            eventInfo = Belle2.PyStoreObjPtr('SVDEventInfoSim')
 
        if not eventInfo.isValid():
            b2.B2WARNING('No SVDEventInfo/SVDEventInfoSim - event ignored')
            self.return_value(0)
 
            return
 
        # check if we acquired 6-sample strips in this event
        if eventInfo.getNSamples() == 6:
            self.return_value(1)
        else:
            self.return_value(0)
 
 
class skimSVDTriggerBinEventsPyModule(b2.Module):
    """
    returns True if TriggerBin of the event is the selected one,
    use :code:`set_tb(tb)` to set the value of the selected TriggerBin (0,1,2,3)
    """
 
    def __init__(self):
        """constructor"""
 
        super().__init__()
 
        
        self.tbtb = 99  # no selection of TB
 
    def set_tb(self, user_tb):
        '''set the trigger bin, otherwise 99, i.e. no selection'''
 
        self.tbtb = user_tb
 
    def event(self):
        '''event'''
 
        if int(self.tbtb) == 99:
            self.return_value(1)
 
        eventInfo = Belle2.PyStoreObj('SVDEventInfo')
 
        if not eventInfo.isValid():
            b2.B2ERROR('No SVDEventInfo - event ignored')
            self.return_value(0)
 
            return
 
        if ord(eventInfo.getModeByte().getTriggerBin()) == int(self.tbtb):
            self.return_value(1)
        else:
            self.return_value(0)
 
 
class skimFineTRGEventsPyModule(b2.Module):
    """
    returns True if the event has a fine trigger from TRGSummary
    """
 
    def __init__(self):
        """constructor"""
 
        super().__init__()
 
    def event(self):
        '''event'''
 
        trgQuality = Belle2.PyStoreObj('TRGSummary')
 
        if not trgQuality.isValid():
            b2.B2WARNING('No TRGSummary - event ignored')
            self.return_value(0)
 
            return
 
        # check trigger quality
        if trgQuality.getTimQuality() == 2:
            self.return_value(1)
        else:
            self.return_value(0)
 
 
class skimLowEventT0EventsPyModule(b2.Module):
    """
    returns True if :code:`abs(EventT0)` is smaller than a selected value
    that can be set with :code:`set_maxEventT0(evtT0)`
    """
 
    def __init__(self):
        """constructor"""
 
        super().__init__()
 
        
        self.maxEvtT0maxEvtT0 = 10  # ns
 
    def set_maxEventT0(self, user_maxEvtT0):
        '''set the maximum EventT0, otherwise 10 ns'''
 
        self.maxEvtT0maxEvtT0 = user_maxEvtT0
 
    def event(self):
        '''event'''
 
        eventT0 = Belle2.PyStoreObj('EventT0')
 
        if not eventT0.isValid():
            b2.B2ERROR('No EventT0 - event ignored')
            self.return_value(0)
 
            return
 
        if abs(eventT0.getEventT0()) < self.maxEvtT0maxEvtT0:
            self.return_value(1)
        else:
            self.return_value(0)