Problem in FindTemp fixed

[u/mrichter/AliRoot.git] / HMPID / AliHMPIDParam.h

diff --git a/HMPID/AliHMPIDParam.h b/HMPID/AliHMPIDParam.h
index 262c6b7863f0738d0eee82aa18d7141329bf6bd4..a911eb827714cea96f2c103693e36e1a80c55b1b 100644 (file)
--- a/HMPID/AliHMPIDParam.h
+++ b/HMPID/AliHMPIDParam.h
@@ -245,7 +245,8 @@ Double_t AliHMPIDParam::FindTemp(Double_t tLow,Double_t tHigh,Double_t y)
 //  return gradT*y+t1;
   Double_t halfPadSize = 0.5*SizePadY();
   Double_t gradT = (TMath::Log(SizePcY()) - TMath::Log(halfPadSize))/(TMath::Log(tHigh)-TMath::Log(tLow));
-  return tLow*TMath::Power(y/halfPadSize,1./gradT);  
+  if(y<0) y = 0;
+  return tLow + TMath::Power(y/halfPadSize,1./gradT);  
 }
 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 #endif