[Epic] TEpicData update

NPLib/Detectors/Epic/TEpicData.h

@@ -96,9 +96,10 @@ class TEpicData : public TObject {
     UShort_t GetAnodeNbr(const unsigned short& i) const { return fEpic_Data[i].AnodeNbr; }
     Double_t GetQ1(const unsigned int& i) const         { return fEpic_Data[i].Q1; }
     Double_t GetTime(const unsigned int& i) const       { return fEpic_Data[i].Time; }
-    const std::vector<Double_t>& GetDE(const unsigned int& i)           const { return fEpic_Data[i].DE; }
-    const std::vector<Double_t>& GetDT(const unsigned int& i)           const { return fEpic_Data[i].DT; }
-  //////////////////////////////////////////////////////////////
+    const std::vector<Double_t>& GetDE(const unsigned int& i)  const { return fEpic_Data[i].DE; }
+    const std::vector<Double_t>& GetDT(const unsigned int& i)  const { return fEpic_Data[i].DT; }
+    int GetStepNumbers(const unsigned int& i) const { return fEpic_Data[i].DT.size();}
+   //////////////////////////////////////////////////////////////
   // Required for ROOT dictionnary
   ClassDef(TEpicData,1)  // EpicData structure
 };