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

diff --git a/ITS/AliITSsegmentationSDD.cxx b/ITS/AliITSsegmentationSDD.cxx
index b870e79854b5152e57938b24132f4529439e5fb5..f50fa6fae688fcbd6b6447350c66941b28f3cc33 100644 (file)
--- a/ITS/AliITSsegmentationSDD.cxx
+++ b/ITS/AliITSsegmentationSDD.cxx
@@ -213,6 +213,9 @@ Int_t AliITSsegmentationSDD::GetChipFromLocal(Float_t xloc, Float_t zloc) const
 }
 //----------------------------------------------------------------------
 Int_t AliITSsegmentationSDD::GetChipsInLocalWindow(Int_t* array, Float_t zmin, Float_t zmax, Float_t xmin, Float_t xmax) const {
+  // returns the numbers of the chips that read channels in a given region
+  // of the module defined in local coordinates by zmin-zmax, xmin-max
+
   Int_t nChipInW = 0;
   Float_t zminDet=-fDz*fgkMicron2Cm/2.;
   Float_t zmaxDet=fDz*fgkMicron2Cm/2.;