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lucieg |
1.1 |
import FWCore.ParameterSet.Config as cms
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from math import pi, sqrt
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def deltaPhi(phi0, phi1):
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res = phi0 - phi1
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while (res > pi):
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res -= 2*pi
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while (res <= - pi ):
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res += 2*pi
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return res
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def deltaR(phi0, eta0, phi1, eta1):
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dPhi = deltaPhi(phi0, phi1)
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dEta = eta0 - eta1
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dR = sqrt(dPhi*dPhi + dEta*dEta)
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return dR
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def deltaRmin(obj0, coll):
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dRmin = 9999.
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index = -1 # will remain = -1 if coll is empty
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dPt = -1
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it = 0
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for obj1 in coll :
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dR = deltaR(obj0.phi(), obj0.eta(), obj1.phi(), obj1.eta())
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if dR < dRmin :
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dRmin = dR
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index = it
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dPt = abs(obj0.pt() - obj1.pt()) / obj0.pt()
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it += 1
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if (dRmin == 9999.) :
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dRmin = -1.
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return dRmin, dPt, index
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def matched(dRmin, dPt, dRmatched, dPtMatched):
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return (dRmin < dRmatched) and (dPt < dPtMatched)
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