TRD nSigma OADB related new codes and modifications and OADB root file -- Xianguo Lu

[u/mrichter/AliRoot.git] / ITS / AliITSCorrMapSDD.cxx

diff --git a/ITS/AliITSCorrMapSDD.cxx b/ITS/AliITSCorrMapSDD.cxx
index 81aa8ee30f215f42e56877217fa881076e0c0904..58259956853b54d6a9cdc2c3663a7a737ed263d8 100644 (file)
--- a/ITS/AliITSCorrMapSDD.cxx
+++ b/ITS/AliITSCorrMapSDD.cxx
@@ -25,6 +25,7 @@
 #include "TH1F.h"
 #include "TH2F.h"
 #include "AliITSCorrMapSDD.h"
+#include "AliITSsegmentationSDD.h"
 
 const Int_t AliITSCorrMapSDD::fgkNAnodePtsDefault = 1;
 const Int_t AliITSCorrMapSDD::fgkNDriftPtsDefault = 72;
@@ -67,6 +68,7 @@ void AliITSCorrMapSDD::ComputeGridPoints(Float_t z, Float_t x, AliITSsegmentatio
   if(bina>=nAnodesHybrid) bina-=nAnodesHybrid;
   Float_t stept = seg->Dx()*kMicronTocm/(Float_t)fNDriftPts;
   fDrLen= seg->Dx()*kMicronTocm-TMath::Abs(x);
+  if(fDrLen<0) fDrLen=0;
   Int_t bint = TMath::Abs((Int_t)(fDrLen/stept));
   if(bint==fNDriftPts) bint-=1;
   if(bint>=fNDriftPts){