205 lines
7.8 KiB
Python
205 lines
7.8 KiB
Python
import json
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import numpy as np
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from onlinemodel.core import Facility
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from onlinemodel.madx import CMadX
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class Model:
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def __init__(self, phase=0, parent=None):
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print('Initializing online model ...')
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self.phase = phase # current planned future
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self.parent=parent
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self.om = Facility(init=1, alt = phase)
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self.order = None
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self.madx = CMadX()
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# hook up events
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self.eventHandling()
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def getElements(self):
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return self.om.listElement('*', 1)
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def getSettings(self):
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elements = self.getElements()
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quadrupoles={}
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sextupoles={}
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dipoles={}
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rf={}
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undulators={}
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kicker={}
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loc = 'SINLH02.MBND100'
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energy={'location': loc, 'energy':self.om.EnergyAt(loc)[0]}
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for ele in elements:
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if 'MQUA' in ele.Name:
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quadrupoles[ele.Name]={'k1':ele.k1,'k1L':ele.k1*ele.Length}
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elif 'MSEX' in ele.Name:
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sextupoles[ele.Name]={'k2':ele.k2,'k2L':ele.k2*ele.Length}
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elif 'MBND' in ele.Name:
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if 'SINLH' in ele.Name or 'SINBC' in ele.Name or 'S10BC' in ele.Name or 'SATMA' in ele.Name or 'SATUN' in ele.Name:
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dipoles[ele.Name]={'angle':ele.angle}
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elif 'UIND' in ele.Name or 'UMOD' in ele.Name:
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undulators[ele.Name]={'K':ele.K,'kx':ele.kx,'ky':ele.ky}
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elif 'RACC' in ele.Name:
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rf[ele.Name]={'Gradient':ele.Gradient*ele.Length,'Phase':ele.Phase}
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elif 'MKAC' in ele.Name or 'MKDC' in ele.Name:
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kicker[ele.Name] = {'cory': ele.cory}
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return {'Quadrupole':quadrupoles,'Sextupole':sextupoles,'Dipole':dipoles,'RF':rf,'Undulator':undulators,'Kicker':kicker,'Energy':energy}
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def loadSettingsGroup(self,group,fields):
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for key in group.keys():
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ele = self.om.getElement(key)
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for field in fields:
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ele.__dict__[field]=group[key][field]
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def loadSettings(self,settings):
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self.loadSettingsGroup(settings['Quadrupole'],['k1'])
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self.loadSettingsGroup(settings['Sextupole'], ['k2'])
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self.loadSettingsGroup(settings['Dipole'], ['angle'])
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self.loadSettingsGroup(settings['RF'], ['Gradient','Phase'])
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self.loadSettingsGroup(settings['Undulator'], ['K','kx','ky'])
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self.loadSettingsGroup(settings['Kicker'], ['cory'])
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self.om.forceEnergyAt(settings['Energy']['location'],settings['Energy']['energy'][0])
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def updateModel(self):
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file ='SwissFELRef.json'
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with open(file) as f:
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data = json.load(f)
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for key in data['settings'].keys():
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tags=key.split(':')
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elename = tags[0].replace('-','.')
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fld = tags[1]
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ele = self.om.getElement(elename)
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if 'K1L' == fld:
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ele.k1 = data['settings'][key]/ele.Length
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elif 'K2L' == fld:
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ele.k2 = data['settings'][key]/ele.Length
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elif 'Grad' == fld:
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ele.Gradient = data['settings'][key]
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elif 'Phase' == fld:
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ele.Phase = data['settings'][key]
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elif 'kx' == fld:
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ele.kx = data['settings'][key]
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elif 'ky' == fld:
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ele.ky = data['settings'][key]
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elif 'K' == fld:
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ele.K = data['settings'][key]
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elif 'Gap' == fld:
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ele.Gap = data['settings'][key]
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elif 'Offset' == fld:
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ele.Offset = data['settings'][key]
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elif 'K0L' == fld:
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ele.angle = data['settings'][key]
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elif 'KICK' == fld:
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ele.cory=data['settings'][key]
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else:
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print('Unknown tag:', key, data['settings'][key])
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def eventHandling(self):
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self.parent.UITrack.clicked.connect(self.track)
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def track(self):
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start = str(self.parent.UITrackStart.text()).upper()
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end = str(self.parent.UITrackEnd.text()).upper()
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if len(start)>7:
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start = start[0:7]
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if len(end)>7:
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end = end[0:7]
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twiss0 = self.parent.reference.getReferencePoint()
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refloc = self.parent.reference.getReferenceLocation().upper()
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twiss0['energy'] = 150.
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start, end = self.checkRange(start, end, refloc[0:7])
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if start is None:
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return
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print('Tracking from',start,'to',end)
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self.doTrack(start,end,refloc,twiss0)
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def doTrack(self, start,end, refloc, twiss_in, plot = True):
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twiss0={key+'0':twiss_in[key] for key in twiss_in.keys()}
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self.setBranch(end.upper())
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if not refloc == start:
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twiss0 = self.doBackTrack(refloc,start,twiss0)
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self.madx.updateVariables(twiss0)
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twiss = self.madx.track(start+'$START',end+'$END')
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energy = np.array([0. for i in range(len(twiss.betx))])
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e0 = 0.
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de = 0
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for i, name in enumerate(twiss.name):
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if len(name) > 15:
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elename = name[0:15]
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ele = self.om.getElement(elename)
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if not ele is None:
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erg= self.om.EnergyAt(ele)
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if e0 == 0.:
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energy[:i]+=erg[0]*1e-6
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e0 = (erg[0]+erg[1])*1e-6
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energy[i]=e0
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if plot:
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self.parent.plot.newData(twiss,energy)
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def doBackTrack(self,start=None,end=None,twiss0=None):
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twiss0['alphax0'] = -twiss0['alphax0'] # revert particle trajectories
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twiss0['alphay0'] = -twiss0['alphay0']
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twiss0['etapx0'] = -twiss0['etapx0']
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twiss0['etapy0'] = -twiss0['etapx0']
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twiss0['px0'] = -twiss0['px0']
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twiss0['py0'] = -twiss0['py0']
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self.madx.updateVariables(twiss0)
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twiss = self.madx.track(start, end+'$START', reverse=True)
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twiss1 = {}
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twiss1['betax0'] = twiss.betx[-1] # revert trajectory back
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twiss1['betay0'] = twiss.bety[-1]
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twiss1['alphax0'] = -twiss.alfx[-1]
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twiss1['alphay0'] = -twiss.alfy[-1]
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twiss1['etax0'] = twiss.dx[-1]
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twiss1['etay0'] = twiss.dy[-1]
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twiss1['etapx0'] = -twiss.dpx[-1]
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twiss1['etapy0'] = -twiss.dpy[-1]
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twiss1['x0'] = twiss.x[-1]
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twiss1['y0'] = twiss.y[-1]
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twiss1['px0'] = -twiss.px[-1]
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twiss1['py0'] = -twiss.py[-1]
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return twiss1
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def setBranch(self,end):
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destination = 'ARAMIS'
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if 'SPO' in end:
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destination = 'PORTHOS'
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elif 'SAT' in end:
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destination = 'ATHOS'
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elif 'S10BD' in end or 'SIN' in end:
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destination = 'INJECTOR'
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self.om.setBranch(destination,'SINLH01')
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self.order=self.om.getBranchElements()
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self.madx.updateLattice(self.om,destination)
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def checkRange(self,start,end,ref):
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if self.om.getSection(start) is None:
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print('Invalid staring point for tracking. Setting to SINLH01')
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startsec='SINLH01'
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else:
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startsec = self.om.getSection(start).Element[0].Name
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if self.om.getSection(end) is None:
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print('Invalid staring point for tracking. Setting to starting section')
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endsec = startsec
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else:
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endsec = self.om.getSection(end).Element[0].Name
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if self.om.getSection(ref) is None:
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print('Invalid section for reference. Aborting tracking')
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return None,None
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refsec = self.om.getSection(ref).Element[0].Name
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if not self.om.isUpstream(startsec,endsec):
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return self.checkRange(end,start,ref)
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if not self.om.isUpstream(startsec,refsec):
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start = ref
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print('Reference point is upstream the tracking range. Extending range')
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if not self.om.isUpstream(refsec,endsec):
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end = ref
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print('Reference point is downstream the tracking range. Extending range')
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return start,end
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